Abstract

An electronic detonator control chip (100) includes a communication interface circuit (101), a rectification bridge circuit (102), a charging circuit (103), a charging control circuit (110), a power management circuit (104), a firing control circuit (105), a logic control circuit (106), a non-volatile memory (107), a reset circuit (111), a safe discharging circuit (108), and a clock circuit (202). Wherein, the communication interface circuit (101) includes a data modulation module (210) and a data demodulation module (211) including two data demodulation circuits (212). The logic control circuit (106) further includes a programmable delay module (281), an input/out interface (282), a serial communication interface (283), a prescaler (284), a CPU (285), and so on. Therefore, the electronic detonator control chip provided by the invention enables to realize the functions of two-wire non-polarity connection, bidirectional communication with a detonation equipment external of the electronic detonator control chip, ID card inside the detonator, control of the detonation process and online program of the delay time and so on.

IPC Classes  ?

• F23Q 7/00 - Incandescent ignitionIgnition using electrically-produced heat, e.g. lighters for cigarettesElectrically-heated glowing plugs

Abstract

An ignition head (100) includes an ignition bridge wire (101), a pair of metal sheets (103) , a metal sheet base (102) and a shell (104). The ignition bridge wire (101), the metal sheets (103) and the metal sheet base (102) integrally form an assembly part (105). The pair of metal sheets (103) are embedded in the metal sheet base (102) and insulated with each other. One end of the pair of metal sheets (103) is welded with the ignition bridge wire (101) so that the pair of metal sheets (103) are electrically connected. The other end of the pair of metal sheets (103) in combination with the metal sheet base (102) forms a groove (106). The end of the assembly part (105) welded with the ignition bridge wire (101) is mounted in the end of the shell (104) with larger width or bigger diameter. An ignition control circuit board (200) is snapped in the groove (106) of the assembly part (105) so that the circuit board (200) is electrically connected with the metal sheets (103). The present invention uses a mechanical locking mode to realize electrical connection of the ignition head and the circuit board, and increases the production efficiency of the ignition head.

IPC Classes  ?

• F42C 19/12 - PrimersDetonators electric
• F42B 3/00 - Blasting cartridges, i.e. case and explosive

Abstract

The present invention provides a master machine and a slave machine in master-slave mode direct current carrier communication system. The master machine includes a master machine clock circuit, a master machine power supply system, a master machine communication interface and a master machine control module; the slave machine includes a slave machine communication interface, a rectifier bridge circuit, an energy storage module, a slave machine power supply system, a slave machine clock circuit and a slave machine control module. The master machine communication interface may be a single-polarity communication interface or a dual-polarity communication interface. The slave machine communication interface includes a slave machine data modulation module and a slave machine data demodulation module. The master machine implements data transmitting and data receiving under a communication voltage or two different communication voltages. Applying the solution above, bidirectional data exchange between the master machine and the slave machine is implemented when the master machine supplies electric power for the slave machine, and the connection of the master machine with the slave machine via a pair of non-polarity wires is also implemented. Therefore, the system maintainability and communication accuracy can be improved, and the designs of the master machine and the slave machine, and the connection between them are simplified. Therefore, the solution can be applied to the minitype slave machine system such as electronic detonator network and intelligent sensor network.

IPC Classes  ?

• H04B 3/54 - Systems for transmission via power distribution lines

Abstract

A setting flow for delay time of a blasting device in an electronic detonator blasting system performs steps as follows: Step A1, executing a clock calibrating procedure (2) of the blasting device; Step A2, executing a delay time writing procedure (3) of the blasting device; Step A3, outputting an error information list to a human-computer interaction module which displays the error information list (4); Step A4, ending the setting flow for delay time of the blasting device (5). The system is comprised of the blasting device and one or more electronic detonators. One or more electronic detonators is connected to a signal bus derived from the blasting device in parallel. The blasting device includes a control module, a human-computer interaction module, a power supply management module, a signal modulating and transmitting module, a signal modulating and receiving module and a power suppy. The control module includes a CPU and a timer. An alternate design of the setting flow for delay time of the blasting device is executing a clock calibrating procedure during a delay time writing procedure. A controlling flow for an electronic detonators in an electronic detonator blasting system performs a clock calibrating procedure and a delay time writing procedure respectively according to an outer command.

IPC Classes  ?

• F42D 1/05 - Electric circuits for blasting
• F42C 11/06 - Electric fuzes with time delay by electric circuitry
• F42C 19/12 - PrimersDetonators electric

Abstract

An electronic detonator initiating device includes a control module (101), a man-machine interface module (102), a power source managing module (104), a signal modulating and transmitting module (103), a signal demodulating and receiving module (105), a signal bus (106) and a power source (107). The power source managing module (104) includes an A/D converter (111), a D/A converter (112) and a voltage converter (113). The signal modulating and transmitting module (103) includes a signal modulating module (131) and a boosting module (132). The signal demodulating and receiving module (105) includes a signal sampling module (152) and a signal conditioning circuit (153). The man-machine interacting module (102) includes a setting and display device (123) and an authorization device (121), a locking device (122) or a misoperation prevent switch (124). A main control flow for said initiating device expands the flow of a communication voltage managing course, a signal transmitting course, a signal receiving course, a charging course and an initiating course. Therefore, the initiating device with the electronic detonator makes the two-way communication with the electronic detonator and the initiation of an electronic detonator etc.

IPC Classes  ?

• F42D 1/05 - Electric circuits for blasting
• F42C 11/04 - Electric fuzes with current induction

Abstract

An electronic detonator control chip (100) includes a charge control circuit (110), a firing control circuit (105), a logic control circuit (106), a safe discharge circuit (108) etc., and especially includes a detecting circuit (111). The detecting circuit (111) is controlled by the logic control circuit (106), and outputs an achieved signal to the logic control circuit (106) to detect whether the circuits connections of the charge control circuit (110), the firing control circuit (105), the safe discharge circuit (108), an energy storage device (203), a firing device (204), or the loop consisted of the combination of the above five components are correct. And a method of detecting the connection correctness of the chip (100) includes: first, detecting the initial working state of the chip (100); second, detecting the charging loop; afterward, detecting the firing loop or the safe discharge loop; again, charging the energy storage device (203); in succession, detecting the undetected loop in the firing loop or the safe discharge loop; finally, resetting the chip (100) to the initial working state.

IPC Classes  ?

• F42C 19/12 - PrimersDetonators electric

Abstract

An electronic detonator control chip (100) includes a communication interface circuit (101), a rectification bridge circuit (102), a charging circuit (103), a charging control circuit (110), a power management circuit (104), a firing control circuit (105), a logic control circuit (106), a non-volatile memory (107), a reset circuit (111), a safe discharging circuit (108) and a clock circuit (202).Wherein, the communication interface circuit (101) includes a data modulation module (210) and a data demodulation module (211) including two data demodulation circuits (212). The logic control circuit (106) further includes a programmable delay module (281), an input/out interface (282), a serial communication interface (283), a prescaler (284), a CPU (285) and so on. Therefore, The electronic detonator control chip provided by the invention enables to realize the functions of  two-wire non-polarity connection, bidirectional communication with a detonation equipment external of the electronic detonator control chip, ID card inside the detonator, control of the detonation process and online program of the delay time and so on.

IPC Classes  ?

• F42C 19/12 - PrimersDetonators electric