CN108131166A - Mine explosion monitor and alarm system based on image - Google Patents
Mine explosion monitor and alarm system based on image Download PDFInfo
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- CN108131166A CN108131166A CN201810154655.2A CN201810154655A CN108131166A CN 108131166 A CN108131166 A CN 108131166A CN 201810154655 A CN201810154655 A CN 201810154655A CN 108131166 A CN108131166 A CN 108131166A
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- 238000004880 explosion Methods 0.000 title claims abstract description 98
- 238000012544 monitoring process Methods 0.000 claims abstract description 84
- 230000007613 environmental effect Effects 0.000 claims abstract description 41
- 230000005856 abnormality Effects 0.000 claims description 25
- 239000007789 gas Substances 0.000 claims description 16
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 13
- 229910052760 oxygen Inorganic materials 0.000 claims description 13
- 239000001301 oxygen Substances 0.000 claims description 13
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 10
- 230000010355 oscillation Effects 0.000 claims description 9
- GNFTZDOKVXKIBK-UHFFFAOYSA-N 3-(2-methoxyethoxy)benzohydrazide Chemical compound COCCOC1=CC=CC(C(=O)NN)=C1 GNFTZDOKVXKIBK-UHFFFAOYSA-N 0.000 claims description 4
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 4
- 239000001569 carbon dioxide Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 2
- 238000009826 distribution Methods 0.000 claims description 2
- 239000003245 coal Substances 0.000 abstract description 5
- 230000009429 distress Effects 0.000 abstract description 2
- 230000002159 abnormal effect Effects 0.000 abstract 1
- 238000005070 sampling Methods 0.000 abstract 1
- 238000004891 communication Methods 0.000 description 59
- 238000005065 mining Methods 0.000 description 9
- 229960004424 carbon dioxide Drugs 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000737 periodic effect Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 229910002090 carbon oxide Inorganic materials 0.000 description 2
- 239000002817 coal dust Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010003497 Asphyxia Diseases 0.000 description 1
- 238000006424 Flood reaction Methods 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- RJMUSRYZPJIFPJ-UHFFFAOYSA-N niclosamide Chemical compound OC1=CC=C(Cl)C=C1C(=O)NC1=CC=C([N+]([O-])=O)C=C1Cl RJMUSRYZPJIFPJ-UHFFFAOYSA-N 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
-
- 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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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Emergency Alarm Devices (AREA)
- Alarm Systems (AREA)
Abstract
The invention discloses a kind of mine explosion monitor and alarm systems based on image, the explosion monitor and alarm system in underground by installing high-speed image sampling equipment and enviromental monitoring equipment, acquire image scene and environmental data under mine, by feature recognitions such as highlight regions brightness value abnormal in monitoring image, area, environmental data variations, and bonding apparatus working condition differentiates progress explosion alarming.The explosion monitor and alarm system has fully considered the characteristic feature of mine explosion, implements simply, can rapidly and accurately explode to underground coal mine and carry out automatic alarm, strive for valuable rescue and escape time for underground distress personnel.
Description
Technical field
The present invention relates to a kind of mine explosion monitor and alarm system based on image, which is related to Digital Image Processing skill
The fields such as art, sensor technology and the communication technology.
Background technology
Coal is China's main energy sources, accounts for about primary energy 70%.Coal industry is high risk industries, gas, floods, fire
The accidents such as calamity, top plate, coal dust annoying Safety of Coal Mine Production, and gas accident death toll accounts for always in China's coal-mine severe and great casualty
The 66.5% of death toll.The accidents such as gas explosion and coal-dust explosion, since wound and burn cause personnel death's number insufficient
20%, anthracemia death by suffocation number is up to more than 80%.Well shooting disaster is reported therefore, it is possible to first time
It is alert, it is the timely important leverage for carrying out emergency management and rescue, saving underground distress personnel life.At present, mining safety monitoring monitoring system
The main monitoring gas density of system, wind speed, wind direction etc., no explosion disaster auto-alarm function；Mine explosion accident manually finds,
It was found that and disposition not in time, delayed valuable escape and rescue time, caused a tremendous loss of lives.Therefore, it is quick-fried to be badly in need of mine
Fried automatic alarm method, quick, accurate automatic discovery explosion accident are simultaneously alarmed, are carried to carry out disaster disposition in time with emergency management and rescue
For technical guarantee.
Invention content
Present invention aims at a kind of mine explosion monitor and alarm system based on image is provided, at least one is installed in mine
A image capture device and at least one monitoring environmental data equipment；System monitoring image data and environmental data, according to image
Highlight regions area, highlight regions area growth rate, highlight regions maximum brightness, highlight regions maximum brightness increase in data
Speed, highlight regions distribution characteristics, environmental data, image capture device working condition send out explosion alarming；Monitoring process includes：
A. when monitoring in image that gray value is more than given threshold L1Connected pixel point number M1More than given threshold
MA, then level-one pre-warning signal is sent out into level-one alert status, is performed simultaneously step h；
B. when monitoring in image that gray value is more than given threshold L2Connected pixel point number M2More than given threshold
MB, then level-one pre-warning signal is sent out into level-one alert status, is performed simultaneously step h；Wherein L2＞ L1, MB＜ MA；
C. when monitoring image capture device operation irregularity, then into image capture device fault-alarming state and figure is sent out
As collecting device failure alarm signal, it is performed simultaneously step h；
D. when monitoring in image that gray value is more than given threshold L1Connected pixel point number M1More than given threshold
MC, then maximum gradation value is recorded as LT, and record M1Current value is MT, and enter two level alert status and send out two level early warning letter
Number, perform step f and step g；Wherein MCMeet MC＜ MA；
E. when monitoring in image that gray value is more than given threshold L3Connected pixel point number M3More than given threshold
MD, and gray value is more than L in imageHConnected pixel count out MHMeetMore than given threshold ZH, and MHAll pixels
Point is located at M3In the middle part of region, then maximum gradation value is recorded as LT, and record M3Current value is MT, and enter two level alert status and
Two level pre-warning signal is sent out, performs step f and step g, wherein LH＞ L3, L3＜ L1, MD＜ MB；
F. after entering two level alert status, in setting time T1It is interior, when monitoring maximum gradation value LmaxGrowth rateMore than given threshold N1, then level-one pre-warning signal is sent out into level-one alert status, is performed simultaneously step h；
G. after entering two level alert status, in setting time T2It is interior, when monitoring in image that gray value is more than given threshold L1
Connected pixel point number M1Growth rateMore than given threshold N2, then level-one is sent out into level-one alert status
Pre-warning signal is performed simultaneously step h；
H. monitoring of environmental data variation while each step more than performing, when monitoring environmental data variation abnormality, and
System enters level-one alert status or image capture device fault-alarming state, then sends out explosion alarming signal.
1. the explosion monitor and alarm system further comprises：The monitoring environmental data equipment include temperature sensor,
Air velocity transducer, baroceptor, explosion sound sensor, vibrating sensor, oxygen concentration sensor, carbonomonoxide concentration sensing
Device, gas concentration lwevel sensor, UV sensor, infrared ray sensor.
2. the explosion monitor and alarm system further comprises：Environmental data variation abnormality condition includes described in step h, prison
It is more than given threshold that temperature, which is measured, higher than given threshold or temperature ramp-up rate.
3. the explosion monitor and alarm system further comprises：Environmental data variation abnormality condition includes described in step h, when
Monitor that air speed value more than given threshold, then records current air speed value, and continue to supervise more than given threshold or air speed value growth rate
Air speed value variation is surveyed, when monitoring in setting time TFInterior air speed value rate of descent is more than given threshold.
4. the explosion monitor and alarm system further comprises：Environmental data variation abnormality condition includes described in step h, when
Monitor that atmospheric pressure value more than given threshold, then records current gas pressure value, and continue to supervise more than given threshold or atmospheric pressure value growth rate
Atmospheric pressure value variation is surveyed, when monitoring in setting time TYInterior atmospheric pressure value rate of descent is more than given threshold.
5. the explosion monitor and alarm system further comprises：Environmental data variation abnormality condition described in step h includes prison
Measure explosion sound.
6. the explosion monitor and alarm system further comprises：Environmental data variation abnormality condition includes described in step h, when
Monitor that Oscillation Amplitude value more than given threshold, then records current vibration width more than given threshold or Oscillation Amplitude value growth rate
Angle value, and continue the variation of monitoring vibration range value, when monitoring in setting time TZInternal vibration range value rate of descent is more than setting
Threshold value.
7. the explosion monitor and alarm system further comprises：Environmental data variation abnormality condition includes described in step h, prison
It is more than given threshold to measure oxygen density value and reduce speed less than given threshold or oxygen concentration.
8. the explosion monitor and alarm system further comprises：Environmental data variation abnormality condition includes described in step h, prison
It is more than given threshold that carbonomonoxide concentration value, which is measured, higher than given threshold or carbonomonoxide concentration ramp-up rate.
9. the explosion monitor and alarm system further comprises：Environmental data variation abnormality condition includes described in step h, prison
It is more than given threshold that carbon dioxide concentration value, which is measured, higher than given threshold or gas concentration lwevel ramp-up rate.
10. the explosion monitor and alarm system further comprises：Environmental data variation abnormality condition described in step h includes prison
Measure UV sensor alarm.
11. the explosion monitor and alarm system further comprises：Environmental data variation abnormality condition described in step h includes prison
Measure infrared ray sensor alarm.
12. the explosion monitor and alarm system further comprises：The video image of system monitoring multiple images collecting device
Data, the installation site according to where being monitored to the image capture device of pre-warning signal earliest determine quick-fried source position.
13. the explosion monitor and alarm system further comprises：Image capture device installation site includes underworkings top
Portion, camera lens is along tunnel towards working face direction.
14. the explosion monitor and alarm system further comprises：Described image collecting device includes high-speed camera.
Description of the drawings
Mine explosion monitor and alarm system embodiment schematic diagrames of the Fig. 1 based on image.
Fig. 2 image monitoring alarm flow exemplary plots.
Fig. 3 monitoring environmental data flow diagrams.
Specific embodiment
Fig. 1 is the implementation example of the mine explosion monitor and alarm system based on image, and main composition includes：
1. explosion alarming server (101), it is responsible for video image and all environment numbers that monitoring is acquired by video camera (107)
According to the data that monitoring device acquires, and storage forwarding is carried out to data, when data value or data variation meet alert if, then to
Monitor terminal (102), remote monitoring terminal (103) and user move equipment (104) and send out explosion alarming data.Connecting mine leads to
Communication network.
2. monitor terminal (102) is responsible for providing the display service of subsurface environment monitoring data, by explosion alarming server
(101) real-time, historical data and explosion alarming data are provided, there is sound and light of alarm；Production management personnel can pass through monitoring
The historical data of terminal-pair explosion alarming server (101) storage transfers inquiry.It connects core switch (105) and accesses mining lead to
Communication network.
3. remote monitoring terminal (103) is responsible for providing the display service of subsurface environment monitoring data, passes through linking Internet ore deposit
With communication network access explosion alarming server (101), by explosion alarming server (101) provide in real time, historical data and quick-fried
Fried alert data, has sound and light of alarm；Telesecurity production supervision personnel can be by remote monitoring terminal to explosion alarming
The historical data of server (101) storage transfers inquiry.
4. user moves equipment (104), refer to the intelligent movable equipment for being mounted with special monitoring application program, including intelligent hand
Machine, tablet computer etc. by the mining communication network access explosion alarming server (101) of linking Internet, are taken by explosion alarming
Business device (101) provides real-time, historical data and explosion alarming data.
5. it is mining logical to be responsible for all accesses for core switch (105), the hard core control and switching equipment of mining communication network
The management of the equipment of communication network and data exchange have routing function, connect internet.
6. ring exchanger (106), the underground switching equipment of mining communication network, mounted on underground, multiple looped networks exchange
Machine is connected in a manner of looped network.
7. video camera (107), i.e. image capture device, are installed in tunnel, it is responsible for acquisition underworkings and working face etc.
The video image in region easily to explode；Using the video camera with network output function.
8. communication sub-station (108) is responsible for receiving the data of monitoring environmental data equipment acquisition, and by data by it is mining with
Too looped network is uploaded to explosion alarming server (101), has wired and wireless communication function.
9. temperature sensor (109) is responsible for collection site temperature data, thermal diode temperature sensor can be used,
Fibre optic temperature sensor can be used, module or wired communication interface communicate with communication sub-station (108) by radio communication, this example
It is middle to use communication.
10. air velocity transducer (110), can be used mechanical air velocity transducer, Integral ultrasonic wind speed and wind can also be used
To sensor, wind speed and wind direction are obtained by the time difference for intersecting ultrasonic wave.HS-FSSB01 Integral ultrasonic wind speed can be used
Wind transducer, by radio communication module or wired communication interface communicate with communication sub-station (108), using wireless in this example
Communication mode.
11. for monitoring tunnel differential pressure acquisition air pressure data, coal mine negative pressure can be used in baroceptor (111)
Sensor, by radio communication module or wired communication interface communicate with communication sub-station (108), in this example using wireless communication
Mode.
12. explode sound sensor (112), voice data is monitored for acquiring, can be used and mainly talked about by LM393 and electret
Trigger sensitivity is adjusted to monitor explosion sound in the sound transducer of cylinder composition, when monitoring explosion sound, sends out explosion sound report
Alert signal.Module or wired communication interface communicate explosion sound sensor with communication sub-station (108) by radio communication, in this example
Using communication.
13. vibrating sensor (113) is responsible for acquisition vibration signal, and signal is digitized, then will digitize obtained number
According to communication sub-station (108) is transmitted to, the digital 3-axis acceleration sensor BMA250 of BOSCH can be used, by radio communication mould
Block communicates with communication sub-station (108).
14. oxygen concentration sensor (114) is responsible for oxygen concentration data in acquisition air, using digital mining oxygen
Sensor, by radio communication module or wired communication interface communicate with communication sub-station (108), in this example using wireless communication
Mode.
15. carbonomonoxide concentration sensor (115), is responsible for acquisition CO in Air concentration data, use is digital
Mining carbon monoxide transducer, by radio communication module or wired communication interface communicate with communication sub-station (108), in this example
Using communication.
16. gas concentration lwevel sensor (116), is responsible for acquisition the carbon dioxide concentration in air data, use is digital
Mine carbon dioxide sensor, by radio communication module or wired communication interface communicate with communication sub-station (108), in this example
Using communication.
17. UV sensor (117), it is responsible for monitoring ultraviolet light, when monitoring that ultraviolet light sends out report more than given threshold
Signal is warned, module or wired communication interface communicate with communication sub-station (108) by radio communication, using wireless communication in this example
Mode.
18. infrared ray sensor (118), it is responsible for monitoring infrared ray, when monitoring that infrared ray sends out report more than given threshold
Signal is warned, module or wired communication interface communicate with communication sub-station (108) by radio communication, using wireless communication in this example
Mode.
Image monitoring alarm flow example as shown in Fig. 2, including：
1. (201) gray value is more than given threshold L in explosion alarming server statistics image1Connected pixel point number
M1, such as M1＞ MA(MATo set number of pixels threshold value), then (208) are performed, otherwise perform (202)；
2. (202) gray value is more than given threshold L in explosion alarming server statistics image2(L2＞ L1) connected pixel
The number M of point2, such as M2＞ MB(MBTo set number of pixels threshold value), then (208) are performed, otherwise perform (203)；
3. (203) gray value is more than given threshold L in explosion alarming server statistics image1Connected pixel point number
M1, such as M1＞ MC(MCTo set number of pixels threshold value, MC＜ MA), then current maximum gradation value is recorded as LT, record M1Current value is
MT, perform (205), otherwise perform (204)；
4. (204) gray value is more than given threshold L in explosion alarming server statistics image3(L3＜ L1) connected pixel
The number M of point3And gray value is more than given threshold LH(LH＞ L3) connected pixel point number MH, such as meetIt looks into
Look for M3All pixels point in x and y coordinates value minimum and maximum value xmax、xmin、ymax、ymin, search MHAll pixels point in x
With y-coordinate value minimum and maximum value xHmax、xHmin、yHmax、yHmin, such as meet xmax＞ xHmaxAnd xmin＜ xHminAnd ymax＞Hmaxy
And ymin＜ yHmin, then maximum gradation value is recorded as LT, and record M3Current value is MT, perform (205), otherwise perform (211)；
5. (205) explosion alarming server enters two level alert status, and to monitor terminal (102), remote monitoring terminal
(103) and user moves equipment (104) and sends out two level pre-warning signal；
6. (206) time T after explosion alarming monitoring server is into two level alert status1It is interior, maximum gradation value
LmaxGrowth rateMore than given threshold N1, then (208) are performed, otherwise perform (207)；
7. (207) time T after explosion alarming monitoring server is into two level alert status2It is interior to monitor setting
In fixing time, gray value is more than given threshold L in image1Connected pixel point number M1Growth rateMore than setting
Determine threshold value N2, then (208) are performed, otherwise perform (211)；
8. (208) explosion alarming server enters level-one alert status, and to monitor terminal (102), remote monitoring terminal
(103) and user moves equipment (104) and sends out level-one pre-warning signal；
9. (209) explosion alarming server while monitoring of environmental data variation, when monitoring environmental data variation abnormality, then
It performs (210), otherwise returns to (201)；
10. (210) explosion alarming server moves equipment to monitor terminal (102), remote monitoring terminal (103) and user
(104) explosion alarming is sent out；
11. (211) explosion alarming monitoring server image capture device working condition, when monitor image capture device without
Method communicates, then performs (212), otherwise returns to (201)；
12. (212) explosion alarming server enters image capture device fault-alarming state, and to monitor terminal (102),
Remote monitoring terminal (103) and user move equipment (104) and send out image capture device failure alarm signal, and perform (209).
In the above examples, the image that the explosion alarming server (101) uploads video camera (107) is handled.
Embedded device realization can be used in more than monitoring process.
Fig. 3 is monitoring environmental data flow diagram, this monitoring process is run simultaneously with image monitoring.
1. (301) temperature data that explosion alarming server is uploaded by communication sub-station collecting temperature sensor (109), when
Monitor that temperature more than given threshold, then performs (311), otherwise perform (302) higher than given threshold or temperature ramp-up rate；
2. (302) explosion alarming server acquires the air speed data of air velocity transducer (110) upload, prison by communication sub-station
Survey air speed value whether be more than given threshold, and periodic monitor air speed value change, when monitor air speed value be more than given threshold or wind
Speed value growth rate is more than given threshold, then records current air speed value and monitor air speed value change rate for poll, when being supervised in poll
It measures in setting time TFInterior air speed value rate of descent is more than given threshold, then performs (311), otherwise performs (303)；
3. (303) explosion alarming server acquires the barometric information of baroceptor (111) upload, prison by communication sub-station
Survey atmospheric pressure value whether be more than given threshold, and periodic monitor atmospheric pressure value change, when monitor atmospheric pressure value be more than given threshold or gas
Pressure value growth rate is more than given threshold, then records current gas pressure value and monitor atmospheric pressure value change rate for poll, when being supervised in poll
It measures in setting time TYInterior atmospheric pressure value rate of descent is more than given threshold, then performs (311), otherwise performs (304)；
4. (304) explosion alarming server acquires the data of explosion sound sensor (112) by communication sub-station, when receiving
Explosion sound alarm signal, then perform (311), otherwise performs (305)；
5. (305) explosion alarming server acquires the vibration data of vibrating sensor (113) upload, prison by communication sub-station
Survey Oscillation Amplitude whether be more than given threshold, and periodic monitor Oscillation Amplitude change, when monitor Oscillation Amplitude be more than setting threshold
Value or Oscillation Amplitude growth rate are more than given threshold, then record current vibration range value and become for poll monitoring vibration range value
Rate, when being monitored in poll in setting time TZInternal vibration range value rate of descent is more than given threshold, then performs (311),
Otherwise (306) are performed；
6. (306) explosion alarming server is dense by the oxygen that communication sub-station acquisition oxygen concentration sensor (114) uploads
Degrees of data is more than given threshold when monitoring that oxygen concentration reduces speed less than given threshold or oxygen concentration, then performs
(311), (307) otherwise are performed；
7. (307) explosion alarming server acquires the one of carbonomonoxide concentration sensor (115) upload by communication sub-station
Carbonoxide concentration data is more than setting when monitoring carbonomonoxide concentration higher than given threshold or carbonomonoxide concentration ramp-up rate
Threshold value then performs (311), otherwise performs (308)；
8. (308) explosion alarming server acquires the two of gas concentration lwevel sensor (116) upload by communication sub-station
Carbonoxide concentration data is more than setting when monitoring gas concentration lwevel higher than given threshold or gas concentration lwevel ramp-up rate
Threshold value then performs (311), otherwise performs (309)；
9. (309) explosion alarming server acquires the data that UV sensor (117) uploads by communication sub-station, when connecing
UV sensor alarm signal is received, then performs (311), otherwise performs (310)；
10. (310) explosion alarming server acquires the data of infrared ray sensor (117) upload by communication sub-station, when
Infrared ray sensor alarm signal is received, then performs (311), otherwise returns to (301)；
11. (311) carry out environmental data variation abnormality label；
12. (312) explosion alarming server while monitoring image data, when environmental data variation abnormality is marked with entering one
Grade early warning or image capture device fault-alarming state exist simultaneously, then perform (313), otherwise return to (301)；
13. (313) explosion alarming server moves equipment to monitor terminal (102), remote monitoring terminal (103) and user
(104) explosion alarming is sent out.
Claims (15)
1. the mine explosion monitor and alarm system based on image, it is characterised in that：At least one Image Acquisition is installed in mine to set
Standby and at least one monitoring environmental data equipment；System monitoring image data and environmental data, according to highlight bar in image data
Domain area, highlight regions area growth rate, highlight regions maximum brightness, highlight regions maximum brightness growth rate, highlight bar
Domain distribution characteristics, environmental data, image capture device working condition send out explosion alarming；Monitoring process includes：
A. when monitoring in image that gray value is more than given threshold L1Connected pixel point number M1More than given threshold MA, then
Level-one pre-warning signal is sent out into level-one alert status, is performed simultaneously step h；
B. when monitoring in image that gray value is more than given threshold L2Connected pixel point number M2More than given threshold MB, then
Level-one pre-warning signal is sent out into level-one alert status, is performed simultaneously step h；Wherein L2＞ L1, MB＜ MA；
C. it when monitoring image capture device operation irregularity, then into image capture device fault-alarming state and sends out image and adopts
Collect device failure alert signal, be performed simultaneously step h；
D. when monitoring in image that gray value is more than given threshold L1Connected pixel point number M1More than given threshold MC, then
Record maximum gradation value is LT, and record M1Current value is MT, and enter two level alert status and send out two level pre-warning signal, it holds
Row step f and step g；Wherein MCMeet MC＜ MA；
E. when monitoring in image that gray value is more than given threshold L3Connected pixel point number M3More than given threshold MD, and
Gray value is more than L in imageHConnected pixel count out MHMeetMore than given threshold ZH, and MHAll pixels point be located at
M3In the middle part of region, then maximum gradation value is recorded as LT, and record M3Current value is MT, and enter two level alert status and send out two
Grade pre-warning signal, performs step f and step g, wherein LH＞ L3, L3＜ L1, MD＜ MB；
F. after entering two level alert status, in setting time T1It is interior, when monitoring maximum gradation value LmaxGrowth rate
More than given threshold N1, then level-one pre-warning signal is sent out into level-one alert status, is performed simultaneously step h；
G. after entering two level alert status, in setting time T2It is interior, when monitoring in image that gray value is more than given threshold L1Company
The number M of logical pixel1Growth rateMore than given threshold N2, then level-one early warning is sent out into level-one alert status
Signal is performed simultaneously step h；
H. monitoring of environmental data variation while each step more than performing, when monitoring environmental data variation abnormality, and system
Into level-one alert status or image capture device fault-alarming state, then explosion alarming signal is sent out.
2. explosion monitor and alarm system as described in claim 1, it is characterised in that：The monitoring environmental data equipment includes temperature
Sensor, air velocity transducer, baroceptor, explosion sound sensor, vibrating sensor, oxygen concentration sensor, carbon monoxide
Concentration sensor, gas concentration lwevel sensor, UV sensor, infrared ray sensor.
3. explosion monitor and alarm system as described in claim 1, it is characterised in that：Environmental data variation abnormality item described in step h
Part includes, and monitors temperature higher than given threshold or temperature ramp-up rate more than given threshold.
4. explosion monitor and alarm system as described in claim 1, it is characterised in that：Environmental data variation abnormality item described in step h
Part includes, and is more than given threshold when monitoring air speed value more than given threshold or air speed value growth rate, then records current wind speed
Value, and continue to monitor air speed value variation, when monitoring in setting time TFInterior air speed value rate of descent is more than given threshold.
5. explosion monitor and alarm system as described in claim 1, it is characterised in that：Environmental data variation abnormality item described in step h
Part includes, and is more than given threshold when monitoring atmospheric pressure value more than given threshold or atmospheric pressure value growth rate, then records current gas pressure
Value, and continue to monitor atmospheric pressure value variation, when monitoring in setting time TYInterior atmospheric pressure value rate of descent is more than given threshold.
6. explosion monitor and alarm system as described in claim 1, it is characterised in that：Environmental data variation abnormality item described in step h
Part includes monitoring explosion sound.
7. explosion monitor and alarm system as described in claim 1, it is characterised in that：Environmental data variation abnormality item described in step h
Part includes, and is more than given threshold when monitoring Oscillation Amplitude value more than given threshold or Oscillation Amplitude value growth rate, then record is worked as
Preceding Oscillation Amplitude value, and continue the variation of monitoring vibration range value, when monitoring in setting time TZInternal vibration range value rate of descent
More than given threshold.
8. explosion monitor and alarm system as described in claim 1, it is characterised in that：Environmental data variation abnormality item described in step h
Part includes, and it is more than given threshold to monitor that oxygen density value reduces speed less than given threshold or oxygen concentration.
9. explosion monitor and alarm system as described in claim 1, it is characterised in that：Environmental data variation abnormality item described in step h
Part includes, and monitors carbonomonoxide concentration value higher than given threshold or carbonomonoxide concentration ramp-up rate more than given threshold.
10. explosion monitor and alarm system as described in claim 1, it is characterised in that：Environmental data variation abnormality item described in step h
Part includes, and monitors carbon dioxide concentration value higher than given threshold or gas concentration lwevel ramp-up rate more than given threshold.
11. explosion monitor and alarm system as described in claim 1, it is characterised in that：Environmental data variation abnormality item described in step h
Part includes monitoring that UV sensor is alarmed.
12. explosion monitor and alarm system as described in claim 1, it is characterised in that：Environmental data variation abnormality item described in step h
Part includes monitoring that infrared ray sensor is alarmed.
13. explosion monitor and alarm system as described in claim 1, it is characterised in that：System monitoring multiple images collecting device
Vedio data, the installation site according to where being monitored to the image capture device of pre-warning signal earliest determine quick-fried source position.
14. explosion monitor and alarm system as described in claim 1, it is characterised in that：Image capture device installation site includes well
At the top of lower tunnel, camera lens is along tunnel towards working face direction.
15. explosion monitor and alarm system as described in claim 1, it is characterised in that：Described image collecting device includes taking the photograph at a high speed
Camera.
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