CN115200438A - High-precision time delay method for water-resistant down-impact wave electronic detonator - Google Patents
High-precision time delay method for water-resistant down-impact wave electronic detonator Download PDFInfo
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- CN115200438A CN115200438A CN202210840053.9A CN202210840053A CN115200438A CN 115200438 A CN115200438 A CN 115200438A CN 202210840053 A CN202210840053 A CN 202210840053A CN 115200438 A CN115200438 A CN 115200438A
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- 238000000034 method Methods 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 239000013078 crystal Substances 0.000 claims abstract description 42
- 230000035939 shock Effects 0.000 claims abstract description 22
- 238000005474 detonation Methods 0.000 claims abstract description 11
- 238000004880 explosion Methods 0.000 claims description 6
- 230000000977 initiatory effect Effects 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 230000010355 oscillation Effects 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000005422 blasting Methods 0.000 description 15
- 238000009434 installation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000004806 packaging method and process Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
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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
-
- 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 a high-precision time delay method for an electronic detonator resisting water undershoot shock waves, and belongs to the technical field of electronic detonators. A high-precision time delay method for an electronic detonator resisting water undershoot shock waves is characterized in that a crystal oscillator with accurate timing and a resonant oscillator with better impact resistance are integrated in a control circuit of time delay detonation and are cooperated with each other, so that the electronic detonator has the advantages of high precision and impact resistance; meanwhile, the resonance oscillator which needs to bear the accurate time delay timing work in the detonation process is further reinforced, a high-strength impact-resistant chip mounting cavity is designed inside the electronic detonator mounting tube body, and on the basis of ensuring the accurate control time delay detonation function, the impact resistance of the electronic detonator is greatly improved.
Description
Technical Field
The invention relates to the technical field of electronic detonators, in particular to a high-precision time delay method of an electronic detonator resisting water undershoot shock waves.
Background
In large-scale engineering blasting, the delay accuracy, safety and reliability of the delay detonating network relate to important problem smoke whether blasting obtains Wugong and whether the blasting effect reaches the expected target. No matter what type of delay priming circuit is adopted, the number of delay electric detonators is large, the number of delay sections is large, and therefore higher requirements are provided for the shock resistance of the electric delay detonators in the blasting network. Due to the impact of the detonation wave during blasting, each explosion point can bring strong impact and overpressure to the adjacent explosion points which are not exploded yet at the moment of explosion.
If the adopted electronic time delay detonator has poor shock resistance and low stability, after a large-scale blasting circuit starts, a misfire phenomenon can be generated in part of the electronic detonators, particularly when an underwater blasting task is implemented, under the action of strong shock waves generated by blasting of the front-stage electronic detonators, namely, timing modules in part of the electronic detonators stop working and do not generate a blasting signal, so that the expected blasting effect of the blasting circuit is influenced, and huge potential safety hazards can be brought to the cleaning of the electronic detonators which are not blasted in an underwater blasting field. In order to solve the problems, the invention provides a high-precision time delay method for an electronic detonator resisting water undershoot shock waves.
Disclosure of Invention
The invention aims to provide a high-precision time delay method for an underwater shock wave resistant electronic detonator, which aims to solve the problems in the background technology:
the existing electronic delay detonator has poor shock resistance and low stability, is easy to have a phenomenon of misfiring under the action of strong shock waves, influences the blasting effect, and has the problem of larger potential safety hazard in the cleaning of the electronic detonator which is not detonated.
In order to solve the problems, the invention adopts the following technical scheme:
a high-precision time delay method for an electronic detonator resisting impact waves under water specifically comprises the following steps:
s1, designing an underwater electronic detonator initiation delay control circuit, and writing the control circuit into an integrated control chip of an electronic detonator;
s2, simultaneously integrally installing a crystal oscillator and a resonant oscillator on the integrated control chip, and further reinforcing and protecting the resonant oscillator on the chip;
s3, arranging a chip mounting cavity with good water resistance and strong impact resistance in the electronic detonator, and fixedly mounting the integrated control chip in the chip mounting cavity;
s4, after the control chip is installed, connecting an energy supply module in the electronic detonator with the instantaneous explosion module to form a control loop;
s5, after the circuit connection in the S4 is completed, writing preset delay detonation time on the integrated control chip, and charging the energy supply module through the charging circuit to be used as a power supply of the whole control loop;
s6, after the energy supply module is charged, starting the whole control loop, simultaneously starting the crystal oscillator and the resonant oscillator, and performing time delay timing calibration work on the resonant oscillator through the crystal oscillator;
and S7, after the calibration work is finished, stopping the crystal oscillator, and continuing to execute high-precision time delay timing work by the calibrated resonant oscillator until the electronic detonator is detonated.
Preferably, the crystal oscillator and the resonant oscillator mentioned in S2 are packaged on an integrated control chip in a patch manner, and a high-strength impact-resistant coating is further covered on the surface of the resonant oscillator.
Preferably, the step of performing delay timing calibration on the resonant oscillator by using the crystal oscillator in S6 specifically includes the following steps:
a1, a counter a and a counter b are simultaneously installed on a controllable loop, and the number of clock pulse signals output by a crystal oscillator is counted through the counter a on the controllable loop;
a2, after the crystal oscillator outputs X clock pulse signals, outputting a starting control signal through a counter a, starting a counting period generator, and enabling the counting period generator to count the output clock pulse signals of the resonant oscillator in the same period;
a3, counting the number of clock pulse signals output by the crystal oscillator through a counter b, outputting a closing control signal after the crystal oscillator outputs Y clock pulse signals, and stopping the counting period generator;
a4, enabling Y to be larger than X, and further obtaining the actual working state of the resonant oscillator according to counting data in the working period of the counting period generator;
and A5, calculating the oscillation time interval of the working resonant oscillator according to the counting data obtained in the step A4, wherein the time interval is the timing precision guaranteed by the crystal oscillator.
Preferably, the step S7 of completing the delayed initiation work of the electronic detonator by calibrating the post-resonant oscillator specifically includes the following steps:
b1, when the counter B outputs a closing control signal to stop the cycle generator, starting an integrated reference pulse generator and a main counter in a control loop to participate in work;
b2, the reference pulse counter counts the output pulse signals of the resonant oscillator by taking the data recorded and stored by the counting period generator as a period, and outputs a reference pulse every time one period is finished;
and B3, counting the reference pulse signal output in the B2 through a main counter, and outputting an execution signal to ignite and detonate the electronic detonator when the preset delay time of the control loop is reached.
Compared with the prior art, the invention provides a high-precision time delay method for an electronic detonator resisting water undershoot shock waves, which has the following beneficial effects:
(1) Compared with the existing design, the crystal oscillator with accurate timing and the resonant oscillator with better impact resistance are creatively and simultaneously integrated in the electronic detonator detonation delay control circuit, and the crystal oscillator and the resonant oscillator are mutually cooperated, so that the electronic detonator has the advantages of high accuracy and impact resistance; after the correction is finished, the high-precision crystal oscillator is not needed to be used for timing, and the resonance oscillator with high impact resistance continues to finish the high-precision timing work under the condition of strong overload, so that the impact resistance of the electronic detonator is effectively improved on the basis of ensuring the accurate time delay and timing of the electronic detonator through the design, and the condition of misfiring can be effectively avoided;
(2) In order to further ensure the impact resistance of the electronic detonator, the invention also carries out innovative design on the hardware structure, and carries out surface mount type packaging on the crystal oscillator and the resonant oscillator on the integrated control chip which is preset with the electronic detonator control circuit, thereby effectively reducing the volume of the integrated control chip, being more convenient for installation, and further carrying out further reinforced packaging on the resonant oscillator which plays a main time delay timing role in the actual blasting process and has better impact resistance; in addition, still set up the installation cavity that has good waterproof nature and shock-resistant ability inside the installation body of electronic detonator, better assurance integrated control chip's security, better improvement electronic detonator's shock-resistant ability, guaranteed electronic detonator's the effect of detonating.
Drawings
FIG. 1 is a schematic flow chart of a high-precision time delay method for an electronic detonator resisting water undershoot shock waves.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1:
referring to fig. 1, a high-precision time delay method for an electronic detonator resisting water undershoot shock waves specifically includes the following steps:
s1, designing an underwater electronic detonator initiation delay control circuit, and writing the control circuit into an integrated control chip of an electronic detonator;
s2, simultaneously integrally installing a crystal oscillator and a resonant oscillator on the integrated control chip, and further reinforcing and protecting the resonant oscillator on the chip;
the crystal oscillator and the resonant oscillator mentioned in the S2 are packaged on the integrated control chip in a surface mount type, and meanwhile, the surface of the resonant oscillator is covered with a high-strength impact-resistant coating;
s3, arranging a chip mounting cavity with good water resistance and strong impact resistance in the electronic detonator, and fixedly mounting the integrated control chip in the chip mounting cavity;
s4, after the control chip is installed, connecting an energy supply module in the electronic detonator with the instantaneous explosion module to form a control loop;
s5, after the circuit connection in the S4 is completed, writing preset delay detonation time on the integrated control chip, and charging the energy supply module through the charging circuit to be used as a power supply of the whole control loop;
s6, after the energy supply module is charged, starting the whole control loop, simultaneously starting the crystal oscillator and the resonant oscillator, and performing time delay timing calibration work on the resonant oscillator through the crystal oscillator;
the step of performing delay timing calibration for the resonant oscillator through the crystal oscillator mentioned in the step S6 specifically includes the following steps:
a1, a counter a and a counter b are simultaneously installed on a controllable loop, and the number of clock pulse signals output by a crystal oscillator is counted through the counter a on the controllable loop;
a2, after the crystal oscillator outputs X clock pulse signals, outputting a starting control signal through a counter a, starting a counting period generator, and enabling the counting period generator to count the output clock pulse signals of the resonant oscillator in the same period;
a3, counting the number of clock pulse signals output by the crystal oscillator through a counter b, outputting a closing control signal after the crystal oscillator outputs Y clock pulse signals, and stopping a counting period generator;
a4, enabling Y to be larger than X, and further obtaining the actual working state of the resonant oscillator according to counting data in the working period of the counting period generator;
a5, calculating the oscillation time interval of the working resonant oscillator according to the counting data obtained in the step A4, wherein the time interval is the timing precision ensured by the crystal oscillator
S7, after the calibration work is finished, stopping the crystal oscillator, and continuing to execute high-precision time delay timing work by the calibrated resonant oscillator until the electronic detonator is detonated;
the step S7 of completing the delayed detonation work of the electronic detonator by the calibrated resonant oscillator specifically comprises the following steps:
b1, when the counter B outputs a closing control signal to stop the cycle generator, starting an integrated reference pulse generator and a main counter in a control loop to participate in work;
b2, the reference pulse counter counts the output pulse signals of the resonant oscillator by taking the data recorded and stored by the counting period generator as a period, and outputs a reference pulse every time one period is finished;
and B3, counting the reference pulse signal output in the B2 through a main counter, and outputting an execution signal to ignite and detonate the electronic detonator when the preset delay time of the control loop is reached.
Compared with the existing design, the crystal oscillator with accurate timing and the resonant oscillator with better impact resistance are creatively and simultaneously integrated in the electronic detonator detonation delay control circuit, and the crystal oscillator and the resonant oscillator are cooperated with each other, so that the electronic detonator has the advantages of high accuracy and impact resistance; after the correction is finished, the high-precision crystal oscillator is not needed to be used for timing, and the resonance oscillator with high impact resistance continues to finish the high-precision timing work under the condition of strong overload, so that the impact resistance of the electronic detonator is effectively improved on the basis of ensuring the accurate time delay and timing of the electronic detonator through the design, and the condition of misfiring can be effectively avoided; in order to further ensure the impact resistance of the electronic detonator, the invention also carries out innovative design on the hardware structure of the electronic detonator, and carries out surface mount type packaging on the crystal oscillator and the resonant oscillator on an integrated control chip which is preset with an electronic detonator control circuit, thereby effectively reducing the volume of the integrated control chip, being more convenient for installation, and further carrying out further reinforcement packaging on the resonant oscillator which plays a main time delay and timing role in the actual blasting process and has better impact resistance; in addition, still set up the installation cavity that has good waterproof nature and shock-resistant ability inside the installation body of electronic detonator, better assurance integrated control chip's security, better improvement electronic detonator's shock-resistant ability, guaranteed electronic detonator's the effect of detonating.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (4)
1. A high-precision time delay method for an anti-water-undershoot shock wave electronic detonator is characterized by comprising the following steps:
s1, designing an underwater electronic detonator initiation delay control circuit, and writing the control circuit into an integrated control chip of an electronic detonator;
s2, simultaneously integrally installing a crystal oscillator and a resonant oscillator on the integrated control chip, and further reinforcing and protecting the resonant oscillator on the chip;
s3, arranging a chip mounting cavity with good water resistance and strong impact resistance inside the electronic detonator, and fixedly mounting the integrated control chip in the chip mounting cavity;
s4, after the control chip is installed, connecting an energy supply module in the electronic detonator with the instantaneous explosion module to form a control loop;
s5, after the circuit connection in the S4 is completed, writing preset delay detonation time on the integrated control chip, and charging the energy supply module through the charging circuit to be used as a power supply of the whole control circuit;
s6, after the energy supply module is charged, starting the whole control loop, simultaneously starting the crystal oscillator and the resonant oscillator, and performing time delay timing calibration work on the resonant oscillator through the crystal oscillator;
and S7, after the calibration work is finished, stopping the crystal oscillator, and continuing to execute high-precision time delay timing work by the calibrated resonance oscillator until the electronic detonator is detonated.
2. The method for delaying the high-precision time of the electronic detonator resistant to the water undershoot shock waves according to claim 1, wherein the crystal oscillator and the resonant oscillator mentioned in the step S2 are packaged on the integrated control chip in a patch type, and simultaneously, the surface of the resonant oscillator is covered with a high-strength shock-resistant coating.
3. The method for delaying the time of the electronic detonator with the resistance to the water undershoot shock wave according to claim 1, wherein the step of calibrating the time delay timing by using the crystal oscillator as the resonant oscillator in the step S6 specifically comprises the following steps:
a1, a counter a and a counter b are simultaneously installed on a controllable loop, and the number of clock pulse signals output by a crystal oscillator is counted through the counter a on the controllable loop;
a2, after the crystal oscillator outputs X clock pulse signals, outputting a starting control signal through a counter a, starting a counting period generator, and enabling the counting period generator to count the output clock pulse signals of the resonant oscillator in the same period;
a3, counting the number of clock pulse signals output by the crystal oscillator through a counter b, outputting a closing control signal after the crystal oscillator outputs Y clock pulse signals, and stopping a counting period generator;
a4, enabling Y to be larger than X, and further obtaining the actual working state of the resonant oscillator according to counting data in the working period of the counting period generator;
and A5, calculating the oscillation time interval of the working resonant oscillator according to the counting data obtained in the step A4, wherein the time interval is the timing precision guaranteed by the crystal oscillator.
4. The high-precision time delay method for the electronic detonator resistant to the water undershoot shock wave according to claim 1 or 3, wherein the step S7 of completing the time delay detonation work of the electronic detonator by calibrating the post-calibration resonant oscillator specifically comprises the following steps:
b1, when the counter B outputs a closing control signal to stop the cycle generator, starting an integrated reference pulse generator and a main counter in a control loop to participate in work;
b2, the reference pulse counter counts the output pulse signals of the resonant oscillator by taking the data recorded and stored by the counting period generator as a period, and outputs a reference pulse every time one period is finished;
and B3, counting the reference pulse signal output in the B2 through a main counter, and outputting an execution signal to ignite and detonate the electronic detonator when the preset delay time of the control loop is reached.
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| CN202210840053.9A CN115200438A (en) | 2022-07-18 | 2022-07-18 | High-precision time delay method for water-resistant down-impact wave electronic detonator |
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| CN202210840053.9A CN115200438A (en) | 2022-07-18 | 2022-07-18 | High-precision time delay method for water-resistant down-impact wave electronic detonator |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5117756A (en) * | 1989-02-03 | 1992-06-02 | Atlas Powder Company | Method and apparatus for a calibrated electronic timing circuit |
| CA2723970A1 (en) * | 2008-05-29 | 2009-12-03 | Orica Explosives Technology Pty Ltd | Calibration of detonators |
| CN202002581U (en) * | 2011-04-06 | 2011-10-05 | 傲杰得公司 | Instantaneous firing device for electric detonator |
| DE102016116567A1 (en) * | 2016-09-05 | 2017-08-17 | Innovative Pyrotechnik Gmbh | Electronic detonator |
| WO2018231435A1 (en) * | 2017-06-13 | 2018-12-20 | Austin Star Detonator Company | A method and apparatus for adjustable resolution electronic detonator delay timing |
| CN111322916A (en) * | 2020-03-18 | 2020-06-23 | 融硅思创(北京)科技有限公司 | High-precision digital electronic detonator chip and method for improving detonator delay precision |
| CN113346881A (en) * | 2021-05-27 | 2021-09-03 | 珠海东之尼电子科技有限公司 | Digital clock calibration method, wireless remote controller and storage medium |
-
2022
- 2022-07-18 CN CN202210840053.9A patent/CN115200438A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5117756A (en) * | 1989-02-03 | 1992-06-02 | Atlas Powder Company | Method and apparatus for a calibrated electronic timing circuit |
| CA2723970A1 (en) * | 2008-05-29 | 2009-12-03 | Orica Explosives Technology Pty Ltd | Calibration of detonators |
| CN202002581U (en) * | 2011-04-06 | 2011-10-05 | 傲杰得公司 | Instantaneous firing device for electric detonator |
| DE102016116567A1 (en) * | 2016-09-05 | 2017-08-17 | Innovative Pyrotechnik Gmbh | Electronic detonator |
| WO2018231435A1 (en) * | 2017-06-13 | 2018-12-20 | Austin Star Detonator Company | A method and apparatus for adjustable resolution electronic detonator delay timing |
| CN111322916A (en) * | 2020-03-18 | 2020-06-23 | 融硅思创(北京)科技有限公司 | High-precision digital electronic detonator chip and method for improving detonator delay precision |
| CN113346881A (en) * | 2021-05-27 | 2021-09-03 | 珠海东之尼电子科技有限公司 | Digital clock calibration method, wireless remote controller and storage medium |
Non-Patent Citations (2)
| Title |
|---|
| 汪旭光等: "爆破手册", 31 October 2010, 北京冶金工业出版社, pages: 626 - 631 * |
| 黄小亮;李世中;徐聪聪;郝建强;: "电子延时雷管的抗冲击计时研究", 爆破, no. 04, pages 94 - 96 * |
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