CN104481515A - Concealed fire source detection system and detection method in goaf - Google Patents
Concealed fire source detection system and detection method in goaf Download PDFInfo
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- CN104481515A CN104481515A CN201410701021.6A CN201410701021A CN104481515A CN 104481515 A CN104481515 A CN 104481515A CN 201410701021 A CN201410701021 A CN 201410701021A CN 104481515 A CN104481515 A CN 104481515A
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- 238000001514 detection method Methods 0.000 title claims abstract description 26
- 239000003245 coal Substances 0.000 claims abstract description 20
- 230000003287 optical effect Effects 0.000 claims abstract description 16
- 230000008054 signal transmission Effects 0.000 claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 238000004891 communication Methods 0.000 claims description 24
- 238000005065 mining Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 239000011490 mineral wool Substances 0.000 claims description 3
- 229910000838 Al alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 239000010445 mica Substances 0.000 claims description 2
- 229910052618 mica group Inorganic materials 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 claims description 2
- 238000012546 transfer Methods 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 abstract description 9
- 238000009529 body temperature measurement Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 16
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 230000007115 recruitment Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
- E21B47/07—Temperature
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
- E21B47/13—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling by electromagnetic energy, e.g. radio frequency
- E21B47/135—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling by electromagnetic energy, e.g. radio frequency using light waves, e.g. infrared or ultraviolet waves
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/40—Network security protocols
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- Geophysics (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Computer Networks & Wireless Communication (AREA)
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Abstract
The invention discloses a concealed fire source detection system in a goaf. The detection system comprises a plurality of wireless temperature sensor network node devices, CANs (Controller Area Network), a data receiving module and an upper computer, wherein the CANs are distributed in roadways, the data receiving module is arranged on the ground, the plurality of wireless temperature sensor network node devices are respectively hang on the CANs connected with the data receiving module through an optical cable and the data receiving module is connected with the upper module. During the coalmine production period, the plurality of wireless temperature sensor network node devices are arranged at regular intervals when a working surface is propelled, the CANs are arranged in the roadways at the two sides of the working surface, the plurality of wireless temperature sensor network node devices are respectively hung on the CANs, signal transmission optical cables are paved to the ground along the underground roadways and are connected with the ground data receiving module, and the data receiving module is connected with the upper computer of a monitoring chamber. The concealed fire source detection system provided by the invention has the advantages of improving the detection precision of the concealed fire source of the coal goaf, the problems that the temperature measurement response of the goaf can be solved, and the labor problems of the temperature measurement of the coal goaf can be solved.
Description
Technical field
The present invention relates to a kind of temp measuring method and system, particularly relate to a kind of can the method for multi-shot continuous measure coal mine gob adverse circumstances scene temperature change, thus reach the object of detection goaf concealed fire.
Background technology
At present, the method for coal mine gob concealed fire detection mainly contains infrared remote sensing imaging method, isotope test, radio wave method, geological radar method etc., and various method has oneself pluses and minuses and the scope of application.
In goaf, coal temperature is the important parameter characterizing coal body burning things which may cause a fire disaster point, therefore monitors temperature in goaf and has great importance for detection goaf burning things which may cause a fire disaster.China's coal-mine takes fully mechanized mining mostly, is all caving formula management top board, and goaf is with adopting with emitting, and by the top board compacting of inbreak, this just causes the inconvenience of measuring goaf temperature.The monitoring method of current employing is generally by goaf internal drilling, then temperature probe is sent into monitor temperature in boring.Not only cost is higher to adopt thermometric in this way, and needs to drill to goaf in process of production, and therefore affecting production wastes time and energy, and also cannot realize the Real-Time Monitoring to temperature in goaf simultaneously.
The present invention utilizes direct temperature measurement method Coal Mine Gob concealed fire, and for grasping coal mine gob Temperature Distribution comprehensively, the main sensor adopting pyroelectric signal, comprises thermistor (temperature) sensor and thermocouple sensor at present.They are all that application pyroelectric signal processes, and therefore more responsive to environment, can the quality of surrounding environment directly have influence on system and normally run.Meanwhile, sensor needs Power supply, and the signal of transmission is the signal of telecommunication, and antijamming capability is more weak, and reliability is lower, again because goaf environment is severe, therefore there is many potential safety hazards.
Summary of the invention
The object of the present invention is to provide a kind of a kind of goaf concealed fire detection system and the detection method of measuring coal mine gob temperature, this system carries out thermometric based on the network node of wireless temperature sensor of MANET to goaf, achieves and carries out passive, real-time and multi-point continuous monitoring to the large-area variations in temperature in coal mine gob.
The technical scheme adopted is:
A kind of goaf concealed fire detection system, comprises CAN network, transmission cable, the data reception module being arranged on ground and the host computer laid in multiple network node of wireless temperature sensor device, tunnel, goaf.
Network node of wireless temperature sensor device, comprises sensing module, microprocessor, power module, communication module, spherical shell.Power module, sensing module, microprocessor and communication module are encapsulated in respectively after in module protection housing and are installed in spherical shell, and module protection housing is fixedly connected with spherical shell inwall by multiple steel pipe or support plate.
The output voltage terminals of power module is connected with the voltage input interface of sensing module, microprocessor and communication module respectively, for sensing module, microprocessor and communication module provide power supply.The signal output part of sensing module is connected with the corresponding interface of microprocessor, and the signal output part of microprocessor is connected with the signal input interface of communication module.
Multiple without temperature sensor network node apparatus, coal mine work area fully mechanized mining supporter rear, goaf is laid in by designing requirement, based on ZigBee wireless communication technique composition CAN network, and by optical cable be arranged on ground data reception module and host computer is connected.
A kind of goaf concealed fire detection method, at coal mine work area fully mechanized mining supporter rear, pre-plugged network node of wireless temperature sensor device, propelling along with work plane continues to lay node apparatus, the arrangement pitch of node apparatus and quantity can adjust according to field condition, then in tunnel, CAN network is arranged, be connected with host computer with the data reception module on ground finally by Signal transmissions optical cable, Real-Time Monitoring goaf temperature on the host computer on ground, thus the object reaching detection goaf concealed fire.
Described fully mechanized mining supporter is the main equipment of mechanize working face, and it can reliably and effectively support and control face roof, and isolation goaf, keeps the underground job space of safety, and the mechanization realizing stope and relevant device thereof is passed.
Advantage of the present invention and effect are:
1, improve coal mine gob concealed fire detection accuracy.The thermistor (temperature) sensor extensively adopted at present and thermocouple sensor can only measure the temperature of goaf surface float coal and spoil, or utilize the temperature of the method monitoring ad-hoc location imbedded in advance, and temperature-measuring range is little, does not reach the effect of detection concealed fire.
2, solve coal mine gob thermometric and respond problem slowly.When utilizing network node of wireless temperature sensor system thermometric based on MANET, can fast, real-time and on-line monitoring goaf temperature, compared with portable temperature measurement tool thermometric, substantially reduce the thermometric cycle.
3, the recruitment problem of coal mine gob thermometric is solved.Adopting during portable temperature measurement tool thermometric needs special messenger to remove down-hole thermometric every day, when utilizing the network node of wireless temperature sensor system based on MANET, can liberate part labour, improve operating efficiency.
Accompanying drawing explanation
Fig. 1 is network node of wireless temperature sensor device schematic diagram.
Fig. 2 is goaf concealed fire detection system schematic diagram.
Detailed description of the invention
A kind of goaf concealed fire detection system, comprises multiple network node of wireless temperature sensor device 3, the CAN network 6 be laid in tunnel, is laid in ground data reception module 7 and host computer 8.Multiple network node of wireless temperature sensor device 3 is articulated in CAN network 6 respectively.CAN network 6 is connected with data reception module 7 by optical cable 5, and data reception module 7 is connected with host computer 8.
Network node of wireless temperature sensor device 3, comprises power module 9, sensing module 10, microprocessor 11, communication module 12, spherical shell 14.Power module 9, sensing module 10, microprocessor 11 and communication module 12 are encapsulated in respectively after in module protection housing 13 and are installed in spherical shell 14, and module protection housing 13 is connected with spherical shell 14 inwall by four steel pipes 15.
The voltage output end of power module 9 is connected with the voltage input end of sensing module 10, microprocessor 11 and communication module 12 respectively, 3.58V power supply is provided, the signal output part of sensing module 10 is connected with the corresponding interface of microprocessor 11, and microprocessor is connected with communication module.
Rock wool 16 is filled with between described module protection housing 13 and spherical shell 14.
Described Signal transmissions optical cable 5 is the mining reinforced armored optical cable of 4 core, and cable outer sheath can adopt flame-proof PVC sheath material, carries out the stranded armouring of steel wire with insulated jacket and cable core between cable jacket and cable core, does not wrappedly fire mica tape cable core is outer.
Described CAN network is a kind of serial communication bus of multiple host pattern, and use P82C250 as CAN transceiver, allow mounting 100 node apparatus in consolidated network, message transmission rate can reach 300Kbit/s.
Described data reception module adopts standard 434MHz operating frequency, and communication interface is RS232, and transmitting power is that 1dbm ~ 18dbm is adjustable, and supply voltage is 10V, and transfer rate is 2.4 Kbit/s ~ 256 Kbit/s.
Described host computer is made up of Industrial Personal Computer (IPC) and display, for completing the calculation process to optical signal, extracting external information, and showing in the mode that people are familiar with.
Described sensing module 10 adopts temperature pick up, and for collecting temperature data, and by the data delivery that collects to microprocessor 11, sensing module 10 adopts TMP112AIDRLT temperature pick up.
Described microprocessor 11 receives for the communication signal sent according to communication module 12 temperature signal that sensing module 10 sends, process and sends, for controlling the process operation, Routing Protocol, synchronously location, power managed, task management etc. of whole sensor node apparatus, the main control chip of microprocessor 11 adopts ATmega128L microcontroller.
Described communication module 12 is connected with micro-process 11 device, is radio receiving transmitting module, is responsible for carrying out radio communication with other node apparatus, and exchange of control information and transmitting-receiving image data, the radio frequency chip of communication module 12 adopts nRF2401 transceiving chip.
Described module protection housing adopts the closed shell made of aluminum alloy materials, not only can as module protection shell but also the explosion-proof shell that can use as underground coal mine.
Described spherical shell adopts ironwork to make, both can as sensing probe sensing external environment variations in temperature, again can as antenna outwardly signal transmission.Because its resistance to compression and impact strength are large, antenna is made to obtain protection.
Described obturator is as isolation layer, and the isolated extraneous high temperature of more than 110 DEG C, especially can play the effect to power module protection, solves the difficult problem that lithium battery high temperature explosive explodes, can the material of the good heat-insulation effect such as filling rock wool and air.
The detection method of a kind of goaf concealed fire is:
During coal production, along with the propelling of work plane 4 is in the goaf 1 at fully mechanized mining supporter 2 rear, multiple network node of wireless temperature sensor devices 3 is arranged according to certain intervals, node apparatus arrangement pitch can adjust according to the width of goaf oxidation intensification band, CAN network 6 is arranged in the tunnel of work plane 4 both sides, multiple network node of wireless temperature sensor device 3, be hung on respectively in CAN network, Signal transmissions optical cable 5 is routed to ground along underworkings always, and be connected with the data reception module 7 on ground, data reception module 7 is connected with the host computer 8 of Control Room.
The total data that network node of wireless temperature sensor device 3 gathers, the data reception module 7 on ground is transferred to by CAN network 6 and Signal transmissions optical cable 5, optical signal arrives the host computer 8 of Control Room after data reception module 7 processes, finally Real-Time Monitoring goaf temperature on the host computer on ground, thus reach the object of detection goaf concealed fire.
Complicated or the work plane of coal mine tunnel structure apart from aboveground longer time, underground signal transmission can carry out redirect by optical fiber switch, directly main cable is routed to ground monitoring room by main shaft mouth, thus simplifies system composition, reduces loss of optical signal.
Claims (4)
1. a goaf concealed fire detection system, it is characterized in that: comprise multiple network node of wireless temperature sensor device (3), the CAN network (6) be laid in tunnel, be laid in ground data reception module (7) and host computer (8), multiple network node of wireless temperature sensor device (3) is articulated in CAN network (6) respectively, CAN network (6) is connected with data reception module (7) by optical cable (5), and data reception module (7) is connected with host computer (8).
2. a kind of goaf according to claim 1 concealed fire detection system, it is characterized in that: described network node of wireless temperature sensor device (3), comprise power module (9), sensing module (10), microprocessor (11), communication module (12), spherical shell (14), power module (9), sensing module (10), microprocessor (11) and communication module (12) are encapsulated in respectively after in module protection housing (13) and are installed in spherical shell (14), module protection housing (13) is connected with spherical shell (14) inwall by four steel pipes (15), the voltage output end of power module (9) is connected with the voltage input end of sensing module (10), microprocessor (11) and communication module (12) respectively, 3.58V power supply is provided, the signal output part of sensing module (10) is connected with the corresponding interface of microprocessor (11), and microprocessor is connected with communication module.
3. a kind of goaf according to claim 1 concealed fire detection system, is characterized in that: be filled with rock wool (16) between described module protection housing (13) and spherical shell (14); Described Signal transmissions optical cable (5) is the mining reinforced armored optical cable of 4 core, and cable outer sheath can adopt flame-proof PVC sheath material, carries out the stranded armouring of steel wire with insulated jacket and cable core between cable jacket and cable core, does not wrappedly fire mica tape cable core is outer; Described CAN network is a kind of serial communication bus of multiple host pattern, and use P82C250 as CAN transceiver, allow mounting 100 node apparatus in consolidated network, message transmission rate can reach 300Kbit/s; Described data reception module adopts standard 434MHz operating frequency, and communication interface is RS232, and transmitting power is that 1dbm ~ 18dbm is adjustable, and supply voltage is 10V, and transfer rate is 2.4 Kbit/s ~ 256 Kbit/s; Described sensing module (10) adopts temperature pick up, and sensing module (10) adopts TMP112AIDRLT temperature pick up; The main control chip of described microprocessor (11) adopts ATmega128L microcontroller; The radio frequency chip of communication module (12) adopts nRF2401 transceiving chip; Described module protection housing is the closed shell adopting aluminum alloy materials to make; Described spherical shell adopts ironwork to make.
4. the detection method of a goaf concealed fire, it is characterized in that: during coal production, along with the propelling of work plane (4) is in the goaf (1) at fully mechanized mining supporter (2) rear, multiple network node of wireless temperature sensor devices (3) is arranged according to certain intervals, node apparatus arrangement pitch can adjust according to the width of goaf oxidation intensification band, CAN network (6) is arranged in the tunnel of work plane (4) both sides, multiple network node of wireless temperature sensor device (3), be hung on respectively in CAN network, Signal transmissions optical cable (5) is routed to ground along underworkings always, and be connected with the data reception module (7) on ground, data reception module (7) is connected with the host computer (8) of Control Room.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410701021.6A CN104481515A (en) | 2014-11-28 | 2014-11-28 | Concealed fire source detection system and detection method in goaf |
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| CN201410701021.6A CN104481515A (en) | 2014-11-28 | 2014-11-28 | Concealed fire source detection system and detection method in goaf |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106567739A (en) * | 2016-10-28 | 2017-04-19 | 中煤科工集团西安研究院有限公司 | Mine fire abnormal area detection method based on directional drilling technique |
| CN108798649A (en) * | 2018-04-18 | 2018-11-13 | 中国矿业大学 | It is a kind of for spontaneous combustionof coal temperature sensing with boring temperature measuring equipment |
| CN109959459A (en) * | 2019-04-12 | 2019-07-02 | 枣庄矿业集团新安煤业有限公司 | Scalability temperature measuring device |
| CN110221023A (en) * | 2018-03-02 | 2019-09-10 | 光力科技股份有限公司 | A kind of determination method and measuring system of three band of coal mine gob spontaneous combustion |
| CN110219697A (en) * | 2018-03-02 | 2019-09-10 | 光力科技股份有限公司 | A kind of thermometry and system of underground goaf |
| CN110221022A (en) * | 2018-03-02 | 2019-09-10 | 光力科技股份有限公司 | A kind of gas concentration measuring method and system of underground goaf |
| CN110989018A (en) * | 2019-12-17 | 2020-04-10 | 山东科技大学 | Goaf fire source position detection system and detection method based on natural potential method |
| CN111948729A (en) * | 2020-08-14 | 2020-11-17 | 河南理工大学 | Multi-mode and multi-node based underground coal mine hidden fire source detection system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106567739A (en) * | 2016-10-28 | 2017-04-19 | 中煤科工集团西安研究院有限公司 | Mine fire abnormal area detection method based on directional drilling technique |
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| CN110221022A (en) * | 2018-03-02 | 2019-09-10 | 光力科技股份有限公司 | A kind of gas concentration measuring method and system of underground goaf |
| CN108798649A (en) * | 2018-04-18 | 2018-11-13 | 中国矿业大学 | It is a kind of for spontaneous combustionof coal temperature sensing with boring temperature measuring equipment |
| CN109959459A (en) * | 2019-04-12 | 2019-07-02 | 枣庄矿业集团新安煤业有限公司 | Scalability temperature measuring device |
| CN110989018A (en) * | 2019-12-17 | 2020-04-10 | 山东科技大学 | Goaf fire source position detection system and detection method based on natural potential method |
| CN111948729A (en) * | 2020-08-14 | 2020-11-17 | 河南理工大学 | Multi-mode and multi-node based underground coal mine hidden fire source detection system |
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Application publication date: 20150401 |