CN105223605A - A kind of hyperchannel sparker source system of microsecond sequential control and control method - Google Patents
A kind of hyperchannel sparker source system of microsecond sequential control and control method Download PDFInfo
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Abstract
The present invention relates to seismic exploration technique field, the hyperchannel sparker source system of particularly a kind of microsecond sequential control, comprise multiple single channel sparker source, arm processor, host computer, cross-station and and seismoreceiver; Wherein arm processor carries out signal transmission between single channel sparker source and host computer; Host computer sends steering order according to the information of single channel sparker source and cross-station transmission to arm processor; The seismic signal of seismoreceiver collection is transferred to host computer by cross-station.The present invention, by some single channel sparker sources, is assembled into system at the construction field (site), carries out centralized control with arm processor and host computer, solves the difficult problem that conventional high energy sparker source system is difficult to carry out in mountain area detection; Adopt multiple focus to discharge respectively, then record time delay, the more all single channel sparker sources of centralized control, discharge energy is superposed and is optimized, solve the problem of earthquake-wave-exciting energy shortage.
Description
Technical field
The present invention relates to seismic exploration technique field, the hyperchannel sparker source system of particularly a kind of microsecond sequential control and control method.
Background technology
On earth's surface by manual method earthquake-wave-exciting, at seismic event in underground propagation process, when running into the different rock stratum interphase of medium character, by generations reflection with reflect.When excited seismic event is enough strong, frequency spectrum is in the scope of suitable propagation, we just can by wave detector at earth's surface or downhole receiving to this seismic event, character and the structure of this seismic event and the position of earthquake source characteristic, wave detector, the subterranean strata of seismic event process are directly related, therefore can infer the character and form of subterranean strata.Here, the mission that Seismic Source System plays engine undoubtedly and learns from else's experience, it decides feasibility and the accuracy of mineral products detection.The Seismic Source System of land seismic prospecting comprises explosive source system, rams car Seismic Source System, hydraulic drive type earthquake controllable earthquake focus system, electromagnetic type earthquake controllable earthquake focus system etc.The ground electric spark-chock origin system that Chinese Academy of Sciences electrician develops successively from the last century the seventies, is applied to the Exploration Domain such as oil, geology, achieves certain effect.Along with the day by day minimizing of China's existing proven reserves mineral resources, what have is even on the verge of exhaustion, potential large ore deposit, rich ore reconnoitre significant.But early stage the features such as series of products, exist volume excessive, and field work is heavy, these Seismic Source System all will dig a well water filling or utilize water table in addition.In view of most metallic ore is mostly in mountain area, although this mode is feasible, implement extremely inconvenient.
Publication number is the detection method that the Chinese patent of 102830427A discloses that a kind of elastic wave reconnoitres use sparker source, publication number be 1632615 Chinese patent disclose intelligent control composite coherent electric sparks, they are mainly used in offshore shooting field, need wide waters, land cannot be used for and use.The publication number XW5512A sparker source that controllable electric spark seismic source circuit and Xiang Tan radio Ltd produce disclosed in the Chinese patent of 102830638A, stored electric energy is 900J only, can be used for building pile foundation, bridge pier detection, Non-destructive Testing on Metal and shallow layer exploration etc., if but detect for deep geologic, the deficiency of excitation energy brings signal attenuation, wave detector is often difficult to collect echoed signal, and engineering is difficult to carry out.Publication number is Vehicle Land spark source disclosed in the Chinese patent of 85103629, is arranged on an automobile or trailer by whole parts of focus, can brings great convenience in flat terrain to exploration, but then impracticable in mountain area.
Summary of the invention
Based on above-mentioned situation, be necessary hyperchannel sparker source system and control method that a kind of microsecond sequential control is provided.
A hyperchannel sparker source system for microsecond sequential control, comprises the single channel sparker source of multiple spaced set, the arm processor that signal is connected to described single channel sparker source, the host computer be connected with described arm processor signal, the cross-station be connected with described host computer signal and the seismoreceiver that is connected with described cross-station signal; Wherein:
Described host computer, for sending steering order to arm processor, receives and stores the seismic signal of cross-station transmission;
Described arm processor, for carrying out signal transmission between single channel sparker source and host computer;
Described multiple single channel sparker source, for the seismic event launched;
Described seismoreceiver, for gathering the seismic signal that described multiple single channel sparker source is launched;
Described cross-station, for transferring to host computer by the seismic signal of seismoreceiver collection.Further, also comprise power-supply system, described power-supply system is connected with each described single channel sparker source respectively.
Concrete, described power-supply system comprises generator and high voltage charging power supply; Described generator creating AC current, converts alternating current to high voltage direct current through high voltage charging power supply, for described single channel sparker source is charged.
Further, described single channel sparker source comprise, storage capacitor, voltage measurement module, discharge control switch, discharge cable and electric discharge transducer; Described storage capacitor is connected with described high voltage charging power supply, for storing the high voltage direct current of described high voltage charging power supply conveying; Described voltage measurement module is in parallel with described storage capacitor, and the voltage signal for the storage capacitor by measurement transfers to arm processor; Be connected by discharge cable between described storage capacitor with described electric discharge transducer, between described storage capacitor and discharge cable, be also provided with discharge control switch.
Improve as one, described single channel sparker source also comprises isolation silicon stack, and described isolation silicon stack is arranged between storage capacitor and high voltage charging power supply, for carrying out isolation and protection to storage capacitor and high voltage charging power supply in charging and discharging process.
Improve as another kind, described sparker source also comprises module of releasing, described in module of releasing in parallel with described storage capacitor, for the residual charge in storage capacitor in charge or discharge process of releasing.
Then, described sparker source also comprises trigger board, and described trigger board is connected with described discharge switch, and described trigger board is also electrically connected with described arm processor, and for receiving the control signal that arm processor sends, and the conducting of controlled discharge switch is with closed.
A control method for the hyperchannel sparker source system of microsecond sequential control, comprises the steps:
A. described multiple single channel sparker source is equidistantly embedded in detection earth's surface;
B. by host computer, steering order is sent to described arm processor, control each single channel sparker source successively and discharge;
C., after described seismoreceiver detects the seismic event that each single channel sparker source produces successively, seismic signal is transferred back to host computer through cross-station;
D. described host computer records delay time corresponding to each single channel sparker source signal peak, and calculates the difference of time delay corresponding to single channel sparker source peak value, then difference described time delay is sent to described arm processor;
E. described arm processor discharges according to the described multiple single channel sparker source of delay time difference control.
The hyperchannel sparker source system of a kind of microsecond sequential control of the present invention, the present invention does not rely on waters, simultaneously by some can the single channel sparker source of a dead lift, be assembled into system at the construction field (site), carry out centralized control with embedded chip and host computer, the high-energy sparker source system solving conventional cumbersome is difficult to carry out in mountain area a difficult problem for detection; Adopt multiple single channel sparker source to discharge respectively, then record time delay, accordingly the method for all single channel sparker sources of centralized control again, discharge energy is superposed and is optimized, solve the problem of earthquake-wave-exciting energy shortage.
Accompanying drawing explanation
Fig. 1 is the structural representation of the hyperchannel sparker source system of a kind of microsecond sequential control of the present invention;
Fig. 2 is the single channel sparker source schematic diagram of the hyperchannel sparker source system of a kind of microsecond sequential control of the present invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage more clear, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As shown in Figure 1, a hyperchannel sparker source system for microsecond sequential control, comprises multiple single channel sparker source 30, the power-supply system be connected with each described single channel sparker source 30 respectively, the arm processor 40 be connected with each single channel sparker source 30 respectively, the host computer 50 be connected with arm processor 40, the cross-station 60 be connected with described host computer 50 and the seismoreceiver 70 be connected with described cross-station 60; Wherein: described arm processor 40, for carrying out signal transmission between single channel sparker source 30 and host computer 50; Described host computer 50, sends steering order for the information transmitted according to single channel sparker source 30 and cross-station 60 to arm processor 40; Described cross-station, for transferring to host computer by the seismic signal of seismoreceiver collection.
Described seismoreceiver 70 equidistantly forms a line, be connected by patchcord with described cross-station 60, described cross-station 60 is connected by netting twine with described host computer 50, can be controlled the Real-time Collection of the releasing of residual charge and overshoot voltage on described storage capacitor 33, described single channel sparker source 30 voltage signal by host computer 50.
Power-supply system comprises generator and high voltage charging power supply; Described generator creating AC current, converts alternating current to high voltage direct current through high voltage charging power supply, for described single channel sparker source is charged.In the present embodiment, described generator is diesel-driven generator.The output of diesel-driven generator 10 connects the input of described high voltage charging power supply 20, and described diesel-driven generator 10 exports the alternating current of 220V, changes the direct current of 0 ~ 5KV through described high voltage charging power supply 20 into; Two buses are drawn in the output of described high voltage charging power supply 20, and the corresponding many group input ends of multiple described single channel sparker source 30 are all connected on these two buses by the principle that both positive and negative polarity is corresponding.
Wherein, described single channel sparker source 30 comprises isolation silicon stack 31, module of releasing 32, storage capacitor 33, voltage measurement module 34, discharge control switch 35, trigger board 36, discharge cable 37 and electric discharge transducer 38; Described storage capacitor is connected with described high voltage charging power supply, for storing the high voltage direct current of described high voltage charging power supply conveying; Described voltage measurement module is in parallel with described storage capacitor, and the voltage signal for the storage capacitor by measurement transfers to arm processor; Be connected by discharge cable between described storage capacitor with described electric discharge transducer, between described storage capacitor and discharge cable, be also provided with discharge control switch.Concrete, the positive terminal of described isolation silicon stack 31 is connected with the output cathode end of described high voltage charging power supply 20, the negative pole end of described isolation silicon stack 31 is connected with described positive terminal of releasing module 32, for carrying out isolation and protection to storage capacitor and high voltage charging power supply in charging and discharging process; The negative pole end of described module 32 of releasing is connected with the output negative pole end of described high voltage charging power supply 20, for the residual charge in storage capacitor in charge or discharge process of releasing; The two ends of module 32 of releasing described in described storage capacitor 33 is connected in parallel on; Described voltage measurement module 34 is connected in parallel on the two ends of described storage capacitor 33; The positive terminal of described discharge control switch 35 is connected with the positive terminal of described voltage measurement module 34, the negative pole end of described discharge control switch 35 is connected with the center copper cash of described discharge cable 37, and the reticulated conductive layer of described discharge cable 37 is connected with the negative pole of described storage capacitor 33; The output both positive and negative polarity of described trigger board 36 connects control end and the negative pole end of described discharge control switch 35 respectively, the input of described trigger board 36 is received on a general purpose I/O port of described arm processor 40, for receiving the control signal that arm processor sends, and the conducting of controlled discharge switch is with closed.
Described arm processor 40 can adopt STM32F103Z chip, can control 100 described single channel sparker sources 30; Module of releasing described in each 32 is made up of bleeder resistance and relay of releasing; In multiple described single channel sparker source 30 corresponding multiple described in the release control end of module 32 be plugged in together through wire, and be finally connected via wires on a general purpose I/O port of described arm processor 40, undertaken unifying to control by host computer; Described voltage measurement module 34 adopts the mode of electric resistance partial pressure, take out 0 ~ 3.6V voltage and correspond to virtual voltage 0 ~ 5KV, the voltage measurements of all passages is all at respective Display panel, and first passage to the sampling end of the described voltage measurement module 34 of N channel sends into 2 analog to digital conversion ports of described arm processor 40.Described discharge control switch 35 had not only adopted controllable silicon, but also can adopt IGBT, and described trigger board is corresponding with the type of described discharge control switch.
In the middle of described diesel-driven generator 10, high voltage charging power supply 20, multiple single channel sparker source 30, arm processor 40, host computer 50, seismoreceiver 70, this seven large ingredient of cross-station 60, every part is all separate, namely entirety is Split type structure, can dismantles, and is especially applicable to field carrying; Wherein said single channel sparker source 30 both can combinationally use, and can be used alone again.
The present invention also comprises a kind of control method of hyperchannel sparker source system of microsecond sequential control, specifically comprises the steps:
A. described multiple single channel sparker source is equidistantly embedded in detection earth's surface;
B. by host computer, steering order is sent to described arm processor, control each single channel sparker source successively and discharge;
C., after described seismoreceiver detects the seismic event that each single channel sparker source produces successively, seismic signal is transferred back to host computer through cross-station;
D. described host computer records delay time corresponding to each single channel sparker source signal peak, and calculates the difference of time delay corresponding to single channel sparker source peak value, then difference described time delay is sent to described arm processor;
E. described arm processor discharges according to the described multiple single channel sparker source of delay time difference control.
Equidistantly formed a line by seismoreceiver 70, be connected with described cross-station 60 by patchcord, described cross-station 60 is connected by netting twine with described host computer 50.By host computer, described arm processor is given an order, control multiple described single channel sparker source successively and discharge; After seismoreceiver detects the seismic event that each single channel sparker source produces successively, transfer back in host computer, host computer records delay time corresponding to each signal peak, send described arm processor again to, make it control each single channel sparker source according to their delay time difference and discharge; The parameters of described single channel sparker source is consistent as far as possible, when each focus on earth's surface at a distance of 1 meter arrangement time, each communication channel delay mistiming can be as accurate as Microsecond grade; The seismic event peak value of multiple single channel sparker sources that wave detector can be made like this to receive is superimposed, solve the problem that single channel sparker source discharge energy is not enough, investigation depth is inadequate, the energy simultaneously making again the electric discharge of multiple single channel sparker source produce is superposed to greatest extent, improves the utilization factor that electric energy conversion is seismic wave energy effectively.Take one group of wave detector first make each focus one by one electric discharge recording passback seismic event, again carry out the electric discharge of Microsecond grade sequential realize the algorithm of seismic event superposition simple, calculate accurately, avoid and adopt many group wave detectors to detect the mutual interference of multichannel seismic event and the complicacy of calculating.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1. the hyperchannel sparker source system of a microsecond sequential control, it is characterized in that, comprise the single channel sparker source of multiple spaced set, the arm processor that signal is connected to described single channel sparker source, the host computer be connected with described arm processor signal, the cross-station be connected with described host computer signal and the seismoreceiver that is connected with described cross-station signal; Wherein:
Described host computer, for sending steering order to arm processor, receives and stores the seismic signal of cross-station transmission;
Described arm processor, for carrying out signal transmission between single channel sparker source and host computer;
Described multiple single channel sparker source, for the seismic event launched;
Described seismoreceiver, for gathering the seismic signal that described multiple single channel sparker source is launched;
Described cross-station, for transferring to host computer by the seismic signal of seismoreceiver collection.
2. the hyperchannel sparker source system of microsecond sequential control as claimed in claim 1, it is characterized in that, also comprise power-supply system, described power-supply system is connected with each described single channel sparker source respectively.
3. the hyperchannel sparker source system of microsecond sequential control as claimed in claim 2, it is characterized in that, described power-supply system comprises generator and high voltage charging power supply; Described generator creating AC current, converts alternating current to high voltage direct current through high voltage charging power supply, for described single channel sparker source is charged.
4. the hyperchannel sparker source system of microsecond sequential control as claimed in claim 3, it is characterized in that, described single channel sparker source comprises: storage capacitor, voltage measurement module, discharge control switch, discharge cable and electric discharge transducer; Described storage capacitor is connected with described high voltage charging power supply, for storing the high voltage direct current of described high voltage charging power supply conveying; Described voltage measurement module is in parallel with described storage capacitor, and the voltage signal for the storage capacitor by measurement transfers to arm processor; Be connected by discharge cable between described storage capacitor with described electric discharge transducer, between described storage capacitor and discharge cable, be also provided with discharge control switch.
5. the hyperchannel sparker source system of described microsecond sequential control as claimed in claim 4; it is characterized in that; described single channel sparker source also comprises isolation silicon stack; described isolation silicon stack is arranged between storage capacitor and high voltage charging power supply, for carrying out isolation and protection to storage capacitor and high voltage charging power supply in charging and discharging process.
6. the hyperchannel sparker source system of microsecond sequential control as claimed in claim 5, it is characterized in that, described sparker source also comprises module of releasing, described in module of releasing in parallel with described storage capacitor, for the residual charge in storage capacitor in charge or discharge process of releasing.
7. the hyperchannel sparker source system of microsecond sequential control as claimed in claim 6, it is characterized in that, described sparker source also comprises trigger board, described trigger board is connected with described discharge switch, described trigger board is also electrically connected with described arm processor, for receiving the control signal that arm processor sends, and the conducting of controlled discharge switch is with closed.
8. a control method for microsecond sequential control hyperchannel sparker source system, is characterized in that, comprise the steps:
A. described multiple single channel sparker source is equidistantly embedded in detection earth's surface;
B. by host computer, steering order is sent to described arm processor, control each single channel sparker source successively and discharge;
C., after described seismoreceiver detects the seismic event that each single channel sparker source produces successively, seismic signal is transferred back to host computer through cross-station;
D. described host computer records delay time corresponding to each single channel sparker source signal peak, and calculates the difference of time delay corresponding to single channel sparker source peak value, then difference described time delay is sent to described arm processor;
E. described arm processor discharges according to the described multiple single channel sparker source of delay time difference control.
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| CN105866827A (en) * | 2016-04-18 | 2016-08-17 | 北京同度工程物探技术有限公司 | System and method for integrated control over electrical sparkle earthquake source |
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