CN110706446A - Fire-fighting alarm method and system - Google Patents
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- 238000001931 thermography Methods 0.000 claims abstract description 72
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- 239000000779 smoke Substances 0.000 claims description 15
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- 238000003709 image segmentation Methods 0.000 claims description 5
- 238000004590 computer program Methods 0.000 claims description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 8
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 4
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 4
- 239000001569 carbon dioxide Substances 0.000 description 4
- 229910002091 carbon monoxide Inorganic materials 0.000 description 4
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 description 4
- 230000006399 behavior Effects 0.000 description 2
- 238000004422 calculation algorithm Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/0014—Radiation pyrometry, e.g. infrared or optical thermometry for sensing the radiation from gases, flames
- G01J5/0018—Flames, plasma or welding
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
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- G01—MEASURING; TESTING
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- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
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- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/0044—Sulphides, e.g. H2S
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/12—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions
- G08B17/125—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions by using a video camera to detect fire or smoke
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
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Abstract
The invention relates to the field of fire alarm, in particular to a fire alarm method and a fire alarm system, wherein the fire alarm method comprises the following steps: receiving an alarm signal; acquiring a thermal imaging image according to the alarm signal; analyzing the thermal imaging image; judging the fire degree according to the analysis result; and sending out alarm information to the fire degree. The method and the system can accurately judge the fire disaster situation and carry out rapid alarm.
Description
Technical Field
The invention relates to the field of fire alarm, in particular to a fire alarm method and a fire alarm system.
Background
Among the various disasters, fire is one of the most frequent and common major disasters threatening public safety and social development. People need to escape safely and quickly in case of fire. Therefore, more and more fire fighting devices are installed indoors to warn or extinguish fire.
Most of the alarm devices commonly used in the prior art are smoke detectors, temperature detectors, flame detectors and gas detectors, and the detectors have the following problems: for example, smoke detectors are sensitive to smoke and often trigger an alarm because the smoker is smoking, or smoke is small at the beginning of a fire and often is not detected, and when the detector detects that the fire has been set off, the fire is not extinguished in time, and unnecessary loss is caused.
In order to solve the problems, the invention provides a fire-fighting alarm method and a fire-fighting alarm system.
Disclosure of Invention
The invention provides a fire-fighting alarm method and a fire-fighting alarm system. The fire-fighting alarm method and the fire-fighting alarm system can accurately judge the fire condition and carry out quick alarm.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
a fire alarm method, comprising:
receiving an alarm signal;
acquiring a thermal imaging image according to the alarm signal;
analyzing the thermal imaging image;
judging the fire degree according to the analysis result;
and sending out alarm information to the fire degree.
Preferably, the alarm signal is obtained by a monitoring module, and the monitoring module includes: smoke detectors, temperature detectors, flame detectors, and gas detectors. The gas detector can monitor carbon dioxide, carbon monoxide, sulfide, nitride and chloride gas smoke. The purpose of using multiple detectors is to monitor the fire at multiple angles and ensure that the fire is found in the shortest time.
Preferably, the thermal imaging image is acquired by a thermal imaging camera, and the thermal imaging camera is automatically turned on within a certain time to acquire the thermal imaging image. The camera can be automatically started for monitoring in a certain time, so that the aim is that if the existing trend of fire exists, but various detectors cannot reach the triggering condition due to the fact that the situation of the fire is not large, the situation is not monitored, and the time for finding the fire can be greatly shortened through the timing scanning of the camera.
Preferably, the method for analyzing the thermal imaging image comprises:
segmenting the thermographic image;
analyzing the temperature distribution of the segmented thermal imaging image;
and judging the fire degree according to the temperature distribution proportion of the image. The temperature distribution is an example of a shot image, and the high temperature region is judged to judge the area of fire and the size of the fire.
Preferably, the temperature distribution is calculated by the following formula:
wherein, X is an image segmentation area;
is the temperature of the image area or areas,
the temperature of the edge region; alpha is each pixel point set; β is the set connecting adjacent node edges. In the algorithm, the analysis of the image comprises the analysis of the whole area and the edge area of the image, so that the analysis result is greatly accurate.
Preferably, the judging the fire degree according to the temperature distribution ratio of the image specifically includes: and judging the temperature proportion according to the temperature situation proportion of the divided regions to the total image region, and further judging the fire degree.
Preferably, the alarm information sent out to the fire degree is that the alarm information is sent to a terminal, and the alarm information comprises a thermal imaging image and the fire degree.
A fire alarm system comprising:
a monitoring module: the monitoring module is used for receiving an alarm signal;
a thermal imaging image acquisition module: the thermal imaging image acquisition module is used for acquiring a thermal imaging image according to the alarm signal;
an image analysis module: the image analysis module is used for analyzing the thermal imaging image;
a judging module: the judging module is used for judging the fire degree according to the analysis result;
an alarm module: the alarm module is used for sending out alarm information to the fire degree.
Preferably, the monitoring module comprises: smoke detectors, temperature detectors, flame detectors, and gas detectors. The gas detector can monitor carbon dioxide, carbon monoxide, sulfide, nitride and chloride gas smoke.
Preferably, the thermal imaging image acquisition module is used for acquiring a thermal imaging image according to the alarm signal; acquiring a thermal imaging image according to the alarm signal; the thermal imaging image is obtained through a thermal imaging camera, and the thermal imaging camera is automatically started within a certain time to obtain the thermal imaging image.
Preferably, the image analysis module is used for analyzing the thermal imaging image; the method for analyzing the thermal imaging image comprises the following steps: segmenting the thermographic image; analyzing the temperature distribution of the segmented thermal imaging image; and judging the fire degree according to the temperature distribution proportion of the image. The temperature distribution is calculated by the following formula:
wherein, X is an image segmentation area;is the temperature of the image area or areas,
temperature of the edge region(ii) a Alpha is each pixel point set; β is the set connecting adjacent node edges.
Preferably, the judging module is used for judging the fire degree according to the analysis result; and judging the temperature proportion according to the temperature situation proportion of the divided regions to the total image region, and further judging the fire degree.
A computer readable storage medium having stored thereon computer program instructions adapted to be loaded by a processor and to execute the method of fire alarm.
A mobile terminal comprises a processor and a memory, wherein the processor is used for executing a program stored in the memory so as to realize a fire-fighting alarm method.
Compared with the prior art, the invention has the beneficial effects that: compared with the prior art, the fire determination by the smoke alarm is often not perfect, for example, the smoke of a cigarette may cause an automatic alarm. The method can overcome the defect that the fire condition is judged only by various sensors, the fire is judged from the temperature perspective by a thermal imaging technology, the temperature distribution condition is analyzed by an algorithm, when the high temperature distribution is too wide, the fire condition is proved to be serious, the fire condition is alarmed, the alarm information is more accurate, and meanwhile, the fire behavior of the fire can be determined by calculation, and powerful help is provided for rescue under judgment. The timing opening of the camera is set for monitoring, so that the time for finding the fire can be greatly shortened.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic flow chart of a fire alarm method according to the present invention;
fig. 2 is a block diagram of a fire alarm system according to the present invention.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate only the basic flow diagram of the invention, and therefore they show only the flow associated with the invention.
As shown in fig. 1, the invention is a fire-fighting alarm method, which specifically comprises the following steps:
s1, receiving an alarm signal;
s2, acquiring a thermal imaging image according to the alarm signal;
s3, analyzing the thermal imaging image;
s4, judging the fire degree according to the analysis result;
and S5, sending alarm information to the fire degree.
Step S1: receiving an alarm signal; the alarm signal obtain through monitoring module, monitoring module include: smoke detectors, temperature detectors, flame detectors, and gas detectors. The gas detector can monitor carbon dioxide, carbon monoxide, sulfide, nitride and chloride gas smoke. When any one of the detectors has an alarm condition, an alarm signal is sent out.
Step S2: acquiring a thermal imaging image according to the alarm signal; the thermal imaging image is obtained through a thermal imaging camera, and the thermal imaging camera is automatically started within a certain time to obtain the thermal imaging image. And after receiving the alarm signal, the thermal imaging camera is automatically started to acquire images. The timing opening of the camera is set for monitoring, so that the time for finding the fire can be greatly shortened.
Step S3: analyzing the thermal imaging image; the method for analyzing the thermal imaging image comprises the following steps: segmenting the thermographic image; analyzing the temperature distribution of the segmented thermal imaging image; and judging the fire degree according to the temperature distribution proportion of the image. The temperature distribution is calculated by the following formula:
；
wherein, X is an image segmentation area;
is the temperature of the image area or areas,
the temperature of the edge region; alpha is each pixel point set; β is the set connecting adjacent node edges. The images acquired at this time may be multiple thermographic images containing different spaces. Wherein the thermographic image is segmented into regions where the thermographic image has a higher temperature.
Step S4: judging the fire degree according to the analysis result; and judging the temperature proportion according to the temperature situation proportion of the divided regions to the total image region, and further judging the fire degree. The temperature proportion is that different high-temperature temperatures account for the proportion of the whole shooting picture, and then the range of the fire is analyzed.
Step S5: and sending out alarm information to the fire degree. Send alarm information to the conflagration degree do, send alarm information to the terminal, alarm information include the thermal imaging image to and the conflagration degree. The terminal is a mobile phone terminal of a user, and the terminal can receive the alarm information to alarm.
The method can overcome the defect that the fire condition is judged only by various sensors, judges the fire from the temperature perspective by the thermal imaging technology, enables alarm information to be more accurate, can determine the fire behavior of the fire by calculation, and provides powerful help for rescue under judgment.
As shown in fig. 2, the present invention provides a fire alarm system, which specifically comprises:
the monitoring module 1: the monitoring module is used for receiving an alarm signal;
the thermal imaging image acquisition module 2: the thermal imaging image acquisition module is used for acquiring a thermal imaging image according to the alarm signal;
the image analysis module 3: the image analysis module is used for analyzing the thermal imaging image;
and a judging module 4: the judging module is used for judging the fire degree according to the analysis result;
and the alarm module 5: the alarm module is used for sending out alarm information to the fire degree.
The monitoring module is connected with the thermal imaging image acquisition module; the thermal imaging image acquisition module is connected with the image analysis module; the image analysis module is connected with the judgment module; the judging module is connected with the alarm module.
The monitoring module acquires alarm information through several detectors, transmits the alarm information to the thermal imaging image acquisition module, the thermal imaging image acquisition module acquires the alarm information, starts a thermal imaging camera to acquire thermal imaging images, and simultaneously transmits the thermal imaging images to the image analysis module, the image analysis module processes the thermal imaging images, transmits a processing result to the image branch judgment module, the judgment module judges the fire situation, and the alarm module acquires the fire analysis situation to alarm and informs a user of information.
The monitoring module 1 is used for receiving an alarm signal; the monitoring module comprises: smoke detectors, temperature detectors, flame detectors, and gas detectors. The gas detector can monitor carbon dioxide, carbon monoxide, sulfide, nitride and chloride gas smoke.
The thermal imaging image acquisition module 2 is used for acquiring a thermal imaging image according to the alarm signal; acquiring a thermal imaging image according to the alarm signal; the thermal imaging image is obtained through a thermal imaging camera, and the thermal imaging camera is automatically started within a certain time to obtain the thermal imaging image.
The image analysis module 3 is used for analyzing the thermal imaging image; the method for analyzing the thermal imaging image comprises the following steps: segmenting the thermographic image; analyzing the temperature distribution of the segmented thermal imaging image; and judging the fire degree according to the temperature distribution proportion of the image. The temperature distribution is calculated by the following formula:
wherein, X is an image segmentation area;
is the temperature of the image area or areas,
the temperature of the edge region; alpha is each pixel point set; β is the set connecting adjacent node edges.
The judging module 4 is used for judging the fire degree according to the analysis result; and judging the temperature proportion according to the temperature situation proportion of the divided regions to the total image region, and further judging the fire degree.
The alarm module 5 is used for sending out alarm information to the fire degree. Send alarm information to the conflagration degree do, send alarm information to the terminal, alarm information include the thermal imaging image to and the conflagration degree.
The present invention also provides a computer readable storage medium having stored thereon computer program instructions adapted to be loaded by a processor and execute the method of fire alarm.
The invention also provides a mobile terminal which comprises a processor and a memory, wherein the processor is used for executing the program stored in the memory so as to realize the fire-fighting alarm method.
The above detailed description is specific to possible embodiments of the present invention, and the above embodiments are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the scope of the present invention should be included in the present claims.
Claims (10)
1. A fire alarm method, comprising:
receiving an alarm signal;
acquiring a thermal imaging image according to the alarm signal;
analyzing the thermal imaging image;
judging the fire degree according to the analysis result;
and sending out alarm information to the fire degree.
2. A fire alarm method as recited in claim 1 wherein said alarm signal is obtained by a monitoring module, said monitoring module comprising: smoke detectors, temperature detectors, flame detectors, and gas detectors.
3. A fire alarm method as recited in claim 1 wherein the thermal imaging image is acquired by a thermal imaging camera that is automatically turned on for a predetermined period of time to acquire the thermal imaging image.
4. A fire alarm method as recited in claim 1 wherein said method of analyzing said thermographic image comprises:
segmenting the thermographic image;
analyzing the temperature distribution of the segmented thermal imaging image;
and judging the fire degree according to the temperature distribution proportion of the image.
5. A fire alarm method according to claim 4, wherein the temperature distribution is calculated by the following formula:
；
wherein, X is an image segmentation area; said
Is the temperature of the image area, said
The temperature of the edge region; the alpha is each pixel pointGathering; and the beta is a set connecting adjacent node edges.
6. A fire alarm method as defined in claim 4, wherein said judging the fire degree according to the temperature distribution ratio of the image specifically comprises: and judging the temperature proportion according to the temperature situation proportion of the divided regions to the total image region, and further judging the fire degree.
7. A fire alarm method as defined in claim 1, wherein said sending out alarm information to the fire extent is sending alarm information to the terminal, said alarm information including the thermographic image and the fire extent.
8. A fire alarm system, comprising:
a monitoring module: the monitoring module is used for receiving an alarm signal;
a thermal imaging image acquisition module: the thermal imaging image acquisition module is used for acquiring a thermal imaging image according to the alarm signal;
an image analysis module: the image analysis module is used for analyzing the thermal imaging image;
a judging module: the judging module is used for judging the fire degree according to the analysis result;
an alarm module: the alarm module is used for sending out alarm information to the fire degree.
9. A computer-readable storage medium, characterized in that the computer-readable storage medium stores computer program instructions adapted to be loaded by a processor and to perform the method of any of claims 1 ~ 7.
10. A mobile terminal comprising a processor and a memory, the processor being configured to execute a program stored in the memory to implement the method of any of claims 1 ~ 7.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113781736A (en) * | 2021-09-23 | 2021-12-10 | 深圳市保国特卫安保技术服务有限公司 | Building fire-fighting early warning method, system, equipment and storage medium |
| CN114191747A (en) * | 2021-11-23 | 2022-03-18 | 湖南省驰普新能源科技有限公司 | Controllable lithium ion battery fire extinguishing method, device, equipment and storage medium |
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| CN114191747A (en) * | 2021-11-23 | 2022-03-18 | 湖南省驰普新能源科技有限公司 | Controllable lithium ion battery fire extinguishing method, device, equipment and storage medium |
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Application publication date: 20200117 |