CN101349532B - Safe blasting system capable of alarming misfire information - Google Patents

Safe blasting system capable of alarming misfire information Download PDF

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Publication number
CN101349532B
CN101349532B CN200810150735A CN200810150735A CN101349532B CN 101349532 B CN101349532 B CN 101349532B CN 200810150735 A CN200810150735 A CN 200810150735A CN 200810150735 A CN200810150735 A CN 200810150735A CN 101349532 B CN101349532 B CN 101349532B
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digital
misfire
information
digital primer
primer
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CN200810150735A
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CN101349532A (en
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张金生
孙彤
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Space Star Aerospace Technology Applications Co Ltd
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Space Star Aerospace Technology Applications Co Ltd
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Abstract

The invention discloses a safe blasting system which can warn failure blasting information, which comprises a digital detonator which is provided with a digital control module, a coding record device and a blaster, wherein the system can detonate a series of digital detonator and ammunition in the blasting operation, and can warn failure blasting information for non blasting digital detonators for some reasons. The invention can monitor and record blasting failures in far distance, and can rapidly analyze and check the position of hiding explosive.

Description

But the safe blasting system of alarming misfire information and definite misfire detonator method of hiding
Technical field
The present invention relates to the explosion field; Relate to control device to numerous detonators with different initiation extension; But especially a kind of safe blasting system of alarming misfire information, this system has the dangerous security feature of subsequent job that minimizing is caused by one or more initiation system component faults (misfire) in bursting work.
Background technology
In bursting work; The reason that causes casualties; Except the illegal use of explosive, main by the fault of explosive and operating personnel's the caused accidental explosion of carelessness, this is comprising the misfire that lost efficacy and cause owing to detonator; Residual explosive does not come to light in subsequent job, and accident is blasted.Research in the past mainly concentrates on the mechanism before the explosion; Such as: how to improve the security of detonator self; How to prevent illegal use, and how for bursting work provides more job information, purpose is to reduce to minimum for the injured and dead danger that explosion is on-the-spot.
An example, the application number of announcing on March 23rd, 2005 are to have disclosed a digital electric detonator controller that is solidified with electronics ID coding in 03156912.9 the one Chinese patent application book.In this control mode, be provided with password in the digital electric detonator controller, the disabled user who does not have password can't detonating capsule.Be provided with the technical security guarantee for the illegal detonator that runs off, but it does not relate to detonator misfire Fault Processing.
Another example; The application number of announcing on August 24th, 2006 is to have disclosed a significant improvement of blasting gear security and safety being carried out in mining processes uses in the PCT/AU2006/000203 application for patent, has comprised the development of blasting gear and blasting method.This development relates to blasting gear is activated and deexcitation according to predetermined parameter.For example, these parameters possibly comprise one or more: the position that explosion is on-the-spot, and the time of explosion incident, in the quantity of giving first explosion in the time period, and to the identification of detonator identification code.Activate or deexcitation possibly relate between the assembly of blasting gear, or between the relevant detonator, or the intercommunication mutually between the assembly of blasting gear and the relevant detonator.These communications possibly comprise electronic communication measure or radio communication measure, comprise the for example use of mobile phone technique, the use of internet.Like this, the equipment of the first-selection that discloses here and measure can also can controlled and record the explosion incident at a distance the geographical position and the time of explosion incident being carried out rapid analysis and verification at a distance.But it does not still relate to detonator misfire Fault Processing.
The for example clear developing many-sided improvement of blasting gear of prior art discussed above, wherein improved purpose is to make blasting gear only when the user through permission uses, just to work, and reduces the consequence that user's error is caused., the detonator that in explosion, causes for a certain reason can not detonate, and for example neglected loading medicine or powder charge were lost efficacy, and this defective digital primer self can't detect.Thereby cause the scene after explosion to leave over undiscovered explosive, in follow-up bursting work, if the borehole of new installation explosive is set at the position of leaving over explosive, the construction of cutter borehole will ignition charge.Perhaps, the blast of leaving over explosive that other reason causes all can cause personnel's injures and deaths.Simultaneously, because this blast is unexpected, the consequence that it causes is even more serious.For this reason, will be to the monitoring of explosive, by extending to the secure content that whole blasting process brings before the explosion, the status is of crucial importance in blast industry.Here in corresponding improvement, keeping important space to the security of blasting gear and safety.
Summary of the invention
The objective of the invention is to; But a kind of safe blasting system of alarming misfire information is provided, and this installs in blast operations, and a series of detonator and explosive can detonate; Issue detection information before detonating; And measure the positional information of each detonator, for the detonator that does not detonate because of certain reason, can point out its failure (misfire) information (comprising its positional information) of detonating in the back of detonating.
In order to realize above-mentioned task, the present invention takes following technical solution:
But a kind of safe blasting system of alarming misfire information is characterized in that, this device comprises:
At least one digital primer, this digital primer has digital control module, and this number control module is used to control detonating of detonator, sends the status information of detonator;
At least one contains the coding register of GPS device; Be used for through come to confirm and recording parameters that these parameters comprise extension parameter, job parameter, identity and password, geographical position, the fault record of digital primer by direct electrical connection or radio communication for above-mentioned digital primer;
At least one initiator is used for sending command signal to above-mentioned digital primer through fetching by directly being electrically connected.
But the safe blasting system of above-mentioned alarming misfire information is used for confirming hiding misfire digital primer and method of filling explosive, it is characterized in that this method comprises the following steps:
1) before detonating, utilize GPS or LPS, measure the geography information that detonator is installed, and record is at the bursting work database;
2) in blasting process, send the detonator identity information of noting down the failure (misfire) of detonating through wired or wireless communication;
3) in radio communication, adopt long-wave communication, particularly carrier frequency 30kHz~500kHz;
4) in sending misfire information, send competition, adopt time division way for the misfire detonator of avoiding identical defer time produces;
5) after explosion, utilize these information failure judgement detonators and the explosive of hiding, and utilize the GPS device to assist to find these detonators and explosive.
But the safe blasting system of alarming misfire information of the present invention can monitored and record the explosion fault at a distance, also can be used in rapid analysis and verification are carried out in the geographical position that hides explosive.
Description of drawings
Fig. 1 is a blasting system block diagram of the present invention;
Fig. 2 is the circuit block diagram of the digital control module shown in Fig. 1;
Fig. 3 is the block diagram of the coding record device electronic section that shows among Fig. 1;
The embodiment that provides below in conjunction with accompanying drawing and inventor does further detailed description to the present invention.
The specific embodiment
In the specific embodiment of following first-selection, but the present invention provides a detonator to the failure of detonating to carry out the safe blasting system of the alarming misfire information of assist location.This device utilizes global positioning system (GPS) or local positioning system (LPS), and it is for finding not quick-fried detonator and explosive that useful reference information is provided.
The invention provides the important improvement of a security in blasting industry, the present invention will be to the control of explosion fault by the overall process that only before implementing explosion, was extended to whole bursting work in the past.In the embodiment of first-selection, the present invention possibly relate between the assembly of blasting gear, or between the relevant detonator, or the intercommunication mutually between the assembly of blasting gear and the relevant detonator, and such intercommunication mutually possibly relate to electronic communication or radio communication.Like this, at least in specific embodiment, but the safe blasting system of alarming misfire information of the present invention can monitor and record the explosion fault at a distance, also can carry out rapid analysis and verification to the geographical position that hides explosive.
According to technical scheme of the present invention, but provided a kind of embodiment of safe blasting system of alarming misfire information here.But the safe blasting system of the alarming misfire information of present embodiment can to an explosion incident, be controlled detonating of a detonator at least at an explosion scene.
This device comprises:
At least one digital primer, this digital primer has digital control module, and this number control module is used to control detonating of detonator, sends the status information of detonator;
At least one coding record device; Be used for through coming to confirm and recording parameters that for above-mentioned digital primer these parameters include but not limited to: extension parameter, job parameter, identity and the password of detonator, geographical position, fault record etc. by direct electrical connection or radio communication.
At least one initiator is used for through sending command signal to above-mentioned digital primer by direct electrical connection or radio communication.
Wherein, the digital primer of digital control module is connecting explosive, and each digital primer all is suitable for receiving command signal and feedback states information by direct electrical connection or radio communication.These command signals are sent or are propagated by initiator, and the status information of its feedback is noted down by at least one relevant coding register, and the content of record comprises:
Confirming a misfire for each digital primer indicates.
For indicating, each misfire confirms that is sent a parameter.
The digital primer of record misfire is also avoided the record conflict.
But this coding register is confirmed a parameter for an assembly in the safe blasting system of alarming misfire information.
Determine whether that this parameter and at least one authorized parameter are complementary.
If above-mentioned parameter is consistent with at least one authorized parameter; This parameter also state with digital primer is relevant, will cause subsequently above-mentioned at least one digital primer maybe at least one assembly in this device keep or adopt one to be suitable for the active state that causes that at least one above-mentioned digital primer is excited.
Above-mentioned digital control module, it can be connected on a kind of detonator and influence the ignition of detonator with a kind of controlled way, constitutes a kind of digital primer.But this digital control module is connected with initiator through the encoded recording device in the safe blasting system of two leads and alarming misfire information.This number control module includes (Fig. 2) at least:
A modulation module in order to communicating by letter of completion and system, realizes the parameter setting to module.
A radio transmitter in order to when the connection lead is blown up, sends to the misfire fault message of detonator the coding register of system.
Above-mentioned digital control module also comprises system's energy storage capacitor and an igniting storage capacitor; Be connected with electric power controller; Wherein storing electric energy and beginning back detonator self-powered to guarantee explosion, these electric energy be the basis with the electric power signal that is flowed in the lead and produce by fairing.Because igniting storage capacitor and system's energy storage capacitor split, detonator will compare safety in the explosion preparation work.
The core of above-mentioned digital control module is a microprocessor, wherein has inner general nonvolatile storage and A/D.The identity that stores module with detonate password, in order to system identification with prevent disabled user's detonating capsule.And handle the extension parameter of detonator, to realize accurate delay blasting.Microprocessor receives operating energy from system's energy storage capacitor.In addition, be connected with a firing circuit between digital control module igniter head in igniting energy storage capacitor and detonator, so that under the control of microprocessor, give the electric energy that the detonator that is connected provides is enough to make its ignition from the igniting energy storage capacitor.This firing circuit can also be detected by microprocessor, ensures the reliability of bursting work by this.
The block diagram of coding register electronic section is referring to Fig. 3, and the coding register is used to parameter to digital primer is set, and the internal state of inspection digital primer is measured the installation site of detonator and the misfire information of monitoring record detonator.This coding register is connected with digital primer through two leads, and two leads are used for the proper communication between detonator and device when intact.If when in blasting process, being blown up, they are used as antenna and use.
A modulation-demodulation circuit and a wireless receiving circuit are arranged in the above-mentioned coding register, and they have constituted the reliable feedback passage to misfire information.Other has a locating module, and this locating module can be GPS or LPS, is used for measuring the geography information that detonator is installed.
The core of this coding register is a microprocessor (MCU), has inner general nonvolatile storage and A/D in the microprocessor, in order to the work of control coding register.Microprocessor also has keyboard, mains charger, buzzer and display, and man-machine interface is provided.In addition, also comprise a database, be used to write down the bursting work data.
Above-mentioned initiator, its these digital primer that are used to detonate.This initiator is connected with digital primer through two leads, utilizes a modem to communicate by letter with digital primer.
The core of initiator is a microprocessor, and a power supply that the voltage that detonates can be provided is arranged.Initiator charges to digital primer through order, to accomplish the required energy of a charge deposit of detonator igniting.The more common charging modes together of this charging modes one by one is lower to the power requirement of initiator.Initiator makes detonator get into extension countdown state through sending ignition order, accomplishes detonating of a series of explosives with this.In addition, the required data of this operation of data-base recording are arranged, help bursting work to accomplish.
Digital control module will explode to fall and can not launch any signal when normally the detonating of detonator with detonator together.Detonator is excellent when breaking down when detonating, and digital control module changes misfire information over to and sends program, through the identity information of modulation circuit or radio transmitter sending module after igniting output signal sends.Coding record device is through demodulator circuit or wireless receiving circuit monitoring detonator information; Just can learn the detonator of misfire in case receive the identity information of module; The detonator geography information record that the encoded recording device is measured when installing according to detonator again, the approximate location that the digital primer of decidable misfire and explosive are hidden.
The testing circuit of digital control module is checked the connection status of two leads, and when communicating by letter just often with the encoded recording device, misfire information sends through wired passage; When communicating by letter with the encoded recording device when undesired, misfire information sends through radio channel.At this moment, two leads are taken as the antenna use.Radio transmitter is sent signal into lead through coupling circuit, and the lead of being blown up remains in the part of detonator and coding register, plays the antenna effect respectively.
Radio communication can be any modulation demodulation system, can select the ASK mode for use, because its fairly simple cost is low, relatively is fit to the requirement of digital primer misfire information.The frequency of carrier wave can be arbitrarily, as selects long wave for use, and these all are the conventional technology in this area.
When in blasting network, the digital primer of two above misfires occurring; The competition of communication port might take place; Avoid this competition can adopt frequency division or time division way; Can select time division way for use in the present invention, through the stagger delivery time of each digital primer of an algorithm, the transmission of information is adopted to quench and is sent out mechanism.
But the safe blasting system of alarming misfire information of the present invention is used for confirming hiding misfire digital primer and method of filling explosive, comprises:
1) before detonating, utilize GPS or LPS, measure the geography information that digital primer is installed, and record is in the database of bursting work;
2) in blasting process, send the digital primer identity information of noting down detonate failure or misfire through wired or wireless communication;
3) in radio communication, adopt long-wave communication, particularly carrier frequency 30kHz~500kHz;
4) in the digital primer information of sending failure or misfire,, adopt time division way for failure or the misfire digital primer of avoiding identical defer time produces the transmission competition;
5) after explosion, utilize these information failure judgement digital primers and the explosive of hiding, and utilize GPS or LPS to assist to find these digital primers and explosive.
Every certain interval of time is launched the identity code of one group of Digital module, can avoid as far as possible like this disturbing.In order to make message brief as far as possible, select the job number of borehole in the present embodiment for use.The coding register passes through coupling capacitance with the induced signal feed-in wireless receiving circuit on the lead; After amplifying, send into demodulator circuit and carry out demodulation; Signal after the demodulation is sent into microprocessor, deposits the for example complete record of geography information formation of digital primer installation of other information in database and the database after treatment in; Utilize these records can know the operating position of digital primer, comprise the digital primer position of misfire.
In view of the randomness by the formed antenna system of explosion, what bring thus is that the signal strength signal intensity that receives is unsettled, in practice, can adopt the amplifier of band AGC, with the variation of adaptation signal intensity.
Might be buried at the explosion scene in view of antenna, adopt the strong long wave of penetration capacity as carrier frequency, the frequency of selecting for use in the present embodiment is 30kHz~500kHz.
In view of on-the-spot landforms after the explosion change, adopt the GPS navigation system, help positions the position of the digital primer of misfire.

Claims (2)

  1. But 1. the safe blasting system of an alarming misfire information, this system comprises:
    At least one digital primer, this digital primer has digital control module, and this number control module is used to control detonating of detonator, sends the status information of detonator;
    At least one contains the coding register of positioner; Be used for through come to confirm and recording parameters that these parameters comprise extension parameter, job parameter, identity and password, geographical position and the fault record of digital primer by direct electrical connection or radio communication for above-mentioned digital primer;
    At least one initiator is used for through sending command signal to above-mentioned digital primer by direct electrical connection or radio communication;
    It is characterized in that described digital primer control module comprises:
    An esd protection module, the esd protection module links to each other with rectification module;
    A modulation module in order to communicating by letter of completion and system, realizes the parameter setting to module.
    A radio transmitter in order to when connecting lead and blown up, sends to the coding register with the misfire fault message of digital primer;
    A microprocessor has inner general nonvolatile storage and A/D in the microprocessor, be used for the work of control coding register;
    A firing circuit is so that give the electric energy that the digital primer that is connected provides is enough to make its ignition from the igniting energy storage capacitor under the control of microprocessor;
    Above-mentioned digital control module also comprises system's energy storage capacitor and an igniting storage capacitor; Be connected with power management module; Wherein storing electric energy and beginning back digital primer self-powered to guarantee explosion, these electric energy be the basis with the electric power signal that is flowed in the lead and produce by fairing.
    The described coding register that contains positioner comprises:
    A microprocessor, this microprocessor are the cores of coding register, have inner general nonvolatile storage and A/D in the microprocessor, in order to the work of control coding register; Comprise keyboard, display, buzzer, mains charger interface;
    Modulation module and a wireless receiving and dispatching control module, they have constituted the reliable feedback passage to misfire information, and other has a locating module, and this locating module is GPS or LPS, is used for measuring the geography information that digital primer is installed;
    In addition, also comprise a database, be used to write down the bursting work data.
  2. 2. but the safe blasting system of the described alarming misfire information of claim 1 is used for confirming hiding misfire digital primer and method of filling explosive, it is characterized in that this method comprises the following steps:
    1) before detonating, utilize GPS or LPS, measure the geography information that digital primer is installed, and record is in the database of bursting work;
    2) in blasting process, send the digital primer identity information of noting down detonate failure or misfire through wired or wireless communication;
    3) in radio communication, adopt long-wave communication, carrier frequency 30kHz~500kHz;
    4) in the digital primer information of sending failure or misfire,, adopt time division way for failure or the misfire digital primer of avoiding identical defer time produces the transmission competition;
    5) after explosion, utilize these information failure judgement digital primers and the explosive of hiding, and utilize GPS or LPS to assist to find these digital primers and explosive.
CN200810150735A 2008-08-27 2008-08-27 Safe blasting system capable of alarming misfire information Expired - Fee Related CN101349532B (en)

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* Cited by examiner, † Cited by third party
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CN101706989B (en) * 2009-08-05 2012-06-06 廖英杰 Control system of wireless remote field programmable digital electronic detonators
CN101625220A (en) * 2009-08-20 2010-01-13 北京维深数码科技有限公司 Control method of wireless explosion system
CN101776427A (en) * 2010-01-13 2010-07-14 中国人民解放军理工大学工程兵工程学院 Multipath electric detonator priming device with self test and line fault test function and method
CN102840800B (en) * 2011-06-22 2017-09-22 北京铱钵隆芯科技有限责任公司 electronic detonator encoder
CN102435111B (en) * 2011-11-02 2014-02-19 武汉理工大学 Control and detection method for blasting network
CN102628663A (en) * 2012-03-22 2012-08-08 中冶建工集团有限公司 Recognition monitoring method of earthwork explosion squib
CN102997769B (en) * 2012-10-31 2015-04-22 江西理工大学 Method for detecting and identifying blind shot for blasting chambers
CN103307940B (en) * 2013-06-28 2015-12-09 北京丹芯灵创科技有限公司 Electronic detonator initiating net control and initiation control method thereof
CN106468526B (en) * 2016-03-03 2019-02-01 阎跃鹏 Pass through the location information of GNSS and the safe initiation managing device of specified Region Matching
CN106100958A (en) * 2016-05-20 2016-11-09 深圳炎泰丰华科技有限公司 A kind of initiation system and network detecting method thereof
CN109405689A (en) * 2017-08-15 2019-03-01 中铁四院集团岩土工程有限责任公司 A kind of quasi- quick-fried display methods of blasting network propagation of explosion
CN108732615B (en) * 2018-03-29 2023-06-09 中铁第六勘察设计院集团有限公司 Detonator detonation warning device of advanced geological prediction system by seismic wave reflection method
WO2020176939A1 (en) * 2019-03-04 2020-09-10 Voyager Innovations Pty Ltd Wireless detonation system
CN111829406B (en) * 2020-07-08 2022-10-14 北京中煤矿山工程有限公司 Intelligent identification device and identification method for lost-explosive detonators and lost-explosive in shaft construction
CN112033248B (en) * 2020-09-11 2022-10-18 新疆安能爆破工程有限公司 Method for processing blind cannon
CN114719700A (en) * 2022-04-08 2022-07-08 宏大爆破工程集团有限责任公司 Wireless detonation system and method
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

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6079333A (en) * 1998-06-12 2000-06-27 Trimble Navigation Limited GPS controlled blaster
EP1855077A2 (en) * 2005-02-16 2007-11-14 Orica Explosives Technology Pty Ltd Blasting methods and apparatus with reduced risk of inadvertent or illicit use
CN201269721Y (en) * 2008-08-27 2009-07-08 航天恒星空间技术应用有限公司 Apparatus for alarming misfire information of blasting equipment

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6079333A (en) * 1998-06-12 2000-06-27 Trimble Navigation Limited GPS controlled blaster
EP1855077A2 (en) * 2005-02-16 2007-11-14 Orica Explosives Technology Pty Ltd Blasting methods and apparatus with reduced risk of inadvertent or illicit use
CN201269721Y (en) * 2008-08-27 2009-07-08 航天恒星空间技术应用有限公司 Apparatus for alarming misfire information of blasting equipment

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
吴新霞等.数码雷管起爆系统及雷管性能测试.《爆破》.2006,第23卷(第4期),全文. *
附图1-3及权利要求1-8.

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