WO2015003488A1 - Optical fiber grating sensor-based coal mine underground safety comprehensive monitoring system - Google Patents
Optical fiber grating sensor-based coal mine underground safety comprehensive monitoring system Download PDFInfo
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- WO2015003488A1 WO2015003488A1 PCT/CN2014/071569 CN2014071569W WO2015003488A1 WO 2015003488 A1 WO2015003488 A1 WO 2015003488A1 CN 2014071569 W CN2014071569 W CN 2014071569W WO 2015003488 A1 WO2015003488 A1 WO 2015003488A1
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- Prior art keywords
- monitoring
- fiber grating
- coal mine
- safety
- fiber
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 107
- 239000003245 coal Substances 0.000 title claims abstract description 99
- 239000013307 optical fiber Substances 0.000 title claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 claims abstract description 19
- 238000012545 processing Methods 0.000 claims abstract description 14
- 230000003068 static effect Effects 0.000 claims abstract description 13
- 239000000835 fiber Substances 0.000 claims description 88
- 238000004458 analytical method Methods 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 230000003287 optical effect Effects 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 5
- 238000010835 comparative analysis Methods 0.000 claims description 5
- 238000010219 correlation analysis Methods 0.000 claims description 5
- 231100000279 safety data Toxicity 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 2
- 238000012806 monitoring device Methods 0.000 claims 1
- 238000005065 mining Methods 0.000 abstract description 13
- 230000007774 longterm Effects 0.000 abstract description 7
- 238000005259 measurement Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 230000008054 signal transmission Effects 0.000 abstract description 2
- 208000032365 Electromagnetic interference Diseases 0.000 abstract 1
- 239000011435 rock Substances 0.000 description 17
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 8
- 238000009423 ventilation Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000009826 distribution Methods 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 238000004880 explosion Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000002269 spontaneous effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
Definitions
- the invention relates to a coal mine underground safety monitoring system, in particular to a coal mine underground safety comprehensive monitoring system based on a fiber grating sensor.
- the monitoring methods in underground coal mines mainly include installing a fully mechanized mining support pressure sensor on the hydraulic support of the coal mining face under the coal mine, installing a roof separation sensor on the roof of the roadway, installing a load-bearing stress sensor in the coal and rock body, and supporting the surrounding rock in the roadway.
- a bolt stress sensor is installed on the anchor rod, a gas sensor is arranged on the working surface, and a temperature sensor is arranged in the gob.
- the above monitoring methods still have the following disadvantages: 1. It is susceptible to electromagnetic interference and external environmental interference, and the monitoring accuracy is not good; 2. It is not moisture-proof, has low reliability, and has a short service life, and cannot meet the requirements of long-term monitoring; Manual reading or infrared data acquisition, so the degree of automation is low, data collection is inconvenient.
- the object of the present invention is to adapt to the safe and efficient production of coal mines now, to meet the safety requirements of underground coal mines, and to provide a good monitoring effect, high measurement accuracy, good reliability, and anti-electromagnetic interference capability. Strong, real-time online long-term monitoring based on FBG sensor-based coal mine safety integrated monitoring system.
- a coal mine underground safety comprehensive monitoring system based on a fiber Bragg grating sensor, including an upper portion and a downhole portion;
- the upper portion of the well includes a fiber grating static demodulator, a computer data processing system,
- the printer, the server and the client, the client is interconnected with the server through the coal mine local area network, and the fiber grating static demodulator is connected to the downhole part through the mine transmission optical cable;
- the underground part includes the optical switch array, the work surface safety monitoring subsystem and the roadway safety a monitoring subsystem; connecting one channel of the optical switch array to the work surface safety monitoring subsystem through the communication fiber,
- the work surface safety monitoring subsystem includes at least one working surface monitoring base station, wherein each working surface monitoring base station includes at least one a station, each station corresponding to a set of fiber grating sensors, the set of fiber grating sensors comprising a fiber grating support pressure sensor, a fiber grating gas sensor, a fiber grating temperature
- the output port of the fiber grating static demodulator is connected to the computer data processing system through a network interface or an RS232 interface or a USB interface.
- the computer data processing system is embedded with demodulation analysis processing software and has the following modules:
- Input modules including mine parameter input, early warning alarm threshold input and automatic acquisition functions
- Management modules including historical queries, data sharing, and automatic storage functions
- Analysis module including trend analysis, multi-parameter correlation analysis, and comparative analysis functions
- the fiber grating support pressure sensor is arranged on the hydraulic support of the fully mechanized mining face, and the working resistance of the hydraulic support is monitored in real time as the working surface advances, so as to study the reasonable support and the surrounding rock relationship, the design and management of the roof control Provide evidence;
- the fiber grating gas sensor is arranged in the fully mechanized mining face to monitor the content of the gas at the corner of the working face, realize the safe production of the coal mine, and provide support and basis for the safe production of the coal mine and the gas outburst dangerous mine;
- the fiber grating temperature sensor is arranged in the goaf of the fully mechanized mining face, the temperature monitoring in the goaf of the working face, and the temperature change in the goaf is monitored in real time to provide reliability for preventing fire in the goaf and spontaneous combustion of coal.
- the data foundation The fiber grating temperature sensor is arranged in the goaf of the fully mechanized mining face, the temperature monitoring in the goaf of the working face, and the temperature change in the goaf is monitored in real time to provide reliability for preventing fire in the goaf and spontaneous combustion of coal.
- the fiber grating borehole stress sensor is arranged in the leading coal body at the two sides of the working face, and monitors the change process of the support pressure in the stress field during the whole process of relatively stable and significant movement of the roof rock layer, and is based on the support pressure distribution. And provide basis for decision-making ore pressure problems, such as peak pressure distribution location, range, roof pressure long-term, medium-term forecast;
- the fiber grating off-layer monitoring sensor is arranged in the roof rock layer of the bolt supporting roadway, and monitors the variation and trend of the separation layer value within the anchorage range of the roof plate and the anchorage range, and is the stability and overlying of the roof of the bolt supporting roadway. Provide a basis for monitoring the combined motion conditions of the rock formation;
- the fiber grating wind speed sensor is arranged in the roadway to monitor the ventilation volume and the ventilation speed in the coal mine roadway, and is suitable for the ventilation and return air passages, air outlets, etc. of the mines having a gas explosion hazard under the coal mine, and can continuously monitor the wind speed of the above locations.
- the amount of wind and air can monitor the wind speed and wind volume of the roadway in real time, and provide the basis for the drainage of gas in the high gas mine and the ventilation of the dirty gas in the roadway;
- the fiber grating anchor cable stress sensor and the fiber grating anchor stress sensor are arranged in the roadway rock layer, and the axial force of the monitoring bolt and the anchor cable in the anchor bolt support roadway is monitored.
- the situation provides a reliable theoretical basis for the stability monitoring of the roadway roof, ensuring the stability of the surrounding rock of the roadway and preventing the large area of surrounding rock. Fall and other accidents;
- the fiber grating water pressure sensor is arranged in the roadway to monitor the water inflow in the roadway in real time, and provides a basis for the high water inrush roadway mine to prevent coal mine water inrush accidents, which has important significance for the prediction and prevention of coal mine water damage.
- the processing steps of the demodulation analysis processing software are:
- Step 1 Number, classify and group the FBG sensors
- Step 2 Set the FBG sensor early warning alarm parameter and early warning alarm threshold according to the coal mine condition;
- Step 3 Demodulate the coal mine safety data monitored by the FBG sensor through the fiber grating static demodulator, and receive the data through the demodulation analysis processing software. The real-time data is compared with the warning alarm threshold, and the comparison result is greater than the threshold range, then the demodulation analysis processing software issues event warning and alarm information, and the real-time data is periodically stored in the monitoring parameter database;
- Step 4 Perform trend analysis, multi-parameter correlation analysis and comparative analysis on the data in the monitoring parameter database.
- Step 5 Combine the relevant parameters of the coal mine roadway and working face with the situation after analysis, the software will perform the following functions, one is the output The comprehensive prediction of underground coal mine risk, the second is to display the monitoring curve of coal mine safety parameters in real time, the third is to share data information through coal mine local area network, the fourth is to generate comprehensive reports, and the fifth is to conduct historical inquiry; Safe and efficient production of coal mines.
- the utility model has the advantages that the above-mentioned scheme is adopted, the invention utilizes a plurality of fiber grating sensors for comprehensive underground coal mine safety monitoring, adopts multiple stations, multi-parameter monitoring in the underground, multi-sensor combination, optical fiber as a transmission carrier, integrated fiber grating sensor, monitoring Good effect, high measurement accuracy, good reliability, strong anti-electromagnetic interference capability, small error in monitoring data, small impact on the environment, stable operation;
- FBG sensor is intrinsically safe, all mines use all-optical measurement and optical fiber for signal transmission, Power supply is required to ensure the safety of coal mine production and personal safety of workers;
- the system of the invention realizes real-time continuous long-term online monitoring, and has early warning and alarm functions, can provide comprehensive monitoring and risk prediction results of coal mines in time, and realizes the whole mine area.
- the data sharing is beneficial to the coal mine's in-situ personnel to understand the operation status of the coal mine underground for the first time, so as to better guide the safe production of coal mines, effectively reduce the occurrence of coal mine safety accidents, and achieve safe and efficient production of coal mines.
- the coal mine safety comprehensive monitoring system based on fiber Bragg grating sensor is used to comprehensively process coal mine safety parameter data, effectively prevent and reduce the occurrence of coal mine accidents, and achieve safe and efficient coal mine production.
- the application of fiber Bragg grating sensor to coal mine has the advantages of intrinsic safety, high measurement accuracy, strong anti-interference ability, small monitoring data error and long-term online real-time monitoring.
- the coal mine safety comprehensive monitoring system based on fiber Bragg grating sensor is used to comprehensively process coal mine safety parameter data, effectively prevent and reduce the occurrence of coal mine accidents, and achieve safe and efficient production of coal mines.
- Figure 1 is a schematic view showing the overall arrangement of the present invention.
- FIG. 2 is a functional block diagram of a computer data processing system of the present invention.
- Figure 3 is a block diagram of the composition of the working surface monitoring substation of the present invention.
- Figure 4 is a block diagram of the composition of the roadway monitoring substation of the present invention.
- FIG. 5 is a schematic diagram of a data processing process of the present invention.
- FIG. 1 is a schematic diagram of an overall arrangement structure of a system.
- a coal mine underground safety comprehensive monitoring system based on a fiber grating sensor includes an upper portion and a downhole portion, and the upper portion of the well includes a fiber grating static demodulator and a computer data processing system.
- the printer, the server and the client, the client is interconnected with the server through the coal mine local area network, and the fiber grating static demodulator is connected to the downhole portion through the mine transmission optical cable;
- the underground part includes the optical switch array, the working surface monitoring subsystem and the roadway monitoring Subsystem; connecting one channel of the optical switch array to the work surface safety monitoring subsystem through the communication fiber, the work surface monitoring subsystem includes at least one working surface monitoring base station, wherein each working surface monitoring base station includes at least one station Each station corresponds to a set of fiber grating sensors, and the set of fiber grating sensors includes a fiber grating support pressure sensor, a fiber grating gas sensor, a fiber grating temperature sensor, and a fiber grating borehole stress sensor;
- Another channel of the switch array is connected to the roadway safety monitoring subsystem, and the roadway monitoring subsystem includes at least one roadway monitoring base station, wherein each roadway monitoring base station includes at least one station, and each station corresponds to a group of fiber grating sensors.
- the output port of the fiber grating static demodulator is connected to the computer data processing system through a network interface or an RS232 interface or a USB interface.
- the system is arranged under the coal mine, and the fiber grating sensor in the safety monitoring subsystem and the roadway safety monitoring subsystem is installed to monitor the safety parameters of the coal mine.
- the fiber grating support pressure sensor is arranged on the hydraulic support of the fully mechanized mining face, and the working resistance of the hydraulic support is monitored in real time as the working surface advances, in order to study the reasonable support, the surrounding rock relationship, the roof Control design and management provide the basis.
- the fiber Bragg grating gas sensor is arranged in the fully mechanized mining face to monitor the gas content of the corners on the working surface, to achieve safe production of coal mines, and to provide support and basis for the safe production of coal and gas outburst dangerous mines.
- the fiber Bragg grating temperature sensor is arranged in the goaf of the fully mechanized mining face, used for temperature monitoring in the goaf of the working face, and monitors the temperature change in the goaf in real time to provide reliability for preventing fire in the goaf and spontaneous combustion of coal. Data foundation.
- the fiber grating borehole stress sensor is arranged in the leading roadway of the working face, which is mainly used to monitor the change process of the supporting pressure in the stress field during the whole process of relative stability and significant motion of the roof rock layer.
- Supporting pressure distribution and transfer changes to provide a basis for determining mine pressure problems, such as peak pressure distribution location, range, roof pressure forward, and medium-term forecast.
- the fiber grating off-layer monitoring sensor is arranged in the roof rock layer of the bolt support roadway for monitoring the roof anchorage range
- the variation and trend of the separation layer outside the anchorage range provide a basis for the stability of the roof of the bolt support roadway and the monitoring of the combined movement condition of the overburden.
- the fiber grating wind speed sensor is arranged in the roadway to monitor the ventilation volume and ventilation speed in the coal mine roadway. It is suitable for ventilation and return air passages and air outlets of coal mines with gas explosion hazard under the coal mine. It can continuously monitor the wind speed at the above locations. The amount of air volume can monitor the wind speed of the roadway in real time, and provide the basis for the drainage of gas in the high gas mine and the ventilation of the dirty gas in the roadway.
- the fiber grating anchor cable stress sensor and the fiber grating anchor stress sensor are arranged in the roadway rock layer, and are used for monitoring the magnitude and distribution of the axial force during the monitoring of the anchor bolt and the anchor cable in the bolt anchor cable support roadway, which is the roof of the roadway.
- the stability monitoring provides a reliable theoretical basis to ensure the stability of the surrounding rock of the roadway and prevent accidents such as large-scale collapse of surrounding rock.
- the fiber Bragg grating water pressure sensor is arranged in the roadway for real-time monitoring of the amount of water in the roadway, providing a basis for the high water inrush roadway mine, preventing the occurrence of coal mine water inrush accidents, and having important significance for the prediction and prevention of coal mine water damage.
- FIG. 4 is a schematic diagram of the process of data processing by the demodulation analysis processing software.
- the processing of the demodulation analysis processing software can be performed as follows:
- Step 1 Numbering, classifying and grouping the fiber grating sensors used in coal mines;
- Step 2 Set the FBG sensor early warning alarm parameter and early warning alarm threshold according to the coal mine condition;
- Step 3 Demodulate the coal mine safety data monitored by the FBG sensor through the fiber grating static demodulator, and receive the data through the demodulation analysis processing software. The real-time data is compared with the warning alarm threshold, and the comparison result is greater than the threshold range, then the demodulation analysis processing software issues event warning and alarm information, and the real-time data is periodically stored in the monitoring parameter database;
- Step 4 Perform trend analysis, multi-parameter correlation analysis and comparative analysis on the data in the monitoring parameter database.
- Step 5 Combine the relevant parameters of the coal mine roadway and working face with the situation after analysis, the software will perform the following functions, one is the output The comprehensive prediction of coal mine underground hazard, the second is to display the monitoring curve of coal mine safety parameters in real time, the third is to share data information through coal mine local area network, the fourth is to generate comprehensive report, and the fifth is to conduct historical inquiry.
- the early warning and alarm functions can provide comprehensive monitoring and risk prediction results in coal mines in a timely manner, and realize data sharing in the whole mine area, so that coal mine leaders can understand the operation status of coal mines in the first time, and take safety measures and better guidance. Safe production of coal mines to achieve safe and efficient production of coal mines.
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- Geochemistry & Mineralogy (AREA)
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Abstract
An optical fiber grating sensor-based coal mine underground safety comprehensive monitoring system comprising an aboveground part and an underground part. The aboveground part comprises an optical fiber grating static demodulator, a computer data processing system, a printer, a server, and a client. The underground part comprises a light switch array, a work surface safety monitoring subsystem, and a tunnel safety monitoring subsystem. Both of the monitoring subsystems at least comprise one monitoring base station. Each monitoring base station at least comprises one monitoring station. Each monitoring station corresponds to a set of optical fiber grating sensors. The monitoring system employs multiple monitoring stations, monitors multiple parameters underground, is integrated with the optical fiber grating sensors, employs all-optical measurement and optical fibers for signal transmission, is intrinsically safe, has a strong resistance against electromagnetic interferences, provides great monitoring effects, and implements real-time continuous long-term online monitoring and mining area-wide data sharing, thus improving guidance for safe production of coal, allowing for effectively reduced occurrence of coal mine safety incidents, and implementing safe and highly efficient production of coal.
Description
基于光纤光栅传感器的煤矿井下安全综合监测系统 Coal mine underground safety comprehensive monitoring system based on fiber Bragg grating sensor
技术领域 Technical field
本发明涉及一种煤矿井下安全监测系统， 具体是一种基于光纤光栅传感器的煤矿井 下安全综合监测系统。 The invention relates to a coal mine underground safety monitoring system, in particular to a coal mine underground safety comprehensive monitoring system based on a fiber grating sensor.
背景技术 Background technique
近年来， 随着采矿技术的不断提高， 我国煤矿行业得到更好更快的发展。 作为我国 其他工业行业发展的基础， 煤矿的安全生产对社会进步和国民经济的提高发挥着非常重 要的作用。 但是， 随着煤矿开采深度的不断增大， 煤矿的矿山压力显现及煤矿安全压力 更为明显， 造成的灾害也越来越严重， 如顶板冒落、 巷道变形、 冲击矿压、 瓦斯爆炸、 煤矿突水、 煤矿火灾等事故频繁发生， 因此， 给我国的煤矿业造成了巨大的损失， 严重 影响了从业人员的生命安全和矿井生产。 如果建立一个先进的矿压在线监测预警系统， 就能有效监控工作面生产， 有效地预防和减少矿压事故的发生。 In recent years, with the continuous improvement of mining technology, China's coal mining industry has achieved better and faster development. As the basis for the development of other industrial industries in China, the safe production of coal mines plays an important role in social progress and the improvement of the national economy. However, with the increasing depth of coal mining, the mine pressure in coal mines and coal mine safety pressures are more obvious, and the resulting disasters are becoming more and more serious, such as roof falling, roadway deformation, rock pressure, gas explosion, coal mines. Accidents such as water inrush and coal mine fires frequently occur. As a result, huge losses have been caused to China's coal mining industry, seriously affecting the life safety of employees and mine production. If an advanced mine pressure online monitoring and early warning system is established, it can effectively monitor the production of the working face and effectively prevent and reduce the occurrence of mine pressure accidents.
目前一些针对煤矿井下安全监测领域开发的产品设备已经取得一定的发展， 比如采 用单片机控制的振弦式传感器、 电阻应变片式传感器、 气体传感器等。 煤矿井下的监测 手段主要包括在煤矿井下综采工作面液压支架上安装综采支架压力传感器、 在巷道顶板 上安装顶板离层传感器、 在煤岩体中安装承载应力传感器、 在巷道围岩支护锚杆上安装 锚杆应力传感器、 在工作面布置瓦斯传感器、 在采空区布置温度传感器。 但是上述监测 手段仍具有以下缺点： 1、 易受电磁干扰和外界环境干扰， 监测精度不好； 2、 不防潮， 可靠性低， 使用寿命短， 无法满足长期监测的要求； 3、 独立布置和人工读取或红外采集 数据， 所以自动化程度低， 数据采集不便。 At present, some products and equipment developed for the underground coal mine safety monitoring field have achieved certain developments, such as vibrating wire sensors controlled by single-chip microcomputers, resistance strain gauge sensors, and gas sensors. The monitoring methods in underground coal mines mainly include installing a fully mechanized mining support pressure sensor on the hydraulic support of the coal mining face under the coal mine, installing a roof separation sensor on the roof of the roadway, installing a load-bearing stress sensor in the coal and rock body, and supporting the surrounding rock in the roadway. A bolt stress sensor is installed on the anchor rod, a gas sensor is arranged on the working surface, and a temperature sensor is arranged in the gob. However, the above monitoring methods still have the following disadvantages: 1. It is susceptible to electromagnetic interference and external environmental interference, and the monitoring accuracy is not good; 2. It is not moisture-proof, has low reliability, and has a short service life, and cannot meet the requirements of long-term monitoring; Manual reading or infrared data acquisition, so the degree of automation is low, data collection is inconvenient.
发明内容 Summary of the invention
技术问题： 为了克服现有技术中的不足， 本发明的目的是为了适应现在煤矿安全高 效生产， 满足煤矿井下安全需要， 提供一种监测效果好、 测量精度高， 可靠性好， 抗电 磁干扰能力强， 可实时在线长期监测的基于光纤光栅传感器的煤矿井下安全综合监测系 统。 Technical Problem: In order to overcome the deficiencies in the prior art, the object of the present invention is to adapt to the safe and efficient production of coal mines now, to meet the safety requirements of underground coal mines, and to provide a good monitoring effect, high measurement accuracy, good reliability, and anti-electromagnetic interference capability. Strong, real-time online long-term monitoring based on FBG sensor-based coal mine safety integrated monitoring system.
技术方案： 本发明的目的通过如下技术方案实现： 基于光纤光栅传感器的煤矿井下 安全综合监测系统， 包括井上部分和井下部分； 所述的井上部分包括光纤光栅静态解调 仪、 计算机数据处理系统、 打印机、 服务器和客户端， 客户端通过煤矿局域网与服务器 互联， 光纤光栅静态解调仪通过矿用传输光缆连接井下部分； 所述的井下部分包括光开 关阵列、 工作面安全监测子系统和巷道安全监测子系统； 通过通讯光纤将光开关阵列的 一个通道与工作面安全监测子系统连接， 所述的工作面安全监测子系统至少包括一个工 作面监测基站， 其中每个工作面监测基站至少包括一个测站， 每个测站对应一组光纤光 栅传感器， 所述的一组光纤光栅传感器包括光纤光栅支架压力传感器、 光纤光栅瓦斯传 感器、 光纤光栅温度传感器； 通过通讯光纤将光开关阵列的另一个通道与巷道安全监测 子系统连接， 所述的巷道安全监测子系统至少包括一个巷道监测基站， 其中每个巷道监
测基站至少包括一个测站， 每个测站对应一组光纤光栅传感器， 所述的一组光纤光栅传 感器包括光纤光栅钻孔应力传感器、 光纤光栅离层监测传感器、 光纤光栅风速传感器、 光纤光栅锚索应力传感器、 光纤光栅水压传感器、 光纤光栅锚杆应力传感器； 在煤矿井 下进行布点， 安设工作面安全监测子系统和巷道安全监测子系统内的光纤光栅传感器， 进行煤矿安全参数的监测。 Technical Solution: The object of the present invention is achieved by the following technical solutions: a coal mine underground safety comprehensive monitoring system based on a fiber Bragg grating sensor, including an upper portion and a downhole portion; the upper portion of the well includes a fiber grating static demodulator, a computer data processing system, The printer, the server and the client, the client is interconnected with the server through the coal mine local area network, and the fiber grating static demodulator is connected to the downhole part through the mine transmission optical cable; the underground part includes the optical switch array, the work surface safety monitoring subsystem and the roadway safety a monitoring subsystem; connecting one channel of the optical switch array to the work surface safety monitoring subsystem through the communication fiber, the work surface safety monitoring subsystem includes at least one working surface monitoring base station, wherein each working surface monitoring base station includes at least one a station, each station corresponding to a set of fiber grating sensors, the set of fiber grating sensors comprising a fiber grating support pressure sensor, a fiber grating gas sensor, a fiber grating temperature sensor; an optical switch array through a communication fiber Another passage is connected to the roadway safety monitoring subsystem, and the roadway safety monitoring subsystem includes at least one roadway monitoring base station, wherein each roadway monitor The base station comprises at least one station, each station corresponding to a group of fiber grating sensors, the group of fiber grating sensors comprising a fiber grating drilling stress sensor, a fiber grating separation layer monitoring sensor, a fiber grating wind speed sensor, and a fiber grating anchor Cable stress sensor, fiber grating water pressure sensor, fiber grating anchor stress sensor; locating points under the coal mine, installing a fiber grating sensor in the safety monitoring subsystem of the working face and the roadway safety monitoring subsystem to monitor the safety parameters of the coal mine.
进一步， 所述的光纤光栅静态解调仪的输出端口通过网络接口或者 RS232接口或 USB接口与计算机数据处理系统连接。 Further, the output port of the fiber grating static demodulator is connected to the computer data processing system through a network interface or an RS232 interface or a USB interface.
再者， 所述的计算机数据处理系统内嵌解调分析处理软件， 并具有如下模块： Furthermore, the computer data processing system is embedded with demodulation analysis processing software and has the following modules:
(a) 输入模块， 包括矿井参数输入、 预警报警阈值输入和自动采集功能； (a) Input modules, including mine parameter input, early warning alarm threshold input and automatic acquisition functions;
(b) 管理模块， 包括历史查询、 数据共享、 自动存储功能； (b) Management modules, including historical queries, data sharing, and automatic storage functions;
(c) 分析模块， 包括趋势分析、 多参数关联分析、 对比分析功能； (c) Analysis module, including trend analysis, multi-parameter correlation analysis, and comparative analysis functions;
(d) 输出模块， 包括超限报警、 危险预测、 综合报表和实时曲线功能。 (d) Output modules, including overrun alarms, hazard predictions, integrated reports, and real-time curve functions.
所述的光纤光栅支架压力传感器布置在综采工作面液压支架上， 随工作面的向前推 进， 实时监测液压支架的工作阻力， 为研究合理的支架一围岩关系、 顶板控制的设计和 管理提供依据； The fiber grating support pressure sensor is arranged on the hydraulic support of the fully mechanized mining face, and the working resistance of the hydraulic support is monitored in real time as the working surface advances, so as to study the reasonable support and the surrounding rock relationship, the design and management of the roof control Provide evidence;
所述的光纤光栅瓦斯传感器布置在综采工作面内， 监测工作面上隅角瓦斯的含量， 实现煤矿的安全生产， 为煤与瓦斯突出危险性矿井的安全生产提供支持与依据； The fiber grating gas sensor is arranged in the fully mechanized mining face to monitor the content of the gas at the corner of the working face, realize the safe production of the coal mine, and provide support and basis for the safe production of the coal mine and the gas outburst dangerous mine;
所述的光纤光栅温度传感器布置在综采工作面采空区内， 工作面采空区内的温度监 测， 实时监测采空区内的温度变化， 为预防采空区火灾及煤炭自燃提供可靠性的数据基 础。 The fiber grating temperature sensor is arranged in the goaf of the fully mechanized mining face, the temperature monitoring in the goaf of the working face, and the temperature change in the goaf is monitored in real time to provide reliability for preventing fire in the goaf and spontaneous combustion of coal. The data foundation.
所述的光纤光栅钻孔应力传感器布置在工作面两端巷道超前煤体中， 监测顶板岩层 在相对稳定和显著运动全过程中， 支撑压力显现在应力场中的变化过程， 为依据支撑压 力分布和转移变化而决策矿压问题提供依据， 如高峰压力分布位置、 范围、 顶板来压远 期、 中期预报； The fiber grating borehole stress sensor is arranged in the leading coal body at the two sides of the working face, and monitors the change process of the support pressure in the stress field during the whole process of relatively stable and significant movement of the roof rock layer, and is based on the support pressure distribution. And provide basis for decision-making ore pressure problems, such as peak pressure distribution location, range, roof pressure long-term, medium-term forecast;
所述的光纤光栅离层监测传感器布置在锚杆支护巷道顶板岩层内， 监测顶板锚固范 围内及锚固范围外离层值变化情况及趋势， 为锚杆支护巷道顶板的稳定性和上覆岩层的 组合运动状况的监测提供依据； The fiber grating off-layer monitoring sensor is arranged in the roof rock layer of the bolt supporting roadway, and monitors the variation and trend of the separation layer value within the anchorage range of the roof plate and the anchorage range, and is the stability and overlying of the roof of the bolt supporting roadway. Provide a basis for monitoring the combined motion conditions of the rock formation;
所述的光纤光栅风速传感器布置在巷道内， 监测煤矿巷道内的通风量和通风速度， 适用于煤矿井下具有瓦斯爆炸危险的各矿井通风回风巷、 风口等处， 可连续监测上述地 点的风速、 风量大小， 能够对所处巷道的风速风量进行实时监测， 为高瓦斯矿井内瓦斯 的抽放以及巷道内的污浊气体的通风提供依据； The fiber grating wind speed sensor is arranged in the roadway to monitor the ventilation volume and the ventilation speed in the coal mine roadway, and is suitable for the ventilation and return air passages, air outlets, etc. of the mines having a gas explosion hazard under the coal mine, and can continuously monitor the wind speed of the above locations. The amount of wind and air can monitor the wind speed and wind volume of the roadway in real time, and provide the basis for the drainage of gas in the high gas mine and the ventilation of the dirty gas in the roadway;
所述的光纤光栅锚索应力传感器和所述的光纤光栅锚杆应力传感器均布置在巷道岩 层内， 监测锚杆锚索支护巷道内监测锚杆和锚索工作时轴向力的大小及分布状况， 为巷 道顶板的稳定性监测提供可靠的理论依据， 保障巷道围岩的稳定， 防止出现围岩大面积
垮落等事故； The fiber grating anchor cable stress sensor and the fiber grating anchor stress sensor are arranged in the roadway rock layer, and the axial force of the monitoring bolt and the anchor cable in the anchor bolt support roadway is monitored. The situation provides a reliable theoretical basis for the stability monitoring of the roadway roof, ensuring the stability of the surrounding rock of the roadway and preventing the large area of surrounding rock. Fall and other accidents;
所述的光纤光栅水压传感器布置在巷道内， 实时监测巷道内的涌水量， 为高突水巷 道矿井提供依据， 防止煤矿突水事故的发生， 对煤矿水害的预测和防治研究产生重要意 义。 The fiber grating water pressure sensor is arranged in the roadway to monitor the water inflow in the roadway in real time, and provides a basis for the high water inrush roadway mine to prevent coal mine water inrush accidents, which has important significance for the prediction and prevention of coal mine water damage.
所述的解调分析处理软件的处理步骤是： The processing steps of the demodulation analysis processing software are:
步骤一： 对光纤光栅传感器进行编号、 分类和分组； Step 1: Number, classify and group the FBG sensors;
步骤二： 根据煤矿条件设置光纤光栅传感器预警报警参数和预警报警阈值； 步骤三： 通过光纤光栅静态解调仪对光纤光栅传感器实时监测的煤矿安全数据进行 解调， 经过解调分析处理软件得到接收到的实时数据与预警报警阈值进行比较， 比较的 结果大于阈值范围， 则解调分析处理软件发出事件预警及报警信息， 同时将实时数据定 时存入监测参数数据库； Step 2: Set the FBG sensor early warning alarm parameter and early warning alarm threshold according to the coal mine condition; Step 3: Demodulate the coal mine safety data monitored by the FBG sensor through the fiber grating static demodulator, and receive the data through the demodulation analysis processing software. The real-time data is compared with the warning alarm threshold, and the comparison result is greater than the threshold range, then the demodulation analysis processing software issues event warning and alarm information, and the real-time data is periodically stored in the monitoring parameter database;
步骤四： 对监测参数数据库中的数据进行趋势分析、 多参数关联分析和对比分析； 步骤五： 结合煤矿巷道和工作面的相关参数与分析后的情况， 软件将作以下功能处 理， 一是输出煤矿井下危险性的综合预测情况， 二是实时显示煤矿井下安全参数的监测 曲线， 三是通过煤矿局域网进行数据信息共享， 四是生成综合报表， 五是进行历史查询; 通过采取安全措施， 从而实现煤矿安全高效生产。 Step 4: Perform trend analysis, multi-parameter correlation analysis and comparative analysis on the data in the monitoring parameter database. Step 5: Combine the relevant parameters of the coal mine roadway and working face with the situation after analysis, the software will perform the following functions, one is the output The comprehensive prediction of underground coal mine risk, the second is to display the monitoring curve of coal mine safety parameters in real time, the third is to share data information through coal mine local area network, the fourth is to generate comprehensive reports, and the fifth is to conduct historical inquiry; Safe and efficient production of coal mines.
有益效果， 由于采用了上述方案， 本发明利用多种光纤光栅传感器进行煤矿井下安 全综合监测， 采用多测站， 井下多参数监测， 多传感器并用， 以光纤为传输载体， 集成 光纤光栅传感器， 监测效果好、 测量精度高， 可靠性好， 抗电磁干扰能力强， 监测数据 误差小、 受使用环境影响小， 运行稳定； 光纤光栅传感器本质安全， 全矿井采用全光测 量和光纤进行信号传输， 不需供电， 保证煤矿井下的生产安全与工人人身安全； 本发明 的系统实现实时连续长期在线监测， 并且具有预警及报警功能， 能及时提供煤矿井下综 合监测及危险性预测结果， 还实现了全矿区的数据共享， 有利于煤矿的井上人员第一时 间了解煤矿井下的运行状态， 以便更好的指导煤矿的安全生产， 可有效的降低煤矿安全 事故的发生， 实现煤矿安全高效生产。 基于光纤光栅传感器的煤矿安全综合监测系统， 进行煤矿安全参数数据综合处理， 有效的预防和减少煤矿事故的发生， 实现煤矿安全高 效生产。 The utility model has the advantages that the above-mentioned scheme is adopted, the invention utilizes a plurality of fiber grating sensors for comprehensive underground coal mine safety monitoring, adopts multiple stations, multi-parameter monitoring in the underground, multi-sensor combination, optical fiber as a transmission carrier, integrated fiber grating sensor, monitoring Good effect, high measurement accuracy, good reliability, strong anti-electromagnetic interference capability, small error in monitoring data, small impact on the environment, stable operation; FBG sensor is intrinsically safe, all mines use all-optical measurement and optical fiber for signal transmission, Power supply is required to ensure the safety of coal mine production and personal safety of workers; The system of the invention realizes real-time continuous long-term online monitoring, and has early warning and alarm functions, can provide comprehensive monitoring and risk prediction results of coal mines in time, and realizes the whole mine area. The data sharing is beneficial to the coal mine's in-situ personnel to understand the operation status of the coal mine underground for the first time, so as to better guide the safe production of coal mines, effectively reduce the occurrence of coal mine safety accidents, and achieve safe and efficient production of coal mines. The coal mine safety comprehensive monitoring system based on fiber Bragg grating sensor is used to comprehensively process coal mine safety parameter data, effectively prevent and reduce the occurrence of coal mine accidents, and achieve safe and efficient coal mine production.
优点： 将光纤光栅传感器应用于煤矿， 具有本质安全、 测量精度高、 抗干扰能力强， 监测数据误差小、 可实时在线长期监测的优点。 基于光纤光栅传感器的煤矿安全综合监 测系统， 进行煤矿安全参数数据综合处理， 有效的预防和减少煤矿事故的发生， 实现煤 矿安全高效生产。 Advantages: The application of fiber Bragg grating sensor to coal mine has the advantages of intrinsic safety, high measurement accuracy, strong anti-interference ability, small monitoring data error and long-term online real-time monitoring. The coal mine safety comprehensive monitoring system based on fiber Bragg grating sensor is used to comprehensively process coal mine safety parameter data, effectively prevent and reduce the occurrence of coal mine accidents, and achieve safe and efficient production of coal mines.
附图说明 DRAWINGS
图 1为本发明的整体布置结构示意图。 Figure 1 is a schematic view showing the overall arrangement of the present invention.
图 2为本发明的计算机数据处理系统的功能模块框图。
图 3为本发明的工作面监测分站组成框图。 2 is a functional block diagram of a computer data processing system of the present invention. Figure 3 is a block diagram of the composition of the working surface monitoring substation of the present invention.
图 4为本发明的巷道监测分站组成框图。 Figure 4 is a block diagram of the composition of the roadway monitoring substation of the present invention.
图 5为本发明的数据处理过程示意图。 FIG. 5 is a schematic diagram of a data processing process of the present invention.
具体实施方式 detailed description
下面结合附图对本发明的一个实施例作进一步的描述： An embodiment of the present invention will be further described below with reference to the accompanying drawings:
实施例 1 : 图 1为系统的整体布置结构示意图中，基于光纤光栅传感器的煤矿井下安 全综合监测系统包括井上部分和井下部分， 所述的井上部分包括光纤光栅静态解调仪、 计算机数据处理系统、 打印机、 服务器和客户端， 客户端通过煤矿局域网与服务器互联， 光纤光栅静态解调仪通过矿用传输光缆连接井下部分；所述的井下部分包括光开关阵列、 工作面监测子系统和巷道监测子系统； 通过通讯光纤将光开关阵列的一个通道与工作面 安全监测子系统连接， 所述的工作面监测子系统至少包括一个工作面监测基站， 其中每 个工作面监测基站至少包括一个测站， 每个测站对应一组光纤光栅传感器， 所述的一组 光纤光栅传感器包括光纤光栅支架压力传感器、 光纤光栅瓦斯传感器、 光纤光栅温度传 感器和光纤光栅钻孔应力传感器； 通过通讯光纤将光开关阵列的另一个通道与巷道安全 监测子系统连接， 所述的巷道监测子系统至少包括一个巷道监测基站， 其中每个巷道监 测基站至少包括一个测站， 每个测站对应一组光纤光栅传感器， 所述的一组光纤光栅传 感器包括光纤光栅离层监测传感器、 光纤光栅风速传感器、 光纤光栅锚索应力传感器、 光纤光栅水压传感器、 光纤光栅锚杆应力传感器。 Embodiment 1 FIG. 1 is a schematic diagram of an overall arrangement structure of a system. A coal mine underground safety comprehensive monitoring system based on a fiber grating sensor includes an upper portion and a downhole portion, and the upper portion of the well includes a fiber grating static demodulator and a computer data processing system. The printer, the server and the client, the client is interconnected with the server through the coal mine local area network, and the fiber grating static demodulator is connected to the downhole portion through the mine transmission optical cable; the underground part includes the optical switch array, the working surface monitoring subsystem and the roadway monitoring Subsystem; connecting one channel of the optical switch array to the work surface safety monitoring subsystem through the communication fiber, the work surface monitoring subsystem includes at least one working surface monitoring base station, wherein each working surface monitoring base station includes at least one station Each station corresponds to a set of fiber grating sensors, and the set of fiber grating sensors includes a fiber grating support pressure sensor, a fiber grating gas sensor, a fiber grating temperature sensor, and a fiber grating borehole stress sensor; Another channel of the switch array is connected to the roadway safety monitoring subsystem, and the roadway monitoring subsystem includes at least one roadway monitoring base station, wherein each roadway monitoring base station includes at least one station, and each station corresponds to a group of fiber grating sensors. The set of fiber grating sensors comprises a fiber grating separation layer monitoring sensor, a fiber grating wind speed sensor, a fiber grating anchor cable stress sensor, a fiber grating water pressure sensor, and a fiber grating anchor stress sensor.
进一步， 光纤光栅静态解调仪的输出端口通过网络接口或者 RS232接口或 USB接口 与计算机数据处理系统连接。 Further, the output port of the fiber grating static demodulator is connected to the computer data processing system through a network interface or an RS232 interface or a USB interface.
系统是根据煤岩层的赋存特点和物理力学性质， 在煤矿井下进行布点， 安设工作面 安全监测子系统和巷道安全监测子系统内的光纤光栅传感器，进行煤矿安全参数的监测。 According to the occurrence characteristics and physical and mechanical properties of coal and rock layers, the system is arranged under the coal mine, and the fiber grating sensor in the safety monitoring subsystem and the roadway safety monitoring subsystem is installed to monitor the safety parameters of the coal mine.
工作面安全监测子系统中：光纤光栅支架压力传感器布置在综采工作面液压支架上， 随工作面的向前推进， 实时监测液压支架的工作阻力， 为研究合理的支架一围岩关系、 顶板控制的设计和管理提供依据。 In the safety monitoring subsystem of the working face: the fiber grating support pressure sensor is arranged on the hydraulic support of the fully mechanized mining face, and the working resistance of the hydraulic support is monitored in real time as the working surface advances, in order to study the reasonable support, the surrounding rock relationship, the roof Control design and management provide the basis.
光纤光栅瓦斯传感器布置在综采工作面内， 用于监测工作面上隅角瓦斯的含量， 实 现煤矿的安全生产， 为煤与瓦斯突出危险性矿井的安全生产提供支持与依据。 The fiber Bragg grating gas sensor is arranged in the fully mechanized mining face to monitor the gas content of the corners on the working surface, to achieve safe production of coal mines, and to provide support and basis for the safe production of coal and gas outburst dangerous mines.
光纤光栅温度传感器布置在综采工作面采空区内，用于工作面采空区内的温度监测， 实时监测采空区内的温度变化， 为预防采空区火灾及煤炭自燃提供可靠性的数据基础。 The fiber Bragg grating temperature sensor is arranged in the goaf of the fully mechanized mining face, used for temperature monitoring in the goaf of the working face, and monitors the temperature change in the goaf in real time to provide reliability for preventing fire in the goaf and spontaneous combustion of coal. Data foundation.
巷道安全监测子系统中： 光纤光栅钻孔应力传感器布置在工作面超前巷道中， 主要 用于监测顶板岩层在相对稳定和显著运动全过程中， 支撑压力显现在应力场中的变化过 程， 为依据支撑压力分布和转移变化而决策矿压问题提供依据， 如高峰压力分布位置、 范围、 顶板来压远期、 中期预报。 In the roadway safety monitoring subsystem: the fiber grating borehole stress sensor is arranged in the leading roadway of the working face, which is mainly used to monitor the change process of the supporting pressure in the stress field during the whole process of relative stability and significant motion of the roof rock layer. Supporting pressure distribution and transfer changes to provide a basis for determining mine pressure problems, such as peak pressure distribution location, range, roof pressure forward, and medium-term forecast.
光纤光栅离层监测传感器布置在锚杆支护巷道顶板岩层内， 用于监测顶板锚固范围
内及锚固范围外离层值变化情况及趋势， 为锚杆支护巷道顶板的稳定性和上覆岩层的组 合运动状况的监测提供依据。 The fiber grating off-layer monitoring sensor is arranged in the roof rock layer of the bolt support roadway for monitoring the roof anchorage range The variation and trend of the separation layer outside the anchorage range provide a basis for the stability of the roof of the bolt support roadway and the monitoring of the combined movement condition of the overburden.
光纤光栅风速传感器布置在巷道内， 用于监测煤矿巷道内的通风量和通风速度， 适 用于煤矿井下具有瓦斯爆炸危险的各矿井通风回风巷、 风口等处， 可连续监测上述地点 的风速、 风量大小， 能够对所处巷道的风速风量进行实时监测， 为高瓦斯矿井内瓦斯的 抽放以及巷道内的污浊气体的通风提供依据。 The fiber grating wind speed sensor is arranged in the roadway to monitor the ventilation volume and ventilation speed in the coal mine roadway. It is suitable for ventilation and return air passages and air outlets of coal mines with gas explosion hazard under the coal mine. It can continuously monitor the wind speed at the above locations. The amount of air volume can monitor the wind speed of the roadway in real time, and provide the basis for the drainage of gas in the high gas mine and the ventilation of the dirty gas in the roadway.
光纤光栅锚索应力传感器和光纤光栅锚杆应力传感器布置在巷道岩层内， 用于监测 锚杆锚索支护巷道内监测锚杆和锚索工作时轴向力的大小及分布状况， 为巷道顶板的稳 定性监测提供可靠的理论依据， 保障巷道围岩的稳定， 防止出现围岩大面积垮落等事故。 The fiber grating anchor cable stress sensor and the fiber grating anchor stress sensor are arranged in the roadway rock layer, and are used for monitoring the magnitude and distribution of the axial force during the monitoring of the anchor bolt and the anchor cable in the bolt anchor cable support roadway, which is the roof of the roadway. The stability monitoring provides a reliable theoretical basis to ensure the stability of the surrounding rock of the roadway and prevent accidents such as large-scale collapse of surrounding rock.
光纤光栅水压传感器布置在巷道内， 用于实时监测巷道内的涌水量， 为高突水巷道 矿井提供依据， 防止煤矿突水事故的发生， 对煤矿水害的预测和防治研究产生重要意义。 The fiber Bragg grating water pressure sensor is arranged in the roadway for real-time monitoring of the amount of water in the roadway, providing a basis for the high water inrush roadway mine, preventing the occurrence of coal mine water inrush accidents, and having important significance for the prediction and prevention of coal mine water damage.
图 4为解调分析处理软件进行数据处理的过程示意图， 解调分析处理软件的处理过 程可按下列步骤进行： Figure 4 is a schematic diagram of the process of data processing by the demodulation analysis processing software. The processing of the demodulation analysis processing software can be performed as follows:
步骤一： 对煤矿井下所用的光纤光栅传感器进行编号、 分类和分组； Step 1: Numbering, classifying and grouping the fiber grating sensors used in coal mines;
步骤二： 根据煤矿条件设置光纤光栅传感器预警报警参数和预警报警阈值； 步骤三： 通过光纤光栅静态解调仪对光纤光栅传感器实时监测的煤矿安全数据进行 解调， 经过解调分析处理软件得到接收到的实时数据与预警报警阈值进行比较， 比较的 结果大于阈值范围， 则解调分析处理软件发出事件预警及报警信息， 同时将实时数据定 时存入监测参数数据库； Step 2: Set the FBG sensor early warning alarm parameter and early warning alarm threshold according to the coal mine condition; Step 3: Demodulate the coal mine safety data monitored by the FBG sensor through the fiber grating static demodulator, and receive the data through the demodulation analysis processing software. The real-time data is compared with the warning alarm threshold, and the comparison result is greater than the threshold range, then the demodulation analysis processing software issues event warning and alarm information, and the real-time data is periodically stored in the monitoring parameter database;
步骤四： 对监测参数数据库中的数据进行趋势分析、 多参数关联分析和对比分析； 步骤五： 结合煤矿巷道和工作面的相关参数与分析后的情况， 软件将作以下功能处 理， 一是输出煤矿井下危险性的综合预测情况， 二是实时显示煤矿井下安全参数的监测 曲线， 三是通过煤矿局域网进行数据信息共享， 四是生成综合报表， 五是进行历史查询。 Step 4: Perform trend analysis, multi-parameter correlation analysis and comparative analysis on the data in the monitoring parameter database. Step 5: Combine the relevant parameters of the coal mine roadway and working face with the situation after analysis, the software will perform the following functions, one is the output The comprehensive prediction of coal mine underground hazard, the second is to display the monitoring curve of coal mine safety parameters in real time, the third is to share data information through coal mine local area network, the fourth is to generate comprehensive report, and the fifth is to conduct historical inquiry.
通过采用上述的方案， 进行多测站， 多参数监测， 集成光纤光栅传感器， 以光纤为 传输载体， 抗电磁干扰能力强， 受使用环境影响小， 运行稳定， 实现实时连续长期在线 监测， 并且具有预警及报警功能， 能及时提供煤矿井下综合监测及危险性预测结果， 并 实现了全矿区的数据共享， 使煤矿领导第一时间了解煤矿井下的运行状态， 近而采取安 全措施， 更好的指导煤矿的安全生产， 从而实现煤矿安全高效生产。
By adopting the above scheme, multi-station, multi-parameter monitoring, integrated fiber Bragg grating sensor, fiber-optic transmission carrier, strong anti-electromagnetic interference capability, small impact on the use environment, stable operation, real-time continuous long-term online monitoring, and The early warning and alarm functions can provide comprehensive monitoring and risk prediction results in coal mines in a timely manner, and realize data sharing in the whole mine area, so that coal mine leaders can understand the operation status of coal mines in the first time, and take safety measures and better guidance. Safe production of coal mines to achieve safe and efficient production of coal mines.
Claims
1、 基于光纤光栅传感器的煤矿井下安全综合监测系统， 其特征在于： 包括井上部分 和井下部分； 所述的井上部分包括光纤光栅静态解调仪、 计算机数据处理系统、 打印 机、 服务器和客户端， 客户端通过煤矿局域网与服务器互联， 光纤光栅静态解调仪通过 矿用传输光缆连接井下部分； 所述的井下部分包括光开关阵列、 工作面安全监测子系统 和巷道安全监测子系统； 通过通讯光纤将光开关阵列的一个通道与工作面安全监测子系 统连接， 所述的工作面安全监测子系统至少包括一个工作面监测基站， 其中每个工作面 监测基站至少包括一个测站， 每个测站对应一组光纤光栅传感器， 所述的一组光纤光栅 传感器包括光纤光栅支架压力传感器、 光纤光栅瓦斯传感器、 光纤光栅温度传感器； 通 过通讯光纤将光开关阵列的另一个通道与巷道安全监测子系统连接， 所述的巷道安全监 测子系统至少包括一个巷道监测基站， 其中每个巷道监测基站至少包括一个测站， 每个 测站对应一组光纤光栅传感器， 所述的一组光纤光栅传感器包括光纤光栅钻孔应力传感 器、 光纤光栅离层监测传感器、 光纤光栅风速传感器、 光纤光栅锚索应力传感器、 光纤 光栅水压传感器、 光纤光栅锚杆应力传感器； 在煤矿井下进行布点， 安设工作面安全监 测子系统和巷道安全监测子系统内的光纤光栅传感器， 进行煤矿安全参数的监测。 1. A comprehensive coal mine safety monitoring system based on fiber grating sensors, which is characterized by: including an above-ground part and an underground part; the above-ground part includes a fiber grating static demodulator, a computer data processing system, a printer, a server and a client, The client is interconnected with the server through the coal mine LAN, and the fiber grating static demodulator is connected to the underground part through the mine transmission optical cable; the underground part includes an optical switch array, a working surface safety monitoring subsystem and a tunnel safety monitoring subsystem; through communication optical fiber Connect one channel of the optical switch array to the working surface safety monitoring subsystem. The working surface safety monitoring subsystem includes at least one working surface monitoring base station, wherein each working surface monitoring base station includes at least one measuring station, and each measuring station Corresponding to a set of fiber grating sensors, the set of fiber grating sensors includes a fiber grating bracket pressure sensor, a fiber grating gas sensor, and a fiber grating temperature sensor; another channel of the optical switch array is connected to the tunnel safety monitoring subsystem through the communication optical fiber. , the tunnel safety monitoring subsystem includes at least one tunnel monitoring base station, wherein each tunnel monitoring base station includes at least one measuring station, each measuring station corresponds to a group of fiber grating sensors, and the group of fiber grating sensors includes fiber grating Borehole stress sensor, Fiber Bragg grating detachment monitoring sensor, Fiber Bragg grating wind speed sensor, Fiber Bragg grating anchor stress sensor, Fiber Bragg grating water pressure sensor, Fiber Bragg grating anchor stress sensor; Distribute points underground in coal mines and install working face safety monitoring devices. Fiber grating sensors in the system and tunnel safety monitoring subsystem monitor coal mine safety parameters.
2、 根据权利要求书 1 所述的基于光纤光栅传感器的煤矿井下安全综合监测系统， 其 特征在于： 所述的光纤光栅静态解调仪的输出端口通过网络接口或 RS232接口或 USB接 口与计算机数据处理系统连接。 2. The coal mine underground safety comprehensive monitoring system based on fiber grating sensors according to claim 1, characterized in that: the output port of the fiber grating static demodulator communicates with computer data through a network interface or an RS232 interface or a USB interface. Handle system connections.
3、 根据权利要求书 1 所述的基于光纤光栅传感器的煤矿井下安全综合监测系统， 其 特征在于： 所述的计算机数据处理系统内嵌解调分析处理软件， 并具有如下模块： 3. The coal mine underground safety comprehensive monitoring system based on fiber grating sensors according to claim 1, characterized in that: the computer data processing system has embedded demodulation analysis and processing software and has the following modules:
(a) 输入模块， 包括矿井参数输入、 预警报警阈值输入和自动采集功能； (a) Input module, including mine parameter input, early warning threshold input and automatic collection function;
(b) 管理模块， 包括历史查询、 数据共享、 自动存储功能； (b) Management module, including historical query, data sharing, and automatic storage functions;
(c) 分析模块， 包括趋势分析、 多参数关联分析、 对比分析功能； (c) Analysis module, including trend analysis, multi-parameter correlation analysis, and comparative analysis functions;
(d) 输出模块， 包括超限报警、 危险预测、 综合报表和实时曲线功能。 (d) Output module, including over-limit alarm, risk prediction, comprehensive report and real-time curve functions.
4、 根据权利要求书 1 所述的基于光纤光栅传感器的煤矿井下安全综合监测系统， 其 特征在于： 所述的解调分析处理软件的处理步骤是： 4. The coal mine underground safety comprehensive monitoring system based on fiber grating sensors according to claim 1, characterized in that: the processing steps of the demodulation analysis and processing software are:
步骤一： 对光纤光栅传感器进行编号、 分类和分组； Step 1: Number, classify and group fiber Bragg grating sensors;
步骤二： 根据煤矿条件设置光纤光栅传感器预警报警参数和预警报警阈值； 步骤三： 通过光纤光栅静态解调仪对光纤光栅传感器实时监测的煤矿安全数据进行 解调， 经过解调分析处理软件得到接收到的实时数据与预警报警阈值进行比较， 比较的 结果大于阈值范围， 则解调分析处理软件发出事件预警及报警信息， 同时将实时数据定 时存入监测参数数据库； Step 2: Set the early warning parameters and early warning thresholds of the fiber Bragg grating sensor according to the coal mine conditions; Step 3: Demodulate the coal mine safety data monitored in real time by the fiber Bragg grating sensor through the fiber Bragg grating static demodulator, and receive it through the demodulation analysis and processing software The received real-time data is compared with the early warning alarm threshold. If the comparison result is greater than the threshold range, the demodulation analysis and processing software issues event early warning and alarm information, and at the same time, the real-time data is regularly stored in the monitoring parameter database;
步骤四： 对监测参数数据库中的数据进行趋势分析、 多参数关联分析和对比分析； 步骤五： 结合煤矿巷道和工作面的相关参数与分析后的情况， 软件将作以下功能处 理， 一是输出煤矿井下危险性的综合预测情况， 二是实时显示煤矿井下安全参数的监测
曲线， 三是通过煤矿局域网进行数据信息共享， 四是生成综合报表， 五是进行历史查 询； 通过采取安全措施， 近而实现煤矿安全高效生产。
Step 4: Conduct trend analysis, multi-parameter correlation analysis and comparative analysis on the data in the monitoring parameter database; Step 5: Combined with the relevant parameters of the coal mine tunnel and working face and the analyzed situation, the software will perform the following functions: First, output Comprehensive prediction of underground coal mine hazards, and second, real-time monitoring of coal mine safety parameters Curve, the third is to share data information through the coal mine LAN, the fourth is to generate comprehensive reports, and the fifth is to conduct historical inquiries; by taking safety measures, safe and efficient production of coal mines can be achieved in the near future.
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| AU2014289871A AU2014289871B2 (en) | 2013-07-08 | 2014-01-27 | Optical fiber grating sensor-based coal mine underground safety comprehensive monitoring system |
| RU2016103786A RU2623392C1 (en) | 2013-07-08 | 2014-01-27 | Ongoing monitoring comprehensive system for safety in underground coal mines with the use of fiber-optical sensors made on the basis of the lattice |
| ZA2016/00831A ZA201600831B (en) | 2013-07-08 | 2016-02-05 | Optical fiber grating sensor-based coal mine underground safety comprehensive monitoring system |
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Also Published As
| Publication number | Publication date |
|---|---|
| AU2014289871A1 (en) | 2016-02-25 |
| RU2623392C1 (en) | 2017-06-26 |
| CN103362553A (en) | 2013-10-23 |
| AU2014289871B2 (en) | 2017-03-23 |
| CN103362553B (en) | 2015-06-10 |
| ZA201600831B (en) | 2017-03-29 |
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