CN114923379B - Self-adaptive processing method for leakage current of electronic detonator priming network - Google Patents

Self-adaptive processing method for leakage current of electronic detonator priming network Download PDF

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Publication number
CN114923379B
CN114923379B CN202210300644.7A CN202210300644A CN114923379B CN 114923379 B CN114923379 B CN 114923379B CN 202210300644 A CN202210300644 A CN 202210300644A CN 114923379 B CN114923379 B CN 114923379B
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leakage current
current
bus
leakage
electronic
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CN114923379A (en
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冯吉诚
郑弘毅
金宝全
朱志明
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Shanghai Xinyang Technology Co ltd
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Shanghai Xinyang Technology Co ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42CAMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C19/00Details of fuzes
    • F42C19/08Primers; Detonators
    • F42C19/12Primers; Detonators electric

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  • General Engineering & Computer Science (AREA)
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Abstract

The application provides a self-adaptive processing method for leakage current of an electronic detonator priming network, which comprises the following steps: step 1: connecting the exploder with all the electronic detonators through a bus; step 2: the current I on the bus measured by the initiator bus The method comprises the steps of carrying out a first treatment on the surface of the Step 3: setting the number N of the electronic detonators and a preset single-shot quiescent current parameter I of the electronic detonators through the detonators s The method comprises the steps of carrying out a first treatment on the surface of the Step 4: the busbar current I is controlled by the initiator bus And comparing the theoretical current of the electronic detonator with the theoretical current of the electronic detonator, estimating the leakage current I, judging the leakage situation in the network according to a preset leakage current threshold value, and completing the self-adaptive processing. The application overcomes the slight electric leakage possibly encountered in most sites because of bus water seepage, and the short circuit is set for serious electric leakage to give an alarm in time, and the explosion is performed after hidden danger is eliminated, thereby improving the site explosion efficiency and ensuring the reliability.

Description

Self-adaptive processing method for leakage current of electronic detonator priming network
Technical Field
The application relates to the technical field of electronic detonators, in particular to a self-adaptive processing method for leakage current of an electronic detonator initiation network.
Background
The electronic detonator is widely applied to various blasting scenes, and many field environmental conditions are severe, so that the damage of wires is easy to cause when the electronic detonator is networked and wired. In a humid environment, once the wires are damaged and meet water, the electric leakage of the bus is caused, the current of the bus is increased, the voltage drop on the bus resistance is also increased, and the electrons Lei Guanduan obtain too low voltage to influence the communication and the detonation of the electronic detonator. Most of the published patents focus on various complicated leakage detection circuits and detection methods, once leakage occurs, basically no method is adopted to communicate and detonate, and in actual application scenes, the leakage is quite small in many cases, and the special treatment method is adopted by the detonators, so that the problems of serious leakage and even short circuit can be completely overcome, and the detonation is stopped only when the serious leakage is even short-circuited, so that hidden danger is eliminated.
Patent document with publication number of CN111238321A discloses a method and a system for online measurement of electric leakage of an electronic detonator network, wherein the method comprises the following steps: connecting the detonators with all detonators by using a bus; the exploder outputs a constant 10.4V direct current voltage to the bus; after each electronic detonator receives the instruction, an A/D converter is started to convert the value of the electronic detonator VDD, and the value of the electronic detonator VDD is stored; reading back the VDD value of each electronic detonator and the corresponding detonator number one by one and storing; it is determined whether all VDD values have a value less than 7V. However, this patent document still has a drawback that communication and initiation cannot be performed once electric leakage occurs.
Disclosure of Invention
Aiming at the defects in the prior art, the application aims to provide a self-adaptive processing method and a self-adaptive processing system for leakage current of an electronic detonator priming network.
The application provides a self-adaptive processing method for leakage current of an electronic detonator priming network, which comprises the following steps:
step 1: connecting the exploder with all the electronic detonators through a bus;
step 2: the current I on the bus measured by the initiator bus
Step 3: setting the number N of the electronic detonators and a preset single-shot quiescent current parameter I of the electronic detonators through the detonators s
Step 4: the busbar current I is controlled by the initiator bus And comparing the theoretical current of the electronic detonator with the theoretical current of the electronic detonator, estimating the leakage current I, judging the leakage situation in the network according to a preset leakage current threshold value, and completing the self-adaptive processing.
Preferably, in the step 1, the initiator and all the electronic detonators are connected in parallel.
Preferably, in the step 2, the measurement of the current on the bus by the initiator is a real-time measurement.
Preferably, in the step 4, the theoretical current of the electronic detonator sent by N is n×i s
PreferablyIn the step 4, the leakage current I is estimated as i=i bus -N*I s
Preferably, in the step 4, the preset maximum threshold of the leakage current threshold is I short The minimum threshold is I leakage
If the leakage current I is greater than the maximum threshold I short The circuit is considered to be short-circuited, and the detonation flow is exited;
if the leakage current I is smaller than the maximum threshold I short And is greater than the minimum threshold I leakage The obvious leakage current exists in the circuit;
if the leakage current I is less than the minimum threshold I leakage It is considered that there is substantially no leakage current in the line.
Preferably, if obvious leakage current exists in the circuit, the communication voltage of the initiator is increased, and the influence of the leakage current is eliminated.
Preferably, after eliminating the influence of leakage current, sending commands of communication, chip configuration, high-voltage capacitor charging and delay time setting through the initiator to perform state inspection;
if the state is normal, the exploder sends an explosion command to explode the electronic detonator; if the state is abnormal, the detonation flow is exited.
Preferably, if there is no leakage current in the circuit, sending a command of communication, chip configuration, high-voltage capacitor charging and delay time setting through the initiator, and performing state check;
if the state is normal, the exploder sends an explosion command to explode the electronic detonator, and if the state is abnormal, the exploding process is exited.
The application also provides a self-adaptive processing system for the leakage current of the electronic detonator priming network, which comprises the following modules:
module M1: connecting the exploder with all the electronic detonators through a bus;
module M2: the current I on the bus measured by the initiator bus
Module M3: by the initiatorSetting the number N of the electronic detonators and a preset single-shot quiescent current parameter I of the electronic detonators s
Module M4: the busbar current I is controlled by the initiator bus And comparing the theoretical current of the electronic detonator with the theoretical current of the electronic detonator, estimating the leakage current I, judging the leakage situation in the network according to a preset leakage current threshold value, and completing the self-adaptive processing.
Compared with the prior art, the application has the following beneficial effects:
1. the method overcomes the slight electric leakage possibly encountered in most sites because of bus water seepage, and alarms in time when short circuit is arranged on serious electric leakage, and detonates after hidden danger is eliminated, so that the efficiency of site detonating is improved, and meanwhile, the reliability is also ensured;
2. aiming at the problem that certain electric leakage possibly exists on a bus due to the fact that the field environment is moist and the like when the electronic detonator is subjected to real explosion networking, the application can estimate the leakage current through a simple bus current detection circuit at the initiator end without adding additional devices and elements, and can cope with different scenes through a self-adaptive processing method;
3. the application connects the detonators and all detonators in parallel through the bus, and the detonators measure the current I on the bus in real time bus The number N of the electronic detonators arranged on site and the preset static current parameter I of the single-shot electronic detonator s Leakage current threshold I derived from long-term engineering practice short And I leakage The electric leakage condition in the electronic detonator network is comprehensively researched and judged, and the self-adaptive processing is completed.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of a process flow of a method for adaptively processing leakage current of an electronic detonator priming network according to the present application;
FIG. 2 is a schematic diagram of an electronic detonator network of the present application;
FIG. 3 is a schematic diagram of the internal circuitry of the initiator of the application.
Detailed Description
The present application will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present application, but are not intended to limit the application in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present application.
Example 1:
as shown in fig. 1 to 3, the embodiment provides a self-adaptive processing method for leakage current of an electronic detonator priming network, which includes the following steps:
step 1: connecting the exploder with all the electronic detonators through a bus; the initiator and all the electronic detonators are connected in parallel.
Step 2: current I on bus measured by initiator bus The method comprises the steps of carrying out a first treatment on the surface of the The measurement of the current on the bus by the initiator is a real-time measurement.
Step 3: setting the number N of the electronic detonators and preset static current parameters I of the single-shot electronic detonators through detonators s
Step 4: bus current I through initiator bus Comparing the current with the theoretical current of the N power generation electronic detonators, estimating the leakage current I, judging the leakage situation in the network according to a preset leakage current threshold value, and completing self-adaptive processing; theoretical current of N-generation electronic detonator is N x I s Leakage current I is estimated as i=i bus -N*I s The method comprises the steps of carrying out a first treatment on the surface of the The maximum threshold value of the preset leakage current threshold value is I short The minimum threshold is I leakage If the leakage current I is greater than the maximum threshold I short If the leakage current I is smaller than the maximum threshold I, the circuit is considered to be short-circuited, the detonation flow is exited short And is greater than a minimum threshold I leakage The line is considered to have a significant leakage current, if the leakage current I is less than the minimum threshold I leakage Then consider that there is substantially no lineLeakage current; if obvious leakage current exists in the circuit, the communication voltage of the exploder is increased, the influence of the leakage current is eliminated, after the influence of the leakage current is eliminated, the exploder sends commands of communication, chip configuration, high-voltage power charging and delay time setting to perform state checking, if the state is normal, the exploder sends an explosion command to explode the electronic detonator, and if the state is abnormal, the exploding process is exited; if no leakage current exists in the circuit basically, the state checking is carried out by sending a command of communication, chip configuration, high-voltage power charging and delay time setting through the exploder, if the state is normal, the exploder sends an explosion command to explode the electronic detonator, and if the state is abnormal, the explosion process is exited.
Example 2:
the embodiment provides an electronic detonator priming network leakage current self-adaptive processing system, which comprises the following modules:
module M1: connecting the exploder with all the electronic detonators through a bus;
module M2: the current I on the bus measured by the initiator bus
Module M3: setting the number N of the electronic detonators and a preset single-shot quiescent current parameter I of the electronic detonators through the detonators s
Module M4: the busbar current I is controlled by the initiator bus And comparing the theoretical current of the electronic detonator with the theoretical current of the electronic detonator, estimating the leakage current I, judging the leakage situation in the network according to a preset leakage current threshold value, and completing the self-adaptive processing.
Example 3:
the present embodiment will be understood by those skilled in the art as more specific descriptions of embodiment 1 and embodiment 2.
The embodiment provides a self-adaptive processing method for leakage current of an electronic detonator priming network, which comprises the following steps:
step 1: connecting the detonators and all detonators in parallel through a bus;
step 2: general purpose medicineSetting the number N of the current networking electronic detonators and the preset quiescent current parameter I of the single electronic detonator through an initiator interface s
Step 3: bus current I on electronic detonator network through detonator bus Performing real-time measurement;
step 4: according to bus current I bus Estimating leakage current I in an electronic detonator network through a self-adaptive algorithm according to the number N of the electronic detonators, wherein the leakage current I=I bus -N*I s If the leakage current I exceeds the maximum threshold I short Considering the circuit to be short-circuited, exiting the detonation flow, otherwise entering the step 5;
step 5: if the leakage current I is less than the maximum threshold I short And is greater than a minimum threshold I leakage If the leakage current I is smaller than the minimum threshold I, the obvious leakage current exists in the line, the step 6 is carried out leakage And (7) considering that no leakage current exists in the circuit basically, and directly entering the step (7);
step 6: step 7, raising communication voltage of the exploder, eliminating leakage current influence and carrying out the step;
step 7: the state inspection is carried out by sending commands of communication, chip configuration, high-voltage power charging and delay time setting through the exploder;
step 8: if the state is normal, the exploder sends an explosion command to explode the electronic detonator, and if the state is abnormal, the exploder exits the explosion process.
In the embodiment, the detonators are connected with all detonators in parallel through the bus, and the detonators measure the current I on the bus in real time bus The number N of the electronic detonators arranged on site and the preset static current parameter I of the single-shot electronic detonator s Leakage current threshold I derived from long-term engineering practice short And I leakage The electric leakage condition in the electronic detonator network is comprehensively researched and judged, and the self-adaptive processing is completed.
Example 4:
the embodiment provides a self-adaptive processing method for leakage current of an electronic detonator priming network, which comprises the following steps ofThe steps are as follows: the detonators are connected with all detonators in parallel through a bus, and the current I on the bus is measured in real time by the detonators bus By setting the number N of the electronic detonators and the preset static current parameter I of the single-shot electronic detonators s The initiator applies bus current I bus Comparing with theoretical current N x Is of N detonators, and simultaneously according to preset leakage current threshold I short And I leakage To judge the leakage condition in the network and complete the self-adapting process.
The specific working principle is as follows:
step one: connecting the detonators and all detonators in parallel through a bus;
step two: setting the number N of the current electronic detonators which are networked through an initiator interface;
step three: bus current I on electronic detonator network through detonator bus Performing real-time measurement;
step four: estimating the leakage current I in the electronic detonator network according to the self-adaptive algorithm, if the leakage current I exceeds the maximum threshold I short If the circuit is considered to be short-circuited, the explosion is started after the hidden danger is detected, and the detonation flow is exited; otherwise, enter step five;
step five: if the leakage current is less than threshold I short But is greater than I leakage If the circuit is considered to have obvious leakage current, the voltage of the initiator needs to be increased, and the step six is carried out; if the leakage current is less than I leakage The leakage current is considered to be basically absent in the circuit, boosting treatment is not needed, and the step seven is directly carried out;
step six: the communication voltage of the exploder is improved, and the influence of leakage current is eliminated;
step seven: the state inspection of normal communication, chip configuration, high-voltage power charging, delay time setting and the like is completed by the exploder;
step eight: the initiator sends an initiation command to detonate the electronic detonator.
As shown in fig. 2, a schematic diagram of an electronic detonator is shown.
As shown in fig. 3, an internal circuit diagram of the initiator is shown. The boost circuit is used for completing the boost function from the battery voltage (generally 8.4V of two lithium batteries) to the communication voltage, the communication voltage can be divided into two steps, namely a low voltage V1 and a high voltage V2, and different voltage steps can be configured through software; the feedback path is used for realizing the communication voltage gear selection of the booster circuit by adjusting the resistance on the feedback path, when the default resistance R1 is accessed, the output voltage is low voltage V1, and when R2 is accessed through switch control, the output voltage is high voltage V2; the AB two-bus driving circuit is used for completing the conversion of the AB two-bus power supply and signal functions; the AB bus current sampling circuit is used for completing the collection of AB bus current; the main control unit is used as a main control unit of the exploder, all measurement and control in the exploder are completed, and the self-adaptive processing method of leakage current is operated on the main control unit; the voltage-reducing and voltage-stabilizing circuit realizes the voltage-reducing function from the battery voltage to low voltage and is used for supplying power to the main control unit and other circuit parts; and the electronic detonator module is used for detonating the electronic module of the explosive through the control of the detonator.
The application overcomes the slight electric leakage possibly encountered in most sites because of bus water seepage, and the short circuit is set for serious electric leakage to give an alarm in time, and the explosion is performed after hidden danger is eliminated, thereby improving the site explosion efficiency and ensuring the reliability.
Those skilled in the art will appreciate that the application provides a system and its individual devices, modules, units, etc. that can be implemented entirely by logic programming of method steps, in addition to being implemented as pure computer readable program code, in the form of logic gates, switches, application specific integrated circuits, programmable logic controllers, embedded microcontrollers, etc. Therefore, the system and various devices, modules and units thereof provided by the application can be regarded as a hardware component, and the devices, modules and units for realizing various functions included in the system can also be regarded as structures in the hardware component; means, modules, and units for implementing the various functions may also be considered as either software modules for implementing the methods or structures within hardware components.
The foregoing describes specific embodiments of the present application. It is to be understood that the application is not limited to the particular embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without affecting the spirit of the application. The embodiments of the application and the features of the embodiments may be combined with each other arbitrarily without conflict.

Claims (5)

1. The self-adaptive processing method for the leakage current of the electronic detonator priming network is characterized by comprising the following steps:
step 1: connecting the exploder with all the electronic detonators through a bus;
step 2: the current I on the bus measured by the initiator bus
Step 3: setting the number N of the electronic detonators and a preset single-shot quiescent current parameter I of the electronic detonators through the detonators s
Step 4: the busbar current I is controlled by the initiator bus Comparing the current with the theoretical current of the N electronic detonators, estimating the leakage current I, judging the leakage situation in the network according to a preset leakage current threshold value, and completing self-adaptive processing;
in the step 4, the preset maximum threshold value of the leakage current threshold value is I short The minimum threshold is I leakage
If the leakage current I is greater than the maximum threshold I short The circuit is considered to be short-circuited, and the detonation flow is exited;
if the leakage current I is smaller than the maximum threshold I short And is greater than the minimum threshold I leakage The obvious leakage current exists in the circuit;
if the leakage current I is less than the minimum threshold I leakage The leakage current in the line is considered to be substantially absent;
if obvious leakage current exists in the circuit, the communication voltage of the exploder is increased, and the influence of the leakage current is eliminated;
after eliminating the influence of leakage current, sending commands of communication, chip configuration, high-voltage capacitor charging and delay time setting through the initiator, and performing state inspection;
if the state is normal, the exploder sends an explosion command to explode the electronic detonator; if the state is abnormal, the detonation flow is exited;
if no leakage current exists in the circuit basically, sending commands of communication, chip configuration, high-voltage capacitor charging and delay time setting through the initiator, and performing state inspection;
if the state is normal, the exploder sends an explosion command to explode the electronic detonator, and if the state is abnormal, the exploding process is exited.
2. The method for adaptively treating leakage current of an electronic detonator priming network according to claim 1, wherein in step 1, the initiator and all the electronic detonators are connected in parallel.
3. The method according to claim 1, wherein in the step 2, the measurement of the current on the bus by the initiator is real-time measurement.
4. The method for adaptively processing leakage current of an electronic detonator priming network according to claim 1, wherein in the step 4, the theoretical current of N electronic detonators is n×i s
5. The method for adaptively processing leakage current of an electronic detonator priming network of claim 4,
in the step 4, the leakage current I is estimated as i=i bus -N*I s
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CN111220037A (en) * 2019-09-10 2020-06-02 贵州全安密灵科技有限公司 Method and circuit for preventing electronic detonator initiator from accidentally initiating electric 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
CN114111477A (en) * 2021-12-10 2022-03-01 上海一伊电子科技有限公司 Electronic detonator capacitor high-voltage leakage current testing device, method and system

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CA1112716A (en) * 1979-01-23 1981-11-17 Cullinan Holdings Limited Monitoring the condition of an insulator
CA2427147A1 (en) * 2000-11-09 2003-04-28 Orica Explosives Technology Pty Ltd Sensor for monitoring electronic detonation circuits
CN201600429U (en) * 2010-02-03 2010-10-06 北京北方邦杰科技发展有限公司 Electric leakage detector for electronic detonator network
CN102506619A (en) * 2011-11-01 2012-06-20 北京维深数码科技有限公司 Programming unit and electrifying method for digital electronic detonator system
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CN111220037A (en) * 2019-09-10 2020-06-02 贵州全安密灵科技有限公司 Method and circuit for preventing electronic detonator initiator from accidentally initiating electric detonator
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CN114111477A (en) * 2021-12-10 2022-03-01 上海一伊电子科技有限公司 Electronic detonator capacitor high-voltage leakage current testing device, method and system

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