CN214196216U - Coal mine shaft online monitoring system based on fiber grating sensor - Google Patents
Coal mine shaft online monitoring system based on fiber grating sensor Download PDFInfo
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- CN214196216U CN214196216U CN202023316615.5U CN202023316615U CN214196216U CN 214196216 U CN214196216 U CN 214196216U CN 202023316615 U CN202023316615 U CN 202023316615U CN 214196216 U CN214196216 U CN 214196216U
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Abstract
The utility model relates to a colliery pit shaft on-line monitoring system based on fiber grating sensor, which belongs to the colliery pit shaft on-line monitoring system technical field; the technical problem to be solved is as follows: the improvement of the hardware structure of the coal mine shaft online monitoring system based on the fiber bragg grating sensor is provided; the technical scheme for solving the technical problems is as follows: the fiber bragg grating stress sensor and the fiber bragg grating displacement sensor are respectively embedded in the wall of a shaft according to the shape of the shaft and are poured by concrete; the wall of the shaft is provided with a plurality of fiber bragg grating temperature sensors, the fiber bragg grating stress sensor, the fiber bragg grating displacement sensor and the fiber bragg grating temperature sensor are respectively connected with the input end of the fiber bragg grating demodulator through single-mode transmission optical cables, and temperature signals are converted into digital signals to be transmitted to the control end in the shaft of the control center; the utility model discloses be applied to the colliery pit shaft.
Description
Technical Field
The utility model relates to a colliery pit shaft on-line monitoring system based on fiber grating sensor belongs to colliery pit shaft on-line monitoring system technical field.
Background
At present, the trend of the total amount of coal in China is that coal beds with shallow burial depths are gradually developed, the problems faced by mining engineering are more complicated along with the increase of the mining depth of a mine, and the depth of a shaft is correspondingly increased. The shaft is the throat of a coal mine, and the safe operation of the shaft is an important guarantee for the smooth production of the coal mine. Because the geological properties of the shaft are different, the stratum conditions and the stress conditions of the shaft wall are complex and various, and the shaft is deformed, cracked and damaged in the shaft building process or the operation process, huge economic and property losses and casualty accidents are brought to the coal mine production.
At present, a monitoring system for real-time monitoring of a well wall at home and abroad works by adopting a traditional electric sensor, but because the monitoring parameters are more, the measuring points are scattered, the distribution range is wide, and the monitoring environment is severe in well wall detection, the problem that the detection efficiency is low due to the fact that the leakage detection or the excessive lead wires easily occur in the arrangement of the electric sensor to influence the structural stability is solved, all characteristic quantities of a stable state of a well shaft can not be obtained in real time in the detection, and the safety early warning of the well shaft is difficult to realize.
Therefore, a coal mine shaft online monitoring system based on a fiber grating sensor is needed to be provided, so that structural parameters and environmental parameters of a shaft wall are obtained in real time, the stress of the shaft wall is in a monitorable safety range through the analysis of the parameters, and alarm information is timely provided when the shaft is abnormal.
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 coal mine shaft online 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 coal mine shaft online monitoring system based on a fiber bragg grating sensor comprises an embedded fiber bragg grating stress sensor and a fiber bragg grating displacement sensor, wherein the fiber bragg grating stress sensor and the fiber bragg grating displacement sensor are respectively embedded in the wall of a shaft according to the shape of the shaft and are poured by concrete;
the wall of the shaft is provided with a plurality of fiber bragg grating temperature sensors for detecting the internal environment temperature of the shaft, and the fiber bragg grating stress sensor, the fiber bragg grating displacement sensor and the fiber bragg grating temperature sensor are respectively connected with the input end of a fiber bragg grating demodulator through a single-mode transmission optical cable and are used for converting shaft wall strain signals and temperature signals in the shaft, which are acquired by the fiber bragg grating stress sensor, the fiber bragg grating displacement sensor and the fiber bragg grating temperature sensor, into digital signals after processing the signals and transmitting the digital signals to the control end in the shaft of the control center;
the single-mode optical cable is fixedly embedded in the cylinder wall through concrete pouring;
the control center further comprises a ground control end and a remote control end, the control end in the well, the ground control end and the remote control end are respectively provided with a first controller, a second controller and a third controller which are used for data analysis and processing, and the first controller, the second controller and the third controller realize wireless communication through the arranged ZigBee modules;
the first controller is connected with the output end of the fiber bragg grating demodulator through a wire, the first controller is further connected with the first display screen and the storage module through wires respectively, and the power supply end of the first controller is connected with the power supply module through a wire.
The second controller is connected with the second display screen through a wire, and the third controller is connected with the third display screen through a wire.
The shaft comprises a main vertical shaft, an auxiliary vertical shaft and an air cylinder, and the embedding positions of the fiber grating stress sensor and the fiber grating displacement sensor are specifically vertically embedded and/or horizontally embedded according to the detection points of the shaft walls of the main vertical shaft, the auxiliary vertical shaft and the air cylinder.
The first controller is further connected with an alarm system through a lead, the alarm system is specifically a photoelectric alarm, and the photoelectric alarm is respectively arranged outside control rooms of the control end in the well, the ground control end and the remote control end.
The type of the fiber bragg grating stress sensor is GYB1500GX (A);
the type of the fiber bragg grating displacement sensor is GWY100GX (A);
the type of the fiber bragg grating temperature sensor is GWD120GX (A);
the type adopted by the fiber grating demodulator is YGSJ-15;
the models of the control chips adopted by the first controller, the second controller and the third controller are TMS320C 62.
The first controller is connected with the fiber bragg grating demodulator through an Ethernet cable.
The sensor detection circuit buried in the inner portion of the wall of the shaft is specifically provided with two paths, one path is used as a main measurement circuit, and the other path is used as a standby measurement circuit.
The utility model discloses beneficial effect for prior art possesses does: the utility model provides a colliery pit shaft on-line monitoring system is through the main and auxiliary vertical shaft pit shaft in the colliery, bury fiber grating stress sensor and fiber grating displacement sensor underground on the section of thick bamboo wall of dryer and carry out real-time supervision to the deformation data of the different positions of pit shaft, set up a plurality of fiber grating temperature sensor on section of thick bamboo wall surface simultaneously and carry out real-time supervision to the ambient temperature data in the pit shaft, the real-time on-line supervision to pit shaft safety data has been realized, and carry out analysis processes to measuring data through the control end in the pit, thereby to the current deformation of pit shaft, the temperature is judged, finally send alarm information to the staff through touching that the luminous electric alarm is timely, the monitoring efficiency and the reliability to pit shaft safety have.
Drawings
The present invention will be further explained with reference to the accompanying drawings:
fig. 1 is a schematic diagram of the system structure of the present invention;
fig. 2 is a schematic diagram of the circuit structure of the present invention;
in the figure: the system comprises a fiber bragg grating stress sensor 1, a fiber bragg grating displacement sensor 2, a fiber bragg grating temperature sensor 3, a fiber bragg grating demodulator 4, a well control end 5, a ground control end 6, a remote control end 7, a ZigBee module 8, a storage module 9, a power supply module 10, an alarm system 11, a first controller 51, a first display screen 52, a second controller 61, a second display screen 62, a third controller 71, a third display screen 72, a shaft 100 and a control center 200.
Detailed Description
As shown in fig. 1 and fig. 2, the utility model relates to a colliery pit shaft on-line monitoring system based on fiber grating sensor, including buried fiber grating stress sensor 1 and fiber grating displacement sensor 2, fiber grating stress sensor 1, fiber grating displacement sensor 2 are buried in the section of thick bamboo wall of pit shaft 100 and are pour with the concrete according to the pit shaft shape respectively;
the wall of the shaft 100 is provided with a plurality of fiber grating temperature sensors 3 for detecting the internal environment temperature of the shaft, the fiber grating stress sensor 1, the fiber grating displacement sensor 2 and the fiber grating temperature sensor 3 are respectively connected with the input end of the fiber grating demodulator 4 through single-mode transmission optical cables, and are used for converting shaft well wall strain signals and temperature signals in the shaft, which are collected by the fiber grating stress sensor 1, the fiber grating displacement sensor 2 and the fiber grating temperature sensor 3, into digital signals after processing, and transmitting the digital signals to the control end 5 in the shaft of the control center 200;
the single-mode optical cable is fixedly embedded in the cylinder wall through concrete pouring;
the control center 200 further comprises a ground control end 6 and a remote control end 7, the control end 5, the ground control end 6 and the remote control end 7 in the well are respectively provided with a first controller 51, a second controller 61 and a third controller 71 for data analysis and processing, and the first controller 51, the second controller 61 and the third controller 71 realize wireless communication through the set ZigBee module 8;
the first controller 51 is connected with the output end of the fiber bragg grating demodulator 4 through a conducting wire, the first controller 51 is further connected with the first display screen 52 and the storage module 9 through conducting wires, and the power supply end of the first controller 51 is connected with the power supply module 10 through a conducting wire.
The second controller 61 is connected to the second display 62 by a wire, and the third controller 71 is connected to the third display 72 by a wire.
The shaft 100 comprises a main vertical shaft, an auxiliary vertical shaft and an air cylinder, and the embedding positions of the fiber grating stress sensor 1 and the fiber grating displacement sensor 2 are specifically vertically embedded and/or horizontally embedded according to the detection points of the shaft walls of the main vertical shaft, the auxiliary vertical shaft and the air cylinder.
The first controller 51 is further connected with an alarm system 11 through a wire, the alarm system 11 is specifically a photoelectric alarm, and the photoelectric alarm is respectively arranged outside the control chambers of the control end 5 in the well, the ground control end 6 and the remote control end 7.
The type of the fiber bragg grating stress sensor 1 is GYB1500GX (A);
the type of the fiber bragg grating displacement sensor 2 is GWY100GX (A);
the type of the fiber bragg grating temperature sensor 3 is GWD120GX (A);
the type adopted by the fiber grating demodulator 4 is YGSJ-15;
the models of the control chips adopted by the first controller 51, the second controller 61 and the third controller 71 are all TMS320C 62.
The first controller 51 is connected to the fiber grating demodulator 4 through an ethernet cable.
The sensor detection circuit embedded in the inner wall of the shaft 100 is specifically set into two paths, one path is used as a main measurement circuit, and the other path is used as a standby measurement circuit.
The utility model provides a colliery pit shaft on-line monitoring system based on fiber grating sensor proposes to use fiber grating sensor to carry out pit shaft section of thick bamboo wall stress data acquisition and monitoring according to the operating condition of colliery pit shaft, based on the advantages such as fiber grating sensor technique has environmental impact less, anti-electromagnetic interference is strong, sensitivity is high, stability is good, matter light footpath is thin, anticorrosive and be fit for burying advantages such as big engineering structure with traditional structural strain monitoring technique, deformation to the pit shaft section of thick bamboo wall is measured through embedding fiber grating stress sensor 1 and fiber grating displacement sensor 2, embedding fiber grating stress sensor 1 and fiber grating displacement sensor 2 of embedding formula buries the sensor in the measuring position of settlement through concrete placement, concrete operation step is to pour fiber grating stress sensor 1 and fiber grating displacement sensor 2 on the reinforcing bar of the pit shaft wall of a well, then the thin steel wires are used for binding, concrete is poured, so that the optical fiber cables can be well protected, and meanwhile, the sensor can more easily monitor various stresses on the wall of the shaft, and accurately reflect the deformation position of the shaft.
The utility model discloses when in actual use, through 1 and fiber grating displacement sensor 2 with fiber grating stress sensor, fiber grating temperature sensor 3 carries out the position setting and fixes through the operation conditions of different pit shafts 100, simultaneously in order to improve the survival rate that detects precision and sensor, lay the sensor test circuit buried underground into two way or three ways, wherein conduct main measurement circuit all the way, carry out analysis processes on data transmission to the first controller 51 of control end 5 in the well, wherein in addition conduct reserve measurement circuit all the way or two way, when detecting a certain sensor of main measurement circuit and damaging unable feedback data, carry out data analysis with the same or relevant position's standby sensor data transmission to first controller 51, the record damages the measuring position reference numeral of sensor simultaneously, as data analysis's source.
The utility model discloses in the sensor of pit shaft 100 is laid, carry out all-round detection of laying comprehensively, at first lay the sensor at certain distance in the hoop of the upper and middle and lower three-section of pit shaft upward interval, carry out the sensor and lay according to certain angle in the vertical of pit shaft simultaneously, if according to the geological conditions of the main well shaft of colliery of certain actual operation and the destruction condition of pit shaft section of thick bamboo wall, set up 75 orientations, 204 orientations and 346 orientations of pit shaft and lay three vertical sensor test lines, the data that the sensor gathered is transmitted to fiber grating demodulation appearance 4 through the single mode optical cable and is handled the signal and converted into digital signal, digital signal transmits to first controller 51 through the ethernet interface and carries out analysis processing, data through test point feedback calculates the holistic deformation degree that reachs pit shaft test point and test line, through judging whether deformation degree is in the safety range, thereby controlling the alarm system 11 to send out alarm prompts of corresponding levels and reminding workers to take corresponding different measures.
The utility model discloses still be provided with ground control end 6 and remote control end 7 respectively on ground and long-range simultaneously, realize wireless remote communication between two liang through setting up zigBee module 8 between ground control end 6 and remote control end 7 and the downhole control end 5, simultaneously can be at downhole control end 5, ground control end 6, the first display screen 51 that sets up respectively on the remote control end 7, second display screen 62, the safe data of current pit shaft section of thick bamboo wall is shown to third display screen 72, and can look over historical data through setting up host computer software, realize the regular analysis to pit shaft section of thick bamboo wall deformation through the data contrast.
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 (7)
1. The utility model provides a colliery pit shaft on-line monitoring system based on fiber grating sensor, includes fiber grating stress sensor (1) and the fiber grating displacement sensor (2) of formula of buryying, its characterized in that: the fiber bragg grating stress sensor (1) and the fiber bragg grating displacement sensor (2) are respectively buried in the wall of the shaft (100) according to the shape of the shaft and are poured by concrete;
the wall of the shaft (100) is provided with a plurality of fiber grating temperature sensors (3) for detecting the internal environment temperature of the shaft, the fiber grating stress sensor (1), the fiber grating displacement sensor (2) and the fiber grating temperature sensors (3) are respectively connected with the input end of a fiber grating demodulator (4) through single-mode transmission optical cables and are used for processing shaft wall strain signals and temperature signals in the shaft, which are acquired by the fiber grating stress sensor (1), the fiber grating displacement sensor (2) and the fiber grating temperature sensors (3), and converting the processed signals into digital signals to be transmitted to the in-well control end (5) of the control center (200);
the single-mode transmission optical cable is fixedly embedded in the cylinder wall through concrete pouring;
the control center (200) further comprises a ground control end (6) and a remote control end (7), the control end (5) in the well, the ground control end (6) and the remote control end (7) are respectively provided with a first controller (51), a second controller (61) and a third controller (71) which are used for data analysis and processing, and the first controller (51), the second controller (61) and the third controller (71) realize wireless communication through the arranged ZigBee module (8);
the first controller (51) is connected with the output end of the fiber bragg grating demodulator (4) through a lead, the first controller (51) is further connected with the first display screen (52) and the storage module (9) through leads, and the power supply end of the first controller (51) is connected with the power supply module (10) through a lead.
2. The fiber grating sensor-based coal mine shaft online monitoring system of claim 1, wherein: the second controller (61) is connected with the second display screen (62) through a lead, and the third controller (71) is connected with the third display screen (72) through a lead.
3. The fiber grating sensor-based coal mine shaft online monitoring system of claim 1, wherein: the shaft (100) comprises a main vertical shaft, an auxiliary vertical shaft and an air cylinder, and the embedding positions of the fiber grating stress sensor (1) and the fiber grating displacement sensor (2) are specifically vertically embedded and/or horizontally embedded according to the detection points of the shaft walls of the main vertical shaft, the auxiliary vertical shaft and the air cylinder.
4. The fiber grating sensor-based coal mine shaft online monitoring system of claim 1, wherein: the first controller (51) is further connected with an alarm system (11) through a wire, the alarm system (11) is specifically a photoelectric alarm, and the photoelectric alarm is respectively arranged outside control rooms of the control end (5) in the well, the ground control end (6) and the remote control end (7).
5. The fiber grating sensor-based coal mine shaft online monitoring system of claim 1, wherein: the type of the fiber bragg grating stress sensor (1) is GYB1500GX (A);
the type of the fiber bragg grating displacement sensor (2) is GWY100GX (A);
the type of the fiber bragg grating temperature sensor (3) is GWD120GX (A);
the type adopted by the fiber bragg grating demodulator (4) is YGSJ-15;
the models of control chips adopted by the first controller (51), the second controller (61) and the third controller (71) are TMS320C 62.
6. The fiber grating sensor-based coal mine shaft online monitoring system according to claim 5, wherein: the first controller (51) is connected with the fiber grating demodulator (4) through an Ethernet cable.
7. The fiber grating sensor-based coal mine shaft online monitoring system of claim 1, wherein: the sensor detection circuit buried in the inner wall of the shaft (100) is specifically provided with two paths, one path is used as a main measurement circuit, and the other path is used as a standby measurement circuit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023316615.5U CN214196216U (en) | 2020-12-31 | 2020-12-31 | Coal mine shaft online monitoring system based on fiber grating sensor |
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| CN202023316615.5U CN214196216U (en) | 2020-12-31 | 2020-12-31 | Coal mine shaft online monitoring system based on fiber grating sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114894355A (en) * | 2022-05-07 | 2022-08-12 | 江臣 | Multi-sensor integrated road structure performance miniature monitoring equipment and system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114894355A (en) * | 2022-05-07 | 2022-08-12 | 江臣 | Multi-sensor integrated road structure performance miniature monitoring equipment and system |
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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. |