CN214035788U - Mine pressure monitoring system based on fiber bragg grating sensor - Google Patents
Mine pressure monitoring system based on fiber bragg grating sensor Download PDFInfo
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- CN214035788U CN214035788U CN202023298387.3U CN202023298387U CN214035788U CN 214035788 U CN214035788 U CN 214035788U CN 202023298387 U CN202023298387 U CN 202023298387U CN 214035788 U CN214035788 U CN 214035788U
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Abstract
The utility model relates to a mine pressure monitoring system based on fiber grating sensor, belonging to the technical field of mine pressure monitoring systems; the technical problem to be solved is as follows: the improvement of the hardware structure of the mine pressure monitoring system based on the fiber bragg grating sensor is provided; the technical scheme for solving the technical problems is as follows: the fiber Fabry-Perot pressure sensor, the fiber embedded stress sensor, the fiber grating displacement sensor and the fiber anchor rod/cable stress sensor are connected with a fiber grating demodulator; the mine pressure monitoring system comprises an underground control center, a ground control center and a remote control center, wherein the underground control center comprises a control cabinet and a display screen, a central controller is arranged in the control cabinet, the central controller is respectively connected with a fiber grating demodulator, the display screen and a wireless data transmission radio station through wires, and the underground control center realizes bidirectional communication with the ground control center and the remote control center through the wireless data transmission radio station; the utility model discloses be applied to the ore deposit and press the monitoring.
Description
Technical Field
The utility model relates to a monitoring system is pressed in ore deposit based on fiber grating sensor belongs to ore deposit and presses monitoring system technical field.
Background
In the coal mining process, due to the fact that the production environment is severe and the production process is complex, the influences of factors such as complex ground stress and mining dynamic pressure cause various disasters such as working face caving, roof caving, frame pressing, roadway bottom bulging, deformation of two sides and coal rock outburst, and the safety and high-efficiency mining of coal and the safety of personnel and equipment are seriously influenced. Among various coal mine accidents, the roof accidents caused by mine pressure still stay in the front position. With the improvement of production capacity, the continuous increase of mining strength and the transition to deep mining, the roof safety problem is more and more prominent, and the roof safety problem is mainly reflected in the aspects of roadway stability, advanced bearing pressure influence range, stope face support stability and safety and the like which take anchor bolt support as a main form.
At present, mine pressure monitoring is mainly used for roof accident prevention and control in coal mines, but the existing online mine pressure monitoring system has the problems of poor system universality and stability, low safety, low comprehensive integration level and the like, and cannot meet the requirements of coal mine safety and high-efficiency production.
Therefore, it is necessary to provide a mine pressure monitoring system based on a fiber-optic fabry-perot pressure sensor, in which the fiber-optic grating sensor is not subject to electromagnetic interference, and the fiber-optic grating sensor is embedded to improve the stability of the system.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome not enough that exists among the prior art, the technical problem that will solve is: the improvement of the hardware structure of the mine pressure monitoring system based on the fiber bragg grating sensor is provided.
In order to solve the technical problem, the utility model discloses a technical scheme be: a mine pressure monitoring system based on a fiber bragg grating sensor comprises a fiber Fabry-Perot pressure sensor, a fiber embedded stress sensor, a fiber bragg grating displacement sensor and a fiber anchor rod/cable stress sensor, wherein the fiber Fabry-Perot pressure sensor is fixedly installed on a hydraulic support of a fully mechanized mining face;
the optical fiber Fabry-Perot pressure sensor, the optical fiber embedded stress sensor, the optical fiber grating displacement sensor and the optical fiber anchor rod/cable stress sensor are respectively connected with the optical cable junction box through single-mode optical cables, and the optical cable junction box is connected with the optical fiber grating demodulator through a transmission optical cable;
the mine pressure monitoring system comprises an underground control center, a ground control center and a remote control center, wherein the underground control center comprises a control cabinet and a display screen, a central controller is arranged in the control cabinet, the central controller is respectively connected with a fiber grating demodulator, the display screen and a GE MDS SD2 wireless data transmission radio station through leads, and a power supply end of the central controller is connected with a power supply box through a lead;
the central controller is also connected with an alarm module through a wire, and the alarm module is respectively arranged outside the control rooms of the underground control center, the ground control center and the remote control center to realize alarm linkage;
the underground control center realizes bidirectional remote communication with the ground control center and the remote control center through a GE MDS SD2 wireless data transmission radio station.
The central controller is also connected with the storage module through a lead.
The central controller also realizes bidirectional wireless communication between the underground control center and the mobile terminal through a GE MDS SD2 wireless data transfer radio.
The type of the optical fiber Fabry-Perot pressure sensor is GYL50GX (A);
the type of the optical fiber embedded type stress sensor is GYB1500GX (A);
the type of the fiber bragg grating displacement sensor is GWY100GX (A);
the type of the optical fiber anchor rod/cable stress sensor is GZL100GX (A);
the type adopted by the fiber grating demodulator is YGSJ-15;
the central controller is of a model number SIMATIC S7-200 SMART.
The utility model discloses beneficial effect for prior art possesses does: the utility model provides a mine pressure monitoring system carries out data acquisition to the pressure data of fully mechanized mining working face, the stress of tunnel rock mass, the displacement data that sinks of roof rock stratum through setting up light grating formula pressure sensor, drilling stress sensor, roof isolation layer sensor and stock/cable stress sensor, and fiber sensor buries the tunnel rock mass through concrete placement simultaneously, has avoided device and cable damage problem that wiring and installation sensor brought on the tunnel surface, and fiber sensor does not receive electromagnetic interference simultaneously, and the data accuracy of gathering is high; simultaneously the utility model discloses a set up in the pit control center, ground control center, remote control center and can realize the comprehensive monitoring to the tunnel mine pressure, improved monitoring efficiency, the alarm module that links can in time carry out the alarm with the abnormal information of mine pressure simultaneously.
Drawings
The present invention will be further explained with reference to the accompanying drawings:
fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic diagram of the circuit structure of the present invention;
in the figure: the system comprises an optical fiber Fabry-Perot pressure sensor 1, an optical fiber embedded stress sensor 2, an optical fiber grating displacement sensor 3, an optical fiber anchor rod/cable stress sensor 4, an optical cable junction box 5, an optical fiber grating demodulator 6, a downhole control center 7, a ground control center 8, a remote control center 9, a display screen 10, a central controller 11, a GE MDS SD2 wireless data transmission station 12, a power supply box 13, an alarm module 14, a storage module 15 and a mobile terminal 16.
Detailed Description
As shown in fig. 1 and fig. 2, the utility model relates to a mine pressure monitoring system based on fiber grating sensor, including fiber Fabry-Perot pressure sensor 1, fiber embedded stress sensor 2, fiber grating displacement sensor 3, fiber anchor rod/cable stress sensor 4, fiber Fabry-Perot pressure sensor 1 is fixed mounting on the hydraulic support of the fully mechanized mining face for gather the pressure data of the fully mechanized mining face hydraulic support;
the optical fiber embedded type stress sensor 2 is embedded in the fully mechanized coal mining face and the stoping roadway rock mass through concrete pouring and is used for acquiring coal rock mass stress data of the fully mechanized coal mining face and the roadway rock mass;
the fiber bragg grating displacement sensor 3 is fixedly arranged on a top plate of the roadway and is used for collecting sinking data of a top plate rock stratum;
the optical fiber anchor rod/cable stress sensor 4 is fixedly arranged on an anchor rod/cable supported by roadway surrounding rock and is used for acquiring stress data information of the anchor rod/cable;
the fiber Fabry-Perot pressure sensor 1, the fiber embedded stress sensor 2, the fiber grating displacement sensor 3 and the fiber anchor rod/cable stress sensor 4 are respectively connected with an optical cable junction box 5 through single-mode optical cables, and the optical cable junction box 5 is connected with a fiber grating demodulator 6 through a transmission optical cable;
the mine pressure monitoring system comprises an underground control center 7, a ground control center 8 and a remote control center 9, wherein the underground control center 7 comprises a control cabinet and a display screen 10, a central controller 11 is arranged in the control cabinet, the central controller 11 is respectively connected with a fiber grating demodulator 6, the display screen 10 and a GE MDS SD2 wireless data transmission radio station 12 through leads, and a power supply end of the central controller 11 is connected with a power supply box 13 through a lead;
the central controller 11 is also connected with an alarm module 14 through a lead, and the alarm module 14 is respectively arranged outside the control rooms of the underground control center 7, the ground control center 8 and the remote control center 9 to realize alarm linkage;
the underground control center 7 realizes bidirectional remote communication with the ground control center 8 and the remote control center 9 through a GE MDS SD2 wireless data transmission radio station 12.
The central controller 11 is also connected to the memory module 15 by means of wires.
The central controller 11 also realizes bidirectional wireless communication between the downhole control center 7 and the mobile terminal 16 through the GE MDS SD2 wireless data transfer station 12.
The type of the optical fiber Fabry-Perot pressure sensor 1 is GYL50GX (A);
the model of the optical fiber embedded type stress sensor 2 is GYB1500GX (A);
the type of the fiber bragg grating displacement sensor 3 is GWY100GX (A);
the type of the optical fiber anchor rod/cable stress sensor 4 is GZL100GX (A);
the type adopted by the fiber grating demodulator 6 is YGSJ-15;
the central controller 11 is of the type SIMATIC S7-200 SMART.
The utility model provides a monitoring system is pressed in ore deposit based on fiber grating sensor, according to actual colliery tunnel's use degree and colliery area size, actually lay the sensor, according to the current return air lane in certain ore deposit, set up and arrange the sensor monitoring station from tunnel mouth department, toward the interior every 50-100 meters set up a set of, be every 15-25 positions at tunnel circumference part and set up a set of monitoring station, the monitoring station includes the utility model discloses the fiber Fabry-Perot pressure sensor 1 that uses, optic fibre bury formula stress transducer 2, fiber grating displacement sensor 3, fiber anchor pole/cable stress transducer 4 arrange corresponding optical cable terminal box 5 simultaneously according to the quantity of on-the-spot transmission optical cable and be used for carrying out the centralized management of cable to the cable of each section sensor to numbering the monitoring station.
The optical fiber Fabry-Perot pressure sensor 1 is arranged on a hydraulic support of a fully mechanized mining face, and the actual stress condition of the fully mechanized mining face is known through the stress data acquisition of the hydraulic support; the optical fiber embedded type stress sensor 2 and the optical fiber anchor rod/cable stress sensor 4 are arranged in surrounding rocks of the roadway, so that the change of shallow and deep stresses of the surrounding rocks at different positions of the roadway in different time can be monitored; the fiber bragg grating displacement sensor 3 is arranged at different depths of the top plate rock stratum to realize real-time monitoring of the separation layer value in the anchoring area and the separation layer value outside the anchoring area; simultaneously the utility model discloses the sensor of using all sets up to the optical fiber sensor who buries the formula, thereby can avoid laying the condition emergence that sensor and cable caused sensor and cable to damage on the tunnel surface, to rock stratum stress monitoring value, through the optical fiber sensor who buries the formula its numerical value of measurement that can be more accurate change simultaneously.
The utility model discloses a set up the surveillance center respectively with ground in the pit, realize the comprehensive monitoring to tunnel mine pressure, control center 7 mainly realizes the collection to mine pressure data in the pit, analysis processes and storage, ground control center 8 realizes through GE MDS SD2 wireless data transfer radio station 12 with control center 7's data communication in the pit, thereby realize when nobody is on duty, whether the staff can be through the data of monitoring the mine pressure in real time on ground normal, when the abnormal conditions appears, central controller 11 can remind the staff through triggering alarm signal, alarm signal divide into different grades simultaneously, can the severity grade of the abnormal conditions of quick judgement, thereby make corresponding measure.
The utility model discloses still set up remote monitoring center 9 and mobile terminal 16 simultaneously, remote monitoring center 9 can realize the remote monitoring of mine pressure through GE MDS SD2 wireless data transfer radio station 12, will concentrate the mine pressure monitoring data of the different tunnel of each colliery and show and data storage, can monitor the mine pressure of a plurality of collieries simultaneously; the mobile terminal 16 is generally equipped with a working patrol inspector of a coal mine, the central controller 11 can send real-time monitoring data of mine pressure to the mobile terminal 16 at certain intervals, the patrol inspector can know the mine pressure detection condition in time, and when the mine pressure detection is abnormal, the central controller can send information such as a coal mine number, mine pressure data, a detection position, an abnormal data type and the like of the abnormal mine pressure to the mobile terminal 16 in a short message mode, so that the patrol inspector can know the abnormal condition in time and accurately, and remedial measures can be taken in time.
About the utility model discloses what the concrete structure need explain, the utility model discloses a each part module connection relation each other is definite, realizable, except that the special explanation in the embodiment, its specific connection relation can bring corresponding technological effect to based on do not rely on under the prerequisite of corresponding software program execution, solve the utility model provides a technical problem, the utility model provides a model, the connection mode of parts, module, specific components and parts that appear all belong to the prior art such as the published patent that technical staff can acquire before the application day, published journal paper, or common general knowledge, need not to describe in detail for the technical scheme that the present case provided is clear, complete, realizable, and can be according to this technical means or obtain corresponding entity product.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (4)
1. The utility model provides a mine pressure monitoring system based on fiber grating sensor, includes that optic fibre fabry-perot pressure sensor (1), optic fibre bury formula stress transducer (2), fiber grating displacement sensor (3), optic fibre stock/cable stress transducer (4), its characterized in that: the optical fiber Fabry-Perot pressure sensor (1) is fixedly installed on a hydraulic support of a fully mechanized mining face, the optical fiber embedded type stress sensor (2) is embedded in the fully mechanized mining face and a stoping roadway rock body through concrete pouring, the optical fiber grating displacement sensor (3) is fixedly installed on a top plate of a roadway, and the optical fiber anchor rod/cable stress sensor (4) is fixedly installed on an anchor rod/cable supported by roadway surrounding rocks;
the fiber Fabry-Perot pressure sensor (1), the fiber embedded stress sensor (2), the fiber grating displacement sensor (3) and the fiber anchor rod/cable stress sensor (4) are respectively connected with the optical cable junction box (5) through single-mode optical cables, and the optical cable junction box (5) is connected with the fiber grating demodulator (6) through a transmission optical cable;
the mine pressure monitoring system comprises an underground control center (7), a ground control center (8) and a remote control center (9), wherein the underground control center (7) comprises a control cabinet and a display screen (10), a central controller (11) is arranged in the control cabinet, the central controller (11) is respectively connected with a fiber bragg grating demodulator (6), the display screen (10) and a GE MDS SD2 wireless data transmission radio station (12) through leads, and a power supply end of the central controller (11) is connected with a power supply box (13) through a lead;
the central controller (11) is also connected with an alarm module (14) through a lead, and the alarm module (14) is respectively arranged outside the control rooms of the underground control center (7), the ground control center (8) and the remote control center (9) to realize alarm linkage;
the underground control center (7) realizes bidirectional remote communication with the ground control center (8) and the remote control center (9) through the GE MDS SD2 wireless data transmission radio station (12).
2. The mine pressure monitoring system based on the fiber bragg grating sensor as claimed in claim 1, wherein: the central controller (11) is also connected with the storage module (15) through a lead.
3. The mine pressure monitoring system based on the fiber bragg grating sensor as claimed in claim 1, wherein: the central controller (11) also realizes bidirectional wireless communication between the underground control center (7) and the mobile terminal (16) through a GE MDS SD2 wireless data transfer station (12).
4. The mine pressure monitoring system based on the fiber bragg grating sensor as claimed in claim 1, wherein: the type of the optical fiber Fabry-Perot pressure sensor (1) is GYL50GX (A);
the type of the optical fiber embedded type stress sensor (2) is GYB1500GX (A);
the type of the fiber bragg grating displacement sensor (3) is GWY100GX (A);
the type of the optical fiber anchor rod/cable stress sensor (4) is GZL100GX (A);
the type adopted by the fiber bragg grating demodulator (6) is YGSJ-15;
the central controller (11) adopts a model of SIMATIC S7-200 SMART.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023298387.3U CN214035788U (en) | 2020-12-31 | 2020-12-31 | Mine pressure monitoring system based on fiber bragg grating sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023298387.3U CN214035788U (en) | 2020-12-31 | 2020-12-31 | Mine pressure monitoring system based on fiber bragg grating sensor |
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| CN214035788U true CN214035788U (en) | 2021-08-24 |
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| CN202023298387.3U Active CN214035788U (en) | 2020-12-31 | 2020-12-31 | Mine pressure monitoring system based on fiber bragg grating sensor |
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Address after: Building 15-1-1-1, No. 5 Chuangfu Road, Wulidian Street, Jiangbei District, Chongqing, 400000 Patentee after: Chongqing Baian Technology Co.,Ltd. Address before: 400000 1st floor, 38 Gangcheng Middle Road, Jiangbei District, Chongqing Patentee before: Chongqing Baian Technology Co.,Ltd. |
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