CN202325687U - Mine safety monitoring, early-warning and positioning device based on optical fibre sensing - Google Patents
Mine safety monitoring, early-warning and positioning device based on optical fibre sensing Download PDFInfo
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- CN202325687U CN202325687U CN201120455077XU CN201120455077U CN202325687U CN 202325687 U CN202325687 U CN 202325687U CN 201120455077X U CN201120455077X U CN 201120455077XU CN 201120455077 U CN201120455077 U CN 201120455077U CN 202325687 U CN202325687 U CN 202325687U
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Abstract
The utility model discloses a mine safety monitoring, early-warning and positioning device based on optical fibre sensing. The mine safety monitoring, early-warning and positioning device comprises a host machine (2) arranged in a mine surface central control room as well as a front-end optical processing module (3) and a tail-end optical processing module (5) arranged in a mine, wherein the front-end optical processing module (3) is placed at the initial position of a main mine tunnel, and the upper end thereof is connected with the host machine (2) via a sensing optical cable; the tail-end optical processing module (5) is arranged at the end of each mine tunnel branch or moves forwards with a dynamic mining face; the lower end of the front-end optical processing module (3) is connected with the sensing optical cable (4); the sensing optical cable (4) is arranged along the mine tunnel; and two fibre cores with opposite optical path transmission directions are divided from each mine tunnel branch, and the tail ends of the fibre cores are connected with the tail-end optical processing module (5).
Description
Technical field
The utility model relates to Fibre Optical Sensor and the safety monitoring of mine special environment, is specially the passive mining safety monitoring of a kind of front end, early warning and positioner.
Background technology
China's mine accident takes place frequently.With the colliery is example: the accidents caused factor in down-hole has gas leakage, blast, falling rocks, landslide, situation such as permeable.Wherein the major accident that causes of gas accounts for about 7 one-tenth of all accidents.Therefore various underground safety monitoring systems arise at the historic moment.
Traditional underground safety monitoring system comprises: the monitoring system of cable network; The monitoring system of wireless network.
The shortcoming of cable network monitoring system is: wiring is complicated, is difficult to follow the tracks of dynamic excavation surface arranging system; The shortcoming of wireless network monitoring system is: have signal blind zone.The shortcoming that both have is: the power supply power supply need be adopted in the down-hole, is easy to bring potential safety hazard, when the down-hole has an accident, often causes power failure simultaneously, two kinds of monitoring system paralysis.
The utility model content
The technology of the utility model is dealt with problems and is: the deficiency that overcomes prior art; Based on mining safety monitoring, early warning and the positioner of Fibre Optical Sensor, this device is based on the optical fiber vibration sensing technology, when reaching underground safety monitoring, early warning; Simple in structure, be easy to install and realize.
The technical solution of the utility model is: based on mining safety monitoring, early warning and the positioner of Fibre Optical Sensor, be included in the main frame of grass Central Control Room laying and front end light processing module and the terminal light processing module that mine is laid down; Front end light processing module is placed on the original position of main drive, and the upper end is connected with main frame through sensing optic cable; Terminal light processing module is arranged in each drive branch end or along with dynamic excavation surface advances; The lower end of front end light processing module connects sensing optic cable; Sensing optic cable is arranged with drive; And tell two fibre cores that optic path is in the opposite direction in each drive branch, the terminal light processing module of the terminal connection of fibre core; Main frame is that sensing optic cable provides light source, and optical signal is through front end light processing module and sensing optic cable, and sensing optic cable is gathered the vibration information in the drive; The optical signal that vibration is caused phase change is through terminal light processing module reflected back front end light processing module; Front end light processing module forms interference with the optical signal of phase change with normal optical signal, generates the light intensity signal that contains vibration information, and this signal is transferred to main frame; Main frame is handled this light intensity signal; Judge oscillatory type, the position that simultaneously vibration is taken place positions, and realizes the monitoring to mine safety.
Also comprise voice acquisition device, the number of voice acquisition device is confirmed according to drive distance and demand, is connected on the sensing cable through series system, during installation, sensing optic cable is blocked two welding voice acquisition device of sensing optic cable.
Also comprise message processing module, this message processing module and security protection equipment linkage receive the alarm signal that main frame sends, and utilize this alarm signal to drive the security protection device start, realize reporting to the police.
Described sensing cable is arranged the following three kinds of modes that exist with drive: on the erecting cable of drive, the buried or drive ground that is laid in.
Described sensing optic cable is common communication cable.
The utility model compared with prior art beneficial effect is:
(1) this device safety, reliability height.Because the down-hole all devices need not power supply, not charged, anti-interference, can not cause potential safety hazard; After the outage of down-hole, can also operate as normal.Sensing optic cable adopts the armouring optical cable simultaneously, at utmost protects optical cable safety.Optical cable can be used as the sensing optic cable of native system simultaneously, can be used as the transmission cable of other system of down-hole simultaneously
(2) this device can long distance detection down-hole information.Sensing optic cable length can reach 50 kilometers.Can follow dynamic excavation surface and advance, satisfy the mine needs.
(3) this device is convenient to realize.It is various that sensing optic cable is laid mode, can lay with cable, buried or directly be placed on the drive ground, and construction is simple, is prone to install.
Description of drawings
Fig. 1 is the utility model apparatus structure sketch map;
Fig. 2 is that the utility model sensing optic cable is connected sketch map with voice acquisition device;
Fig. 3 is the sketch map that the utility model device is laid in mine.
The specific embodiment
As shown in Figure 1, this device is included in the main frame 2 of grass Central Control Room laying and the front end light processing module 3 and terminal light processing module 5 that mine is laid down; Two-wire connects expression cable or signal of telecommunication transmission in the way, and single line connects the transmission of expression optical cable.
The main frame of laying at the grass Central Control Room 2 comprises broad band laser the Lights section, light-receiving and processing section, host server and display.These all need the power supply power supply.The wideband light source function is the light source that distributed optical fiber sensing system is provided; Light-receiving and processing section function are for gathering the optical interference signals (light intensity signal that promptly contains vibration information) of passback; And carry out signal condition, comprise the photosignal conversion, at a distance from straight filtering; Signal amplifies; Output amplitude carries out the A/D conversion to voltage signal again at the voltage signal of ± 5V, with transfer of data to host server; Host server receiving light power signal data is converted into phase signal with light intensity signal, this phase signal is carried out noise reduction process after; Carry out time domain, frequency-domain analysis; Obtain a series of signal characteristic, and judge the type of vibrating, confirm location, vibration signal position simultaneously according to characteristic.If belong to unsafe conditions such as landslide, falling rocks after judging, then output alarm information.Message processing module 1 receives the alarm signal that main frame 2 sends, and output dry contact signal etc. carry out interlink warning with other security protection equipment.
Arranged light processing module, optical sensor system in the down-hole.Light processing module function is used for the sensing of vibration signal for constituting interference of light light path, and the light processing module here is made up of front end light processing module 3 and terminal light processing module 5.Optical sensor system is distributed sensing optical cable 4 and voice acquisition device 6, is laid in the down-hole, constitutes distributed sensor, and wherein voice acquisition device 6 encloses coiling, the enhanced speech signal collection through optical fiber more.The light processing module according to circumstances is arranged in the drive, and front end light processing module 3 is arranged in the drive original position, and terminal light processing module 5 is arranged in the drive end or along with dynamic excavation surface advances.Optical sensor system comprises sensing optic cable 4 and voice acquisition device 6.Sensing optic cable 4 with drive be arranged on the drive cable, on the buried or drive ground that is laid in.One section optical cable of sensing optic cable 4 terminal reservations through the new optical cable of welding, realizes following the function of dynamic excavation surface.Whenever at a distance from one of 50 meters series connection, sensing optic cable is blocked at the installation aiding device place to voice acquisition device 6, and voice acquisition device and sensing optic cable are blocked two welding, and weld adopts connector box 7 protections, and is as shown in Figure 2.All systems, equipment need not the power supply power supply in the drive.
This device is monitored for subsurface environment: when drive caves in, during falling rocks, produce obviously vibration.Sensing optic cable is sensed vibration, and front end light processing module transfers to main frame with signal, and main frame is handled signal; The reduction phase signal carries out time domain, frequency domain processing to phase signal, obtains some column signal characteristics; Judge oscillatory type, the position that vibration simultaneously takes place positions, if after being judged as landslide, falling rocks situation; Send the alarm signal of this drive, notify the duty personnel to investigate.When drive takes place through ambient sound collection and vibration signals collecting, to send alarm signal and notify personnel to investigate accident potential when permeable, realize the function of early warning.
The location of back trapped personnel takes place for accident: near have voice acquisition device, trapped personnel can be called out the positional information on the acquisition module, this transmission of sound signals reaches and outside well, transmits result of information to main frame; Near do not have voice acquisition device; Trapped personnel can knock sensing optic cable, and the vibration that the sensing optic cable induction is knocked is transferred to main frame with vibration signal; Can roughly judge personnel's drive of living in position; If through the different modes of knocking, reflect simple locating information, can also further confirm the personnel present position.Knocking the formulation of method and positional information has not given unnecessary details here.
With a mine is example (Fig. 3): main frame 2, information processing system 1 are placed on the outer Central Control Room of mine.Place front end light processing module 3 in the original position of main drive, be connected with light-receiving and processing section in the main frame through sensing optic cable 4 (can adopt common communication cable), wherein communication cable is the multifiber cable that lays with the down-hole drive, is used to transmit signal.Along with the branch of drive, drive is divided into drive 1,2,3......, and communication cable is told 2 fiber cores at each drive and linked to each other with the sensing optic cable of drive, is respectively light path output light and light path light echo.Link to each other with the sensing optic cable of drive 1 through a, b fiber cores, end connects terminal light processing module 5.Link to each other with the sensing optic cable of drive 2 through c, d, end connects terminal light processing module.Link to each other with the sensing optic cable of drive 3 through e, f, end connects terminal light processing module.Every at a distance from voice acquisition devices of 50 meters series connection in sensing optic cable.So just accomplished the layout of whole system.Specifically see accompanying drawing 3.Can utilize sensing optic cable to carry out the signal transmission of other system detector of down-hole at last, make full use of optical cable transmission advantage, replace the existing cable transmission.
The unspecified part of the utility model belongs to general knowledge as well known to those skilled in the art.
Claims (5)
1. based on mining safety monitoring, early warning and the positioner of Fibre Optical Sensor, it is characterized in that: be included in the main frame (2) of grass Central Control Room laying and front end light processing module (3) and the terminal light processing module (5) that mine is laid down; Front end light processing module (3) is placed on the original position of main drive, and the upper end is connected with main frame (2) through sensing optic cable; Terminal light processing module (5) is arranged in each drive branch end or along with dynamic excavation surface advances; The lower end of front end light processing module (3) connects sensing optic cable (4); Sensing optic cable (4) is arranged with drive; And tell two fibre cores that optic path is in the opposite direction in each drive branch, the terminal terminal light processing module (5) that connects of fibre core; Main frame (2) provides light source for sensing optic cable (4), and optical signal is through front end light processing module (3) and sensing optic cable (4), and sensing optic cable (4) is gathered the vibration information in the drive; The optical signal that vibration is caused phase change is through terminal light processing module (5) reflected back front end light processing module (3); Front end light processing module (3) forms interference with the optical signal of phase change with normal optical signal, generates the light intensity signal that contains vibration information, and this signal is transferred to main frame (2); Main frame (2) is handled this light intensity signal; Judge oscillatory type, the position that simultaneously vibration is taken place positions, and realizes the monitoring to mine safety.
2. the mining safety monitoring based on Fibre Optical Sensor according to claim 1, early warning and positioner; It is characterized in that: also comprise voice acquisition device (6); The number of voice acquisition device (6) is confirmed according to drive distance and demand, is connected on the sensing cable (4), during installation through series system; Sensing optic cable (4) is blocked two welding voice acquisition device (6) of sensing optic cable (4).
3. the mining safety monitoring based on Fibre Optical Sensor according to claim 1, early warning and positioner; It is characterized in that: also comprise message processing module (1); This message processing module (1) and security protection equipment linkage; Receive the alarm signal that main frame sends, utilize this alarm signal to drive the security protection device start, realize reporting to the police.
4. according to claim 1 or 2 or 3 described mining safety monitorings based on Fibre Optical Sensor, early warning and positioner, it is characterized in that: described sensing cable (4) is arranged the following three kinds of modes that exist with drive: on the erecting cable of drive, the buried or drive ground that is laid in.
5. the mining safety monitoring based on Fibre Optical Sensor according to claim 1, early warning and positioner is characterized in that: described sensing optic cable (4) is common communication cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120455077XU CN202325687U (en) | 2011-11-15 | 2011-11-15 | Mine safety monitoring, early-warning and positioning device based on optical fibre sensing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201120455077XU CN202325687U (en) | 2011-11-15 | 2011-11-15 | Mine safety monitoring, early-warning and positioning device based on optical fibre sensing |
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| CN202325687U true CN202325687U (en) | 2012-07-11 |
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| CN201120455077XU Expired - Lifetime CN202325687U (en) | 2011-11-15 | 2011-11-15 | Mine safety monitoring, early-warning and positioning device based on optical fibre sensing |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088669A (en) * | 2014-07-21 | 2014-10-08 | 天地（常州）自动化股份有限公司 | Coal spontaneous combustion monitoring and early warning system for coal mine goaf |
| CN107340520A (en) * | 2017-06-27 | 2017-11-10 | 电子科技大学 | A kind of underground mine disaster sign of life detection and alignment system |
| CN110530498A (en) * | 2019-08-09 | 2019-12-03 | 国家电网有限公司 | Long range optical cable dynamic monitoring system |
| WO2020157917A1 (en) * | 2019-01-31 | 2020-08-06 | 日本電気株式会社 | Optical fiber sensing system, state detection device, state detection method, and computer-readable medium |
| CN114263502A (en) * | 2021-12-31 | 2022-04-01 | 北京景通科信科技有限公司 | Optical fiber sensing-based mine post-disaster emergency communication method |
| CN114323148A (en) * | 2021-12-31 | 2022-04-12 | 北京景通科信科技有限公司 | Mine multi-disaster comprehensive detection and communication system based on optical fiber sensing |
| CN114543679A (en) * | 2022-01-17 | 2022-05-27 | 山东希尔电缆有限公司 | Distributed optical fiber online monitoring system for highway subgrade displacement and strain |
| CN114567373A (en) * | 2022-04-27 | 2022-05-31 | 高勘(广州)技术有限公司 | Mine monitoring method, device, equipment and storage medium |
| CN114567379A (en) * | 2022-04-27 | 2022-05-31 | 高勘(广州)技术有限公司 | Monitoring system applied to mine |
| CN114898766A (en) * | 2022-07-12 | 2022-08-12 | 四川高速公路建设开发集团有限公司 | Distributed optical fiber voice enhancement method based on GAN network and tunnel rescue system |
-
2011
- 2011-11-15 CN CN201120455077XU patent/CN202325687U/en not_active Expired - Lifetime
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088669B (en) * | 2014-07-21 | 2016-04-13 | 天地（常州）自动化股份有限公司 | Coal mine gob coal spontaneous combustion monitor and early warning system |
| CN104088669A (en) * | 2014-07-21 | 2014-10-08 | 天地（常州）自动化股份有限公司 | Coal spontaneous combustion monitoring and early warning system for coal mine goaf |
| CN107340520A (en) * | 2017-06-27 | 2017-11-10 | 电子科技大学 | A kind of underground mine disaster sign of life detection and alignment system |
| JP7276356B2 (en) | 2019-01-31 | 2023-05-18 | 日本電気株式会社 | OPTICAL FIBER SENSING SYSTEM, STATE DETECTION DEVICE, STATE DETECTION METHOD, AND PROGRAM |
| WO2020157917A1 (en) * | 2019-01-31 | 2020-08-06 | 日本電気株式会社 | Optical fiber sensing system, state detection device, state detection method, and computer-readable medium |
| JPWO2020157917A1 (en) * | 2019-01-31 | 2021-11-11 | 日本電気株式会社 | Fiber optic sensing system, state detector, state detection method, and program |
| US11846541B2 (en) | 2019-01-31 | 2023-12-19 | Nec Corporation | Optical fiber sensing system with improved state detection |
| US20220146303A1 (en) * | 2019-01-31 | 2022-05-12 | Nec Corporation | Optical fiber sensing system, state detection apparatus, state detection method, and computer readable medium |
| CN110530498A (en) * | 2019-08-09 | 2019-12-03 | 国家电网有限公司 | Long range optical cable dynamic monitoring system |
| CN110530498B (en) * | 2019-08-09 | 2021-08-17 | 国家电网有限公司 | Long-distance optical cable dynamic monitoring system |
| CN114323148A (en) * | 2021-12-31 | 2022-04-12 | 北京景通科信科技有限公司 | Mine multi-disaster comprehensive detection and communication system based on optical fiber sensing |
| CN114323148B (en) * | 2021-12-31 | 2023-09-15 | 北京景通科信科技有限公司 | Comprehensive detection and communication system for multiple disaster species of mine based on optical fiber sensing |
| CN114263502A (en) * | 2021-12-31 | 2022-04-01 | 北京景通科信科技有限公司 | Optical fiber sensing-based mine post-disaster emergency communication method |
| CN114543679A (en) * | 2022-01-17 | 2022-05-27 | 山东希尔电缆有限公司 | Distributed optical fiber online monitoring system for highway subgrade displacement and strain |
| CN114567373A (en) * | 2022-04-27 | 2022-05-31 | 高勘(广州)技术有限公司 | Mine monitoring method, device, equipment and storage medium |
| CN114567379A (en) * | 2022-04-27 | 2022-05-31 | 高勘(广州)技术有限公司 | Monitoring system applied to mine |
| CN114898766A (en) * | 2022-07-12 | 2022-08-12 | 四川高速公路建设开发集团有限公司 | Distributed optical fiber voice enhancement method based on GAN network and tunnel rescue system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120711 |
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| CX01 | Expiry of patent term |