Background technology
In priming system detection technique field, the external energy that priming system is accepted regulation from input stimulates to burning or the required time of exploding and is called action time of priming system, i.e. defer time.Defer time is to investigate an importance of priming system characteristic and function.Along with the extensive employing of blasting technique in urban construction and various dismounting engineering, also more and more higher to the requirement of explosion delay precision.In order to obtain the delay precision of priming system, just must use special-purpose time keeping instrument to measuring the action time of priming system.
When priming system is measured action time, need to obtain I target signal and II target signal.Wherein, I target signal is to obtain when priming system is applied outside energy, II target signal is to utilize the physical chemistry effect that produces in the priming system mechanism, such as light, sound, heat, vibration, pressure wave, ionization phenomena, damage effect etc., obtain by the conversion from the analog quantity to the digital quantity.The time interval between I target signal and the II target signal is defer time.
The time keeping instrument that generally is used to measure the defer time of common priming systems such as electric cap or Nonel detonator can be made of starting drive, calculagraph, amplifier and detonation output detector spare.For electric cap, in to the electric cap energising, starting drive sends I target signal enabling calculagraph, sends II target signal after the detonator detonation, the detonation information that detonation output detector spare collects makes calculagraph quit work, and has so just obtained the defer time of electric cap.For Nonel detonator, at first ignite detonator by high-voltage spark, when igniting detonator, send timing signal, detonator is through the regular hour detonating primer, send II target signal after the detonation, the time difference between two signals deducts time of propagating and just is the defer time of Nonel detonator in detonator.
The defective that adopts above-mentioned time keeping instrument to measure defer time is:
1, existing time keeping instrument precision is not high, is not suitable for the priming system high to the defer time required precision, especially can't satisfy electric detonator is carried out the demand that delay precision is measured.
2, detonating of electric cap and Nonel detonator only needs energising or obtains high-voltage spark to get final product, and detonating of electric detonator needs the initiation control part to send fuze to detonator, therefore, existing time keeping instrument also can't be realized and the communicating by letter of electric detonator, the electric detonator that can't detonate, thus can't realize measurement to the electric detonator delay precision.
Summary of the invention
The purpose of this utility model is to overcome the defective of above-mentioned prior art, and a kind of sampling observation device of measuring the electric detonator delay precision that is applicable to is provided.This device can carry out two-way communication with electric detonator, the electric detonator that successfully detonates, and certainty of measurement meets the demands.
Technical purpose of the present utility model is achieved through the following technical solutions:
Electric detonator sampling observation device of the present utility model communicates by two signal bus and electric detonator.This device comprises power supply, power management module, communication module, human-computer interaction module, control module and one or more defer time and measures module.Wherein, control module is measured module with communication module, human-computer interaction module and all defer time respectively and is linked to each other, and carries out two-way communication with above-mentioned all modules respectively.Power supply is connected to power management module and communication module.The operating voltage output of power management module is connected to human-computer interaction module, control module, communication module and all defer time and measures module, to above-mentioned all module for power supply; The communication voltage output end of power management module is connected to communication module.It is outside that this device is led at all the other two ends of communication module, is connected respectively to two of signal bus.
The technical scheme of above-mentioned sampling observation device just can realize and the communicating by letter of electric detonator, and feasible accurate measurement to the electric detonator defer time becomes possibility.Control module in the electric detonator sampling observation device sends time break by communication module to electric detonator, and transmits control signal to defer time mensuration module simultaneously, starts defer time mensuration module and picks up counting, and this has just constituted I target signal.Electric detonator begins countdown after receiving time break, waits to arrive blasting cap initiation after the default defer time, and the blast information that produces of detonating constitutes II target signal, makes defer time measure module and stops timing.The time interval between above-mentioned I target signal and the II target signal is presented as the clocking information of preserving in the defer time mensuration module, the just defer time of tested electric detonator.Control module reads the clocking information in the defer time mensuration module, and is output to the human-computer interaction module demonstration.
A kind of preferred version of the present utility model is that defer time is measured module can comprise detonator signal acquisition module sum counter.Wherein, detonator signal acquisition module sum counter respectively has an end to be connected to the operating voltage output of power management module, and power management module provides this two modules work required voltage.All the other ends of detonator signal acquisition module link to each other with counter, and all the other of a counter end links to each other with control module.Counter receives I target signal in control module when electric detonator sends time break, begin counting.When blasting cap detonation, the detonator signal acquisition module is gathered the blast information of detonator, and is that data signal outputs to counter with this information translation, constitutes II target signal, makes counter stop counting.The count value that counter records can be expressed the defer time of electric detonator.
Further, above-mentioned detonator signal acquisition module can comprise detonator signal transmission channel and detonator signal treatment circuit.Wherein, detonator signal transmission channel one end communicates with tested electric detonator, and the other end communicates with the detonator signal treatment circuit, and the detonator signal treatment circuit receives the signal that the detonator signal transmission channel sends; The other end of detonator signal treatment circuit links to each other with counter, and all the other ends link to each other with the operating voltage output of power management module.Transmission channel is used for blast information such as the light of blasting cap detonation generation, sound, heat, vibration are sent to the detonator signal treatment circuit; The detonator signal treatment circuit extracts these information, and is that data signal outputs to counter with analog signal conversion, constitutes II target signal, makes counter stop counting.
Communication module in the utility model comprises signal processing module, boost module and high pressure handover module.One end of high pressure handover module is connected to control module.The high pressure handover module also has pair of terminal to be connected respectively to boost module, and another is connected respectively to the pair of output of signal processing module to terminal, and all the other pair of terminal of high pressure handover module are connected respectively to signal bus.All the other ends of boost module are connected to power supply.Signal processing module also has two ends to be connected respectively to the communication voltage output end and the operating voltage output of power management module.Signal processing module also has an end ground connection, and all the other ends are connected to control module, carries out data interaction with control module.
Boost module in the above-mentioned communication module is used for producing the required voltage that detonates of energy storage device charging to tested electric detonator, the high pressure handover module is used to finish the switching of the voltage that the sampling observation device is exported on signal bus, that is, in communication voltage and the conversion between the voltage of detonating, when making voltage on the signal bus satisfy communication respectively and when electric detonator charges to the requirement of voltage.So just realized of management and the control of sampling observation device: on the one hand,, be above-mentioned communication voltage, guaranteed security with the electric detonator communication process with the Control of Voltage on the signal bus in stage of communication to electric detonator institute energy requirement; On the other hand,, the voltage on the signal bus is switched to the high voltage of exporting by boost module in the stage of detonating, the promptly above-mentioned voltage that detonates, thus guarantee that electric detonator obtains the energy of enough reliable initiations.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the technical solution of the utility model is described in further details.
Electric detonator sampling observation device 100 provided by the utility model as shown in Figure 1, communicates by two signal bus 200 and electric detonator.This device comprises power supply 103, power management module 104, communication module 107, human-computer interaction module 102, control module 101 and defer time and measures module 106.Wherein, control module 101 is measured module 106 with communication module 107, human-computer interaction module 102 and defer time respectively and is linked to each other, and carries out two-way communication with above-mentioned all modules respectively.Power supply 103 is connected to power management module 104 and communication module 107.The operating voltage output 401 of power management module 104 is connected to human-computer interaction module 102, control module 101, communication module 107 and defer time and measures module 106, to above-mentioned all module for power supply; The communication voltage output end 403 of power management module 104 is connected to communication module 107, to communication module 107 output communication voltages.All the other two ends of communication module 107 are led to this and are installed 100 outsides, are connected respectively to two of signal bus 200.
The technical scheme of above-mentioned sampling observation device 100 just can realize and the communicating by letter of electric detonator, and feasible accurate measurement to the electric detonator defer time becomes possibility.The course of work of this device 100 is embodied as: the control module 101 in the electric detonator sampling observation device 100 sends time break by communication module 107 to electric detonator, and transmit control signal to defer time mensuration module 106 simultaneously, start defer time mensuration module 106 and pick up counting, this has just constituted I target signal.Electric detonator begins countdown after receiving time break, waits to arrive blasting cap initiation after the default defer time, and the blast information that produces of detonating constitutes II target signal, makes defer time measure module 106 and stops timing.The time interval between above-mentioned I target signal and the II target signal is presented as the clocking information of preserving in the defer time mensuration module 106, the just defer time of tested electric detonator.Control module 101 reads the clocking information in the defer time mensuration module 106, and is output to human-computer interaction module 102 demonstrations.
A kind of preferred version of the present utility model is that the defer time in this device 100 is measured module 106 can comprise detonator signal acquisition module 601 sum counters 602, as shown in Figure 2.Wherein, detonator signal acquisition module 601 sum counters 602 respectively have an end to be connected to the operating voltage output 401 of power management module 104, and power management module 104 provides this two modules work required voltage.All the other ends of detonator signal acquisition module 601 link to each other with counter 602, send above-mentioned II target signal to counter 602; All the other ends of counter 602 link to each other with control module 101, receive the above-mentioned I target signal that control module 101 is sent, and send the count value that records to control module 101.Specifically, counter 602 receives I target signal in control module 101 when electric detonator sends time break, begins counting.When blasting cap detonation, detonator signal acquisition module 601 is gathered the blast information of detonators, and is that data signal outputs to counter 602 with this information translation, constitutes II target signal, makes counter 602 stop counting.The count value that counter 602 records can be expressed the defer time of electric detonator.
Further, above-mentioned detonator signal acquisition module 601 can comprise detonator signal transmission channel 603 and detonator signal treatment circuit 604, as shown in Figure 3.Wherein, an end of detonator signal transmission channel 603 is placed near tested electric detonator, communicates with tested electric detonator, and blast information such as the sound that 300 blasts of collection detonator produce, light, heat, vibration are referring to shown in Figure 8; The other end of detonator signal transmission channel 603 communicates with detonator signal treatment circuit 604, and above-mentioned blast information is transferred to detonator signal treatment circuit 604.The other end of detonator signal treatment circuit 604 links to each other with counter 602, and all the other ends link to each other with the operating voltage output 401 of power management module 104.Transmission channel 603 is used for blast information such as the light of blasting cap detonation generation, sound, heat, vibration are sent to detonator signal treatment circuit 604; Detonator signal treatment circuit 604 extracts these information, and is that data signal outputs to counter 602 with analog signal conversion, constitutes II target signal, makes counter 602 stop counting.
Above-mentioned detonator signal transmission channel 603 can adopt that disclosed technical scheme realizes in the patent application 200920110264.7, preferably adopts the light target metering system, adopts the explode transmission of optical signal of optical fiber.Adopt the benefit of optical fiber to be: on the one hand, the Optical Fiber Transmission noenergy decays, thereby the optical signal of sufficient intensity can be provided to detonator signal treatment circuit 604; On the other hand; optical fiber can be grown the Distance Transmission optical signal; and transmission course can not be subjected to influences such as electromagnetic interference, thus the remainder that the utility model can be inspected by random samples device 100 place away from tested electric detonator, help protective device 100 and do not damage because of blasting cap detonation.
In addition, accordingly, above-mentioned detonator signal treatment circuit 604 can adopt disclosed technical scheme realization in the patent application 200920110265.1.Detonator signal treatment circuit 604 is converted to analog electrical signal by an optical-electrical converter with optical signal, and this analog electrical signal is converted to digital electric signal and exports counter 602 to after the processing of signal condition module.Preferably, above-mentioned signal condition module is made of amplifying circuit, filter circuit and comparison circuit.But adopt filter circuit filtering veiling glare signal, eliminate the influence of veiling glare, and then eliminate this device 100 environmental limitations in use, and can improve the uniformity of accuracy of measurement signals collecting.
Communication module 107 in the utility model can comprise signal processing module 240, boost module 213 and high pressure handover module 243, and this high pressure handover module 243 can be taken as a relay, as shown in Figure 4.One end of high pressure handover module 243 is connected to control module 101, also have pair of terminal to be connected respectively to boost module 213, another is connected respectively to the pair of output 50 and 50 ' of signal processing module 240 to terminal, and all the other pair of terminal are connected respectively to signal bus 200.All the other ends of boost module are connected to power supply 103.Signal processing module 240 also has two ends to be connected respectively to the communication voltage output end 403 and the operating voltage output 401 of power management module 104.Signal processing module 240 also has an end ground connection 11.All the other ends of signal processing module 240 are connected to control module 101, carry out data interaction with control module 101.Above-mentioned high pressure handover module 243 also can be taken as electronic switch.
Boost module 213 in the above-mentioned communication module 107 is used for producing the required voltage that detonates of energy storage device charging to tested electric detonator, high pressure handover module 243 is used to finish the switching of the voltage that sampling observation device 100 is exported on signal bus 200, that is, in communication voltage and the conversion between the voltage of detonating, when making voltage on the signal bus 200 satisfy communication respectively and when electric detonator charges to the requirement of voltage.The management and the control of 100 pairs of electric detonator institutes of sampling observation device energy requirement have so just been realized: on the one hand,, be above-mentioned communication voltage, guaranteed security with the electric detonator communication process with the Control of Voltage on the signal bus 200 in stage of communication; On the other hand,, the voltage on the signal bus 200 is switched to the high voltage of exporting by boost module 213 in the stage of detonating, the promptly above-mentioned voltage that detonates, thus guarantee that electric detonator obtains the energy of enough reliable initiations.
Signal processing module 240 in the above-mentioned communication module 107 can comprise signal modulation and transmission module 702 and signal demodulation receiver module 701, shown in Fig. 5-1 and Fig. 5-2.Signal modulation and transmission module 702 and signal demodulation receiver module 701 respectively have an end to be connected to the operating voltage output 401 of power management module 104.This two module also respectively has an end to be connected to control module 101, carries out data interaction with control module 101.This two module also respectively has an end ground connection 11.A modulation signal output 5 of above-mentioned signal modulation and transmission module 702 directly leads to signal processing module 240 outsides, constitutes an output 50 of signal processing module 240.Signal modulation and transmission module 702 and signal demodulation receiver module 701 are connected on by remaining end between another output 50 ' of communicate by letter voltage output end 403 and signal processing module 240 of power management module 104, that is: the communication voltage input end 4 of signal modulation and transmission module 702 is directly connected to the communication voltage output end 403 of power management module 104, another modulation signal output 5 ' of signal modulation and transmission module 702, lead to signal processing module 240 outsides via signal demodulation receiver module 701, constitute another output 50 ' of signal processing module 240, shown in Fig. 5-1; Perhaps, the communication voltage input end 4 of signal modulation and transmission module 702 is connected to the communication voltage output end 403 of power management module 104 via signal demodulation receiver module 701, another modulation signal output 5 ' of signal modulation and transmission module 702 directly leads to signal processing module 240 outsides, constitute another output 50 ' of signal processing module 240, shown in Fig. 5-2.
Signal processing module 240 in the above-mentioned communication module 107 also can adopt the embodiment shown in Fig. 5-3 to realize.Shown in Fig. 5-3, signal processing module 240 comprises signal modulation and transmission module 702 and signal demodulation receiver module 701.This two module respectively has an end to be connected to the operating voltage output 401 of power management module 104; Also respectively there is an end to be connected to control module 101, carries out data interaction with control module 101.Signal modulation and transmission module 702 and signal demodulation receiver module 701 also respectively have an end ground connection 11.The communication voltage input end 4 of signal modulation and transmission module 702 is connected to the communication voltage output end 403 of power management module 104, two modulation signal outputs 5 and 5 ' lead to signal processing module 240 outsides, constitute the pair of output 50 and 50 ' of signal processing module 240.All the other ends of signal modulation and transmission module 702 are connected to signal demodulation receiver module 701.
The preferred embodiment of the signal processing module 240 in the above-mentioned communication module 107 is to adopt the mode shown in Fig. 5-4 and Fig. 5-5 to realize.Signal processing module 240 also can comprise a transceiver toggle switch except that comprising signal modulation and transmission module 702 and signal demodulation receiver module 701, i.e. transceiver toggle switch shown in Fig. 5-4 217 and the transceiver toggle switch shown in Fig. 5-5 218.Signal modulation and transmission module 702 and signal demodulation receiver module 701 respectively have an end to be connected to the operating voltage output 401 of power management module 104, respectively have an end to be connected to the communication voltage output end 403 of power management module, and an end common ground 11 is also respectively arranged.This two module also respectively has an end to be connected to control module 101, carries out data interaction with control module 101.
In addition, shown in Fig. 5-4, the output 18 of signal demodulation receiver module 701 is also connected to an end of transceiver toggle switch 217.A modulation signal output 5 of signal modulation and transmission module 702 is connected to the other end of transceiver toggle switch 217, and another modulation signal output 5 ' directly leads to signal processing module 240 outsides, constitutes an output 50 ' of signal processing module 240.The output of above-mentioned transceiver toggle switch 217 directly leads to signal processing module 240 outsides, constitutes another output 50 of signal processing module 240.The control end of transceiver toggle switch 217 is connected to control module 101.Perhaps, shown in Fig. 5-5, the output 18 of signal demodulation receiver module 701 and an end of ground connection are connected respectively to the pair of terminal of transceiver toggle switch 218, two modulation signal outputs 5 of signal modulation and transmission module 702 and 5 ' be connected respectively to transceiver toggle switch 218 another to terminal.The pair of output of transceiver toggle switch 218 is directly led to signal processing module 240 outsides, constitutes the pair of output 50 and 50 ' of signal processing module 240.The control end of transceiver toggle switch 218 is connected to control module 101.
In the embodiment shown in Fig. 5-4 and Fig. 5-5, transceiver toggle switch 217 and transceiver toggle switch 218 have been realized the switching of signal processing module 240 at signal modulation process of transmitting and signal demodulation receiving course, so just make signal modulation process of transmitting and signal demodulating process to carry out separately respectively.
The embodiment of Fig. 5-1~Fig. 5-5 has been realized communicating by letter of sampling observation device 100 of the present utility model and tested electric detonator: signal modulation and transmission module 702 sends information by the voltage that changes on the signal bus 200 to electric detonator; Signal demodulation receiver module 701 receives the information that electric detonator sends by the variation of electric current on the detection signal bus 200.
Signal demodulation receiver module 701 in the utility model can be made of signal sampling circuit 706 and signal conditioning circuit 707, referring to Fig. 6-1.Signal conditioning circuit 707 1 ends link to each other with the operating voltage output 401 of power management module 104, and an end links to each other with control module 101, and all the other ends link to each other with signal sampling circuit 706.Signal demodulation receiver module 701 outsides are led at all the other two ends of signal sampling circuit 706, constitute the input 17 and the output 18 of signal demodulation receiver module 701 respectively.
Above-mentioned signal sampling circuit 706 is used to extract the electric current on the signal bus 200, along with the electric current on the signal bus 200 changes, pressure drop also changes on the signal sampling circuit 706, therefore, the variation that is input to the pressure drop in the signal conditioning circuit 707 can be represented the variation of electric current on the signal bus 200, and then has expressed the information that the electric detonator direction transmits.
Above-mentioned signal sampling circuit 706 can be taken as a resistance, adopts the embodiment of resistance formation sample circuit 706 simple.And resistance is a passive device, can not produce additional noise when sampling.
Above-mentioned signal sampling circuit 706 also can be taken as an electromagnetic coupler, shown in Fig. 6-2.The outside of signal demodulation receiver module 701 is led at the two ends of its primary coil 155, constitutes the input 17 and the output 18 of signal demodulation receiver module 701 respectively.The secondary coil 156 of electromagnetic coupler is connected to signal conditioning circuit 707, centre tap ground connection 11.Electromagnetic coupler is essentially on signal bus 200 inductance that inserts, its extraction also be the variation of electric current on the bus 200.Inductance is an energy storage device, can produce certain additional noise when sample of signal, but when total line stabilization, its impedance is zero, can not form pressure drop, the therefore drift that can not produce baseline.
Shown in Figure 1 is that sampling observation device 100 of the present utility model comprises the technical scheme that a defer time is measured module 106, and every sampling observation device 100 can detect the defer time of the sub-detonator of a generating at every turn.
For measuring the defer time of multiple electric detonator simultaneously, improve the detection efficiency of sampling Detection, sampling observation device provided by the utility model also can be realized by scheme shown in Figure 7.Compare with scheme shown in Figure 1, design has a plurality of defer times independent of each other to measure module 106 in this scheme, these defer times are measured module 106 and are linked to each other with the operating voltage output 401 of power management module 104 respectively, provide the work required voltage by power management module 104; These defer times are measured module 106 and also are connected respectively to control module 101, receive the above-mentioned I target signal that control module 101 is sent.The embodiment that above-mentioned all defer time measured module 106 all is applicable to embodiment shown in Fig. 7.
Fig. 8 has provided a kind of embodiment that lay at the networking of sampling observation device 100 of the present utility model when reality is used.Each defer time is measured module 106 and is sent out electric detonator 300 tested and communicate with one respectively, gathers the blast information of each tested electric detonator 300 respectively accordingly.Defer time is measured an end of detonator signal transmission channel 603 in the module 106 and should be placed near tested electric detonator 300, is used to gather information such as sound that electric detonator 300 blasts produce, light, heat, vibration; The other end of detonator signal transmission channel 603 communicates with detonator signal treatment circuit 604, is used for above-mentioned blast information is transferred to detonator signal treatment circuit 604.Detonator signal treatment circuit 604 is converted to data signal with blast information, forms II target signal.Each counter 602 begins counting when control module 101 is sent I target signal, stop counting when receiving the II target signal that each self-corresponding detonator signal treatment circuit 604 sends.The count value between I target signal and II target signal that each counter 602 is write down is the defer time of pairing tested electric detonator 300.Measure when this has just realized multiple electric detonator defer time, help improving the sampling Detection efficient of detonator in batches.