CN104596359A - Wireless detonator based on satellite time service and WIFI (wireless fidelity) communication - Google Patents
Wireless detonator based on satellite time service and WIFI (wireless fidelity) communication Download PDFInfo
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- CN104596359A CN104596359A CN201510015894.6A CN201510015894A CN104596359A CN 104596359 A CN104596359 A CN 104596359A CN 201510015894 A CN201510015894 A CN 201510015894A CN 104596359 A CN104596359 A CN 104596359A
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Abstract
The invention discloses a wireless detonator based on satellite time service and WIFI (wireless fidelity) communication. The wireless detonator comprises a housing, wherein a microprocessor module, a satellite receiver module, a WIFI communication module, a detonating control circuit module, a working power supply module and a detonating power supply module are arranged in the housing, the satellite receiver module, the WIFI communication module and a detonating control circuit are all connected with the microprocessor module, a detonating command of test and control software is sent to the microprocessor module through the WIFI communication module, a 1PPS (pulses per second) signal and time service information which enter from the satellite receiver module are resolved in real time by the microprocessor module, a detonating starting signal is sent by the microprocessor module when the time service information is consistent with time in the detonating command, and the starting signal is used as a programmed switch signal of the detonating control circuit, so as to control a high-voltage signal which is directly connected with an exploder to be on and off, so that the exploder is detonated finally. The wireless detonator has the advantages of convenience in use and safe process and can be used as a precise timing detonating control device in an explosion effect wireless testing system.
Description
Technical field
The invention belongs to Exploding test technical field, particularly relate to the wireless initiator communicated with WIFI based on satellite time transfer.
Background technology
Explosion effect test is the important foundation in the researchs such as various countries' weapons and ammunitions development, engineering protection research, battlefield firepower layout, at present based on the long line electrical measuring method of the many employings of explosion effect test of electrical testing method.It is many to there is signal cable number in the method, and scene is laid inconvenient, and shock wave can cause the problems such as interference and very noisy because " cable effect " produces spurious signal in signal-transmitting cable, and data acquisition is inconvenient with transmission, and automaticity is very low.At present along with wireless sensor technology is applied in explosion effect test by the many research institutions of development of wireless communication technology, utilize Radio Test Equipment flexible arrangement can form distributed test system, but in the existing Radio Test Equipment of explosion effect, multiple distributed test node adopts separately independently work clock and wired triggering signal, the clock of initiator cannot with the clock Complete Synchronization of multiple distributed measuring point node, therefore cannot obtain the accurate time information that signal arrives each distributed test node.If the testing equipment that explosion effect test uses and detonate and set up the time reference of Complete Synchronization between equipment, to effectively solve the testing equipment acquisition of information lock in time problem in the wireless measurement of explosion effect, this is vital to wireless distributed test, and the initiator therefore needing to carry out to carry out Wireless clock synchronization with other equipment is researched and developed.
At present along with the upgrading of the industrial requirement such as mining industry, building industry, electronic blasting system is also updated, in blast working operation, occur carrying out that intelligence is detonated, the wireless relevant initiator that detonates and the supporting digital electric detonator containing clock and memory module with it.Utilize GPS to position, utilize 3G(GPRS) carry out communicating and locating, utilize the wireless blasting system of the communications such as WIFI and ZIGBEE all to have Patents.But these systems aim at industrial explosion domain design, pay close attention to controlled in wireless, accurate delay, the functions such as complicated blasting process control, use in explosion effect test cannot be met and possess the demand with effect testing equipment synchronised clock: (1) these initiators are wirelessly connected with digital electric detonator, initiator is sent fuze and is sent the network delay with Millisecond by wireless network, clock module precision on digital electric detonator is high and cannot be synchronous with testing equipment, detonation chain itself also has certain inherent delay, and explosion effect is tested general process time and is only hundreds of millisecond, (2) these initiators do not set up that the radio communication of more difficult foundation in other words and explosion effect test macro control centre is mutual and time reference is mutual.Therefore be necessary to invent a kind of wireless initiator being applicable to explosion effect test, also can rapid triggering detonate in order to the synchronised clock set up between blast process control appliance and testing equipment.
Summary of the invention
The object of this invention is to provide a kind of wireless initiator communicated with WIFI based on satellite time transfer, this initiator designs for explosion effect testing feature, the clock high-precise synchronization with other distributed testing equipment can be ensured, the synchronous triggering of instant of detonation each distributed testing equipment can be ensured again, can as the control device for detonation of electric of accurate timing in explosion effect wireless test system.
The present invention takes following technical scheme to realize: the wireless initiator communicated with WIFI based on satellite time transfer, comprise shell, microprocessor module, DVB module, WIFI communication module, initiation control circuit module, working power module, detonating power supply module are set in the enclosure.DVB module, WIFI communication module, initiation control circuit is all connected with microprocessor module, hardware description language is used to realize navigation information process module on the microprocessor, DVB module can receive navigation and the time service information of satellite navigation system by satellite antenna, described TT&C software detonates order by WIFI communication module to microprocessor module, the 1PPS signal that microprocessor module real time parsing enters from DVB module and time service information, when time service information is consistent with the moment of detonating in order, microprocessor module sends blast enabling signal, this enabling signal is as the grammed switch signal of initiation control circuit, control the break-make of the high voltage signal be directly connected with detonator, final detonating primer.
Described DVB module is Beidou navigation satellite system receiver module or GPS navigation receiver module.
Described microprocessor module adopts fpga chip, the interface that this chip completes WIFI communication and Beidou receiver is adaptive, Hardware Description Language VHDL is utilized to realize navigation information process module thereon, complete the synchronous and positioning function of time service, as receiving the Whole Process Control core starting blast from explosion command.
Described initiation control circuit adopts high frequency sound triode and FET to complete the high-speed response (time delay is less than 10us) of initiation control signal, and in control circuit, serial connection can ensure the mechanical switch of initiation process safety.Described working power module, detonating power supply module are separated completely, the safety work of general warranty initiator.
Wireless initiator is the dedicated control device of blast process, and its security must overriding concern in design, use procedure.The wireless initiator designed in the present invention, its safety work is ensured: in (1) WIFI communication instruction, merge authentication and Dynamic Matching message by three kinds of methods, initiator only responds the right instructions that measurement and control center sends, and various accidental interference and malice wireless network control all cannot be converted into effective instruction; (2) the real-time longitude and latitude that receives of initiator with preset longitude and latitude difference of detonating larger time, wireless initiator sends warning message to TT&C software; (3) add secure mechanical switch at initiation control circuit, when detonator access binding post, blast area just makes secure mechanical switch conduction after guarding against completely.
In sum, the present invention is rational in infrastructure, it is ingenious to design, efficiently solve existing wireless initiator inherent delay comparatively large, cannot with testing equipment clock synchronous, there is the problems such as potential safety hazard, be highly suitable for and adopt wireless mode to carry out application in the explosion effect transient process test of distributed testing.
Accompanying drawing explanation
Fig. 1 is structure of the present invention composition schematic diagram.
Fig. 2 is the duty redirect figure of FPGA processor of the present invention.
Detailed description of the invention
Accompanying drawings specific embodiments of the invention.
As shown in Figure 1: the wireless initiator communicated with WIFI based on Big Dipper time service, comprise microprocessor module, DVB module, WIFI communication module, initiation control circuit module, working power module, detonating power supply module and shell, Beidou receiver, WIFI communication module, initiation control circuit are all connected with microprocessor, hardware description language is used to realize navigation information process module, encapsulation work power supply and detonating power supply in the enclosure on the microprocessor.Wherein microprocessor module adopts fpga chip, the interface that this chip completes WIFI communication and Beidou receiver is adaptive, Hardware Description Language VHDL is utilized to realize navigation information process module thereon, complete the synchronous and positioning function of time service, as receiving the Whole Process Control core starting blast from explosion command.Described DVB module is Beidou navigation satellite system receiver module or GPS navigation receiver module, and the present embodiment adopts Beidou navigation satellite system receiver module, can be received navigation and the time service information of Beidou satellite navigation system by Beidou antenna.WIFI communication module communicates according to Transmission Control Protocol, completes reception and the transmission of the WIFI Content of Communication between FPGA and TT&C software.Initiation control circuit adopts high frequency sound triode and FET to complete the high-speed response (time delay is less than 10us) of initiation control signal, and serial connection mechanical switch ensures the safety of initiation process.Working power module, detonating power supply module are separated completely, the safety work of general warranty initiator.
Described Beidou receiver module uses ATGM331C module, effectively can receive the navigation information of big-dipper satellite, its time service precision is that 20ns Beidou receiver module can upgrade current navigation information with the refresh rate of 1Hz when receiving Big Dipper satellite signal, provide rising edge simultaneously and indicate the 1PPS signal started accurate whole second, navigation information provides current longitude and latitude according to NMEA-0183 protocol format, the information such as UTC time, be connected with FPGA according to UART interface mode, the data format that FPGA will complete under UART interface mode is resolved, obtain longitude and latitude, the navigation results such as UTC time.
Described initiation control circuit module is made up of electronic boost-up circuit, mechanical switch, numerical control switch, detonator binding post.Electronic boost-up circuit comprises transistor concussion, transformer boost and rectifying and wave-filtering three part composition, and this circuit start work when mechanical switch closes, forms stable high direct voltage for detonating primer.The moment detonating primer that detonates that wireless initiator is only being preset, therefore adds numerical control switch before detonator binding post, the initiation control Pulse Width Control break-make that this numerical control switch is sent by FPGA after electronic boost-up circuit.These numerical control switchs of apparatus design such as the relay commonly used if take, analog switch can bring the time delay of Millisecond, and this wireless initiator need the time delay of this numerical control switch little, by larger current.For realizing this numerical control switch, the control impuls of the Transistor-Transistor Logic level exported by FPGA is input in first order triode, the FET of on off state is operated in through the Current amplifier rear drive second level, these two pipes all select the pipe of high frequency sound, big current to realize, and can complete the numerical control switch being only musec order time delay.
Specific works process is as follows: include the wireless initiator communicated with WIFI based on Big Dipper time service in explosion effect wireless distributed test macro.Before carrying out explosion effect test, TT&C software sends clocked flip order by wireless WIFI network to wireless initiator and wireless On-board test equipment, utilize the mature big-dipper satellite navigation system of China, use Beidou receiver effectively can receive satellite navigation signals, carried out the parsing of navigation information by the FPGA processor be connected with Beidou receiver, can realize wireless initiator and the equal Precision Clock Synchronization of testing equipment in universal time.Initiator upgrades calibration local zone time according to Beidou receiver afterwards, arrive preset detonate the moment time initiator send control impuls, this impulse action is in initiation control circuit, the numerical control switch conducting of initiation control circuit is made to cause blasting cap initiation, this detonator uses ordinary electronic detonator, is connected with the detonator binding post of detonation chain by wired leads.Due to testing equipment and wireless initiator clock synchronous and know the moment of detonating in advance, therefore can to get off blast process data by complete documentation, these data have the synchronous temporal information of the whole network simultaneously.
Shown in accompanying drawing 2, the duty redirect of FPGA processor: first receive the initiation control order of TT&C software by WIFI module, extracts in control command the latitude and longitude coordinates that comprises point initiation and detonates the moment; Then the navigation information of the current Beidou receiver of real-time judge and the relation in detonate point initiation and moment of detonating in order, when the position of wireless initiator is less than certain threshold value with the position longitude and latitude difference of detonating in order, think it is safe point initiation herein, be greater than this threshold value then by WIFI network to TT&C software feedback information, when front for the moment of detonating 1 second of Big Dipper time service time, FPGA entered the moment acknowledgement state that accurately detonates; Finally, at the moment acknowledgement state that accurately detonates, FPGA utilizes inner phaselocked loop to produce high frequency doubling clock, utilizes the rising edge of this clock detection 1PPS, and first the 1PPS signal rising edge detected is for detonate the moment accurately, and now FPGA sends initiation control pulse.
The wireless initiator of the present invention's design, it is its maximum feature that accurate timing detonates.The statistical accuracy of the Beidou receiver module 1PPS signal adopted is 20ns, namely the time service error between different receivers is the probability within 60ns is 0.9974, and the time reference error in the wireless distributed test macro of explosion effect between this wireless initiator and testing equipment is less than 60ns.After wireless initiator receives moment order of detonating, need to detect the rising edge of 1PPS signal corresponding to moment of detonating, the frequency doubling clock of 500MHz is adopted to calculate according to FPGA, each clock cycle is 2ns, initiation control pulse after five clock cycle 10ns can complete rising edge detection exports, and the high-speed numeric control switch of design can control blasting cap initiation within the time being less than 5us.In actual test, the binding post of this is wireless initiator connects instantaneous cap, and during wiring length about 100 meters, wireless initiator all reliably can be energized and detonate in 5us, add the time of ignition and the conduction time of detonator self, the blasting cap detonation moment is no more than 6ms apart from whole timing instant delay second.Because the time reference synchronization accuracy of initiator and testing equipment is less than 60ns, the pre-trigger therefore through 10ms is sampled, carry out afterwards triggering post-sampling within 100ms can complete synchronization record whole blast process.
By the description of above-mentioned detailed description of the invention, can find out that the present invention is rational in infrastructure, it is ingenious to design, be highly suitable for and adopt wireless mode to carry out application in the explosion effect transient process test of distributed testing.Adopt technical scheme of the present invention, the relevant initiator that known technology design details utilizing principle identical carries out improving is all within this patent protection domain.
Claims (4)
1. the wireless initiator communicated with WIFI based on satellite time transfer, comprise shell, it is characterized in that: microprocessor module, DVB module, WIFI communication module, initiation control circuit module, working power module, detonating power supply module are set in the enclosure; Described DVB module, WIFI communication module, initiation control circuit are all connected with microprocessor module, use hardware description language to realize navigation information process module on the microprocessor, DVB module can receive navigation and the time service information of satellite navigation system by satellite antenna; Described TT&C software detonates order by WIFI communication module to microprocessor module, the 1PPS signal that microprocessor module real time parsing enters from DVB module and time service information, when time service information is consistent with the moment of detonating in order, microprocessor module sends blast enabling signal, this enabling signal is as the grammed switch signal of initiation control circuit, control the break-make of the high voltage signal be directly connected with detonator, final detonating primer.
2. the wireless initiator communicated with WIFI based on satellite time transfer according to claim 1, feature is: described DVB module is Beidou navigation satellite system receiver module or GPS navigation receiver module.
3. the wireless initiator communicated with WIFI based on satellite time transfer according to claim 1, feature is: described microprocessor module adopts fpga chip, the interface that this chip completes WIFI communication and Beidou receiver is adaptive, Hardware Description Language VHDL is utilized to realize navigation information process module thereon, complete the synchronous and positioning function of time service, as receiving the Whole Process Control core starting blast from explosion command.
4. the wireless initiator communicated with WIFI based on satellite time transfer according to claim 1, feature is: described initiation control circuit adopts high frequency sound triode and FET to complete the high-speed response (time delay is less than 10us) of initiation control signal, and in control circuit, serial connection can ensure the mechanical switch of initiation process safety; Described working power module, detonating power supply module are separated completely, the safety work of general warranty initiator.
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| CN110609315A (en) * | 2019-10-15 | 2019-12-24 | 四川伟博震源科技有限公司 | Gas explosion seismic source excitation device and method based on GPS time service |
| CN111405588A (en) * | 2020-04-21 | 2020-07-10 | 中国人民解放军军事科学院国防工程研究院工程防护研究所 | High-speed wireless test network system architecture |
| CN112650046A (en) * | 2019-10-10 | 2021-04-13 | 中国石油化工股份有限公司 | Logging GPS time service method and system |
| CN114279281A (en) * | 2022-01-18 | 2022-04-05 | 北京伊拜科技有限责任公司 | Detonation control method of wireless detonator detonation network |
| CN115096154A (en) * | 2022-06-20 | 2022-09-23 | 上海芯飏科技有限公司 | Digital electronic detonator detonation controller and cascade synchronization method and system thereof |
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| CN115096154A (en) * | 2022-06-20 | 2022-09-23 | 上海芯飏科技有限公司 | Digital electronic detonator detonation controller and cascade synchronization method and system thereof |
| CN115096154B (en) * | 2022-06-20 | 2023-08-18 | 上海芯飏科技有限公司 | Digital electronic detonator initiation controller and cascade synchronization method and system thereof |
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