Abstract

This insulated cable inspection support device performs testing on an insulated cable to measure characteristics of deterioration, and determines an insulated cable inspection period on the basis of the measured value obtained in the testing and the number of years of use of the insulated cable.

IPC Classes  ?

• H02G 1/06 - Methods or apparatus specially adapted for installing, maintaining, repairing, or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
• G01R 31/02 - Testing of electric apparatus, lines, or components for short-circuits, discontinuities, leakage, or incorrect line connection
• G01R 31/12 - Testing dielectric strength or breakdown voltage

Abstract

This device for estimating the remaining life of an insulated cable performs testing on the insulated cable to measure characteristics of deterioration, and estimates the remaining life of the insulated cable on the basis of the measured value obtained in the testing and the number of years of use of the insulated cable.

IPC Classes  ?

• G01R 31/12 - Testing dielectric strength or breakdown voltage

Abstract

The present invention provides a floating ring mechanical seal wherein the sealing surface of the floating ring appropriately contacts the sealing surface of a counterpart seal and exhibits excellent sealing capability even under conditions in which the pressure or temperature of a fluid to be sealed increases or decreases significantly. The present invention pertains to a floating ring mechanical seal wherein a floating ring (5) is compressed and held between a rotary ring (4) and a stationary ring (2), with the stationary ring (2) configured as an cylindrical body having an L-shaped cross section and comprising a thick annular main body part (21) one end of which contacts the floating ring (5), and a thin cylindrical retaining part (22) extending in the axial direction from the inner circumferential edge of the other end of the main body part, and with an O-ring (7a) interposed between a seal case (1) and the retaining part (22) at the inner circumferential part of the seal case, and fitted and retained so as to be capable of moving in the axial direction. In addition, the stationary ring (2) is formed of a metal material having a Young's modulus and/or a thermal expansion coefficient approximately the same as that of the material forming the floating ring (5).

IPC Classes  ?

• F16J 15/16 - Sealings between relatively-moving surfaces
• F04D 29/10 - Shaft sealings
• F04D 29/12 - Shaft sealings using sealing-rings
• F16J 15/34 - Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member

Abstract

Each wireless station (31~326), that is, data communication device, is provided with a frame generation unit which generates and transmits a meter data frame addressed to a gateway, and a frame forwarding unit which forwards the received meter data frame. The frame generation unit transmits a meter data frame to which has been added a rerouting attempt count, which is the allowed number of attempts at transmitting the meter data frame to the gateway that the meter data frame is addressed to from a wireless station neighboring the gateway. When the frame forwarding unit fails at forwarding the meter data frame to the neighboring gateway and the rerouting attempt count added to the meter data frame is at least one, the frame forwarding unit reduces the rerouting attempt count by one then forwards the meter data frame to another wireless station.

IPC Classes  ?

• H04W 84/22 - Self-organising networks, e.g. ad hoc networks or sensor networks with access to wired networks
• H04L 12/707 - Route fault prevention or recovery, e.g. rerouting, route redundancy, virtual router redundancy protocol [VRRP] or hot standby router protocol [HSRP] using path redundancy
• H04W 4/04 - in a dedicated environment, e.g. buildings or vehicles
• H04W 40/34 - Modification of an existing route

Abstract

The present invention efficiently uses wireless resources while suppressing traffic and increasing accommodation efficiency in a wireless parent station for a wireless sub-station. The present invention provides a communication system wherein a plurality of wireless sub-stations (2-1, 2-2, 2-3,...) wirelessly communicate directly or via another wireless sub-station with wireless parent stations (1-1, 1-2) and communicate via wires or the like from the wireless parent stations to a collection control device (3). The collection control device (3) stores in memory first through fourth threshold values (a, b, c, d) and makes efficient use of and controls traffic by performing functionality control in which in accordance with the number of wireless stations accommodated, the following stages are passed through: connection suppression notice; specific high frequency communications suspension notice; and accommodation rejection notice.

IPC Classes  ?

• H04W 28/02 - Traffic management, e.g. flow control or congestion control
• H04W 4/04 - in a dedicated environment, e.g. buildings or vehicles
• H04W 48/06 - Access restriction performed under specific conditions based on traffic conditions
• H04W 84/22 - Self-organising networks, e.g. ad hoc networks or sensor networks with access to wired networks

Abstract

Communication apparatuses (nodes), which constitute a wireless multi-hop network, each comprise: a reception unit that receives a sequence number, divisional times, into which a time range, which is allocated to the transmission of detected usage amount data, is divided, and a division number thereof; a transmission offset calculation unit that calculates the remainder resulting from a division of the sequence number, which is received by the reception unit, by the division number and that calculates a transmission offset time on the basis of the remainder and a transmission interval; and a transmission unit that transmits the usage amount data on the basis of the transmission offset time calculated by the transmission offset calculation unit.

IPC Classes  ?

• H04Q 9/00 - Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
• G08C 15/00 - Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path
• G08C 17/00 - Arrangements for transmitting signals characterised by the use of a wireless electrical link

Abstract

An ad hoc network system is configured from a plurality of nodes with which communication among specific nodes is perform. Each node is provided with a calculation unit and a selection unit. The calculation unit calculates a value expressing the accumulated number of nodes communicating via the local node from an upstream side, i.e. the side which is closer to a specific node than the local node. The selection unit selects, on the basis of the accumulated value of the communicating nodes calculated by the calculation unit, a node that will become a connection destination from among the nodes located upstream.

IPC Classes  ?

• H04W 40/02 - Communication route or path selection, e.g. power-based or shortest path routing
• H04W 84/22 - Self-organising networks, e.g. ad hoc networks or sensor networks with access to wired networks

Abstract

In a communication-device searching method for searching for communication devices which configure an ad hoc network with which communication over a plurality of channels is possible, a search-source mobile terminal (1), which searches for the communication devices, transmits, over a plurality of channels, a search request having a search-destination communication device as the destination address, without waiting for a response to the search request, if a communication device (21) proximate to the search-source mobile terminal (1) receives, from the search destination, a response to the search request transmitted by the transmission process, the communication device (21) holds the received response, and the search-source mobile terminal (1) sends an inquiry to the proximate communication device (21) over a plurality of channels to inquire whether the response to the transmitted search request was received from the search destination. As a result, search time associated with communication devices at other destinations in a reactive ad hoc network capable of communicating over a plurality of channels can be reduced.

IPC Classes  ?

• H04W 40/28 - Connectivity information management, e.g. connectivity discovery or connectivity update for reactive routing
• H04W 84/18 - Self-organising networks, e.g. ad hoc networks or sensor networks

Abstract

Provided are nodes which configure an ad hoc network, and in which the local time for each node is set on the basis of time information propagated in sequence from a time synchronization source. Each node is provided with a time difference measurement unit, and a time setting unit. The time difference measurement unit measures a time difference, i.e. the difference between a first time based on the time information received most recently and a second time based on time information received immediately before the most recent time information. When the time difference exceeds a permissible error range smaller than a permissible range in which communication is possible, the time setting unit multiplies the time difference by a prescribed rate to calculate an adjustment time difference. If the calculated adjustment time difference is within the permissible range in which communication is possible, the time setting unit sets, as the local time for the node, a time obtained by adding the adjustment time difference to the second time. If the calculated adjustment time difference exceeds the permissible range in which communication is possible, the time setting unit sets, as the local time for the node, a time obtained by adding, to the second time, a time difference corresponding to the permissible range in which communication is possible, instead of the adjustment time difference.

IPC Classes  ?

• H04L 7/00 - Arrangements for synchronising receiver with transmitter
• G04G 5/00 - Setting, i.e. correcting or changing, the time-indication
• H04W 56/00 - Synchronisation arrangements
• H04W 84/18 - Self-organising networks, e.g. ad hoc networks or sensor networks

Abstract

Provided is an optical current transformer which inhibits the mechanical stress applied to the glass fiber wire of an optical sensor fiber and which has little current measurement errors. An optical sensor fiber (10) of which the glass fiber wire (10A) is covered with a protective covering material (10B) is arranged on the periphery of a conductive body (1). The optical sensor fiber (10) is provided with a polarizer/analyzer part (11) on one end. Meanwhile, on the other end of the optical sensor fiber (10), a ferrule (15) is adhered to the end of the glass fiber wire (10A), from which the protective covering material (10B) is removed, and a reflection member (12) is disposed on the end of the glass fiber wire (10A) to which the ferrule is adhered. A thermal stress absorption part (20) for making the end of the glass fiber wire (10A) a free end capable of moving in the optical axis direction is disposed on the other end of the optical sensor fiber (10). The thermal stress absorption part (20) is configured from: a protective cover (21) formed by closing the reflection member (12) side and for surrounding the end of the optical sensor fiber (10); and an adhesive part (22) for adhering the protective cover (21) to the outer circumferential surface of the protective covering material (10B).

IPC Classes  ?

• G01R 15/24 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using light-modulating devices
• G02B 6/02 - Optical fibres with cladding

Abstract

A condensing device (71) is provided with: a compressor (10) having a compressing section (20) for compressing operating fluid; a condenser (13) for condensing the operating fluid compressed by the compressing section (20); and a spray mechanism (81) having a nozzle (82) which, in order to cool the operating fluid flowing through the fluid path (91) between the outlet opening (CS2) of the compressing section (20) and the inlet opening (13a) of the condenser (13), sprays cooling fluid into the fluid path (91).

IPC Classes  ?

• F25B 1/00 - Compression machines, plants or systems with non-reversible cycle
• F28B 1/02 - Condensers in which the steam or vapour is separated from the cooling medium by walls, e.g. surface condenser using water or other liquid as the cooling medium
• F28B 9/02 - Auxiliary systems, arrangements, or devices for feeding steam or vapour to condensers
• F28B 9/04 - Auxiliary systems, arrangements, or devices for feeding, collecting, and storing cooling water or other cooling liquid

Abstract

Disclosed is a method for controlling the performance of a steam condenser, wherein a KA value representing the heat-transfer performance of a steam condenser (40) is acquired from the heat balance in a power generation plant (10), so that the performance of the steam condenser is evaluated using the KA value.

IPC Classes  ?

• F28B 11/00 - Controlling arrangements with features specially adapted for condensers

Abstract

Disclosed is an optical fiber current sensor which comprises: a sensor fiber; a polarization separating element which separates light emitted from the sensor fiber into two polarized components in which planes of polarization are perpendicular to each other; and a signal processing unit which converts the two separated polarized components into a first signal and a second signal by photoelectric conversion and computes the Faraday rotation angle by substitution of a ratio (S1) between a direct current component and an alternating current component of the first signal and a ratio (S2) between a direct current component and an alternating current component of the second signal into a computing formula. The computing formula is a formula for solving the Faraday rotation angle by equations of the ratio (S1) and the ratio (S2) expressed as functions of the Faraday ration angle and temperature as simultaneous equations having unknown quantities of the Faraday ration angle and temperature.

IPC Classes  ?

• G01R 15/24 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using light-modulating devices
• G01R 19/00 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof

Abstract

A nickel-based alloy and welding processes and consumables that use the alloy as a weld filler metal to fabricate, weld overlay, and repair components, including components of nuclear power plant reactors that contact the hot coolant water of the reactor. The nickel-based alloy consists of, by weight, 26 to about 30% chromium, 2 to about 4% iron, 2 to about 4% manganese, 2 to about 3% niobium, 1 to about 3% molybdenum, not more than 0.6% titanium, not more than 0.03% carbon, not more than 0.05% nitrogen, not more than 0.6% aluminum, not more than 0.5% silicon, not more than 0.01%) copper, not more than 0.02%> phosphorus, not more than 0.01% sulfur, with the balance nickel and incidental impurities.

IPC Classes  ?

• B23K 35/30 - Selection of soldering or welding materials proper with the principal constituent melting at less than 1550°C
• C22C 19/05 - Alloys based on nickel or cobalt based on nickel with chromium

Abstract

Disclosed is a public power source system whereby power can be conveniently and safely used in a public location. A socket (11) is installed beforehand in a predetermined public location to which power is supplied from a distribution line (13) and communications terminals (32) for requesting power supply to the socket (11) and a center server (31) are connected via the internet (33). When users make a search request from a communications terminal (32) via the internet (33) to the center server (31) for the installation location of the socket (11), the center server (31) sends the installation location of the socket (11) to the communications terminal (32) and when a request is made for power supply to the socket (11), the center server (31) outputs a current supply command via a communications network (the internet (29) or a telephone network (30)) to a current control unit (14) and the current control unit (14) enables supply of current to the socket (11).

IPC Classes  ?

• H02J 13/00 - Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the networkCircuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
• H02J 3/00 - Circuit arrangements for ac mains or ac distribution networks

Abstract

Disclosed is a public power source system whereby power can be used in a public location conveniently, safely, and without erroneous operation. A socket (11) is installed beforehand in a predetermined public location to which power is supplied from a distribution line (13) and communications terminals (32) for requesting power supply to the socket (11) and a center server (31) are connected via the internet (33). When a request is made for power supply to the socket (11), the center server (31) outputs a current supply command via a communications network (the internet (24) or a telephone network (25)) to a current control unit (14) and the current control unit (14) enables supply of current to the socket (11) once a current supply command and information generated using a remote control prevention device installed near the socket that power can be supplied to the socket is received.

IPC Classes  ?

• H02J 13/00 - Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the networkCircuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
• H02J 3/00 - Circuit arrangements for ac mains or ac distribution networks

Abstract

Disclosed is a public power source system whereby power can be safely used in a public location. A socket (11) is installed beforehand in a predetermined public location to which power is supplied from a distribution line (13) and communications terminals (32) for requesting power supply to the socket (11) and a center server (31) are connected via the internet (33). When users make a request from a communications terminal (32) via the internet (33) to the center server (31) for power supply to the socket (11), the center server (31) outputs a current supply command via a communications network (the internet (29) or a telephone network (30)) to a current control unit (14) and the current control unit (14) enables supply of current to the socket (11) when a current supply command is received.

IPC Classes  ?

• H02J 13/00 - Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the networkCircuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
• H02J 3/00 - Circuit arrangements for ac mains or ac distribution networks

Abstract

Provided is a freezing machine which maintains supply of a lubricant to a compressor, and which is also eco-friendly and has a simple structure. The freezing machine comprises a cooling water line (14), a lubricating water supply line (32), and a backup means (60). The cooling water line (14) includes a cooling water pump (18), and water flows in the cooling water line (14) to cool a refrigerant in a condenser (6). A portion of the cooling water line (14) located at the downstream side of the cooling water pump (18) is connected to a compressor (4) through the lubricating water supply line (32) so that the water flowing in the cooling water line (14) is supplied to the compressor (4) as a lubricant. When the cooling water pump (18) is not operated, water is supplied to the lubricating water supply line (32) from the backup means (60) as a substitute for the supply of water from the cooling water line (14).

IPC Classes  ?

• F04B 39/02 - Lubrication
• F04C 29/02 - LubricationLubricant separation
• F25B 1/00 - Compression machines, plants or systems with non-reversible cycle

Abstract

An axial flow compressor (10) comprises: a rotor (31) having rotor blades (34); a first pressing member (41) that is connected to one end surface of the rotor (31); a second pressing member (42) that is connected to the other end surface of the rotor (31); a rotor shaft (46) that passes through a first pressing member (41), the rotor (31) and second pressing member (42); and a nut (43) that fixes the first pressing member (41) and second (42) pressing member (42) with the rotor (31) held in between the first pressing member (41) and second pressing member (42). The rotor shaft (46) is made from a material having a linear expansion coefficient lower than the material used to at least partially constitute the rotor (31). The material used to at least partially constitute the rotor (31) may be aluminum or an aluminum alloy.

IPC Classes  ?

• F04D 29/34 - Blade mountings
• F04D 29/053 - Shafts

Abstract

An axial flow compressor (10) comprises: an electric motor (22) having a rotating shaft (22a); a drive shaft (40) that is connected to the rotating shaft (22a) of the electric motor (22) without passing through a step-up gear; and a rotor (31) that rotates together with this drive shaft (40). The axial flow compressor (10) is also provided with a compressor unit (20) that compresses a working fluid by driving the drive shaft (40), and a deceleration portion (24) having a space for reducing the flow rate of the working fluid discharged from the discharge port of the compressor unit (20). The rotating shaft (22a) of the electric motor (22) is connected to the end on the discharge port side of the drive shaft (40), and the deceleration portion (24) is positioned so as to surround the electric motor (22).

IPC Classes  ?

• F04D 29/54 - Fluid-guiding means, e.g. diffusers
• F04D 29/053 - Shafts
• F04D 29/66 - Combating cavitation, whirls, noise, vibration, or the likeBalancing

Abstract

Charging that conforms to the specifications of both a charger and a battery to be charged can be more smoothly started. Before starting to charge an in-vehicle battery (203), the control unit (205) of an electric vehicle (200) and the control unit (106) of a charger (100) exchange battery information describing a battery performance and charger information describing a charger performance via communication lines (2012, 1012) and determine a charging condition that satisfies the specifications of both the in-vehicle battery (203) and the charger (100). The control unit (205) of the electric vehicle (200) supplies a charging current specification value that satisfies this charging condition via the communication lines (2012, 1012) to the control unit (106) of the charger (100). The control unit (106) of the charger (100) determines, from this charging condition, the supply and stop timings of the charging power corresponding to the charging current specification value supplied from the electric vehicle (200).

IPC Classes  ?

• H02J 7/04 - Regulation of the charging current or voltage
• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

Abstract

Provided is a technique capable of more reliably starting and completing a charging control sequence even when a communication error occurs due to noise and capable of reliably opening a relay except for during charging. In addition to charging lines (1011, 2011) used for supplying charging power from a charger (100) to an electric vehicle (200) and communication lines (1012, 2012) used for exchanging a charging current specification value between the charger (100) and the electric vehicle (200), provided are driving power supply lines (1014, 2014) used for supplying driving power from a control-system power supply (107) to a relay (207) disposed between the charging line (2011) and an in-vehicle battery (203). By controlling the conduction patterns of the driving power supply line (2014), not only the relay (207) is opened or closed, but also the starting and completion signals of a charging control sequence are exchanged between the charger (100) and the electric vehicle (200).

IPC Classes  ?

• H02J 7/04 - Regulation of the charging current or voltage
• B60L 1/00 - Supplying electric power to auxiliary equipment of electrically-propelled vehicles
• B60L 11/18 - using power supplied from primary cells, secondary cells, or fuel cells
• H01M 10/44 - Methods for charging or discharging
• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• H02J 7/02 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from AC mains by converters

Abstract

Disclosed is a slag monitoring device (100) for a coal gasifier, that is equipped with a slag hole camera (11) that observes a slag hole (3) out of which molten slag flows, a water surface camera (12) that observes the condition of the slag flowing out of the slag hole (3) as the slag falls upon the surface (5H) of cooling water (5), a falling sound sensor (13) that observes the sound of the slag falling upon the water surface (5H), and a processing device (20) that assesses the deposit locations of solidified slag on the basis of the area of the opening of the slag hole (3) observed by the slag hole camera (11) and the slag drop lines and drop locations observed by the water surface camera.

IPC Classes  ?

• F27D 3/14 - Charging or discharging liquid or molten material
• C10J 3/46 - Gasification of granular or pulverulent fuels in suspension
• F23J 1/00 - Removing ash, clinker, or slag from combustion chambers
• F23J 1/08 - Liquid slag removal
• F27D 21/00 - Arrangement of monitoring devicesArrangement of safety devices
• F27D 21/02 - Observation or illuminating devices

Abstract

A connector (13) connects a charger (17) to a vehicle-mounted storage battery (14).  The charger (17) converts AC power (15) into DC to charge the vehicle-mounted storage battery (14) of an electric vehicle (12) in the state in which the charger (17) and the vehicle-mounted storage battery (14) are connected by the connector (13).  A diode (23) is connected between the charger (17) and the connector (13) so that the power distribution from the charger (17) to the vehicle-mounted storage battery (14) is permitted and the power distribution from the vehicle-mounted storage battery (14) to the charger (17) is interrupted.  A contactor (24) connected in parallel to the diode is closed during the power distribution from the charger (17) to the vehicle-mounted storage battery (14) and is opened when no power distribution from the charger (17) to the vehicle-mounted storage battery (14) takes place.  As a result, the protection operation of when charging the vehicle-mounted storage battery of an electric vehicle can be ensured and a device configuration can be simplified without reducing charging efficiency.

IPC Classes  ?

• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• B60L 11/18 - using power supplied from primary cells, secondary cells, or fuel cells

Abstract

In order to enable an insulation test of charging cables of a quick charger for an electric vehicle in which a ground fault detection circuit is formed between the charging cables without using an ammeter capable of wide-range measurement, the voltage reference signal of a smoothing capacitor (C) when the insulation of charging cables (13a, 13b) is normal is stored in advance in a voltage reference signal storage unit (28), the voltage of the smoothing capacitor (C) after the smoothing capacitor (C) is charged by applying voltage to the charging cables (13a, 13b) is measured by a voltmeter (23), and a comparison/determination unit (27) compares the voltage of the smoothing capacitor (C) measured by the voltmeter (23) and the voltage reference signal stored in the voltage reference signal storage unit (28) and determines whether or not the insulation of the charging cables (13a, 13b) is normal.

IPC Classes  ?

• G01R 31/02 - Testing of electric apparatus, lines, or components for short-circuits, discontinuities, leakage, or incorrect line connection
• B60L 11/18 - using power supplied from primary cells, secondary cells, or fuel cells

Abstract

A connector (13) connects a charger (17) to a vehicle-mounted storage battery (14), and the charger (17) converts AC power (15) into DC to charge the vehicle-mounted storage battery (14) of an electric vehicle (12). Furthermore, a parallel circuit of resistance (28) and a resistance bypass contactor (29) is connected in series to a smoothing capacitor (25) provided in the output section of the charger (17). A DC circuit breaker (18) connected between the charger (17) and the connector (13) is closed at the time of starting the charge from the charger (17) to the vehicle-mounted storage battery (14) and is opened at the time of ending the charge or in case of emergency. Furthermore, the resistance bypass contactor (29) is closed during the power distribution from the charger (17) to the vehicle-mounted storage battery (14) and is opened at the time of ending the charge or in case of emergency. As a result, damage to a smoothing capacitor of a charger can be prevented without reducing the charging efficiency of when charging a vehicle-mounted storage battery of an electric vehicle.

IPC Classes  ?

• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• B60L 11/18 - using power supplied from primary cells, secondary cells, or fuel cells
• H02H 9/02 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current

Abstract

A test container provided with a generated gas mixing section (10c) to which and from which a sweep gas is supplied and discharged, and also with a containing section (40b, 50b) which is disposed adjacent to the generated gas mixing section, has at least one small hole (40a, 50a) for discharging, to the generated gas mixing section, gas which is generated during a test from a body (A, B) being tested, and contains and encapsulates the body except the small hole. The test container can prevent the body being tested from excessively drying.

IPC Classes  ?

• G01N 17/00 - Investigating resistance of materials to the weather, to corrosion or to light
• G21C 23/00 - Adaptations of reactors to facilitate experimentation or irradiation

Abstract

An electric vehicle is prevented from miss-starting during charging and before work completion (before a retractable cap attached to a vehicle-side connector is closed) after the end of the charging. An electric vehicle (1) comprises a retractable sensor (13) and an ignition control unit (15). The retractable sensor (13) starts the transmission of a detection signal to the ignition control unit (15) when detecting the opening state of an outer cap (113) attached to a vehicle-side connector (11). The ignition control unit (15) disables the reception of the ignition operation by the user while receiving the detection signal from the retractable sensor (13). That is to say, the ignition control unit (15) turns the ignition off regardless of the presence/absence of the ignition operation.

IPC Classes  ?

• B60R 16/03 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided forArrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric for supply of electrical power to vehicle subsystems
• B60L 11/18 - using power supplied from primary cells, secondary cells, or fuel cells
• B60R 16/04 - Arrangement of batteries
• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

Abstract

A charger that promptly detects both Ground-faults at the charger side and electric leakages at the vehicle side, and conducts cut-offs more securely. The charger has a communication ground wire (110), which connects the negative electrode of a control system power supply (208) to the bodywork (203), grounded to the earth (400), for communication with a vehicle being charged. A ground-fault detection device (102) has; a serial circuit (1021) of resistors having the same resistance value, which is inserted between the charging wires 103A and 103B; a grounding wire (1023) that connects the point between the resistors 1021A and 1021B to the earth (400); a current detector (1022) that successively outputs the DC current value of the grounding wire (1023); and a controller (1024) that detects ground-faults at the charger side and electric leakages at the vehicle side, from the output of the current detector (1022). When a battery monitoring unit (209) of the vehicle being charged detects any abnormality in a battery (202), a control device (204) will notify the charger. A control device (104) of the charger will make an earth leakage breaker (105) execute cut-offs, when the controller (1024) detects ground-faults at the charger side or electric leakages at the vehicle side, or when the vehicle notifies the control unit (204) of battery-errors.

IPC Classes  ?

• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposesMonitoring operating variables, e.g. speed, deceleration or energy consumption
• B60L 11/18 - using power supplied from primary cells, secondary cells, or fuel cells
• H01M 10/44 - Methods for charging or discharging
• H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
• H02H 3/16 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to fault current to earth, frame or mass

Abstract

Provided is a technology which can be applied to an electric vehicle without any additional cost so that the closing/fixing of a relay can be detected, and the relay can be reliably opened, except for the period in which a battery is charged. Relays (205A, 205B) are operated by electrical power for control which is supplied from a charger (100) via a vehicle-side connector (201). An electric vehicle (200) closes the relays (205A, 205B) before a vehicle-mounted battery (203) is charged, and opens the relays (205A, 205B) after the vehicle-mounted battery (203) is charged. The charger (100) begins supplying electric power for control via a charger-side connector (101) before the vehicle-mounted battery (203) is charged, and maintains the supply of the electric power for control after the supply of electric power for charge is stopped by the completion of charging of the vehicle-mounted battery (203). Further, the output voltage of the electric power for charge is measured and notified to the electric vehicle (200). The electric vehicle (200) detects the closing/fixing of the relays (205A, 205B) on the basis of the measured value.

IPC Classes  ?

• H01H 47/00 - Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
• B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposesMonitoring operating variables, e.g. speed, deceleration or energy consumption
• B60L 11/18 - using power supplied from primary cells, secondary cells, or fuel cells
• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

Abstract

Provided is an electric vehicle charger capable of quickly detecting a ground fault and having a higher reliability. A ground fault detection device (102) of the electric vehicle charger (100) has a series circuit (1021) of two resistors (1021A, 1021B) having the same resistance values and connected to positive electrode-side and negative electrode-side charging lines (103A, 103B), a ground wire (1023) for connecting a ground connection point (1021C) of the wire connecting between the resistors (1021A, 1021B) to the earth (400), a current detector (1022) for sequentially outputting the measured values of DC current flowing through the ground wire (1023), and a controller (1024) for receiving the measured values obtained by the current detector (1022). While an in-vehicle battery (202) of an electric vehicle (200) is being rapidly charged, the current detector (1022) sequentially measures the DC current flowing through the ground wire (1023) and the controller (1024) compares the measured current values sequentially output by the current detector (1022) with a threshold value, thereby detecting a ground fault.

IPC Classes  ?

• H02H 3/16 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to fault current to earth, frame or mass
• B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposesMonitoring operating variables, e.g. speed, deceleration or energy consumption
• B60L 11/18 - using power supplied from primary cells, secondary cells, or fuel cells
• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

Abstract

Provided is an electric vehicle charger capable of, while rapidly charging to an electric vehicle, quickly detecting both the occurrence of a ground fault in an electric vehicle charger and the occurrence of leakage in the electric vehicle. In order to allow data communication with an electric vehicle (200) during charging, a communication earth wire (110) for connecting the negative electrode of a control system power supply (208) of the electric vehicle charger to a vehicle body earth (203) is grounded to the earth (400) via a ground wire (109). A ground fault detection device (102) of the electric vehicle charger (100) has a series circuit (1021) of resistors (1021A, 1021B) having the same resistance values and connected to positive electrode-side and negative electrode-side charging lines (103A, 103B), a ground wire (1023) for connecting a point between the resistors (1021A, 1021B) to the earth (400), a current detector (1022) for sequentially outputting the measured values of DC current flowing through the ground wire (1023), and a controller (1024) for detecting the occurrence of a ground fault in the electric vehicle charger (100) and the occurrence of leakage in the electric vehicle by comparing the measured current values output by the current detector (1022) with a threshold value.

IPC Classes  ?

• H02H 3/16 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to fault current to earth, frame or mass
• B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposesMonitoring operating variables, e.g. speed, deceleration or energy consumption
• B60L 11/18 - using power supplied from primary cells, secondary cells, or fuel cells
• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

Abstract

A connector (13) connects a charger (17) to an on-vehicle accumulator (14).  When the charger (17) is connected to the on-vehicle accumulator (14) by the connector (13), the charger (17) converts an AC power from an AC power source (15) into a DC power for charging the on-vehicle accumulator (14) of an electric vehicle (12).  A diode (23) is connected between the charger (17) and the connector (13) so as to make an electric communication from the charger (17) to the on-vehicle accumulator (14) and cut off an electrical communication from the on-vehicle accumulator (14) to the charger (17).  This assures protection of the electric vehicle when charging the on-vehicle accumulator and simplifies the device configuration.

IPC Classes  ?

• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• B60L 11/18 - using power supplied from primary cells, secondary cells, or fuel cells
• H01M 10/44 - Methods for charging or discharging
• H02J 1/10 - Parallel operation of dc sources

Abstract

Provided is a ground flare (10) capable of reducing low frequency vibration of a chimney (20) or ground flare tower below a threshold level thereby preventing resonance of surrounding structures. In a ground flare where flammable waste gas is burned by burners (11) disposed under the chimney (20) and the lower portion of the chimney (20) and the burners (11) are surrounded by a wind shield (40), low frequency noise level of the ground flare tower comprising the chimney (20) and the windshield (40) has been reduced by at least one of changing the natural frequency of the tower or increasing the number of the towers or implementing a device for absorbing low frequency vibration into the tower.

IPC Classes  ?

• F23G 7/08 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of specific waste or low grade fuels, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases using flares, e.g. in stacks

Abstract

By covering the inner circumferential surface of an outer cylinder with a vapor film, thermal conductivity is reduced and the phenomenon of sudden temperature increases in the cylinder wall of the outer cylinder can be prevented, thereby preventing heat damage to the outer cylinder. Additionally, burner burnout, caused by insufficient cooling resulting from irregularities in cooling efficiency at the burner tip, is also prevented. A tip, which is positioned inside a two-stage entrained-flow bed coal gasification furnace, has a double-walled cylindrical structure with an outer cylinder and an inner cylinder, and is configured so that cooling water to cool the tip is supplied via the inside of the inner cylinder and, after cooling the tip, is returned to the base end via the space formed between the outer cylinder and the inner cylinder, and is additionally configured so that the flow path surface area of the space formed between the outer cylinder and the inner cylinder is less than the flow path surface area formed inside the inner cylinder, thus configured so that a swirling flow along guides formed on the outer circumferential surface of the inner cylinder, and a roughly linear flow in the lengthwise direction of the outer cylinder and the inner cylinder, are imparted to the cooling water that is returning to the base end via the space formed between the outer cylinder and the inner cylinder.

IPC Classes  ?

• F23D 14/78 - Cooling burner parts
• F23D 1/00 - Burners for combustion of pulverulent fuel
• F23D 99/00 - Subject matter not provided for in other groups of this subclass
• F23J 1/00 - Removing ash, clinker, or slag from combustion chambers
• F27D 7/02 - Supplying steam, vapour, gases or liquids
• F27D 9/00 - Cooling of furnaces or of charges therein
• F27D 25/00 - Devices for removing incrustations

Abstract

Provided are a compressor and a freezer of simple configurations which can easily dispose a lubricant without giving a damage to the natural environment. The compressor is used in a freezer having an evaporator and a condenser.  A coolant gas evaporated in the evaporator is compressed by the compressor and supplied to the condenser.  The compressor includes a motor, a case containing a compression chamber, a rotor having a rotation shaft which is driven to rotate by the drive force from the motor so as to compress the vapor as the coolant gas in the compression chamber, a bearing for supporting the rotation shaft of the rotor in the case, and a lubricant water supply unit which supplies water as the lubricant to the bearing.

IPC Classes  ?

• F04D 29/063 - Lubrication specially adapted for elastic fluid pumps
• F25B 1/00 - Compression machines, plants or systems with non-reversible cycle

Abstract

The fiber optic current sensor is provided with a polarization splitting element (13) that splits output light from a sensor fiber (11) into two polarized components with planes of polarization that mutually intersect orthogonally, a depolarizing element (17) that respectively depolarizes the two polarized components split by the polarization splitting element (13), a light-receiving element (151) that converts the two light beams depolarized by the depolarizing element (17) to a first signal (S1) and a second signal (S2) respectively by photoelectric conversion, and a signal processing unit (15) that determines the magnitude of Faraday rotation based on the first signal (S1) and second signal (S2) and calculates the value of the measured current.

IPC Classes  ?

• G01R 15/24 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using light-modulating devices
• G01R 31/08 - Locating faults in cables, transmission lines, or networks

Goods & Services

(1) Automobiles and their parts and fittings.

Abstract

A process for producing a steel material is provided which includes subjecting a highly strengthened steel material (W) to a heat treatment to thereby cause part of the steel material to have a lower hardness than the remainder of the steel material (W).  The heat treatment comprises: a heating step in which that part of the steel material (W) which ranges from the surface to a certain depth is rapidly heated by induction heating or direct ohmic heating; and a cooling step in which the steel material (W) which has undergone the heating step is rapidly cooled at a given time period after the heating step.  In the heating step, the steel material (W) is heated to a temperature not lower than transformation point Ac1.

IPC Classes  ?

• C21D 9/60 - Continuous furnaces for strip or wire with induction heating
• C21D 9/56 - Continuous furnaces for strip or wire
• C21D 9/62 - Continuous furnaces for strip or wire with direct resistance heating
• C22C 38/00 - Ferrous alloys, e.g. steel alloys
• C22C 38/14 - Ferrous alloys, e.g. steel alloys containing titanium or zirconium

Abstract

In a case where a stable equilibrium point calculation is not calculable by using a Newton method, a damping factor of a mechanical system differential equation generator, included in a nonlinear differential algebraic equation of a power system, is set to be greater than an actual value of the generator of the power system By applying pseudo-transient simulation to the nonlinear differential algebraic equation of the power system including the mechanical system differential equation of the generator, specifying the damping factor, a norm of a mechanical system equation Is found If this norm meets a predetermined condition, variable values of the power system at a time when the norm is found are set as initial values of the nonlinear differential algebraic equation of the power system A stable equilibrium point is determined by applying the Newton method to the nonlinear differential algebraic equation in which the initial values are set.

IPC Classes  ?

• G06F 17/50 - Computer-aided design

Abstract

An imaging means images the periphery of a wind power generator at short time intervals. An image processing means compares brightness pattern distributions acquired at plurality of times, determines the direction and amount of movement of a predetermined picture point in the imaged subject, extracts a coming flying-object, if any, and processing the direction and amount as coming flying-object data. A bird judging means checks flying pattern data stored in a bird flying pattern database with the coming flying-object data and judges whether or not the flying object is a bird on the basis of the coming flying-object data. If the flying object is judged to be a bird, a bird flying path predicting means predicts the flying path of the bird. Since it is correctly judged whether or not the coming flying-object is a bird, control of the wind power generator required when a bird is approaching the wind power generator can be properly performed.

IPC Classes  ?

• F03D 7/04 - Automatic controlRegulation
• G01P 13/00 - Indicating or recording presence or absence of movementIndicating or recording of direction of movement

Goods & Services

(1) Battery chargers for electric vehicles; electrical power supplies for electric cars. (1) Electricity distribution for electric vehicles.

Abstract

A compressor having extended service life. An evaporator has a housing having a suction opening capable of being connected to a suction section of a compressor and evaporates at least a part of droplet-like or mist-like working liquid in the housing by using sucking action of the compressor performed through the suction opening. In the housing is placed a filter for separating a first space for producing the droplet-like or mist-like working liquid and a second space communicating with the suction opening. The filter is placed inclined such that the nearer the upper part of the housing, the further from the suction opening, and the filter allows vapor evaporated from the drop-like or mist-like working liquid to permeate through the filter and captures the drop-like or mist-like working liquid.

IPC Classes  ?

• F25B 39/02 - Evaporators
• B01D 46/10 - Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
• F25B 19/00 - Machines, plants or systems, using evaporation of a refrigerant but without recovery of the vapour
• F25B 43/00 - Arrangements for separating or purifying gases or liquidsArrangements for vaporising the residuum of liquid refrigerant, e.g. by heat

Abstract

A condenser having two deaeration chambers separated by cooling water, wherein both the deaeration chambers are prevented from communicating with each other even if the pressure difference between the deaeration chambers increases. The condenser has a housing and a flow section. The housing has in it a first deaeration chamber and a second deaeration chamber. The first deaeration chamber has a vapor inlet opening capable of being connected to a discharge section of the compressor and communicates with the vapor inlet opening. The second deaeration chamber is placed above the first deaeration chamber with a partition section in between. The flow section causes the cooling liquid to flow from the second deaeration chamber to the first deaeration chamber. The first and second deaeration chambers are separated by the cooling liquid in the flow section. The flow section has a pressure head chamber for receiving the cooling liquid of a specific volume absorbing a variation in the pressure difference between the first and second deaeration chambers.

IPC Classes  ?

• F28B 3/04 - Condensers in which the steam or vapour comes into direct contact with the cooling medium by injecting cooling liquid into the steam or vapour
• F25B 1/00 - Compression machines, plants or systems with non-reversible cycle
• F25B 39/04 - Condensers
• F25B 43/04 - Arrangements for separating or purifying gases or liquidsArrangements for vaporising the residuum of liquid refrigerant, e.g. by heat for withdrawing non-condensible gases
• F28F 3/04 - Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element

Abstract

[PROBLEMS] A high-pressure apparatus for forming fine bubbles of carbon dioxide is provided with which carbon dioxide can be efficiently mixed in the form of fine bubbles with a solvent at a high rate under high-pressure conditions. [MEANS FOR SOLVING PROBLEMS] The apparatus includes a main pipe line (30) in which a solvent flows at a given high velocity and a supply pipe line (31) for the carbon dioxide, the pipe line (31) having been fitted from outside to the whole periphery of the pipe line (30). The pipe line wall which separates the solvent from the carbon dioxide has fine holes (30a) formed therein. The carbon dioxide is caused to come into the solvent while being formed into fine bubbles by the shear force of the solvent flowing in the main pipe line (30). The flow velocity of the solvent and the diameter of the fine holes are set so as to result in a Weber number (We) of 10 or larger.

IPC Classes  ?

• B01F 3/04 - Mixing, e.g. dispersing, emulsifying, according to the phases to be mixed gases or vapours with liquids
• B01F 1/00 - Dissolving
• B01F 5/06 - Mixers in which the components are pressed together through slits, orifices, or screens
• B01J 19/00 - Chemical, physical or physico-chemical processes in generalTheir relevant apparatus
• C01B 31/20 - Carbon dioxide

Abstract

An optical fiber current sensor is provided with a polarization separation element (13) and a signal processing section (15). The polarization separation element separates light outputted from a sensor fiber (11) into two polarization components whose polarization surfaces orthogonally intersect with each other. The signal processing section converts the two separated polarization components into a first signal (Px) and a second signal (Py), respectively, by photoelectric conversion, and multiplies a ratio (Sx), i.e., a ratio of direct current components to alternating current components of the first signal (Px), and a ratio (Sy), i.e., a ratio of direct current components to the alternating current components of the second signal (Py), by different coefficients, respectively, and calculates the difference value between the obtained values.

IPC Classes  ?

• G01R 15/24 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using light-modulating devices

Abstract

In a reflective optical fiber current measuring device, a reflective portion (111B) provided at one end of a sensor fiber is used as a partial transmission mirror, and a standardization reference signal (Xr), which is dependent on the intensity (Pr) of reference signal light passed through the partial transmission mirror, is subtracted from a standardization detection signal (Xs), which is dependent on the intensity (Ps) of detection signal light obtained from the light reflected on the partial transmission mirror. Thus, not only (A) noise resulting from variation in emission intensity of a light source but also (B) noise resulting from variation in polarization state are removed.

IPC Classes  ?

• G01R 15/24 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using light-modulating devices

Abstract

A distribution system (100) is characterized by comprising a distribution transformer (110), a high voltage power distribution line network (120), and a plurality of sensor-contained switches (130) having a sensor which is located on a line of the high voltage power distribution line network and detects the line state, a plurality of remote terminal units (140) including a detected result acquiring section (142) and a switching control section (144), an information collecting section (168) which is connected to the remote terminal units through a communication network and collects the result of the detection acquired by the remote terminal units, a fault zone identifying section (170) for identifying a fault zone according to the result of the detection, and a management server (150) including a zone dividing section (172) which opens the sensor-contained switches on the power source side and load side of the fault zone to divide the fault zone.

IPC Classes  ?

• H02H 7/26 - Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occurred

Abstract

[PROBLEMS] To effect long-term stable reservation/isolation of carbon dioxide in an aquifer by pressure feeding into the aquifer the carbon dioxide in the state of being dissolved in a solvent (seawater or water) at high concentration close to the level of saturation concentration. [MEANS FOR SOLVING PROBLEMS] The system comprises a carbon dioxide compressor (2) for compressing carbon dioxide to a liquid or supercritical condition; a pressure feeding pump (3) for effecting compression/delivery of a solvent consisting of seawater and/or water; one or more dissolving tanks (4) for allowing injection of compressed carbon dioxide and solvent therein to thereby cause the solvent to dissolve the carbon dioxide into a carbon dioxide dissolution water; and an injection well (5) extending from the ground surface to the aquifer, used to press fit the resultant carbon dioxide dissolution water into the underground aquifer. Each of the dissolving tanks (4) has a hermetically sealed container (10) provided at its inferior portion with a carbon dioxide fill port (11) for injection of carbon dioxide fed from the carbon dioxide compressor (2) and with a solvent fill port (12) for injection of the solvent fed from the solvent pressure feeding pump (3). The container (10) is filled with a granular filler (16).

IPC Classes  ?

• B01J 19/00 - Chemical, physical or physico-chemical processes in generalTheir relevant apparatus
• B01F 1/00 - Dissolving

Abstract

Intended is to suppress such fluctuations of a PCS AC voltage in a power conversion system as might otherwise be caused at a changing time of a 'self-contained' run by instantaneous voltage drop / interruption of service. At an ordinary time of a stable system voltage, a change switch (25) is changed to the output side of an APR control circuit (22), and a change switch (400) is changed to the output side of a charge/discharge running time PWM command value creating unit (200), so that the power conversion system is run in a charge/discharge run mode. When the instantaneous voltage drop / service interruption occurs, the change switch (25) is changed to the output side of a before self-contained run current command value creating unit (60), so that the constant current discharge run for discharging for a predetermined time period is performed with the current command value of the before self-contained run current command value creating unit (60). Thus, the PCS AC voltage fluctuations of the power conversion system are suppressed, when the self-contained run is made after lapse of a predetermined time period by changing the change switch (400) to the output side of a self-contained PWM command value creating unit (30).

IPC Classes  ?

• H02M 7/48 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
• H02J 9/06 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over

Abstract

Provided are pipeline residual stress improving method and device, which are enabled to improve the residual stress reliably, irrespective of the disposed state and the constituted state of a pipeline, by specifying the management ranges of working conditions. When a cylindrical pipeline (2) is improved in its residual stress by irradiating the outer circumference of the welded portion (C) of the pipeline (2) locally with a laser beam (5a) and by moving an irradiated region (S) circumferentially, therefore, a plurality of thermocouples (9) are disposed at the pipeline (2) to be worked, and the temperature history of the outer face of the pipeline (2) by the irradiation of the laser beam (5a) is managed by measuring the temperature history itself.

IPC Classes  ?

• C21D 9/08 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes
• B23K 31/00 - Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by any single one of main groups
• C21D 1/30 - Stress-relieving
• C21D 1/34 - Methods of heating
• C21D 9/50 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for welded joints
• B23K 101/06 - Tubes
• B23K 103/04 - Steel alloys

Abstract

Provided is an AC-DC conversion device capable of making a small and inexpensive system even in the case of an instantaneous low compensation capacity » a load leveling capacity. The conversion device is constituted by connecting a fast switch between the commercial power source and a load and by connecting a PCS having a power storage unit, an AC-DC converter and a linking transformer between the fast switch and the load. A portion of the capacity constituting the power storage unit is made of a NaS battery, and most of the remainder of the capacity is an electric double-layer capacitor.

IPC Classes  ?

• H02J 9/06 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over
• H02J 3/32 - Arrangements for balancing the load in a network by storage of energy using batteries with converting means

Abstract

An audio recognition function is added to a sheet on a computer screen including elements which can be set without modifying programs constituting the sheet on the computer screen. A computer is made to function as: means for receiving information associated with an operation of a user interface via computer input means from a computer program; means used when the user interface has received a selection of any of positions on the sheet, for receiving an input of information associated with a character to be specified by a speech which is to be inputted in correspondence with a sheet upper-node position.

IPC Classes  ?

• G06F 3/16 - Sound inputSound output
• G10L 15/00 - Speech recognition

Abstract

An electromagnetic wave detector detects an electromagnetic signal propagating in a metal tank at a plurality of positions in the external circumferential direction of an insulating spacer. TE11 mode propagates by using a cut-off frequency from the detected electromagnetic signal and a signal of a frequency band where the TE21 mode does not propagate is extracted by a TE11 detection device. From the intensity of the signal extracted by the TE11 detection device and position information in the external circumferential direction of the electromagnetic wave detector, the intensity distribution of the electromagnetic waves in the external circumferential direction of the metal tank is detected by the intensity detection device. Thus, a partial discharge is detected. This method uses structure information output means for outputting internal structure information on a gas insulation device. It is judged whether a partial discharge is present or absent according to the electromagnetic wave intensity distribution in the external circumferential direction of the metal tank detected by the intensity detection device and the internal structure information on the structure information output means.

IPC Classes  ?

• G01R 31/12 - Testing dielectric strength or breakdown voltage

Abstract

[PROBLEMS] A torque measurement device capable of more accurately specifying the position of reflective bodies attached to a rotating body and more accurately obtaining torque of the rotating body. [MEANS FOR SOLVING PROBLEMS] A signal processing device (16) causes a laser beam from a laser beam output device (11) to be applied to the surface of a rotating body (13) via a beam transmission/reception device (12) and obtains torque of the rotating body (13) based on a reflection pattern from reflective bodies (14a, 14b) arranged on the rotating body (13). The signal processing device (16) stores data that relates to a reflected laser beam of the laser beam applied to the surface of the rotating body (13) and is inputted as the rotating body is rotated. Based on the reflection beam data, the signal processing device (16) specifies, as the positions of the reflection bodies, the position where the reflection beam data corresponding to a standard reflection pattern of the pair of reflection bodies (14a, 14b), arranged with an axial spacing on the surface of the rotating body, is present. Then, the signal processing device (16) calculates the amount of torsion of the rotating body (13) based on the positions of the pair of reflection bodies and calculates torque based on the calculated amount of torsion of the rotating body (13).

IPC Classes  ?

• G01L 3/10 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating

Abstract

[PROBLEMS] A torque measurement device capable of more accurately specifying the position of reflective bodies attached to a rotating body and more accurately obtaining torque of the rotating body. [MEANS FOR SOLVING PROBLEMS] A pair of reflective bodies (14a, 14b) is arranged with an axial spacing on the surface of the rotating body (13), and data on reflected light with a reflection pattern of the pair of reflective bodies (14a, 14b) is inputted and stored in a computer. A point at which AIC relative to a model of data on reflected light from the rotating body (13) is minimum is determined to detect the region where the pair of reflective bodies (14a, 14b) is present. Then, the amount of torsion of the rotating body (13) is calculated based on the position of the reflective bodies that can be specified by the detected region of presence of the pair of reflective bodies (14a, 14b), and torque is calculated based on the calculated amount of torsion of the rotating body.

IPC Classes  ?

• G01L 3/10 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating

Abstract

A wind-driven electricity generation device where the number of collisions of flying objects to a blade and bird strikes are reduced. The wind-driven electricity generation device has a tower erected on the ground, a nacelle fixed to the tower, blades rotatably fixed to the nacelle with a hub in between, an obstacle search device capable of detecting a flying object in front, on the windward side, and blade angle control means for controlling the change in the angle of the blades including a rotation stop position. The obstacle search device continuously searches for a flying object, and when it is determined that a flying object is approaching the electricity generation device, the obstacle search device performs control so that the blade angle control means changes the angle of the blades to the rotation stop position.

IPC Classes  ?

• F03D 7/04 - Automatic controlRegulation
• F03D 11/00 - Details, component parts, or accessories not provided for in, or of interest apart from, the other groups of this subclass

Abstract

A method for calculating interface resistance in which the complex impedance of a cell for a calculation object fuel cell is measured under measurement conditions where only the gas composition of fuel pole side gas is different and measurement conditions where only the gas composition of air pole side gas is different to obtain a graph of real part resistance difference, a decision is then made from which of the fuel pole side interface and the air pole side interface an arc in the call call plot of the cell for calculation object fuel cell is derived under work condition, fuel pole side interface resistance Ria and air pole side interface resistance Ric are determined from the call call plot or determined by performing fitting on the call call plot and an equivalent circuit. The interface resistance can be calculated even if the thickness of electrolyte in the cell for fuel cell is small or the area or profile at the joint is not identical on the fuel pole side and the air pole side.

IPC Classes  ?

• H01M 8/04 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
• G01R 27/02 - Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant

Abstract

An optical oil detector for detecting oil leaked into water by an optical fiber. The optical oil detector has a float (17a) floating on the water and moving up and down according to a variation in the water level, a fiber sensor (42) fixed to the float (17a) and moving up and down with the float (17a), a light emitting element provided at one end of the fiber sensor (42) and transmitting light to the fiber sensor (42), and a light receiving element provided at the other end of the fiber sensor (42) and converting the light inputted from the fiber sensor (42) into an electric signal.

IPC Classes  ?

• G01F 23/28 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
• G01M 3/38 - Investigating fluid tightness of structures by using light

Abstract

A content distribution system (100) includes a Web server (40) and a terminal device (50). The Web server (40) is formed by: a final content file (25) for managing contents; a meta content file (26) for managing at least content reproduction start information, an annotation displayed while being superimposed on the content, and the display time information by describing them in a meta content; and a content distribution function (41) for reading out the annotation itself and its display time information together with the content from the final content file (25) and the meta content file (26)to generate display information (such as data in the dynamic HTML format) and distributing the information to the terminal device (50). The terminal device (50) has a Web browser (51) for receiving the display information from the Web server (40) and displaying it.

IPC Classes  ?

• H04N 7/173 - Analogue secrecy systemsAnalogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
• G11B 27/034 - Electronic editing of digitised analogue information signals, e.g. audio or video signals on discs
• H04N 5/91 - Television signal processing therefor

Abstract

A content edition/generation system (1) for editing at least one source content to generate a multimedia content includes: a source content file (24) for managing a source content; a stage window (32) provided by an authoring function (21) arranging the source content; a time line window (33) having a plurality of tracks (33a) corresponding to the reproduction time of the multimedia content and provided by the authoring function (21) for allocating the tracks (33a) for each content arranged in the stage window (32) and managing the reproduction period including display of the source content in the multimedia content and the display end time; and a data manager function (22) for managing the position of the content arranged on the stage window (32) with respect to the stage window (32) and its size and the reproduction period with respect to the tracks (33a) as a view object (221) correlated to the content.

IPC Classes  ?

• H04N 7/173 - Analogue secrecy systemsAnalogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
• G11B 27/034 - Electronic editing of digitised analogue information signals, e.g. audio or video signals on discs
• H04N 5/91 - Television signal processing therefor

Abstract

A summary generation function (60) generates a visible thumbnail file (66) corresponding to an annotation displayed while being superimposed on a distributed content. The summary generation function (60) is formed by: a final content file (25) for managing a content; a meta content file (26) for managing at least content reproduction start time information, the annotation itself superimposed on the content when displayed, and its display time information by describing them in the meta content; an annotation list generation function (61) for extracting the annotation itself and its display time information as annotation information from the meta content file (26) to generate an annotation list (64); a thumbnail image cut out function (62) for generating a thumbnail image (65) for each of the extracted annotation information; and a thumbnail file generation function (63) for generating a thumbnail file (66) from the annotation list (64) and the thumbnail image (65).

IPC Classes  ?

• H04N 7/173 - Analogue secrecy systemsAnalogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
• G11B 27/034 - Electronic editing of digitised analogue information signals, e.g. audio or video signals on discs
• H04N 5/91 - Television signal processing therefor

Abstract

Provided is a technique for performing a precise flow rate measurement of a large-bore pipeline without causing any aliasing. Ultrasonic pulses are transmitted at a first repetition frequency and at a second repetition frequency different from the first one, and fluid velocity distribution measuring means measures a first flow velocity distribution for the first repetition frequency and a second flow velocity distribution for the second repetition frequency. Flow rate calculating means specifies either a first noise-superposed area to occur with the first repetition frequency or a second noise-superposed area to occur with the second repetition frequency, and calculates the flow velocity distribution either by eliminating the first noise-superposed area from the first flow velocity distribution and interpolating it with the second flow velocity distribution or by eliminating the second noise-superposed area from the second flow velocity distribution and interpolating it with the first flow velocity distribution.

IPC Classes  ?

• G01F 1/66 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters

Abstract

An ultrasonic flowmeter contributive to more accurate measurement of flow rate even when the surface temperature of piping is high. An ultrasonic transmission means and a means for receiving an ultrasonic echo are formed integrally into a transducer (20). A wedge (30) for securing the ultrasonic transmission means (transducer (20)) to the outer wall surface of fluid piping (10) concerning fluid (11) to be measured is provided, and that wedge (30) is formed by sintering and molding graphite. Distance from the outer wall surface to the inner wall surface of the fluid piping (10) is equal to integral multiples of the half wavelength of incident ultrasonic wave, and the distance from the transducer (20) to the outer wall surface of the fluid piping (10) in the wedge (30) is equal to integral multiples of the half wavelength of incident ultrasonic wave.

IPC Classes  ?

• G01F 1/66 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters

Abstract

A technology for accurately measuring with the use of an ultrasonic flowmeter the flow rate through an atomic reactor water supply piping interposed between an atomic reactor and an atomic reactor water supply pump. In reactor coolant cleaning system (30), a pipe joined with reactor water supply system (10) is branched, thereby forming auxiliary path (A) also joined with the reactor water supply system (10). The auxiliary path (A) is furnished with restriction part (C) having an inside diameter rendered smaller than in other parts of the auxiliary path (A). Thus, there is provided an atomic reactor water supply piping structure. In this structure, cavitation bubbles occur from the restriction part (C). Ultrasonic transducer (40) is disposed between atomic reactor (1) and auxiliary path (A) in the piping for constituting the reactor water supply system (10), thereby carrying out measurement of the flow rate of fluid within the piping.

IPC Classes  ?

• G21C 17/032 - Reactor-coolant flow measuring or monitoring
• G01F 1/00 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
• G01F 1/66 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
• G21D 1/00 - Details of nuclear power plant
• G21D 1/02 - Arrangements of auxiliary equipment

Abstract

A power supply interruption system comprising a connector (10) having one side connected with a system power supply line (A) and the other side connected with an electric apparatus (100) for conducting/interrupting power supply from the system power supply line (A) to the electric apparatus (100), a sensor (11) for sensing a seismic quake, and a signal transmitter (12) for generating a certain signal based on the quake information detected by the sensor (11) and transmitting the certain signal to the connector (10). Upon detecting a seismic quake, the sensor (11) transmits a quake signal to the signal transmitter (12) and the signal transmitter (12) interrupts conduction of the connector (10), thereby preventing electric fire during disaster.

IPC Classes  ?

• H02H 5/00 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
• H01R 13/533 - Bases or cases made for use in extreme conditions, e.g. high temperature, radiation, vibration, corrosive environment, pressure
• H01R 13/70 - Structural association with built-in electrical component with built-in switch

Abstract

An information management providing system includes a client (2) and a server (3). The client (2) has a sensor unit (10) for detecting home environment information, a reception unit (11) for receiving the home environment information transmitted by the sensor unit (10) according to a predetermined radio specification, a home environment information accumulation unit (12) for accumulating the home environment information, and a transmission unit (13) for transmitting the home environment information via a network to the server (3). The server (3) extracts arbitrary information according to the home environment information provided from the client (2) and provides the extracted information via the network to a user registered in advance. Moreover, when a disaster has occurred, disaster information concerning the home where the client (2) is installed is generated according to the home environment information accumulated in an information accumulation unit (61) and provides it via the network.

IPC Classes  ?

• H04M 11/04 - Telephonic communication systems specially adapted for combination with other electrical systems with alarm systems, e.g. fire, police or burglar alarm systems
• G08B 25/04 - Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using a single signalling line, e.g. in a closed loop
• G08B 27/00 - Alarm systems in which the alarm condition is signalled from a central station to a plurality of substations

Abstract

⏧PROBLEMS] To accurately measure a torque by correcting an error of reflected light data from a pair of reflectors generated by an accuracy error of an A/D converter. ⏧MEANS FOR SOLVING PROBLEMS] A laser beam from a laser beam output device is applied to a surface of a rotating body having a pair of reflectors. The reflected light is received by a light transmission/reception device, converted into a voltage signal by a pair of photo-detectors, and then subjected to analog/digital conversion by a pair of A/D converters. Correlation processing means of a signal processing device calculates a twist amount of the rotating body according to the reflected light data for a plurality of rations of the rotating body inputted by input signal processing means and stored in an input data storage unit. Corrected twist amount calculation means calculates a corrected twist amount obtained by correcting an error generated by an accuracy error of the pair of A/D converts contained in the twist amount of the rotating body for the plurality of rotations calculated by the correlation processing means. Torque calculation means calculates the torque of the rotating body according to the corrected twist amount.

IPC Classes  ?

• G01L 3/08 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving optical means for indicating

Abstract

It is possible to provide a non-contact vibration measuring technique for a structure by continuously imaging the structure at a far distance by using a PIV system and measuring vibration through image analysis. A vibration measuring method includes: an imaging step for imaging an object at a far distance at a micro time interval by using a long focus optical system; an image processing step for comparing luminance pattern distributions of a plurality of times obtained by the imaging step so as to measure a movement direction and a movement amount of a predetermined particle image in the object; a measuring result input step for inputting a plenty of measurement results of the movement direction and the movement amount of the predetermined particle image measured by the image processing step; a vibration frequency calculation step for calculating an acceleration vector from the imaging interval and performing Fourier transform on it so as to calculate the vibration frequency of the object; and a vibration frequency output step for outputting the calculation result obtained by the vibration frequency calculation step.

IPC Classes  ?

• G01H 9/00 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means

Abstract

A vapor generation system includes a heat pump in which an operation medium flows and also includes a first route in which a first medium flows and that has a section to be heated at which the first medium is evaporated by heat transmission from the heat pump.

IPC Classes  ?

• F22B 1/16 - Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being hot liquid or hot vapour, e.g. waste liquid, waste vapour
• F22B 3/02 - Other methods of steam generationSteam boilers not provided for in other groups of this subclass involving the use of working media other than water
• F25B 1/00 - Compression machines, plants or systems with non-reversible cycle

Abstract

There are provided a signal processing device and a signal processing method capable of setting an optimal correlation code in accordance with frequency characteristic of a transmission path. A correlation code device (11) includes a pre-coder (12) and a correlation device (13). The pre-coder (12) and the correlation device (13) have a plurality of delay stages and use a correlation coefficient of a rational number. A controller (19) decides an optimal correlation coefficient according to a channel response of the transmission path. The pre-coder (12) and the correlation device (13) feed back only the signal of predetermined upper bits of a transmission multi-value signal. The correlation coefficient is extended into an arbitrary ration number and by using a correlation code appropriate for the frequency characteristic of the transmission path, it is possible to effectively use a low-frequency range. This reduces the error ratio as compared in the conventional way. Moreover, by reducing the number of calculation bits of the pre-coder (12) to predetermined upper bits, this can be realized by the calculation speed obtained by the current LSI fabrication technique.

IPC Classes  ?

• H04B 3/04 - Control of transmissionEqualising
• H04L 25/497 - Transmitting circuitsReceiving circuits using code conversion at the transmitterTransmitting circuitsReceiving circuits using predistortionTransmitting circuitsReceiving circuits using insertion of idle bits for obtaining a desired frequency spectrumTransmitting circuitsReceiving circuits using three or more amplitude levels by correlative coding, e.g. partial response coding or echo modulation coding

Abstract

An ultrasonic flow rate measuring device having an ultrasonic flowmeter for measuring the velocity distribution and flow rate of fluid in piping. The ultrasonic flowmeter performs the measurement by applying an ultrasonic wave to the fluid and receiving an ultrasonic echo reflected by reflectors in the fluid. The measuring device produces a sufficient amount of bubbles in the piping by a simple facility, and the bubbles are diffused in the piping without requiring a hydraulic machine having a stirring function. A bubble supply means is provided on the upstream side of the ultrasonic flowmeter, and a solid material having properties sublimating in the piping is supplied from the bubble supply means, or alternatively, a granular solid state material is injected into the piping along with gas having a pressure higher than that in the piping.

IPC Classes  ?

• G01F 1/66 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
• G01P 5/00 - Measuring speed of fluids, e.g. of air streamMeasuring speed of bodies relative to fluids, e.g. of ship, of aircraft

Abstract

A system and a process for removing effectively mercury components contained in a gas in a slight amount which are employed in wet gas refining of a gas produced by gasification of coal or heavy oil or in petroleum refining. Specifically, a mercury removal system for wet gas refining comprising a water washing column for transferring mercury components contained in a subject gas introduced thereto to an absorbent fluid and a flash drum (10) for flashing the absorbent fluid discharged from the water washing column to separate the fluid into a gas component and an effluent, which system is provided with an oxidation means (1) of adding an oxidizing agent to the absorbent fluid in the stage before the flash drum (10) and an effluent treatment means (13) of subjecting the effluent to coagulating sedimentation to discharge the mercury components contained in the effluent as a part of sludge in the stage after the flash drum (10); and a process for the removal of mercury with the system.

IPC Classes  ?

• C10K 1/10 - Purifying combustible gases containing carbon monoxide by washing with liquidsReviving the used wash liquors with aqueous liquids
• B01D 53/64 - Heavy metals or compounds thereof, e.g. mercury
• C10K 1/14 - Purifying combustible gases containing carbon monoxide by washing with liquidsReviving the used wash liquors with aqueous liquids alkaline-reacting organic
• B01D 19/00 - Degasification of liquids
• C02F 1/20 - Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
• C02F 1/52 - Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
• C02F 1/72 - Treatment of water, waste water, or sewage by oxidation
• C02F 1/76 - Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens