CN101798923A - System and method for remote control coal mine evacuation working face advance detection and forecasting - Google Patents
System and method for remote control coal mine evacuation working face advance detection and forecasting Download PDFInfo
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Abstract
The invention discloses a system and method for remote control coal mine evacuation working face advance detection and forecasting, which comprises a remote control system, a firing device, a blasting excitation system, a blasting receiving system and an anti-explosion geological advance detector host, and is characterized in that the remote control system comprises an anti-explosion computer, a remote controller master computer and a remote control slave computer; the anti-explosion computer and the remote control master computer are connected to realize duplex communication; the remote controller master computer is connected with the remote controller slave computer point to point through a cable; the remote controller slave computer is connected with the anti-explosion geological advance detector master computer to realize duplex communication; the remote control coal mine evacuation working face advance detection and forecasting system also comprises a synchronous signal detection box; and the output end of the firing device is connected with the synchronous signal detection box, the firing device outputs excitation signals to the blasting excitation system through the synchronous signal detection box, thereby preventing an operator from harm.
Description
Technical field
The present invention relates to the method and apparatus of Long-distance Control, be specifically related to the system and method for remote control coal mine evacuation working face advance detection forecast.
Background technology
In mine working face opening driving process, the soft layering in driving the place ahead, tomography, karst collapse col umns etc. poorly plastid are to bring out coal gas, the importantly quality factor of outstanding disaster such as water, mine shaft geology forward probe and forecasting technique are a kind of important geophysical exploration means that mine " has pick to visit; to visit afterwards earlier and dig ", the main task of mine advanced prediction is to find out driving face the place ahead and tomography on every side, zone of fracture, karst collapse col umn, latent geological structure such as goaf or the poorly distributing position and the rich regimen condition thereof of plastid, take corresponding safety measure in advance, the construction safety of safeguard work face opening driving.
Existing geological advanced prediction method in mine working face opening driving process mainly contains geological analysis method, probing method, lane spy method and mine geophysical method etc.Geological analysis method forecast scope is very limited, and particularly under the situation of tunnel geological structure more complicated, the difficulty of geologic description method forecast is bigger, and accuracy is also relatively poor.Method long construction period, cost height are visited in the lane.It is limited that the probing method is once drilled distance, and cost is higher, the engineering time is longer.
In the mine geophysical method, the forward probe method that is used for coal mine evacuation working face mainly contains geological radar, DC electrical method method, the exploration of auspicious Leibo and seismic reflectuon seismic noise.Wherein geological radar, DC electrical method method, auspicious Leibo exploitation method all belong to the advanced detection technology method of leading 30～60 meters short-distance and medium-distance, and the topmost problem of these methods is the deficiency of prediction distance; Next is that the detection information amount is less, to the clear and definite index of interpretation shortage of unfavorable geological condition, more is to depend on experience; The 3rd is that the setting accuracy of unfavorable geology object is not high, particularly for being close to parallel fault zone, zone of saturation etc. with the tunnel trend.These problems and defective mainly are the information content deficiencies that the restriction, observed pattern owing to observation condition too simply gathered, and the analysis processing method is more coarse etc. causes detection accuracy not high.At present, the scale of mine and the requirement of high-yield and high-efficiency can not have been satisfied.
Seismic reflectuon seismic noise has obtained the detection example of many successful Application as a kind of main advanced detection technology in the domestic construction of tunnel of China since the nineties in 20th century.The widely used back wave detection methods such as TSP method, negative apparent velocity method, HSP method, TRT method, ISIS system that mainly contain in the at present domestic and international forward probe, these detection methods design at construction of tunnel, there is not remote control function, main many gun excitations focus that adopts, be not suitable for colliery engineering, more be not suitable for projecting mine.According to " safety regulations in coal mine ", must adopt remote explosion during projecting coal bed borehole blasting, operating personnel must evacuate in whole wind pressure ventilation outside the reverse throttle of inlet side fresh distinguished and admirable or in the refuge chamber safety place detonate, the time that enters work plane after the explosion must not be less than 30min.In view of the above, the seismic reflectuon seismic noise under the coal mine is as adopting the hammering focus, and then energy is little, can not realize long needs apart from forward probe, is subjected to the influence of tunnel initating relaxation zone simultaneously, and the quantity uniformity is relatively poor, influences Effect on Detecting.And if take the form of many gun excitations, then the blanking time between two big guns long, this is a stern challenge to the portable mine instrument working time not only, can not satisfy the needs of mine high-yield and high-efficiency.
Summary of the invention
One of technical problem to be solved by this invention is to provide a kind of remote control coal mine evacuation working face advance detection forecast system.
Two of technical problem to be solved by this invention is to provide a kind of method of remote control coal mine evacuation working face advance detection forecast.
In order one of to solve the problems of the technologies described above, according to technical scheme of the present invention, the remote control coal mine evacuation working face advance detection forecast system, comprise tele-control system, the device of firing, explosion excite be, explosion receives system, explosion-proof geologic forward probe instrument main frame, wherein
Described tele-control system control explosion-proof geologic forward probe instrument main frame is gathered the data that explosion receives system, controlling explosion-proof geologic forward probe instrument main frame simultaneously stores, handles, uploads and show the data that collect, tele-control system also receives the data that collect that explosion-proof advance geologic survey meter main frame is uploaded, and with data analysis and demonstration;
Explosion receives system and is connected with explosion-proof geologic forward probe instrument main frame by cable, and it is to convert mechanical oscillation signal to electronic signal to send to explosion-proof geologic forward probe instrument main frame that explosion receives;
Explosion-proof geologic forward probe instrument main frame is gathered the data that explosion receives system, and the data that collect are stored, handled and show, after data acquisition is finished data is uploaded to tele-control system by cable;
Be characterized in: described tele-control system comprises explosion-proof computer, remote controllers main frame, remote controller slave; Described explosion-proof computer is connected with the remote controllers main frame and carries out duplex communication; Described remote controllers main frame carries out point-to-point the connection by cable with remote controller slave; Remote controller slave is connected with explosion-proof geologic forward probe instrument main frame carries out duplex communication;
Described remote control coal mine evacuation working face advance detection forecast system also comprises the synchronization signal detection box;
The output of the described device of firing connects the synchronization signal detection box, and it is the output excitation signal that the device of firing excites to explosion by the synchronization signal detection box;
Described explosion excites the input that is to connect the device of firing by the synchronization signal detection box, and it is to excite after receiving the excitation signal that the device of firing sends by the synchronization signal detection box that explosion excites;
The input of synchronization signal detection box connects the device of firing, an output of synchronization signal detection box connects explosion-proof geologic forward probe instrument main frame, another output connection explosion excites and is, the effect of synchronization signal detection box mainly is to start synchronized sampling, after the sampling routine of explosion-proof geologic forward probe instrument main frame starts, explosion-proof geologic forward probe instrument main frame is powered to the synchronization signal detection box, the online detection explosion of synchronization signal detection box excites the excited state that is, excite moment, the synchronization signal detection box detects excitation signal and exports to explosion-proof geologic forward probe instrument main frame, trigger explosion-proof geologic forward probe instrument main frame synchronized sampling, realize exciting and sample accurately synchronously.
The effect of described explosion-proof computer is by remote controllers main frame, communication twisted-pair feeder and remote controller slave, control the data of explosion-proof geologic forward probe instrument main frame pick-up transducers in real time, controlling explosion-proof geologic forward probe instrument main frame simultaneously stores, handles, uploads and show the data that collect, explosion-proof computer also receives the data that collect that explosion-proof advance geologic survey meter main frame is uploaded, and data are shown.
The main effect of remote controllers main frame and remote controller slave is to realize the modulation of G.SHDSL signal and the conversion of host-host protocol, the remote controllers main frame receives the control signal of explosion-proof computer output and will output to remote controller slave by the communication twisted-pair feeder after the control signal modulation, and remote controller slave outputs to explosion-proof geologic forward probe instrument main frame with control signal; Remote controller slave receives the data that collect that explosion-proof geologic forward probe instrument main frame is uploaded simultaneously, and will output to the remote controllers main frame by the communication twisted-pair feeder after the data modem, and the remote controllers main frame upload the data to explosion-proof computer.
The present invention is based on the G.SHDSL technology, transmission range is long, bandwidth is high, communication is stable, carry out data acquisition, handle, upload and show by explosion-proof computer 101 Long-distance Control forward probe instrument main frames 2, when making underground blasting operating personnel can evacuate to beyond the safety zone away from, avoid operating personnel to come to harm, realized blowing out outward for 1000 meters exciting remote control operation with data acquisition, be fit to the actual conditions that the China's coal-mine digging is arranged, meet the requirement of " safety regulations in coal mine ".
According to a kind of preferred version of remote control coal mine evacuation working face advance detection forecast system of the present invention, described remote controllers main frame is made up of second source administration module, switched circuit, interface circuit, second central processing unit and ethernet interface circuit;
Described second source administration module provides power supply for second central processing unit, interface circuit, ethernet interface circuit and switched circuit;
The interface circuit of described remote controllers main frame carries out point-to-point the connection by cable with remote controller slave;
Second central processing unit is connected with interface circuit, ethernet interface circuit respectively, and signal is transmitted in both directions;
Ethernet interface circuit is connected with described explosion-proof computer.
According to a kind of preferred version of remote control coal mine evacuation working face advance detection forecast system of the present invention, described explosion-proof geologic forward probe instrument main frame is made up of power management module, ethernet interface circuit module, central processing unit, data acquisition module, display circuit, A/D change-over circuit;
Wherein, power management module provides power supply for ethernet interface circuit module, central processing unit, data acquisition module, display circuit, A/D change-over circuit;
The ethernet interface circuit module is connected with remote controller slave carries out duplex communication;
One end of described data acquisition module is connected with the A/D change-over circuit, receives the data signal of A/D change-over circuit output; The other end of data acquisition module is connected with the synchronization signal detection box, receives the excitation signal of synchronization signal detection box output;
Central processing unit is connected with data acquisition module, ethernet interface circuit module, display circuit respectively, and signal is transmitted in both directions; Central processing unit receives the control signal of explosion-proof computer by ethernet interface circuit module, remote controller slave and remote controllers main frame, the data acquisition module is carried out controlling of sampling, and central processing unit control display circuit shows the sampled data after handling; After sampling is finished, central processing unit will exist the data in the data acquisition module to handle, and the data after will handling upload to explosion-proof computer by ethernet interface circuit module, remote controller slave and remote controllers main frame simultaneously;
The input of display circuit is connected with central processing unit, shows the sampled data after handling;
One end of A/D change-over circuit is to be connected with the explosion reception, and the other end of A/D change-over circuit is connected with data acquisition module, and the A/D change-over circuit outputs to data acquisition module after explosion is received the processing of analog signal process and A/D conversion of system's output.
According to a kind of preferred version of remote control coal mine evacuation working face advance detection forecast system of the present invention, described data acquisition module comprises circuits for triggering, acquisition controlling unit, image data input block, acquired data storage unit, cpu interface circuit;
One end of described circuits for triggering is connected with the acquisition controlling unit, the other end of circuits for triggering is connected with the synchronization signal detection box, described circuits for triggering are subjected to the control of synchronization signal detection box to produce the synchronizing signal that begins to gather and are input to the acquisition controlling unit, guaranteed the synchronous of all channel data samplings, made all passages image data simultaneously;
The acquisition controlling unit also respectively with the image data input block, the acquired data storage unit, cpu interface circuit connects, signal is a transmitted in both directions, the acquisition controlling unit receives the control signal of central processing unit output by cpu interface circuit, after a point is finished in every collection, automatically produce the needed data read signal of walking of A/D change-over circuit, output to the A/D change-over circuit by the image data input block, the acquisition controlling unit receives the data signal that the A/D change-over circuit is exported by the image data input block simultaneously, and the data signal of A/D change-over circuit output is dumped to the acquired data storage unit; After the whole collections of default sampled point were finished, the data that the acquisition controlling unit will be stored in the acquired data storage unit outputed to central processing unit by cpu interface circuit;
One end of described image data input block is connected with the A/D change-over circuit, and the other end of image data input block is connected with the acquisition controlling unit, and the image data input block provides the passage of signal output and the passage of image data input;
Described acquired data storage unit is the image data temporary storage, when default sampled point all gather finish after, central processing unit will be stored in data in the acquired data storage unit and read and analyze and handle;
Described cpu interface circuit makes central processing unit manage the acquisition controlling unit by cpu interface circuit.
A kind of preferred version according to remote control coal mine evacuation working face advance detection forecast system of the present invention, described circuits for triggering comprise resistance R 8, R9, R11, R12, R7, R6, R10, photoelectrical coupler, wherein, resistance R 8, R9, R11, R12 constitute electric bridge.
For solve the problems of the technologies described above two, according to technical scheme of the present invention, the method for remote control coal mine evacuation working face advance detection forecast is characterized in that: carry out as follows:
The first step: in a tunnelling 40-80 rice scope, explosion is set excites and be and explosion receives system; And it is to imbed respectively with explosion reception system to be arranged in the underground hole that explosion excites;
Second step: outside the relief damper outside the distance tunnelling 1000 meters, explosion-proof computer and remote controllers main frame are set, explosion-proof computer is linked to each other with the remote controllers main frame; Near the setting device of firing explosion-proof computer and remote controllers main frame;
The 3rd step: receiving in the distance explosion is that explosion-proof geologic forward probe instrument main frame is set in tens to 200 meters scopes, near explosion-proof geologic forward probe instrument main frame, synchronization signal detection box and remote controller slave are set, the remote controllers main frame is connected with remote controller slave by cable, again remote controller slave is linked to each other with explosion-proof geologic forward probe instrument main frame; And explosion is received system link to each other with explosion-proof geologic forward probe instrument main frame with cable; The output of the device of firing is connected the input of synchronization signal detection box, and the output of synchronization signal detection box being excited with explosion with explosion-proof geologic forward probe instrument main frame respectively is to be connected again;
The 4th step: the power supply of opening explosion-proof geologic forward probe instrument main frame, explosion-proof computer, remote controllers main frame and remote controller slave;
The 5th step: between explosion-proof computer, remote controllers main frame, remote controller slave, explosion-proof geologic forward probe instrument main frame, set up communication, and to System self-test;
The 6th step: in explosion-proof computer, set up project;
The 7th step: input service surface information, acceptance point information and sampling parameter is set in explosion-proof computer;
The 8th step: after the sampling routine of explosion-proof geologic forward probe instrument main frame starts, explosion-proof geologic forward probe instrument main frame is powered to the synchronization signal detection box, the online detection explosion of synchronization signal detection box excites the excited state that is, start the device of firing and send excitation signal, it is to excite after receiving the excitation signal that the device of firing sends by the synchronization signal detection box that explosion excites; Excite moment, the synchronization signal detection box detects excitation signal and exports to explosion-proof geologic forward probe instrument main frame, trigger explosion-proof geologic forward probe instrument main frame synchronized sampling, it is to convert mechanical oscillation signal to electronic signal to send to explosion-proof geologic forward probe instrument main frame that explosion receives;
The 8th step: explosion-proof geologic forward probe instrument main frame is stored, is handled and show the data that collect, and after data acquisition is finished data is uploaded to explosion-proof computer by remote controller slave and remote controllers main frame;
The 9th step: the shot point spatial information is set in explosion-proof computer: comprise distance, the degree of depth, highly, azimuth, inclination angle, explosive payload;
The tenth step: explosion-proof computer is analyzed data and is shown.
According to a kind of preferred version of remote control coal mine evacuation working face advance detection forecasting procedure of the present invention, it is to comprise two little dose electric caps that described explosion excites, and two little dose electric caps are separately positioned in 2 shot points; Described explosion receives system and comprises 24 three-component sensors, and 24 three-component sensors are separately positioned in 24 explosion acceptance points, and described explosion acceptance point is distributed in the interval range between explosion shot point and the heading end, and near the first side of driving; The position of described explosion shot point and explosion shot point relation satisfies: distributes in both sides, tunnel bilateral symmetry, and, to the detection direction plane the time, there is an explosion shot point in projection, to overlap the shot point upright projection with the explosion acceptance point.Owing to adopt 24 three-component high-precision sensors, enriched the information content of gathering; It is to receive system with explosion to adopt and excite in the hole and receive that explosion excites, and has avoided the influence of tunnel relaxation zone, has realized simultaneously blowing out for a short time under projecting coal bed condition, thereby has reached the purpose of gathering the strong data of reliable and stable data and signal.
The beneficial effect of remote control coal mine evacuation working face advance detection forecast system of the present invention and method is:
1. the present invention is based on the G.SHDSL technology, transmission range is long, bandwidth is high, communication is stable, carry out data acquisition, handle, upload and show by explosion-proof computer 101 Long-distance Control forward probe instrument main frames 2, when making underground blasting operating personnel can evacuate to beyond the safety zone away from, avoid operating personnel to come to harm, realized blowing out outward for 1000 meters exciting remote control operation with data acquisition, be fit to the actual conditions that the China's coal-mine digging is arranged, meet the requirement of " safety regulations in coal mine ";
2. can comparatively the forecast with unerring accuracy buried structure of driving face the place ahead and lateral wall has effectively been avoided the disaster generation;
3. explosion-proof geologic forward probe instrument main frame 2 adopts Windows CE embedded control systems, and is stable, speed is fast; 24 A/D converters, the precision height; Adopt 12 road signalling channels, can realize multiple observation system observation;
4. adopt 24 three-component high-precision sensors, abundant information content of gathering;
5. to excite be to receive system with explosion to adopt and excite in the hole and receive in explosion, avoided the influence of tunnel relaxation zone, realized simultaneously blowing out for a short time under projecting coal bed condition, thereby reached the purpose of gathering the strong data of reliable and stable data and signal;
Therefore, remote control coal mine evacuation working face advance detection forecast system of the present invention and method have satisfied the demand of industry, have filled up the market vacancy, have effectively ensured underground work personnel's life security.
Description of drawings
Fig. 1 is the principle schematic of explosion-proof geologic forward probe tele-control system of the present invention.
Fig. 2 is the connection diagram of explosion-proof geologic forward probe tele-control system of the present invention.
Fig. 3 is the schematic block circuit diagram of remote controllers main frame 102 of the present invention and remote controller slave 103.
Fig. 4 is the schematic block circuit diagram of explosion-proof advance geologic survey meter main frame 2 of the present invention.Fig. 5 is the theory diagram of data acquisition module 14.
Fig. 6 is the circuit diagram of image data input block 23
Fig. 7 is the circuit diagram of circuits for triggering 21.
Fig. 8～Figure 12 is the circuit diagram of acquisition control circuit.
Figure 13 is the program flow diagram of data sampling control.
The specific embodiment
Referring to Fig. 1 and Fig. 2, a kind of remote control coal mine evacuation working face advance detection forecast system, by tele-control system 1, the device 3 of firing, synchronization signal detection box 4, explosion excite be 5, explosion receive be 6, explosion-proof geologic forward probe instrument main frame 2 constitutes, wherein, described tele-control system 1 is made of explosion-proof computer 101, remote controllers main frame 102, remote controller slave 103; Described explosion-proof computer 101 is connected with remote controllers main frame 102 and carries out duplex communication; Described remote controllers main frame 102 carries out point-to-point the connection by cable with remote controller slave 103; Remote controller slave 103 is connected with explosion-proof geologic forward probe instrument main frame 2 carries out duplex communication; Described explosion-proof geologic forward probe instrument main frame 2 collection explosions receptions are 6 data, and the data that collect are stored, handled and show, after data acquisition is finished data are uploaded to tele-control system 1 by cable; It is 6 to be connected with explosion-proof geologic forward probe instrument main frame 2 by cable that explosion receives, and the explosion reception is 6 to convert mechanical oscillation signal to electronic signal and send to explosion-proof geologic forward probe instrument main frame 2; The output of the described device 3 of firing connects synchronization signal detection box 4, and it is 5 output excitation signals that the device 3 of firing excites to explosion by synchronization signal detection box 4; It is that 5 input connects the device 3 of firing by synchronization signal detection box 4 that described explosion excites, and it is 5 to excite after receiving the excitation signal that the device 3 of firing sends by synchronization signal detection box 4 that explosion excites; The input of described synchronization signal detection box 4 connects the device 3 of firing, an output of synchronization signal detection box 4 connects explosion-proof geologic forward probe instrument main frame 2, it is 5 that another output connection explosion excites, the effect of synchronization signal detection box 4 mainly is to start synchronized sampling, after the sampling routine of explosion-proof geologic forward probe instrument main frame 2 starts, 4 power supplies of 2 pairs of synchronization signal detection boxes of explosion-proof geologic forward probe instrument main frame, it is 5 excited state that the 4 online detection explosions of synchronization signal detection box excite, start the device 3 of firing and send excitation signal, excite moment, synchronization signal detection box 4 detects excitation signal and exports to explosion-proof geologic forward probe instrument main frame 2, trigger explosion-proof geologic forward probe instrument main frame 2 synchronized samplings, realize exciting and sample accurately synchronously.
In specific embodiment, described explosion-proof computer 101 and remote controllers main frame 102 and explosion-proof advance geologic survey meter main frame 2 and remote controller slave 103 all are that the HUB by port is connected with the 10/100Base-T adaptation rate.
Wherein, described explosion-proof computer 101 adopts portable construction, the power supply of employing Ni-MH battery, the intrinsic safety explosion separation structure of holding concurrently, in described explosion-proof computer 101, be provided with simultaneously the upper computer software of tele-control system, referring to Figure 13, its main flow process comprises: project information is set, work plane information is set, acceptance point information is set, sampling parameter is set, shot point information is set, preserve data, transmit data, data analysis and demonstration, wherein, sampling parameter comprises sample frequency, sampling length and sampling channel, be provided with successfully after, can begin image data, after collection is finished, gather as needs, then circulation is carried out next time, preserves the data of gathering at last.
In specific embodiment, it is 5 to comprise two little dose electric caps that described explosion excites, and two little dose electric caps are separately positioned in shot point s 1 and the shot point s 2; It is 6 to comprise 24 three-component sensors that described explosion receives, 24 three-component sensors be separately positioned on explosion acceptance point r1, r2 ..., r24, described explosion acceptance point r1, r2 ..., r24 is distributed in the interval range between explosion shot point and the heading end, and near the first side of driving; The position of described explosion shot point s1 and explosion shot point s2 relation satisfies: distributes in both sides, tunnel bilateral symmetry, and, to the detection direction plane the time, there is an explosion shot point in projection, to overlap the shot point upright projection with the explosion acceptance point.
Referring to Fig. 3, described remote controllers main frame 102 is made up of second source administration module 108, switched circuit 104, interface circuit 105, second central processing unit 106 and ethernet interface circuit 107; Described second source administration module 108 provides power supply for second central processing unit 106, interface circuit 105, ethernet interface circuit 107 and switched circuit 104; The interface circuit 105 of described remote controllers main frame 102 carries out point-to-point the connection by cable with remote controller slave 103; Second central processing unit 106 is connected with interface circuit 105, ethernet interface circuit 107 respectively, and signal is transmitted in both directions; The ethernet interface circuit 107 of remote controllers main frame 102 is connected with described explosion-proof computer 101.The circuit structure of remote controller slave 103 is identical with the circuit structure of remote controllers main frame 102.
In specific embodiment, the interface circuit 105 of described remote controllers main frame 102 carries out point-to-point the connection by cable with the interface circuit of remote controller slave 103, and adopts the 16-TCPAM coded system, and up/downstream rate is identical.
Second central processing unit 106 is realized the modulation of G.SHDSL signal and the conversion of host-host protocol, and host-host protocol comprises ITU-T G.991.2 agreement and IEEE 802.3 agreements.
The ethernet interface circuit 107 of remote controllers main frame 102 is connected with described explosion-proof computer 101, the ethernet interface circuit of remote controller slave 103 is connected with explosion-proof geologic forward probe instrument main frame 2, and ethernet interface circuit 107 plays signal and drives and buffer action.
Referring to Fig. 4, wherein, described explosion-proof geologic forward probe instrument main frame 2 is made up of power management module 11, ethernet interface circuit module 12, central processing unit 13, data acquisition module 14, display circuit 15, A/D change-over circuit 16;
Wherein, power management module 11 provides power supply for ethernet interface circuit module 12, central processing unit 13, data acquisition module 14, display circuit 15, A/D change-over circuit 16; Ethernet interface circuit module 12 is connected with remote controller slave 103 carries out duplex communication; One end of described data acquisition module 14 is connected with A/D change-over circuit 16, receives the data signal of A/D change-over circuit 16 outputs; The other end of data acquisition module 14 is connected with synchronization signal detection box 4, receives the excitation signal of synchronization signal detection box 4 outputs; Central processing unit 13 is connected with data acquisition module 14, ethernet interface circuit module 12, display circuit 15 respectively, and signal is transmitted in both directions; Central processing unit 13 receives the control signal of explosion-proof computer 101 by ethernet interface circuit module 12, remote controller slave 103 and remote controllers main frame 102, data acquisition module 14 is carried out controlling of sampling, the sampled data that central processing unit 13 control display circuits 15 show after handling; Simultaneously after sampling is finished, central processing unit 13 will exist the data in the data acquisition module 14 to handle, and the data after will handling upload to explosion-proof computer 101 by ethernet interface circuit module 12, remote controller slave 103 and remote controllers main frame 102; The input of display circuit 15 is connected with central processing unit 13, shows the sampled data after handling; It is 6 to be connected that one end of A/D change-over circuit 16 and explosion receive, the other end of A/D change-over circuit 16 is connected with data acquisition module 14, it is after 6 analog signals process processing of exporting and A/D change, to output to data acquisition module 14 that A/D change-over circuit 16 receives explosion.
In specific embodiment, explosion-proof geologic forward probe instrument main frame 2 adopts WINDOWS CE operating system, also be provided with the software operation flow process in the explosion-proof geologic forward probe instrument main frame 2: comprise the instruction that is provided with that receives explosion-proof computer 101, set up a project, the data of gathering are stored in this item file; In explosion-proof geologic forward probe instrument main frame 2, can import relevant spatial information etc., comprise project information, work plane information, acceptance point information; Can import the sampling parameter of this time collection, comprise sample frequency, sampling length and sampling channel are provided with the shot point spatial information, after being provided with successfully, can begin image data, after collection is finished, gather as needs, then circulation is carried out next time, preserves the data of gathering at last; Wait for next project operation.
Referring to Fig. 5, described data acquisition module 14 comprises circuits for triggering 21, acquisition controlling unit 22, image data input block 23, acquired data storage unit 24, cpu interface circuit 25;
One end of described circuits for triggering 21 is connected with acquisition controlling unit 22, the other end of circuits for triggering 21 is connected with synchronization signal detection box 4, and described circuits for triggering 21 are subjected to the control of synchronization signal detection box 4 to produce the synchronizing signal that begins to gather and are input to acquisition controlling unit 22; Guaranteed the synchronous of all channel data samplings, made all passages image data simultaneously; Acquisition controlling unit 22 also respectively with image data input block 23, acquired data storage unit 24, cpu interface circuit 25 connects, signal is a transmitted in both directions, acquisition controlling unit 22 receives the control signal of central processing unit 13 outputs by cpu interface circuit 25, after a point is finished in every collection, automatically produce the A/D change-over circuit 16 needed data read signals of walking, output to A/D change-over circuit 16 by image data input block 23, acquisition controlling unit 22 receives the data signal that A/D change-over circuit 16 is exported by image data input block 23 simultaneously, and the data signal of A/D change-over circuit 16 outputs is dumped to acquired data storage unit 24; After the whole collections of default sampled point were finished, the data that acquisition controlling unit 22 will be stored in 24 li of acquired data storage unit outputed to central processing unit 13 by cpu interface circuit 25; One end of described image data input block 23 is connected with A/D change-over circuit 16, and the other end of image data input block 23 is connected with acquisition controlling unit 22, and image data input block 23 provides the passage of signal output and the passage of image data input; Described acquired data storage unit 24 is the image data temporary storage, when default sampled point all gather finish after, the data that central processing unit 13 will be stored in 24 li of acquired data storage unit are read and are analyzed and handle; Described cpu interface circuit 25 makes central processing unit 13 manage by 25 pairs of acquisition controlling unit 22 of cpu interface circuit.
The operating principle of data acquisition module 14 is: central processing unit 13 is controlled by 25 pairs of data acquisition controlling of cpu i/f unit 22, promptly judge state and parameter is set, mainly contain sample frequency, collection is counted etc., data acquisition control unit 22 is according to the requirement of central processing unit 13, automatically generate the analog-to-digital control signal of sensing data, and the sensor data after A stored in the acquired data storage unit 24, after sampling number collection to be preset is finished, data acquisition control unit 22 sends to gather finishes signal, and central processing unit 13 obtains can begin to read the data in the acquired data storage unit 24 and handle behind this signal.
Referring to Fig. 6 to Figure 12, described circuits for triggering 21 comprise resistance R 8, R9, R11, R12, R7, R6, R10, photoelectrical coupler U1, and wherein, resistance R 8, R9, R11, R12 constitute electric bridge.
The operating principle of described circuits for triggering 21 is: explosion excite be excite before, 1,2 pin of connector J1 and 3,4 pin of connector J1 link together by synchronization signal detection box 4, explosion excite be excite after, 1,2 pin of connector J1 and 3,4 pin of connector J1 are disconnected, bridge balance is destroyed, produce voltage and conducting between 1 pin of photoelectrical coupler U1 and 2 pin, output 7 pin of photoelectrical coupler U1 are low level signal by the high level upset, the triggering signal that this low level signal promptly begins as sampling; Guaranteed all channel datas samplings synchronously, make all passages image data simultaneously, guaranteed sampling and excite accurately synchronously.
After central processing unit 13 is set the parameter register of data acquisition controlling unit 22 by address bus and data/address bus, data acquisition control unit 22 promptly is ready, in case triggering signal promptly begins sample frequency and the sampling number clocking set according to central processing unit 13 after taking place effectively to trigger.
The principle of data read: after a point is finished in every collection, data acquisition control unit 22 produces the A/D change-over circuit 16 needed data read signals of walking automatically, and begin to accept data from A/D change-over circuit 16, automatically data are temporarily stored in the acquired data storage unit 24.
Single big gun acquisition controlling flow process: check whether sampling parameter to be set, as can, sampling parameter is set; The output synchronizing signal makes each channel time synchronous; The output ready signal makes data acquisition module 14 and A/D change-over circuit 16 be in and prepares the data acquisition state; When the time break input, data acquisition module 14 control A/D change-over circuits 16 carry out the A/D conversion, data acquisition module 14 beginning data acquisitions; After collection was finished, data acquisition module 14 was finished signal to central processing unit 13 output collections, and then this data acquisition finishes; Central processing unit 13 reads the image data of data acquisition module 14 storages.
The method of remote control coal mine evacuation working face advance detection forecast, carry out as follows:
The first step: in a tunnelling 40-80 rice scope, be provided with explosion excite be 5 and explosion to receive be 6, and explosion excite be 5 and explosion to receive be 6 to be embedded in respectively in the hole of underground setting;
Second step: outside the relief damper outside the distance tunnelling 1000 meters, explosion-proof computer 101 and remote controllers main frame 102 are set, explosion-proof computer 101 is linked to each other with remote controllers main frame 102; Near the setting device 3 of firing explosion-proof computer 101 and remote controllers main frame 102;
The 3rd step: receiving in the distance explosion is in 6 about 50 to 200 meters scopes explosion-proof geologic forward probe instrument main frame 2 to be set, near explosion-proof geologic forward probe instrument main frame 2, synchronization signal detection box 4 and remote controller slave 103 are set, remote controllers main frame 102 is connected with remote controller slave 103 by cable, again remote controller slave 103 is linked to each other with explosion-proof geologic forward probe instrument main frame 2; And explosion is received is that 6 usefulness cables link to each other with explosion-proof geologic forward probe instrument main frame 2; The output of the device 3 of firing is connected the input of synchronization signal detection box 4, and the output of synchronization signal detection box 4 being excited with explosion-proof geologic forward probe instrument main frame 2 and explosion respectively is 5 to be connected again;
The 4th step: the power supply of opening explosion-proof geologic forward probe instrument main frame 2, explosion-proof computer 101, remote controllers main frame 102 and remote controller slave 103;
The 5th step: between explosion-proof computer 101, remote controllers main frame 102, remote controller slave 103, explosion-proof geologic forward probe instrument main frame 2, set up communication, and to System self-test;
The 6th step: in explosion-proof computer 101, set up project;
The 7th step: input service surface information, acceptance point information and sampling parameter is set in explosion-proof computer 101; Wherein the input service surface information comprises height, radius, left and right margins, face distance, reference distance; Input acceptance point information comprises distance, the degree of depth, highly, azimuth, inclination angle; The input sample parameter is set comprises sample frequency, sampling length, sampled components and sampling channel;
The 8th step: after the sampling routine of explosion-proof geologic forward probe instrument main frame 2 starts, 4 power supplies of 2 pairs of synchronization signal detection boxes of explosion-proof geologic forward probe instrument main frame, it is 5 excited state that the 4 online detection explosions of synchronization signal detection box excite, start the device 3 of firing and send excitation signal, it is 5 to excite after receiving the excitation signal that the device 3 of firing sends by synchronization signal detection box 4 that explosion excites; Excite moment, synchronization signal detection box 4 detects excitation signal and exports to explosion-proof geologic forward probe instrument main frame 2, trigger explosion-proof geologic forward probe instrument main frame 2 synchronized samplings, it is 6 to convert mechanical oscillation signal to electronic signal and send to explosion-proof geologic forward probe instrument main frame 2 that explosion receives;
The 8th step: 2 pairs of data that collect of explosion-proof geologic forward probe instrument main frame are stored, are handled and show, after data acquisition is finished data are uploaded to explosion-proof computer 101 by remote controller slave 103 and remote controllers main frame 102;
The 9th step: in explosion-proof computer 101, the shot point spatial information is set: comprise distance, the degree of depth, highly, azimuth, inclination angle, explosive payload;
The tenth step: 101 pairs of data of explosion-proof computer are analyzed and are shown.
It is 5 to comprise two little dose electric caps that described explosion excites, and two little dose electric caps are separately positioned in shot point s1 and the shot point s2, shot point s1 and shot point s2 hole depth 1m to 2m, pitch of holes 3m to 5m; It is 6 to comprise 24 three-component sensors that described explosion receives, 24 three-component sensors be separately positioned on explosion acceptance point r1, r2 ..., r24, described explosion acceptance point r1, r2 ..., r24 hole depth 1m to 2m, the described explosion acceptance point of pitch of holes 1m to 2m r1, r2 ..., r24 is distributed in the interval range between explosion shot point and the heading end, and near the first side of driving; The position of described explosion shot point s1 and explosion shot point s2 relation satisfies: distributes in both sides, tunnel bilateral symmetry, and, to the detection direction plane the time, there is an explosion shot point in projection, to overlap the shot point upright projection with the explosion acceptance point.
In specific embodiment, described explosion acceptance point adopts the high accuracy three-component geophone.Remote control coal mine evacuation working face advance detection forecast system and method, its operating principle is that the seismic wave that little dose explosive excites is propagated with the spherical wave form in coal petrography, when running into heading end the place ahead and tunnel physical properties of rock interface on every side is the wave impedance differential boundary, when for example tomography, broken-rock zone, karst collapse col umn etc. were constructed, a part of earthquake signal reflex was returned.The signal that the high accuracy three-component geophone receives comprises seismic wave that reflects and the direct wave that directly propagates into sensor, the data that data acquisition module 14 is gathered, comprise heading end the place ahead and the tunnel seismic wave that reflects on every side, and the direct wave that directly propagates into sensor.Owing in explosion-proof computer 101, be provided with control software, it is the signal of three-component geophone that explosion-proof computer 101 can be gathered explosion reception system by remote controllers main frame 102, the explosion-proof forward probe instrument main frame 2 of remote controller slave 103 control in real time, controls explosion-proof advance geologic survey meter main frame 2 storages simultaneously, handles and upload the data that collect; Described data acquisition is finished by the data acquisition module of explosion-proof advance geologic survey meter main frame 2, explosion-proof advance geologic survey meter main frame 2 uploads to the data of gathering at last by the work plane information of explosion-proof computer 101 in conjunction with input by remote controller slave 103 and remote controllers main frame 102 after sampling is finished simultaneously, acceptance point information, the sampling parameter of shot point spatial information and setting, data are carried out spectrum analysis, velocity analysis, inverse filtering, static correction, dynamic(al) correction, stack, migration processing, the time dark conversion wait handle after, obtain dynamic elasticity parametric plot and achievement sectional drawing, again by analysis-by-synthesis, with regard to energy recognition objective body object to dynamic elasticity parametric plot and achievement sectional drawing.
Simultaneously, in explosion-proof advance geologic survey meter main frame 2, also be provided with the data acquisition control program, can project information be set, work plane information is set, acceptance point information is set, sampling parameter is set, shot point information etc. is set by explosion-proof advance geologic survey meter main frame 2, controlling explosion-proof forward probe instrument main frame 2 collection explosions receptions is to be the signal of three-component geophone, and controls explosion-proof advance geologic survey meter main frame 2 and store, handle and upload the data that collect.
Claims (7)
1. the remote control coal mine evacuation working face advance detection forecast system comprises that it is that (5), explosion receive system (6), explosion-proof geologic forward probe instrument main frame (2) that tele-control system (1), the device of firing (3), explosion excite, wherein,
Described explosion receives system (6) and is connected with explosion-proof geologic forward probe instrument main frame (2) by cable, and explosion reception system (6) converts mechanical oscillation signal to electronic signal and sends to explosion-proof geologic forward probe instrument main frame (2);
Described explosion-proof geologic forward probe instrument main frame (2) is gathered the data that explosion receives system (6), and the data that collect are stored, handled and show, after data acquisition is finished data is uploaded to tele-control system (1) by cable;
It is characterized in that: described tele-control system (1) comprises explosion-proof computer (101), remote controllers main frame (102), remote controller slave (103); Described explosion-proof computer (101) is connected with remote controllers main frame (102) and carries out duplex communication; Described remote controllers main frame (102) carries out point-to-point the connection by cable with remote controller slave (103); Remote controller slave (103) is connected with explosion-proof geologic forward probe instrument main frame (2) carries out duplex communication;
Described remote control coal mine evacuation working face advance detection forecast system also comprises synchronization signal detection box (4);
The output of the described device of firing (3) connects synchronization signal detection box (4), and it is (5) output excitation signal that the device of firing (3) excites to explosion by synchronization signal detection box (4);
It is that the input of (5) connects the device (3) of firing by synchronization signal detection box (4) that described explosion excites, and explosion excites, and to be (5) by synchronization signal detection box (4) reception fire excites behind the excitation signal that device (3) sends;
The input of described synchronization signal detection box (4) connects the device (3) of firing, an output of synchronization signal detection box (4) connects explosion-proof geologic forward probe instrument main frame (2), it is (5) that another output connection explosion excites, it is the excited state of (5) that the online detection explosion of synchronization signal detection box (4) excites, excite moment, synchronization signal detection box (4) detects excitation signal and exports to explosion-proof geologic forward probe instrument main frame (2), triggers explosion-proof geologic forward probe instrument main frame (2) synchronized sampling.
2. remote control coal mine evacuation working face advance detection forecast system according to claim 1 is characterized in that: described remote controllers main frame (102) is made up of second source administration module (108), switched circuit (104), interface circuit (105), second central processing unit (106) and ethernet interface circuit (107);
Described second source administration module (108) is that second central processing unit (106), interface circuit (105), ethernet interface circuit (107) and switched circuit (104) provide power supply;
The interface circuit (105) of described remote controllers main frame (102) carries out point-to-point the connection by cable with remote controller slave (103);
Second central processing unit (106) is connected with interface circuit (105), ethernet interface circuit (107) respectively, and signal is transmitted in both directions;
Ethernet interface circuit (107) is connected with described explosion-proof computer (101).
3. remote control coal mine evacuation working face advance detection forecast system according to claim 2 is characterized in that: described explosion-proof geologic forward probe instrument main frame (2) is made up of power management module (11), ethernet interface circuit module (12), central processing unit (13), data acquisition module (14), display circuit (15), A/D change-over circuit (16);
Wherein, power management module (11) is that ethernet interface circuit module (12), central processing unit (13), data acquisition module (14), display circuit (15), A/D change-over circuit (16) provide power supply;
Ethernet interface circuit module (12) is connected with remote controller slave (103) carries out duplex communication;
One end of described data acquisition module (14) is connected with A/D change-over circuit (16), receives the data signal of A/D change-over circuit (16) output; The other end of data acquisition module (14) is connected with synchronization signal detection box (4), is subjected to the control of synchronization signal detection box (4);
Central processing unit (13) is connected with data acquisition module (14), ethernet interface circuit module (12), display circuit (15) respectively, and signal is transmitted in both directions; Central processing unit (13) receives the control signal of explosion-proof computer (101) by ethernet interface circuit module (12), remote controller slave (103) and remote controllers main frame (102), data acquisition module (14) is carried out controlling of sampling, and central processing unit (13) control display circuit (15) shows the sampled data after handling; Simultaneously after sampling is finished, central processing unit (13) will exist the data in the data acquisition module (14) to handle, and the data after will handling upload to explosion-proof computer (101) by ethernet interface circuit module (12), remote controller slave (103) and remote controllers main frame (102);
The input of display circuit (15) is connected with central processing unit (13), shows the sampled data after handling;
One end of A/D change-over circuit (16) receives system (6) with explosion and is connected, the other end of A/D change-over circuit (16) is connected with data acquisition module (14), A/D change-over circuit (16) outputs to data acquisition module (14) after explosion is received the processing of analog signal process and A/D conversion of system (6) output.
4. remote control coal mine evacuation working face advance detection forecast system according to claim 3 is characterized in that: described data acquisition module (14) comprises circuits for triggering (21), acquisition controlling unit (22), image data input block (23), acquired data storage unit (24), cpu interface circuit (25);
One end of described circuits for triggering (21) is connected with acquisition controlling unit (22), the other end of circuits for triggering (21) is connected with synchronization signal detection box (4), and described circuits for triggering (21) are subjected to the control of synchronization signal detection box (4) to produce the synchronizing signal that begins to gather and are input to acquisition controlling unit (22);
Acquisition controlling unit (22) also respectively with image data input block (23), acquired data storage unit (24), cpu interface circuit (25) connects, signal is a transmitted in both directions, acquisition controlling unit (22) receives the control signal of central processing unit (13) output by cpu interface circuit (25), after a point is finished in every collection, automatically produce the needed data read signal of walking of A/D change-over circuit (16), output to A/D change-over circuit (16) by image data input block (23), acquisition controlling unit (22) receive the data signal that A/D change-over circuit (16) is exported by image data input block (23) simultaneously, and the data signal of A/D change-over circuit (16) output is dumped to acquired data storage unit (24); After the whole collections of default sampled point were finished, the data that acquisition controlling unit (22) will be stored in lining, acquired data storage unit (24) outputed to central processing unit (13) by cpu interface circuit (25);
One end of described image data input block (23) is connected with A/D change-over circuit (16), the other end of image data input block (23) is connected with acquisition controlling unit (22), and image data input block (23) provides the passage of signal output and the passage of image data input;
Described acquired data storage unit (24) is the image data temporary storage, when default sampled point all gather finish after, the data that central processing unit (13) will be stored in lining, acquired data storage unit (24) are read and are analyzed and handle;
Described cpu interface circuit (25) makes central processing unit (13) manage acquisition controlling unit (22) by cpu interface circuit (25).
5. remote control coal mine evacuation working face advance detection forecast system according to claim 4, it is characterized in that: described circuits for triggering (21) comprise resistance R 8, R9, R11, R12, R7, R6, R10, photoelectrical coupler (U1), wherein, resistance R 8, R9, R11, R12 constitute electric bridge.
6. the method for remote control coal mine evacuation working face advance detection forecast is characterized in that: carry out as follows:
The first step: in a tunnelling 40-80 rice scope, being provided with that explosion excites is that (5) and explosion receive system (6); And it is that (5) and explosion receive system (6) and imbed respectively and be arranged in the underground hole that explosion excites;
Second step: outside the relief damper outside the distance tunnelling 1000 meters, explosion-proof computer (101) and remote controllers main frame (102) are set, explosion-proof computer (101) is linked to each other with remote controllers main frame (102); Near the setting device (3) of firing explosion-proof computer (101) and remote controllers main frame (102);
The 3rd step: in the distance explosion receives (6) tens to 200 meters scopes of system, explosion-proof geologic forward probe instrument main frame (2) is set, synchronization signal detection box (4) and remote controller slave (103) are set near explosion-proof geologic forward probe instrument main frame (2), remote controllers main frame (102) is connected with remote controller slave (103) by cable, again remote controller slave (103) is linked to each other with explosion-proof geologic forward probe instrument main frame (2); And explosion is received system (6) link to each other with explosion-proof geologic forward probe instrument main frame (2) with cable; The output of device (3) of will firing connects the input of synchronization signal detection box (4), and the output of synchronization signal detection box (4) being excited with explosion with explosion-proof geologic forward probe instrument main frame (2) respectively is that (5) are connected again;
The 4th step: the power supply of opening explosion-proof geologic forward probe instrument main frame (2), explosion-proof computer (101), remote controllers main frame (102) and remote controller slave (103);
The 5th step: between explosion-proof computer (101), remote controllers main frame (102), remote controller slave (103), explosion-proof geologic forward probe instrument main frame (2), set up communication, and to System self-test;
The 6th step: in explosion-proof computer (101), set up project;
The 7th step: input service surface information, acceptance point information and sampling parameter is set in explosion-proof computer (101);
The 8th step: after the sampling routine of explosion-proof geologic forward probe instrument main frame (2) starts, explosion-proof geologic forward probe instrument main frame (2) is powered to synchronization signal detection box (4), it is the excited state of (5) that the online detection explosion of synchronization signal detection box (4) excites, start the device (3) of firing and send excitation signal, explosion excites, and to be (5) by synchronization signal detection box (4) reception fire excites behind the excitation signal that device (3) sends; Excite moment, synchronization signal detection box (4) detects excitation signal and exports to explosion-proof geologic forward probe instrument main frame (2), trigger explosion-proof geologic forward probe instrument main frame (2) synchronized sampling, explosion reception system (6) converts mechanical oscillation signal to electronic signal and sends to explosion-proof geologic forward probe instrument main frame (2);
The 8th step: explosion-proof geologic forward probe instrument main frame (2) is stored, is handled and show the data that collect, and after data acquisition is finished data is uploaded to explosion-proof computer (101) by remote controller slave (103) and remote controllers main frame (102);
The 9th step: in explosion-proof computer (101), the shot point spatial information is set: comprise distance, the degree of depth, highly, azimuth, inclination angle, explosive payload;
The tenth step: explosion-proof computer (101) is analyzed data and is shown.
7. the method for remote control coal mine evacuation working face advance detection forecast according to claim 6, it is characterized in that: it is that (5) comprise two little dose electric caps that described explosion excites, and two little dose electric caps are separately positioned in shot point (s1) and the shot point (s2); Described explosion receives system (6) and comprises 24 three-component sensors, 24 three-component sensors be separately positioned on the explosion acceptance point (r1, r2 ..., r24), described explosion acceptance point (r1, r2 ..., r24) be distributed in the interval range between explosion shot point and the heading end, and near the first side of driving; The position of described explosion shot point (s1) and explosion shot point (s2) relation satisfies: distributes in both sides, tunnel bilateral symmetry, and, to the detection direction plane the time, there is an explosion shot point in projection, to overlap the shot point upright projection with the explosion acceptance point.
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