CN206092070U - Mine spontaneous fire monitoring and forewarning system - Google Patents
Mine spontaneous fire monitoring and forewarning system Download PDFInfo
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- CN206092070U CN206092070U CN201621144864.1U CN201621144864U CN206092070U CN 206092070 U CN206092070 U CN 206092070U CN 201621144864 U CN201621144864 U CN 201621144864U CN 206092070 U CN206092070 U CN 206092070U
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Abstract
The utility model discloses a mine spontaneous fire monitoring and forewarning system. Mine spontaneous fire is disguised strong to easily cause the secondary calamity of gas explosion, dust explosion, cause a large amount of casualtiess, present spontaneous fire alarm system delay time is long, and easy the emergence is misrepresented deliberately and is failed to report. The system mainly includes information processing server, alarm device, communications network, extinguishing device, gas strength remote sensing device, temperature monitoring device etc, the characteristics such as gas strength of the accessible gas strength remote sensing device of system in to the monitoring area environment is monitored to through sending fire alarm to monitoring data integrated analysis such as temperature, and put out a fire. The system can accurate monitoring spontaneous fire characteristic gas, has improved alarm accuracy greatly, provides important guarantee for coal mine safe production.
Description
Technical field
The utility model is related to a kind of mine self caused fire monitoring early-warning system, and the system is related to sensor technology, laser
The fields such as technology, spectral analysis technique, signal processing technology.
Background technology
Coal is China's main energy sources, accounts for primary energy 70%.Coal industry is high risk industries, gas, fire, top
The accidents such as plate, coal dust annoying Safety of Coal Mine Production.Coal mine fire includes breeding fire and exogenous fire, breeding fire because
It is difficult to be found by force for disguise, and easily causes gas explosion, the secondary disaster of dust explosion, causes a tremendous loss of lives.
Therefore find in time and can put out in time at the breeding fire initial stage to have very important significance.The most of internal cause in colliery
Fire occurs in covered place, and traditional instrument and meter Detection Techniques are all difficult to position that is definite, rapidly finding out concealed fire
And scope.Mainly using gas-monitoring and temperature monitoring, gas-monitoring is by beam tube system to the monitoring method of breeding fire at present
System extracts sample gas and is analyzed in the face of symbolic gas to ground, because the path of gas extraction is longer, gas leakage and plugging easily occurs, and
And time delay in this way is longer, optimal fire extinguishing and escape opportunity are easily missed, in addition cannot using this monitoring method
Burning things which may cause a fire disaster is accurately positioned, is that the disaster relief is made troubles.At present fiber optic Distributed Temperature monitoring method is also applied, but optical fiber is present easily
The problems such as damaging, install complex, difficult in maintenance.Therefore a kind of new mine self caused fire monitoring early-warning system is needed, with
Meet Safety of Coal Mine Production requirement.
Utility model content
The utility model purpose is to provide a kind of mine self caused fire monitoring early-warning system, can remote sensing monitoring breeding fire
The temperature for causing and symbolic gas CH4、CO、CO2、O2、C2H2And C2H4Change in concentration, entered according to the abnormal data that obtains of monitoring
Row fire alarm, and internal cause conflagration area is put out a fire, reduce fire hazard scope.The system mainly includes gas concentration
Sensoring, device for detecting temperature, extinguishing device, netscape messaging server Netscape, warning device and communication network；Gas concentration remote sensing
Device mainly includes generating laser, laser pickoff, control process unit and display unit；Gas concentration sensoring is adopted
Open air chamber, can carry out remote sensing monitoring to multiple gases concentration in the environment of goaf；Gas concentration sensoring has Laser Measuring
Away from function；Netscape messaging server Netscape is responsible for processing gas concentration data and temperature data, according to data processed result by reporting to the police
Unit sends sound and light alarm, and by communication network fire alarm information is sent, and is put out a fire by extinguishing device.
1. system is further included described in：The generating laser employing of the gas concentration sensoring of system can be automatically adjusted
The generating laser of the direction of the launch, control process unit is carried out not with scanning monitoring mode control laser transmitter projects direction
Equidirectional gas concentration and distance monitoring.
2. the system is further included：The generating laser employing of the gas concentration sensoring of system can be automatically adjusted
The generating laser of the direction of the launch, control process unit is carried out not with scanning monitoring mode control laser transmitter projects direction
Equidirectional gas concentration and distance monitoring.
3. system is further included described in：The generating laser of the gas concentration sensoring of system is produced by lasing light emitter
Laser, lasing light emitter can produce the laser for detecting multiple gases.
4. system is further included described in：The generating laser lasing light emitter of the gas concentration sensoring of system is using adjustable
Humorous semiconductor laser；The controlled processing unit control of semiconductor laser with tunable, sends the laser of different wave length；Laser connects
Receive device and receive the laser for reflecting, laser signal is converted to into electric signal, control process cell processing electric signal obtains corresponding
Gas concentration.
5. system is further included described in：The generating laser of the gas concentration sensoring of system can send CH4、CO、
CO2、O2、C2H2And C2H4The laser of the different wave length of molecule absorption peak value.
6. system is further included described in：The equipment being arranged in system in explosion environment is explosion-proof type equipment.
7. system is further included described in：The device for detecting temperature of system include Fibre Optical Sensor, radio temperature sensor,
Thermal infrared imager, infrared thermoelectricity are released or infrared radiation thermometer.
8. system is further included described in：The extinguishing device of system includes grouting equipment.
9. system is further included described in：The extinguishing device of system includes inert gas spraying equipment.
Description of the drawings
Fig. 1 mine self caused fire monitoring early-warning system composition schematic diagrams.
Fig. 2 mine self caused fire monitoring early-warning system workflow diagrams.
The principle schematic of Fig. 3 gas concentration sensorings embodiment 1.
The principle schematic of Fig. 4 gas concentration sensorings embodiment 2.
The collimater arrangement architecture schematic diagram of Fig. 5 gas concentration sensorings embodiment 2.
Fig. 6 gas concentration sensoring workflow diagrams.
Specific embodiment
Fig. 1 is mine self caused fire monitoring early-warning system composition schematic diagram, and the system composition includes：
1. netscape messaging server Netscape (1)：It is responsible for storing each sensing data, and monitors CH4、CO、CO2、O2、C2H2
And C2H4Concentration data, temperature data change, alarm signal is sent by analyze data change, and control fire extinguishing.
2. warning device (2)：Sound and light alarm is sent by netscape messaging server Netscape control, is passed through with netscape messaging server Netscape
RS232 interface connection communications.
3. monitoring device (3)：Data query and production monitoring service are provided to produce administrative staff, by information processing services
Device provides field data, shows with alarm and GIS service function.
4. core switch (4)：It is responsible for management and the data exchange of the equipment of all access to communication networks, exchanges with down-hole
Machine (5) is connected by optical fiber.Communication network device includes core switch (4), down-hole switch (5) and substation (6).
5. down-hole switch (5)：The access of responsible substation (6) and data exchange, each down-hole switch is by optical fiber with ring
Net mode connects.
6. substation (6)：The access of responsible gas concentration sensoring (7) device for detecting temperature (8) and extinguishing device (9) and
Data exchange, with network switch function, is connected with down-hole switch (5) by optical fiber；With RS485 interfaces.
7. gas concentration sensoring (7)：Using open air chamber, remote sensing prison can be carried out to multiple gases concentration in environment
Survey, with laser ranging function, with 3D region gas concentration monitoring function, substation (6) is connected by network interface.
8. device for detecting temperature (8)：Fibre Optical Sensor, radio temperature sensor, thermal infrared imager, infrared thermoelectricity can be adopted
Release or infrared radiation thermometer in any one equipment.Fibre Optical Sensor can adopt U.S. DTS Sequence distribution formula Fibre Optical Sensors, lead to
Cross network interface connection substation；Radio temperature sensor can adopt wireless sensor network equipment, star-like connected mode, by coordinating
Device node device connects substation (6) by RS485 interfaces；Thermal infrared imager can adopt the Haikang DS- with intelligent recognition function
2CD8313PF-E25 infrared thermal imaging web cameras, directly connect substation (6) by network interface；Can adopt digital red
Outer thermoelectricity releases alarm, and by RS485 interface modules substation (6) is connected；Infrared radiation thermometer can adopt non-contact infrared temperature
Instrument DT8012B, by RS485 interface modules substation (6) is connected.
9. extinguishing device (9)：Can be using inert gas spraying equipment or grouting equipment.Extinguishing device passes through RS485 interfaces
With substation (6) connection communication.
Fig. 2 is mine self caused fire monitoring early-warning system workflow diagram：
1. (201) gas concentration sensoring (7) and device for detecting temperature (8) are by the CH for collecting4、CO、CO2、O2、
C2H2And C2H4Concentration data, temperature data sends substation (6) to.
2. (202) substation (6) receives gas concentration sensoring (7), the data of device for detecting temperature (8), and data are turned
It is sent to down-hole switch (5).
3. the core switch (4) in data transfer to well that (203) down-hole switch (5) transmits data substation.
4. (204) core switch (4) transfers data to netscape messaging server Netscape.
5. (205) netscape messaging server Netscape is stored to each sensing data, and analyze data changes, such as data variation
Meet alert and if then alarm signal is sent by RS232 Interface Controller warning devices (2) and monitoring device (3).Data exception
Including CO, CO in specific monitored area2Concentration lift-off value exceedes given threshold, CH in setting time interval4、O2、C2H2、C2H4
Concentration decreasing value exceedes given threshold in setting time interval, and the exception of every kind of gas concentration is used as an independent data
It is abnormal；Temperature data lift-off value in setting time interval exceedes given threshold；When the quantity of data exception exceedes given threshold,
Then send fire alarm；Each monitoring threshold sets or is manually set and obtains according to site environment measurement.
6. (505) warning device (2) receive information processing server (1) is believed by the controlling alarm that RS232 interfaces are transmitted
Number, send sound and light alarm.
7. the alarm signal that (506) monitoring device (3) receive information processing server (1) is transmitted by core switch (4)
Number, fire location is shown by computer display screen.
8. (507) extinguishing device (9) is received and sends substation (6) to by communication network by netscape messaging server Netscape (1), then
The control signal forwarded by RS485 interfaces by substation (6), opening controlling valve door injection inert gas or slip casting are put out a fire.
Fig. 3 for gas concentration sensoring the principle schematic of specific embodiment 1, mainly including generating laser, swash
Optical receiver, control process unit and display unit.Control process unit is responsible for controlling laser transmitter projects laser；Process and swash
The signal that optical receiver is returned obtains gas concentration and reverberation distance；Control communication interface is communicated；Control display screen shows
Show；Receive the operation signal of button and processed accordingly.Core processor (301), signal generator (302), phaselocked loop
Amplifier (303), analog-digital converter (304), digital phase discriminator (305) and other auxiliary elements；Generating laser is responsible for range finding
And the transmitting of the laser signal of gas-monitoring, including lasing light emitter (306) and head (307)；Laser pickoff is responsible for receiving laser
Signal, by laser signal electric signal is converted to, and concrete composition includes receiving lens (308), darkroom (309) and photodetector
(310)；Communication interface (311) is for Monitoring Data transmission；Display unit is responsible for gas concentration and is shown with working state of device data
The main element for showing is display screen (312).Main element includes：
1. core processor (301), using Samsung S3C2440 processors, S3C2440 is based on the micro- of ARM920T kernels
Processor,；S3C2440 has 3 UART interfaces, 2 SPI interfaces, 2 USB interfaces, 1 IIC-BUS interface；Using embedded
Formula Linux platform realizes that drive control communicates.
2. signal generator (302), are responsible for producing the tune monitored for gas concentration for controlling laser transmitter projects
Sawtooth wave control signal processed and the reference signal of signal analysis, including multiple portions such as DDS generators, filter circuit, adder
Point.
3. phaselocked loop amplifier (303), using two modules, be each responsible for extracting gas absorption signal once, it is secondary
Harmonic wave, noise is suppressed using the orthogonal property of signal and noise, improves signal to noise ratio, can mutually be amplified using LIA-MV-150 locks
Device module.
4. analog-digital converter (304), be responsible for by lock-in amplifier demodulate once, secondary analog signal be converted into numeral
Signal, can adopt 16 multi-channel a/d converter chips of ADS8364, with 6 fully differential input channels.
5. digital phase discriminator (305), responsible to process the distance measuring signal for receiving, and will receive signal and enters with control signal is sent
Row is compared, and obtains the phase difference between signal, and sends phase difference to core processor by interface with data mode.
6. lasing light emitter (306), using semiconductor laser with tunable, can send the laser of multi-wavelength, for measurement not
Same gas concentration, can be integrated using IBSG-TO5TEC series semiconductor laser with tunable, the semiconductor laser with tunable
TEC current temperatures control semiconductor element, for temperature adjustment, stabilizing wave lenth of laser and power.
7. head (307), for controlling the direction of the launch of semiconductor laser with tunable (311) and connecing for laser pickoff
Debit to, can by the external MAX485 chips in core processor SPI communication port by cradle head control protocol integrated test system head move, cloud
Platform can rotated both horizontally and vertically using video camera standard supervision head.
8. receiving lens (308), are responsible for will reflect back into the laser for coming and assemble to photodetector.
9. darkroom (309), using closed cylindrical structure, inwall applies light absorbent.
10. photodetector (310), are responsible for for the laser signal for receiving being converted to electric signal, including light receiving element
And amplifying circuit；Light receiving element adopts InGaAs PIN photodiodes, amplifying circuit main element to adopt AD603, in parallel
Two voltage followers connect respectively phaselocked loop amplifier (307) and digital phase discriminator (309).
11. communication interfaces (311), including wired communication interface and wireless communication interface, the main core of wired communication interface
Piece adopts the singlechip Ethernet mac controller that DM9000, DM9000 are completely integrated, and the procotol on upper strata is by core processing
The built-in Linux of device drives and supports.DM9000 supports 10/100M self adaptations, supports the supply voltage of 3.3V and 5V.DM9000 leads to
Network isolation transformer interface chip YL18-1080S connection RJ45 network interfaces are crossed, realizes leading to the physical connection of network
Letter；Wireless communication interface drives in system, USB port and Wifi wireless network cards drives using the Wifi wireless network cards of standard USB interface
Dynamic program realizes network communication services under supporting.
12. display screens (312), using 3.5 cun of color LCD screens, resolution ratio 480x800, carry display and drive journey by Linux
Sequence drives.
13. buttons (313), for gas concentration sensoring parameter and function setting and control, including determine, return,
Upper shifting, the function key such as move down.
Fig. 4 is the principle schematic of specific embodiment 2 of gas concentration sensoring.Embodiment 2 and embodiment 1
One difference is, using the multiple different semiconductor laser with tunable controlled by multi-channel data selector (314), to be used for
The laser of transmitting different wave length, laser need to be launched by splicer (315) and light path selector and collimater；Another area
It is not the no head of embodiment 2, and adopts 8 collimaters, each collimater points to different directions, 8 collimaters
(317) light selector switch (316) is connected, light selector switch (316) is sent splicer (315) by the control of core processor (301)
Laser carry out routing, by laser from select certain road collimater (317) send, so as to realize time division multiplexed be multiplexed.It is involved
Element it is as follows：
1. multi-channel data selector (314), are responsible between signal generator (305) and multichannel semiconductor laser with tunable
Gating, can adopt CD4051BC bilateral analog switch, by core processor (302) 3 I/O mouths control gating, 1 I/O
Mouth controlling switch；COMMON IN/OUT mouths are connected with signal generator (305), and 4 IN/OUT mouths connect respectively different tunable
Semiconductor laser (311).
2. lasing light emitter (306), using semiconductor laser with tunable, can send monitored gas absorption peak wavelength
Laser, gas with various can adopt SAF117XS Series Bellevilles tunable half using the semiconductor laser with tunable of different wave length
Conductor semiconductor laser with tunable, the integrated TEC current temperatures of the semiconductor laser with tunable control semiconductor element.
3. splicer (315), a branch of by the Laser synthesizing of different wave length using optical fiber wave multiplexer, this device each tunable half
Conductor laser adopts time division emission, so the output end at most also laser output of only one of which wavelength at any time.
4. smooth selector switch (316) can adopt the OSS light routing devices of Vispace 1000, be passed through by core processor (302)
Serial ports control routing connection.
5. collimater (317), the light beam for controlling laser orientation transmitting and being formed in space, are swashed using FC Interface Fibers
Light collimating lenses.
Fig. 5 is the collimater arrangement architecture schematic diagram of gas concentration sensoring embodiment 2.
Gas concentration sensoring workflow is as shown in Figure 6：
1. (501), core processor (301) start by set date once monitors scanning process.
2. (502), laser ranging is carried out first, and core processor (301) control signal generator (302) is producing 10M just
String ripple signal.
3. (503), sine wave signal drives lasing light emitter (306) to send the laser for detection range.Embodiment 1 is sinusoidal
Ripple signal directly drives semiconductor laser with tunable, and the sine wave signal of embodiment 2 need to be through multi-channel data selector (314)
Behind selection path, then corresponding semiconductor laser with tunable is driven, then through splicer (315), light path selector switch (316),
Laser is launched by the collimater (317) of respective angles.
4. (504), range laser runs into reverberation fraction of laser light and is reflected, and receiving lens (308) collect what is reflected
Laser is assembled to photodetector (310), and the laser signal for receiving is converted to electric signal by photodetector.
5. (505), digital phase discriminator (305) is processed after the process such as the range finding electric signal for receiving, amplified, mixing, is obtained
Obtain and send the phase difference between control signal, phase difference sends core processor to data mode by interface.
6. (506), core processor (301) receiving phase difference data, obtains between device and reverberation according to phase difference
Distance.
7. (507), core processor (301) control signal generator sends the sawtooth signal of 50Hz and with 50kHz's
Sinusoidal signal is modulated.
8. (508), modulated sawtooth signal drives lasing light emitter (306) to send inswept a certain GAS ABSORPTION peak value ripple
The laser of long scope.The sine wave signal of embodiment 1 directly drives semiconductor laser with tunable；The sine wave of embodiment 2 is believed
Number after multi-channel data selector (123) selects corresponding gas passage, then corresponding tunable semiconductor laser need to be driven
Device, then through splicer (315), light path selector switch (316), laser is launched by corresponding collimater (317).
9. (509), laser runs into reverberation fraction of laser light and is reflected through the air of tested region, receiving lens (308)
The laser that collection is reflected is assembled to photodetector (310), and the laser signal for receiving is converted to electricity by photodetector
Signal.
10. (510), phaselocked loop amplifier (303) receives electric signal, and timesharing receives the modulation letter that signal generator is provided
Number and modulated signal frequency-doubled signal, Jing process extract timesharing obtain once, second harmonic signal.
11. (511), analog-digital converter (304) will once, second harmonic signal digitlization.
12. (512), core processor (301) is received once, the data of second harmonic signal, and process obtains institute's Jing light paths
On the concentration for surveying gas.
13. (513), core processor control converted gas monitoring repeats the gas concentration measurement mistake of (507) to (512)
Journey monitoring is until complete all gas concentration monitor.
14. (514), embodiment 1：Core processor (301) control head (307) drives lasing light emitter (306) and laser
Receiver rotates an angle；Embodiment 2：Core processor (301) control multi-channel data selector (121) selects lasing light emitter
(306) path, then corresponding lasing light emitter is driven, then through splicer (315), light path selector switch (316), by another angle
Collimater (317) launches laser.The process until complete for repeating (502) to (513) range finding and gas concentration monitoring owns
The monitoring of set angle.
15. (515), core processor process (301) institute angled upper acquisition distance and each gas concentration, obtain difference
Each gas concentration data of distance areas and three-dimensional spatial area
16. (516), core processor processes (301) and uploads data by communication interface (311), and by display screen
(312) display data.
Claims (10)
1. a kind of mine self caused fire monitoring early-warning system, it is characterised in that：System mainly includes gas concentration sensoring, temperature
Degree monitoring device, extinguishing device, netscape messaging server Netscape, warning device and communication network；Gas concentration sensoring is mainly wrapped
Include generating laser, laser pickoff, control process unit and display unit；Gas concentration sensoring adopts open air chamber,
Remote sensing monitoring can be carried out to multiple gases concentration in the environment of goaf；Gas concentration sensoring has laser ranging function；Letter
Breath processing server is responsible for processing gas concentration data and temperature data, and sound is sent by alarm unit according to data processed result
Light alarm, by communication network fire alarm information is sent, and is put out a fire by extinguishing device.
2. monitoring early-warning system as claimed in claim 1, it is characterised in that：The laser of the gas concentration sensoring of system is sent out
Emitter employing can automatically adjust the generating laser of the direction of the launch, and control process unit controls Laser emission to scan monitoring mode
The device direction of the launch, carries out different directions gas concentration and distance monitoring.
3. monitoring early-warning system as claimed in claim 1, it is characterised in that：The laser of the gas concentration sensoring of system is sent out
Emitter employing can automatically adjust the generating laser of the direction of the launch, and control process unit controls Laser emission to scan monitoring mode
The device direction of the launch, carries out different directions gas concentration and distance monitoring.
4. monitoring early-warning system as claimed in claim 1, it is characterised in that：The laser of the gas concentration sensoring of system is sent out
Emitter produces laser by lasing light emitter, and lasing light emitter can produce the laser for detecting multiple gases.
5. monitoring early-warning system as claimed in claim 1, it is characterised in that：The laser of the gas concentration sensoring of system is sent out
Emitter lasing light emitter adopts semiconductor laser with tunable；The controlled processing unit control of semiconductor laser with tunable, sends not
The laser of co-wavelength；Laser pickoff receives the laser for reflecting, and laser signal is converted to into electric signal, control process unit
Electric signal is processed, corresponding gas concentration is obtained.
6. monitoring early-warning system as claimed in claim 1, it is characterised in that：The laser of the gas concentration sensoring of system is sent out
Emitter can send CH4、CO、CO2、O2、C2H2And C2H4The laser of the different wave length of molecule absorption peak value.
7. monitoring early-warning system as claimed in claim 1, it is characterised in that：The equipment being arranged in system in explosion environment is equal
For explosion-proof type equipment.
8. monitoring early-warning system as claimed in claim 1, it is characterised in that：The device for detecting temperature of system includes Fibre Optical Sensor
Device, radio temperature sensor, thermal infrared imager, infrared thermoelectricity are released or infrared radiation thermometer.
9. monitoring early-warning system as claimed in claim 1, it is characterised in that：The extinguishing device of system includes grouting equipment.
10. monitoring early-warning system as claimed in claim 1, it is characterised in that：The extinguishing device of system sprays including inert gas
Jet device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621144864.1U CN206092070U (en) | 2016-10-21 | 2016-10-21 | Mine spontaneous fire monitoring and forewarning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621144864.1U CN206092070U (en) | 2016-10-21 | 2016-10-21 | Mine spontaneous fire monitoring and forewarning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206092070U true CN206092070U (en) | 2017-04-12 |
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ID=58484807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621144864.1U Active CN206092070U (en) | 2016-10-21 | 2016-10-21 | Mine spontaneous fire monitoring and forewarning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206092070U (en) |
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2016
- 2016-10-21 CN CN201621144864.1U patent/CN206092070U/en active Active
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