CN115645796A - YOLOv 5-based automatic positioning jet flow fire extinguishing system and detection positioning method thereof - Google Patents
YOLOv 5-based automatic positioning jet flow fire extinguishing system and detection positioning method thereof Download PDFInfo
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Abstract
An automatic positioning jet fire extinguishing system based on YOLOv5 and a detection positioning method thereof belong to the technical field of automatic fire extinguishing devices, and aim to solve the problems that a common smoke fire detector and a temperature-sensitive fire detector are not suitable for fire detection in high and large space places, and a conventional automatic water spray fire extinguishing system cannot effectively play a role; according to the invention, the extracted video is processed by using a YOLOv5 algorithm, some detection frames with low confidence coefficient are removed by adjusting the confidence coefficient threshold value, so that the accuracy is improved, the frames with low probability are removed by setting the i ou ratio, the target detection result can be obtained, the indoor environment can be continuously monitored by matching with a positioning device, the ignition point can be found and positioned in time, water is sprayed for fire extinguishment after positioning, the fixed-point fire extinguishment avoids the influence caused by large-scale spraying, and the method has the advantages of high accuracy, low deployment cost, flexibility and high detection speed.
Description
Technical Field
The invention relates to the technical field of automatic fire extinguishing devices, in particular to an automatic positioning jet fire extinguishing system based on YOLOv5 and a detection positioning method thereof.
Background
With the diversified development of building structures, various high-space buildings continuously appear, and the fire form is increasingly severe. The large-space building has the characteristics of complex structure, large span, large volume, high clear space, various functions and the like, and when a fire disaster happens, the traditional automatic water spraying fire extinguishing system is difficult to achieve the expected fire extinguishing effect. The fire detection and automatic fire extinguishing in large-space building sites mainly have the following problems: the common smoke fire detector and the temperature-sensing fire detector are not suitable for fire detection in high and large space places, and the conventional automatic water spraying fire extinguishing system cannot effectively play a role.
The automatic positioning jet fire-extinguishing system is a water-spraying fire-extinguishing system which utilizes red and ultraviolet detectors, digital images or other detector components to detect, track and position early fire and extinguish fire by linkage control. The products on the market at present mainly adopt infrared and ultraviolet sensor as the fire detection subassembly, though detect the principle simple, the cost is lower, job stabilization, but when smog concentration is great and there is the shelter, can influence the detectivity of sensor. The sensors are generally very sensitive to sound electromagnetic waves and vibration, are easily interfered by electric welding, lamplight and high-temperature objects, have a certain false alarm rate, and are not suitable for environments with dust or corrosive gas for a long time. When a plurality of fire sources appear in the protection area, the fire source detection and positioning device has the defect that the fire sources cannot be detected and positioned, and meanwhile, the fire intensity cannot be judged. The main reason is that most of the devices adopt an infrared energy pyroelectric mode for positioning detection, but when the flame energy is too strong, the infrared pyroelectric device is saturated, and the flame energy cannot be accurately positioned.
In recent years, technologies such as artificial intelligence, image processing, and computer vision have been rapidly developed, and a fire detection technology based on video images mainly uses a camera to monitor natural landscapes and analyze captured videos, and recognizes flames and smoke to perform fire detection. Different from the traditional fire detection technology, the detection system developed on the basis of the video image theory has the advantages of rapid response, no contact, information display, intelligence and integration. The traditional fire detector requires smoke or gas to diffuse to a sensor, but a detection system developed on the basis of a video image theory does not need the smoke or gas diffusion sensor, an alarm signal can be rapidly sent out as long as flame or smoke appears in a monitoring range, and more precious time can be won for extinguishing a fire and evacuating people by early fire early warning. The on-site progress of the fire can also be seen at the same time as the alarm signal is issued. With the rapid development of security video monitoring systems, if a detection algorithm is embedded into the monitoring system, huge video fire monitoring network coverage is realized. The traditional image processing fire detection technology mainly judges the fire through factors such as color, frequency, geometric features and the like in the image. If the factor exceeds a certain threshold value, the fire is judged, namely, the method needs to manually introduce some prior information. According to a detection object, the fire image detection system mainly detects two types of flames and smoke when a fire disaster happens, and the core is to extract and research characteristics, and the key is to extract the characteristics and the rule of a fire image. The fire image features mainly include static and dynamic features, wherein the static features include shape, texture and color features, and the dynamic features include morphological change, migration direction of flame and smoke, and the like. The traditional image processing fire detection technology needs manual feature extraction and excessively depends on manpower, YOLOv5 is one of models with optimal performance in the field of current deep learning target detection, the core of the model is a feature extraction structure of a convolutional neural network, the input target category and the output position can be identified, and the method is an algorithm combining image classification and positioning. The method has the characteristics of controllable model size, high accuracy, low deployment cost, high flexibility, high detection speed and the like, and is suitable for serving as an image processing part of a novel image fire detection system.
Based on the intelligent fire-fighting concept, the automatic positioning jet fire extinguishing system which combines the automatic fire detection positioning and the automatic jet fire extinguishing equipment by adopting new technical means such as a YOLO target detection algorithm and the like is provided, and the automatic positioning jet fire extinguishing system has more accurate and quick positioning capability, stronger error correction capability and more reliable anti-jamming capability. Is expected to become an effective scheme for solving the problems of fire detection and fire extinguishment in high and large space building places.
Disclosure of Invention
The invention aims to provide an automatic positioning jet fire extinguishing system based on YOLOv5 and a detection positioning method thereof, and solves the problems that a common smoke fire detector and a temperature-sensitive fire detector in the background technology are not suitable for fire detection in high and large space places, and a conventional automatic water spraying fire extinguishing system cannot effectively play a role.
In order to achieve the purpose, the invention provides the following technical scheme: the detection and positioning method of the automatic positioning jet flow fire extinguishing system based on the YOLOv5 comprises the following steps:
s1, rotating an image acquisition device through a fire extinguishing device, and continuously monitoring an indoor environment through the image acquisition device;
s2, the image acquisition device compresses and encrypts the acquired video information, and then transmits the video information to the position of the terminal by using a local area network or the Internet, and a fire detection module of the terminal can adjust a proper frame number according to the performance of the server to extract the video;
and S3, processing the extracted video by using a YOLOv5 algorithm, obtaining a result, wherein each target frame has a confidence coefficient detected as the object, and removing some detection frames with low confidence coefficients by adjusting a confidence coefficient threshold value, so that the accuracy is improved. Setting weight, and inhibiting three parameters, namely confidence coefficient threshold conf-thres and non-maximum value nms and ratio iou of intersection and union of a prediction frame and a real frame; if one frame generates a plurality of detection targets in the detection process, removing the frame with low possibility by setting an iou ratio, and obtaining the result of target detection;
and S4, outputting a target detection result, if flame exists in the target detection result, transmitting a signal back to the controller by the terminal, and extinguishing the fire by the fire extinguishing device.
The invention provides another technical scheme that: the utility model provides an automatic positioning efflux fire extinguishing systems based on YOLOv5, which comprises a fixed disk, main part rotary drive device, image acquisition device, first branch, a supporting plate, swinging head and shower nozzle, main part rotary drive device installs the lower terminal surface at the fixed disk, image acquisition device is located main part rotary drive device below and installs the output at main part rotary drive device, first branch is installed on the outer wall of main part rotary drive device output, the other end at first branch is installed to the backup pad, swing joint has the swinging head in the backup pad, and the other end of swinging head is connected with the shower nozzle.
Further, the top of fixed disk is connected with the mounting panel through evenly distributed's dead lever, and the mounting panel is equipped with the mounting hole that is used for installing at indoor ceiling, installs the fixed disk on indoor ceiling through the mounting panel.
Furthermore, an annular water storage groove is formed in the outer side end of the circumference of the fixed disc, an annular pipe is further arranged on the outer edge of the fixed disc, the annular pipe is connected with the fixed disc in a rotating and sealing mode and communicated with the annular water storage groove, and an annular U-shaped clamping strip is arranged at one end, facing the annular water storage groove, of the annular pipe.
Furthermore, a water inlet pipe is arranged at the position, close to the edge, of the top of the fixed disc, one end of the water inlet pipe is communicated with the annular water storage tank, and an audible alarm is mounted in the middle of the top of the fixed disc.
Furthermore, the bottom of the annular tube is close to the position of the edge and is fixedly connected with a connecting rod, the bottom of the connecting rod is fixedly connected with a second supporting rod, and the other end of the second supporting rod is connected with the output end of the main body rotation driving device.
Furthermore, a second rotation driving device is installed on the side face of the supporting plate, and the output end of the second rotation driving device is fixedly connected with one end of the rotating pipe.
Furthermore, the upper end of backup pad is provided with the limiting plate, and the limiting plate is corresponding with the rotating tube.
Furthermore, the bottom of the rotating pipe is fixedly connected with a positioning device below the spray head.
Furthermore, the bottom of the annular pipe is fixedly connected with a water delivery pipe close to the edge, the other end of the water delivery pipe is connected with a rotating pipe, and the rotating pipe is communicated with the inside of the annular pipe through the water delivery pipe.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the YOLOv 5-based automatic positioning jet fire extinguishing system and the detection positioning method thereof, the extracted video is processed by using a YOLOv5 algorithm, some detection frames with low confidence coefficient are removed by adjusting the confidence coefficient threshold value, so that the accuracy is improved, frames with low possibility are removed by setting the iou ratio, a target detection result can be obtained, the indoor environment can be continuously monitored by matching with a positioning device, an ignition point can be found and positioned in time, water is sprayed for fire extinguishing after positioning is carried out, the fixed-point fire extinguishing avoids the influence caused by large-scale spraying, and the system has the advantages of high accuracy, low deployment cost, flexibility and high detection speed.
Drawings
FIG. 1 is a flow chart of a method for detecting and locating according to the present invention;
FIG. 2 is a schematic view of the overall structure of the present invention;
FIG. 3 is a cross-sectional view of the overall structure of the present invention;
FIG. 4 is a schematic cross-sectional view of a second rotary drive apparatus of the present invention;
FIG. 5 is an enlarged view of the structure of the annular U-shaped clamping strip of the present invention.
In the figure: 1. a water inlet pipe; 2. mounting a plate; 3. a fixing rod; 4. fixing the disc; 5. an annular tube; 6. rotating the tube; 7. a support plate; 8. a second rotary drive device; 9. a connecting rod; 10. a second support bar; 11. an image acquisition device; 12. a positioning device; 13. a spray head; 14. a limiting plate; 15. a water delivery pipe; 16. a main body rotation driving device; 17. an audible alarm; 18. a first support bar; 19. an annular water storage tank; 20. annular U-shaped card strip.
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. 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.
Referring to fig. 2-5, the YOLOv 5-based automatic positioning jet fire extinguishing system comprises a fixed disk 4, a main body rotation driving device 16, an image acquisition device 11, a first supporting rod 18, a supporting plate 7, a rotating pipe 6 and a nozzle 13, wherein the main body rotation driving device 16 is installed on the lower end face of the fixed disk 4, a round fixed block is arranged at the lower end of a rotating shaft of the main body rotation driving device 16, the image acquisition device 11 is arranged at the edge of the round fixed block, the first supporting rod 18 is installed on the outer wall of the output end of the main body rotation driving device 16, the supporting plate 7 is installed at the other end of the first supporting rod 18, the rotating pipe 6 is movably connected onto the supporting plate 7, and the other end of the rotating pipe 6 is connected with the nozzle 13.
The top of fixed disk 4 is connected with mounting panel 2 through evenly distributed's dead lever 3, and mounting panel 2 is equipped with the mounting hole that is used for installing at indoor ceiling, installs fixed disk 4 on indoor ceiling through mounting panel 2.
The circumference outside end of fixed disk 4 is equipped with annular aqua storage tank 19, the outer fringe of fixed disk 4 still is provided with ring duct 5, ring duct 5 rotates sealing connection with fixed disk 4, and ring duct 5 is linked together with annular aqua storage tank 19, ring duct 5 is equipped with cyclic annular U-shaped card strip 20 towards the one end of annular aqua storage tank 19, 19 open-ended one end in annular aqua storage tank is equipped with limit flange, 19 open-ended one end in annular aqua storage tank and rather than rotating sealing connection are located to cyclic annular U-shaped card strip 20 card, limit flange card is located cyclic annular U-shaped card strip 20 and is equipped with annular seal ring between the two in order to realize sliding seal.
The top of the fixed disk 4 is provided with a water inlet pipe 1 at a position close to the edge, one end of the water inlet pipe 1 is communicated with an annular water storage tank 19, the middle of the top of the fixed disk 4 is provided with an acoustic alarm 17, the image acquisition device 11 and the main body rotation driving device 16 are electrically connected with the controller, and when the image acquisition device 11 identifies a fire, the acoustic alarm 17 is controlled to give an alarm.
The bottom of the annular tube 5 is fixedly connected with a connecting rod 9 at a position close to the edge, the bottom of the connecting rod 9 is fixedly connected with a second supporting rod 10, and the other end of the second supporting rod 10 is connected with the output end of the main body rotation driving device 16.
The side of the supporting plate 7 is provided with a second rotary driving device 8, the output end of the second rotary driving device 8 is fixedly connected with one end of the rotating pipe 6, and the main body rotary driving device 16 and the second rotary driving device 8 are both motors.
The upper end of the supporting plate 7 is provided with a limiting plate 14, and the limiting plate 14 corresponds to the rotating pipe 6.
The bottom of the rotating pipe 6 is fixedly connected with a positioning device 12 below the spray head 13.
The position fixedly connected with raceway 15 that the bottom of ring conduit 5 is close to the edge, raceway 15 is the hose, the other end of raceway 15 is connected with rotating tube 6, rotating tube 6 is linked together through raceway 15 and ring conduit 5's inside, shower nozzle 13 and the inside intercommunication of rotating tube 6, for tubaeform structure, shower nozzle 13 water inlet department is equipped with the solenoid valve, with the controller switch, water loops through inlet tube 1, annular aqua storage tank 19, raceway 15, rotating tube 6 carries to shower nozzle 13, spout to the area of catching fire by shower nozzle 13.
Specifically, at first with the external pipe network water source of inlet tube 1, after image acquisition device 11 discernment condition of a fire, positioner 12 carries out the accurate positioning to the region of catching fire, signal transmission gives the controller afterwards, 8 drive rotating tube 6 rotations of controller control second rotary driving device, make shower nozzle 13 aim at the region of catching fire, the solenoid valve of simultaneous control is opened, rivers get into annular aqua storage tank 19 through inlet tube 1 in, and get into in the ring channel 19 via annular aqua storage tank 5, then in getting into hollow rotating tube 6 through raceway 15, put out a fire to the region of catching fire through 13 blowout of shower nozzle again.
In order to better explain the above examples, the present invention also provides an embodiment of a detection and location method of a YOLOv 5-based automatic location jet fire-extinguishing system, which comprises the following steps:
the method comprises the following steps: the image acquisition device 11 is rotated through the fire extinguishing device, and the image acquisition device 11 continuously monitors the indoor environment;
step two: the image acquisition device 11 compresses and encrypts the acquired video information, and then transmits the video information to the terminal position by using a local area network or the internet, and a fire detection module of the terminal can adjust a proper frame number according to the performance of the server to extract the video;
step three: and processing the extracted video by using a YOLOv5 algorithm, wherein each target frame has a confidence coefficient detected as the object after a result is obtained, and removing some detection frames with low confidence coefficients by adjusting a confidence coefficient threshold value, so that the accuracy is improved. Setting weight, and inhibiting three parameters, namely confidence coefficient threshold conf-thres and non-maximum value nms and ratio iou of intersection and union of a prediction frame and a real frame; if one frame generates a plurality of detection targets in the detection process, removing the frame with low possibility by setting an iou ratio, and obtaining a target detection result;
step four: and outputting a target detection result, if flame exists in the target detection result, transmitting a signal back to the controller by the terminal, and extinguishing by the fire extinguishing device.
It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (10)
1. The detection and positioning method of the automatic positioning jet flow fire extinguishing system based on the YOLOv5 is characterized by comprising the following steps of:
s1, rotating an image acquisition device (11) through a fire extinguishing device, and continuously monitoring an indoor environment through the image acquisition device (11);
s2, the image acquisition device (11) compresses and encrypts the acquired video information, and then transmits the video information to the terminal position by using a local area network or the Internet, and a fire detection module of the terminal can adjust a proper frame number according to the performance of the server to extract the video;
and S3, processing the extracted video by using a YOLOv5 algorithm, obtaining a result, wherein each target frame has a confidence coefficient detected as the object, and removing some detection frames with low confidence coefficients by adjusting a confidence coefficient threshold value, so that the accuracy is improved. Setting weight, and inhibiting three parameters, namely confidence coefficient threshold conf-thres and non-maximum value nms and ratio iou of intersection and union of a prediction frame and a real frame; if one frame generates a plurality of detection targets in the detection process, removing the frame with low possibility by setting an iou ratio, and obtaining the result of target detection;
and S4, outputting a target detection result, if flame exists in the target detection result, transmitting a signal back to the controller by the terminal, and extinguishing the fire by the fire extinguishing device.
2. A YOLOv 5-based automatic positioning jet fire extinguishing system according to claim 1, characterized in that the fire extinguishing device comprises a fixed disk (4), a main body rotation driving device (16), an image acquisition device (11), a first supporting rod (18), a supporting plate (7), a rotating pipe (6) and a spray head (13), the main body rotation driving device (16) is installed on the lower end face of the fixed disk (4), the image acquisition device (11) is located below the main body rotation driving device (16) and is installed at the output end of the main body rotation driving device (16), the first supporting rod (18) is installed on the outer wall of the output end of the main body rotation driving device (16), the supporting plate (7) is installed at the other end of the first supporting rod (18), the rotating pipe (6) is movably connected to the supporting plate (7), and the spray head (13) is connected to the other end of the rotating pipe (6).
3. The YOLOv 5-based self-positioning jet fire suppression system of claim 2, wherein: the top of fixed disk (4) is connected with mounting panel (2) through evenly distributed's dead lever (3), and mounting panel (2) are equipped with the mounting hole that is used for installing at indoor ceiling, install fixed disk (4) on indoor ceiling through mounting panel (2).
4. The YOLOv 5-based self-localizing jet fire-extinguishing system as recited in claim 3 wherein: the outer side end of the circumference of the fixed disc (4) is provided with an annular water storage groove (19), the outer edge of the fixed disc (4) is further provided with an annular pipe (5), the annular pipe (5) is connected with the fixed disc (4) in a rotating and sealing mode, the annular pipe (5) is communicated with the annular water storage groove (19), and one end, facing the annular water storage groove (19), of the annular pipe (5) is provided with an annular U-shaped clamping strip (20).
5. The YOLOv 5-based self-localizing jet fire-extinguishing system as recited in claim 4 wherein: a water inlet pipe (1) is arranged at the position, close to the edge, of the top of the fixed disc (4), one end of the water inlet pipe (1) is communicated with the annular water storage tank (19), and an audible alarm (17) is installed in the middle of the top of the fixed disc (4).
6. The YOLOv 5-based self-localizing jet fire-extinguishing system as recited in claim 5 wherein: the bottom of the annular pipe (5) is close to the position fixedly connected with connecting rod (9) of the edge, the bottom fixedly connected with second branch (10) of connecting rod (9), the other end of second branch (10) is connected with the output of main part rotary driving device (16).
7. The YOLOv 5-based self-positioning jet fire suppression system of claim 6, wherein: a second rotary driving device (8) is installed on the side face of the supporting plate (7), and the output end of the second rotary driving device (8) is fixedly connected with one end of the rotating pipe (6).
8. The YOLOv 5-based self-localizing jet fire-extinguishing system as recited in claim 7 wherein: the upper end of the supporting plate (7) is provided with a limiting plate (14), and the limiting plate (14) corresponds to the rotating pipe (6).
9. The YOLOv 5-based self-localizing jet fire-extinguishing system as recited in claim 8 wherein: the bottom of the rotating pipe (6) is fixedly connected with a positioning device (12) below the spray head (13).
10. The YOLOv 5-based self-localizing jet fire-extinguishing system as recited in claim 9 wherein: the bottom of the annular pipe (5) is fixedly connected with a water delivery pipe (15) close to the edge, the other end of the water delivery pipe (15) is connected with the rotating pipe (6), and the rotating pipe (6) is communicated with the inside of the annular pipe (5) through the water delivery pipe (15).
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| US20210049789A1 (en) * | 2019-08-16 | 2021-02-18 | Deep Seek Labs, Inc. | Flame finding with automated image analysis |
| CN114425133A (en) * | 2022-02-09 | 2022-05-03 | 吕德生 | Indoor flame autonomous inspection and fire extinguishing method |
| CN114821778A (en) * | 2022-04-22 | 2022-07-29 | 中国农业大学 | Underwater fish body posture dynamic recognition method and device |
| CN114984496A (en) * | 2022-02-28 | 2022-09-02 | 上海应用技术大学 | Local area fixed-point fire extinguishing device and positioning method thereof |
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- 2022-10-24 CN CN202211300106.4A patent/CN115645796A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210049789A1 (en) * | 2019-08-16 | 2021-02-18 | Deep Seek Labs, Inc. | Flame finding with automated image analysis |
| CN114425133A (en) * | 2022-02-09 | 2022-05-03 | 吕德生 | Indoor flame autonomous inspection and fire extinguishing method |
| CN114984496A (en) * | 2022-02-28 | 2022-09-02 | 上海应用技术大学 | Local area fixed-point fire extinguishing device and positioning method thereof |
| CN114821778A (en) * | 2022-04-22 | 2022-07-29 | 中国农业大学 | Underwater fish body posture dynamic recognition method and device |
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Application publication date: 20230131 |