CN111275918B - Flame detection analysis early warning system - Google Patents
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Abstract
The invention discloses a flame detection analysis early warning system, wherein a plurality of video acquisition devices are arranged in a corridor at intervals, and the acquisition ranges of adjacent video acquisition devices are overlapped in a crossed manner, wherein each video acquisition device comprises: the camera module comprises an infrared thermal imager and a camera, the infrared thermal imager is used for collecting an infrared thermal image, and the camera is used for collecting video data; the main control unit is used for analyzing the infrared thermograph after acquiring the infrared thermograph and the video data, and analyzing the video data through the first image analysis module after determining that an area with an abnormal temperature value exists on the infrared thermograph; the first image analysis module is used for extracting and identifying flame characteristics of a video image in the video data and generating flame warning information when the flame characteristics exist in the video image. The method and the device can identify the flame characteristics in the video data to realize early warning, and have the characteristic of high safety.
Description
Technical Field
The invention relates to the technical field of fire fighting, in particular to a flame detection, analysis and early warning system.
Background
Fire disasters are extremely destructive, so people pay attention to fire prevention and treatment, and a large amount of manpower and material resources are also invested in research and development of fire prevention, detection and elimination technologies.
Wherein, in building buildings such as hotel, office space, the control to the conflagration is usually through setting up smoke alarm in the corridor, gathers smog through smoke alarm, and then sends warning signal when discovering smog, and then puts out the fire source.
However, the smoke alarm can be detected only when the fire point of the flame has a certain scale and substances in the corridor can be burnt, so that the fire source is often extinguished out untimely. The existing flame early warning system has the problem that people throw unburnt cigarette ends into a garbage can in the face of a corridor, and the safety hidden danger of small fire species cannot be early warned in advance, so that certain improvement is provided in the safety.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a flame detection, analysis and early warning system which can identify the flame characteristics in video data and warn in advance and has the characteristic of high safety.
The technical purpose of the invention is realized by the following technical scheme:
the utility model provides a flame detection analysis early warning system, includes a plurality of video acquisition device, and a plurality of video acquisition device intervals set up in the corridor, and adjacent video acquisition device's collection scope alternately overlaps, and wherein, video acquisition device includes:
the camera module comprises an infrared thermal imager and a camera, wherein the infrared thermal imager is used for collecting an infrared thermal image, and the camera is used for collecting video data;
the main control unit is used for analyzing the infrared thermograph after acquiring the infrared thermograph and the video data, and analyzing the video data through the first image analysis module after determining an area with abnormal temperature values on the infrared thermograph; wherein the content of the first and second substances,
the first image analysis module is used for extracting and identifying flame characteristics of a video image in the video data and generating flame warning information when the flame characteristics exist in the video image.
Preferably, the first image analysis module is further used for analyzing flame characteristics of the flame characteristics, wherein the flame characteristics comprise fire point size, fire area and flame spread speed;
the first image analysis module judges the fire type of the flame characteristics in the video image according to the preset fire range in which the fire falls, the preset fire area in which the fire area falls and the spreading speed of the flame, and combines the fire type into the flame warning information.
Preferably, the first image analysis module sequentially performs image preprocessing and analysis, flame feature extraction and flame feature identification on the video images in the video data by using a deep learning algorithm.
Preferably, the video acquisition device further comprises a smoke sensor;
when the main control unit acquires the smoke signal output by the smoke sensor, the main control unit analyzes the video data through the second image analysis module;
the second image analysis module is used for extracting and identifying smoke features of a video image in the video data and judging smoke features of the smoke features, wherein the smoke features comprise smoke size, a smoke area and smoke moving speed, and smoke warning information is generated when the smoke size exceeds a preset smoke threshold value, the area of the smoke area exceeds a preset area, and/or the smoke moving speed exceeds a preset speed.
Preferably, the camera is a wide-angle low-light night vision camera.
Preferably, the lens of the camera adopts a fog-penetrating lens.
Preferably, the flame detection, analysis and early warning system further comprises a client;
the video acquisition devices are in communication connection with the client in a wireless or wired mode and are used for sending the generated flame warning information to the client.
Preferably, the video acquisition device further comprises an installation carrier, the camera module is arranged on the installation carrier, and the main control unit and the first image analysis module are arranged in the installation carrier;
the main control unit is connected with a distance measuring module, the distance measuring module is used for carrying out three-dimensional coordinate positioning on the temperature value abnormal area in the infrared thermal image and calculating the direction and the distance between the temperature value abnormal area and the video acquisition device according to the positioned three-dimensional coordinate;
the wall surface of the corridor is provided with a sliding rail for the sliding of the installation carrier, the sliding rail is provided with a driving component for driving the installation carrier to slide, the main control unit is used for controlling the driving component to act when the fire type is a medium fire, and the driving component is used for driving the installation carrier to slide to a position corresponding to the temperature value abnormal area;
the installation carrier is provided with a telescopic fire extinguishing device, when the installation carrier is located at a position opposite to the temperature value abnormal area, the telescopic fire extinguishing device is controlled by the main control unit, and the telescopic fire extinguishing device is used for spraying fire extinguishing materials at the temperature value abnormal area.
Preferably, the telescopic fire extinguishing device comprises a mounting seat, a telescopic rod and an electric control lock;
the mounting seat is arranged in the mounting carrier, one end of the telescopic rod is connected to the mounting seat, the other end of the telescopic rod is connected with a mounting plate which can be attached to the surface of the mounting carrier, the electric control lock is mounted on the mounting carrier, and the mounting plate is provided with a fixing lug which is matched with a lock tongue of the electric control lock;
the telescopic rod comprises a plurality of hollow upright posts which are sleeved with each other and an elastic spring arranged between the adjacent upright posts, the interior of each upright post is communicated with the mounting seat, and each upright post is provided with a micro spray head communicated with the interior;
be provided with in the installation carrier and store the chamber, it has fire extinguishing material to store to fill in the chamber, be equipped with the conveyer pipe that communicates in the mount pad on storing the chamber, install the solenoid valve on the conveyer pipe, the solenoid valve is controlled by the main control unit, install the piston in storing the chamber, be provided with in the installation carrier and be used for ordering about the piston motion and press the electric putter who moves fire extinguishing material.
Preferably, the micro spray heads are provided with a plurality of micro spray heads, the micro spray heads are circumferentially distributed on the stand column, and each micro spray head is flush with the surface of the stand column.
In summary, compared with the prior art, the beneficial effects of the invention are as follows:
according to the method, whether a temperature value abnormal area exists or not is judged through an infrared thermal image, if the temperature value abnormal area exists, the video data are judged, whether flame characteristics exist in the video image or not is extracted and identified, and if the flame characteristics exist, flame warning information is generated, so that attention can be paid and extinguishment can be carried out when a small flame exists in a corridor according to early warning of the flame warning information, or whether personnel ignite cigarettes, lighters or matches in the corridor or not can be known according to the flame warning information, so that monitoring is carried out according to the video data, corresponding actions can be taken, and potential safety hazards of fire are isolated;
from this, this application will be integrated on video acquisition device with infrared thermal imaging appearance and flame characteristic discernment to draw the discernment and warn in advance through the flame characteristic to in the video image, have the characteristics of security height.
Drawings
Fig. 1 is a schematic view of an acquisition range of a video acquisition device according to the technical solution of the present invention;
FIG. 2 is a schematic flow chart of flame feature recognition according to the present invention;
fig. 3 is a schematic flow chart of smoke feature identification in the technical solution of the present invention;
FIG. 4 is a schematic view of the installation of the video acquisition device according to the present invention;
FIG. 5 is a schematic view of a telescopic fire extinguisher according to the present invention;
FIG. 6 is a schematic structural diagram of a mounting carrier according to an embodiment of the present invention;
fig. 7 is a schematic view of the telescopic rod in the technical solution of the present invention in a telescopic state.
Reference numerals: 1. a video capture device; 11. a camera module; 12. mounting a carrier; 13. a telescopic fire extinguishing device; 131. a mounting seat; 132. a telescopic rod; 1321. a column; 1322. an elastic spring; 133. an electrically controlled lock; 134. mounting a plate; 135. fixing the ear; 136. a micro spray head; 137. a storage chamber; 138. a fire extinguishing material; 139. a delivery pipe; 140. an electromagnetic valve; 141. a piston; 142. an electric push rod; 143. the refill port.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. It should be noted that: the relative arrangement of parts and steps set forth in these embodiments does not limit the scope of the present invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
As shown in fig. 1, the invention provides a flame detection, analysis and early warning system, which is applied to building buildings such as hotels and office places, and comprises a client and a plurality of video acquisition devices 1, wherein the video acquisition devices 1 are arranged in corridors at intervals, each video acquisition device 1 has an acquisition range, and the acquisition ranges of adjacent video acquisition devices 1 are overlapped in a cross way, so that the corridors can be completely covered by the acquisition ranges of the video acquisition devices 1 in the same layer of the corridor.
The plurality of video acquisition devices 1 are in communication connection with the client in a wireless or wired mode, and the plurality of video acquisition devices 1 can send video data in an acquisition range to the client so as to facilitate monitoring of management personnel through the client. The client can adopt a mobile terminal or a fixed terminal, the mobile terminal can be a mobile phone, a notebook computer and the like, and the fixed terminal can be an intelligent television, a server and the like.
Therefore, the defect that the smoke alarm cannot early warn a fire in advance in the prior art is overcome, flame analysis is carried out on video data collected by the video collecting device 1, and then flame warning information and/or smoke warning information are sent to the client side, and managers check the flame warning information or the smoke warning information through the client side to achieve early warning, so that the smoke alarm has the advantage of being high in safety.
Specifically, the video capture device 1 includes an installation carrier 12, a camera module 11 and a main control unit.
The installation carrier 12 is used for bearing each part of the video acquisition device 1, the installation carrier 12 is arranged on the wall surface of the corridor, wherein the camera module 11 is arranged on the installation carrier 12, and the main control unit is arranged in the installation carrier 12.
The camera module 11 comprises an infrared thermal imager and a camera, the shooting range of the infrared thermal imager and the camera is the acquisition range of the video acquisition device 1, and the infrared thermal imager and the camera are arranged side by side. It should be noted that the infrared thermal imaging camera is used to collect an infrared thermal image, and the camera is used to collect video data. The camera can realize wide-angle shooting and shooting at night. Thereby, the capturing range of the video capture device 1 will be captured in a range of a wide angle of 120 ° centered on the mounting point of the video capture device 1.
The main control unit is used for acquiring the infrared thermograph and video data, firstly analyzes the infrared thermograph, judges whether an area with an abnormal temperature value exists in the infrared thermograph, and analyzes the video data through the first image analysis module after the main control unit determines the area with the abnormal temperature value in the infrared thermograph. Therefore, when the judgment is carried out through the infrared thermograph, on one hand, the accuracy of flame detection is improved, and on the other hand, the motion calculation of the video acquisition device 1 can be reduced.
The first image analysis module is used for extracting and identifying flame characteristics of a video image in the video data, generating flame warning information when the flame characteristics exist in the video image, and sending the flame warning information to a middle client side by the main control unit.
The method specifically comprises the following steps:
as shown in fig. 2, the first image analysis module sequentially performs image preprocessing and analysis, flame feature extraction, and flame feature identification by using a deep learning algorithm on video images in the video data. The image preprocessing and segmentation and the flame feature extraction are specifically to preprocess and segment the image to eliminate the interference part of non-fire flames in the image, so that the extracted features are more accurate, and then extract the flame features in the flame target area. The image segmentation divides the image into a single-frame image and an image sequence, and when the image is the single-frame image, static feature extraction is performed on the image, and when the image is the image sequence, dynamic feature extraction is performed on the image.
The method for identifying the flame characteristics by adopting the deep learning algorithm specifically comprises the following steps: 1. establishing a neural network and determining a weight; 2. inputting flame training samples in a network, training, estimating the most appropriate weight function, and continuously correcting the weight function; 3. and extracting a weight function and a fuzzy rule from the network and storing the weight function and the fuzzy rule. The flame sample is collected through a plurality of tests, namely, but not limited to, the flame sample is collected by igniting and burning various inflammable matters in a corridor or igniting a lighter, and igniting cigarette flame or match, the flame burning is photographed and recorded, and the flame burning of different materials is different in expression, such as flame color, shape, smoke concentration and color.
It should be noted that, in this embodiment, after the first image analysis module extracts and identifies the flame characteristics of the video image, the first image analysis module is configured to analyze the flame characteristics of the flame characteristics, where the flame characteristics include a fire point size, a fire area, and a flame propagation speed.
The main control unit stores preset fire point ranges, fire area areas and flame spread speeds of various fire types in the database, namely when the fire type is small fire, the small fire has corresponding fire point ranges, fire area areas and flame spread speeds, and similarly, when the fire type is medium fire and large fire, the medium fire and the large fire have corresponding fire point ranges, fire area areas and flame spread speeds. The fire type in this embodiment is the size of the flame, so that the flame of a lighter, the flame ignited by a match, the cigarette butt and the like are all defined as the fire type of a small fire, the local flame such as the combustion of garbage in a garbage can in a corridor and the like is defined as the fire type of a medium fire, and the combustible matter such as the wall surface of the corridor and the like is combusted in a large range and is defined as the fire type of a large fire.
Therefore, the first image analysis module judges the fire type of the flame characteristics in the video image according to the preset fire range in which the fire size in the video image falls, the preset fire area in which the fire area falls and the spreading speed of the flame, and combines the fire type into the flame warning information.
The following is specifically described:
when the first image analysis module identifies that flame characteristics exist in the video image, flame warning information is generated, and the flame warning information records the position of the video acquisition device 1 which detects the flame, such as flame found at the video acquisition device 1 numbered in the second floor xx of the xx building.
Wherein, the first image analysis module will be according to the predetermined fire point scope that the fire point size fell into in the video image, the predetermined area of catching fire that the ignition region fell into, and the speed of stretching of flame, judge the fire type of flame characteristic in the video image, and combine the fire type to the flame alarm information in, if find that someone ignites cigarette through the lighter in the corridor, thereby through the detection to the flame characteristic of lighter in the video image, judge that the fire type is the small fire, combine the fire type to the flame alarm information after, will generate following flame alarm information: the flame is found at the video acquisition device 1 numbered xx on the second floor of the xx building, wherein the flame type is a small fire, and the flame type comprises that a user in the second floor ignites a cigarette through a lighter, ignites the cigarette through a match or is smoking. "
From this, through after sending flame alarm information to the customer end, managers can possess approximate judgement in the heart after discovering flame alarm information through the customer end, and then can turn over video data and confirm the condition to avoid follow-up condition of a fire aggravation.
Referring to fig. 1 and 3, after the smoke features are extracted, the second image analysis module determines smoke characteristics of the smoke features, where the smoke characteristics include a smoke size, a smoke area, and a smoke moving speed. And generating smoke alarm information when the smoke size exceeds a preset smoke threshold, the area of the smoke area exceeds a preset area, and/or the moving speed of the smoke exceeds a preset speed.
This application draws and discerns through flame characteristic and smog characteristic in the video data, generates flame alarm information and smog alarm information respectively through dual detection to further improve the accuracy that detects. For example, when the cigarette is ignited by a lighter, wherein the user is at the back of the video acquisition device 1, the infrared thermal imager and the camera cannot acquire infrared thermal images and video data with flame characteristics, and further cannot generate flame warning information by analyzing the video data, but at this time, the user does ignite the cigarette and throws the cigarette end into a trash can for extinguishing the cigarette end, which causes a safety hazard of burning trash in the trash can.
Therefore, this application detects the smog condition in the corridor through smoke transducer, and then controls second image analysis module according to the smog condition and analyzes video data, extracts the smog characteristic, and then judges the smog characteristic of smog characteristic, generates smog alarm information to send smog alarm information to the customer end, managers also can guard against in advance through smog alarm information, reaches the purpose of early warning in order to improve the security.
After the flame characteristics are detected in the video data, in order to further improve the safety, the fire source can be put out in advance and the dangerous case can be controlled when the type of fire is a medium fire under the condition that no staff intervenes.
Referring to fig. 4 and 5, the wall surface of the corridor is horizontally provided with a slide rail, the length of the slide rail is the same as the width of the acquisition range of the video acquisition device 1, the installation carriers 12 are slidably installed on the slide rail, and because the slide rail has mutually crossed and overlapped parts, the adjacent installation carriers 12 are arranged in a vertically staggered manner, so that mutual interference and collision caused by the adjacent installation carriers 12 in the sliding process are avoided.
The main control unit is connected with a distance measuring module which is used for carrying out three-dimensional coordinate positioning on the temperature value abnormal area in the infrared thermograph and calculating the direction and the distance between the temperature value abnormal area and the video acquisition device 1 according to the positioned three-dimensional coordinate.
Be provided with on the slide rail and be used for driving about the gliding drive assembly of installation carrier 12, the main control unit is connected in drive assembly, drive assembly includes hold-in range and two synchronous pulley, and two synchronous pulley rotate to be installed at the slide rail both ends, and the hold-in range setting is on two synchronous pulley, and installation carrier 12 is fixed on the fixed band, and wherein, be provided with on the slide rail and link to each other in order to drive this synchronous pulley pivoted driving motor with one of them synchronous pulley, and driving motor adopts servo motor.
The initial position setting of video acquisition device 1 is in the mid point position of slide rail, discerns the flame characteristic in the video image as first image analysis module, and when the kind of a fire type of discerning the flame characteristic is the medium fire, main control unit detects direction and distance between temperature value abnormal region and this video acquisition device 1 through range module after, and main control unit generates corresponding drive command, and main control unit control drive assembly moves, and drive assembly is used for ordering about installation carrier 12 and slides to the regional relative position department of temperature value abnormal region.
It is worth mentioning that the installation carrier 12 is provided with the telescopic fire extinguishing device 13, when the installation carrier 12 is located at a position opposite to the temperature value abnormal area, the telescopic fire extinguishing device 13 is controlled by the main control unit, and the telescopic fire extinguishing device 13 is used for spraying the fire extinguishing material 138 at the temperature value abnormal area.
Specifically, as shown in fig. 6 and 7, the telescopic fire extinguishing apparatus 13 includes a mounting seat 131, a telescopic rod 132 and an electrically controlled lock 133.
The mounting seat 131 is arranged in the mounting carrier 12, one end of the telescopic rod 132 is connected to the mounting seat 131, the other end of the telescopic rod 132 is connected with a mounting plate 134 which can be attached to the surface of the mounting carrier 12, the electric control lock 133 is mounted on the mounting carrier 12, and a fixing lug 135 which is matched with a bolt of the electric control lock 133 is arranged on the mounting plate 134; when the telescopic rod 132 retracts and then is installed in the carrier 12, the installation plate 134 is attached to the surface of the installation carrier 12, and the electric control lock 133 fixes the fixing lug 135; conversely, when the electrically controlled lock 133 releases the lock on the securing ear 135, the telescoping rod 132 extends from the mounting carrier 12.
The telescopic rod 132 is extended and retracted on the installation carrier 12 in a horizontal state, the telescopic rod 132 comprises a plurality of hollow upright posts 1321 which are sleeved with each other, and an elastic spring 1322 arranged between the adjacent upright posts 1321, the maximum extension length of the telescopic rod 132 is communicated with the width of the corridor, and therefore, when the telescopic rod 132 is in the maximum extension state, the installation plate 134 at the end part of the telescopic rod 132 is abutted against the wall of the corridor.
Wherein, the inside cavity of mount pad 131 sets up, and the inside of every stand 1321 all communicates with each other with mount pad 131, all is provided with on every stand 1321 with inside communicating miniature shower nozzle 136, and in this embodiment, miniature shower nozzle 136 is provided with a plurality of, and a plurality of miniature shower nozzle 136 circumference distributes on stand 1321, and every miniature shower nozzle 136 flushes with the surface of stand 1321.
The installation carrier 12 is internally provided with a storage cavity 137, the storage cavity 137 is filled with fire extinguishing materials 138, the fire extinguishing materials 138 can be fire-proof and fire-retardant liquid, wherein the storage cavity 137 is provided with a delivery pipe 139 communicated with the installation seat 131, the delivery pipe 139 is provided with an electromagnetic valve 140, the electromagnetic valve 140 is controlled by a main control unit, the storage cavity 137 is internally provided with a piston 141, the installation carrier 12 is internally provided with an electric push rod 142 for driving the piston 141 to move, the electric push rod 142 drives the piston 141 to move, the piston 141 compresses the fire extinguishing materials 138 in the storage cavity 137, the fire extinguishing materials 138 are extruded into the installation seat 131 and flow to each upright 1321, and the pressurized fire extinguishing materials 138 are sprayed out from the micro spray head 136.
It is worth to be noted that the side surface of the mounting carrier 12 is further provided with a supplementary port 143 communicated with the storage chamber 137, a leakage-proof check valve is arranged in the supplementary port 143, the supplementary port 143 is sealed by a screw plug, and the fire extinguishing material 138 can be supplemented into the storage chamber 137 through the supplementary port 143.
In this application, in order to avoid the outage to cause the influence to video acquisition device 1, still be provided with in installation carrier 12 and be used for linking to each other with the main control unit in order to be used for providing the stand-by power supply of electric energy for each part of video acquisition device 1, wherein, stand-by power supply passes through charging circuit and connects in the commercial power.
The specific working process is as follows:
when the first image analysis module identifies the flame characteristics in the video image and the type of fire of the flame characteristics is identified as a medium fire, the main control unit detects the direction and the distance between the abnormal temperature value area and the video acquisition device 1 through the ranging module, generates a corresponding driving instruction, controls the driving assembly to act, and is used for driving the mounting carrier 12 to slide to the position corresponding to the abnormal temperature value area;
the action of the main control unit control electric control lock 133, the fixed lug 135 is loosened by the electric control lock 133, the telescopic rod 132 extends out of the installation carrier 12, at the moment, the main control unit controls the action of the electric push rod 142, the electric push rod 142 drives the piston 141 to move, the piston 141 compresses the fire extinguishing materials 138 in the storage cavity 137, the fire extinguishing materials 138 are extruded to enter the installation seat 131 and flow to each upright 1321, the pressurized fire extinguishing materials 138 are sprayed out from the micro spray heads 136, and therefore the fire extinguishing materials 138 are sprayed at positions where flames exist, and when workers do not reach the site, the fire is controlled.
Subsequently, the main control unit controls the action of the driving assembly, resets the video acquisition device 1 to the initial position, and when the worker arrives at the site, the mounting plate 134 can be pressed, the telescopic rod 132 is pressed back into the mounting carrier 12 and locked by the electric control lock 133, and the fire extinguishing material 138 is replenished into the storage cavity 137 through the replenishing port 143 so as to deal with the next use condition.
Wherein, the position that takes place when the flame burning is at the intersection of two video acquisition device 1's collection scope to two adjacent video acquisition device 1 can remove and take place the position relative place with the flame burning, spray fire extinguishing material 138 in flame burning department through flexible extinguishing device 13, thereby improve the control effect to the condition of a fire.
The above description is intended to be illustrative of the present invention and not to limit the scope of the invention, which is defined by the claims appended hereto.
Claims (6)
1. The utility model provides a flame detection analysis early warning system, includes a plurality of video acquisition device (1), its characterized in that, a plurality of video acquisition device (1) intervals set up in the corridor, and the collection scope of adjacent video acquisition device (1) alternately overlaps, and wherein, video acquisition device (1) includes:
the camera shooting module (11), the camera shooting module (11) comprises an infrared thermal imager and a camera, the infrared thermal imager is used for collecting an infrared thermal image, and the camera is used for collecting video data;
the main control unit is used for analyzing the infrared thermograph after acquiring the infrared thermograph and the video data, and analyzing the video data through the first image analysis module after determining an area with abnormal temperature values on the infrared thermograph; wherein the content of the first and second substances,
the first image analysis module is used for extracting and identifying flame characteristics of a video image in the video data and generating flame warning information when the flame characteristics exist in the video image;
the first image analysis module is also used for analyzing flame characteristics of the flame characteristics, wherein the flame characteristics comprise fire point size, fire area and flame spread speed;
the first image analysis module judges the fire type of the flame characteristics in the video image according to the preset fire range in which the fire point falls, the preset fire area in which the fire area falls and the spreading speed of the flame, and combines the fire type into the flame warning information; the video acquisition device (1) further comprises an installation carrier (12), the camera module (11) is arranged on the installation carrier (12), and the main control unit and the first image analysis module are arranged in the installation carrier (12);
the main control unit is connected with a distance measurement module, the distance measurement module is used for carrying out three-dimensional coordinate positioning on the temperature value abnormal area in the infrared thermograph and calculating the direction and the distance between the temperature value abnormal area and the video acquisition device (1) according to the positioned three-dimensional coordinate;
a slide rail for the mounting carrier (12) to slide is arranged on the wall surface of the corridor, a driving assembly for driving the mounting carrier (12) to slide is arranged on the slide rail, the main control unit is used for controlling the driving assembly to move when the type of fire is a medium fire, and the driving assembly is used for driving the mounting carrier (12) to slide to a position opposite to the temperature value abnormal area;
the installation carrier (12) is provided with a telescopic fire extinguishing device (13), when the installation carrier (12) is at a position opposite to the temperature value abnormal area, the telescopic fire extinguishing device (13) is controlled by the main control unit, and the telescopic fire extinguishing device (13) is used for spraying fire extinguishing materials (138) at the temperature value abnormal area;
the telescopic fire extinguishing device (13) comprises a mounting seat (131), a telescopic rod (132) and an electric control lock (133);
the mounting seat (131) is arranged in the mounting carrier (12), one end of the telescopic rod (132) is connected to the mounting seat (131), the other end of the telescopic rod (132) is connected with a mounting plate (134) which can be attached to the surface of the mounting carrier (12), the electric control lock (133) is mounted on the mounting carrier (12), and a fixing lug (135) matched with a bolt of the electric control lock (133) is arranged on the mounting plate (134);
the telescopic rod (132) comprises a plurality of hollow upright posts (1321) which are sleeved with each other, and an elastic spring (1322) arranged between the adjacent upright posts (1321), the interior of each upright post (1321) is communicated with the mounting seat (131), and each upright post (1321) is provided with a micro spray head (136) communicated with the interior;
a storage cavity (137) is arranged in the mounting carrier (12), fire extinguishing materials (138) are filled in the storage cavity (137), a delivery pipe (139) communicated with the mounting seat (131) is arranged on the storage cavity (137), an electromagnetic valve (140) is mounted on the delivery pipe (139), the electromagnetic valve (140) is controlled by a main control unit, a piston (141) is mounted in the storage cavity (137), and an electric push rod (142) used for driving the piston (141) to move and pressing the fire extinguishing materials (138) is arranged in the mounting carrier (12);
the micro spray heads (136) are arranged in a plurality of numbers, the micro spray heads (136) are circumferentially distributed on the upright post (1321), and each micro spray head (136) is flush with the surface of the upright post (1321).
2. The flame detection, analysis and early warning system of claim 1, wherein the first image analysis module sequentially processes the video images in the video data through image preprocessing and analysis, flame feature extraction, and flame feature recognition by using a deep learning algorithm.
3. A flame detection, analysis and pre-warning system according to claim 1, characterized in that the video capture device (1) further comprises a smoke sensor;
when the main control unit acquires the smoke signal output by the smoke sensor, the main control unit analyzes the video data through the second image analysis module;
the second image analysis module is used for extracting and identifying smoke features of a video image in the video data and judging smoke features of the smoke features, wherein the smoke features comprise smoke size, a smoke area and smoke moving speed, and smoke warning information is generated when the smoke size exceeds a preset smoke threshold value, the area of the smoke area exceeds a preset area, and/or the smoke moving speed exceeds a preset speed.
4. The flame detection, analysis and pre-warning system of claim 1 wherein the camera is a wide-angle low-light night vision camera.
5. The flame detection, analysis and early warning system of claim 1, wherein the lens of the camera is a fog-transparent lens.
6. The flame detection, analysis and pre-warning system of claim 1, further comprising a client;
the video acquisition devices (1) are in communication connection with the client in a wireless or wired mode, and the video acquisition devices (1) are used for sending the generated flame warning information to the client.
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| CN111986436B (en) * | 2020-09-02 | 2022-12-13 | 成都视道信息技术有限公司 | Comprehensive flame detection method based on ultraviolet and deep neural networks |
| CN112037455A (en) * | 2020-09-02 | 2020-12-04 | 安徽泰然信息技术有限公司 | Automatic fire alarm system based on data acquisition |
| CN112133052B (en) * | 2020-09-22 | 2022-09-20 | 岭澳核电有限公司 | Image fire detection method for nuclear power plant |
| CN112465119A (en) * | 2020-12-08 | 2021-03-09 | 武汉理工光科股份有限公司 | Fire-fighting dangerous case early warning method and device based on deep learning |
| CN113450530A (en) * | 2021-06-03 | 2021-09-28 | 河北华电石家庄热电有限公司 | Safety early warning system based on intelligent video analysis algorithm |
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| CN114120570B (en) * | 2021-11-12 | 2023-08-18 | 江苏通信置业管理有限公司 | Intelligent automatic fire alarm device |
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