CN103244184A - Real-time mine pressure monitoring system for downhole fully-mechanized coal mining face - Google Patents

Real-time mine pressure monitoring system for downhole fully-mechanized coal mining face Download PDF

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CN103244184A
CN103244184A CN2013101636560A CN201310163656A CN103244184A CN 103244184 A CN103244184 A CN 103244184A CN 2013101636560 A CN2013101636560 A CN 2013101636560A CN 201310163656 A CN201310163656 A CN 201310163656A CN 103244184 A CN103244184 A CN 103244184A
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data
subsystem
aboveground
ore deposit
downhole
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CN103244184B (en
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罗仁泽
张平
石明江
仝迪
赵发定
付元华
曹鹏
牛娜
李芮
杨娇
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Southwest Petroleum University
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Southwest Petroleum University
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Abstract

The invention relates to a real-time mine pressure monitoring system for a downhole fully-mechanized coal mining face. The real-time mine pressure monitoring system comprises a downhole data acquiring and processing subsystem, a downhole data receiving and transmitting duplex subsystem, a surface data receiving and transmitting duplex subsystem, a surface data processing subsystem and a surface mine pressure managing subsystem. The real-time mine pressure monitoring system adopts a low-power-consumption single-chip microcomputer as a downhole and surface data processing chip, and can realize functions of acquiring of mine pressure on-site signals, primary data processing, displaying, alarming, wireless data transmitting and controlling of the downhole portion and can realize wireless data transmitting, secondary data processing, storing, displaying and communicating with a PC (personal computer) and the like of the surface portion. Besides, the real-time mine pressure monitoring system is high in automation degree, reliable in data transmission, accurate in mine pressure monitoring, and capable of effectively instructing safety production of the fully-mechanized coal mining face. Compared with conventional monitoring equipment and other the-like monitoring system, the real-time mine pressure monitoring system is characteristic, higher in automation degree and particularly applicable to popularization in relevant engineering fields.

Description

Monitoring system during fully-mechanized mining working ore deposit, a kind of down-hole compacting
Technical field
The present invention relates to a kind of monitoring technique, particularly monitoring technique when the down-hole fully-mechanized mining working in all kinds of mine field and the compacting of ore deposit, tunnel.
Background technology
In China's coal-mine underground mining field, along with improving constantly of production capacity, mining rate increases, more the exploitation mobile safety that makes top board and support in depths is born and is put more effort to the down-hole, mine aspect potential safety hazard increases, in existing mine, the safety in production situation allows of no optimist, and mine accident has generation more.In all kinds of mine accidents, the accident that mine pressure causes ranks among the best, be mainly reflected in wall stability, the top plate supporting field of load, aspects such as hydraulic support stability, its main cause is that press in inner ore deposit, tunnel, and parameters such as lane wall pressure and periodic weighting are not gathered timely and accurately, handled and report to the police.Thereby the main means that take place of preventing accident are to reach by the pressurized situation of monitoring down-hole top board and hydraulic support row monitoring and control are compressed in the fully-mechanized mining working ore deposit.
At present, the means that are used for fully-mechanized mining working bracket support quality-monitoring are relatively backward, mainly be included in setting pressure sensor or pressure meter on the fully-mechanized mining working surface hydraulic support of down-hole, at back and wall bracket means such as strain gauge or circular chart recorder be installed.Though by instrumentations such as setting pressure table, circular chart recorder on support, in the safety in production of fully-mechanized mining working, played certain effect, but its monitoring instrument independent distribution, the down-hole difficult wiring is miscellaneous, the data acquisition poor efficiency, automaticity is low, and reasons such as data acquisition and processing (DAP) is loaded down with trivial details, information feedback period length, fails fundamentally to reach the requirement that timely guidance is produced.
Simultaneously, because development of technology has changed traditional ore deposit and has pressed monitoring means and monitoring method.The monitoring means that press in the ore deposit and method constantly are improved and improve.
The ore deposit is pressed comprehensive monitoring data Internet of Things conveying type detection system (application number: the ore deposit of 20110250695.5/CN201120320017.7) adopting is pressed monitoring means comparatively advanced under the patent of invention of being applied for by Saden idea Science and Technology Ltd. of Tai'an Cisco and the utility model coal mine, changing cable data transmission means in the past is the wireless data transmission, it uses monitored data Internet of Things formula transmission method, this system is by connecting wireless transmission at each sensor treatment circuit, the automatic network-building module, in the effective scope of wireless telecommunications, set up the monitoring sub-station of some identical functions, by the substation record data are sent to the underground monitoring base station, by optical fiber optical signal is sent to aboveground Control Room from the light mouth of monitoring base station again and finish the comprehensive monitoring that the ore deposit, down-hole is pressed.This patent system has efficiently, reliable, characteristics such as network capacity is big, it is advantageous that the data acquisition capacity of Internet of Things formula transmission method is big.Still there are many deficiencies in this system, and deficiency mainly shows following several respects, one, and system's underground monitoring point is too much, and the data acquisition amount is big, easily causes transfer of data to block up.Its two, system sets up the down-hole two-stage monitoring sub-station, system's constructions cost is higher, the transfer of data time delay is bigger.They are three years old, one-level monitoring sub-station and secondary monitoring sub-station adopt wired mode to transmit between secondary monitoring sub-station and the control room, wiring is still comparatively difficult, particularly the Minepit environment of down-hole complexity can cause damage to communication cable and optical fiber, thereby influences the stability of a system.
(application number: CN201220026066.4), the monitoring means of employing and data transfer mode are also comparatively novel and the utility model of being applied for by HeiLongJiang Science academy is based on the multi-parameter mine pressure monitoring system of ZigBee wireless telecommunications.This system adopts vibrating string type sensor that roof pressure is directly measured, and mainly utilizes roof pressure, the coupled relation between acoustic emission and the electromagnetic radiation, and what transfer of data adopted is the transmission of ZigBee wireless data.The advantage of this cover system design is, adopts vibrating string type sensor to measure roof pressure, because this sensor is the frame for movement formula, is not subjected to circuit, the influence of charged parameter such as voltage, and measuring stability is better.The cable data transmission form that also discards tradition on data-transmission mode simultaneously adopts comparatively advanced ZigBee wireless transmission, thereby has avoided the problem of mining face under mine difficult wiring.There is bigger weak point in this system, mainly contain several aspects, one, carry out pressure measxurement though the vibrating string type sensor that this system adopts can be stable, not disturbed by electrical quantity, if but select to deal with improperly at material, because factors such as residual stress, creep can have a strong impact on the stability of sensor.Its two because vibrating string type sensor is the frame for movement formula, be conversion element with the string wire, has bigger hysteresis characteristic, can only be used in static and be not more than the quasi dynamic test of 10Hz.Can't accurately measure bigger periodic weighting, hysteresis characteristic has a strong impact on the real-time data acquisition of system simultaneously.Its three, the ZigBee wireless data transfer module that this system adopts can not satisfy the data transmission distance of down-hole.Comparatively the transmission range technical specification of Cheng Shu ZigBee module is in spacious, without hindrance transmission range under, noiseless situation, distance does not wait at tens meters to several kilometers, signal for the 2.4GHz frequency band is close to and microwave property, is afraid of to stop that signal can't comparatively fast be propagated in the down-hole.Transmitting power influences transmitting range, if strengthen transmitting range, must cause system power dissipation to increase, and is unfavorable for system's operation steady in a long-term.Therefore the ZigBee wireless data transfer module that uses all can not be finished the wireless data transmission preferably from the theory to reality, and that must use signal transfer substation in communication context.Therefore this system still remains to improve and improve, and the ore deposit, down-hole presses the monitoring field still to need further to invest more.
Giving birth to designed fully mechanized mining supporter calculation of pressure machine monitoring means that on-line monitoring system adopts together by Cao also is to come production wells downforce data by monitoring fully mechanized mining supporter pressure, what wireless communication mode adopted is that aboveground down-hole RDS transmission technology is two line balance formula isolation transmission methods of radio data system, the technological merit of RDS transmission is applicable to multi-user system, distributed and Distributed Monitoring and Control System, require low to circuit, can utilize two pairs of telephone wires or twisted-pair feeder, or common quad transmission, in the occasion that one-way data transmits, can use the two-wire system transmission.Adopt the balance transmission technology, has very high anti-common mode disturbances performance, but its on-line monitoring system shortcoming is more, as adopt the RDS transmission technology, and increased the complexity of circuit, strengthened system burden, secondly, this system adopts communication extension set cycle detection pressure extension set also to be stored among the RAM, and all finish the again transmission method that is transmitted into ground together by the communication extension set of monitoring has greatly reduced the real-time of system transmissions, and the pressure of each monitoring point is changed can not effective monitoring.
Fully mechanized mining supporter safety monitoring system loyal by Li Guang and the Wu Shitao design also is by poppet pressure sensor and the post displacement of living, velocity sensor collection signal, the place of its novelty is its data communication method flexibly, be that the detection machine utilizes the CAN Bus bus communication on the one hand, upload the data to computer; By infrared, RS232 mode data acquisition to hand-held collector, is then taken to ground and uploaded to computer by modes such as RS232 on the other hand.Though the data transfer mode of this system is flexible, it exists defective more.One because the particularity of its data communication method can not reach the desired real-time of system, is unfavorable for the security monitoring of support.Its two, multiple communication modes increases the cost of system, particularly not only adopts wired but also adopt wireless mode, wire communication down-hole difficult wiring, signal is subject to electromagnetic interference.Its three, increased the workload of computer processing data, under the bigger situation of the data amount of repetition that data that portable collector is gathered and wire communication mode are gathered, computer is done the data processing work of repetition, is unfavorable for system optimization.Therefore this system still haves much room for improvement and improves.
Generally speaking, above-mentioned monitoring method and data transfer mode have the raising of matter than traditional means, but still can not satisfy the safety in production requirement of mine working face effectively.Therefore, how effectively monitoring parameters such as top board stress and wall pressure changes, how to gather ore removal exactly and press data, the decay of how to resist down-hole multipath channel signal effectively realizes the efficient data transmission, how to carry out signal analysis and processing efficiently, instruct the down-hole fully-mechanized mining working core of the present invention just of keeping the safety in production thereby how in real time compressed into the row monitoring, show and report to the police in the ore deposit, so patent of the present invention is worth promoting in the correlation engineering field and using for reference.
Summary of the invention
The present invention seeks in order to solve the problems referred to above of existing in the present mine pressure monitoring system namely: 1. gather the ore deposit accurately and press data problem; 2. resist the underground signal attenuation problem; 3. Digital Signal Analysis and Processing problem efficiently; 4. real-time ore deposit is pressed monitoring, is shown and the warning problem.Press the deficiency of monitoring means and method in order to remedy traditional ore deposit, down-hole, provide a kind of ore deposit of accurate real-time high-efficiency to press monitoring scheme, design one cover automaticity height, the ore deposit presses data acquisition more accurate, transfer of data is high efficient and reliable more, the monitoring system that more perfect functions is complete.
The technical scheme that monitoring system adopts during this ore deposit, down-hole compacting is:
(1) at first under mine fully-mechanized mining working have and gather top board stress, the sensor of hydraulic support pressure and wall pressure signal can become the signal of telecommunication with the pressure signal of work plane.Needing simultaneously has the safety power supply that working sensor is provided;
(2) the sensor is connected with the circuit module that the signal of telecommunication can be handled, this circuit module can filter invalid interfering signal, and the faint useful signal of telecommunication is amplified to the operable scope of subsequent module;
(3) the A/D module that the signal of telecommunication after the above-mentioned processing is sampled need be arranged, this module palpus figure place is higher, and precision is better, and the sampling ability is strong, can multi-channel sampling.By this module the signal of telecommunication of simulating being become the digital signal of telecommunication is that subsequent module is used.This module needs specific safe voltage power supply;
(4) by the downhole data processing module A/D module image data is carried out data in the down-hole and handle, specifically comprise a low-power scm, display, alarm.Single-chip microcomputer carries out initial analysis to data to be handled, and disposes useless interfering signal, analyzes pressure law and pressure size, shows pressure value in real time by display.The pressure alarm limit value is set, by the comparative pressure size, if reach the higher limit of setting, starts alarm, will carry out pre-alarm at mining face under mine.This processing module can spread out of the signal after the preliminary treatment.This processor needs specific power supply power supply.
(5) need a kind ofly the form of data by wireless signal to be transferred to aboveground module.This module wireless communication distance is bigger than wireless data transfer module distance commonly used, can reach several kilometers to tens kilometers, and can effectively avoid signal attenuation and external electromagnetic interference.This module needs the safety power supply power supply.
(6) abovegroundly signal is received and will receive to such an extent that signal passes to subsequent module by wireless receiving module.This part needs the safety power supply power supply.
(7) aboveground data processing module needs further analysis will handle the downhole data signal that above-mentioned module receives, and processor module comprises a low-power scm, display.Single-chip microcomputer is done after-treatment to data and is namely carried out spectrum analysis, the periodic weighting analysis, and graphical data is handled, and the force value after handling is shown that by display this module need have the PC communication interface simultaneously.This part needs specific power supply power supply.
(8) need be on PC monitoring management system during independent operating one cover ore deposit compacting, the data of processing section and show store historical data by this monitoring system on the PC received well.This system has graphic interface, the ore deposit that the shows the down-hole fully-mechanized mining working in real time line chart of buckling, and the monitoring simultaneously of many groups can be checked historical data in the interface.By the controlling alarm button mining face under mine is reported to the police simultaneously, the notice mining face under mine is carried out safety guard and personnel in the pit's safe transfer.
For realizing such scheme, the invention provides corresponding monitoring system.
Monitoring system during a kind of ore deposit compacting that realizes technique scheme, this system are sent by downhole data acquisition process subsystem, downhole data and receive duplexing subsystem, aboveground data and send and receive duplexing subsystem, aboveground data process subsystem, aboveground ore deposit pressure pipe reason subsystem and form:
(1) downhole data acquisition process subsystem: downhole data acquisition process subsystem comprises a kind of with in the lower sensor at least: be installed on strain gauge on the face roof, be installed on the pressure sensor on the hydraulic support, be installed on the pressure sensor on the wall; Comprise with the valve of hydraulic support with the sensor mounting means of each monitoring point contact and to be connected; Top board and wall are carried out embedded installation; This subsystem also comprises signal filtering amplifying circuit module; The A/D sampling module; The downhole data processor module; First warning function is realized in alarm module down-hole; The special power supply module in display apparatus module and down-hole.Downhole data acquisition process subsystem collection top board, hydraulic support, wall pressure signal carry out the data initial analysis to be handled, and the down-hole shows ore deposit pressure numerical value, and pressure threshold value is set, if then report to the police above threshold values; Press signal to pass to downhole data in the ore deposit and send the duplexing subsystem of reception.
(2) downhole data sends and receives duplexing subsystem: downhole data sends receiving subsystem and comprises the wireless data sending/receiving module at least; Connection antenna correspondingly; Underground power supply used power module; Interface unit with the communication of downhole data acquisition subsystem; The data that the duplexing subsystem of downhole data transmission reception passes over downhole data acquisition process subsystem send to aboveground, simultaneously, the specified control terminal are passed in aboveground control instruction reception; It is characterized in that described downhole data sends the sending/receiving module that receiving subsystem adopts.For opposing multipath fading effect, adopt OFDM modem and communications protocol thereof.
(3) aboveground data send and receive duplexing subsystem: aboveground data send receiving subsystem and comprise wireless data receiver module and transmitter module at least; Connection antenna correspondingly; Aboveground power supply module; With aboveground data process subsystem communications connectors spare; This subsystem receives downhole data and sends the data-signal that receives duplexing subsystem, the data that receive is passed to aboveground data subsystem process; Simultaneously, this subsystem is transferred to the down-hole with the control instruction emission that aboveground ore deposit pressure pipe reason subsystem sends, it is characterized in that the data transmitting and receiving module that described aboveground data emission receiving subsystem adopts, for opposing multipath fading effect, adopt OFDM modem and communications protocol thereof.
(4) aboveground data process subsystem: aboveground data process subsystem is by aboveground data processor; Display module; PC communication interface and agreement; Compositions such as power supply module, this subsystem carries out after-treatment with underground signal, aboveground demonstration; With the PC communication and upload the data to ore deposit pressure pipe reason subsystem.
(5) aboveground ore deposit pressure pipe reason subsystem: aboveground ore deposit pressure pipe reason subsystem is made up of the management system software that moves on the PC, this management system can realize both-way communication by computer and aboveground data process subsystem, and design has distinctive data transfer mode and communications protocol; This subsystem presses data to carry out graphical treatment to the ore deposit, and performance graph shows during with the ore deposit compacting, and the backstage store historical data is checked historical data at any time; Layout setting alarm button is judged the maximum pressure duration according to the data analysis final result, and the duration starts secondary and reports to the police greater than setting value, sends alarm command to the down-hole, realizes that aboveground down-hole reports to the police simultaneously; Simultaneously, according to alarm condition, send control instruction; The grouping switching push button is realized work plane each several part ore deposit pressure overall monitor, it is characterized in that ore deposit pressure pipe reason subsystem function is outstanding, has the management system graphic interface, performance graph shows during the ore deposit compacting, the backstage store historical data, at any time check historical data, layout setting alarm button, grouping switching push button.
In this system, the first warning function in down-hole that downhole data acquisition process subsystem comprises specifically comprises: processor sets in advance the ore deposit and presses the limit threshold values, and ore deposit pressure value is if continue greater than this threshold values, and processor sends alarm command and starts alarm, realizes reporting to the police for the first time.System has carried out analyzing and processing twice with data, and the downhole data acquisition subsystem carries out secondary data processing just, comprises according to judging the useful pressure signal, handles interfering signal, analyzes pressure law and pressure size; Aboveground data handling system is carried out the secondary data processing, namely carries out spectrum analysis, the periodic weighting analysis, and graphical data is handled.
Advantage of the present invention is:
One, the system acquisition top board, hydraulic support, the pressure of work plane key positions such as wall, in time the signal that collects being carried out initial analysis by the downhole data acquisition subsystem handles, the data processing method that the utility model that the patent of invention of applying for than Saden idea Science and Technology Ltd. of Tai'an Cisco and HeiLongJiang Science academy are applied for adopts, its mode is that the data that will collect send to ground and handle, the benefit of native system is that in time handling out useful ore deposit in the down-hole presses data, avoid useless transfer of data, effectively raise the transfer rate of useful data, avoid blocking up of transfer of data, strengthened the real-time of system; They are two years old, compare with the monitoring system that people such as Cao Tongsheng, Li Guangzhong and Wu Shitao are designed, the downhole data acquisition subsystem of this system has Presentation Function and warning function, show that in real time the ore deposit presses numerical value and take alarm signal, not only can be conducive to the underground work personnel and understand at any time that situation is pressed in the ore deposit but also the preparation that can the prior notice personnel properly protects; These characteristics be said system do not have;
They are three years old, compare with the employed ZigBee wireless telecommunications of utility model that HeiLongJiang Science academy is applied for, this system data transceiver subsystem adopts the OFDM modem, its communication distance is big, communications protocol is good, volume of transmitted data is big, signal attenuation is less, the employed means of communication of patent of invention of applying for Saden idea Science and Technology Ltd. of Tai'an Cisco compare, this system need not to arrange one-level or secondary monitoring sub-station, directly carry out aboveground and downhole data communication, not only saved the constructions cost of system but also avoided data congestion, improve real time of data transmission;
Its four, aboveground data process subsystem is carried out the data after-treatment and is shown that the ore deposit presses numerical value, is conducive to aboveground personnel and grasps the work plane ore deposit and press situation and rationally instruct safety in production.Ore deposit pressure pipe reason subsystem is in the control room, can the effective monitoring mining face under mine respectively organize the ore deposit, monitoring point and press situation, and the direct performance graph of graphical interfaces shows ore deposit buckle line, more visual pattern.Historical data in the storage regular period can be called by this management system and check that management system has alarm button, can in time report to the police and notify mining face under mine and aboveground relevant unit to do and withdraw and protect preparation; This system presses parameter to carry out Intellectualized monitoring to on-the-spot ore deposit, has data acquisition process promptly and accurately, and data send the transmission high efficient and reliable, and system power dissipation is low, to support health status with combine and adopt duty and show in real time and provide the ore deposit to press characteristics such as warning.
Description of drawings
Fig. 1 is the overall structure schematic diagram of patent system of the present invention, among the figure: 1. mineral products ground, 2. fully-mechanized mining working, 3. top board, 4. support;
Fig. 2 is the fully-mechanized mining working structural representation, among the figure; 3. top board, 5. work plane conveyer, 6. load-bearing girder steel, 7. coal seam, 8. coal-winning machine, 9. roller, 10. rock stratum;
Fig. 3 is down-hole part-structure schematic diagram, comprises; 3. top board, 4. support, 11. hydrostatic sensors, 12. signal condition amplifying circuits, 13. down-hole alarm modules, 14. down-hole LCD MODULEs, 15. down-holes are from processor module, 16. downhole wireless data transmission blocks, 21. down-hole power parts;
Fig. 4 is aboveground part-structure schematic diagram, comprises; 17. aboveground primary processor, the ore deposit pressure pipe reason system that moves on the 18.PC machine, 19. aboveground wireless data receiver modules, 20. aboveground LCD MODULEs,, 22. aboveground power units.
The specific embodiment
Monitoring system summary of the invention and technical scheme are described during fully-mechanized mining working ore deposit, down-hole of the present invention compacting, no longer do argumentation at this.
Below in conjunction with accompanying drawing system of the present invention is described further, thereby better understands system of the present invention.
As shown in Figure 1 and Figure 2, the present invention is applied to pit mining monitoring field.The fully-mechanized mining working of mine is positioned at the bottom of subterranean strata 10, and particularly for the darker mine in coal seam, the exploitation difficulty is big, and periodic weighting is not easy monitoring, often is prone to accidents.Top board 3 is used for withstanding top rock and earth, hydraulic support 4 is used for roof supporting 3 and withstands the gat wall of fully-mechanized mining working 2, coal-winning machine 8 is at advance of the face working seam 7, work plane conveyer 5 transfers out ickings, load-bearing girder steel 6 is used for support works face conveyer 5 and coal-winning machine 8, and roller 9 drives work plane conveyer 5.
As Fig. 2, Fig. 3, shown in Figure 4, system is divided into down-hole and aboveground two parts, comprises following system: downhole data acquisition process subsystem, downhole data sends and receives duplexing subsystem, aboveground data send and receive duplexing subsystem, aboveground data process subsystem, aboveground ore deposit pressure pipe reason subsystem.
The down-hole part has comprised downhole data acquisition process subsystem and downhole data sends two systems of duplexing subsystem that receive.Two subsystems all are installed in fully-mechanized mining working 2 times, and two systems all are fixed in place, support floor, can advance along with the degree of depth of fully-mechanized mining working and move.The pressurized data that the sensor assembly 11 of data acquisition subsystem is gathered tunnel wall pressure, down-hole top board 3 and hydraulic support 4, the mounting means of sensor and contact surface comprises that wall is embedded, top board is subjected to pressure type, and the valve interconnection system of hydraulic support; After data acquisition was pressed to the ore deposit in the down-hole, pressure signal was changed into the signal of telecommunication of simulation, was done filtering and was sent out big the processing by 12 pairs of signals of signal condition amplifying circuit again, enabled to reach the voltage range that subsequent module is used.In order to reduce the development cost of system, can reach again simultaneously under the prerequisite of index request of system, can select outside A/D for use and select the processor of inner integrated A/D for use.Be about to the A/D employing and be integrated on the single-chip microcomputer with the data processing, system selects low-power scm 15 for use for down hole processor, as selecting the MSP430 single-chip microcomputer.Single-chip microcomputer carries out initial analysis by A/D pin sampled signal, disposes useless interfering signal, analyzes pressure law and pressure size, shows pressure value in real time by display 14; The pressure alarm limit value is set, if reach the higher limit of setting, starts alarm 13 by the comparative pressure size; Useful signal after handling is passed to downhole data send subsystem.Downhole data sends the OFDM modem 16 that receives duplexing subsystem and carries out transfer of data and communication with single-chip microcomputer 15; OFDM modem 16 gets form to aboveground transmission with data with packet according to specific communications protocol.Part two big systems in down-hole provide the safety power supply that needs by power unit 21.
Aboveground part comprises aboveground data and sends the duplexing subsystem of reception, aboveground data process subsystem, and three systems of aboveground ore deposit pressure pipe reason subsystem form.Packet sends the OFDM modem 19 that receives duplexing subsystem by aboveground data and receives, OFDM modem 19 carries out transfer of data and communication with the processor module 17 of aboveground data process subsystem, aboveground data processing module 17 can be selected the low-power scm identical with downhole data processing module 15 for use, single-chip microcomputer 17 is done secondary analysis with the data that receive and is handled, carry out spectrum analysis, periodic weighting is analyzed, graphical data is handled, and the force value after handling is shown by display 20.Single-chip microcomputer 17 carries out communication with ore deposit pressure pipe reason subsystem 18 simultaneously, and the data after the after-treatment are sent to the enterprising line data storage of ore deposit pressure pipe reason subsystem, and graphical performance graph shows.The staff can understand down-hole each several part pressure condition in real time by this management system, instructs the fully-mechanized mining working safety in production, and the inquiry of historical data is provided simultaneously, and making reports to the police handles.The aboveground control instruction of making according to the down-hole situation can be passed through the ofdm communication transmission system, is transferred to the down-hole control terminal, takes corresponding stringent effort immediately, the generation of preventing accident.Each system of aboveground part provides required safety power supply by power unit 22.
More than be preferred embodiment of the present invention and design graphic; above-mentioned preferred embodiment and designing graphicly only illustrates; be not for restriction interest field of the present invention; all with equalization technological means or be the interest field that contained of the application's scope and the implementer does not all break away from protection scope of the present invention.

Claims (6)

1. monitoring system during the compacting of fully-mechanized mining working ore deposit, a down-hole is characterized in that:
This system is made up of downhole data acquisition process subsystem, the duplexing subsystem of downhole data transmission reception, the duplexing subsystem of aboveground data transmission reception, aboveground data process subsystem, aboveground ore deposit pressure pipe reason subsystem;
(1) downhole data acquisition process subsystem: downhole data acquisition process subsystem comprises a kind of with in the lower sensor at least: be installed on strain gauge on the face roof, be installed on the pressure sensor on the hydraulic support, be installed on the pressure sensor on the wall; Comprise with the valve of hydraulic support with the sensor mounting means of each monitoring point contact and to be connected; Top board and wall are carried out embedded installation; This subsystem also comprises signal filtering amplifying circuit module; The A/D sampling module; The downhole data processor module; First warning function is realized in alarm module down-hole; The special power supply module in display apparatus module and down-hole; Downhole data acquisition process subsystem collection top board, hydraulic support, wall pressure signal carry out the data initial analysis to be handled, and the down-hole shows ore deposit pressure numerical value, and pressure threshold value is set, if then report to the police above threshold values; Press signal to pass to downhole data in the ore deposit and send the duplexing subsystem of reception;
(2) downhole data sends and receives duplexing subsystem: this receipts subsystem comprises the wireless data sending/receiving module at least, connection antenna correspondingly; Underground power supply used power module; Interface unit with the communication of downhole data acquisition process subsystem; The data that the duplexing subsystem of downhole data transmission reception passes over downhole data acquisition process subsystem send to aboveground, simultaneously, the specified control terminal are passed in aboveground control instruction reception; It is characterized in that described downhole data sends the sending/receiving module that receiving subsystem adopts; For opposing multipath fading effect, adopt OFDM modem and communications protocol thereof;
(3) aboveground data send and receive duplexing subsystem: this subsystem comprises wireless data receiver module and transmitter module at least, connection antenna correspondingly; Aboveground power supply module; With aboveground data process subsystem communications connectors spare; This subsystem receives downhole data and sends the data-signal that receives duplexing subsystem, the data that receive is passed to aboveground data subsystem process; Simultaneously, this subsystem is transferred to the down-hole with the control instruction emission that aboveground ore deposit pressure pipe reason subsystem sends, it is characterized in that the data transmitting and receiving module that described aboveground data emission receiving subsystem adopts, for opposing multipath fading effect, adopt OFDM modem and communications protocol thereof;
(4) aboveground data process subsystem: aboveground data process subsystem is by aboveground data processor; Display module; PC communication interface and agreement; Compositions such as power supply module; This subsystem carries out after-treatment with underground signal, aboveground demonstration; With the PC communication and upload the data to ore deposit pressure pipe reason subsystem;
(5) aboveground ore deposit pressure pipe reason subsystem: aboveground ore deposit pressure pipe reason subsystem is made up of the management system software that moves on the PC, and this management system can be by computer and aboveground data process subsystem realization both-way communication; Design has distinctive data transfer mode and communications protocol; This subsystem presses data to carry out graphical treatment to the ore deposit, and performance graph shows during with the ore deposit compacting, and the backstage store historical data is checked historical data at any time; Layout setting alarm button is judged the maximum pressure duration according to the data analysis final result, and the duration starts secondary and reports to the police greater than setting value, sends alarm command to the down-hole, realizes that aboveground down-hole reports to the police simultaneously; Simultaneously, according to alarm condition, send control instruction; The grouping switching push button is realized work plane each several part ore deposit pressure overall monitor; It is characterized in that ore deposit pressure pipe reason subsystem function is outstanding, have the management system graphic interface, performance graph shows during the compacting of ore deposit, and the backstage store historical data is checked historical data at any time, layout setting alarm button, grouping switching push button.
2. monitoring system as claimed in claim 1 is characterized in that:
(1) downhole data acquisition process subsystem comprises a kind of with in the lower sensor at least: be installed on the strain gauge on the face roof, be installed on the pressure sensor on the hydraulic support, be installed on the pressure sensor on the wall;
(2) comprise with the valve of hydraulic support with the sensor mounting means of each monitoring point contact and being connected; Top board and wall are carried out embedded installation.
3. monitoring system as claimed in claim 1 is characterized in that:
(1) the signal filtering amplifying circuit module that comprises of downhole data acquisition process subsystem;
(2) the first warning function in down-hole that comprises of downhole data acquisition process subsystem; Specifically comprise: processor sets in advance the ore deposit and presses the limit threshold values, and ore deposit pressure value is if continue greater than this threshold values, and processor sends alarm command and starts alarm, realizes reporting to the police for the first time;
(3) downhole data is gathered sub-treatment system and is had the down-hole and show ore deposit pressure value function.
4. monitoring system as claimed in claim 1 is characterized in that:
Data send the radio receiving transmitting module that receives in the duplexing subsystem, and this radio receiving transmitting module is the OFDM modem; The OFDM modem data sends the received communication agreement.
5. monitoring system as claimed in claim 1 is characterized in that:
System carries out analyzing and processing twice with data, and the downhole data acquisition subsystem carries out secondary data processing just, comprises according to judging the useful pressure signal, handles interfering signal, analyzes pressure law and pressure size; Aboveground data handling system is carried out the secondary data processing, namely carries out spectrum analysis, the periodic weighting analysis, and graphical data is handled.
6. monitoring system as claimed in claim 1 is characterized in that:
(1) transfer of data and communication protocol between aboveground data process subsystem and ore deposit pressure pipe reason subsystem;
(2) management system software and the graphic interface that moves on the PC that ore deposit pressure pipe reason subsystem comprises;
(3) ore deposit of respectively organizing that systems soft ware comprises presses attitude curve Presentation Function, the inquiry of historical data function;
(4) the maximum pressure duration is judged according to the data analysis final result by ore deposit pressure pipe reason system, and the duration starts secondary and reports to the police greater than setting value, sends alarm command to the down-hole, notifies aboveground and the downhole operations personnel take emergent protection.
CN201310163656.0A 2013-05-07 2013-05-07 A kind of down-hole combined mining working ore deposit pressure real-time monitoring system Expired - Fee Related CN103244184B (en)

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CN103557031B (en) * 2013-11-22 2015-11-04 中煤科工集团重庆研究院有限公司 Real-time automatic monitor for mine acoustic emission
CN103557031A (en) * 2013-11-22 2014-02-05 中煤科工集团重庆研究院有限公司 Real-time automatic monitor for mine acoustic emission
CN103670457A (en) * 2013-12-05 2014-03-26 四川航天电液控制有限公司 Real-time monitoring system for hydraulic support on coal mine fully mechanized working face
CN103670457B (en) * 2013-12-05 2015-12-09 四川航天电液控制有限公司 Coal mine fully-mechanized mining working hydraulic support real-time monitoring system
CN103775118A (en) * 2013-12-27 2014-05-07 中国矿业大学 Reproduction system and method for hydraulic support working gestures based on holographic laser projection
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CN104314556A (en) * 2014-10-22 2015-01-28 徐州隆安光电科技有限公司 Collecting and analyzing system of mining digital pressure gauge
CN104299390A (en) * 2014-10-31 2015-01-21 中国矿业大学(北京) Wireless transmit-receive device for recording working conditions of coal mine excavation working face
CN104484987B (en) * 2014-11-14 2018-07-27 中国矿业大学 The real-time dynamic radio monitoring device of coal mine work area roof safety and method
CN104484987A (en) * 2014-11-14 2015-04-01 中国矿业大学 Coal mine working face roof safe real-time dynamic wireless monitoring device and method
CN106997334A (en) * 2017-04-11 2017-08-01 辽宁工程技术大学 One kind is based on time-weighted mine pressure data handling system and method
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