CN112393653A - Electronic detonator blasting control system for improving anti-interference performance - Google Patents
Electronic detonator blasting control system for improving anti-interference performance Download PDFInfo
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- CN112393653A CN112393653A CN202011102492.7A CN202011102492A CN112393653A CN 112393653 A CN112393653 A CN 112393653A CN 202011102492 A CN202011102492 A CN 202011102492A CN 112393653 A CN112393653 A CN 112393653A
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- module
- switch
- electronic detonator
- blasting
- busbar
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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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C19/00—Details of fuzes
- F42C19/08—Primers; Detonators
- F42C19/12—Primers; Detonators electric
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Abstract
The invention discloses an electronic detonator blasting control system for improving anti-interference performance, which comprises an exploder and a plurality of electronic detonator modules, wherein each electronic detonator module is connected with the exploder in a parallel connection mode, each electronic detonator module is provided with a switch structure, and when the electronic detonator modules receive a blasting instruction sent by the exploder and start to perform blasting, the electronic detonator modules control the switch structures to be in a closed state, so that the electronic detonator modules, the exploder and other electronic detonator modules are in a physical isolation state. The invention solves the problem of electronic detonator misfire caused by electric signal interference in the process of receiving a detonation instruction and executing detonation when used in complex scenes such as small sections, metal mines, underground and tunnels, and the like, and greatly improves the anti-interference performance and safety of the electronic detonator.
Description
Technical Field
The invention relates to an electronic detonator, in particular to an electronic detonator blasting control system for improving anti-interference performance.
Background
Electronic detonators, also known as digital electronic detonators, digital detonators or industrial digital electronic detonators, generally adopt an electronic detonator blasting control system to control the electronic detonators to blast.
The electronic detonator explosion control system basically comprises two parts, namely a detonator and an exploder, wherein a plurality of electronic detonator modules are connected with the exploder in a parallel connection mode, and the exploder can simultaneously control a plurality of electronic detonators to work.
The electronic detonator is generally blasted after receiving a detonation signal of the initiator, signal transmission between the electronic detonator and the initiator is generally through wired transmission, but when the electronic detonator is used in complex working environments such as small sections, metal mines, underground wells, tunnels and the like, the signal transmission between the electronic detonator and the initiator is often interfered, so that the electronic detonator has the problem of explosion rejection and is not beneficial to the safety of the electronic detonator.
Disclosure of Invention
The invention aims to solve the problems and provides an electronic detonator blasting control system with improved anti-interference performance.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the electronic detonator blasting control system comprises an initiator and a plurality of electronic detonator modules, wherein each electronic detonator module is connected with the initiator in a parallel connection mode, each electronic detonator module is provided with a switch structure, and after the electronic detonator modules receive initiation instructions sent by the initiator and start to perform initiation, the electronic detonator modules control the switch structures to be in a closed state, so that the electronic detonator modules, the initiator and other electronic detonator modules are in a physical isolation state.
In a preferred embodiment of the invention, the initiator is connected with a first bus bar and a second bus bar, the length of the first bus bar and the length of the second bus bar are more than 500m, each electronic detonator module is connected with the first bus bar and the second bus bar through a branch line, and the length of the branch line is 3 m-25 m.
In a preferred embodiment of the invention, the switch arrangement comprises a first switch having two ends connected to ground and to the first busbar, respectively, and a second switch having two ends connected to ground and to the second busbar, respectively, the first and second busbars being shorted to ground when the first and second switches are in a closed state.
In a preferred embodiment of the present invention, the electronic detonator module includes a chip, a filter capacitor, an energy storage capacitor, a detonator, and a bridge wire resistor, the chip includes a power module, a communication module, a charge-discharge module, a control module, a function detection module, and an ignition module, the power module and the communication module are respectively connected to a first bus and a second bus, the charge-discharge module is connected to the power module, the control module is respectively connected to the power module, the communication module, a first switch, a second switch, and a charge-discharge module, the function detection module is connected to the control module, the ignition module is respectively connected to the control module and the detonator, the filter capacitor is connected to the power module, the energy storage capacitor is respectively connected to the charge-discharge module and the bridge wire resistor, and the bridge wire resistor is connected to the detonator.
In a preferred embodiment of the present invention, the chip further includes an NVM memory module, and the NVM memory module is connected to the control module.
In a preferred embodiment of the present invention, the chip further includes a POR power-on reset module, and the POR power-on reset module is connected to the control module.
In a preferred embodiment of the present invention, the chip further includes an OSC clock module, and the OSC clock module is connected to the control module.
In a preferred embodiment of the invention, the initiator is provided with an authentication module.
In a preferred embodiment of the present invention, the switch structure is an NMOS switch or a PMOS switch or a CMOS switch or an NMOS switch with current-limiting and pull-down resistor or a PMOS switch with current-limiting and pull-up resistor or an NPN switch or a PNP switch or a composite switch of NPN and PNP.
The invention has the beneficial effects that:
the invention solves the problem of electronic detonator misfire caused by electric signal interference in the process of receiving a detonation instruction and executing detonation when used in complex scenes such as small sections, metal mines, underground and tunnels, and the like, and greatly improves the anti-interference performance and safety of the electronic detonator.
In addition, the invention has simple structure, can be directly arranged on the existing blasting control system, does not need to redesign the blasting control system, and saves the cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the connection of an initiator to an electronic detonator module;
FIG. 2 is a schematic structural view of an electronic detonator module;
FIG. 3 is a schematic diagram of an NMOS switch;
FIG. 4 is a schematic diagram of a PMOS switch;
FIG. 5 is a schematic diagram of a CMOS switch;
FIG. 6 is a schematic diagram of an NMOS switch with current limiting and pull-down resistors;
FIG. 7 is a schematic diagram of a PMOS switch with current limiting and pull-up resistors;
FIG. 8 is a schematic diagram of an NPN switch;
FIG. 9 is a schematic diagram of a PNP switch
Fig. 10 is a schematic structural diagram of a composite switch of NPN and PNP.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below.
Referring to fig. 1, the electronic detonator explosion control system for improving the anti-interference performance provided by the invention comprises an initiator 100 and a plurality of electronic detonator modules 200, wherein each electronic detonator module 200 is connected with the initiator 100 in a parallel connection manner, and the initiator 100 can simultaneously control each electronic detonator module 200 to work.
The connection mode of the initiator 100 and each electronic detonator module 200 may specifically be: the initiator 100 is connected with a first bus bar A and a second bus bar B, and each electronic detonator 200 module is connected with the first bus bar A and the second bus bar B through branch lines.
The number of the electronic detonator modules 200 can be more than 500, in order to ensure the safety of field blasting operators, the lengths of the first bus A and the second bus B are more than 500m, and meanwhile, the lengths of the electronic detonator modules 200 which are connected into the first bus A and the second bus B through branch lines can be 3 m-25 m according to different field conditions.
Referring to fig. 2, each electronic detonator module 200 is provided with a switch structure, and after the electronic detonator module receives a detonation instruction sent by the detonator 100, the electronic detonator module 200 controls the switch structure to be in a closed state, so that the electronic detonator module 200 is in a physical isolation state with the detonator 100 and other electronic detonator modules, thereby isolating interference signals possibly generated in the process of performing detonation.
The switch structure is specifically connected between the first bus a and the second bus B in series and the ground, and comprises a first switch S1 and a second switch S2, wherein two ends of the first switch S1 are respectively grounded and the first bus a, and two ends of the second switch S2 are respectively grounded and the second bus B, so that when the first switch S1 and the second switch S2 are in a closed state, the first bus a and the second bus B are just short-circuited to the ground, and at this time, the electronic detonator module 200 and the initiator 100 and other electronic detonator modules 300 are just in a physical isolation state.
The electronic detonator module 200 specifically comprises a chip 210, a filter capacitor C2, an energy storage capacitor C1, a detonating tube Q1 and a bridgewire resistor YT, wherein the chip 210 comprises a power module 220, a communication module 230, a charging and discharging module 240, a control module 250, a function detection module 260 and an ignition module 270.
The power module 220 and the communication module 230 are connected to a first bus a and a second bus B, respectively, which receive power and control signals provided by the initiator 100 via the first bus a and the second bus B, respectively.
The charging and discharging module 240 is connected with the power module 220, the control module 250 is respectively connected with the power module 220, the communication module 230, the first switch S1, the second switch S2 and the charging and discharging module 240, the function detection module 260 is connected with the control module 250, the ignition module 270 is respectively connected with the control module 250 and the squib Q1, the filter capacitor C2 is connected with the power module 220, the energy storage capacitor C1 is respectively connected with the charging and discharging module 240 and the bridgewire resistor YT, and the bridgewire resistor YT is connected with the squib Q1.
The communication module 230 is used for realizing information transmission between the control module 250 and the initiator 100, the control module 250 sends control information to the control module 250 through the communication module 230, the control module 250 performs corresponding operations according to the received information, and the control module 250 can also send the detected information to the initiator 100 through the communication module 230.
The control module 250 may control the energy storage capacitor C1 to charge or discharge and control the power supply module 220 to supply power to each power utilization module through the charging and discharging module 240.
The control module 250 can open the detonating tube Q1 through the ignition module 270, and the energy stored in the energy storage capacitor C1 is transmitted to the ground through the bridgewire resistor YT to complete the blasting.
The function detection module 260 is configured to detect the state of each module in the electronic detonator module 200 in real time, and send detection information to the control module 250, and the control module 250 feeds back the information to the initiator 100, so as to ensure that the electronic detonator module 200 is in a normal state before the initiator 100 sends a detonation instruction.
In the system, only when the control module 250 receives an initiation instruction of the initiator 100 and the function detection module 260 detects that the states of the modules in the electronic detonator module 200 are normal, the control module 250 starts to perform initiation and controls the first switch S1 and the second switch S2 to be closed, and otherwise, the first switch S1 and the second switch S2 are both controlled to be in an open state. Thus, the electronic detonator module 200 is not interfered when the detonation is executed, and the electronic detonator module 200 and the detonator 100 can normally transmit information and power before the detonation.
The first switch S1 and the second switch S2 may have a variety of different specific implementations, including: the circuit comprises an NMOS switch, a PMOS switch, a CMOS switch, an NMOS switch with a current limiting resistor and a pull-down resistor, a PMOS switch with a current limiting resistor and a pull-up resistor, an NPN switch, a PNP switch and a composite switch of NPN and PNP.
Referring to fig. 3-10, various specific implementations of the switch structure are as follows
(1) When the switch structure is an NMOS switch, the switch is turned on when the control signal ENN sent by the control module 250 is at a high level, and the switch is turned off when the ENN is at a low level;
(2) when the switch structure is a PMOS switch, the switch is turned on when the control signal ENP sent by the control module 250 is at a low level, and the switch is turned off when the ENP is at a high level;
(3) when the switch structure is a CMOS switch, the control signal ENN sent by the control module 250 is at a high level, and when ENP is at a low level, the switch is turned on; when the control signal ENN is at a low level and ENP is at a high level, the switch is turned off;
(4) when the switch structure is an NMOS switch with a current-limiting and pull-down resistor, the switch is turned on when the control signal ENN sent by the control module 250 is at a high level; in other states, the pull-down resistor R9 is grounded and the switch is open;
(5) when the switch structure is a PMOS switch with a current-limiting and pull-up resistor, the switch is turned on when the control signal ENP sent by the control module 250 is at a low level; in other states, the pull-up resistor R11 is connected with the power supply, and the switch is disconnected;
(6) when the switch structure is an NPN switch, and the control signal ENN sent by the control module 250 is at a high level, the NPN transistor QN is turned on, and the output Vout is shorted to the ground, which is equivalent to the switch off; when the ENN is in other states, the pull-down resistor R2 is grounded, the NPN transistor QN is turned off, and Vin is Vout, which is equivalent to the switch being turned on;
(7) when the switch structure is a PNP switch, when the control signal ENP sent by the control module 250 is at a low level, the PNP transistor QP is turned on, and Vin is Vout, which is equivalent to the switch conduction; when ENP is in other states, the pull-up resistor R5 is connected to Vin, and the PNP triode QP is disconnected, which is equivalent to the disconnection of the switch;
(8) when the switch structure is a composite switch of NPN and PNP, and the control signal ENN sent by the control module 250 is at high level, the NPN transistor QN is turned on, the base level of the PNP transistor QP is grounded, QP is turned on, Vin is Vout, which is equivalent to the switch being turned on, when ENN is in other state, the pull-down resistor R2 is grounded, the pull-up resistor R7 is connected to Vin, and the transistors QN and QP are both disconnected, which is equivalent to the switch being turned off.
The specific selection of the switch structure may be determined according to actual requirements, and the implementation manner of the switch structure is not limited to the above 8 manners, and may be implemented only by implementing the switch structure in which the electronic detonator module 200 can control the switch structure to be in the closed state after the electronic detonator module receives the initiation instruction sent by the initiator 100.
Referring to fig. 2, in addition, the chip 210 further includes an OSC clock block, a POR power-on reset block, and an NVM storage block.
The OSC clock module is connected to the control module 250 for providing a clock, the POR power-on reset module is connected to the control module 250 for providing a power-on reset signal, the NVM storage module is connected to the control module 250 for storing the critical information and status required by the chip 210, and the control module 250 may read the data stored in the NVM storage module and feed back the read data to the initiator 100.
The following is a specific working process of the present application:
the initiator 100 firstly sends a scanning broadcast instruction to each electronic detonator module 200 connected with the initiator, after each electronic detonator module 200 receives the scanning instruction, the communication module 230 in the chip 210 of each electronic detonator module 200 sends the processed data to the control module 250, the control module 250 reads the data of the NVM module and then transmits the data to the communication module 230, and the communication module 230 returns the data to the initiator 100 through the first bus A and the second bus B in a current feedback manner so as to confirm the key information of the electronic detonator module 200;
after confirming the key information of the electronic detonator module 200, the initiator 100 sends a series of instructions to verify the electronic detonator module and confirm the key state of each electronic detonator module 200.
After the key state of the electronic detonator module 200 is confirmed, the initiator 100 sends a charging instruction, the control module 250 in the chip 210 receives the charging instruction, controls the charging and discharging module 240 to charge the energy storage capacitor C1, and when the voltage of the energy storage capacitor C1 reaches an expected voltage value, the charging and discharging module 240 sends a charging completion signal to the control module 250 and stops charging;
after the initiator 100 receives the signals that all the electronic detonator modules 200 are charged, the initiator 100 sends initiation instructions, and after the control module 250 in the chip 210 of each electronic detonator module 200 receives the initiation instructions through the communication module 230, the level of the EN signal is inverted, so that the first switch S1 and the second switch S2 are closed, at this time, the first bus a and the second bus B are shorted to the ground, and no interference signal enters each electronic detonator module 200, which affects the subsequent execution of the initiation instructions. At this time, the energy storage capacitor C1 and the filter capacitor C2 supply power to the electronic detonator module 200, after the control module 250 completes the set delay and other operations, the ignition module 270 is controlled to open the detonating tube Q1, the energy stored in the energy storage capacitor C1 is released to the ground through the bridge wire resistor YT, so that the bridge wire resistor YT is caused to generate heat and ignite the initiating explosive head on the bridge wire resistor, and the blasting is completed.
In addition, an identity verification module is arranged on the initiator 100, and before operating the initiator 100, a field operator needs to verify the identity and perform 'roll call' on an electronic detonator module in a network through the identity verification module, and after passing authentication, the initiation process can be executed, so that the safety is improved.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The electronic detonator blasting control system is characterized in that each electronic detonator module is provided with a switch structure, and when the electronic detonator module receives a blasting instruction sent by the blasting device and starts to perform blasting, the electronic detonator module controls the switch structure to be in a closed state, so that the electronic detonator module, the blasting device and other electronic detonator modules are in a physical isolation state.
2. The system for controlling blasting of electronic detonators with improved interference resistance as claimed in claim 1, wherein the initiator is connected to a first busbar and a second busbar, the first busbar and the second busbar are greater than 500m in length, each electronic detonator module is connected to the first busbar and the second busbar by a branch line, and the branch line is 3m to 25m in length.
3. The system for controlling blasting of electronic detonators according to claim 2, wherein the switch structure comprises a first switch and a second switch, the first switch having ends connected to ground and the first busbar, respectively, the second switch having ends connected to ground and the second busbar, respectively, and the first busbar and the second busbar are shorted to ground when the first switch and the second switch are in a closed state.
4. The electronic detonator explosion control system for improving the anti-interference performance according to claim 3, wherein the electronic detonator module comprises a chip, an energy storage capacitor, a detonating tube and a bridgewire resistor, the chip comprises a power module, a communication module, a charge-discharge module, a control module, a function detection module and an ignition module, the power module and the communication module are respectively connected with a first bus and a second bus, the charge-discharge module is connected with the power module, the control module is respectively connected with the power module, the communication module, a first switch, a second switch and the charge-discharge module, the function detection module is connected with the control module, the ignition module is respectively connected with the control module and the detonating tube, the energy storage capacitor is respectively connected with the charge-discharge module and the bridgewire resistor, and the bridgewire resistor is connected with the detonating tube.
5. The electronic detonator blasting control system for improving the anti-interference performance according to claim 4, wherein the chip further comprises an NVM storage module, and the NVM storage module is connected with the control module.
6. The electronic detonator explosion control system for improving the anti-interference performance as claimed in claim 4, wherein the chip further comprises a POR power-on reset module, and the POR power-on reset module is connected with the control module.
7. The system as claimed in claim 4, wherein the chip further comprises an OSC clock module, and the OSC clock module is connected to the control module.
8. The system for controlling blasting of the electronic detonator with the improved anti-interference performance as claimed in claim 1, wherein the initiator is provided with an identity verification module.
9. The electronic detonator explosion control system for improving the anti-interference performance according to claim 1, wherein the switch structure is an NMOS switch or a PMOS switch or a CMOS switch or an NMOS switch with a current limiting resistor and a pull-down resistor or a PMOS switch with a current limiting resistor and a pull-up resistor or an NPN switch or a PNP switch or a composite switch of NPN and PNP.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011102492.7A CN112393653A (en) | 2020-10-15 | 2020-10-15 | Electronic detonator blasting control system for improving anti-interference performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011102492.7A CN112393653A (en) | 2020-10-15 | 2020-10-15 | Electronic detonator blasting control system for improving anti-interference performance |
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| CN112393653A true CN112393653A (en) | 2021-02-23 |
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| CN202011102492.7A Withdrawn CN112393653A (en) | 2020-10-15 | 2020-10-15 | Electronic detonator blasting control system for improving anti-interference performance |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114760204A (en) * | 2022-04-19 | 2022-07-15 | 华东光电集成器件研究所 | Networking evaluation device and networking test method for digital detonator |
| CN114812304A (en) * | 2022-03-29 | 2022-07-29 | 上海芯飏科技有限公司 | Ignition control system and method |
| CN114858020A (en) * | 2022-04-26 | 2022-08-05 | 上海芯飏科技有限公司 | Anti-interference method, system and medium for electronic detonator |
| CN114993122A (en) * | 2022-04-28 | 2022-09-02 | 上海芯飏科技有限公司 | Test system and method for simulating small-pitch tunneling face blasting electrostatic interference |
| CN115077311A (en) * | 2022-06-17 | 2022-09-20 | 上海芯飏科技有限公司 | Electronic detonator chip for storing detonation information and electronic detonator fault troubleshooting method |
-
2020
- 2020-10-15 CN CN202011102492.7A patent/CN112393653A/en not_active Withdrawn
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114812304A (en) * | 2022-03-29 | 2022-07-29 | 上海芯飏科技有限公司 | Ignition control system and method |
| CN114760204A (en) * | 2022-04-19 | 2022-07-15 | 华东光电集成器件研究所 | Networking evaluation device and networking test method for digital detonator |
| CN114760204B (en) * | 2022-04-19 | 2023-05-16 | 华东光电集成器件研究所 | Digital detonator networking evaluation device and networking test method |
| CN114858020A (en) * | 2022-04-26 | 2022-08-05 | 上海芯飏科技有限公司 | Anti-interference method, system and medium for electronic detonator |
| CN114858020B (en) * | 2022-04-26 | 2023-09-29 | 上海芯飏科技有限公司 | Anti-interference method and medium for electronic detonator |
| CN114993122A (en) * | 2022-04-28 | 2022-09-02 | 上海芯飏科技有限公司 | Test system and method for simulating small-pitch tunneling face blasting electrostatic interference |
| CN114993122B (en) * | 2022-04-28 | 2023-09-29 | 上海芯飏科技有限公司 | Test system and method for simulating small hole distance tunneling surface blasting electrostatic interference |
| CN115077311A (en) * | 2022-06-17 | 2022-09-20 | 上海芯飏科技有限公司 | Electronic detonator chip for storing detonation information and electronic detonator fault troubleshooting method |
| CN115077311B (en) * | 2022-06-17 | 2024-03-12 | 上海芯飏科技有限公司 | Electronic detonator chip for storing detonation information and electronic detonator fault investigation method |
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Application publication date: 20210223 |