CN103244184B - A kind of down-hole combined mining working ore deposit pressure real-time monitoring system - Google Patents
A kind of down-hole combined mining working ore deposit pressure real-time monitoring system Download PDFInfo
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Abstract
The present invention relates to the real-time monitoring system of a set of monitoring down-hole combined mining working pressure.Monitoring system is by downhole data acquisition process subsystem, downhole data transmission and reception duplex subsystem, aboveground data transmission and reception duplex subsystem, aboveground data process subsystem, the large subsystem composition of aboveground ore deposit pressure ADMINISTRATION SUBSYSTEM five, system adopts low-power scm as aboveground and data processing chip that is down-hole, underground part realizes the collection of ore deposit pressure on-site signal, data process for the first time, display, report to the police and Wireless Data Transmission, controlling functions, aboveground part realizes Wireless Data Transmission, data after-treatment, store, display and with the function such as PC communication.This cover system automaticity of the present invention's design is higher, and data transmission is reliable, and ore pressure monitor is accurate, can effectively instruct fully-mechanized mining working to keep the safety in production.Characteristic of the present invention is obvious, compares traditional monitoring equipment and other similar monitoring system automaticity is higher, is particularly suitable for promoting in correlation engineering field.
Description
Technical field
The present invention relates to a kind of monitoring technique, particularly the down-hole combined mining working in all kinds of mine field and strata behavior analysis of roadway Real-time Monitor Technique.
Background technology
In China's coal-mine underground mining field, along with improving constantly of production capacity, mining rate increases, to down-hole, more depths exploitation is mobile makes the safety of top board and support bear to put more effort, mine aspect potential safety hazard increases, in existing mine, safety production situation allows of no optimist, and mine accident has generation more.In all kinds of mine accident, the accident that mine pressure causes ranks among the best, be mainly reflected in wall stability, top plate supporting field of load, the aspects such as hydraulic support stability, its main cause is inner ore deposit, tunnel pressure, and the parameters such as lane wall pressure and periodic weighting do not gather timely and accurately, process and report to the police.The Main Means that occurs of preventing accident is pressurized situation by monitoring underground top plate and hydraulic support thus reaches and compress into row monitor and forecast to fully-mechanized mining working ore deposit.
At present, means for fully-mechanized mining working bracket support quality-monitoring are relatively backward, or be mainly included in setting pressure sensor pressure meter on down-hole combined mining working hydraulic support, or in means such as back and wall bracket mount stress sensor circular chart recorders.Though by instrumentations such as setting pressure table, circular chart recorders on support, certain effect is served in the safety in production of fully-mechanized mining working, but its monitoring instrument independently distributes, down-hole difficult wiring is miscellaneous, data acquisition poor efficiency, automaticity is low, and the reason such as data acquisition and processing (DAP) is loaded down with trivial details, information feedback period is long, fails fundamentally to reach the requirement of timely Instructing manufacture.
Meanwhile, due to the progress of technology, change traditional ore pressure monitor means and monitoring method.Monitoring means and the method for ore deposit pressure are constantly upgraded and improved.
The ore pressure monitor means that the patent of invention of being applied for by Saden idea Science and Technology Ltd. of Tai'an Cisco and utility model coal mine downhole mine pressure comprehensive monitoring data Internet-of-Things transmission type detection system (application number: 20110250695.5/CN201120320017.7) adopt are comparatively advanced, changing wired data transfer mode is in the past Wireless Data Transmission, it uses monitored data Internet of things type transmission method, this system by connecting wireless transmission on each sensor treatment circuit, automatic network-building module, the monitoring sub-station of some identical functions is set up in the effective scope of wireless telecommunications, by substation, record data are sent to 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 completes comprehensive monitoring to Underground pressure.This patent system has efficiently, and reliably, the features such as network capacity is large, it is advantageous that the data acquisition capacity of Internet of things type transmission method is large.Still there is many deficiencies in this system, deficiency is mainly manifested in following several respects, one, and system underground monitoring point is too much, and data acquisition amount is large, easily causes data to transmit and block up.Its two, two-stage monitoring sub-station is set up in system down-hole, and system construction cost is higher, and data transmission delay is larger.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 control room, wiring is still comparatively difficult, particularly the Minepit environment of down-hole complexity can cause damage to communication cable and optical fiber, thus influential system stability.
And the utility model of being applied for by HeiLongJiang Science academy is based on the multi-parameter mine pressure monitoring system (application number: CN201220026066.4) of ZigBee wireless telecommunications, the monitoring means of employing and data transfer mode are also comparatively novel.This system adopts vibrating string type sensor directly to measure roof pressure, mainly utilizes roof pressure, the coupled relation between sound emission and electromagnetic radiation, and what data transmission adopted is ZigBee Wireless Data Transmission.The advantage of this cover system design is, adopts vibrating string type sensor to measure roof pressure, and because this sensor is frame for movement formula, not by circuit, the impact of the band such as voltage electrical quantity, the stability of measurement is better.Also discard tradition wired data transfer form simultaneously on data-transmission mode, adopts comparatively advanced ZigBee wireless transmission, thus avoid the problem of mining face under mine difficult wiring.There is larger weak point in this system, mainly contain several aspect, one, although what the vibrating string type sensor that this system adopts can be stable carries out pressure measxurement, not powered parameter perturbation, if but select to deal with improperly on material, due to residual stress, the factors such as creep can have a strong impact on the stability of sensor.Its two, because vibrating string type sensor is frame for movement formula, take string wire as conversion element, there is larger hysteresis characteristic, can only be used in static and be not more than the quasi dynamic test of 10HZ.Cannot accurately measure larger 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 meet the data transmission distance of down-hole.The transmission range technical specification of comparatively ripe ZigBee module is in spaciousness, without hindrance every, the transmission range in noiseless situation, distance is not at tens meters to several kilometers etc., signal for 2.4GHZ frequency band is close to and microwave property, and be afraid of to stop, signal comparatively fast cannot be propagated in down-hole.Transmitting power affects transmitting range, if strengthen transmitting range, system power dissipation must be caused to increase, and is unfavorable for that system long-term stability is run.Therefore the ZigBee wireless data transfer module used all can not complete Wireless Data Transmission preferably from theory to reality, and that must use signal transfer substation in communication context.Therefore this system still haves much room for improvement and improves, and Underground pressure monitoring field still needs to invest more further.
Fully mechanized mining supporter pressure computer monitoring means that on-line monitoring system adopts designed by Cao Tongsheng is also carry out production wells downforce data by monitoring fully mechanized mining supporter pressure, what wireless communication mode adopted is two line balance formula isolation transmission methods of underground RDS transmission technology, the technological merit of RDS transmission is applicable to multi-user system, distributed and Distributed Monitoring and Control System, low to line requirements, two pairs of telephone wires or twisted-pair feeder can be utilized, or common quad transmission, in the occasion that one-way data transmits, two-wire system can be used to transmit.Adopt balanced transmission techniques, there is very high anti-common mode disturbances performance, but its on-line monitoring system shortcoming is more, as adopted RDS transmission technology, adding the complexity of circuit, increasing system burden, secondly, this system adopts communication extension cycle detection pressure extension set to be also stored in RAM, and all the complete transmission method being transmitted into ground together by communication extension again of monitoring greatly reduces the real-time of system transfers, and obtaining pressure change to each monitoring point can not effective monitoring.
Fully mechanized mining supporter safety monitoring system that is loyal by Li Guang and Wu Shitao design is also by poppet pressure sensor and live post displacement, velocity sensor collection signal, the place of its novelty is its data communication method flexibly, be that detection machine utilizes CAN Bus bus communication on the one hand, upload the data to computer; By infrared, RS232 mode, data acquisition, to portable collector, is then taken to ground and uploaded to computer by modes such as RS232 on the other hand.Although the data transfer mode of this system is flexible, its existing defects is more.One, because the particularity of its data communication method, can not reach the real-time required by system, be unfavorable for the security monitoring of support.Its two, multiple communication modes increases the cost of system, and particularly not only adopt wired but also adopt wireless mode, wire communication down-hole difficult wiring, signal is subject to electromagnetic interference.Its three, add the workload of computer processing data, when the Data duplication amount that the data that portable collector gathers and wire communication mode gather is larger, computer does 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 compared to traditional means, but still effectively can not meet the safety in production requirement of mine working face.Therefore, how effectively to monitor the Parameters variation such as roof Stress and wall pressure, how to gather ore removal pressure data accurately, how effectively the decay of down-hole multi-path channel signal realizes efficient data transfer, how to carry out signal analysis and processing efficiently, how real-time compress into row monitoring, display to ore deposit and report to the police thus instruct down-hole combined mining working to keep the safety in production core of the present invention just, therefore patent of the present invention is worth promoting in correlation engineering field and using for reference.
Summary of the invention
The present invention seeks to solve the problems referred to above existed in current mine pressure monitoring system, make up traditional Underground pressure monitoring means and the deficiency of method, a kind of ore deposit pressure monitoring scheme of accurate real-time high-efficiency is provided, design a set of automaticity high, ore deposit pressure data acquisition is more accurate, data transmit more high efficient and reliable, and function more improves complete monitoring system.
The technical scheme that this Underground pressure real-time monitoring system adopts is:
(1) first at ore deposit down-hole combined mining working, there is collection roof Stress, the sensor of hydraulic support pressure and wall pressure signal, the pressure signal of work plane can be become the signal of telecommunication.Need the safety power supply that working sensor is provided simultaneously;
(2) by the sensor with the circuit module that the signal of telecommunication carries out processing can be connected, invalid interfering signal can filter by this circuit module, and the faint useful signal of telecommunication is amplified to the operable scope of subsequent module;
(3) need the A/D module that the signal of telecommunication after to above-mentioned process is sampled, this module palpus figure place is higher, and precision is better, and ability in sampling is strong, can multi-channel sampling.By this module, the signal of telecommunication of simulation being become the digital signal of telecommunication is that subsequent module uses.This module needs specific safe voltage to power;
(4) by downhole data processing module, data processing is carried out to A/D modules acquiring data in down-hole, specifically comprise one piece of low-power scm, display, alarm.It is useful pressure signals that single-chip microcomputer carries out to data those data that namely initial analysis process judge to gather, and disposes useless interfering signal, analyzes pressure law and pressure size, shows pressure value in real time by display.Pressure alarm limit value is set, by comparative pressure size, if reach the higher limit of setting, starts alarm, pre-alarm will be carried out at mining face under mine.Signal after preliminary treatment can spread out of by this processing module.This processor needs specific Power supply.
(5) need a kind ofly data to be transferred to aboveground module by the form of wireless signal.This module wireless communication distance is larger compared to conventional wireless data transfer module distance, can reach several kilometers to tens kilometers, and can effectively avoid signal attenuation and external electromagnetic interference.This module needs safety power supply to power.
(6) aboveground by wireless receiving module by Signal reception and will receive signal transmission to subsequent module.This part needs safety power supply to power.
(7) aboveground data processing module needs to analyze the downhole data signal that will process above-mentioned module and receive further, and processor module comprises a low-power scm, display.Single-chip microcomputer does after-treatment to data and namely carries out spectrum analysis, periodic weighting analysis, graphical data process, and the force value after process shown by display, this module needs PC communication interface simultaneously.This part needs specific Power supply.
(8) need independent operating a set of ore deposit pressure real-time monitoring and managing system on PC, on PC received well processing section data and shown by this monitoring system, store historical data.This system has graphic interface, and in real time buckle line chart in the ore deposit of display down-hole combined mining working, monitors for many groups simultaneously, can check historical data in interface.Reported to the police to mining face under mine by controlling alarm button, notice mining face under mine carries out the safe transfer of safety guard and personnel in the pit simultaneously.
For realizing such scheme, the invention provides corresponding monitoring system.
Realize an ore deposit pressure real-time monitoring system for technique scheme, this system is managed subsystem formed by downhole data acquisition process subsystem, downhole data transmission and reception duplex subsystem, aboveground data transmission and reception duplex subsystem, aboveground data process subsystem, aboveground ore deposit pressure pipe:
(1) downhole data acquisition process subsystem; Downhole data acquisition process subsystem at least comprises with the one in lower sensor: be installed on the pressure sensor on face roof, the pressure sensor be installed on hydraulic support, is installed on the pressure sensor in wall; The sensor mounting means contacted with each monitoring point comprises and being connected with the valve of hydraulic support; Top board and wall carry out installation by adhering; This subsystem also comprises signal filtering amplification circuit module; A/D sampling module; Downhole data processor module; Alarm module down-hole realizes first warning function; Display apparatus module and underground power supply used power module.Downhole data acquisition process subsystem collection top board, hydraulic support, wall pressure signal carry out data initial analysis process, and display ore deposit, down-hole pressure numerical value, arranges pressure threshold value, if exceed threshold values, report to the police; Pressed in ore deposit signal transmission to downhole data transmission and reception duplex subsystem.
(2) downhole data transmission and reception duplex subsystem; Downhole data transmission and reception duplex subsystem at least comprises wireless data sending/receiving module; Corresponding connection antenna; Underground power supply used power module; With the interface unit of downhole data acquisition subsystem communication; The data that downhole data acquisition process subsystem passes over are sent to aboveground by downhole data transmission and reception duplex subsystem, meanwhile, aboveground control instruction is received and passes to specified control terminal; It is characterized in that the sending/receiving module that described downhole data transmission and reception duplex subsystem adopts.For opposing multipath fading effect, OFDM modulation demodulator and communications protocol thereof can be adopted.
(3) aboveground data transmission and reception duplex subsystem; Aboveground data transmission and reception duplex subsystem at least comprises wireless data receipt modules and transmitter module; Corresponding connection antenna; Aboveground power supply module; With aboveground data process subsystem communications connectors part; This subsystem receives the data-signal of downhole data transmission and reception duplex subsystem, the data received is passed to aboveground data process subsystem and processes; Simultaneously, the control instruction transmitting that aboveground ore deposit pressure ADMINISTRATION SUBSYSTEM sends is transferred to down-hole by this subsystem, it is characterized in that the data transmitting and receiving module that described aboveground data transmission and reception duplex subsystem adopts, for opposing multipath fading effect, OFDM modulation demodulator and communications protocol thereof can be adopted.
(4) aboveground data process subsystem; Aboveground data process subsystem is by aboveground data processor; Display module; PC communication interface and agreement; The compositions such as power supply module, underground signal is carried out after-treatment by this subsystem, aboveground display; Upload the data to ore deposit press ADMINISTRATION SUBSYSTEM with PC communication.
(5) aboveground ore deposit pressure ADMINISTRATION SUBSYSTEM; Aboveground ore deposit pressure ADMINISTRATION SUBSYSTEM is made up of the management system software that PC runs, and this management system realizes both-way communication by computer and aboveground data process subsystem, is designed with distinctive data transfer mode and communications protocol; This subsystem carries out graphical treatment to ore deposit pressure data, and by dynamic graph display during the compacting of ore deposit, backstage store historical data, checks historical data at any time; Interface arranges alarm button, and judge the maximum pressure duration according to data analysis final result, the duration is greater than setting value, starts secondary and reports to the police, send alarm command, realize the same alarm of aboveground well to down-hole; Meanwhile, according to alarm condition, send control instruction; Grouping switching push button realizes work plane each several part ore deposit pressure overall monitor, it is characterized in that ore deposit pressure pipe reason subsystem function is given prominence to, there is management system graphic interface, the dynamic graph display during compacting of ore deposit, backstage store historical data, check historical data at any time, interface arranges 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 pre-sets ore deposit and presses limit threshold values, if ore deposit pressure value continues to be greater than this threshold values, processor sends alarm command and starts alarm, realizes reporting to the police for the first time.Data have been carried out twice analyzing and processing by system, and downhole data acquisition subsystem carries out first data processing, comprise according to judging useful pressure signal, and process interfering signal, analyzes pressure law and pressure size; Aboveground data handling system carries out secondary data process, namely carries out spectrum analysis, periodic weighting analysis, graphical data process.
Advantage of the present invention is:
One, system acquisition top board, hydraulic support, the pressure of the work plane key positions such as wall, in time initial analysis process is carried out to the signal collected by downhole data acquisition subsystem, the data processing method that the utility model that the patent of invention of applying for compared to Saden idea Science and Technology Ltd. of Tai'an Cisco and HeiLongJiang Science academy are applied for adopts, its mode the data collected is sent to ground process, the benefit of native system is to process out useful ore deposit pressure data in time in down-hole, avoid useless data transmission, effectively raise the transfer rate of data, that avoids data to transmit blocks up, enhance the real-time of system,
They are two years old, with the monitoring system designed by the people such as Cao Tongsheng, Li Guangzhong and Wu Shitao comparatively speaking, the downhole data acquisition subsystem of this system has Presentation Function and warning function, real-time display ore deposit pressure numerical value and take alarm signal, not only can be conducive to underground work personnel and understood ore deposit pressure situation at any time but also can prior notice personnel to properly protect preparation; This feature is that said system does not have;
They are three years old, compared with the ZigBee wireless telecommunications used with the utility model that HeiLongJiang Science academy is applied for, this system data transceiver subsystem adopts OFDM modulation demodulator, its communication distance is large, communications protocol is good, volume of transmitted data is large, signal attenuation is less, the means of communication that the patent of invention of applying for Saden idea Science and Technology Ltd. of Tai'an Cisco uses compare, this system is without the need to arranging one-level or secondary monitoring sub-station, directly carry out aboveground and downhole data communication, not only save the constructions cost of system but also avoid data congestion, improve the real-time of data transmission,
Its four, aboveground data process subsystem is carried out data after-treatment and is shown ore deposit pressure numerical value, is conducive to aboveground personnel and grasps Face Pressure situation rationally instruct safety in production.Ore deposit pressure ADMINISTRATION SUBSYSTEM is in control room, effective monitoring mining face under mine can respectively organize ore deposit, monitoring point pressure situation, buckles line, more visual pattern in the direct dynamic graph display ore deposit of graphical interfaces.Store the historical data in the regular period, can be called by this management system and check, management system has alarm button, can and alarm notify that mining face under mine and aboveground relevant unit withdraw and protect preparation; This system carries out Intellectualized monitoring to on-the-spot ore deposit pressure parameter, and have data acquisition process promptly and accurately, data send transmission high efficient and reliable, and system power dissipation is low, shows in real time and provide ore deposit to press the features such as warning to support health status and working face state.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of patent system of the present invention, in figure: 1. mineral products ground, 2. fully-mechanized mining working, 3. top board, 4. support;
Fig. 2 is fully-mechanized mining working structural representation, in figure; 3. top board, 5. working face conveyor, 6. load-bearing girder steel, 7. coal seam, 8. coal-winning machine, 9. roller, 10. rock stratum;
Fig. 3 is underground part structural representation, 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 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 processors, the ore deposit that 18.PC machine runs pressure management system, 19. aboveground wireless data receipt modules, 20. aboveground LCD MODULEs, 22. aboveground power units.
Detailed description of the invention
Down-hole combined mining working ore deposit of the present invention pressure real-time monitoring system summary of the invention and technical scheme describe, no longer discuss at this.
Below in conjunction with accompanying drawing, present system is described further, thus better understands present system.
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 following of subterranean strata 10, and particularly for the mine that coal seam is darker, exploitation difficulty is large, and periodic weighting is not easy monitoring, is often prone to accidents.Top board 3 is for withstanding top rock and earth, hydraulic support 4 is for roof supporting 3 and the gat wall withstanding fully-mechanized mining working 2, coal-winning machine 8 is at advance of the face working seam 7, ickings transfers out by working face conveyor 5, load-bearing girder steel 6 is for support works face conveyer 5 and coal-winning machine 8, and roller 9 drives working face conveyor 5.
As shown in Figure 2, Figure 3, Figure 4, system is divided into down-hole and aboveground two parts, comprises following system: downhole data acquisition process subsystem, downhole data transmission and reception duplex subsystem, aboveground data transmission and reception duplex subsystem, aboveground data process subsystem, aboveground ore deposit pressure ADMINISTRATION SUBSYSTEM.
Underground part contains downhole data acquisition process subsystem and downhole data transmission and reception duplex subsystem two systems.Two subsystems are all installed in fully-mechanized mining working 2 times, and two systems are all fixed in support floor place, can advance along with the degree of depth of fully-mechanized mining working and move.The sensor assembly 11 of data acquisition subsystem gathers the pressurized data of tunnel wall pressure, underground top plate 3 and hydraulic support 4, and it is embedded that the mounting means of sensor and contact surface comprises wall, and top board is by pressure type, and the valve interconnection system of hydraulic support; After down-hole is to ore deposit pressure data acquisition, pressure signal is converted into the signal of telecommunication of simulation, then does filtering by signal condition amplifying circuit 12 pairs of signals and send out large process, enables the voltage range reaching subsequent module use.In order to reduce the development cost of system, under simultaneously reaching again the prerequisite of index request of system, outside A/D can be selected and select the processor of inner integrated A/D.Adopt by A/D and be integrated on one piece of single-chip microcomputer with data processing, system selects low-power scm 15 for down hole processor, as selected MSP430 single-chip microcomputer.Single-chip microcomputer, by A/D pin sampled signal, carries out initial analysis, disposes useless interfering signal, analyzes pressure law and pressure size, shows pressure value in real time by display 14; Pressure alarm limit value is set, if reach the higher limit of setting by comparative pressure size, starts alarm 13; Useful signal after process is passed to downhole data and sends subsystem.OFDM modulation demodulator 16 and the single-chip microcomputer 15 of downhole data transmission and reception duplex subsystem carry out data transmission and communication; Data are obtained form to aboveground transmission with packet according to specific communications protocol by OFDM modulation demodulator 16.Underground part two Iarge-scale system provides the safety power supply of needs by power unit 21.
Aboveground part comprises aboveground data transmission and reception duplex subsystem, aboveground data process subsystem, aboveground ore deposit pressure ADMINISTRATION SUBSYSTEM three system compositions.Packet is received by the OFDM modulation demodulator 19 of aboveground data transmission and reception duplex subsystem, OFDM modulation demodulator 19 carries out data transmission and communication with the processor module 17 of aboveground data process subsystem, aboveground data processing module 17 can select the low-power scm identical with downhole data processing module 15, single-chip microcomputer 17 will receive data do secondary analysis process, carry out spectrum analysis, periodic weighting is analyzed, graphical data process, is shown the force value after process by display 20.Single-chip microcomputer 17 and ore deposit press ADMINISTRATION SUBSYSTEM 18 to carry out communication simultaneously, the data after after-treatment are sent to the ore deposit enterprising row data of pressure ADMINISTRATION SUBSYSTEM and store, graphical dynamic graph display.Staff can understand down-hole each several part pressure condition in real time by this management system, instructs fully-mechanized mining working to keep the safety in production, provides the inquiry of historical data simultaneously, make alert process.Aboveground control instruction of making according to down-hole situation, can pass through ofdm communication transmission system, be transferred to down-hole control terminal, take corresponding stringent effort immediately, generation of preventing accident.The each system of aboveground part provides required safety power supply by power unit 22.
More than for patent of the present invention preferred embodiment and design graphic; above-mentioned preferred embodiment and designing graphicly only illustrates; interest field not for limiting patent of the present invention; all with the technological means of equalization or the interest field that contains for the application's the scope of the claims and implementer, all do not depart from the protection domain of patent of the present invention.
Claims (5)
1. a down-hole combined mining working ore deposit pressure real-time monitoring system, is characterized in that:
This down-hole combined mining working ore deposit pressure real-time monitoring system is managed subsystem formed by downhole data acquisition process subsystem, downhole data transmission and reception duplex subsystem, aboveground data transmission and reception duplex subsystem, aboveground data process subsystem, aboveground ore deposit pressure pipe;
(1) downhole data acquisition process subsystem: downhole data acquisition process subsystem at least comprises following sensor mounting location and one in the sensor mounting means that contacts with each monitoring point: be installed on the strain gauge on face roof, be installed on the pressure sensor on hydraulic support, be installed on the pressure sensor in wall; The sensor mounting means contacted with each monitoring point comprises and being connected with the valve of hydraulic support; Top board and wall carry out installation by adhering; This downhole data acquisition process subsystem also comprises signal filtering amplification circuit module; A/D sampling module; Downhole data processor module; Alarm module down-hole realizes first warning function; The special power supply module of display apparatus module and down-hole, downhole data acquisition process subsystem collection top board, hydraulic support, wall pressure signal carry out data initial analysis process, display ore deposit, down-hole pressure numerical value, arranges pressure threshold value, if exceed threshold values, reports to the police; Pressed in ore deposit signal transmission to downhole data transmission and reception duplex subsystem;
(2) downhole data transmission and reception duplex subsystem: downhole data transmission and reception duplex subsystem at least comprises wireless data sending/receiving module, corresponding connection antenna; Underground power supply used power module; With the interface unit of downhole data acquisition process subsystem communication; The data that downhole data acquisition process subsystem passes over are sent to aboveground by downhole data transmission and reception duplex subsystem, meanwhile, aboveground control instruction is received and passes to specified control terminal; It is characterized in that the sending/receiving module that described downhole data transmission and reception duplex subsystem adopts, be opposing multipath fading effect, OFDM modulation demodulator and communications protocol thereof can be adopted;
(3) aboveground data transmission and reception duplex subsystem: aboveground data transmission and reception duplex subsystem at least comprises wireless data receipt modules and transmitter module, corresponding connection antenna; Aboveground power supply module; With aboveground data process subsystem communications connectors part; Aboveground data transmission and reception duplex subsystem receives the data-signal of downhole data transmission and reception duplex subsystem, the data received is passed to aboveground data process subsystem and processes; Simultaneously, the control instruction that aboveground ore deposit pressure ADMINISTRATION SUBSYSTEM sends sends and is transferred to down-hole by aboveground data transmission and reception duplex subsystem, it is characterized in that the data transmitting and receiving module that described aboveground data transmission and reception duplex subsystem adopts, for opposing multipath fading effect, OFDM modulation demodulator and communications protocol thereof can be adopted;
(4) aboveground data process subsystem: aboveground data process subsystem is by aboveground data processor; Display module; PC communication interface and agreement; Power supply module forms; Underground signal is carried out after-treatment by aboveground data process subsystem, aboveground display; Upload the data to aboveground ore deposit press ADMINISTRATION SUBSYSTEM with PC communication;
(5) aboveground ore deposit pressure ADMINISTRATION SUBSYSTEM: aboveground ore deposit pressure ADMINISTRATION SUBSYSTEM is made up of the management system software that PC runs, aboveground ore deposit pressure ADMINISTRATION SUBSYSTEM realizes both-way communication by computer and aboveground data process subsystem; Be designed with distinctive data transfer mode and communications protocol; Aboveground ore deposit pressure ADMINISTRATION SUBSYSTEM carries out graphical treatment to ore deposit pressure data, and by dynamic graph display during the compacting of ore deposit, backstage store historical data, checks historical data at any time; Interface arranges alarm button, and judge the maximum pressure duration according to data analysis final result, the duration is greater than setting value, starts secondary and reports to the police, send alarm command, realize the same alarm of underground to down-hole; Meanwhile, according to alarm condition, send control instruction; Grouping switching push button realizes work plane each several part ore deposit pressure overall monitor; It is characterized in that aboveground ore deposit pressure pipe reason subsystem function, have management system graphic interface, the dynamic graph display during compacting of ore deposit, backstage store historical data, checks historical data at any time, and interface arranges alarm button, grouping switching push button.
2. down-hole combined mining working ore deposit as claimed in claim 1 pressure real-time monitoring system, has:
(1) the signal filtering amplification 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 comprises: processor pre-sets ore deposit and presses limit threshold values, if ore deposit pressure value continues to be greater than this threshold values, processor sends alarm command and starts alarm, realizes reporting to the police for the first time;
(3) downhole data acquisition process subsystem has display ore deposit, down-hole pressure value function.
3. down-hole combined mining working ore deposit as claimed in claim 1 pressure real-time monitoring system, has:
Radio receiving transmitting module in downhole data transmission and reception duplex subsystem and aboveground data transmission and reception duplex subsystem, this radio receiving transmitting module is OFDM modulation demodulator; OFDM modulation demodulator data transmission and reception communication protocol.
4. down-hole combined mining working ore deposit as claimed in claim 1 pressure real-time monitoring system, has:
Data are carried out twice analyzing and processing by down-hole combined mining working ore deposit pressure real-time monitoring system, downhole data acquisition process subsystem carries out first data processing, comprise according to judging useful pressure signal, process interfering signal, analyze pressure law and pressure size, aboveground data process subsystem carries out secondary data process, namely carries out spectrum analysis, periodic weighting is analyzed, graphical data process.
5. down-hole combined mining working ore deposit as claimed in claim 1 pressure real-time monitoring system, has:
(1) aboveground data process subsystem and aboveground ore deposit press data between ADMINISTRATION SUBSYSTEM to transmit and communication protocol;
(2) management system software that the PC that aboveground ore deposit pressure ADMINISTRATION SUBSYSTEM comprises runs and graphic interface;
(3) each group of ore deposit pressure performance graph Presentation Function that management system software PC run comprises, the inquiry of historical data function;
(4) aboveground ore deposit pressure ADMINISTRATION SUBSYSTEM judges the maximum pressure duration according to data analysis final result, and the duration is greater than setting value, starts secondary and reports to the police, send alarm command to down-hole, notifies that aboveground and downhole operations personnel take emergent protection.
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| CN103498699A (en) * | 2013-09-04 | 2014-01-08 | 中国矿业大学 | Predicating system of mine operation face roof weight |
| CN103557031B (en) * | 2013-11-22 | 2015-11-04 | 中煤科工集团重庆研究院有限公司 | Mine acoustic emission real-time automatic monitor |
| 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 |
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| RU2691793C2 (en) * | 2014-08-28 | 2019-06-18 | ДЖОЙ ГЛОБАЛ АНДЕРГРАУНД МАЙНИНГ ЭлЭлСи | Monitoring of roof fastening in solid development system |
| 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 |
| CN106593419B (en) * | 2016-12-13 | 2023-09-26 | 中国石油天然气股份有限公司 | Wireless two-way communication system based on electromagnetic waves and used for medium-deep well |
| 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 |
| CN110759199A (en) * | 2019-10-23 | 2020-02-07 | 北京精英系统科技有限公司 | Device and method for detecting electric bicycle trying to enter elevator |
| CN113685179A (en) * | 2020-05-19 | 2021-11-23 | 郑州煤机智能工作面科技有限公司 | Automatic control system and control method for fully mechanized coal mining face of coal mine |
| CN113411546B (en) * | 2021-05-18 | 2022-11-01 | 河南工程学院 | AR-based coal mining machine visual monitoring method |
| CN116085053B (en) * | 2023-04-12 | 2023-08-01 | 平顶山天安煤业股份有限公司 | Working face ore pressure on-line monitoring system based on sensing technology |
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