CN112556521A - Electronic detonator for improving communication anti-interference performance - Google Patents
Electronic detonator for improving communication anti-interference performance Download PDFInfo
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- CN112556521A CN112556521A CN202011103170.4A CN202011103170A CN112556521A CN 112556521 A CN112556521 A CN 112556521A CN 202011103170 A CN202011103170 A CN 202011103170A CN 112556521 A CN112556521 A CN 112556521A
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- rectifying
- electronic detonator
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- 238000004891 communication Methods 0.000 title claims abstract description 40
- 239000003999 initiator Substances 0.000 claims abstract description 36
- 238000005474 detonation Methods 0.000 claims abstract description 19
- 239000003990 capacitor Substances 0.000 claims description 13
- 238000004146 energy storage Methods 0.000 claims description 13
- 238000002955 isolation Methods 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 3
- 230000036039 immunity Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 7
- 239000002184 metal Substances 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract 1
- 230000000977 initiatory effect Effects 0.000 description 15
- 238000010586 diagram Methods 0.000 description 7
- 238000005422 blasting Methods 0.000 description 6
- 238000004880 explosion Methods 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010200 validation analysis Methods 0.000 description 1
Images
Classifications
-
- 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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
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Abstract
The invention discloses an electronic detonator for improving communication anti-interference performance, which comprises a rectifying and communication circuit, a control module, an ignition module and a switch structure, wherein the control module is respectively connected with the ignition module and the rectifying and communication circuit, the rectifying and communication circuit is connected with an initiator, one end of the switch structure is connected between the rectifying and communication circuit and the initiator, the other end of the switch structure is grounded, the switch structure is controlled by the control module, and when the control module receives a detonation instruction sent by the initiator and starts to perform detonation, the control module controls the switch structure to be in a closed state, so that the electronic detonator module and the initiator are in a physical separation 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 capable of improving the anti-interference performance of communication.
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 with improved communication anti-interference performance.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the electronic detonator comprises a rectifying and communication circuit, a control module, an ignition module and a switch structure, wherein the control module is respectively connected with the ignition module and the rectifying and communication circuit, the rectifying and communication circuit is connected with an initiator, one end of the switch structure is connected between the rectifying and communication circuit and the initiator, the other end of the switch structure is grounded, the switch structure is controlled by the control module, and when the control module receives an initiation instruction sent by the initiator and starts to execute initiation, the control module controls the switch structure to be in a closed state, so that the electronic detonator module and the initiator 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, the rectifying and communication circuit is connected with the first bus bar and the second bus bar through branch lines, and the length of the branch lines is 3 m-25 m.
In a preferred embodiment of the present invention, the control module is a single chip microcomputer/control chip, an RX pin and a TX pin of the single chip microcomputer/control chip are respectively connected to the rectification and communication circuit, and a P0 pin of the single chip microcomputer/control chip is connected to the switch structure.
In a preferred embodiment of the present invention, the ignition module includes an energy storage capacitor, a squib and a bridge wire resistor, the P6 pin of the single chip microcomputer/control chip is connected to the squib, the VC pin of the single chip microcomputer/control chip is connected to the energy storage capacitor and the bridge wire resistor, and the bridge wire resistor is connected to the squib.
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 switch structure is an NMOS switch, a PMOS switch, a CMOS switch, an NPN switch, a PNP switch, or a composite switch of NPN and PNP, or a thyristor switch.
The invention has the beneficial effects that:
the invention solves the problem of electronic detonator explosion rejection caused by electric signal interference in the processes of receiving an explosion receiving 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 these drawings without any creative effort.
FIG. 1 is a schematic view of the connection of the present invention to an initiator;
FIG. 2 is a schematic structural view of the present invention;
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 NPN switch;
FIG. 7 is a schematic diagram of a PNP switch;
FIG. 8 is a schematic diagram of a combination NPN and PNP switch;
fig. 9 is a schematic structural diagram of the thyristor switch.
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 and 2, the electronic detonator with improved communication anti-interference performance provided by the invention comprises a rectifying and communication circuit 210, a control module 220, an ignition module 230 and a switch structure 240.
The rectifying and communication circuit 210 is for connection to the initiator 100 for receiving power and control signals provided by the initiator 100, and the rectifying and communication circuit 210 may be connected to the initiator 100 in the following manner: the initiator 100 is connected to a first bus a and a second bus B, and the rectifying and communicating circuit 210 is connected to the first bus a and the second bus B by branch lines.
In order to ensure the safety of field blasting operators, the lengths of the first bus A and the second bus B are greater than 500m, and meanwhile, the lengths of the electronic detonator modules 200 connected to the first bus A and the second bus B through branch lines can be 3 m-25 m according to different field conditions.
The control module 220 is respectively connected to the rectifying and communication circuit 210 and the ignition module 230, and is configured to receive the signal sent by the rectifying and communication circuit 210, feed back the signal to the rectifying and communication circuit 210, and control the ignition module 230 to operate.
The control module 220 may be specifically a single chip microcomputer/control chip, an RX pin and a TX pin of the single chip microcomputer/control chip are respectively connected to the rectifying and communication circuit 210, the rectifying and communication circuit 210 processes data sent from the initiator 100 and transmits the processed data to the single chip microcomputer/control chip through the RX pin, and the single chip microcomputer/control chip may also transmit the processed data to the rectifying and communication circuit 210 through the TX pin, and the data is returned to the initiator 100 through the first bus a and the second bus B in a current feedback manner by the rectifying and communication circuit 210.
The ignition module 230 comprises an energy storage capacitor C1, an initiation tube Q1 and a bridge wire resistor YT, a pin P6 of a singlechip/control chip is connected with the initiation tube Q1, a pin VC of the singlechip/control chip is connected with the energy storage capacitor C1 and the bridge wire resistor YT, the bridge wire resistor YT is connected with the initiation tube Q1, after the singlechip/control chip receives a charging instruction, the energy storage capacitor C1 is charged by controlling the pin VC, the charging is stopped when the voltage of the energy storage capacitor C1 reaches an expected voltage value, after the charging is finished, the initiation device 100 sends an initiation instruction, the initiation tube Q1 is opened through the pin P6, the energy stored in the energy storage capacitor C1 is released to the ground through the bridge wire resistor YT, the bridge wire resistor YT is caused to generate heat, and an initiation explosive head on the bridge wire resistor is ignited, and the blasting is finished.
One end of the switch structure 240 is connected between the rectifying and communication circuit 210 and the initiator 100, the other end is grounded and controlled by the control module 220, and after the control module 220 receives a detonation instruction sent by the initiator 100 and starts to perform detonation, the control module 220 controls the switch structure 240 to be in a closed state, so that the electronic detonator module 200 and the initiator 100 are in a physical isolation state at this time, and interference signals possibly generated in the process of performing detonation are isolated.
The switch structure 240 is specifically connected in series between the first bus a and the second bus B and the ground, and includes a first switch S1 and a second switch S2, 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 shorted to the ground, and at this time, the initiator 100 is just in a physical isolation state.
In the present application, only after the control module 220 receives an initiation command of the initiator 100, the control module 250 will start to perform initiation and control the first switch S1 and the second switch S2 to be closed, and otherwise, the control module 220 controls the first switch S1 and the second switch S2 to be in an open state. Therefore, the detonation device and the detonation device 100 can not only ensure that the detonation device is not interfered when the detonation is carried out, but also enable the detonation device and the detonation device 100 to carry out normal information and power transmission before the detonation.
The first switch S1 and the second switch S2 can have a variety of different specific implementations, including: NMOS switch, PMOS switch, CMOS switch, NPN switch, PNP switch, NPN and PNP composite switch, and silicon controlled switch.
Referring to fig. 3-9, the following are various specific implementations of the switch structure:
(1) when the switch structure is an NMOS switch, the switch is switched on when a control signal ENN sent by the control module is at a high level, and the switch is switched off when the ENN is at a low level;
(2) when the switch structure is a PMOS tube switch, the switch is switched on when a control signal ENP sent by the control module is at a low level, and the switch is switched off when the ENP is at a high level;
(3) when the switch structure is a CMOS switch, a control signal ENN sent by the control module is at a high level, and when ENP is at a low level, the switch is conducted; 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 NPN switch, and a control signal ENN sent by the control module is at a high level, the NPN transistor QN is turned on, the output Vout is shorted to the ground, which is equivalent to that the switch is turned off, and when ENN is in another state, the pull-down resistor R2 is grounded, the NPN transistor QN is turned off, and Vin is Vout, which is equivalent to that the switch is turned on;
(5) when the switch structure is a PNP switch, and a control signal ENP sent by the control module is at a low level, the PNP transistor QP is turned on, Vin is Vout, which is equivalent to the switch on state, and when the ENP is in another state, the pull-up resistor R5 is connected to Vin, and the PNP transistor QP is turned off, which is equivalent to the switch off state;
(6) when the switch structure is an NPN and PNP combined switch, when a control signal ENN sent by the control module is at a high level, the NPN triode QN is conducted, a base level of a PNP triode QP is grounded, the QP is conducted, Vin is Vout, which is equivalent to the conduction of the switch, when the ENN is in other states, the pull-down resistor R2 is grounded, the pull-up resistor R7 is connected with Vin, and the triodes QN and QP are both disconnected, which is equivalent to the disconnection of the switch;
(7) when the switch structure is a silicon controlled switch, when a control signal ENN sent by the control module changes from a low level to a high level, Vin is Vout, which is equivalent to the switch being turned on, and when ENN is a low level, the switch is turned off.
The specific selection of the switch structure 240 may be determined according to actual requirements, and the implementation manner of the switch structure is not limited to the above 7 manners, and all the implementation manners of the switch structure that the control module 220 can control the switch structure 240 to be in the closed state after receiving the initiation instruction sent by the initiator 100 may be adopted.
The following is a specific working process of the present application:
the initiator 100 will first send a scan broadcast command to the rectifying and communication circuit 210, and after the rectifying and communication circuit 210 receives the scan command, the rectifying and communication circuit 210 transmits the processed data to the RX pin of the control module 220, and the control module 220 processes the processed data, data is passed to the rectifying and communication circuit 210 via the TX pin and is returned by the rectifying and communication circuit 210 in the form of current feedback to the initiator 100 for validation, after which the status is validated, the initiator 100 sends a charging command to the control module 220 through the rectifying and communication circuit 210, and the control module 220 controls the VC pin after receiving the charging command, the energy storage capacitor C1 is charged, when the voltage of the energy storage capacitor C1 reaches the expected voltage value, the charging is stopped, after the charging is finished, after the initiator 100 sends an initiation command, the output first bus a and second bus B become zero level. After the control module 220 receives the firing command, the level of the EN control signal output from the P0 pin 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 short-circuited to the ground, so that no interference signal enters the module to influence the subsequent execution of the detonation instruction. At this time, the energy storage capacitor C1 supplies power to the control module 220, after the control module 220 completes the set delay operation, the detonating tube Q1 is opened through the pin P6, the energy stored in the energy storage capacitor C1 is released to the ground through the bridgewire resistor, the bridgewire resistor YT is caused to generate heat, and the initiation explosive head on the bridgewire resistor is ignited, so that 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 'point name' on the electronic detonator module 200 in the network through the identity verification module, and after passing the authentication, the initiation process can be executed, so that the safety is improved.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present 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 (6)
1. The electronic detonator is characterized by comprising a rectifying and communication circuit, a control module, an ignition module and a switch structure, wherein the control module is respectively connected with the ignition module and the rectifying and communication circuit, the rectifying and communication circuit is connected with an initiator, one end of the switch structure is connected between the rectifying and communication circuit and the initiator, the other end of the switch structure is grounded, the switch structure is controlled by the control module, and when the control module receives a detonation instruction sent by the initiator and starts to perform detonation, the control module controls the switch structure to be in a closed state, so that the electronic detonator module, the initiator and other electronic detonator modules are in a physical isolation state.
2. The electronic detonator of claim 1 wherein the initiator is connected with a first bus and a second bus, the first bus and the second bus have a length greater than 500m, the rectifying and communication circuit is connected with the first bus and the second bus through a branch line, and the branch line has a length of 3m to 25 m.
3. The electronic detonator for improving the communication interference immunity of claim 1, wherein the control module is a single chip microcomputer/control chip, an RX pin and a TX pin of the single chip microcomputer/control chip are respectively connected with a rectifying and communication circuit, and a P0 pin of the single chip microcomputer/control chip is connected with a switch structure.
4. The electronic detonator of claim 3 wherein the ignition module comprises an energy storage capacitor, a detonator and a bridge wire resistor, the P6 pin of the single chip microcomputer/control chip is connected with the detonator, the VC pin of the single chip microcomputer/control chip is connected with the energy storage capacitor and the bridge wire resistor, and the bridge wire resistor is connected with the detonator.
5. The electronic detonator of claim 2 wherein the switch structure comprises a first switch and a second switch, wherein the first switch has two ends connected to ground and a first bus, and the second switch has two ends connected to ground and a second bus, and wherein the first bus and the second bus are shorted to ground when the first switch and the second switch are in a closed state.
6. The electronic detonator of claim 1 wherein the switch structure is an NMOS switch or a PMOS switch or a CMOS switch or an NPN switch or a PNP switch or a composite switch of an NPN and a PNP or a thyristor switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011103170.4A CN112556521A (en) | 2020-10-15 | 2020-10-15 | Electronic detonator for improving communication anti-interference performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011103170.4A CN112556521A (en) | 2020-10-15 | 2020-10-15 | Electronic detonator for improving communication anti-interference performance |
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| Publication Number | Publication Date |
|---|---|
| CN112556521A true CN112556521A (en) | 2021-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011103170.4A Withdrawn CN112556521A (en) | 2020-10-15 | 2020-10-15 | Electronic detonator for improving communication anti-interference performance |
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| Country | Link |
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Cited By (1)
| 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 |
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| US20030101889A1 (en) * | 1999-12-07 | 2003-06-05 | Sune Hallin | Flexible detonator system |
| CN101666595A (en) * | 2009-09-08 | 2010-03-10 | 北京维深数码科技有限公司 | Control chip of digital electronic detonator |
| CN105043178A (en) * | 2015-06-08 | 2015-11-11 | 北京丹芯灵创科技有限公司 | Secure network device for electronic detonator initiation system and use method of secure network device |
| CN109186381A (en) * | 2018-08-13 | 2019-01-11 | 贵州全安密灵科技有限公司 | The method and structure that electric detonator circuit is protected |
| CN110044224A (en) * | 2019-03-28 | 2019-07-23 | 陈默 | A kind of electric detonator and its initiation system of no ignition capacitor |
| CN111238326A (en) * | 2020-01-17 | 2020-06-05 | 杭州晋旗电子科技有限公司 | Electronic detonator communication circuit and electronic detonator |
| CN111238321A (en) * | 2020-02-07 | 2020-06-05 | 杭州晋旗电子科技有限公司 | Method and system for measuring electric leakage of electronic detonator network on line |
| CN111750748A (en) * | 2020-07-28 | 2020-10-09 | 杭州国芯科技股份有限公司 | Anti-electromagnetic interference method of electronic detonator |
-
2020
- 2020-10-15 CN CN202011103170.4A patent/CN112556521A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030101889A1 (en) * | 1999-12-07 | 2003-06-05 | Sune Hallin | Flexible detonator system |
| CN101666595A (en) * | 2009-09-08 | 2010-03-10 | 北京维深数码科技有限公司 | Control chip of digital electronic detonator |
| CN105043178A (en) * | 2015-06-08 | 2015-11-11 | 北京丹芯灵创科技有限公司 | Secure network device for electronic detonator initiation system and use method of secure network device |
| CN109186381A (en) * | 2018-08-13 | 2019-01-11 | 贵州全安密灵科技有限公司 | The method and structure that electric detonator circuit is protected |
| CN110044224A (en) * | 2019-03-28 | 2019-07-23 | 陈默 | A kind of electric detonator and its initiation system of no ignition capacitor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114812304A (en) * | 2022-03-29 | 2022-07-29 | 上海芯飏科技有限公司 | Ignition control system and method |
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