CN108071422B - Mine explosion monitoring system based on image monitoring equipment - Google Patents
Mine explosion monitoring system based on image monitoring equipment Download PDFInfo
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- CN108071422B CN108071422B CN201810154661.8A CN201810154661A CN108071422B CN 108071422 B CN108071422 B CN 108071422B CN 201810154661 A CN201810154661 A CN 201810154661A CN 108071422 B CN108071422 B CN 108071422B
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- 238000004880 explosion Methods 0.000 title claims abstract description 166
- 238000012544 monitoring process Methods 0.000 title claims abstract description 165
- 230000007613 environmental effect Effects 0.000 claims abstract description 52
- 230000002159 abnormal effect Effects 0.000 claims abstract description 30
- 230000001629 suppression Effects 0.000 claims abstract description 20
- 238000004891 communication Methods 0.000 claims description 48
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 26
- 238000003860 storage Methods 0.000 claims description 26
- 230000000007 visual effect Effects 0.000 claims description 16
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 14
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 14
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 13
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 13
- 239000001569 carbon dioxide Substances 0.000 claims description 13
- 238000005065 mining Methods 0.000 claims description 13
- 229910052760 oxygen Inorganic materials 0.000 claims description 13
- 239000001301 oxygen Substances 0.000 claims description 13
- 238000012806 monitoring device Methods 0.000 claims description 9
- 230000000630 rising effect 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 3
- 238000009826 distribution Methods 0.000 claims description 2
- 239000003245 coal Substances 0.000 abstract description 6
- 230000006870 function Effects 0.000 description 6
- 239000007789 gas Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002817 coal dust Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
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- 230000008733 trauma Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
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- 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
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
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Abstract
The invention discloses a mine explosion monitoring system based on image monitoring equipment, which collects video images and environmental data of an underground site by installing a camera and the environmental monitoring equipment underground, identifies characteristics such as brightness, area and environmental data change of an abnormal highlight area in a monitoring image, judges an explosion alarm by combining the working state of the equipment, and inhibits explosion and extinguishes fire. The explosion monitoring system fully considers the characteristic characteristics of mine explosion, is simple to implement, can quickly and accurately carry out automatic alarm and explosion suppression and fire extinguishment on the underground explosion of the coal mine, and strives for precious rescue and escape time for underground people in danger.
Description
Technical Field
The invention relates to a mine explosion monitoring system based on image monitoring equipment, which relates to the fields of digital image processing technology, sensor technology, communication technology and the like.
Background
Coal is the main energy source in China and accounts for about 70% of primary energy. The coal industry is a high-risk industry, accidents such as gas, flood, fire, roof, coal dust and the like disturb coal mine safety production, and the number of dead people in gas accidents accounts for 66.5 percent of the total number of dead people in the major accidents of coal mines in China. In the accidents such as gas explosion, coal dust explosion and the like, the death number of people is less than 20 percent due to trauma and burn, and the death number of people who are poisoned by carbon monoxide and suffocated is more than 80 percent. Therefore, the underground explosion disaster alarm can give an alarm in the first time, and the underground explosion disaster alarm is an important guarantee for timely carrying out emergency rescue and saving the lives of underground persons in danger. At present, a mine safety monitoring system mainly monitors gas concentration, wind speed, wind direction and the like, and has no automatic alarm function of explosion disasters; mine explosion accidents are found manually, and are not found and disposed in time, so that precious escape and rescue time is delayed, and a large amount of casualties are caused. Therefore, an automatic mine explosion alarm system is urgently needed, so that explosion accidents can be quickly and accurately found and an alarm can be given out automatically, and technical support is provided for timely disaster disposal and emergency aid.
Disclosure of Invention
The invention aims to provide a mine explosion monitoring system based on image monitoring equipment, which mainly comprises a storage server, a monitoring terminal, a mine Ethernet, at least one camera, at least one explosion monitoring alarm device, at least one environmental data monitoring device, at least one explosion suppression fire extinguishing device and at least one sound and light alarm device; the system comprises a camera, an explosion monitoring alarm device, an explosion suppression fire extinguishing device, an audible and visual alarm device and an environmental data monitoring device, wherein the camera, the explosion monitoring alarm device, the explosion suppression fire extinguishing device, the audible and visual alarm device and the environmental data monitoring device are arranged underground; the storage server is responsible for storing and forwarding video image data, environmental data monitoring data and explosion alarm data; the explosion monitoring and alarming equipment mainly comprises: the system comprises a host, a video acquisition module, a communication interface module and a network communication module; the explosion monitoring and alarming equipment is used for monitoring video image data, environment data and the working state of the camera, when the areas of highlight areas, the increasing speed of the areas of the highlight areas, the highest brightness of the highlight areas, the increasing speed of the highest brightness of the highlight areas, the distribution characteristics of the highlight areas, the abnormal change of the environment data and the abnormal working state of the camera in the video image are monitored to meet set conditions, an explosion alarming signal is sent out, meanwhile, the acousto-optic alarm and explosion suppression and fire extinguishing equipment are controlled to perform explosion suppression and fire extinguishing, and the explosion alarming signal is transmitted to the aboveground storage server and the monitoring terminal through the mining Ethernet; the monitoring terminal is responsible for outputting alarm information and obtains real-time and historical video image data and environmental data by accessing the storage server.
1. The explosion monitoring system further comprises: the monitoring process of the explosion monitoring and alarming equipment comprises the following steps:
a. when the gray value in the monitored image is greater than the set threshold value L 1 Number M of connected pixel points 1 Exceeds a set threshold value M A Entering a first-stage early warning state to send a first-stage early warning signal, and executing the step h;
b. when the monitored gray value in the image is larger than the set threshold value L 2 Number M of connected pixel points 2 Exceeds a set threshold value M B Entering a first-stage early warning state to send a first-stage early warning signal, and executing the step h; wherein L is 2 ＞L 1 ，M B ＜M A ；
c. When the camera is monitored to work abnormally, entering a camera fault alarm state, sending a camera fault alarm signal, and executing the step h;
d. when the monitored gray value in the image is larger than the set threshold value L 1 Number M of connected pixel points 1 Exceeds a set threshold value M C Then record the maximum gray value as L T And record M 1 Current value is M T Entering a second-stage early warning state and sending a second-stage early warning signal, and executing the stepsf and step g; wherein M is C Satisfies M C ＜M A ；
e. When the monitored gray value in the image is larger than the set threshold value L 3 Number M of connected pixel points 3 Exceeds a set threshold value M D And the gray scale value in the image is greater than L H The number M of connected pixels H Satisfy the requirements of
Greater than a set threshold value Z H And M is H All pixel points of (2) are located at M 3 In the middle of the region, the maximum gray value is recorded as L T And record M 3 Current value is M T Entering a secondary early warning state and sending a secondary early warning signal, and executing a step f and a step g, wherein L H ＞L 3 ，L 3 ＜L 1 ，M D ＜M B ；
f. After entering a secondary early warning state, setting time T 1 When the maximum gray value L is monitored max Rate of increase of
Exceeds a set threshold N 1 Entering a primary early warning state to send a primary early warning signal, and executing the step h;
g. after entering a secondary early warning state, setting time T 2 When the monitored gray value in the image is larger than the set threshold value L 1 Number M of connected pixel points 1 Rate of increase of
Exceeds a set threshold value N 2 Entering a first-stage early warning state to send a first-stage early warning signal, and executing the step h;
h. and monitoring the change of the environmental data while executing the steps, and sending an explosion alarm signal when the change of the environmental data is abnormal and the system enters a primary early warning state or a camera fault alarm state.
2. The explosion monitoring system further comprises: the environmental data monitoring equipment comprises a temperature sensor, a wind speed sensor, an air pressure sensor, an explosion sound sensor, a vibration sensor, an oxygen concentration sensor, a carbon monoxide concentration sensor, a carbon dioxide concentration sensor, an ultraviolet sensor and an infrared sensor.
3. The explosion monitoring system further comprises: the abnormal condition of the environmental data change comprises that the monitored temperature is higher than a set threshold value or the temperature rising speed exceeds the set threshold value.
4. The explosion monitoring system further comprises: the abnormal condition of the environmental data change comprises that when the monitored wind speed value exceeds a set threshold value, or the increase rate of the wind speed value exceeds the set threshold value, the current wind speed value is recorded, the change of the wind speed value is continuously monitored, and when the change of the wind speed value is monitored within a set time T F The falling rate of the internal wind speed value exceeds a set threshold value.
5. The explosion monitoring system further comprises: the abnormal condition of the environmental data change comprises that when the monitored air pressure value exceeds a set threshold value, or the increase rate of the air pressure value exceeds the set threshold value, the current air pressure value is recorded, the change of the air pressure value is continuously monitored, and when the monitored air pressure value exceeds the set time T Y The rate of decrease of the internal air pressure value exceeds a predetermined threshold.
6. The explosion monitoring system further comprises: the environmental data change abnormal condition comprises monitoring an explosion sound.
7. The explosion monitoring system further comprises: the abnormal condition of the environmental data change comprises that when the vibration amplitude value is monitored to exceed a set threshold value, or the growth rate of the vibration amplitude value exceeds the set threshold value, the current vibration amplitude value is recorded, the change of the vibration amplitude value is continuously monitored, and when the vibration amplitude value is monitored to be in a set time T Z The falling rate of the internal vibration amplitude value exceeds a set threshold value.
8. The explosion monitoring system further comprises: the abnormal condition of the environmental data change comprises that the monitored oxygen concentration value is lower than a set threshold value or the oxygen concentration reduction speed exceeds the set threshold value.
9. The explosion monitoring system further comprises: the abnormal condition of the environmental data change comprises that the carbon monoxide concentration value is monitored to be higher than a set threshold value or the carbon monoxide concentration rising speed exceeds the set threshold value.
10. The explosion monitoring system further comprises: the abnormal condition of the environmental data change comprises that the carbon dioxide concentration value is monitored to be higher than a set threshold value or the rising speed of the carbon dioxide concentration exceeds the set threshold value.
11. The explosion monitoring system further comprises: the abnormal condition of the environmental data change comprises monitoring an alarm of an ultraviolet sensor.
12. The explosion monitoring system further comprises: the abnormal condition of the environmental data change comprises monitoring an infrared sensor to alarm.
13. The explosion monitoring system further comprises: the camera mounting position comprises the top of an underground roadway, and the lens faces the direction of the working face along the roadway.
14. The explosion monitoring system further comprises: the camera includes a high speed camera.
Drawings
Fig. 1 is a schematic diagram of an embodiment of a mine explosion monitoring system based on an image monitoring device.
Fig. 2 is a schematic structural diagram of the explosion monitoring alarm device.
Fig. 3 is an exemplary diagram of an image monitoring alarm process.
Fig. 4 is a schematic view of an environmental data monitoring process.
Detailed Description
Fig. 1 is an implementation example of a mine explosion monitoring system based on an image monitoring device, which mainly comprises:
1. and the storage server (101) is responsible for storing and forwarding video image data provided by the camera (107) and data acquired by all the environmental data monitoring equipment, also comprises explosion alarm data provided by explosion monitoring alarm equipment (108), and provides data service for the monitoring terminal (102), the remote monitoring terminal (103) and the user mobile equipment (104).
2. The monitoring terminal (102) is responsible for providing underground environment monitoring data display service, provides real-time historical data and explosion alarm data by the storage server (101), and has an audible and visual alarm function; production management personnel can call and inquire the historical data stored in the storage server (101) through the monitoring terminal.
3. The remote monitoring terminal (103) is responsible for providing underground environment monitoring data display service, is accessed to the mining Ethernet through the Internet to access the storage server (101), provides real-time historical data and explosion alarm data by the storage server (101), and has an audible and visual alarm function; remote safety production supervisors can call and inquire the historical data stored in the storage server (101) through the remote monitoring terminal.
4. The user mobile equipment (104) is mobile intelligent equipment provided with a special monitoring application program, comprises a smart phone, a tablet personal computer and the like, is accessed to the mining Ethernet through the Internet to access the storage server (101), and provides real-time historical data and explosion alarm data through the storage server (101).
5. The core switch (105), the core management and switching equipment of the mining Ethernet, is responsible for the management and data exchange of all equipment accessed to the mining Ethernet, has a routing function, and is connected with the Internet.
6. The looped network switch (106) and the underground switching equipment of the mining Ethernet are arranged underground, and the looped network switches are connected in a looped network mode.
7. The camera (107) is installed in the roadway and is responsible for acquiring video images of areas which are easy to explode, such as the underground roadway and the working face; a camera with network output and analog video output functions is adopted, a network interface is directly connected with a ring network switch (106) to transmit digital video image data to a storage server (101), and an analog video output port is connected with an explosion monitoring alarm device (108).
8. The explosion monitoring alarm device (108) is responsible for monitoring video images collected by the camera (107) and data collected by all the environmental data monitoring devices, and when the data value or the data change meets the alarm condition, the explosion monitoring alarm device sends out explosion alarm data to the storage server (101); the explosion suppression and fire extinguishing device has wired and wireless communication functions and can be connected and communicated with environmental data monitoring equipment and explosion suppression and fire extinguishing equipment (117) in a wired or wireless communication mode, and in the example, the explosion monitoring and alarm equipment adopts an RS485 interface connected with the equipment in a wired connection mode; the explosion monitoring alarm equipment is also responsible for uploading the received environmental data to a storage server (101) through the mining Ethernet ring network; when explosion alarm is monitored, the audible and visual alarm (118) is controlled to perform audible and visual alarm, and the explosion suppression and fire extinguishing equipment (117) is controlled to perform explosion suppression and fire extinguishing.
9. And the temperature sensor (109) is responsible for acquiring field temperature data, can adopt a thermal diode temperature sensor and also can adopt an optical fiber temperature sensor, and is communicated with the explosion monitoring alarm device (108) through a wireless communication or wired communication interface.
10. The wind speed sensor (110) can adopt a mechanical wind speed sensor or an integrated ultrasonic wind speed and direction sensor, and the wind speed and the wind direction are obtained through the time difference of cross ultrasonic waves. The HS-FSSB01 integrated ultrasonic wind speed and direction sensor can be adopted to communicate with the explosion monitoring and alarming device (108) through a wireless communication or wired communication interface.
11. And the air pressure sensor (111) is used for monitoring roadway differential pressure and acquiring air pressure data, can adopt a coal mine negative pressure sensor, and is communicated with the explosion monitoring alarm device (108) through a wireless communication or wired communication interface.
12. The explosion sound sensor (112) is used for collecting monitoring sound data, can adopt a sound sensor mainly consisting of an LM393 and an electret microphone, can adjust the trigger sensitivity to monitor explosion sound, and sends out an explosion sound alarm signal when the explosion sound is monitored. And the explosion sound sensor is communicated with the explosion monitoring and alarming equipment (108) through a wireless communication or wired communication interface.
13. The vibration sensor (113) is responsible for collecting vibration signals, digitalizing the signals and transmitting the digitalized data to the explosion monitoring alarm device (108), and can adopt a BOSCH digital three-axis acceleration sensor BMA250 to communicate with the explosion monitoring alarm device (108) through a wireless communication or wired communication interface.
14. And the oxygen concentration sensor (114) is in charge of acquiring oxygen concentration data in the air, and is communicated with the explosion monitoring alarm equipment (108) through a wireless communication or wired communication interface by adopting a digital mining oxygen sensor.
15. And the carbon monoxide concentration sensor (115) is responsible for collecting carbon monoxide concentration data in the air, and is communicated with the explosion monitoring alarm equipment (108) through a wireless communication or wired communication interface by adopting a digital mining carbon monoxide sensor.
16. And the carbon dioxide concentration sensor (116) is responsible for collecting carbon dioxide concentration data in air, and is communicated with the explosion monitoring alarm equipment (108) through a wireless communication or wired communication interface by adopting a digital mining carbon dioxide sensor.
17. And the ultraviolet sensor (117) is responsible for monitoring ultraviolet rays, and when the ultraviolet rays are monitored to exceed a set threshold value, an alarm signal is sent out, and the ultraviolet sensor is communicated with the explosion monitoring alarm device (108) through a wireless communication or wired communication interface.
18. And the infrared sensor (118) is responsible for monitoring infrared rays, and when the monitored infrared rays exceed a set threshold value, an alarm signal is sent out to be communicated with the explosion monitoring alarm equipment (108) through a wireless communication or wired communication interface.
19. The explosion suppression fire extinguishing equipment (119) is used for suppressing explosion, preventing fire caused by explosion and reducing the influence range of explosion, can select and use inert gas injection equipment, rock powder injection equipment or sprinkling equipment according to the environment and material characteristics of an explosive area, is controlled by the explosion monitoring alarm equipment (108) to work, and is communicated with the explosion monitoring alarm equipment (108) through a wireless communication or wired communication interface.
20. And the audible and visual alarm (120) is used for giving an audible and visual alarm underground and is communicated with the explosion monitoring alarm device (108) through a wireless communication or wired communication interface.
As shown in fig. 2, the explosion monitoring alarm device mainly comprises: the device comprises a core processor, a graphic processor, a storage unit, a clock unit, a power supply unit, a USB interface unit, a video acquisition module, a wireless communication unit, a network interface unit and an SD card interface unit.
1. The core processor (201) adopts a Broadcom BCM2837 processor and an ARM Cortex-A53 architecture, and 64-bit quad 1.2GHz.
2. The graphics processor (202) is a Dual Core Videocore IV GPU processor.
3. The storage unit (203) adopts a 1GB LPDD2 memory.
4. And the clock unit (204) adopts a 19.2MHz crystal oscillator.
5. And the power supply unit (205) adopts an AC/DC module, inputs 100V-240 VAC and outputs 12VDC for supplying power to equipment.
And a USB interface unit (206) supporting 4 USB interfaces.
7. And the video acquisition module (207) converts the mode video signal into digital video data, inputs the digital video data into an analog video output port of the connecting camera (107), and transmits the digital video data to the core processor (201) through a USB port. And multi-channel video acquisition is supported.
8. And the communication module (208) is responsible for converting the RS485 communication interface into a USB communication interface, is connected with the environmental data monitoring equipment, the explosion suppression and fire extinguishing equipment (117) and the audible and visual alarm (118), and is used for acquiring environmental data, controlling explosion suppression and fire extinguishing and giving an audible and visual alarm.
9. And the wireless communication unit (209) supports an 802.11b/g/n protocol and is used for carrying out wireless communication with the environment data monitoring equipment supporting wireless communication.
10. And the network interface unit (210) is responsible for accessing the mining Ethernet and connecting the ring network switch (106).
And the SD card unit (211) is used for storing system files, library files, monitoring program files and the like, using a Linux system for management, internally setting an OpenCV (open content library) for video data processing, and adopting a Micro SD card not less than 4 GB.
An example of the image monitoring alarm process is shown in fig. 3, which includes:
1. (301) The gray value in the statistical image of the explosion monitoring alarm equipment is greater than a set threshold value L 1 Number M of connected pixel points 1 Such as M 1 ＞M A (M A To set a pixel number threshold), then execute (308), otherwise execute (302);
2. (302) The grey value in the statistical image of the explosion monitoring alarm equipment is greater than the set threshold value L 2 (L 2 ＞L 1 ) Number M of connected pixel points 2 Such as M 2 ＞M B (M B To set a pixel number threshold), then execute (308), otherwise execute (303);
3. (303) Explosion of the explosiveThe monitoring alarm equipment counts the grey value in the image to be greater than the set threshold value L 1 Number M of connected pixel points 1 Such as M 1 ＞M C (M C To set a threshold value for the number of pixels, M C ＜M A ) Then record the current maximum gray value as L T Record M 1 Current value is M T Executing (305), otherwise executing (304);
4. (304) The grey value in the statistical image of the explosion monitoring alarm equipment is greater than the set threshold value L 3 (L 3 ＜L 1 ) Number M of connected pixel points 3 And the sum gray value is greater than the set threshold value L H (L H ＞L 3 ) Number M of connected pixel points H If satisfy
Find M 3 X and y coordinate values in all pixel points are minimum and maximum x max 、x min 、y max 、y min Looking up M H X and y coordinate values in all pixel points are minimum and maximum x Hmax 、x Hmin 、y Hmax 、y Hmin If satisfy x max ＞x Hmax And x min ＜x Hmin And y is max ＞y Hmax And y is min ＜y Hmin Then record the maximum gray value as L T And record M 3 Current value is M T Executing (305), otherwise executing (311);
5. (305) The explosion monitoring and alarming equipment enters a secondary early warning state and sends a secondary early warning signal to a storage server (101), a monitoring terminal (102), a remote monitoring terminal (103) and user mobile equipment (104);
6. (306) The time T after the explosion monitoring alarm device monitors that the explosion monitoring alarm device enters a secondary early warning state 1 Inner, maximum gray value L max Rate of increase of
Exceeds a set threshold value N 1 If so, executing (308), otherwise, executing (307);
7. (307) When explosion is monitored and reportedThe time T after the alarm device monitors entering the second-stage early warning state 2 When the condition is monitored within the set time, the gray value in the image is larger than the set threshold value L 1 Number M of connected pixel points 1 Rate of increase of
Exceeds a set threshold value N 2 Then executing (308), otherwise executing (311);
8. (308) The explosion monitoring and alarming equipment enters a primary early warning state and sends a primary early warning signal to a storage server (101), a monitoring terminal (102), a remote monitoring terminal (103) and user mobile equipment (104);
9. (309) The explosion monitoring and alarming equipment simultaneously monitors the change of the environmental data, if the change of the environmental data is monitored to be abnormal, the operation is executed (310), and if the change of the environmental data is not abnormal, the operation is returned (301);
10. (310) The explosion monitoring and alarming equipment sends out an explosion alarm to the storage server (101), the monitoring terminal (102), the remote monitoring terminal (103) and the user mobile equipment (104), and simultaneously controls the audible and visual alarm (120) to give an audible and visual alarm and controls the explosion suppression and fire extinguishing equipment (119) to suppress explosion and extinguish fire;
11. (311) The explosion monitoring alarm device monitors the working state of the image acquisition device, if the image acquisition device is monitored to be incapable of communicating, the operation is executed (312), and if not, the operation returns (301);
12. (312) And the explosion monitoring alarm equipment enters an image acquisition equipment fault alarm state, sends an image acquisition equipment fault alarm signal to the storage server (101), the monitoring terminal (102), the remote monitoring terminal (103) and the user mobile equipment (104), and executes (309).
Fig. 4 is a schematic view of an environmental data monitoring process, which is performed simultaneously with image monitoring.
1. (401) The explosion monitoring alarm equipment collects temperature data uploaded by a temperature sensor (109) through a communication substation, if the monitored temperature is higher than a set threshold value or the temperature rising speed exceeds the set threshold value, the operation is executed (411), otherwise, the operation is executed (402);
2. (402) The explosion monitoring alarm device collects wind speed sensing through a communication substationThe wind speed data uploaded by the device (110) is monitored to determine whether the wind speed value exceeds a set threshold value or not, the change of the wind speed value is monitored at regular time, when the wind speed value exceeds the set threshold value or the increase rate of the wind speed value exceeds the set threshold value, the current wind speed value is recorded for polling the change rate of the monitored wind speed value, and when the wind speed value is monitored to be within a set time T in polling F If the falling rate of the internal wind speed value exceeds a set threshold value, executing (411), otherwise executing (403);
3. (403) The explosion monitoring alarm equipment collects air pressure data uploaded by an air pressure sensor (111) through a communication substation, monitors whether an air pressure value exceeds a set threshold value or not, monitors the change of the air pressure value at regular time, records the current air pressure value for polling the change rate of the monitored air pressure value when the monitored air pressure value exceeds the set threshold value or the increase rate of the air pressure value exceeds the set threshold value, and polls the change rate of the monitored air pressure value when the monitored air pressure value exceeds the set time T Y If the internal air pressure value reduction rate exceeds a set threshold value, executing (411), otherwise executing (404);
4. (404) The explosion monitoring alarm device collects data of an explosion sound sensor (112) through a communication substation, if an explosion sound alarm signal is received, the operation is executed (411), otherwise, the operation is executed (405);
5. (405) The explosion monitoring and alarming equipment acquires vibration data uploaded by a vibration sensor (113) through a communication substation, monitors whether the vibration amplitude exceeds a set threshold value or not, monitors the change of the vibration amplitude at regular time, records the current vibration amplitude value for polling and monitoring the change rate of the vibration amplitude value when the vibration amplitude exceeding the set threshold value or the vibration amplitude increase rate exceeding the set threshold value is monitored, and monitors the change rate of the vibration amplitude value at set time T in polling Z If the falling rate of the internal vibration amplitude value exceeds a set threshold value, executing (411), otherwise executing (406);
6. (406) The explosion monitoring alarm device collects oxygen concentration data uploaded by an oxygen concentration sensor (114) through a communication substation, if the monitored oxygen concentration is lower than a set threshold or the oxygen concentration reduction speed exceeds the set threshold, the explosion monitoring alarm device executes (411), otherwise, the explosion monitoring alarm device executes (407);
7. (407) The explosion monitoring alarm equipment acquires carbon monoxide concentration data uploaded by a carbon monoxide concentration sensor (115) through a communication substation, and if the carbon monoxide concentration is higher than a set threshold value or the rising speed of the carbon monoxide concentration exceeds the set threshold value, the explosion monitoring alarm equipment is executed (411), otherwise, the explosion monitoring alarm equipment is executed (408);
8. (408) The explosion monitoring alarm equipment acquires carbon dioxide concentration data uploaded by a carbon dioxide concentration sensor (116) through a communication substation, and if the monitored carbon dioxide concentration is higher than a set threshold or the rising speed of the carbon dioxide concentration exceeds the set threshold, the explosion monitoring alarm equipment is executed (411), otherwise, the explosion monitoring alarm equipment is executed (409);
9. (409) The explosion monitoring alarm device collects data uploaded by an ultraviolet sensor (117) through a communication substation, if an alarm signal of the ultraviolet sensor is received, the operation is executed (411), otherwise, the operation is executed (410);
10. (410) The explosion monitoring alarm equipment acquires data uploaded by an infrared sensor (117) through a communication substation, executes (411) when receiving an alarm signal of the infrared sensor, and returns (401) if not;
11. (411) Carrying out environmental data change abnormity marking;
12. (412) The explosion monitoring alarm equipment simultaneously monitors image data, if the environmental data change abnormal mark and the state of entering the primary early warning or the image acquisition equipment fault alarm exist simultaneously, the operation is executed (413), otherwise, the operation returns (401);
13. (413) The explosion monitoring and alarming equipment sends out explosion alarm to the storage server (101), the monitoring terminal (102), the remote monitoring terminal (103) and the user mobile equipment (104), and the explosion monitoring and alarming equipment simultaneously controls the audible and visual alarm (120) to give out audible and visual alarm and controls the explosion suppression and fire extinguishing equipment (119) to suppress explosion and extinguish fire.
Claims (14)
1. Mine explosion monitored control system based on image monitoring equipment, its characterized in that: the system mainly comprises a storage server, a monitoring terminal, a mining Ethernet, at least one camera, at least one explosion monitoring alarm device, at least one environmental data monitoring device, at least one explosion suppression fire extinguishing device and at least one sound and light alarm device; the system comprises a camera, an explosion monitoring alarm device, an explosion suppression fire extinguishing device, an audible and visual alarm device and an environmental data monitoring device, wherein the camera, the explosion monitoring alarm device, the explosion suppression fire extinguishing device, the audible and visual alarm device and the environmental data monitoring device are arranged underground; the storage server is responsible for storing and forwarding video image data, environmental data monitoring data and explosion alarm data; the explosion monitoring alarm device mainly comprises: the system comprises a host, a video acquisition module, a communication interface module and a network communication module; the explosion monitoring and alarming equipment is used for monitoring video image data, environment data and the working state of the camera, when the area of a highlight area, the increasing speed of the area of the highlight area, the highest brightness of the highlight area, the increasing speed of the highest brightness of the highlight area, the distribution characteristics of the highlight area, the abnormal change of the environment data and the abnormal working state of the camera in the video image are monitored to meet set conditions, an explosion alarming signal is sent out, meanwhile, the acousto-optic alarm and explosion suppression and fire extinguishing equipment are controlled to carry out explosion suppression and fire extinguishing, and the explosion alarming signal is transmitted to the aboveground storage server and the monitoring terminal through the mining Ethernet; the monitoring terminal is responsible for outputting alarm information and acquires real-time and historical video image data and environmental data by accessing the storage server;
the monitoring process of the explosion monitoring and alarming equipment comprises the following steps:
a. when the gray value in the monitored image is greater than the set threshold value L 1 Number M of connected pixel points 1 Exceeds a set threshold value M A Entering a primary early warning state to send a primary early warning signal, and executing the step h;
b. when the monitored gray value in the image is larger than the set threshold value L 2 Number M of connected pixel points 2 Exceeds a set threshold value M B Entering a first-stage early warning state to send a first-stage early warning signal, and executing the step h; wherein L is 2 ＞L 1 ，M B ＜M A ；
c. When the camera is monitored to work abnormally, entering a camera fault alarm state, sending a camera fault alarm signal, and executing the step h;
d. when the monitored gray value in the image is larger than the set threshold value L 1 Number M of connected pixel points 1 Exceeds a set threshold value M C Then record the maximum gray value as L T And record M 1 Current value is M T Entering a secondary early warning state, sending a secondary early warning signal, and executing the step f and the step g;wherein M is C Satisfies M C ＜M A ；
e. When the gray value in the monitored image is greater than the set threshold value L 3 Number M of connected pixel points 3 Exceeds a set threshold value M D And the gray scale value in the image is greater than L H The number M of connected pixels H Satisfy the requirement of
Greater than a set threshold value Z H And M is H All pixel points of (2) are located at M 3 In the middle of the region, the maximum gray value is recorded as L T And record M 3 Current value is M T Entering a secondary early warning state and sending a secondary early warning signal, and executing a step f and a step g, wherein L H ＞L 3 ，L 3 ＜L 1 ，M D ＜M B ；
f. After entering a secondary early warning state, setting time T 1 When the maximum gray value L is monitored max Rate of increase of
Exceeds a set threshold value N 1 Entering a first-stage early warning state to send a first-stage early warning signal, and executing the step h;
g. after entering a secondary early warning state, setting time T 2 When the gray value in the monitored image is greater than the set threshold value L 1 Number M of connected pixel points 1 Rate of increase of
Exceeds a set threshold value N 2 Entering a first-stage early warning state to send a first-stage early warning signal, and executing the step h;
h. and monitoring the change of the environmental data while executing the steps, and sending an explosion alarm signal when the change of the environmental data is abnormal and the system enters a primary early warning state or a camera fault alarm state.
2. The explosion monitoring system of claim 1, wherein: the environmental data monitoring equipment comprises a temperature sensor, a wind speed sensor, an air pressure sensor, an explosion sound sensor, a vibration sensor, an oxygen concentration sensor, a carbon monoxide concentration sensor, a carbon dioxide concentration sensor, an ultraviolet sensor and an infrared sensor.
3. The explosion monitoring system of claim 1, wherein: the abnormal condition of the environmental data change comprises that the monitored temperature is higher than a set threshold value or the temperature rising speed exceeds the set threshold value.
4. The explosion monitoring system of claim 1, wherein: the abnormal condition of the environmental data change comprises that when the monitored wind speed value exceeds a set threshold value, or the growth rate of the wind speed value exceeds the set threshold value, the current wind speed value is recorded, the change of the wind speed value is continuously monitored, and when the change of the wind speed value is monitored for a set time T F The falling rate of the internal wind speed value exceeds a set threshold value.
5. The explosion monitoring system of claim 1, wherein: the abnormal condition of the environmental data change comprises that when the monitored air pressure value exceeds a set threshold value, or the air pressure value growth rate exceeds the set threshold value, the current air pressure value is recorded, the change of the air pressure value is continuously monitored, and when the monitored air pressure value exceeds the set time T Y The rate of decrease of the internal air pressure value exceeds a predetermined threshold.
6. The explosion monitoring system of claim 1, wherein: the environmental data change abnormal condition comprises monitoring an explosion sound.
7. The explosion monitoring system of claim 1, wherein: the abnormal condition of the environmental data change comprises that when the vibration amplitude value is monitored to exceed a set threshold value, or the increase rate of the vibration amplitude value exceeds the set threshold value, the current vibration amplitude value is recorded, the change of the vibration amplitude value is continuously monitored, and when the change is monitored within a set time T Z Rate of decrease in internal vibration amplitudeExceeding a set threshold.
8. The explosion monitoring system of claim 1, wherein: the abnormal condition of the environmental data change comprises that the monitored oxygen concentration value is lower than a set threshold value or the oxygen concentration reduction speed exceeds the set threshold value.
9. The explosion monitoring system of claim 1, wherein: the abnormal condition of the environmental data change comprises that the carbon monoxide concentration value is monitored to be higher than a set threshold value or the carbon monoxide concentration rising speed exceeds the set threshold value.
10. The explosion monitoring system as defined in claim 1, wherein: the abnormal condition of the environmental data change comprises that the carbon dioxide concentration value is monitored to be higher than a set threshold value or the rising speed of the carbon dioxide concentration exceeds the set threshold value.
11. The explosion monitoring system as defined in claim 1, wherein: the abnormal condition of the environmental data change comprises monitoring an alarm of an ultraviolet sensor.
12. The explosion monitoring system of claim 1, wherein: the abnormal condition of the environmental data change comprises monitoring an infrared sensor to alarm.
13. The explosion monitoring system of claim 1, wherein: the camera mounting position comprises the top of an underground roadway, and the lens faces the direction of the working face along the roadway.
14. The explosion monitoring system of claim 1, wherein: the camera includes a high speed camera.
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