CN108071423B - Mine explosion monitoring system based on infrared image monitoring equipment - Google Patents
Mine explosion monitoring system based on infrared image monitoring equipment Download PDFInfo
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 168
- 238000004880 explosion Methods 0.000 title claims abstract description 153
- 230000007613 environmental effect Effects 0.000 claims abstract description 63
- 230000002159 abnormal effect Effects 0.000 claims abstract description 32
- 230000001629 suppression Effects 0.000 claims abstract description 20
- 238000004891 communication Methods 0.000 claims description 34
- 238000003860 storage Methods 0.000 claims description 28
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 26
- 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 8
- 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
- 230000009429 distress Effects 0.000 abstract 1
- 230000000007 visual effect Effects 0.000 description 10
- 230000006870 function Effects 0.000 description 6
- 239000002360 explosive Substances 0.000 description 5
- 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
- 238000001931 thermography Methods 0.000 description 2
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- 239000013078 crystal Substances 0.000 description 1
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- 239000011261 inert gas Substances 0.000 description 1
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- 230000035945 sensitivity 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 infrared image monitoring equipment, which collects on-site infrared video images and environmental data of a mine by installing an infrared camera and the environmental monitoring equipment underground, performs explosion alarm by identifying characteristics such as abnormal highlight area, environmental data change and the like in a monitoring video image and combining with the judgment of the working state of the equipment, and simultaneously suppresses 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 distress personnel.
Description
Technical Field
The invention relates to a mine explosion monitoring system based on infrared 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 device can give an alarm for the underground explosion disaster at the first time, and 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 handled in time, so that precious escape and rescue time is delayed, and a large amount of personnel 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 infrared image monitoring equipment, which mainly comprises a storage server, a monitoring terminal, a mine Ethernet, at least one infrared 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; wherein, the infrared camera, the explosion monitoring alarm device, the explosion suppression fire extinguishing device, the sound and light alarm device and the environmental data monitoring device are arranged underground, and the storage server and the monitoring terminal are arranged on the underground; the storage server is responsible for storing and forwarding the infrared video image data, the environment data and the 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 alarm equipment is used for monitoring the working states of the infrared video image data, the environmental data, the infrared camera and the environmental data monitoring equipment, when the areas of high-temperature areas, the increasing speed of the areas of the high-temperature areas, the highest temperature of the high-temperature areas, the temperature distribution characteristics of the high-temperature areas, the change speed of the highest temperature of the high-temperature areas, the abnormal change of the environmental data, the abnormal work of the infrared camera and the abnormal work of the environmental data monitoring equipment in the infrared video image are monitored to meet set conditions, an explosion alarm signal is sent out, meanwhile, the sound and light alarm and the explosion suppression and fire extinguishing equipment are controlled to perform explosion suppression and fire extinguishing, and the explosion alarm 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 obtaining real-time and historical infrared video images 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 infrared video image is monitored to exceed the set temperature threshold C 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 i;
b. when the monitored infrared video image exceeds a set temperature threshold value C 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 i; wherein C is 2 Satisfy C 2 ＞C 1 ，M B Satisfy M B ＜M A ；
c. When the infrared camera is monitored to work abnormally, entering an infrared camera fault alarm state, sending an infrared camera fault alarm signal, and executing the step h;
d. when the monitored infrared video image exceeds a set temperature threshold value C 1 Number M of connected pixel points 1 Exceeds a set threshold value M C Then record the current highest temperature C M 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 monitored infrared video image exceeds a set temperature threshold value C 3 Number M of connected pixel points 3 Exceeds a set threshold value M D And exceeds a set temperature threshold C H Number of connected pixels M H Satisfy the requirement of
And M H All the pixel points are positioned in the middle of the high-temperature area, and then the current highest temperature C is recorded M 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 C H Satisfies C H ＞C 3 ，C 3 Satisfies C 3 ＜C 1 ，M D Satisfies M D ＜M B ，Z H Setting a threshold value;
f. after entering a secondary early warning state, setting time T 1 When the highest temperature C is monitored Max Rate of increase of
Exceeds a set threshold value N 1 If yes, entering a primary early warning state to send a primary early warning signal, and executing the step i;
g. after entering a secondary early warning state, setting time T 2 When the monitored infrared video image exceeds the set temperature threshold C 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 i;
h. monitoring the change of 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 fault alarm state of the infrared camera;
i. and monitoring the change of the environmental data while executing the steps, and sending an explosion alarm signal when the environmental data change is abnormal or the work of the environmental data monitoring equipment is abnormal and the system enters a primary early warning state.
1. The explosion monitoring alarm 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 and an ultraviolet sensor.
2. The explosion monitoring alarm 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.
3. The explosion monitoring alarm 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.
4. The explosion monitoring alarm 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 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 set threshold.
5. The explosion monitoring alarm system further comprises: the environmental data change abnormal condition comprises monitoring an explosion sound.
6. The explosion monitoring alarm 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 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 of the vibration amplitude value is monitored to be in the setTiming T Z The falling rate of the internal vibration amplitude value exceeds a set threshold value.
7. The explosion monitoring alarm 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.
8. The explosion monitoring alarm 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.
9. The explosion monitoring alarm 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.
10. The explosion monitoring alarm system further comprises: the abnormal condition of the environmental data change comprises monitoring an alarm of an ultraviolet sensor.
11. The explosion monitoring alarm system further comprises: the infrared camera mounting position includes underworkings top, and the camera lens is towards the working face direction along the tunnel.
Drawings
Fig. 1 is a schematic diagram of an embodiment of a mine explosion monitoring system based on an infrared image monitoring device.
Fig. 2 is a schematic structural diagram of the explosion monitoring and alarming device.
Fig. 3 is an exemplary diagram of an infrared 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 infrared image monitoring device, which mainly comprises:
1. and the storage server (101) is responsible for storing and forwarding video image data provided by the infrared 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 acousto-optic 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 a sound-light 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 and 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 switching of all equipment accessed into 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 infrared 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, a working face and the like, wherein the images can be gray images and also can be pseudo-color images; the infrared thermal imaging camera with network output and analog video output functions is adopted, a network interface is directly connected with a ring network switch (106), digital video image data are transmitted 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 infrared 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 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 fire extinguishing equipment (117) is controlled to perform explosion suppression fire extinguishing.
9. The wind speed sensor (109) 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.
10. And the air pressure sensor (110) is used for monitoring roadway differential pressure and acquiring air pressure data, and can adopt a coal mine negative pressure sensor to communicate with the explosion monitoring alarm device (108) through a wireless communication or wired communication interface.
11. The explosion sound sensor (111) is used for collecting monitoring sound data, can adopt a sound sensor mainly comprising an LM393 and an electret microphone, can adjust trigger sensitivity to monitor explosion sound, and sends out an explosion sound alarm signal when monitoring the explosion sound. And the explosion sound sensor is communicated with the explosion monitoring and alarming device (108) through a wireless communication or wired communication interface.
12. The vibration sensor (112) is responsible for collecting vibration signals, digitalizing the signals and transmitting the digitalized data to the explosion monitoring alarm equipment (108), and can adopt a BOSCH digital triaxial acceleration sensor BMA250 to communicate with the explosion monitoring alarm equipment (108) through a wireless communication or wired communication interface.
13. And the oxygen concentration sensor (113) is responsible for acquiring oxygen concentration data in air, and is communicated with the explosion monitoring alarm device (108) through a wireless communication or wired communication interface by adopting a digital mining oxygen sensor.
14. And the carbon monoxide concentration sensor (114) is responsible for collecting carbon monoxide concentration data in the air, adopts a digital mining carbon monoxide sensor and is communicated with the explosion monitoring alarm equipment (108) through a wireless communication or wired communication interface.
15. And the carbon dioxide concentration sensor (115) 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.
16. And the ultraviolet sensor (116) 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 to be communicated with the explosion monitoring alarm device (108) through a wireless communication or wired communication interface.
17. The explosion suppression fire extinguishing equipment (117) 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.
18. And the audible and visual alarm (118) 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 and alarming 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. The power supply unit (205) adopts an AC/DC module, inputs 100V-240 VAC, outputs 12VDC and is used 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 connected with the infrared 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 the 802.11b/g/n protocol and is used for carrying out wireless communication with the environment data monitoring equipment supporting the 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.
Fig. 3 shows an example of an infrared image monitoring alarm process of an explosion monitoring alarm device, which includes:
1. (301) Explosive monitoring alarm equipment counts and exceeds set temperature threshold C in infrared image 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) Explosive monitoring alarm equipment counts and exceeds set temperature threshold C in infrared image 2 (C 2 ＞C 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) Explosive monitoring alarm equipment counts and exceeds set temperature threshold C in infrared image 1 Number of connected pixel pointsM 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 highest temperature C M Record M of 1 Current value is M T Executing (305), otherwise executing (304);
4. (304) Explosive monitoring alarm equipment counts and exceeds set temperature threshold C in infrared image 3 (C 3 ＜C 1 ) Number M of connected pixel points 3 And exceeds a set temperature threshold C H (C H ＞C 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 of all pixel points of (1) are minimum and maximum values of 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 current highest temperature C M 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, highest temperature C Max Rate of increase of
Exceeds a set threshold N 1 If so, executing (308), otherwise, executing (307);
7. (307) When the explosion monitoring and alarming equipment monitors the time T after entering the second-stage early warning state 2 When the monitoring is within the set time, exceedingSetting a temperature threshold C 1 Number M of connected pixel points 1 Rate of increase of
Exceeds a set threshold N 2 If so, 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 alarm equipment simultaneously monitors the environmental data change and the working state of the environmental data monitoring equipment, if the environmental data change is monitored to be abnormal or the environmental data monitoring equipment works to be abnormal, the operation is executed (310), otherwise, the operation is returned (301);
10. (310) The explosion monitoring and alarming equipment sends out an explosion alarming signal to the storage server (101), the monitoring terminal (102), the remote monitoring terminal (103) and the user mobile equipment (104); the explosion monitoring alarm device simultaneously controls the audible and visual alarm (118) to perform audible and visual alarm and controls the explosion suppression fire extinguishing device (117) to perform explosion suppression and fire extinguishing;
11. (311) Monitoring the working state of the infrared image acquisition equipment by the explosion monitoring alarm equipment, executing (312) when monitoring that the infrared image acquisition equipment cannot communicate, and otherwise, returning to (301);
12. (312) The explosion monitoring alarm equipment enters a fault alarm state of the infrared image acquisition equipment and sends a fault alarm signal of the infrared image acquisition equipment to the storage server (101), the monitoring terminal (102), the remote monitoring terminal (103) and the user mobile equipment (104);
13. (313) And the explosion monitoring and alarming equipment simultaneously monitors the change of the environmental data, executes (310) when monitoring that the change of the environmental data is abnormal, and returns (301) otherwise.
In the above example, the infrared image may be a gray scale image or a pseudo color image, and since there is a corresponding relationship between the brightness and the color of the thermal imaging image and the temperature, all temperature values in the above monitoring flow may be processed by replacing the corresponding brightness and color values.
Fig. 4 is a schematic view of an environmental data monitoring process, which is performed simultaneously with image monitoring.
1. (401) The explosion monitoring and alarming equipment collects wind speed data uploaded by a wind speed sensor (109), monitors whether a wind speed value exceeds a set threshold value or not, monitors the change of the wind speed value at regular time, records the current wind speed value for polling the change rate of the monitored wind speed value when the monitored wind speed value exceeds the set threshold value or the growth rate of the wind speed value exceeds the set threshold value, and polls the change rate of the monitored wind speed value at a set time T when the current wind speed value is monitored in polling F If the falling rate of the internal wind speed value exceeds a set threshold value, executing (409), otherwise executing (402);
2. (402) The explosion monitoring alarm equipment collects air pressure data uploaded by an air pressure sensor (110), 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 at a set time T when the current air pressure value is monitored in polling Y If the internal air pressure value decrease rate exceeds a set threshold value, executing (409), otherwise executing (403);
3. (403) The explosion monitoring and alarming equipment collects data of an explosion sound sensor (111), and executes the data (409) when receiving an explosion sound alarming signal, otherwise executes the data (404);
4. (404) The explosion monitoring and alarming equipment collects vibration data uploaded by a vibration sensor (112), 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 exceeds the set threshold value or the increase rate of the vibration amplitude exceeds the set threshold value, and monitors the change rate of the vibration amplitude value at set time T in polling Z If the drop rate of the internal vibration amplitude value exceeds a set threshold value, executing (409), otherwise executing (405);
5. (405) The explosion monitoring and alarming equipment acquires oxygen concentration data uploaded by an oxygen concentration sensor (113), and executes (409) when the monitored oxygen concentration is lower than a set threshold or the reduction speed of the oxygen concentration exceeds the set threshold, otherwise executes (406);
6. (406) The explosion monitoring and alarming equipment collects carbon monoxide concentration data uploaded by a carbon monoxide concentration sensor (114), 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 and alarming equipment executes (409), otherwise, the explosion monitoring and alarming equipment executes (407);
7. (407) The explosion monitoring and alarming equipment acquires carbon dioxide concentration data uploaded by a carbon dioxide concentration sensor (115), and if the 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 and alarming equipment executes (409), otherwise, the explosion monitoring and alarming equipment executes (408);
8. (408) The explosion monitoring alarm equipment collects data uploaded by an ultraviolet sensor (116), and if an alarm signal of the ultraviolet sensor is received, the operation is executed (409), otherwise, the operation is returned (401);
9. (409) Carrying out environmental data change abnormity marking;
10. (410) The explosion monitoring alarm equipment simultaneously monitors image data, if the environmental data change abnormal mark and the state of entering the first-stage early warning or infrared camera fault alarm exist simultaneously, the operation is executed (411), otherwise, the operation returns (401);
14. (411) The explosion monitoring and alarming equipment sends out an explosion alarming signal to the storage server (101), the monitoring terminal (102), the remote monitoring terminal (103) and the user mobile equipment (104); the explosion monitoring and alarming device controls the audible and visual alarm (118) to perform audible and visual alarm and controls the explosion suppression and fire extinguishing device (117) to perform explosion suppression and fire extinguishing.
Claims (12)
1. Mine explosion monitored control system based on infrared image monitoring facilities, its characterized in that: the system mainly comprises a storage server, a monitoring terminal, a mining Ethernet, at least one infrared 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; wherein, the infrared camera, the explosion monitoring alarm device, the explosion suppression fire extinguishing device, the sound and light alarm device and the environmental data monitoring device are arranged underground, and the storage server and the monitoring terminal are arranged on the underground; the storage server is responsible for storing and forwarding the infrared video image data, the environment data and the 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 device is used for monitoring the working states of the infrared video image data, the environmental data, the infrared camera and the environmental data monitoring device, when the area of a high-temperature area, the increasing speed of the area of the high-temperature area, the highest temperature of the high-temperature area, the temperature distribution characteristic of the high-temperature area, the change speed of the highest temperature of the high-temperature area, the change abnormity of the environmental data, the working abnormity of the infrared camera and the working abnormity of the environmental data monitoring device in the infrared video image are monitored to meet set conditions, an explosion alarming signal is sent out, meanwhile, the explosion suppression and fire extinguishment device is subjected to sound-light alarming and controlled to carry out explosion suppression and fire extinguishment, and the explosion alarming signal is transmitted to an aboveground storage server and a monitoring terminal through a mining Ethernet; the monitoring terminal is responsible for outputting alarm information and acquiring real-time and historical infrared video images 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 monitored infrared video image exceeds a set temperature threshold value C 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 i;
b. when the monitored infrared video image exceeds a set temperature threshold value C 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 i; wherein C is 2 Satisfy C 2 ＞C 1 ，M B Satisfies M B ＜M A ；
c. When the infrared camera is monitored to work abnormally, entering an infrared camera fault alarm state, sending an infrared camera fault alarm signal, and executing the step h;
d. when the infrared video image is monitored to exceed the set temperature threshold C 1 Number M of connected pixel points 1 Exceeds a set threshold value M C Then record the current highest temperature C M Record M of 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 infrared video image exceeds a set temperature threshold value C 3 Number M of connected pixel points 3 Exceeds a set threshold value M D And exceeds a set temperature threshold C H Number of connected pixels M H Satisfy the requirement of
And M is H All pixel points are positioned in the middle of the high-temperature area, and then the current highest temperature C is recorded M 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 C H Satisfies C H ＞C 3 ，C 3 Satisfies C 3 ＜C 1 ，M D Satisfy M D ＜M B ，Z H Setting a threshold value;
f. after entering a secondary early warning state, setting time T 1 When the highest temperature C is monitored Max Rate of increase of
Exceeds a set threshold value N 1 Entering a first-level early warning state to send a first-level early warning signal, and executing the step i;
g. after entering a secondary early warning state, setting time T 2 When the monitored infrared video image exceeds the set temperature threshold C 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 i;
h. monitoring the change of 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 an infrared camera fault alarm state;
i. and monitoring the change of the environmental data while executing the steps, and sending an explosion alarm signal when the environmental data change is abnormal or the work of the environmental data monitoring equipment is abnormal and the system enters a primary early warning 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 and an ultraviolet sensor.
3. The explosion monitoring system as defined in 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 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 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 set 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 said explosion monitoring system is a single-use system: 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 The falling rate of the internal vibration amplitude value exceeds a set threshold value.
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 of 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 of 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 infrared camera mounting position includes underworkings top, and the camera lens is towards the working face direction along the tunnel.
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| CN112525354A (en) * | 2020-12-16 | 2021-03-19 | 苏州中科先进技术研究院有限公司 | Storage state judgment system and judgment method based on infrared thermal imaging |
| CN113720990A (en) * | 2021-08-17 | 2021-11-30 | 重庆工程职业技术学院 | Gas extraction pipeline gas leakage explosion simulation system and device |
| CN113847097A (en) * | 2021-10-14 | 2021-12-28 | 北京天创万安科技装备有限公司 | Fire early warning method and system for underground mining and computer storage medium |
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