WO2012175012A1 - Encodeur de détonateur électronique - Google Patents

Encodeur de détonateur électronique Download PDF

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Publication number
WO2012175012A1
WO2012175012A1 PCT/CN2012/077165 CN2012077165W WO2012175012A1 WO 2012175012 A1 WO2012175012 A1 WO 2012175012A1 CN 2012077165 W CN2012077165 W CN 2012077165W WO 2012175012 A1 WO2012175012 A1 WO 2012175012A1
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WO
WIPO (PCT)
Prior art keywords
module
circuit
communication
electronic detonator
pair
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PCT/CN2012/077165
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English (en)
Chinese (zh)
Inventor
颜景龙
张宪玉
刘星
李风国
王传宝
赖华平
Original Assignee
北京北方邦杰科技发展有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 北京北方邦杰科技发展有限公司 filed Critical 北京北方邦杰科技发展有限公司
Priority to EA201400049A priority Critical patent/EA025654B1/ru
Priority to AU2012272289A priority patent/AU2012272289A1/en
Publication of WO2012175012A1 publication Critical patent/WO2012175012A1/fr
Priority to ZA2014/00530A priority patent/ZA201400530B/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42D—BLASTING
    • F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
    • F42D1/04—Arrangements for ignition
    • F42D1/045—Arrangements for electric ignition
    • F42D1/05—Electric circuits for blasting
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G05B19/0423—Input/output
    • G05B19/0425—Safety, monitoring

Definitions

  • the invention relates to the technical field of pyrotechnics control, in particular to an electronic detonator encoder for an electronic detonator detonating network.
  • Patent Application Document 200810135028.0 A technical solution for an electronic detonator detonating device that can be used with an electronic detonator is disclosed.
  • the technical solution constructs the basic framework of the electronic detonator detonating device. It realizes the basic functions required for two-way communication with electronic detonators and detonation of electronic detonators.
  • FIG. 1-1 A schematic diagram of the detonating network in use of the above-described electronic detonator detonating device is shown in Figure 1-1.
  • the detonating network routes a detonating device 100 At least one electronic detonator 200, and a signal bus 300 connecting the detonating device 100 and the electronic detonator 200, and the electronic detonator 200 is connected in parallel by the detonating device 100
  • the signal bus is drawn between 300.
  • the detonating device 100 and the electronic detonator 200 pass the signal bus 300
  • the transfer of energy and data is performed, thereby realizing the management and control of the detonating process and the detonating energy of the detonating device, and realizing the two-way data interaction with the electronic detonator.
  • the detonating device of the above technical solution includes a signal modulation transmitting module, and the module further includes a signal modulation module and a boosting module. See Figure 1-2. .
  • the boost module is used to generate The required detonation voltage is charged to the energy storage device in the electronic detonator.
  • the boosting module increases the voltage of the power output and outputs the signal to the signal bus through the switching of the signal modulation module to charge the detonating storage capacitor in the internal energy storage device of the electronic detonator; the signal modulation module is used to connect to the signal bus.
  • the program The management and control of the energy required by the detonating device for the electronic detonator are realized: on the one hand, in the communication phase, the voltage on the signal bus is controlled to a lower communication voltage to ensure the safety of the detonating network communication process; In the detonation phase, the voltage on the signal bus is switched to the high voltage output through the boost module, that is, the above-mentioned detonation voltage, thereby ensuring that the electronic detonator obtains sufficient detonating energy.
  • the signal modulation module also performs modulation of data when the detonating device transmits data to the electronic detonator, thereby implementing DC carrier communication between the detonating device and the electronic detonator.
  • the control module controls the switching of the voltage outputted by the signal modulation module between the communication voltage and the detonation voltage, so that the communication bus always outputs a lower communication voltage when the detonating device communicates with the electronic detonator. Only when the detonation preparation is completed and the detonation storage capacitor needs to be charged, the communication voltage on the signal bus is switched to a higher detonation voltage, which can ensure the safety of the communication process to a certain extent. However, due to the detonating device 100 It has the ability to output a higher detonation voltage.
  • the object of the present invention is to solve the above drawbacks of the prior art, and provide an electronic detonator network device capable of two-way communication with an electronic detonator and ensuring the intrinsic safety of the communication process, that is, the electronic detonator encoder of the present invention. .
  • the electronic detonator encoder has two ends connected to an electronic detonator initiator, and the other ends lead to a signal bus, and at least one electronic detonator is connected in parallel between the signal buses.
  • An electronic detonator detonator, at least one electronic detonator encoder connected in parallel to the electronic detonator detonator, and one or more electronic detonators connected in parallel to the electronic detonator encoder form an electronic detonator detonating network as described herein.
  • the electronic detonator encoder of the present invention comprises a power source, a power management module, a pair communication module, a pair communication module, and a control module.
  • the power management module is configured to convert the voltage outputted by the power supply into an operating voltage provided to the upper communication module, the lower communication module, and the control module, and a communication voltage provided to the lower communication module; the upper communication module, For communicating with an electronic detonator initiator; a communication module for supplying a communication voltage to at least one electronic detonator through a signal bus during communication, and communicating with at least one electronic detonator at a communication voltage; and, in detonating The detonation voltage outputted by the electronic detonator detonator is supplied to the at least one electronic detonator for charging through the signal bus; and the control module is configured to control the operation of the power management module, the upper communication module, and the lower communication module.
  • the above technical solution constructs the basic framework of the electronic detonator encoder of the present invention.
  • the electronic detonator encoder Under the control of its internal control module, the electronic detonator encoder realizes two-way communication with the electronic detonator by the upper communication module, and realizes two-way communication with the electronic detonator through the lower communication module.
  • the power management module in the electronic detonator encoder only outputs the working voltage and the communication voltage. Therefore, the electronic detonator encoder of the present invention does not have the ability to output a detonating voltage to the electronic detonator network, thereby ensuring the intrinsic safety in the communication phase. .
  • the electronic detonator encoder can output the detonation voltage outputted by the electronic detonator detonator to the electronic detonator through the signal bus, so that the electronic detonator detonator can charge the electronic detonator in the detonator network after the detonation preparation is completed.
  • Such a technical solution realizes the communication of the electronic detonator encoder, the electronic detonator detonator, and the electronic detonators connected in the electronic detonator network in the detonating network, and realizes the communication between the electronic detonator encoder and the electronic detonator. Intrinsic safety.
  • connection relationship of each module in the above electronic detonator encoder can be implemented by the following solutions:
  • the power supply, the power management module, the upper communication module, the lower communication module, and the control module are connected to the first power reference ground.
  • the power supply is connected to the power management module; the control module is connected to the power management module, the upper communication module, and the lower communication module.
  • the working voltage output end of the power management module is connected to the upper communication module, the lower communication module, and the control module; the communication voltage output end of the power management module is connected to the lower communication module.
  • the remaining two ends of the upper communication module are respectively connected to the lower communication module, and are connected to the outside of the electronic detonator encoder and connected to the electronic detonator initiator.
  • the other ends of the lower communication module are connected to the outside of the electronic detonator encoder to form a signal bus, and at least one electronic detonator is connected in parallel on the signal bus.
  • the power management module may further include a pair of communication voltage sampling terminals, and the pair of communication voltage sampling terminals are connected to the signal bus one-to-one.
  • Figure 1-1 shows the patent application document 200810135028.0 Schematic diagram of the detonating network of the electronic detonator detonating device in use;
  • Figure 1-2 is a schematic diagram of the structure of an electronic detonator detonating device in the patent application document 200810135028.0;
  • FIG. 2 is a schematic diagram of a detonating network layout of the present invention
  • FIG. 3 is a schematic structural view of an electronic detonator encoder according to the present invention.
  • FIG. 4 is a schematic diagram showing still another structure of an electronic detonator encoder according to the present invention.
  • FIG. 5 is a schematic structural diagram of a power management module according to the present invention.
  • FIG. 6 is another schematic structural diagram of a power management module according to the present invention.
  • FIG. 7 is a schematic structural view of a control module in the present invention.
  • FIG. 8 is a schematic structural view of an electronic detonator waveform conversion module according to the present invention.
  • FIG. 9 is a schematic diagram showing the structure of a data decoding circuit in an electronic detonator waveform conversion module
  • Figure 10 is a schematic diagram showing the structure of a sampling circuit in an electronic detonator waveform conversion module
  • FIG. 11 is a schematic structural view of an electronic detonator waveform conversion module having a frequency measuring function according to the present invention
  • FIG. 12 is a schematic structural view of a detonator waveform conversion module according to the present invention.
  • FIG. 13 is a schematic diagram showing the structure of a data decoding receiving circuit in a detonator waveform conversion module
  • FIG. 14 is a schematic diagram showing the structure of an isolated demodulation module in the upper communication module having two ends connected to an electronic detonator initiator according to the present invention
  • 15 is a schematic diagram showing the structure of an isolated demodulation module in the upper communication module of the present invention connected to an electronic detonator initiator;
  • Figure 16-1 is a schematic diagram showing the overall structure of the upper communication power supply circuit of the present invention.
  • Figure 16-2 is a schematic diagram showing the refinement of the upper communication power supply circuit of the present invention.
  • FIG. 17 is a schematic diagram of an implementation of an isolation modulation circuit in the present invention.
  • FIG. 19 is a schematic diagram showing an isolated demodulation circuit corresponding to the implementation manner of FIG. 15 as a magnetoelectric isolation module;
  • FIG. 20 is a schematic structural view of the magnetoelectric isolation module of FIG. 19;
  • FIG. 21 is a schematic structural view of a magnetoelectric isolation module corresponding to the implementation manner of FIG. 14;
  • FIG. 22 is a schematic structural view of an embodiment of a transformer isolation circuit according to the present invention.
  • FIG. 23 is a schematic structural view of still another embodiment of a transformer isolation circuit according to the present invention.
  • 24 is a schematic diagram showing the structure of a pair of communication modules in the present invention.
  • 25 is a schematic diagram of a first implementation of a communication signal processing module in the present invention.
  • 26 is a schematic diagram of a second implementation of a downlink communication signal processing module according to the present invention.
  • FIG. 27 is a schematic diagram of a third implementation of a communication signal processing module in the present invention.
  • FIG. 28 is a schematic diagram of a fourth implementation of a downlink communication signal processing module according to the present invention.
  • 29 is a schematic diagram of a fifth implementation of a downlink communication signal processing module according to the present invention.
  • Figure 30 is a schematic diagram showing the structure of a demodulation module for a communication signal in the present invention.
  • Figure 31 is a schematic diagram showing the structure of a signal sampling circuit in the present invention.
  • FIG. 32 is a schematic structural diagram of a signal conditioning circuit according to the present invention.
  • Figure 33 is a schematic diagram showing still another structure of the signal conditioning circuit of the present invention.
  • Figure 34 is a schematic diagram of the implementation of the lower communication signal modulation module corresponding to Figure 27;
  • Figure 35 is a schematic diagram of an instruction sent by an electronic detonator waveform conversion module during data encoding and transmitting;
  • Figure 36 is a waveform diagram of the electronic detonator waveform conversion module during data decoding and receiving;
  • Figure 37 is a waveform diagram of the detonator waveform conversion module during data encoding and transmission
  • Figure 38 is a waveform diagram of the detonator waveform conversion module during data decoding and receiving;
  • 39 is a schematic diagram of an implementation of a single signal driving circuit in the present invention.
  • FIG. 40 is a schematic diagram of an implementation of a dual signal driving circuit in the present invention.
  • the present invention provides an electronic detonator encoder 20.
  • the encoder 20 is connected to the electronic detonator 10 at both ends, and the other ends lead to the signal bus 40.
  • At least one electronic detonator 30 is connected in parallel between the signal buses 40, as shown in FIG.
  • An electronic detonator initiator 10 at least one electronic detonator encoder 20 connected in parallel to the electronic detonator initiator 10
  • at least one The electronic detonator 30 connected to the electronic detonator encoder 20 constitutes an electronic detonator detonating network as described in the present invention.
  • the electronic detonator encoder 20 of the present invention comprises a power source 21, a power management module 22, a pair of communication modules 23, a pair of communication modules 24, and a control module 26, as shown in FIG. 3 or FIG.
  • the power management module 22 is configured to convert the voltage output by the power source 21 into an operating voltage provided to the upper communication module 23, the lower communication module 24, and the control module 26, and convert the voltage output by the power source 21 into a voltage supply.
  • the control module 26 The operations of the power management module 22, the upper communication module 23, and the lower communication module 24 are controlled.
  • connection relationship of each module in the electronic detonator encoder 20 can be described as follows:
  • the power source 21, the power management module 22, the upper communication module 23, the lower communication module 24, and the control module 26 are commonly grounded 11.
  • the power supply 21 is connected to the power management module 22, and supplies power to the module 22.
  • the control module 26 is connected to the power management module 22, the upper communication module 23, and the lower communication module 24, and performs data interaction with the above modules.
  • the working voltage output terminal 1 of the power management module 22 is connected to the upper communication module 23, the lower communication module 24 and the control module 26, and supplies operating voltages to the modules; the communication voltage output terminal 2 of the power management module 22 is connected to the lower communication.
  • Module 24 provides a communication voltage to the module 24.
  • the remaining two ends 70 and 70' of the upper communication module 23 lead to the outside of the electronic detonator encoder 20, and are connected to the electronic detonator initiator 10; the two ends 70 and 70' of the upper communication module 23 are also respectively connected to the opposite communication. Module 24.
  • the remaining two ends of the lower communication module 24 lead to the outside of the electronic detonator encoder 20 to form a signal bus 40.
  • One or more electronic detonators 30 are connected in parallel on the signal bus 40.
  • the above technical solution is to construct the basic framework of the electronic detonator encoder 20 of the present invention.
  • the electronic detonator encoder 20 realizes bidirectional communication between the encoder 20 and the electronic detonator initiator 10 through the upper communication module 23, and realizes bidirectional communication with the electronic detonator 30 through the lower communication module 24. Communication.
  • the electronic detonator encoder 20 does not have the ability to output a detonation voltage to the electronic detonator network. Therefore, the electronic detonator initiator 10 is also directly coupled to the pair of communication modules 24 for use in electronic detonators in the detonator network after the initiation of the detonation is completed.
  • the electronic detonator encoder 20 may further include a human-machine interaction module 25.
  • the human-machine interaction module 25 is used to implement The user interacts with the information of the encoder 20.
  • the human-computer interaction module 25 can receive instructions from the user and send the instructions to the control module 26 to control the other modules to perform the corresponding operations.
  • the human-computer interaction module 25 can also present the results of the operation of the encoder 20 to the user in an image or sound manner.
  • the human-computer interaction module 25 can be taken as a common device such as a keyboard or a display.
  • the human-machine interaction module 25 can be designed in the electronic detonator encoder according to actual needs.
  • the power management module may further include a pair of communication voltage sampling terminals 3 and 3' which are connected to the signal bus 40 one-to-one with respect to the communication voltage sampling terminals 3 and 3'.
  • the power management module 22 may include a voltage conversion module 221 and an analog to digital converter 222, as shown in FIG.
  • the voltage conversion module 221 and the analog/digital converter 222 are commonly grounded 11; the voltage conversion module 221 has one end connected to the power source 21 and one end to the outside of the power management module 22 to constitute the communication voltage output terminal 2 of the power management module 22.
  • the remaining end of the voltage conversion module 221 is coupled to the analog to digital converter 222 to supply power to the analog to digital converter 222; the terminal also leads to the outside of the power management module 22 to form the operating voltage output terminal 1 of the power management module 22.
  • the analog to digital converter 222 is also connected at one end to the control module 26 to transmit data to the control module 26.
  • the remaining two ends of the analog/digital converter 222 lead to the outside of the power management module 22 to constitute the communication voltage sampling terminal 3.
  • the power management module 22 provides the operating voltage required for the normal operation of other modules in the encoder 20, and provides the communication voltage on the signal bus 40 during communication with the electronic detonator 30, and monitors the value of the output communication voltage. Therefore, the communication voltage value is ensured to be much lower than the safe voltage value of the electronic detonator 30, that is, lower than the minimum voltage required for the detonating electronic detonator 30, which is advantageous for ensuring communication with the electronic detonator 30 and operation of the electronic detonator 30. safety.
  • the power management module 22 can also be implemented using the technical solution disclosed in Patent Application No. 200810135028.0, as shown in FIG.
  • the power management module 22 of FIG. 6 also includes a digital to analog converter 223 as compared to the embodiment shown in FIG.
  • One end of the digital-to-analog converter 223 is connected to one end of the voltage conversion module 221, and the operating voltage is provided by the voltage conversion module 221; one end is connected to the other end of the voltage conversion module 221, and the communication voltage adjustment signal is sent to the voltage conversion module 221.
  • the digital-to-analog converter 223 has one end grounded 11 and the other end connected to the control module 26.
  • the digital-to-analog converter 223 is configured to receive a result of the control module 26 processing the information reflecting the voltage signal on the signal bus 40.
  • the processing result is converted by the digital-to-analog converter 223 into an analog voltage signal, that is, the communication voltage adjustment.
  • the signal is supplied to the voltage conversion module 221, thereby realizing the adjustment function of the communication voltage output to the signal bus 40.
  • an analog to digital converter 222 is designed.
  • the voltage value on the signal bus 40 may not be collected and monitored, so that the power management module 22 is only constituted by the voltage conversion module 221.
  • the voltage conversion module 221 converts the electrical energy input by the power source 21 into a communication voltage and an operating voltage, respectively, and outputs the power to the outside of the power management module 22. This embodiment corresponds to the embodiment shown in FIG.
  • the above control module 26 can include a central processing unit 262 and a transceiving waveform conversion module 261.
  • the transceiving waveform conversion module 261 is composed of a detonator waveform conversion module 2630 and an electronic detonator waveform conversion module 2610, as shown in FIG.
  • the central processing unit 262, the initiator waveform conversion module 2630 and the electronic detonator waveform conversion module 2610 are both connected to the operating voltage output terminal 1 and receive power from the power management module 22.
  • the initiator waveform conversion module 2630 and the electronic detonator waveform conversion module 2610 are coupled to the central processor 262 for bidirectional data interaction with the central processor 262, respectively.
  • the central processor 262, the initiator waveform conversion module 2630, and the electronic detonator waveform conversion module 2610 are also commonly grounded 11.
  • the remaining end of the initiator waveform conversion module 2630 leads to the outside of the transceiving waveform conversion module 261 to form the upper communication terminal 8 of the control module 26, which is connected to the upper communication module 23.
  • the remaining ends of the electronic detonator waveform conversion module 2610 lead to the outside of the transceiving waveform conversion module 261 to form a down communication terminal 9 of the control module 26, and the pair of lower communication terminals are connected to the lower communication module 24.
  • the above-mentioned upper communication terminal 8 can be embodied as the upper communication output end 61 and the upper communication input end 62 of the control module 26 in the embodiment shown in FIG. 12, and the lower communication end 9 is implemented in FIG. 8 or FIG.
  • the example can be embodied as the lower communication output 71 and the lower communication input 72 of the control module 26.
  • the central processor 262 controls the operation of the initiator waveform conversion module 2630 and the electronic detonator waveform conversion module 2610 to effect bidirectional data interaction with the electronic detonator initiator 10 and the electronic detonator 30, respectively.
  • the electronic detonator waveform conversion module 2610 receives data from the lower communication module 24, converts it into a data form recognizable by the central processing unit 262, and transmits it to the central processing unit 262.
  • the electronic detonator waveform conversion module 2610 receives data from the central processor 262 and converts the signal form for transmission to the electronic detonator 30 via the pair of communication modules 24.
  • the electronic detonator waveform conversion module 2610 may include a data interface circuit 2611, a data encoding circuit 2612, a data decoding circuit 2613, and a sampling circuit 2614, as shown in FIG.
  • the data interface circuit 2611 performs bidirectional data interaction with the central processing unit 262.
  • the central processing unit 262 transmits the data to be transmitted to the data encoding circuit 2612 via the data interface circuit 2611.
  • the data encoding circuit 2612 encodes the data to be transmitted and outputs the data to the lower communication module 24; the data decoding circuit 2613 receives the communication module 24 for transmission.
  • the data to be received is decoded, and then output to the sampling circuit 2614.
  • the sampling circuit 2614 completes the sampling, the sampled data is sent to the central processing unit 262 via the data interface circuit 2611. In this way, two-way data interaction between the lower communication module 24 and the control module 26 is achieved.
  • the frequency measuring circuit 2621 can be directly added between the lower communication input terminal 72 and the data interface circuit 2611.
  • the electronic detonator waveform conversion module 2610 can be A measurement of the frequency of the signal received by the lower communication module 24 is achieved. Since the manufacturing process of the integrated circuit itself causes a certain deviation of the frequency of the on-chip oscillator, the clock frequency of the oscillator itself in the electronic detonator 30 can be measured by the frequency measuring circuit 2621 designed in the encoder 20, and then Correction of the deferred count value is implemented within the encoder 20. This design is beneficial to improve the delay of the electronic detonator detonation network.
  • the data encoding circuit 2612 of Figures 8 and 11 can each implement data encoding by means of frequency modulation, such as the waveform shown in Figure 35.
  • the data encoding circuit 2612 may transmit a preset number of m synchronous learning heads before transmitting the command word when transmitting the command.
  • the electronic detonator 30 starts the counter inside the chip after receiving the edge signal of the synchronous learning head, and counts the number of synchronous learning heads. Then, the central processor in the chip calculates the number of clocks of the RC oscillator that the serial communication interface should use corresponding to the preset communication baud rate and the preset sampling phase, thereby adjusting the data reception of the electronic detonator 30. Timing and counting interval. This ensures that the electronic detonator control chip incorporating the RC oscillator can reliably receive the control command sent from the electronic detonator encoder 20 even if the RC oscillator has problems such as temperature drift, time drift, and parameter variation.
  • the data decoding circuit 2613 in the electronic detonator waveform conversion module 2610 can be further constructed by a signal synthesis circuit 2617 and two edge flip-flops 2615 and 2616, as shown in FIG.
  • the input ends of the two edge flip-flops 2615 and 2616 respectively lead to the outside of the data decoding circuit 2613, and are connected to the lower communication module 24; the outputs of the two edge flip-flops 2615 and 2616 are respectively connected to the signal synthesizing circuit 2617;
  • the remaining ends of the synthesizing circuit 2617 lead to the outside of the data decoding circuit 2613 and are connected to the sampling circuit 2614.
  • the two edge triggers 2615 and 2616 respectively collect two pulse signals sent from the lower communication module 24, and the two signals are processed by the signal synthesis circuit 2617, and then converted into a square wave signal output to the sampling circuit 2614, and further Transmission to the central processor 262 via the data interface circuit 2611 thus enables decoding of the data transmitted by the electronic detonator 30 to the present encoder 20.
  • the signal synthesizing circuit 2617 receives the two-way pulse signals sent by the edge flip-flop 2615 and the edge flip-flop 2616, and each receives a falling edge signal. A high-low transition is performed, thus realizing the synthesis of two pulse signals.
  • the sampling circuit 2614 in the electronic detonator waveform conversion module 2610 can include a sample counting module 2619 and a storage transmitting module 2620, as shown in FIG. After the sampling circuit 2614 receives the signal waveform sent by the data decoding circuit 2613, the sampling and counting module 2619 samples and counts the intermediate point of each signal pulse, and the storage transmitting module 2620 sends the sampled data to the data interface circuit 2611, and further the data.
  • the interface circuit 2611 is sent to the central processing unit 262.
  • the sample counting module 2619 can be embodied as a counter, and the storage sending module 2620 can be embodied as a shift register.
  • the detonator waveform conversion module 2630 may include a data encoding and transmitting circuit 2631, a data decoding receiving circuit 2632, and a data interface 2633, as shown in FIG.
  • the central processing unit 262 transmits the data to be transmitted to the data encoding and transmitting circuit 2631 via the data interface 2633.
  • the data encoding and transmitting circuit 2631 encodes the data to be transmitted and outputs the data to the upper communication module 23; the data decoding and receiving circuit 2632 receives the communication module 23
  • the transmitted data to be received is decoded, and then the data to be received is decoded and sent to the central processing unit 262 via the data interface 2633. In this way, two-way data interaction between the upper communication module 23 and the control module 26 is achieved.
  • the input and output waveforms of the initiator waveform conversion module 2630 can be seen in FIG. 37; when the data decoding is received, the input and output waveforms of the initiator waveform conversion module 2630 can be seen in FIG.
  • the data interface 2633 in the initiator waveform conversion module 2630 can take the form of a serial port, such as RS485, RS232, and the like.
  • the data encoding and transmitting circuit 2631 in the initiator waveform converting module 2630 can perform data encoding by means of frequency modulation.
  • the data decoding receiving circuit 2632 may further include a sampling circuit 2634, an amplifier 2635, a comparator 2636, and a signal sampling circuit 2637, as shown in FIG.
  • the sampling circuit 2634 samples the data sent from the upper communication module 23, and the sampled data is amplified by the amplifier 2635 and output to the comparator 2636, which is used to convert the analog signal into a digital signal and then sent to the signal sampling circuit. 2637 processing, thus implementing the data decoding and receiving process of the initiator waveform conversion module 2630.
  • the sampling circuit 2634 can be taken as a coil.
  • the upper communication module 23 in the electronic detonator encoder 20 of the present invention may include an upper communication power supply circuit 230, an isolation modulation circuit 231, and an isolation demodulation circuit 232, as shown in FIG. 14 or FIG.
  • the pair of input terminals 50 of the upper communication power supply circuit 230 lead to the outside of the upper communication module 23, and are respectively connected to the electronic detonator initiator 10 to form the initiator communication line 80.
  • the upper communication power supply circuit 230 further has one end ground 12, and the other end of the upper communication power supply circuit 230 is connected to the isolation demodulation circuit 232 and the isolation modulation circuit 231 to supply power to the two circuits; the other end of the upper communication power supply circuit 230 Connected to the isolation modulation circuit 231.
  • the isolation modulation circuit 231 and the isolation demodulation circuit 232 each have a common ground 12 at one end, and each end has a common ground 11 at each end.
  • the remaining ends of the isolated modulation circuit 231 are coupled to the control module 26 for receiving data transmitted by the control module 26.
  • the isolation demodulation circuit 232 is also coupled to the control module 26 to transmit data to the control module 26.
  • the isolation demodulation circuit 232 also has one end connected to the operating voltage output terminal 1 of the power management module 22, and the remaining terminals to the outside of the upper communication module 23, connected to the electronic detonator detonator 10, and receiving data transmitted by the detonator 10.
  • the isolation demodulation circuit 232 is connected one-to-one by a pair of different branches to a pair of initiator communication lines 80 led by the electronic detonator initiator 10; Correspondingly, the isolation demodulation circuit 232 is only coupled to one of a pair of initiator communication lines 80.
  • the energy transmitted to the encoder 20 by the detonator 10 is supplied with power to the isolation demodulation circuit 232, thereby avoiding the external power supply for the isolation demodulation circuit 232. Inconvenience helps simplify circuit design.
  • the cooperation of the isolation modulation circuit 231 and the isolation demodulation circuit 232 achieves signal transmission and electrical isolation between the initiator 10 and the encoder 20.
  • the above-mentioned upper communication power supply circuit 230 may further include a rectifying bridge circuit 233, a backflow prevention circuit 234, a current limiting circuit 236, and a storage circuit 235, as shown in FIG. 16-1.
  • the pair of input ends of the rectifier bridge circuit 233 constitute a pair of input terminals 50 of the upper communication power supply circuit 230.
  • the forward output of the rectifier bridge circuit 233 is coupled to the anode of the tank circuit 235 via a backflow prevention circuit 234 and a current limiting circuit 236.
  • the anode of the tank circuit 235 is simultaneously connected to the isolation modulation circuit 231 and the isolation demodulation circuit 232.
  • the forward output terminal of the rectifier bridge circuit 233 also leads to the outside of the upper communication power supply circuit 230 and is directly connected to the isolation modulation circuit 231.
  • the forward output terminal of the rectifier bridge circuit 233 is connected to the anode of the tank circuit 235 via the backflow prevention circuit 234 and the current limiting circuit 236, and charges the tank circuit 235.
  • the energy storage circuit 235 is configured to store the energy transmitted by the initiator 10 to supply power to the isolation demodulation circuit 232.
  • the current limiting circuit 236 serves to prevent an impact of the excessively large charging current of the encoder 20 connected to the initiator 10 on the initiator 10.
  • the backflow prevention circuit 234 is used to isolate the energy storage circuit 235 from the isolation modulation circuit 231 to prevent the current limiting circuit 236 from consuming energy in the energy storage circuit 235 when the isolation modulation circuit 231 performs modulation.
  • the backflow prevention circuit 234 can be taken as a diode 237
  • the current limiting circuit 236 can be taken as a resistor 238, and the energy storage circuit 235 can be taken as a storage capacitor 239, as shown in FIG. 16-2.
  • the above-described isolation modulation circuit 231 may include a resistor 2311, a PMOS transistor 2313, and an optocoupler isolation switch 2314, as shown in FIG.
  • the source of the PMOS transistor 2313 and the substrate are commonly connected to the outside of the isolation modulation circuit 231, and are connected to the forward output terminal of the rectifier bridge circuit 233 in the upper communication power supply circuit 230.
  • the drain of the PMOS transistor 2313 is grounded 12, and the gate is connected to one end of the resistor 2311 and the port 2317 of the optocoupler isolation switch 2314.
  • the other end of the resistor 2311 and the port 2318 of the optocoupler isolation switch 2314 are commonly connected to the anode of the tank circuit 235 in the upper communication power supply circuit 230.
  • the port 2319 of the optocoupler isolation switch 2314 leads to the outside of the isolation modulation circuit 231 and is connected to the control module 26.
  • the optocoupler isolating switch 2314 also has a port ground 12 and the remaining port
  • the isolation modulation circuit 231 When the isolation modulation circuit 231 is in operation, the data sent by the control module 26 is loaded onto the optocoupler isolation switch 2314, causing the optocoupler isolation switch 2314 to be turned on and off, thereby causing the PMOS transistor 2313 to be turned on and off, which will cause the detonator.
  • the change in load on the communication line 80 causes a change in current on the detonator communication line 80, thereby producing a modulated current signal that the encoder 20 returns to the initiator 10.
  • the isolation modulation circuit 231 may further include a resistor 2315 and a resistor 2316 on the basis of the embodiment shown in FIG. 17, as shown in FIG.
  • the resistor 2315 is connected in series between the port 2318 of the optocoupler isolation switch 2314 and the control module 26; the resistor 2316 is connected in series between the drain of the PMOS transistor 2313 and the ground 12.
  • the resistor 2315 is a current limiting resistor for limiting the current driving the optocoupler isolation switch 2314 to prevent the current from excessively burning the drive circuit of the optocoupler isolation switch 2314.
  • the resistor 2316 is a load resistor for the purpose of current limiting.
  • the optocoupler isolating switch 2314 can be implemented by using the LED, the diode and the NPN tube shown in FIG. 17 or FIG. 18, and can also be implemented by using an optical relay, such as a 6N136 type optocoupler isolating switch.
  • isolation modulation circuit 231 can also be simply replaced by a driver or a MOS transistor to achieve a similar function.
  • the above-mentioned isolation demodulation circuit 232 can be taken as a magnetoelectric isolation module 2320, as shown in FIG.
  • a photocoupler or a transformer can be used as the above-mentioned isolation demodulation circuit to realize signal transmission and electrical isolation.
  • a commonly used optocoupler, its working principle can be described as: the light-emitting element converts the electrical signal into an optical signal, and after the photosensitive element senses the optical signal, the optical signal is converted into an electrical signal output. This achieves both electrical isolation and signal transmission.
  • the drawback of using such a photocoupler is that the operation of the light-emitting elements in the driving optocoupler requires a large current supply, which leads to excessive current consumption on the communication line, which in turn leads to a limitation of the load capacity of the system.
  • This defect can be improved by using a magnetoelectric isolation module constructed using the principle of a transformer.
  • the magnetoelectric isolation module 2320 shown in FIG. 19 may further include a single signal driving circuit 2321, a transformer isolation circuit 2322, and a reduction circuit 2323, as shown in FIG.
  • the transformer isolation circuit 2322 is further composed of a primary side 501 and a secondary side 502, as shown in FIG. 22 or FIG.
  • One end of the single signal driving circuit 2321 is connected to one of the pair of initiator communication lines 80 extending from the electronic detonator initiator 10, and one end is connected to the positive pole of the energy storage circuit 235 of the upper communication power supply circuit 230, and one end is grounded 12, and the rest is One end is connected to one end of the primary side 501.
  • the other end of the primary side 501 is grounded 12.
  • the reduction circuit 2323 has one end connected to the operating voltage output terminal 1 of the power management module 22, and the other end connected to the control module 26.
  • the magnetoelectric isolation module 2320 is used to form an isolation demodulation circuit 232. Based on the working principle of the transformer, a transformer isolation circuit 2322 is designed to serve as a signal transmission and electrical isolation.
  • the beneficial effects of this implementation are:
  • the transformer isolation circuit 2322 is used to realize the signal transmission from the initiator 10 to the encoder 20 and the electrical isolation between the two, which reduces the power consumption of the encoder 20, thereby facilitating the improvement of the load capacity of the initiator 10.
  • the single signal drive circuit 2321 operates under the power supply to the upper communication power supply circuit 230.
  • the single signal driving circuit 2321 is directly connected to the initiator communication line 80 of the initiator 10, and the signal transmitted from the initiator 10 to the encoder 20 is transmitted to the primary side 501 of the transformer isolation circuit 2322, thereby realizing signal transmission.
  • the magnetoelectric isolation module 2320 constituting the above-described isolation demodulation circuit 232 may include a dual signal drive circuit 2324, a transformer isolation circuit 2322, and a reduction circuit 2323, as shown in FIG.
  • the transformer isolation circuit 2322 is further composed of a primary side 501 and a secondary side 502, as shown in FIG. 22 or FIG.
  • the two ends of the dual signal driving circuit 2324 are respectively connected to the initiator communication line 80 extending from the electronic detonator 10; the double signal driving circuit 2324 has one end connected to the positive pole of the energy storage circuit 235 and one end grounded 12.
  • Both ends of the primary side 501 are respectively connected to the dual signal driving circuit 2324; one end of the secondary side 502 is grounded 11 together with the reduction circuit 2323; the other end of the secondary side 502 is connected to the reduction circuit 2323.
  • the reduction circuit 2323 has one end connected to the operating voltage output terminal 1 of the power management module 22, and the other end connected to the control module 26.
  • the single signal drive circuit 2321 is only connected to one of the initiator communication lines 80, and therefore, only when the initiator 10 is coded
  • the transmitter 20 transmits a signal in a differential form
  • the initiator 10 and the encoder 20 can be connected and communicated in a non-polar manner; and if the initiator 10 transmits a signal to the encoder 20 in other signal forms, the encoder 20 and the initiator cannot be implemented.
  • the non-polar connection between 10 because the single signal drive circuit 2321 must be connected to the signal line in the initiator communication line 80 to normally receive the signal change.
  • the dual signal driving circuit 2324 is used instead of the single signal driving circuit 2321, and the dual signal driving circuit 2324 is simultaneously connected to the pair of initiator communication lines 80 of the initiator 10, respectively, and output to the transformer isolation. Both ends of the primary side 501 of the circuit 2322.
  • the isolated demodulation circuit 232 thus constructed does not require a signal form transmitted from the initiator 10. Even if the initiator 10 is not a differential signal, the encoder 20 can correctly receive and extract the transmitter 10 in a non-polarity manner. The incoming signal, thereby enabling signal transmission from the initiator 10 to the encoder 20.
  • the single signal/dual signal driving circuit can be composed of a driver.
  • the single signal driving circuit 2321 can be constituted by a driver 401. As shown in FIG. 39, the signal input terminal 4011 of the driver 401 is connected to the electronic detonator initiator 10, and the signal output terminal 4012 is connected to one end of the primary side of the transformer isolation circuit 2322. The power input of 401 is connected to the upper communication power supply circuit 230, and the other end is grounded 12.
  • the dual signal driving circuit 2324 can be composed of two drivers, namely the driver 402 and the driver 403 shown in FIG. 40, and the signal inputs 4021 and 4031 of the two drivers are respectively connected to the electronic detonator initiator 10, the signal output terminal.
  • the driver 401/402/403 drives the coil of the primary side 501 of the transformer.
  • the coil consumes a certain amount of energy which is only related to the drive current of the driver, regardless of the drive capability of the initiator 10. Since the power consumption of the driver is small, the current consumption of the initiator 10 by the encoder 20 can be effectively reduced, thereby improving the load capacity of the initiator 10.
  • the drive can be selected as a forward drive or a reverse drive, and optional models include the HEF40106.
  • the primary side 501 of the transformer isolation circuit 2322 described above preferably consists of a main winding 503, a capacitor 505 and a resistor 506 connected in series between the two ends of the primary side 501, see FIG. 22 or FIG.
  • one end of the main coil 503 directly leads to the outside of the transformer isolation circuit 2322, and one end of the primary side 501 is connected to the chirp signal driving circuit 2321; the other end of the main coil 503 is connected via the capacitor 505 and the resistor 506.
  • the other end of the primary side 501 is formed, and the ground 12 is formed.
  • FIG. 22 In the embodiment shown in FIG.
  • one end of the main coil 503 leads to the outside of the transformer isolation circuit 2322 via the capacitor 505 to form one end of the primary side 501; the other end of the main coil 503 leads to the outside of the transformer isolation circuit 2322 via the resistor 506, forming the original The other end of the side 501; the two ends of the primary side 501 are respectively connected to the dual signal driving circuit 2324.
  • the capacitor 505 functions as a DC-DC alternating current, so that when the encoder 20 and the initiator 10 are in a non-communication state, the current consumption of the main coil 503 can be avoided.
  • the resistor 506 acts as a current limiting device, which is beneficial to improving the induced waveform outputted by the secondary side 502 of the transformer isolation circuit 2322, so that the induced waveforms tend to be consistent.
  • the secondary side 502 of the transformer isolation circuit 2322 can be composed of a secondary coil 504 and a resistor 507, as shown in FIG.
  • One end of the secondary winding 504 is connected to one end of the resistor 507, and is connected to the outside of the transformer isolation circuit 2322 to be connected to the reduction circuit 2323; the other end of the secondary winding 504 is grounded 11 to the other end of the resistor 507.
  • the secondary side 502 is composed only of the secondary winding 504, when the signal change of the primary side 501 of the transformer isolation circuit 2322 is transmitted to the secondary side 502 of the isolation circuit, the input impedance of the reduction circuit 2323 is large, and the secondary side 502 is generated. The induced electromotive force will not be released.
  • a resistor 507 is connected in parallel at both ends of the secondary coil 504, and the resistor 507 is grounded 11, so that the induced electromotive force of the secondary side 502 is discharged, and the signal waveform is shaped by the venting process of the induced electromotive force, thereby finally outputting the output.
  • the pulse signal sampled by the reduction circuit 2323.
  • the secondary side 502 can also be formed by the secondary winding 504, the resistor 508, and the resistor 509, as shown in FIG.
  • One end of the secondary coil 504 is connected to the reduction circuit 2323 in common with the resistor 508; the other end of the secondary coil 504 and the resistor 509 are connected to the reduction circuit 2323 via another path; the intermediate tap 510 of the secondary coil 504, the other end of the resistor 508, and the resistor 509 The other end is commonly grounded 11.
  • this scheme can simplify the signal encoding and decoding design, and can also simplify the design of the initiator waveform conversion module 2630 in the encoder 20.
  • this solution can generate two corresponding sensing waveforms, so that the signal receiving is more accurate, which further meets the needs of precise timing of the detonating system.
  • the embodiment of the primary side 501 of the transformer isolation circuit 2322 of Figures 22 and 23 can be implemented in any combination with the two embodiments of the secondary side 502 without affecting the implementation of the technical objects of the present invention.
  • the lower communication module 24 in the electronic detonator encoder 20 of the present invention may include a high voltage switch 243 and a lower communication signal processing module 240, as shown in FIG.
  • the control terminal of the high voltage switch 243 is connected to the control module 26.
  • the first pair of terminals 31 and 31' of the high voltage switch 243 are connected to the electronic detonator initiator 10, respectively, and the second pair of terminals 32 and 32' are connected one to one to the pair of output terminals 60 of the pair of communication signal processing modules 240, respectively.
  • the third pair of terminals 33 and 33' respectively lead to the outside of the electronic detonator encoder 20 to form a signal bus 40.
  • the lower communication signal processing module 240 is also connected to the control module 26 at one end for data interaction with the control module 26.
  • the lower communication signal processing module 240 further has one end ground 11 and the remaining two ends of the lower communication signal processing module 240 are respectively connected to the communication voltage output terminal 2 and the working voltage output terminal 1 of the power management module 22 one-to-one.
  • the electronic detonator encoder 20 passes through the pair of communication modules 24 and The electronic detonator 30 performs data interaction; when the high voltage switch 243 is switched to the branch connected to the electronic detonator initiator 10, that is, the branches 31-33 and 31'-33' are turned on, the electronic detonator 10 is directly directed The detonating storage capacitor in the electronic detonator 30 is charged.
  • the high voltage switch 243 is designed in the lower communication module 24 in order to switch the higher detonation voltage output from the detonator 10 to the signal bus 40, and the detonator 10 directly charges the detonation storage capacitor in the electronic detonator 30.
  • the high voltage switch 243 is closed to the branch connected to the down communication signal processing module 240 when preparing for network connection, detection, etc., and the control command of the control module 26 is only completed after all the initiation preparations are completed.
  • the lower closure to the branch connected to the electronic detonator detonator 10 ensures that the communication process of the encoder 20 and the electronic detonator network is absolutely safe during the initiation of the detonation.
  • the lower communication signal processing module 240 can be implemented by various technical solutions.
  • the down communication signal processing module 240 can include a down communication signal modulation module 241 and a down communication signal demodulation module 242.
  • the connection relationship can be embodied in the following two ways:
  • the lower communication signal modulation module 241 and the lower communication signal demodulation module 242 each have one end connected to the working voltage output terminal 1 of the power management module 22, one end of which is connected to the control module. 26, each has one end grounded 11.
  • a modulation signal output terminal 5 of the lower communication signal modulation module 241 directly leads to the outside of the lower communication signal processing module 240, and constitutes one of a pair of output terminals of the lower communication signal processing module 240, that is, the output terminal 60.
  • the lower communication signal modulation module 241 and the lower communication signal demodulation module 242 are connected in series through the remaining terminals in the communication voltage output terminal 2 of the power management module 22 and the pair of output terminals of the downlink communication signal processing module 240, that is, the output. Between the terminals 60', specifically, the communication voltage input terminal 4 of the lower communication signal modulation module 241 is directly connected to the communication voltage output terminal 2 of the power management module 22, and the other modulation signal output of the lower communication signal modulation module 241 is output.
  • the terminal 5' is connected to the outside of the lower communication signal processing module 240 via the lower communication signal demodulation module 242, and constitutes a pair of output terminals of the lower communication signal processing module 240, that is, the output terminal 60', as shown in FIG.
  • the communication voltage input terminal 4 of the lower communication signal modulation module 241 is connected to the communication voltage output terminal 2 of the power management module 22 via the down communication signal demodulation module 242, and the other modulation signal output of the lower communication signal modulation module 241 is output.
  • the terminal 5' directly leads to the outside of the lower communication signal processing module 240, and constitutes a pair of output terminals of the lower communication signal processing module 240, that is, the output terminal 60', such as 26 FIG.
  • the lower communication signal modulation module 241 and the lower communication signal demodulation module 242 each have one end connected to the working voltage output terminal 1 of the power management module 22, one end of which is connected to the control module 26, and Each end has a ground 11 .
  • the communication voltage input terminal 4 of the lower communication signal modulation module 241 is connected to the communication voltage output terminal 2 of the power management module 22.
  • the two modulated signal output terminals 5 and 5' of the lower communication signal modulation module 241 lead to the outside of the lower communication signal processing module 240, forming a pair of output terminals 60 and 60' of the lower communication signal processing module 240.
  • the remaining ends of the lower communication signal modulation module 241 are connected to the lower communication signal demodulation module 242.
  • the lower communication signal processing module 240 may further include a transceiver switching switch 244 on the basis of the embodiments shown in FIGS. 25-27, as shown in FIG.
  • the specific connection relationship is described as follows:
  • the lower communication signal modulation module 241 and the lower communication signal demodulation module 242 each have one end connected to the working voltage output terminal 1 of the power management module 22, one end of which is connected to the communication voltage output terminal 2 of the power management module 22;
  • the modules also each have one end connected to the control module 26, one end of which has a ground 11 .
  • a sampling end 18 of the down communication signal demodulation module 242 is coupled to the first end 41 of the transceiving switch 244.
  • the two modulated signal output terminals 5 and 5' of the lower communication signal modulation module 241 are connected to the second end 42 of the transceiving switch 244, and the other directly leads to the outside of the down communication signal processing module 240 to form a communication.
  • the third end 43 of the transceiver switching switch 244 leads to the outside of the pair of communication signal processing modules 240, and constitutes a pair of output terminals of the lower communication signal processing module 240, that is, the output terminal 60.
  • the control terminal of the transceiving switch 244 is connected to the control module 26.
  • the downlink communication signal processing module 240 is further designed based on the embodiments shown in FIG. 25 to FIG. 27, and may include a downlink communication signal modulation module 241, a downlink communication signal demodulation module 242, and a transceiver switching switch 245. As shown in Figure 29.
  • the lower communication signal modulation module 241 and the lower communication signal demodulation module 242 each have one end connected to the working voltage output terminal 1 of the power management module 22, one end of each is connected to the communication voltage output terminal 2 of the power management module 22;
  • the two modules also have one end connected to the control module 26, one end of which is grounded 11.
  • a sampling end 18 of the lower communication signal demodulating module 242 and one end of the ground 11 are respectively connected to the first pair of terminals 51 and 51' of the transceiving switching switch 245.
  • the two modulated signal output terminals 5 and 5' of the lower communication signal modulation module 241 are respectively connected to the second pair of terminals 52 and 52' of the transceiving switch 245.
  • the third pair of terminals 53 and 53' of the transceiving switch 245 are respectively turned to the outside of the down communication signal processing module 240 to constitute a pair of output terminals 60 and 60' of the down communication signal processing module 240.
  • the control terminal of the transceiving switch 245 is connected to the control module 26.
  • the lower communication signal modulation module 241 is configured to load the data output by the control module 26 into the signal bus 40 outputted to the electronic detonator 30 in the form of a voltage change.
  • the data transmission to the electronic detonator 30 is used to extract the current change information of the electronic detonator 30 loaded onto the signal bus 40 in the form of a current change, and sent to the control module 26 to implement the electronic detonator 30. Data reception. This achieves two-way communication between the electronic detonator encoder 20 and the electronic detonator 30.
  • a transceiving switch is designed in the lower communication signal processing module 240, such as the embodiment shown in FIG. 28 and FIG. 29, to switch between the signal modulation transmission process and the signal demodulation reception process.
  • the process can be carried out independently.
  • the transceiver switching switch 244 is different from the transceiver switching switch 245.
  • the embodiment shown in FIG. 29 can completely separate the signal modulation transmission process and the signal demodulation and reception process, which is more advantageous for system communication.
  • the lower communication signal modulation module 241 in the embodiment shown in FIGS. 25 to 29 can be implemented by the technical solutions disclosed in the patent application documents 200810172410.9 and 200920000509.0.
  • the lower communication signal modulation module 241 can include two drive modules 2411 and 2412, two electronic switches 2413 and 2414, and an inverter 2415, as shown in FIG.
  • the two driving modules 2411 and 2412 are connected in common to the operating voltage output terminal 1 of the power management module 22, and the two driving modules 2411 and 2412 are also commonly grounded 11 with the inverter 2415.
  • the signal input of the inverter 2415 is connected to the control module 26 in common with the signal input of the drive module 2411, and the signal output of the inverter 2415 is connected to the signal input of the drive module 2412.
  • the signal output of the drive module 2411 is coupled to the control terminal of the electronic switch 2413, and the signal output of the drive module 2412 is coupled to the control terminal of the electronic switch 2414.
  • An input end of the electronic switch 2413, an input end of the electronic switch 2414, the remaining end of the driving module 2411, and the remaining end of the driving module 2412 are connected together, and jointly lead to the outside of the communication signal modulation module 241, forming a pair
  • the communication voltage input terminal 4 of the communication signal modulation module 241 is connected to the communication voltage output terminal 2 of the power management module 22.
  • the other input of the electronic switch 2413 is coupled to the other input of the electronic switch 2414 and is commonly coupled to the down communication signal demodulation module 242 external to the lower communication signal modulation module 241.
  • the outputs of the two electronic switches 2413 and 2414 lead to the outside of the lower communication signal modulation module 241, respectively, to form two modulated signal outputs 5 and 5' of the lower communication signal modulation module 241.
  • the above-mentioned lower communication signal modulation module 241 in the embodiment shown in FIGS. 25 to 29 can also be implemented by using the chip ADG453 or ADG451 or the like.
  • the lower communication signal demodulation module 242 in the above embodiment shown in FIGS. 25-29 may include a signal sampling circuit 2420 and a signal conditioning circuit 2421, as shown in FIG.
  • One end of the signal conditioning circuit 2421 is connected to the working voltage output end 1 of the power management module 22, one end is connected to the control module 26, and the other end is connected to the signal sampling circuit 2420.
  • the remaining two ends of the signal sampling circuit 2420 form the sampling terminals 17 and 18 of the down communication signal demodulation module 242, leading to the outside of the down communication signal demodulation module 242.
  • the signal sampling circuit 2420 is configured to extract current change information loaded on the signal bus 40 by the electronic detonator network, thereby obtaining a signal transmitted from the direction of the electronic detonator 30; the signal conditioning circuit 2421 is configured to process the analog signal output by the signal sampling circuit 2420. It is converted to a digital signal recognizable by the control module 26.
  • the signal sampling circuit 2420 can be taken as a resistor. At this time, the two ends of the resistor respectively constitute the sampling ends 17 and 18, and the signal conditioning circuit 2421 obtains the sampled analog signal from both ends of the resistor. Sampling with a resistor requires a differential amplifying circuit to extract the signal across the sampling resistor in signal conditioning circuit 2421, and then restore the signal to a digital signal via a comparator.
  • the implementation of a sampling circuit using resistors is simple and straightforward.
  • the resistor is a passive device that does not generate additional noise during sampling. In the embodiment shown in Figures 25, 26 and 27, the sampling resistor will always be connected in the communication loop, which will introduce a certain voltage drop, while the embodiment shown in Figures 28 and 29 will modulate the transmission process.
  • the signal demodulation reception process is independent, and the sampling resistor is only connected in series to the communication loop during the signal demodulation reception process. Therefore, the present embodiment is more applicable to the lower communication signal processing module 240 shown in FIGS. 28 and 29.
  • the signal sampling circuit 2420 can also be taken as an electromagnetic coupler, as shown in FIG.
  • the two ends of the primary coil 155 of the electromagnetic coupler are respectively turned to the outside of the lower communication signal demodulation module 242 to form the sampling ends 17 and 18 of the lower communication signal demodulation module 242.
  • the secondary coil 156 of the electromagnetic coupler is coupled to a signal conditioning circuit 2421.
  • the center tap of the electromagnetic coupler is grounded 11.
  • the electromagnetic coupler is essentially an inductor that is connected in the communication loop, and it extracts the change in current on the signal bus 40.
  • the inductor is an energy storage device.
  • the signal conditioning circuit 2421 can include a filter circuit 2422, an amplification circuit 2423, and a comparison circuit 2424, as shown in FIG.
  • One end of the filter circuit 2422 is connected to the amplifying circuit 2423, and the other end is connected to the signal sampling circuit 2420.
  • the amplifying circuit 2423 and the comparing circuit 2424 are respectively connected to the working voltage output terminal 1 of the power management module 22, the remaining end of the amplifying circuit 2423 is connected to the comparing circuit 2424, and the remaining end of the comparing circuit 2424 is connected to the control module 26.
  • the filter circuit 2422 is coupled to the signal sampling circuit 2420 for receiving an analog signal sent from the signal sampling circuit 2420 and extracted from the direction of the electronic detonator 30 on the signal bus 40, and providing an analog signal representing the useful information that is filtered out of noise.
  • Amplifying circuit 2423 The comparison circuit 2424 converts the analog signal output from the amplification circuit 2423 into a digital signal for supply to the control module 26.
  • the comparison circuit 2424 described above may preferably be a hysteresis comparator to improve the anti-interference performance during signal conversion.
  • the signal conditioning circuit 2421 preferably includes two filter circuits 2422 and 2422', two amplification circuits 2423 and 2423', and two comparison circuits 2424 and 2424', as shown in FIG. Shown.
  • Amplifying circuits 2423 and 2423' and comparing circuits 2424 and 2424' are connected to the operating voltage output terminal 1 of the power management module 22, respectively.
  • Filter circuits 2422 and 2422' are respectively coupled to both ends of secondary winding 156 in signal sampling circuit 2420, and filter circuits 2422 and 2422' are also each connected to amplification circuits 2423 and 2423', respectively.
  • the amplifying circuits 2423 and 2423' also each have one end connected to the comparing circuits 2424 and 2424', respectively, and the remaining ends of the comparing circuits 2424 and 2424' are connected to the control module 26, respectively.

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Abstract

La présente invention concerne un encodeur de détonateur électronique (20), deux extrémités de l'encodeur (20) étant raccordées à un initiateur de détonateur électronique (10) et ses deux autres extrémités s'étendant à l'extérieur jusqu'à un bus de signal (40), et au moins un détonateur électronique (30) étant raccordé en parallèle entre des bus de signal (40). L'encodeur (20) comprend une source d'alimentation (21), un module de gestion de source d'alimentation (22), un module de communication vers le haut (23), un module de communication vers le bas (24) et un module de commande (26). L'encodeur de détonateur électronique (20) procède à un échange de données avec l'initiateur de détonateur électronique (10) par le biais du module de communication vers le haut (23) et procède à un échange de données avec le détonateur électronique (30) par le biais du module de communication vers le bas (24). L'encodeur (20) n'est pas en mesure de fournir une tension d'initiation à un réseau de détonateur électronique, l'initiateur de détonateur électronique (10) est raccordé directement au module de communication vers le bas (24), et le module de communication vers le bas (24) fournit au détonateur électronique (30) la tension d'initiation produite par l'initiateur (10) pour le chargement une fois la préparation de l'initiation terminée. L'encodeur de détonateur électronique réalise non seulement la communication entre l'encodeur, l'initiateur et le détonateur électronique dans le réseau d'initiation, mais crée également une sécurité intrinsèque lorsque l'encodeur communique avec le détonateur électronique.
PCT/CN2012/077165 2011-06-22 2012-06-19 Encodeur de détonateur électronique WO2012175012A1 (fr)

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EA201400049A EA025654B1 (ru) 2011-06-22 2012-06-19 Кодирующее устройство для электронного детонатора
AU2012272289A AU2012272289A1 (en) 2011-06-22 2012-06-19 Electronic detonator encoder
ZA2014/00530A ZA201400530B (en) 2011-06-22 2014-01-22 Electronic detonator encoder

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CN201110169456.7 2011-06-22
CN201110169456.7A CN102840800B (zh) 2011-06-22 2011-06-22 电子雷管编码器

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Publication number Priority date Publication date Assignee Title
US10260851B2 (en) 2015-03-04 2019-04-16 Davey Bickford System for controlling at least one electronic detonator

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CN102840800B (zh) 2017-09-22
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