Abrégé

This energy storage device comprises: a compressor that compresses air; a liquid supply pump that supplies a liquid medium; a first heat exchanger that exchanges heat between the air compressed by the compressor and the liquid medium supplied by the liquid supply pump; a pressure accumulator tank that stores the air having undergone the heat exchange by the first heat exchanger; a heat accumulator tank that stores the liquid medium having undergone the heat exchange by the first heat exchanger; a second heat exchanger that exchanges heat between the air stored in the pressure accumulator tank and the liquid medium stored in the heat accumulator tank; an expander that is driven by the air having undergone the heat exchange by the second heat exchanger; an air supply pipe that is connected to the pressure accumulator tank and the expander via the second heat exchanger and supplies the air supplied from the pressure accumulator tank to the expander; and a liquid supply pipe that is connected to the liquid supply pump and the expander via the first heat exchanger and the heat accumulator tank and supplies the liquid medium supplied from the liquid supply pump to the expander.

Classes IPC  ?

• F02C 6/16 - Ensembles fonctionnels de turbines à gaz comportant des moyens pour emmagasiner l'énergie, p. ex. pour faire face à des pointes de charge pour emmagasiner de l'air comprimé
• F02C 1/04 - Ensembles fonctionnels de turbines à gaz caractérisés par l'utilisation de gaz chauds ou de gaz sous pression non chauffés, comme fluide de travail le fluide de travail étant chauffé indirectement
• H02J 15/00 - Systèmes d'accumulation d'énergie électrique

Abrégé

The present invention provides a motor in which magnets can be easily separated. Provided is a SPM motor comprising, a stator, a rotor that is disposed inside of the stator and has an iron core, a shaft that is disposed at the center of the rotor, and permanent magnets that are disposed on the surface of the iron core. The iron core is provided with permanent magnet-facing holes that face the permanent magnets.

Classes IPC  ?

• H02K 1/278 - Aimants montés en surfaceAimants sertis

Abrégé

The present invention provides a temperature information calculation device that calculates information relating to time and the temperature of an object by using a time and temperature indicator, the color density of which changes in accordance with a change in temperature and time. A temperature information calculation device (100) according to the present invention comprises: a storage unit (120) that stores in advance, for a plurality of temperatures, a master curve representing the relationship between color density and time at a prescribed temperature indicated by a time and temperature indicator (400); and a calculation unit (130) that calculates information relating to the temperature of the environment in which an object is placed, using information relating to the color density read from the time and temperature indicator (400) applied to the object and the time at which the color density was read, information relating to the color density at a reference point and the time at the reference point, and the master curve stored in the storage unit (120).

Classes IPC  ?

• G01K 11/12 - Mesure de la température basée sur les variations physiques ou chimiques, n'entrant pas dans les groupes , , ou utilisant le changement de couleur, de translucidité ou de réflectance
• G01N 25/00 - Recherche ou analyse des matériaux par l'utilisation de moyens thermiques
• G01N 33/00 - Recherche ou analyse des matériaux par des méthodes spécifiques non couvertes par les groupes
• G01N 33/02 - Nourriture

Abrégé

The present invention provides a quality determining system capable of acquiring temperature information of an environment in which an object is placed, and the quality of the object, with high accuracy. The quality determining system of the present invention is provided with a quality indicator (100) and a determining device (200). The quality indicator (100) is provided with a time-temperature indicator (110) and a unique ID unit (120) from which unique ID information of the object is read. The unique ID information includes information identifying the object and data acquired from the time-temperature indicator (110) of the object. The determining device (200) comprises: an information acquiring unit (420) that acquires the color density of the time-temperature indicator (110) associated with acquired unique ID information; a time-color density calculating unit (510) that calculates an amount of change in the color density of the time-temperature indicator (110) and the elapsed time from a date and time serving as a starting point; and a temperature calculating unit (520) that uses a rate of change in the color density, the amount of change in the color density, and the elapsed time to obtain a plurality of combinations of the time and temperature of the environment in which it can be considered that the object has been placed during the elapsed time.

Classes IPC  ?

• G01K 11/12 - Mesure de la température basée sur les variations physiques ou chimiques, n'entrant pas dans les groupes , , ou utilisant le changement de couleur, de translucidité ou de réflectance
• G01N 25/02 - Recherche ou analyse des matériaux par l'utilisation de moyens thermiques en recherchant les changements d'état ou de phaseRecherche ou analyse des matériaux par l'utilisation de moyens thermiques en recherchant le frittage
• G01N 33/00 - Recherche ou analyse des matériaux par des méthodes spécifiques non couvertes par les groupes
• G06Q 10/083 - Expédition

Abrégé

This power conversion device comprises: a phase calculation unit that calculates a phase estimation value for a phase of an electric motor; a coordinate conversion unit that converts the current value of an AC current flowing through the electric motor into a current value in a rotating coordinate system on the basis of the phase estimation value calculated by the phase calculation unit; a vector control calculation unit that calculates a voltage command value for the electric motor on the basis of the current value in the rotating coordinate system; a power converter that generates the AC current on the basis of the voltage command value; and a machine learning device that has a trained machine learning model, inputs an input value including at least one of the voltage command value and the current value in the rotating coordinate system to the machine learning model, and outputs an output value related to the phase. The phase calculation unit calculates the phase estimation value on the basis of the output value.

Classes IPC  ?

• H02P 21/18 - Estimation de la position ou de la vitesse
• H02P 27/06 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p. ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs

Abrégé

Provided is a carbon dioxide recovery device capable of improving carbon dioxide adsorption performance while increasing the utilization rate of exhaust heat of a heat exchanger. This carbon dioxide recovery device includes: an air flow passage 2 connected to an outlet of an air-cooled heat exchanger 1; an adsorbent 3 for adsorbing carbon dioxide in air introduced through the air flow passage 2; a temperature sensor 4 for detecting the temperature of the air in the air flow passage 2; a flow rate adjustment part 5 for introducing, into the air flow passage 2, air outside the air flow passage 2; and a control device 6 for controlling the flow rate adjustment part 5 on the basis of a detection result of the temperature sensor 4.

Classes IPC  ?

• B01D 53/14 - Séparation de gaz ou de vapeursRécupération de vapeurs de solvants volatils dans les gazÉpuration chimique ou biologique des gaz résiduaires, p. ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par absorption
• C01B 32/50 - Anhydride carbonique

Abrégé

The present invention enables reduction of man-hours for developing a cause diagnosis model.　A cause diagnosis model construction tool 120: acquires a flow file 100 and a table file 105 indicating maintenance information including symptoms, causes, and responses at the times of failures of a target apparatus; extracts, from the flow file 100 and the table file 105, a failure mode indicating the state of a component of the target apparatus that is likely to cause the failure of the target apparatus and an inspection item indicating the state of the target apparatus for identifying the failure mode; stores the failure mode and the inspection item in a temporary storage unit 150 in association with each other; and generates a Bayesian network 183 on the basis of the failure mode and the inspection item.

Classes IPC  ?

• G05B 23/02 - Test ou contrôle électrique
• G06N 3/047 - Réseaux probabilistes ou stochastiques

Abrégé

The present invention reduces the processing load of a management device, and flexibly implements program updates for a communication device. A communication device according to the present invention is connected to a management device for distributing programs, and comprises a program update unit constituted by an update determination information acquisition unit, an update necessity determination unit, and a program application unit. The update determination information acquisition unit acquires, from the management device, update determination information for a program. The update necessity determination unit determines whether a program update is necessary for the device itself on the basis of a target device ID, a determination program necessity requirement, a target program, a post-update version, and an update form written in the update determination information, and, when an update is necessary, acquires a program from a program acquisition source written in the update determination information. The program application unit applies the acquired program to the device itself and notifies the management device about the version information of the updated program.

Classes IPC  ?

• G06F 8/65 - Mises à jour
• G06F 8/71 - Gestion de versions Gestion de configuration

Abrégé

This positioning system comprises an antenna that receives a satellite signal from a satellite, and a receiver that decodes the satellite signal received by the antenna to generate satellite information, the satellite information including at least a satellite position viewed from the antenna and a reception signal intensity. The positioning system further comprises: a visible range calculation unit that obtains a distribution of satellite positions at which the reception signal intensity is equal to or greater than a predetermined threshold and calculates a visible range from the distribution; and a positioning result output unit that outputs a positioning result on the basis of the satellite information of the satellite in the visible range. This makes it possible to achieve highly accurate positioning with a simple configuration.

Classes IPC  ?

• G01S 19/28 - Choix du satellite

Abrégé

This route design device for generating a movement route of an autonomous mobile body comprises: a reference information reception unit that receives reference information to be referred to when determining the shape of the movement route; a strictness level setting unit that sets a strictness level to be applied to the reference information; and a route generation unit that generates the movement route on the basis of the reference information and the strictness level. The reference information reception unit receives, as the reference information, a reference point designated between a movement start point and a movement end point and/or a reference line segment indicating a combination of line segments from the movement start point to the movement end point. The strictness level setting unit is able to set, as the strictness level, the degree of bringing the movement route closer to the reference point and/or the reference line segment, and is able to set different strictness levels for a plurality of pieces of the reference information. Accordingly, it is possible to generate an appropriate route according to characteristics of a travel area.

Classes IPC  ?

• G05D 1/43 - Commande de la position ou du cap par référence à un système à deux dimensions
• G05D 1/246 - Dispositions pour déterminer la position ou l’orientation utilisant des cartes d’environnement, p. ex. localisation et cartographie simultanées [SLAM]

Abrégé

This power conversion device comprises: a chopper that has a switching element, and bidirectionally converts a battery voltage and a DC link voltage using the switching element; an inverter that bidirectionally converts the DC link voltage and an AC voltage; and a control device that controls the inverter and the chopper. The control device can select, as an operating mode for controlling the chopper, one of a first mode in which the DC link voltage is controlled in accordance with a voltage command value by turning on/off the switching element, and a second mode in which the switching element is always in an on state. The control device reduces the voltage command value when the operating mode is shifted from the first mode to the second mode.

Classes IPC  ?

• H02M 3/155 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs

Abrégé

Provided is a compressed air energy storage device for achieving improved efficiency in the generation and storage of compressed air.　The compressed air energy storage device comprises: a low pressure tank 15 and a high pressure tank 17 that store compressed air; a pneumatic apparatus 16 driven by the compressed air of the low pressure tank 15; generators 19A, 19B driven by expanders 18A, 18B driven by the compressed air of the high pressure tank 17; a switching valve 20 that switches the supply destination of the compressed air from compressors 12A, 12B driven by electric motors 11A, 11B between the low pressure tank 15 and the high pressure tank 17; and a control device 30. The control device 30 controls the rotation speeds of the electric motors 11A, 11B so that the pressure of the low-pressure tank 15 becomes a first target value when the supply destination of the compressed air is the low-pressure tank 15, and controls the rotation speeds of the electric motors 11A, 11B so that the pressure of the high-pressure tank 17 becomes a second target value when the supply destination of the compressed air is the high-pressure tank 17.

Classes IPC  ?

• F02C 6/16 - Ensembles fonctionnels de turbines à gaz comportant des moyens pour emmagasiner l'énergie, p. ex. pour faire face à des pointes de charge pour emmagasiner de l'air comprimé

Abrégé

This power conversion device is connected to a DC bus to which a first DC power supply is connected and an AC grid to which a second DC power supply is connected via a power conditioner, converts the DC power of the DC bus and the AC power of the AC grid to each other, and controls the operation of the power conditioner on the basis of the voltage of the DC bus.

Classes IPC  ?

• H02M 7/48 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande

Abrégé

Provided is a compressor capable of improving an energy saving effect corresponding to a use state of compressed gas.　A control device 10 of a compressor has a control function for switching to an unload operation of a compressor body 1 when a discharge-side pressure rises to an upper limit pressure in a load operation of the compressor body 1. The control device 10 further has a control function for switching to an eco mode in which the upper limit pressure becomes a second pressure lower than a first pressure when a cycle time is equal to or longer than a determination time in a normal mode in which the upper limit pressure is the first pressure. The control device 10 records a transition of the pressure in a tank 4 detected by a tank pressure sensor 15, calculates a recommended value of the second pressure on the basis of a maximum value of a decrease width of the pressure in the tank 4, and causes the recommended value of the second pressure to be displayed on a display unit 13.

Classes IPC  ?

• F04C 28/00 - Commande, surveillance ou dispositions de sécurité pour les pompes ou les installations de pompage spécialement adaptées pour les fluides compressibles
• F04B 49/02 - Commande d'arrêt, de démarrage, de décharge ou de ralenti

Abrégé

The present invention provides a drive device for an induction motor capable of performing sensorless vector control in which an electric constant required for control is set with high accuracy for an induction motor with an unknown electric constant and thereby the induction motor is stably driven from a low speed range to a high speed range. This drive device is provided with an inverter 2 for driving an induction motor 1, a current detector 4 for detecting a current in the induction motor 1, and a controller 5 for reading the current value detected by the current detector 4 and controlling the induction motor 1 via the inverter 2. The controller 5 has speed estimators 7, 7C, 7D, and 7F for estimating and calculating the rotational speed of the induction motor 1, calculates an induced voltage generated by the induction motor 1 by using the voltage applied to the induction motor 1 and the electric constant of the induction motor 1, separately obtains a main magnetic flux direction component Ed of the induced voltage and an orthogonal component Eq of the induced voltage with respect to a main magnetic flux, calculates an error angle Δθ formed between the main magnetic flux direction component Ed and the orthogonal component Eq, adjusts a drive frequency for the induction motor 1 such that the value thereof becomes zero, and estimates and calculates the rotational speed of the induction motor 1.

Classes IPC  ?

• H02P 21/18 - Estimation de la position ou de la vitesse

Abrégé

The present invention provides an air compressor which is capable of recovering carbon dioxide while suppressing power consumption.　The air compressor comprises: compressor main bodies 3A, 3B for compressing air; an air release valve 11A which is provided in a branch pipe 10A branched from a discharge pipe 4A of the compressor main body 3A; a carbon dioxide recovery device 20A which is disposed on the downstream side of the air release valve 11A and recovers carbon dioxide in the compressed air; an air release valve 11B which is provided in a branch pipe 10B branched from a discharge pipe 4B of the compressor main body 3B; and a carbon dioxide recovery device 20B which is disposed on the downstream side of the air release valve 11B and recovers carbon dioxide in the compressed air.

Classes IPC  ?

• B01D 53/00 - Séparation de gaz ou de vapeursRécupération de vapeurs de solvants volatils dans les gazÉpuration chimique ou biologique des gaz résiduaires, p. ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols

Abrégé

The present invention improves the SN ratio of a partial discharge measurement device. The partial discharge measurement device has a first metal plate (2) and a second metal plate (1) disposed inside a panel (101) and electrically connected to the first metal plate (2) via a cable (3), and measures a current in the first metal plate (2) to measure partial discharges inside the panel (101).

Classes IPC  ?

• G01R 31/12 - Test de la rigidité diélectrique ou de la tension disruptive
• G01R 29/08 - Mesure des caractéristiques du champ électromagnétique

Abrégé

Provided is a screw compressor capable of suppressing agitation power for lubricating oil caused by a gear.　The screw compressor comprises: a male rotor 1; a bearing 7 that rotatably supports a shaft portion 5A of the male rotor 1; a bearing retainer 15A that fixes the outer ring of the bearing 7; and a synchronization gear 16A that is attached to the shaft portion 5A of the male rotor 1. The synchronization gear 16A, the bearing retainer 15A, the bearing 7, and a tooth portion 3 of the male rotor 1 are arranged in the stated order. A groove 22A for guiding lubricating oil flowing out of the bearing 7 is formed in an outer end face, of the bearing retainer 15A, facing the synchronization gear 16A. The groove 22A extends from an inner end that opens to the inner peripheral face of the bearing retainer 15A to an outer end that is located radially outward of the synchronization gear 16A.

Classes IPC  ?

• F04C 18/16 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement extérieur, c.-à-d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés d'un autre type qu'à axe interne avec des pistons rotatifs dentés à dents hélicoïdales, p. ex. du type ayant la forme d'un chevron, du type à vis
• F04C 29/02 - LubrificationSéparation du lubrifiant

Abrégé

This motor control device performs position sensorless vector control using a forward salient-pole model of a synchronous reluctance motor. The motor control device comprises: a velocity control calculation unit that calculates a current command value on the basis of the difference between a velocity command value and a velocity estimation value, the velocity estimation value, and a limit value of a q-axis current command value that is changed according to a proportional gain of velocity estimation; a vector control calculation unit that calculates a voltage command value on the basis of a current detection value, the current command value, and the velocity estimation value; a phase error estimation calculation unit that calculates an estimation value of a phase error on the basis of the voltage command value, the velocity estimation value, and the current detection value; and a frequency and phase estimation calculation unit that calculates the velocity estimation value and a phase estimation value on the basis of the estimation value of the phase error and the velocity command value. Thus, it is possible to automatically select and set parameters related to high efficiency and high responsiveness in the synchronous reluctance motor using a sensorless control system.

Classes IPC  ?

• H02P 21/22 - Commande du courant, p. ex. en utilisant une boucle de commande
• H02P 25/08 - Moteurs à réluctance
• H02P 27/06 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p. ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs

Abrégé

Provided are a compressor and a management system that are capable of extending the operating life of a compressor while easing the burden on a user.　A compressor 1 comprises a compressor body 3 that compresses air, and a control device 17 that controls the operation of the compressor body 3. If operation of the compressor body 3 is resumed when the stop time of the compressor body 3 is greater than or equal to a preset time A, the control device 17 executes a diagnostic operation mode which determines the presence or absence of abnormalities while reducing the load on the compressor body 3 relative to a regular operation mode.

Classes IPC  ?

• F04B 49/02 - Commande d'arrêt, de démarrage, de décharge ou de ralenti
• F04B 49/10 - Autres mesures de sécurité
• F04B 51/00 - Tests des "machines", pompes ou installations de pompage

Abrégé

Provided is an energy storage device using compressed air and connected to a pneumatic device driven by air pressure, and the energy storage device comprises: an electric motor driven by electric power from a power transmission/distribution system to which a regenerative energy power generation device is connected; a compressor driven by the electric motor; an accumulator tank for storing compressed air compressed by the compressor as compressed air or liquid air; an expander driven by the compressed air stored in the accumulator tank; a power generator driven by the expander; a pipe through which the compressed air passes; a solenoid valve provided in the pipe; a pressure sensor for detecting a pressure of the pipe; and a control device for controlling the solenoid valve. The pipe includes a pneumatic supply pipe connected to the pneumatic device. The control device controls the solenoid valve to drive the expander by compressed air exceeding a predetermined pressure, and controls the solenoid valve to supply compressed air equal to or lower than the predetermined pressure from the pneumatic supply pipe to the pneumatic device.

Classes IPC  ?

• H02J 15/00 - Systèmes d'accumulation d'énergie électrique
• F02C 6/06 - Ensembles fonctionnels de turbines à gaz délivrant un fluide de travail chauffé ou pressurisé à d'autres appareils, p. ex. sans sortie de puissance mécanique délivrant des gaz comprimés
• F02C 6/16 - Ensembles fonctionnels de turbines à gaz comportant des moyens pour emmagasiner l'énergie, p. ex. pour faire face à des pointes de charge pour emmagasiner de l'air comprimé
• H02J 3/28 - Dispositions pour l'équilibrage de charge dans un réseau par emmagasinage d'énergie

Abrégé

Provided is a rotating electrical machine that obviates the need for a welding step in the bonding of a distal end section and that achieves an improvement in productivity. The rotating electrical machine comprises a stator coil in which a first rectangular wire and a second rectangular wire fit together. The first rectangular wire has a protruding part and the second rectangular wire has an indented part. The protruding part and the indented part are configured so as to fit together by insertion. The protruding part has projections and the indented part has grooves on surfaces, from among surfaces constituting the protruding part and the indented part, that run along a direction of extension of the first rectangular wire and the second rectangular wire. A pair of projections and a pair of grooves are provided to serve as the projections and the grooves.

Classes IPC  ?

• H02K 3/12 - Enroulements caractérisés par la configuration, la forme ou le genre de construction du conducteur, p. ex. avec des conducteurs en barre disposés dans des encoches
• H02K 15/064 - Enroulements constitués de segments séparés

Abrégé

An appearance inspection system 1 comprises: a photographing part 10 for photographing an inspection object while changing photographing conditions; illumination parts 20 for irradiating the inspection object with irradiation light; a diagnosis part 80 for diagnosing appearance of the inspection object on the basis of the image photographed by the photographing part 10, using a trained model 70 trained for each photographing condition on the basis of a non-defective inspection object; and an inspection order determination part 100 for determining an inspection order in which the photographing conditions are changed, on the basis of occurrence frequency of defects for each photographing condition. As a result, it is possible to provide an appearance inspection system, a control device, and a control method that suppress an increase in time required for a pass/fail determination of an inspection object, even if the number of inspection items for defects to be detected increases.

Classes IPC  ?

• G01N 21/88 - Recherche de la présence de criques, de défauts ou de souillures
• G06N 20/00 - Apprentissage automatique
• G06T 7/00 - Analyse d'image
• G06V 10/82 - Dispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant les réseaux neuronaux

Abrégé

Provided is a rotating electric machine capable of reducing eddy current loss and hysteresis loss generated at a part where an electromagnetic steel sheet is fastened.　In the rotating electric machine comprising a stator and a rotator provided inside the stator, the stator has a stator core, a stator slot disposed in the circumferential direction of the stator core, and a stator winding disposed in the stator slot, and the rotor has a central shaft, a rotor slot, and a rotor conductor. The stator has a low-resistance fastening member on the outer periphery of the stator core, and the low-resistance fastening member has a fastening part provided outside the stator and a stator conductor provided inside the stator, wherein electric resistance of the fastening part is smaller than electric resistance of the stator conductor.

Classes IPC  ?

• H02K 1/18 - Moyens de montage ou de fixation des parties magnétiques fixes sur ou aux structures constituant le stator

Abrégé

According to the present invention, an inventory management system that performs inventory management of a plurality of consumables that include ink and intensifier that are to be used by an inkjet printer comprises an information reading device that reads RFID information that includes at least a lot number and an expiration date from RFID tags on the consumables, an information management device that stores RFID information for the consumables that are installed and in use at the inkjet printer and RFID information for each of a plurality of the consumables that are being stored as inventory at the location where the inkjet printer is installed, and a control device that controls the operation of the inkjet printer. When the consumables that are installed at the inkjet printer are to be replaced, the control device presents the lot numbers of consumables that are recommended for the replacement on the basis of the RFID information for the consumables that are stored as inventory. The present invention thereby makes it possible to more appropriately manage the expiration dates of consumables such as ink and intensifier.

Classes IPC  ?

• G06Q 10/087 - Gestion d’inventaires ou de stocks, p. ex. exécution des commandes, approvisionnement ou régularisation par rapport aux commandes

Abrégé

Provided is a three-level power conversion device capable of suppressing a surge voltage generated in association with commutation. This power conversion device comprises a first circuit board (301), a second circuit board (302), and a third circuit board (303). The first circuit board (301) has first circuit board sections, equal in number to the number of phases, in which an upper arm circuit is configured, and each first circuit board section has a first flat-plate conductor that serves as wiring in the upper arm circuit. The second circuit board (302) has second circuit board sections, equal in number to the number of phases, in which a clamp circuit is configured, and each second circuit board section has a second flat-plate conductor that serves as wiring in the clamp circuit. The third circuit board (303) has third circuit board sections, equal in number to the number of phases, in which a lower arm circuit is configured, and each third circuit board section has a third flat-plate conductor that serves as wiring in the lower arm circuit. The first circuit board, the second circuit board, and the third circuit board are stacked on each other such that the second circuit board is positioned between the first circuit board and the third circuit board.

Classes IPC  ?

• H02M 7/48 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande
• H02M 7/487 - Onduleurs bloqués au point neutre

Abrégé

A power conversion device (11) comprises: a temperature history calculation unit (31) that, on the basis of a prescribed bonding section temperature function (Ftj) which correlates with a bonding section temperature (Tj) pertaining to power semiconductor devices (Q1-Q6), acquires information about a bonding section temperature history (Tjr) pertaining to the power semiconductor devices (Q1-Q6); and a damage calculation unit (39) that, on the basis of the bonding section temperature history (Tjr) acquired by the temperature history calculation unit (31), calculates a degree of damage (DD) pertaining to the power semiconductor devices (Q1-Q6), wherein the damage calculation unit (39) calculates the degree of damage (DD) pertaining to the power semiconductor devices (Q1-Q6) for each failure rate (FR) across a plurality of patterns, by referring to a tolerance characteristic table (41) in which tolerance characteristic data pertaining to the power semiconductor devices (Q1-Q6) is associated with each failure rate (FR) across the plurality of patterns. Thus, the degree of damage pertaining to the power semiconductor devices (Q1-Q6) is quantitatively presented to a user in a manner that is easy to understand.

Classes IPC  ?

• H02M 7/48 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande
• H03K 17/00 - Commutation ou ouverture de porte électronique, c.-à-d. par d'autres moyens que la fermeture et l'ouverture de contacts

Abrégé

2222 adsorption amount estimation formula learned in advance by using operation information of a crane.

Classes IPC  ?

• B66C 13/00 - Autres caractéristiques de structure ou détails
• B66C 17/00 - Ponts roulants à chariot transbordeur comportant une ou plusieurs poutres principales sensiblement horizontales dont les extrémités reposent directement sur des roues ou des rouleaux se déplaçant sur une voie soutenue par des supports espacés

Abrégé

Provided is a drain amount estimation device capable of quickly estimating the amount of drain mixed in oil.　This drain amount estimation device for estimating the amount of drain mixed in oil that exchanges heat with a cooling medium by an oil cooler 8 comprises: an oil temperature sensor 11A for detecting the oil temperature on the upstream side of the oil cooler 8; an oil temperature sensor 11B for detecting an oil temperature on the downstream side of the oil cooler 8; and a calculation device 12 for calculating the change amount ΔTA of the oil temperature caused by the oil cooler 8 on the basis of detection results of the oil temperature sensors 11A, 11B, and calculating the amount of drain mixed in the oil on the basis of the change amount ΔTA of the oil temperature.

Classes IPC  ?

• F25B 49/02 - Disposition ou montage des dispositifs de commande ou de sécurité pour machines, installations ou systèmes du type à compression
• F25B 1/00 - Machines, installations ou systèmes à compression à cycle irréversible

Abrégé

The present invention comprises: a first beam splitter that splits a laser beam into a main beam and a sub-beam; a sub-beam scanning unit formed from a plurality of two-mirror pairs that cause the sub-beam to scan; a second beam splitter that transmits the main beam and reflects the sub-beam; a main beam scanning unit that causes a multi-beam formed from the main beam having passed through the second beam splitter and the sub-beam to scan across a printing target; and a control unit that controls the operations of the sub-beam scanning unit and the main beam scanning unit. The control unit controls the main beam and the sub-beam on the basis of the scanning direction of the multi-beam, which changes on the printing target, and controls the sub-beam scanning unit so that the main beam and the sub-beam are arranged side by side with respect to the changing scanning direction of the multi-beam.

Classes IPC  ?

• B23K 26/00 - Travail par rayon laser, p. ex. soudage, découpage ou perçage
• B23K 26/067 - Division du faisceau en faisceaux multiples, p. ex. foyers multiples
• B23K 26/082 - Systèmes de balayage, c.-à-d. des dispositifs comportant un mouvement relatif entre le faisceau laser et la tête du laser

Abrégé

This fluid machine comprises: a compressor body 1; a compressor body 2; an intake passage 12 that is connected to an intake port of the compressor body 1; air passages 14, 16, 18, 20 that allow communication between a discharge port of the compressor body 1 and an intake port of the compressor body 2; a three-way valve 32 that is provided to the air passages; an intake passage 13 that is connected to one port of the three-way valve 32; a low-pressure air tank 51 that is connected to an air passage 19 that branches from the air passages on the upstream side of the three-way valve 32; a high-pressure air tank 52 that allows communication between a discharge port of the compressor body 2 and air passages 21, 23, 25, 27; a first opening/closing valve that is provided to the air passage 19; a three-way valve 36 that is provided to the air passages 21, 23, 25, 27; an air passage 26 that connects at least one port of the three-way valve 36 and the air passage 19 on the downstream side of the first opening/closing valve; a three-way valve 36 that is provided to the air passages 21, 23, 25, 27; a controller 5 that is connected to a motor 3 for operating the compressor body 1; a controller 6 that is connected to a motor 4 for operating the compressor body 2; and a control unit 7 that controls the controller 5 and the controller 6.

Classes IPC  ?

• F04D 17/14 - Pompes multiétagées avec moyens de changer le trajet du flux à travers les étages, p. ex. par des transformations série-parallèle
• F04B 41/06 - Combinaisons de plusieurs pompes
• F04D 27/00 - Commande, p. ex. régulation, des pompes, des installations ou des systèmes de pompage spécialement adaptés aux fluides compressibles

Abrégé

This inkjet recording device comprises: a nozzle 21 that discharges ink; an electric charging electrode 22 that electrically charges the ink discharged from the nozzle 21; a deflection electrode 23 that deflects the electrically charged ink; an electric charging voltage control unit 30 that controls an electric charging voltage applied to the ink by the electric charging electrode; a sensor 26 for obtaining the discharge rate of the ink discharged from the nozzle; and a control unit 10 that controls the electric charging voltage control unit 30 to control printing on an object to be printed on. The control unit 10 obtains the discharge rate of the ink discharged from the nozzle 21 by using the sensor 26, and, on the basis of the obtained discharge rate, controls a timing at which to electrically charge the ink by the electric charging electrode 22.

Classes IPC  ?

• B41J 2/02 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par le procédé de formation du jet en produisant un jet d'encre continu
• B41J 2/01 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre
• B41J 2/085 - Moyens de charge, p. ex. électrodes
• B41J 2/195 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par la manipulation de l'encre pour contrôler la qualité de l'encre

Abrégé

The present invention extracts equipment that is operating inefficiently and/or deteriorated equipment from acquired operation data. According to the present invention, in a method for diagnosing settings of fluid machinery on the basis of information detected by a sensor installed in the fluid machinery, at least one of a load factor of the fluid machinery, a set pressure and a discharge pressure, an ambient temperature, a discharge temperature, a count of warning alarms issued, and time of operation, is input as analysis information, determination is made from the analysis information regarding whether or not there is room for improvement in settings of the fluid machinery, the number of days in which determination is made that there is room for improvement is counted over a predetermined period, an improvement settings plan for the fluid machinery based on the analysis information is created when the count exceeds a threshold value, and the improvement settings plan is provided to a user of the fluid machinery.

Classes IPC  ?

• G05B 23/02 - Test ou contrôle électrique

Abrégé

Provided is a data acquisition method in which a language model can generate an accurate answer. This data acquisition method executed by one or more computer devices connected to one or more language models comprises: generating, by a computer device, a prompt for identifying a database including information related to a question content of a user; inputting, by the computer device, the prompt to a language model; and receiving, by the computer device and from the language model, at least one of the location of the database, the name of the database, the format of the database, and information of a column of the database.

Classes IPC  ?

• G06F 16/28 - Bases de données caractérisées par leurs modèles, p. ex. des modèles relationnels ou objet
• G06F 16/90 - Détails des fonctions des bases de données indépendantes des types de données cherchés

Abrégé

The present invention efficiently sterilizes a safety cabinet. An indoor exhaust-type safety cabinet equipped with two fans, a clean air supply fan to a working chamber and an exhaust fan to a inside a clean room, wherein a sterilization mode changeover switch is provided or information of a sterilization mode can be input, and the output of the air supply fan is reduced in the sterilization mode in comparison to during normal operation.

Classes IPC  ?

• B01L 1/00 - EnceintesChambres
• C12M 1/00 - Appareillage pour l'enzymologie ou la microbiologie

Abrégé

The purpose of the present invention is to provide a cap for a replenishing container and an inkjet recording device capable of reducing an operation force required for attaching/detaching a replenishing container while suppressing contamination caused by ink or a solvent when attaching/detaching the replenishing container for replenishing ink or a solvent. For this purpose, a replenishment container 301 comprises: a storage member 311 having a cylindrical tip part 322 extending from one end part of a storage chamber 321 and having an opening part formed at the tip; a first plug member 312 for sealing the opening part; a lid member 313 in which a first through-hole 353 concentric with the tip part 322 is formed and which fixes the first plug member 312 to the tip part 322; and a cylindrical seal member 314 in which a second through-hole 361 concentric with the first through-hole 353 is formed. The smallest inner diameter of the second through-hole 361 is smaller than the inner diameter of the first through-hole 353, and an annular deformation groove 319 concentric with the second through-hole 361 is formed on a bottom surface part 317 or an upper surface part 318 of the seal member 314.

Classes IPC  ?

• B41J 2/175 - Systèmes d'alimentation en encre

Abrégé

The present invention efficiently sterilizes a safety cabinet. An indoor exhaust type safety cabinet having two fans, a clean air supply fan to a working chamber and an exhaust fan to inside a clean room, wherein a sterilization mode changeover switch operated at the time of sterilization in the clean room or a changeover signal is provided, and a slit or an opening/closing type damper mechanism directly connected to an exhaust flow passage is provided in the upper part of the back surface of the working chamber.

Classes IPC  ?

• B01L 1/00 - EnceintesChambres
• A61L 2/20 - Procédés ou appareils de désinfection ou de stérilisation de matériaux ou d'objets autres que les denrées alimentaires ou les lentilles de contactAccessoires à cet effet utilisant des substances chimiques des substances gazeuses, p. ex. des vapeurs
• C12M 1/00 - Appareillage pour l'enzymologie ou la microbiologie

Abrégé

Provided is an oil feed type air compressor capable of detecting the amount of drained liquid without separating drained liquid and oil.　The oil feed type air compressor comprises: a compressor body 2 for compressing air while injecting oil into an operation chamber; a separator 5 for separating oil from the compressed air discharged from the compressor body 2; an oil cooler 10 for cooling the oil separated in the separator 5 and supplying the oil to the operation chamber of the compressor body 2; a temperature sensor 14 for detecting the temperature of the oil separated in the separator 5; and a control device 9 for calculating the amount of drain mixed in the oil. The control device 9 calculates the increase amount of the temperature of the oil, on the basis of a detection result of the temperature sensor 14, when a predetermined time has elapsed after the compressor body 2 activates, and calculates the amount of the drain on the basis of the increase amount of the temperature of the oil.

Classes IPC  ?

• F04B 39/16 - FiltrageDéshumidification

Abrégé

Provided are a compressor control system capable of achieving energy saving, and a compressor control method. This compressor control system comprises: a compressor for compressing gas; a sequencing control panel; and a pressure gauge for measuring a terminal pressure of a piping system that is connected to the compressor. A packaged compressor has a measurement unit, a determination unit, a setting unit, a control unit, and the compressor. The sequencing control panel has a measurement unit and an analog output unit. The sequencing control panel sends a first pressure that is received at the measurement unit from the pressure gauge, to the measurement unit through the analog output unit in the form of an analog signal. In the packaged compressor, the measurement unit sends the received analog signal to the determination unit as a pressure, the determination unit determines a relationship between the pressure and a threshold value which is stored in advance in the setting unit, and the control unit carries out compression control by controlling the compressor on the basis of the determination result derived by the determination unit.

Classes IPC  ?

• F04B 49/06 - Commande utilisant l'électricité
• F04B 41/00 - Installations ou systèmes de pompage spécialement adaptés aux fluides compressibles

Abrégé

The present invention corrects a local route in a local region on the basis of an entire route and a local parameter.

Classes IPC  ?

• G05D 1/622 - Évitement d’obstacles
• G05D 1/43 - Commande de la position ou du cap par référence à un système à deux dimensions
• G05D 1/246 - Dispositions pour déterminer la position ou l’orientation utilisant des cartes d’environnement, p. ex. localisation et cartographie simultanées [SLAM]

Abrégé

Provided is a rotary electric machine that incorporates busbars and has a simple structure that has good workability. A rotary electric machine according to the present invention includes a coil that is wound in stator slots. A crossover plate that is provided on the coil end axial direction outside comprises a plurality of busbar rows that comprise a plurality of busbars that are arranged in a row in the circumferential direction. All of the busbar rows include busbars of different phases.

Classes IPC  ?

• H02K 3/50 - Fixation des têtes de bobines, des connexions équipotentielles ou des connexions s'y raccordant
• H02K 3/04 - Enroulements caractérisés par la configuration, la forme ou le genre de construction du conducteur, p. ex. avec des conducteurs en barre

Abrégé

To provide a system whereby an air compressor that cannot be paused for long durations can autonomously determine the update timing of software according to the load state of the air compressor. As a means therefor, a compressor system is used, the compressor system including: a compressor body that generates compressed air; a motor that drives the compressor body; and a control unit that stores a program and controls the motor according to the program. The control unit calculates the time required for updating the program and then updates the program if it is determined that the time required for the update can be secured during no-load operation of the compressor body.

Classes IPC  ?

• F04B 49/02 - Commande d'arrêt, de démarrage, de décharge ou de ralenti
• F04B 41/00 - Installations ou systèmes de pompage spécialement adaptés aux fluides compressibles

Abrégé

This bearing measurement system comprises a first positioning unit that includes a first GNSS antenna and a first GNSS module, a second positioning unit that includes a second antenna and a second GNSS module, and a communication device. The first positioning unit calculates first position information from a GNSS signal by using the first GNSS module, and transmits the first position information to the communication device through digital communication. The second positioning unit calculates second position information indicating the position of the second antenna from the GNSS signal by using the second GNSS module, and transmits the second position information to the communication device through digital communication. The communication device calculates bearing information on the basis of the first position information and the second position information.

Classes IPC  ?

• G01S 19/53 - Détermination d'attitude

Abrégé

The present invention easily realizes measures for remote monitoring of an apparatus. This information collection device has, in a housing, a power supply unit, a communication unit, a control unit, and a terminal block. Various information from the terminal block can be aggregated by the control unit and transmitted by the communication unit.

Classes IPC  ?

• H02J 13/00 - Circuits pour pourvoir à l'indication à distance des conditions d'un réseau, p. ex. un enregistrement instantané des conditions d'ouverture ou de fermeture de chaque sectionneur du réseauCircuits pour pourvoir à la commande à distance des moyens de commutation dans un réseau de distribution d'énergie, p. ex. mise en ou hors circuit de consommateurs de courant par l'utilisation de signaux d'impulsion codés transmis par le réseau
• H04Q 9/00 - Dispositions dans les systèmes de commande à distance ou de télémétrie pour appeler sélectivement une sous-station à partir d'une station principale, sous-station dans laquelle un appareil recherché est choisi pour appliquer un signal de commande ou pour obtenir des valeurs mesurées

Abrégé

The present invention improves the ease of maintenance work for a safety work device. This safety work device has: a main section that is provided with a work space for performing work; and an exhaust chamber section that forms an exhaust flow passage for air in the work space. The exhaust chamber section is provided to the back surface of the main section. The safety work device is installed so as to face a wall surface body. The main section is installed on the front side of the wall surface body, and the exhaust chamber section is installed on the rear side of the wall surface body so as to protrude therefrom.

Classes IPC  ?

• F24F 7/06 - Ventilation avec réseau de gaines à circulation d'air forcée, p. ex. par un ventilateur
• B01L 1/00 - EnceintesChambres
• F24F 7/10 - Ventilation avec réseau de gaines à circulation d'air forcée, p. ex. par un ventilateur avec amenée ou évacuation de l'air au travers de parois, planchers ou plafonds perforés

Abrégé

A gas compressor 100 is provided with a suction duct 2, a compressor 3, and a plurality of noise reduction portions 230 for reducing noise generated by operation of the compressor 3. The noise reduction portions 230 are provided inside the suction duct 2 and at different positions in the extending direction of the suction duct 2. One side of a rectangular cross-section of each noise reduction portion 230 has the cross-sectional length different from the length of one side of a rectangular cross-section of the suction duct 2. In each noise reduction portion 230, the cross-sectional length varies according to the wavelength of noise corresponding to a plurality of frequencies at which the sound pressure level of the noise reaches a peak. The cross-sectional length is longer than half the wavelength of each noise and shorter than one wavelength.

Classes IPC  ?

• F04B 39/00 - Parties constitutives, détails ou accessoires de pompes ou de systèmes de pompage spécialement adaptés aux fluides compressibles, non prévus dans les groupes ou présentant un intérêt autre que celui visé par ces groupes
• F04C 29/06 - Étouffement du bruit

Abrégé

Provided is a power conversion device comprising: a first voltage command generation unit that generates a first voltage command on the basis of a predetermined rated voltage; an angular frequency command generation unit that generates an angular frequency command for alternating current power on the basis of an active power command input from the outside; a phase command generation unit that generates a phase command on the basis of the angular frequency command; a current command generation unit that generates a current command for the alternating current power on the basis of the phase command and the first voltage command; a harmonic current command generation unit that generates a harmonic current command; and a current control unit that generates a voltage command for the alternating current power on the basis of the current command generated by the current command generation unit and the harmonic current command generated by the harmonic current command generation unit. The harmonic current command generation unit acquires reference information synchronized with a power system or absolute time information, and determines the phase of the harmonic current command on the basis of the reference information or the time information.

Classes IPC  ?

• H02M 7/48 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande
• H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs

Abrégé

In the present invention, a power converter comprises an active power command correction unit for obtaining a corrected active power command obtained by correcting an active power command inputted from outside the power converter, a current command generation unit for generating a pre-restriction current command for AC power, a current command restriction unit for generating a current command in which a restriction based on a prescribed limit value is imposed on the pre-restriction current command, a current control unit for generating a voltage command for the AC power on the basis of the current command, and a suppressed power calculation unit for determining the suppressed power suppressed by the AC power due to the restriction, wherein the current command restriction unit generates the current command on the basis of the result from comparing the limit value and a current value obtained by combining active and reactive components of the pre-restriction current command, the suppression power calculation unit calculates the difference between pre-restriction power corresponding to the pre-restriction current command and post-restriction power corresponding to the current command to determine the suppression power, and the active power command correction unit corrects the active power command on the basis of the suppressed power obtained by the suppression power calculation unit.

Classes IPC  ?

• H02M 7/48 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande
• H02J 3/32 - Dispositions pour l'équilibrage de charge dans un réseau par emmagasinage d'énergie utilisant des batteries avec moyens de conversion
• H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs

Abrégé

Provided is a structure suitable for a gas-insulated switchgear when using an alternative gas for SF6 gas. The gas-insulated switchgear has a pressure vessel, an electric contact provided inside the pressure vessel, and an insulating gas filled in the pressure vessel, wherein the cross-sectional shape of the pressure vessel has a curved surface.

Classes IPC  ?

• H02B 13/035 - Appareillages de commutation à isolation gazeuse

Abrégé

This invention provides a concept applicable to storage containers in general, and using the concept, provides a small-sized switch at a low cost. This switch has a pressure container provided with an electric contact inside, and has a storage container for storing the pressure container, the storage container being formed so as to cover the pressure container.

Classes IPC  ?

• H02B 13/02 - Aménagement d'appareillages de commutation dans, ou structurellement associés avec, une enveloppe, p. ex. une armoire avec une enveloppe métallique
• H01H 33/56 - Réservoirs à gaz
• H02B 1/48 - Montage de dispositifs à l'intérieur de ces boîtiers
• H02B 1/56 - RefroidissementVentilation

Abrégé

This facility management system comprises: a wireless communication device which is attached to a facility to be managed and is capable of performing short-range wireless communication with a communication terminal existing in the vicinity; a server in which operation data on an operation state of the facility is stored; and a mobile communication terminal which receives the operation data transmitted from the wireless communication device through the short-range wireless communication and transmits the received operation data to the server through a mobile network. The wireless communication device acquires the operation data for the facility, and transmits at least a part of the acquired operation data to the mobile communication terminal by means of an advertisement signal of the short-range wireless communication.

Classes IPC  ?

• G06Q 50/04 - Fabrication

Abrégé

According to the present invention, a control device that is equipped with an RM socket and an RM interface and periodically performs control processing of a controlled device receives designation of a mode and sets the designated mode. The control device periodically performs a license check to determine whether or not an RM storing license data representing a license for a program to be protected is inserted into the socket and connected to the RM interface. If the license check result is not false, the control device executes the program to be protected in the control processing. If the set mode is a stop mode, which means that the license check be stopped, the control device stops performing the license check.

Classes IPC  ?

• G06F 21/12 - Protection des logiciels exécutables
• G05B 19/042 - Commande à programme autre que la commande numérique, c.-à-d. dans des automatismes à séquence ou dans des automates à logique utilisant des processeurs numériques

Abrégé

The present invention comprises: a low-pressure stage compressor body (1); a high-pressure stage compressor body (2) that compresses a gas compressed by the low-pressure stage compressor body (1); intermediate piping (3) connecting the discharge side of the low-pressure stage compressor body (1) and the intake side of the high-pressure stage compressor body (2); a sensor (4) that detects the dew point or the humidity of gas in the intermediate piping (3); supply piping (5) that communicates with the intermediate piping (3) and supplies a drying gas into the intermediate piping (3); and a valve (6) that is provided to the supply piping (5) and in which the opening degree is adjusted in accordance with the detection value of the sensor (4) while compressor operation is stopped.

Classes IPC  ?

• F04B 39/00 - Parties constitutives, détails ou accessoires de pompes ou de systèmes de pompage spécialement adaptés aux fluides compressibles, non prévus dans les groupes ou présentant un intérêt autre que celui visé par ces groupes
• F04B 39/12 - Carcasses d'enveloppeCylindresCulassesConnexions des tubulures pour fluide
• F04C 18/16 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement extérieur, c.-à-d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés d'un autre type qu'à axe interne avec des pistons rotatifs dentés à dents hélicoïdales, p. ex. du type ayant la forme d'un chevron, du type à vis
• F04C 28/28 - Dispositions de sécuritéSurveillance

Abrégé

The present invention provides a power conversion device capable of continuing operation even if instantaneous voltage drop due to a system accident occurs during interconnection operation. To do so, a first voltage command generation unit (307) generates a first voltage command V1 from a reactive power command Qo and reactive power Qout obtained by measurement and calculation. A current command generation unit (308) generates a current command I* from a measurement voltage Vout and the first voltage command V1. A current command restriction unit (309) applies a constraint to and outputs the current command I*. A second voltage command generation unit (310) generates a second voltage command V* from the constrained current command and a measurement current Iout. A control circuit (3) controls a power conversion circuit (2) on the basis of the second voltage command V*.

Classes IPC  ?

• H02M 7/48 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande

Abrégé

This motor control device for controlling a multiple winding magnet motor driven by an inverter comprising a master inverter and one or more slave inverters includes a gain multiplication unit for adjusting the magnitude of a voltage command value of the slave inverter on the basis of current voltage information that is information indicating an operation state of the master inverter. Thus, stable operation can be realized without falling into an overcurrent.

Classes IPC  ?

• H02P 25/22 - Enroulements multiplesEnroulements pour plus de trois phases

Abrégé

Peroxide-based radical polymerization initiators used in molds are mostly substances unstable to heat and thus have a short usable period due to decomposition even at room temperature. An electrically insulating resin composition according to the present invention is obtained by mixing and stirring a heated epoxy main agent and a heated curing agent, adding a heated radical agent thereto and stirring, and adding a radical polymerization initiator and a reducing agent thereto and stirring.

Classes IPC  ?

• C08L 63/00 - Compositions contenant des résines époxyCompositions contenant des dérivés des résines époxy
• B29C 39/18 - Moulage par coulée, c.-à-d. en introduisant la matière à mouler dans un moule ou entre des surfaces enveloppantes sans pression significative de moulageAppareils à cet effet pour la fabrication d'objets de longueur indéfinie en incorporant des parties ou des couches préformées, p. ex. coulée autour d'inserts ou sur des objets à recouvrir
• C08F 2/44 - Polymérisation en présence d'additifs, p. ex. plastifiants, matières colorantes, charges
• C08F 4/40 - Systèmes redox
• C08G 59/42 - Acides polycarboxyliquesLeurs anhydrides, halogénures ou esters à bas poids moléculaire
• H01B 3/40 - Isolateurs ou corps isolants caractérisés par le matériau isolantEmploi de matériaux spécifiés pour leurs propriétés isolantes ou diélectriques composés principalement de substances organiques matières plastiquesIsolateurs ou corps isolants caractérisés par le matériau isolantEmploi de matériaux spécifiés pour leurs propriétés isolantes ou diélectriques composés principalement de substances organiques résinesIsolateurs ou corps isolants caractérisés par le matériau isolantEmploi de matériaux spécifiés pour leurs propriétés isolantes ou diélectriques composés principalement de substances organiques cires résines époxy
• B29K 63/00 - Utilisation de résines époxy comme matière de moulage

Abrégé

Provided is a gas compression device including: at least one gas compressor (compressor body 1, 2); an oil reservoir (case 3) for storing oil; an oil pump 5 for feeding oil from the oil reservoir to the gas compressor; an oil smoke recovery device 28 for recovering oil smoke from the oil reservoir and extracting oil; an oil accumulation device (device 30) for accumulating the oil extracted by the oil smoke recovery device 28 and discharging oil when the accumulated oil exceeds a predetermined amount; a first path (path 12) that connects the oil reservoir and a suction port of the oil pump 5; a second path (paths 33, 34) that connects the oil smoke recovery device 28 and the oil accumulation device; a third path (paths 36, 37) that connects the oil accumulation device and the first path; and a processor that performs control such that, when solid matter of oil is generated in the third path, a fluid is made to flow into the second path and is discharged from the oil accumulation device to the third path.

Classes IPC  ?

• F04B 39/16 - FiltrageDéshumidification

Abrégé

The present invention provides an industrial equipment operation support system capable of efficiently supporting operation of industrial equipment and providing operation support appropriate even to non-experts. The industrial equipment operation support system has a server capable of accessing information on a plurality of pieces of industrial equipment. The server has a general agent and equipment agent for generating an answer to a question received through an input means. The general agent receives input of only a part of the information on the plurality of pieces of industrial equipment for all of the plurality of pieces of industrial equipment, and the equipment agent receives input of the information on the plurality of pieces of industrial equipment for only a part of the plurality of pieces of industrial equipment.

Classes IPC  ?

• G06Q 50/04 - Fabrication
• G05B 23/02 - Test ou contrôle électrique
• G06F 3/16 - Entrée acoustiqueSortie acoustique
• G06N 20/00 - Apprentissage automatique

Abrégé

According to the present invention, the infiltration of moisture into a slot portion of a stator is blocked and the insulation reliability of a rotary electric machine is improved. This rotary electric machine, having a stator 10 and a rotor that can rotate about a rotary shaft, includes a cylindrical waterproof member 50 provided on the stator 10, which faces the rotor with a gap therebetween, so as to cover the entire inner circumferential surface of the stator. The cylindrical waterproof member 50 is formed as a single seamless body from a first stator core 11a to a second stator core 11b and molded to resins 71 at end sections (51a, 52) on both sides adjacent to coil ends to waterproof slots of the stator 10.

Classes IPC  ?

• H02K 5/10 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction avec des dispositions empêchant l'introduction de corps étrangers, p. ex. de l'eau ou des doigts
• H02K 1/18 - Moyens de montage ou de fixation des parties magnétiques fixes sur ou aux structures constituant le stator
• H02K 3/38 - Enroulements caractérisés par la configuration, la forme ou la réalisation de l'isolement autour des têtes de bobines, des connexions équipotentielles ou des connexions s'y raccordant

Abrégé

An equipment maintenance system 1 includes an asset knowledge database 41 in which failure information relating to an equipment failure, the cause of the failure, whether or not a site visit to the equipment by a maintenance person is required when the failure occurs, and the cost of dealing with the failure are managed in association with each other. The equipment maintenance system 1 includes a failure cause presentation unit 33 that calculates, for a failure cause requiring a site visit, among a plurality of failure causes estimated by a failure cause estimating unit 31, a ratio between a first cost for a case in which a maintenance person deals with the failure on the current site visit, and a second cost for a case in which the maintenance person makes another site visit to deal with the failure in subsequent occurrence. On the basis of the ratio calculated by the failure cause presentation unit 33, the equipment maintenance system 1 outputs failure causes that should be addressed preferentially, among the failure causes requiring a site visit.

Classes IPC  ?

• G06Q 10/20 - Administration de la réparation ou de la maintenance des produits
• G05B 23/02 - Test ou contrôle électrique
• G06F 11/22 - Détection ou localisation du matériel d'ordinateur défectueux en effectuant des tests pendant les opérations d'attente ou pendant les temps morts, p. ex. essais de mise en route

Abrégé

The present invention addresses the problem of evaluating the state of an industrial machine with high accuracy. This machine evaluation system is characterized by comprising an operation history accumulation unit that accumulates the history of the operation of an industrial machine, a maintenance history accumulation unit that accumulates the history of maintenance work for the industrial machine, and an evaluation unit that evaluates the state of the industrial machine on the basis of the history of the operation and the history of the maintenance work, wherein the evaluation unit outputs, as the result of the evaluation, an intended use after the recovery of the industrial machine.

Classes IPC  ?

• G01M 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
• G06Q 50/04 - Fabrication

Abrégé

This control device 10 for a hoisting machine comprises: a main circuit 31 to which a power supply 102 and an electric motor 1 are connected, an operation circuit 32 to which an operation input device 5 is connected, a power-on/off electromagnetic contactor 21 having a main contact 210 provided in the main circuit 31, and a coil 212 and a sub-contact 211 provided in the operation circuit 32; and an overwinding prevention device 22 which is connected to the operation circuit 32 and is configured to stop energization to the electric motor 1 when the load hook reaches an upper limit position or a lower limit position. When the ON-operation switch 50 is operated, the main contact 210 provided in the main circuit 31 and the sub-contact 211 provided in the operation circuit 32 are closed, and the operation circuit 32 forms a self-holding circuit. When the overwinding prevention device 22 is operated during driving of the electric motor 1, the self-holding circuit formed by the operation circuit 32 is released, the main contact 210 and the sub-contact 211 are opened, and energization to the electric motor 1 is stopped.

Classes IPC  ?

• B66D 3/20 - Palans à moteur à moteur d'entraînement, p. ex. le moteur électrique, tambour ou cylindre dans le même carter
• B66D 1/46 - Dispositifs de commande non automatiques électriques
• B66D 1/54 - Mécanismes de sécurité

Abrégé

The present invention improves the reliability of an amorphous transformer. An amorphous transformer comprising an insulation member having a flat part corresponding to the plane of a coil and folded parts disposed between an inner peripheral surface of the coil and an outer peripheral surface of an amorphous iron core, wherein the folded parts of the insulation member are structured such that the lengths at corner parts are prevented from being shorter than the other parts of the sides.

Classes IPC  ?

• H01F 27/32 - Isolation des bobines, des enroulements, ou de leurs éléments
• H01F 27/25 - Noyaux magnétiques fabriqués à partir de bandes ou de feuillards
• H01F 37/00 - Inductances fixes non couvertes par le groupe

Abrégé

Provided is a power conversion device (100) which is configured by arranging a plurality of power semiconductor modules close to each other, and in which thermal interferences between the power semiconductor modules during charging and discharging can be leveled. The power conversion device is characterized by comprising: a power conversion unit having a first semiconductor module (106a) and a fourth semiconductor module (106b) through which substantially the same amount of current passes during operation, and a second semiconductor module (106c) and a third semiconductor module (106d) through which substantially the same amount of current passes during operation; and a cooling body (115) on which the first semiconductor module, the second semiconductor module, the third semiconductor module, and the fourth semiconductor module are disposed. A third thermal interference between the second semiconductor module and the third semiconductor module is smaller than a first thermal interference between the first semiconductor module and the second semiconductor module and a second thermal interference between the third semiconductor module and the fourth semiconductor module.

Classes IPC  ?

• H02M 7/48 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande

Abrégé

Provided are an amorphous transformer having a low environmental impact at the time of manufacturing, and a method for manufacturing the amorphous transformer. In the amorphous transformer, iron loss in one portion of an amorphous iron core constituting the amorphous transformer is greater than in other peripheral portions, and the region in which the iron loss is greater has a narrower range than the other portions.

Classes IPC  ?

• H01F 27/25 - Noyaux magnétiques fabriqués à partir de bandes ou de feuillards
• H01F 41/02 - Appareils ou procédés spécialement adaptés à la fabrication ou à l'assemblage des aimants, des inductances ou des transformateursAppareils ou procédés spécialement adaptés à la fabrication des matériaux caractérisés par leurs propriétés magnétiques pour la fabrication de noyaux, bobines ou aimants

Abrégé

The present invention provides a safety work device in which the floating of chemicals and contaminants into a work space is suppressed while a front shutter is closed. This safety work device includes: a work space; and a vertically movable front shutter on the front face of the work space. A work opening is formed below the front shutter when the front shutter is moved upward. The safety work device has an exhaust port through which air is discharged from the work space, and an exhaust flow passage leading from the exhaust port. When the front shutter is closed, a housing-interior opening is formed at the upper portion of the front shutter.

Classes IPC  ?

• F24F 7/06 - Ventilation avec réseau de gaines à circulation d'air forcée, p. ex. par un ventilateur
• B01L 1/00 - EnceintesChambres
• F24F 13/28 - Agencement ou montage de filtres

Abrégé

The present invention provides a DC power distribution system and a DC switchboard which make it possible to flexibly establish a power distribution path in accordance with the configuration or state of equipment. In the present invention, DC wiring LNd forms DC loop wiring by making a round through at least two DC switchboards 1 among a plurality of DC switchboards 1. A first DC switchboard 1B, which is one of the plurality of DC switchboards 1, has a bidirectional DC/DC converter 11A and is configured to enable connection, via the bidirectional DC/DC converter 11A, of a DC power storage device 4 that stores DC power. A power distribution system control device 6 adjusts power flow in the DC wiring LNd by controlling the bidirectional DC/DC converter 11A.

Classes IPC  ?

• H02J 1/00 - Circuits pour réseaux principaux ou de distribution, à courant continu

Abrégé

Provided is a power conversion device (1) in which the breakage of components of an internal circuit such as an input circuit can be suppressed even in an abnormal state such as a ground fault. In the power conversion device (1), which takes AC voltage as an input and outputs DC voltage through voltage doubler rectification, an inrush current suppression unit (105) is disposed on the neutral line side of the AC current.

Classes IPC  ?

• H02M 7/48 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande

Abrégé

The stator coil of a rotary electric machine according to the present invention is constituted using concentric winding. The stator coil is constituted by inserting hairpin-shaped coil pieces 10, 11, 20, 21, 30, 31 of rectangular wires from one and the other sides and connecting the coil pieces. The length of a linear part of the coil pieces is set to half of the axial length of the stator core, and at both leg end parts, a protrusion and a recess are engaged with a protrusion shape or a recess shape. The coil pieces are constituted by the following three types: center coil pieces 10, 11 that make connection between slots in the circumferential direction in the vicinity of the center of the slot in the radial direction; inner coil pieces 20, 21 that make connection between the coil end parts in the circumferential direction at a position further inward in the radial direction than the radial position of the slot; and outer coil pieces 30, 31 that make connection in the circumferential direction at a position further outward in the radial direction. The lengths of the coil parts of the connected center coil pieces 10 and 11, coil pieces 20 and 31, and coil pieces 30 and 21 which are concentric are set to be identical so that the resistance values are uniform, and assembly workability is improved.

Classes IPC  ?

• H02K 3/04 - Enroulements caractérisés par la configuration, la forme ou le genre de construction du conducteur, p. ex. avec des conducteurs en barre
• H02K 3/12 - Enroulements caractérisés par la configuration, la forme ou le genre de construction du conducteur, p. ex. avec des conducteurs en barre disposés dans des encoches
• H02K 15/06 - Montage d'enroulements préfabriqués dans les machines

Abrégé

This communication method is executed by a data sharing device 1 comprising: a first environment 10 for receiving data from a data transmission source; a shared memory 31 for storing the data received by the first environment 10; and a second environment 20 which operates independently of the first environment 10 and checks the safety of the data stored in the shared memory 31 before transmitting the data to the outside. The first environment 10 stores the data with a dummy file name when storing the data in the shared memory 31, returns the stored data to the transmission source, and changes the dummy file name to the true file name when the content of the data is confirmed to have not been changed at the transmission source. The foregoing makes it possible to provide a communication method configured so that when generated data is transmitted to the data sharing device, even in a case where data is defective, such defective data can be detected. Also, it is possible to provide an inspection method capable of detecting malware by a simpler method.

Classes IPC  ?

• G06F 21/64 - Protection de l’intégrité des données, p. ex. par sommes de contrôle, certificats ou signatures
• G06F 21/56 - Détection ou gestion de programmes malveillants, p. ex. dispositions anti-virus
• G06F 21/74 - Protection de composants spécifiques internes ou périphériques, où la protection d'un composant mène à la protection de tout le calculateur pour assurer la sécurité du calcul ou du traitement de l’information opérant en mode dual ou compartimenté, c.-à-d. avec au moins un mode sécurisé

Abrégé

Provided is a technique capable of preventing the damage of heat exchangers for waste heat recovery. An air compressor 1 is provided with: heat exchangers 103, 104 for cooling that exchange heat between cooling water and compressed air; and a cooling liquid pipe 106 through which the cooling water circulates. A waste heat recovery machine 2 is provided with: heat exchangers 201, 202 for waste heat recovery that exchange heat between waste heat recovery water and the compressed air; a waste heat recovery liquid pipe 211 through which the waste heat recovery water circulates; branch pipes 110, 111 that connect the cooling liquid pipe 106 and the waste heat recovery liquid pipe 211; flow path switching three-way valves 203, 204 that open and close the branch pipes 110, 111; and a temperature controller 206 that controls the flow path switching three-way valves 203, 204. The temperature controller 206 controls the flow path switching three-way valves 203, 204 to open the branch pipes 110, 111 when the temperature of the waste heat recovery water exceeds a threshold.

Classes IPC  ?

• F04C 28/02 - Commande, surveillance ou dispositions de sécurité pour les pompes ou les installations de pompage spécialement adaptées pour les fluides compressibles spécialement adaptées pour plusieurs pompes connectées en série ou en parallèle
• F04C 29/04 - ChauffageRefroidissementIsolation thermique

Abrégé

The purpose of the present invention is to provide a rotating electrical machine making it possible to reduce noise produced by magnetomotive force of a spatial harmonic order that cannot be minimized by the selection of the winding pitch. This rotating electrical machine comprises: a stator including a stator core, a stator slot arranged in the circumferential direction of the stator core, and a stator winding arranged in the stator slot; and a rotor which includes a rotor core, a rotor slot arranged in the circumferential direction of the rotor core, and a rotor conductor arranged in the rotor slot, and which is arranged without skew relative to the stator. The opening width of the stator slot is established on the basis of the number of slots of the stator and the rotor, a spatial harmonic order of magnetomotive force of the stator and the rotor that is established by the number of slots, and a mode order of electromagnetic excitation force that is established by the spatial harmonic order, so that the mode order and magnetomotive force amplitude will be at minimum values in the same spatial harmonic order.

Classes IPC  ?

• H02K 17/16 - Moteurs asynchrones à induction avec des rotors à enroulement court-circuité à l'intérieur de la machine, p. ex. des rotors à cage
• H02K 1/16 - Noyaux statoriques à encoches pour enroulements
• H02K 1/26 - Noyaux rotoriques à encoches pour enroulements

Abrégé

Provided is a power system capable of easily coping with a change of a system configuration, and a power converter for use in the power system. The power system comprises: a DC device (1); a DC power supply bus 4 through which power is supplied to the DC device; a power converter (2) that can charge/discharge power to/from the DC power supply bus 4; a general control device that controls the DC device; and an Ethernet line 7 through which the DC device, the power converter, and the general control device are connected. The power converter: receives, through the Ethernet line 7, a communication telegraphic message containing DC device-related information that is information on the DC device; acquires the DC device-related information from the communication telegraphic message; and charges/discharges the DC power supply bus 4 on the basis of the acquired DC device-related information.

Classes IPC  ?

• H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries
• H02J 1/00 - Circuits pour réseaux principaux ou de distribution, à courant continu
• H02J 7/34 - Fonctionnement en parallèle, dans des réseaux, de batteries avec d'autres sources à courant continu, p. ex. batterie tampon

Abrégé

The present invention provides a technology capable of flexibly defining, on a management device, a distribution condition and/or a completion condition of a file to be distributed to a communication device under management. This management device is connected to at least one communication device so as to be capable of communicating data with the communication device via a communication network, and remotely updates firmware of the communication device under management, and includes: a collection data management table for managing information including setting information and operation information of the communication device and collected from the communication device; an update request management table for managing, as a remote update request representing a request for remotely updating firmware to the communication device, a combination of information on the communication device, information on a file to be distributed to the communication device, a distribution condition that is a condition for starting distribution of the file to the communication device, and a completion condition that is a condition for ending distribution of the file to the communication device; and an update determination processing unit that, when receiving from the communication device an update check notification representing a notification for checking update/non-update of the firmware of the communication device, determines start or end of distribution of the file to the communication device on the basis of the information managed by the collection data management table and the information managed by the update request management table, and notifies the communication device of the determination result. The setting information is static information relating to an application or communication operating in the communication device. The operation information is dynamically changing information relating to an operation state and a communication state of the communication device. The distribution condition and the completion condition managed by the update request management table can be defined by combining one or more pieces of information including at least the operation information managed by the collection data management table.

Classes IPC  ?

• G06F 8/65 - Mises à jour

Abrégé

OFFONECOECOECO).

Classes IPC  ?

• F04B 49/02 - Commande d'arrêt, de démarrage, de décharge ou de ralenti

Abrégé

Provided is a technology capable of adjusting supply and demand of electric power. A compressed air energy storage device 100 comprises: air compressors 6, 7 that generate compressed air; heat exchangers 24, 25 that exchange heat between the compressed air and a heat storage medium; a pressure accumulation tank 8 that stores the compressed air that has undergone heat exchange in the heat exchangers 24, 25; a heat storage tank 21 that stores the heat storage medium that has undergone heat exchange in the heat exchangers 24, 25; a heat exchanger 32 that generates low-pressure steam by heating water through heat exchange with the heat storage medium; a steam compressor 41 that generates high-temperature steam by compressing the low-pressure steam; generators 12, 13 that generate electric power; and expanders 10, 11 that drive the generators 12, 13 by means of the compressed air or the high-temperature steam. The compressed air energy storage device supplies one or more of the compressed air, the high-temperature steam, and the electric power.

Classes IPC  ?

• F02C 6/16 - Ensembles fonctionnels de turbines à gaz comportant des moyens pour emmagasiner l'énergie, p. ex. pour faire face à des pointes de charge pour emmagasiner de l'air comprimé
• F22B 1/02 - Méthodes de production de vapeur caractérisées par le genre de chauffage par exploitation de l'énergie thermique contenue dans une source chaude
• F22B 1/16 - Méthodes de production de vapeur caractérisées par le genre de chauffage par exploitation de l'énergie thermique contenue dans une source chaude la source chaude étant un liquide chaud ou une vapeur chaude, p. ex. un liquide résiduel, une vapeur résiduelle
• F22G 1/00 - Surchauffe de la vapeur caractérisée par la méthode de chauffage

Abrégé

According to the present invention, setting information relating to a marking performed by a marking device with respect to an object is acquired from the outside of a management device, information relating to an inspection area for inspection of the marking performed by an inspection device is acquired from the outside of the management device, association data in which the setting information is associated with the inspection area is generated, and the generated association data is registered in the management device.

Classes IPC  ?

• G06F 3/12 - Sortie numérique vers une unité d'impression

Abrégé

Provided is a synchronous motor control device that suppresses a rapid decrease in the output torque of a synchronous motor without output voltage saturation. The synchronous motor control device includes a speed control unit for generating a q-axis current command value in accordance with the difference between a speed command value for setting the rotation speed of a synchronous motor and a speed detection value indicating the speed of the synchronous motor. The synchronous motor control device includes: a q-axis current command limit processing unit for generating a q-axis current limit command value for limiting the q-axis current command value on the basis of a q-axis current limit value limiting the q-axis current applied to the synchronous motor; a d-axis current command generation unit for generating a d-axis current command value from the q-axis current limit command value and a magnetomotive force phase difference angle; a q-axis current control unit for generating a q-axis voltage command value on the basis of the q-axis current limit command value; a d-axis current control unit for generating a d-axis voltage command value on the basis of the d-axis current command value; and a three-phase conversion unit for converting a two-phase command voltage of the q-axis voltage command value and the d-axis voltage command value into a three-phase command value that is an input to an inverter circuit. The q-axis current command limit processing unit limits the q-axis current command value on the basis of the q-axis current limit value.

Classes IPC  ?

• H02P 21/12 - Commande basée sur le flux statorique impliquant l’utilisation de détecteurs de position ou de vitesse du rotor

Abrégé

A starting material liquid of a mold resin includes: a base agent liquid that mainly composed of an epoxy resin and a silica; a curing agent liquid that is mainly composed of an acid anhydride and the silica; and a reactive diluent liquid that is mainly composed of a radical monomer and a copolymerization agent.

Classes IPC  ?

• H01H 33/662 - Enveloppes ou écrans de protection
• C08K 3/36 - Silice
• C08L 9/00 - Compositions contenant des homopolymères ou des copolymères d'hydrocarbures à diènes conjugués
• C08L 63/00 - Compositions contenant des résines époxyCompositions contenant des dérivés des résines époxy
• H01L 23/29 - Encapsulations, p. ex. couches d’encapsulation, revêtements caractérisées par le matériau
• H01L 23/31 - Encapsulations, p. ex. couches d’encapsulation, revêtements caractérisées par leur disposition
• H05K 5/00 - Enveloppes, coffrets ou tiroirs pour appareils électriques

Abrégé

According to the present invention, the pressure response to each flow rate at a plurality of terminals is measured to construct a machine learning model for predicting fluctuations in terminal pressure, and thereby optimal air compressor control is realized. In this compressor control method for a pneumatic system having a plurality of terminals that consume compressed air, a control unit of a system 400: (a) measures supply side pressures by means of pressure gauges 305 to 307 on a discharge side from which compressed air is supplied; (b) uses pressure gauges 113, 123, ..., 243, flowmeters 112, 122, ..., 242, and valves 111, 121, ..., 241 provided in some of the terminal ends of pipes 11, 12, ..., 24, to acquire pressure values and flow rate values when the valves are opened or closed; and (c) uses supply pressure values from air compressors 2 to 4 and demand side pressure values and flow rates to train a terminal pressure prediction model for predicting the pressure at each of the terminals 11, 12, ..., 24. During actual operation of the pneumatic system, the control unit inputs the supply pressure values and terminal air flow rate values into the terminal pressure prediction model to calculate the optimum discharge pressures of the air compressors.

Classes IPC  ?

• F04B 49/08 - Régulation par la pression de refoulement
• F04B 49/06 - Commande utilisant l'électricité
• G05D 16/20 - Commande de la pression d'un fluide caractérisée par l'utilisation de moyens électriques

Abrégé

This diagnostic processing device is provided with a processor and a communication device. The processor generates, on the basis of data obtained via the communication device from a plurality of sensors included in an apparatus in a normal operating state thereof, a prediction model for predicting a first physical quantity measured by a first sensor among the plurality of sensors. The processor uses a predicted value of the first physical quantity predicted using the prediction model and a measured value of the first physical quantity measured by the first sensor to determine abnormality of information related to the first physical quantity. If it is determined that the information is abnormal, the processor calculates a contribution value for the degree of abnormality of the information with respect to each of the sensors other than the first sensor. The processor uses the contribution values to estimate an abnormal output value of a portion of the apparatus, and estimates an abnormal portion in the apparatus.

Classes IPC  ?

• G05B 23/02 - Test ou contrôle électrique

Abrégé

Provided is a management system that attaches identification data to a product produced through a plurality of steps and manages the product in a trackable manner. The management system comprises: a plurality of control devices that are disposed in one or more of each of the plurality of steps and perform control of the steps; and a tracking database that associates and holds identification data of the product, identification data of a member used for production of the product, and control data related to control of the steps. The plurality of control devices perform control of the steps and register control data regarding the control in the tracking database. The management system can flexibly provide various data related to product production.

Classes IPC  ?

• G05B 19/418 - Commande totale d'usine, c.-à-d. commande centralisée de plusieurs machines, p. ex. commande numérique directe ou distribuée [DNC], systèmes d'ateliers flexibles [FMS], systèmes de fabrication intégrés [IMS], productique [CIM]
• G06Q 50/04 - Fabrication

Abrégé

There is a problem in that the accuracy of a calculated loss and the accuracy of subsequent calculations of temperature and degree of degradation are low. A power conversion device includes: a junction-fin temperature calculator capable of calculating a junction-fin temperature; and a fin temperature sensor capable of detecting a fin temperature. A junction temperature is calculated from the sum of the junction-fin temperature and the fin temperature. A loss characteristic based on the junction temperature at that time is called from the calculated junction temperature, and a more accurate loss is calculated. The temperature is estimated from the calculated loss and a transient thermal characteristics table, and then the degree of degradation is calculated.

Classes IPC  ?

• H02M 7/48 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande

Abrégé

The present invention provides a technology by which the insertion of a lead into a through hole is facilitated and it is possible to suppress positional deviation of a component. Two leads 702 have a plate-shaped cross section and are disposed on an insertion-type component 701 so that the length direction of the cross section of each of the leads 702 is the same direction. A printed wiring board 100 includes: an oval through hole 402 configured so that the width-direction length is obtained by adding a prescribed clearance value to the width-direction length of the lead 702; and a circular through hole 402 configured so that the diametrical length thereof is obtained by adding a prescribed clearance value to the length-direction length of the lead 702.

Classes IPC  ?

• H05K 1/02 - Circuits imprimés Détails
• H05K 1/18 - Circuits imprimés associés structurellement à des composants électriques non imprimés
• H05K 3/34 - Connexions soudées

Abrégé

This DC insulation resistance monitoring device for a high-voltage power distribution system comprises: a neutral point switch 11 connected to a transformer 10 for a grounding-type instrument; an insulation capacitor 12 which is opened and closed by the neutral point switch 11; a DC power supply 13 which charges the insulation capacitor 12; a DC power supply switch 14 which opens and closes connection between the DC power supply 13 and the insulation capacitor 12; a voltage measurement unit 15 which measures the voltage of the insulation capacitor 12 in response to opening/closing of the DC power supply switch 14; and a control unit 17 which controls the opening/closing operations of the neutral point switch 11 and the DC power supply switch 14. The voltage measurement unit 15 performs resistive voltage division to divide the voltage of the insulation capacitor 12, inputs the voltage resulting from the resistive voltage division, and measures a voltage change in the insulation capacitor 12.

Classes IPC  ?

• G01R 31/52 - Test pour déceler la présence de courts-circuits, de fuites de courant ou de défauts à la terre

Abrégé

This compressor is provided with: a compressor body (1) that is housed in a housing (4); an electric motor (2) that drives the compressor body (1); an electromagnetic switch (6) that opens and closes an electric path that supplies current to the electric motor (2); a temperature sensor (9) provided in the housing (4); and a control device (7) that counts the opening/closing of the electromagnetic switch (6), stores the cumulative number of openings/closings, and controls the electromagnetic switch (6). The control device (7) corrects the counted number of openings/closings of the electromagnetic switch (6) according to the temperature detected by the temperature sensor (9), and outputs a signal to the outside when the cumulative number of openings/closings exceeds a threshold value.

Classes IPC  ?

• F04B 51/00 - Tests des "machines", pompes ou installations de pompage
• F04B 49/10 - Autres mesures de sécurité

Abrégé

The present invention makes it less likely for a refrigerant to enter a gap between a rotor and a stator in a rotating electrical machine for injecting a liquid refrigerant to an end face of the rotor. Cylindrical projections 36, 39 projecting outward in the axial direction are provided on the outer peripheral sides of end plates 35 arranged on both side end faces of a rotor core 31. Cooling oil 71, 72 supplied from oil supply holes 4c, 5c of end brackets 4, 5 of a rotating electrical machine 1 hits an end face of a rotor 30 as shown by arrows 71a, 72a of the rotor 30, flows to the outer peripheral side, moves from the projections 36, 39 to a position (+ Zrf,-Zrr) separated from the rotor core 31 in the axial direction as shown by arrows 71c, 72c, and is then guided to a stator core 11 side. Further, the rotating electrical machine 1 is formed such that a coordinate +Zsf of the minimum inner diameter position of a resin 24 is closer to a center position than a coordinate +Zrf, and a coordinate -Zsr of the minimum inner diameter position of a resin 26 is closer to the center position than a coordinate -Zrr.

Classes IPC  ?

• H02K 9/19 - Dispositions de refroidissement ou de ventilation pour machines avec enveloppe fermée et circuit fermé de refroidissement utilisant un agent de refroidissement liquide, p. ex. de l'huile

Abrégé

S2S2S2, a time for maintenance of the intercooler 104; and a display unit 123. The control device 119 displays, on the display unit 123, an operation time remaining until maintenance.

Classes IPC  ?

• F04B 49/10 - Autres mesures de sécurité

Abrégé

This screw compressor is provided with a liquid recovery mechanism (70) whereby a lubricating liquid supplied to a bearing (7) is recovered from a bearing chamber (52) to a housing chamber (45). The liquid recovery mechanism has a liquid supply groove (72) that opens on an inner peripheral surface (47) of the housing chamber at the position of a joint surface (41a) of a casing (4) and extends in the circumferential direction of the inner peripheral surface, an introduction path (73) that is formed at the position of the joint surface (41a) and is connected to one side end of the liquid supply groove on the rear side in the rotation direction of a screw rotor (3), and a recovery path (71) that connects the bearing chamber (52) and the introduction path. In a connection part (74) between the liquid supply groove and the introduction path, a surface including a tangent line (L1) of one side end part (72aP) on a bottom surface (72a) of the liquid supply groove is designated as a boundary surface with respect to the introduction path. In the connection part, an opening area (S1) of an opening (74a) that opens on the inner peripheral surface is smaller than an area (S2) of the boundary surface.

Classes IPC  ?

• F04C 29/02 - LubrificationSéparation du lubrifiant
• F04C 18/16 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement extérieur, c.-à-d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés d'un autre type qu'à axe interne avec des pistons rotatifs dentés à dents hélicoïdales, p. ex. du type ayant la forme d'un chevron, du type à vis

Abrégé

A discharge port (63) of a screw compressor (1) has: a main opening (64) that is defined on the basis of a tooth profile of a discharge-side end surface (21c) of a male rotor (2) and a tooth profile of a discharge-side end surface (31c) of a female rotor (3); and a groove (65) that is connected to an end of the main opening (64) on a reference line (L) side and a portion thereof close to a second axis (A2) and that extends from the main opening to the reference line side. The female rotor has discharge holes (35) in which first openings (36a) on one side open in the discharge-side end surface of the female rotor and in which second openings (37a) on the other side communicate with a bearing chamber (56). The first openings in the discharge holes are configured such that the positions thereof in the circumferential direction of the female rotor are arranged so as to correspond to tooth bottoms on the discharge-side end surface of the female rotor and periodically face the groove without always facing the main opening in the discharge port.

Classes IPC  ?

• F04C 18/16 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement extérieur, c.-à-d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés d'un autre type qu'à axe interne avec des pistons rotatifs dentés à dents hélicoïdales, p. ex. du type ayant la forme d'un chevron, du type à vis
• F04C 29/00 - Parties constitutives, détails ou accessoires de pompes ou d'installations de pompage spécialement adaptées pour les fluides compressibles non couverts dans les groupes

Abrégé

A power conversion device (1) comprises: a DC conversion unit (101); a smoothing capacitor (103); a DC voltage boosting unit (102); an AC conversion unit (104); an output control unit (110) that controls the outputs of the DC voltage boosting unit (102) and the AC conversion unit (104); and a frequency command unit (111). The output control unit (110) monitors the level of a DC voltage charged in an output-side capacitor (107) in accordance with a command from the frequency command unit (111). Output control with respect to an AC electric motor (300) is performed by a switching element (108) turning off the supply of the DC voltage output from the output-side capacitor (107) while the level of the DC voltage is greater than or equal to a predetermined voltage level, and turning on the supply of the DC voltage output from the output-side capacitor (107) at a timing at which the level of the DC voltage drops below the predetermined voltage level.

Classes IPC  ?

• H02M 7/48 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande
• H02M 3/155 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs

Abrégé

A power conversion device (100) comprises: an inverter unit (4) that converts a DC voltage into an AC voltage; a control unit (7) that controls a trial operation of the inverter unit (4) on the basis of a prescribed operation condition; and a damage amount processing unit (9) that calculates and accumulates the damage amount of the inverter unit (4) during the trial operation period of the inverter unit (4) by the control unit (7) and acquires the operation result of the inverter unit (4) on the basis of the accumulated damage amount.

Classes IPC  ?

• H02M 7/48 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande

Abrégé

This information processing device comprises: an output attribute acquisition means (311) that acquires an output attribute when an image digitalization means (10) for digitalizing a captured image outputs an image; an input attribute acquisition means (312) that acquires an input attribute of an analysis means (32) for receiving input of an image and analyzing the image; a conformability determination means (313) that compares the output attribute and the input attribute and determines conformability; and a selection means (315) that causes a user to select a combination of the image digitalization means (10) and the analysis means (32) when the output attribute and the input attribute are conformable to each other. Consequently, provided are an information processing device, an information processing method, and an information processing system in which an image digitalization means and an application for analyzing an image can be combined with each other even when individually created by different operators.

Classes IPC  ?

• H04N 7/18 - Systèmes de télévision en circuit fermé [CCTV], c.-à-d. systèmes dans lesquels le signal vidéo n'est pas diffusé
• G06T 7/00 - Analyse d'image
• H04N 5/92 - Transformation du signal de télévision pour l'enregistrement, p. ex. modulation, changement de fréquenceTransformation inverse pour le surjeu

Abrégé

A rotating electrical machine (1) comprises: a rotating shaft (10) that has a rotor (17) in the center part; a stator (16) that is arranged around the rotor in the circumferential direction; a pair of bearings (11), (12) that rotatably support both ends of the rotating shaft; a pair of brackets (13), (14) that respectively hold the pair of bearings; an outer frame (15) that holds the pair of brackets and the stator; and a cover (outer blade cover (18)) that is fixed to the outer frame or the brackets. The rotating shaft has a protruding portion (10a) that protrudes outward from the bracket on at least one side. The protruding portion of the rotating shaft is covered by the cover. The cover is integrally provided with a shaft stopper device (50) for temporarily fixing the rotating shaft so as not to be able to rotate.

Classes IPC  ?

• H02K 5/04 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction

Abrégé

Provided is an electric power control apparatus that avoids destabilization caused by a sudden change in electric power generated with renewable energy. This electric power control apparatus is capable of controlling a plurality of electric power conversion devices for supplying, to an electric power grid, electric power generated by using renewable energy, and comprises: electric power conversion devices that each perform first control to use a portion of the generated electric power for inertial supply, and second control to not use the generated electric power for inertial supply; a surplus inertia calculation unit that calculates a surplus of inertia to be supplied to the electric power grid; a control determination unit that determines the first control and the second control for each of the electric power conversion devices, on the basis of the surplus of inertia calculated by the surplus inertia calculation unit; and a control transmission unit that transmits the operation control determined by the control determination unit to each of the electric power conversion devices.

Classes IPC  ?

• H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs

Abrégé

Provided is a gas compressor capable of preventing supercooling by a heat recovery unit and a cooler, regardless of the cooling power of the heat recovery unit.　In the present invention, an air compressor comprises: a low-pressure stage compressor body 2 for compressing air; a low-pressure stage heat recovery unit 3 for heating water using heat from the compressed air discharged from the low-pressure stage compressor body 2; an intercooler 4 for further cooling the compressed air cooled by the low-pressure stage heat recovery unit 3; and a high-pressure stage compressor body 5 for further compressing the compressed air cooled by the intercooler 4. The air compressor further includes: a compressed air temperature sensor 25 for detecting the temperature of the compressed air on the downstream side of the intercooler 4 and on the upstream side of the high-pressure stage compressor body 5; and a control device 15 for variably controlling the cooling power of the intercooler 4 on the basis of a detected value from the compressed air temperature sensor 25.

Classes IPC  ?

• F04B 39/06 - RefroidissementChauffagePrévention du gel
• F04B 39/02 - Lubrification
• F04B 41/00 - Installations ou systèmes de pompage spécialement adaptés aux fluides compressibles
• F04B 49/10 - Autres mesures de sécurité

Abrégé

Provided is a technology capable of reducing management costs for setting information required for data transfer. This data transfer system is a computer system for transferring data acquired from an on-site device to another device on a network, and includes at least a communication device that is connected to the on-site device so as to be capable of data communication and that receives data acquired by the on-site device and a communication control server that receives the data from the communication device and transfers the data to the other device on the network. The communication device creates instructions indicating the transfer destination and the transfer order of the data and transmits the instruction to the communication control server. The communication control server transfers the data to the other device on the basis of the instructions received from the communication device. The other device includes at least one of a service server that performs predetermined data processing related to a service desired by a user on the data received from the communication control server and returns the data to the communication control server and a data server that stores the data received from the communication control server in a storage area.

Classes IPC  ?

• H04L 45/037 - Routes traversant obligatoirement les nœuds liés au service
• G06Q 50/04 - Fabrication
• H04L 67/563 - Redirection de flux de réseau de données

Abrégé

Provided is a screw compressor making it possible to increase intake under conditions where a rotor has a small total winding angle. The screw compressor is provided with: a plurality of male rotor-side working chambers 10A formed in a plurality of tooth spaces of a male rotor 1A; and a plurality of female rotor-side working chambers 10B formed in a plurality of tooth spaces of a female rotor 1B. The female rotor 1B includes, from among the plurality of female rotor-side working chambers 10B, a working chamber having a maximum volume. A rotational angle range of the female rotor is greater than the product of: a number obtained by subtracting the number of teeth of the male rotor 1A from the number of teeth of the female rotor 1B; and a rotational angle range of the female rotor 1B corresponding to a circumferential direction width of the tooth spaces of the female rotor 1B. An intake completion timing of the female rotor-side working chambers 10B has been configured to be later than a reference timing at which the volume of the female rotor-side working chambers 10B reaches a maximum, and before a propagation time of pressure waves elapses, said waves propagating inside the female rotor-side working chambers 10B from a discharge-side end surface 18B to an intake-side end surface 19B of teeth 3B of the female rotor 1B.

Classes IPC  ?

• F04C 18/16 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement extérieur, c.-à-d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés d'un autre type qu'à axe interne avec des pistons rotatifs dentés à dents hélicoïdales, p. ex. du type ayant la forme d'un chevron, du type à vis
• F04C 29/00 - Parties constitutives, détails ou accessoires de pompes ou d'installations de pompage spécialement adaptées pour les fluides compressibles non couverts dans les groupes

Abrégé

The present invention provides a gas compressor that uses a plurality of drive circuits to drive a single electric motor, and can continue operation when a drive circuit has failed. A gas compressor (1) according to the present invention comprises: an electric motor (13) that operates in accordance with an operation parameter and drives a compressor body (4) for generating a compressed gas; a plurality of drive circuits (12a, 12b) that supply a drive current to the electric motor (13) as output; and a compressor control device (7) that can detect an abnormality in the drive circuits (12a, 12b). When an abnormality is detected in a drive circuit (12b), and the total output that can be supplied to the electric motor (13) by a normal drive circuit (12a) in which no abnormality has occurred is greater than or equal to the total output supplied to the electric motor (13) by the drive circuits (12a, 12b) at a point in time immediately before the abnormality was detected in the drive circuit (12b), the compressor control device (7) updates the operation parameter to a parameter for emergency operation.

Classes IPC  ?

• H02P 27/06 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p. ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs

Abrégé

The present invention reduces power loss during autonomous operation of a power conversion device provided with a power storage device.　This power conversion device is provided with a power storage device. The power conversion device comprises: an operation determination unit that determines whether the power conversion device is in an autonomous operation state or not; a power calculation unit that calculates power stored or output by the power storage device and determines whether or not power is stored in the power storage device; an active power command value setting unit that receives an active power value and determines an active power command value from the received value and the active power calculated by the power calculation unit; and a main circuit that outputs power on the basis of the active power command value determined by the active power command value setting unit. When the operation determination unit determines that the power conversion device is in the autonomous operation state, the active power command value setting unit changes the active power command value to an active power command value that does not store power in the power storage device when the power calculation unit detects power stored in the power storage device.

Classes IPC  ?

• H02M 7/48 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande
• H02J 3/32 - Dispositions pour l'équilibrage de charge dans un réseau par emmagasinage d'énergie utilisant des batteries avec moyens de conversion
• H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs