Plateau weak fire source detection system and method, electronic equipment and storage medium

Abstract

The invention relates to the technical field of fire source detection, in particular to a plateau weak fire source detection system and method, electronic equipment and a storage medium. The system comprises an ultraviolet camera, an infrared camera, a visible light camera and a signal processing unit, wherein the signal processing unit is respectively in communication connection with the ultraviolet camera, the infrared camera and the visible light camera; the ultraviolet camera is used for collecting ultraviolet image information of a preset target object, the infrared camera is used for collecting infrared image information of the preset target object, the visible light camera is used for collecting visible light image information of the preset target object, and the signal processing unit is used for receiving the ultraviolet image information, the infrared image information and the visible light image information. And the ultraviolet image information, the infrared image information and the visible light image information are calculated according to a preset algorithm built in the signal processing unit so as to obtain fire information.

Description

Technical Field

[0001] The present invention relates to the technical field of fire source detection, and in particular to a plateau weak fire source detection system, method, electronic equipment and storage medium. Background Art

[0002] With the rapid development of the field of drone-borne detection, small, high-precision detection systems used in complex scene environments are increasingly attracting attention from various industries. In order to cope with the identification of dangerous sources under the cold, dry, and large-scale conditions of complex plateau environments, mountains, and grasslands, especially the monitoring of weak fire sources in the early stages of fires, to prevent fires from occurring.

[0003] Based on this, there is an urgent need for a plateau weak fire source detection system, method, electronic equipment and storage medium to solve the technical problem of how to provide early warning for fires in plateau environments. Summary of the invention

[0004] In order to solve the technical problem of how to provide early warning for fire in a plateau environment, the embodiments of the present invention provide a plateau weak fire source detection system, method, electronic device and storage medium.

[0005] In a first aspect, an embodiment of the present invention provides a plateau weak fire source detection system, the system is applied to a drone, the system comprises an ultraviolet camera, an infrared camera, a visible light camera and a signal processing unit, the signal processing unit is respectively connected to the ultraviolet camera, the infrared camera and the visible light camera for communication;

[0006] The ultraviolet camera is used to collect ultraviolet image information of a preset target object and send the ultraviolet image information to the signal processing unit;

[0007] The infrared camera is used to collect infrared image information of the preset target object and send the infrared image information to the signal processing unit;

[0008] The visible light camera is used to collect visible light image information of the preset target object and send the visible light image information to the signal processing unit;

[0009] The signal processing unit is used to receive the ultraviolet image information, the infrared image information and the visible light image information, and calculate the ultraviolet image information, the infrared image information and the visible light image information according to a preset algorithm built into the signal processing unit to obtain fire information.

[0010] In a second aspect, an embodiment of the present invention further provides a method for detecting a weak fire source in a plateau, comprising:

[0011] The plateau weak fire source detection system is used to predict the fire conditions of preset targets and obtain fire information.

[0012] In a third aspect, an embodiment of the present invention further provides a memory, wherein the memory is used to store acquired original images and compressed images for subsequent analysis and research.

[0013] In a fourth aspect, an embodiment of the present invention further provides a readable storage medium having a computer program stored thereon, which, when executed in a computer, causes the computer to execute the method described in any embodiment of the present invention.

[0014] The embodiment of the present invention provides a plateau weak fire source detection system, method, electronic device and storage medium, the system is composed of an ultraviolet camera, an infrared camera, a visible light camera and a signal processing unit, wherein the signal processing unit is respectively connected to the ultraviolet camera, the infrared camera and the visible light camera. The ultraviolet camera is responsible for collecting ultraviolet image information of a preset target object and then transmitting it to the signal processing unit. In the complex environment of the plateau, weak fire sources often present special radiation characteristics in the ultraviolet band. The ultraviolet camera can accurately capture image information related to these characteristics, which is of great significance for early detection of fire sources. The infrared camera is used to collect infrared image information of the preset target object and send it to the signal processing unit. Since the fire source generates heat, there is an obvious signal in the infrared band. The infrared camera can keenly perceive this thermal radiation signal, and even if the fire source is in an extremely weak state, it can be reflected through infrared image information. The function of the visible light camera is to collect visible light image information of the preset target object and then transmit it to the signal processing unit. The visible light image can provide more intuitive and rich visual information for fire judgment, and complement the ultraviolet image information and infrared image information. After receiving the image information from the ultraviolet camera, infrared camera and visible light camera, the signal processing unit performs comprehensive calculations on the information based on its built-in preset algorithm to obtain accurate fire information, which provides a key basis for subsequent fire fighting operations or fire monitoring. This solves the technical problem of how to provide early warning for fires in plateau environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a structural diagram of a plateau weak fire source detection system provided by an embodiment of the present invention;

[0017] Figure 2This is a flow chart of a plateau weak fire source detection method provided by an embodiment of the present invention;

[0018] Figure 3 This is a workflow diagram of a plateau weak fire source detection system provided by an embodiment of the present invention;

[0019] Figure 4 It is a schematic diagram of a plateau weak fire source detection system provided by an embodiment of the present invention;

[0020] Figure 5 It is a schematic diagram of a display control interface provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] Please refer to Figure 1 , an embodiment of the present invention provides a plateau weak fire source detection system, the system is used for a drone, the system includes an ultraviolet camera 100, an infrared camera 102, a visible light camera 104 and a signal processing unit 106, the signal processing unit 106 is respectively connected to the ultraviolet camera 100, the infrared camera 102 and the visible light camera 104 for communication;

[0023] The ultraviolet camera 100 is used to collect ultraviolet image information of a preset target object and send the ultraviolet image information to the signal processing unit 106;

[0024] The infrared camera 102 is used to collect infrared image information of a preset target object and send the infrared image information to the signal processing unit 106;

[0025] The visible light camera 104 is used to collect visible light image information of a preset target object and send the visible light image information to the signal processing unit 106;

[0026] The signal processing unit 106 is used to receive ultraviolet image information, infrared image information and visible light image information, and calculate the ultraviolet image information, infrared image information and visible light image information according to a preset algorithm built into the signal processing unit 106 to obtain fire information.

[0027] In the embodiment of the present invention, the system is composed of an ultraviolet camera 100, an infrared camera 102, a visible light camera 104 and a signal processing unit 106, wherein the signal processing unit 106 is respectively connected to the ultraviolet camera 100, the infrared camera 102 and the visible light camera 104. The ultraviolet camera 100 is responsible for collecting ultraviolet image information of a preset target object and then transmitting it to the signal processing unit 106. In the complex environment of the plateau, weak fire sources often present special radiation characteristics in the ultraviolet band. The ultraviolet camera 100 can accurately capture image information related to these characteristics, which is of great significance for early detection of fire sources. The infrared camera 102 is used to collect infrared image information of the preset target object and send it to the signal processing unit 106. Since the fire source generates heat and has obvious signals in the infrared band, the infrared camera 102 can keenly perceive this thermal radiation signal, and even if the fire source is in an extremely weak state, it can be reflected through infrared image information. The function of the visible light camera 104 is to collect visible light image information of the preset target object and then transmit it to the signal processing unit 106. Visible light images can provide more intuitive and rich visual information for fire judgment, and complement ultraviolet image information and infrared image information. After receiving image information from the ultraviolet camera 100, the infrared camera 102 and the visible light camera 104, the signal processing unit 106 performs comprehensive calculations on these information according to its built-in preset algorithm, thereby obtaining accurate fire information, which provides a key basis for subsequent fire fighting operations or fire monitoring. This solves the technical problem of how to provide early warning for fires in plateau environments.

[0028] In the embodiment of the present invention, the ultraviolet camera mainly realizes the long-distance detection of weak fire sources. In order to ensure the detection distance and detection accuracy, the following design indicators are selected. The resolution is 640×480, the field of view is 24° horizontally and 18° vertically, the detection distance is not less than 200m, and the focal length is 28mm. Visible light mainly includes a visible light camera and an optical zoom lens. The visible light camera design adopts LVDS output to ensure the real-time performance of image output. The design uses a 10x optical zoom all-in-one machine, which supports 10x optical autofocus. Uncooled infrared movement components, with a 35m fixed-focus lens (field of view 24.6°×19.8°), use a long-wave infrared detector with a pixel size of 12μm and an array scale of 1280×1024; support a variety of serial communication and video output interfaces.

[0029] In one embodiment of the present invention, the system further includes a laser rangefinder, and a communication connection is established between the laser rangefinder and the signal processing unit 106. The main function of the laser rangefinder is to accurately collect the distance between the preset target object and the drone. In the process of plateau fire source detection, accurately knowing the distance between the target object and the drone plays a vital role in determining the location of the fire source, planning the flight path, and improving the detection accuracy. For example, after the laser rangefinder obtains the distance data, the signal processing unit 106 can combine the image information collected by other cameras to more accurately analyze the fire source situation, and at the same time better ensure that the drone performs the detection task within the appropriate distance range, avoiding the detection effect or safety problems caused by the distance being too close or too far.

[0030] In the embodiment of the present invention, the laser rangefinder uses SR1200, which adopts an aviation aluminum alloy structure and a glass lens. The product relies on the advantages of high damage threshold coating technology, erbium glass laser, and 905nm ranging technology to achieve a weight of only 10g, an impact resistance level of 1200g, and a maximum measurement range of 1200m.

[0031] In one embodiment of the present invention, the system is also provided with a power supply and distribution management part, which establishes communication connections and electrical connections with the signal processing unit 106, the ultraviolet camera 100, the infrared camera 102, and the visible light camera 104. Power supply and distribution management plays a key role in the entire system, and its main function is to accurately control the power supply of the ultraviolet camera 100, the infrared camera 102, and the visible light camera 104. In the fire source detection operation under the plateau environment, stable and reasonable power supply control is essential. Through power supply and distribution management, it can be ensured that each camera can obtain a stable and sufficient power supply when it needs to work, avoiding failures due to power problems or affecting its normal operation. For example, when the system is started or in a specific working mode, the power supply and distribution management can power the camera according to the preset strategy to ensure the smooth development of the fire source detection work; when the system is on standby or some cameras do not need to work temporarily, it can effectively cut off unnecessary power supply, save energy, and extend the overall service life of the equipment.

[0032] In one embodiment of the present invention, the preset algorithm is a fusion decision algorithm. This fusion decision algorithm plays a vital role in the entire plateau weak fire source detection system. It can efficiently and accurately process the image information from the ultraviolet camera 100, the infrared camera 102 and the visible light camera 104. In the fusion decision process, the algorithm will fully consider the characteristics of the image information of each camera. For ultraviolet image information, it will extract the characteristic data about the potential fire source in the ultraviolet band; for infrared image information, the algorithm will focus on the characteristics related to thermal radiation, which are the key elements for judging the existence and intensity of the fire source; for visible light image information, it will use its rich visual features such as color and texture. By deeply fusing and analyzing the image information obtained by these three different types of cameras, the fusion decision algorithm can judge the fire information more comprehensively and accurately, effectively reduce the occurrence of misjudgment, and thus detect weak fire sources in a timely and reliable manner in the complex environment of the plateau.

[0033] In one embodiment of the present invention, the signal processing unit 106 includes a communication module. The communication module establishes communication connections with the ultraviolet camera 100, the infrared camera 102, the visible light camera 104, the power supply and distribution management, and the laser rangefinder. The main function of the communication module is to receive ultraviolet image information from the ultraviolet camera 100, the infrared image information from the infrared camera 102, and the visible light image information from the visible light camera 104. During the operation of the entire plateau weak fire source detection system, the communication module is like an information hub, ensuring the information interaction between various key components. For example, when the ultraviolet camera 100 captures the ultraviolet image information of the preset target object, the communication module can quickly and stably receive this information, providing data support for the subsequent fusion decision algorithm processing. Similarly, the communication module can also accurately receive the image information transmitted by the infrared camera 102 and the visible light camera 104, ensuring that the system can comprehensively and timely obtain the relevant data of the target object, thereby laying a solid foundation for accurately judging the fire information. Moreover, the connection between the communication module and the power supply and distribution management and the laser rangefinder also makes the system more efficient and reliable in power control and distance measurement data transmission.

[0034] In one embodiment of the present invention, the signal processing unit 106 also includes a data processing module. The data processing module undertakes the core data calculation function in the entire system. On the one hand, the data processing module is used to build in a preset algorithm, where the algorithm is a fusion decision algorithm. On the other hand, it is responsible for receiving ultraviolet image information, infrared image information, and visible light image information from the communication module. After receiving these image information from different cameras, the data processing module calculates them according to the preset fusion decision algorithm. During the calculation process, the features in each image information are fully mined and analyzed, such as specific band features in ultraviolet images, thermal radiation features in infrared images, and visual features in visible light images. Through comprehensive consideration and calculation of these features, the data processing module finally obtains accurate fire information, provides a key basis for subsequent decision-making and response measures, and ensures that the fire situation can be judged efficiently and accurately in the detection of weak fire sources on the plateau.

[0035] In one embodiment of the present invention, the signal processing unit 106 also includes a storage module. The storage module is specifically used to receive ultraviolet image information, infrared image information and visible light image information transmitted by the communication module. After these image information are transmitted from each camera via the communication module, the storage module will save them intact. On the one hand, it can provide data backup for the calculation of the data processing module. For example, during the data processing process, if the image information needs to be rechecked or analyzed again, the data in the storage module can be called at any time. On the other hand, the stored image information is helpful for the subsequent review and study of the fire detection situation. By reviewing the stored image information at different times, it is possible to analyze the development trend of the fire source and judge the performance of the detection system under different circumstances, thereby providing a strong basis for the optimization and improvement of the system.

[0036] like Figure 2 , Figure 4As shown, in the embodiment of the present invention, the signal processing unit mainly completes the collection, compression and processing functions of the three light images of visible light, infrared and ultraviolet, realizes the communication control of visible light, infrared, ultraviolet, laser and servo, has the power supply function of infrared, laser and servo control board, has the image and status information uploading function, and has the target recognition and tracking function. The servo system consists of three degrees of freedom, namely the azimuth axis, pitch axis and roll axis, and the extension lines of the three axis centers are perpendicular to each other. The photoelectric load is installed in a closed sphere and directly connected to the pitch axis. The software runs on the core processing board (data processing module) of the signal processing unit, adopts visible light and infrared video streams, ultraviolet PAL video streams, visible light / infrared human and vehicle target detection and recognition and tracking target miss output, ultraviolet image filtering and noise reduction processing, fire source target extraction, video stream encoding, RTSP video stream transmission, and equipment control. The display and control software mainly serves the ground emergency rescue command display and control service. It includes four areas: visible light image display, infrared image display, ultraviolet fire source target display, and signal processing unit and camera operation status display.

[0037] In the embodiment of the present invention, the servo system adopts a three-axis three-frame system. The system consists of three degrees of freedom, namely, the azimuth axis, the pitch axis and the roll axis, and the extension lines of the three axis centers are perpendicular to each other. The photoelectric load is installed in a closed sphere and directly connected to the pitch axis. The integrated motor assembly is adopted to realize the miniaturized photoelectric pod servo system and structural design. The miniaturized design of the servo system with high precision and fast response requirements is solved.

[0038] In the embodiment of the present invention, the method of combining different lens coatings of the optical system with the corresponding designed filters realizes the high resolution and mass filtering of the domestic sunlight ultraviolet detection imaging system under the Tibetan plateau environment. Specific ions are added to the crystal to adjust the absorption curve of the spectrum, and several ions that can absorb the visible light band are selected. After multiple verifications, two metal ions are selected to fully absorb the signals in the visible light and infrared bands. The filter material is designed with a superposition of multiple layers of organic films and metal films, and its transmittance can reach more than 30%.

[0039] like Figure 5 As shown, in the embodiment of the present invention, the blue and green boxes in the figure are the places where fire occurs.

[0040] The information interaction, execution process and other contents between the modules in the above-mentioned system are based on the same concept as the embodiment of the method of the present invention. For the specific contents, please refer to the description in the embodiment of the method of the present invention, and no further description is given here.

[0041] The embodiment of the present invention also provides a method for detecting weak fire sources in plateaus, which mainly includes the following step S300.

[0042] Step S300: Use the plateau weak fire source detection system to predict the fire condition of the preset target object and obtain fire information.

[0043] An embodiment of the present invention further provides an electronic device, including a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, a plateau weak fire source detection method in any embodiment of the present invention is implemented.

[0044] An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the processor executes a plateau weak fire source detection method in any embodiment of the present invention.

[0045] Specifically, a system or device equipped with a storage medium can be provided, on which software program codes that implement the functions of any of the above-mentioned embodiments are stored, and a computer (or CPU or MPU) of the system or device can be enabled to read and execute the program codes stored in the storage medium.

[0046] In this case, the program code itself read from the storage medium can realize the function of any one of the above-mentioned embodiments, and thus the program code and the storage medium storing the program code constitute a part of the present invention.

[0047] The storage medium embodiments for providing the program code include a floppy disk, a hard disk, a magneto-optical disk, an optical disk (such as CD-ROM, CD-R, CD-RW, DVD-ROM, DVD-RAM, DVD-RW, DVD+RW), a magnetic tape, a non-volatile memory card, and a ROM. Alternatively, the program code can be downloaded from a server computer by a communication network.

[0048] In addition, it should be clear that the functions of any of the above embodiments can be implemented not only by executing the program code read by the computer, but also by enabling an operating system operating on the computer to complete part or all of the actual operations based on instructions from the program code.

[0049] In addition, it can be understood that the program code read from the storage medium is written to a memory provided in an expansion board inserted into the computer or to a memory provided in an expansion module connected to the computer, and then based on the instructions of the program code, a CPU installed on the expansion board or expansion module is enabled to perform part or all of the actual operations, thereby realizing the functions of any of the above-mentioned embodiments.

[0050] It should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0051] A person of ordinary skill in the art can understand that all or part of the steps of implementing the above method embodiments can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it executes the steps of the above method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk, etc., various media that can store program codes.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A plateau weak fire source detection system, characterized in that: The system is applied to a drone, and comprises an ultraviolet camera, an infrared camera, a visible light camera and a signal processing unit, wherein the signal processing unit is respectively connected to the ultraviolet camera, the infrared camera and the visible light camera for communication; The ultraviolet camera is used to collect ultraviolet image information of a preset target object and send the ultraviolet image information to the signal processing unit; The infrared camera is used to collect infrared image information of the preset target object and send the infrared image information to the signal processing unit; The visible light camera is used to collect visible light image information of the preset target object and send the visible light image information to the signal processing unit; The signal processing unit is used to receive the ultraviolet image information, the infrared image information and the visible light image information, and calculate the ultraviolet image information, the infrared image information and the visible light image information according to a preset algorithm built into the signal processing unit to obtain fire information.

2. The system according to claim 1, characterized in that The system includes a laser rangefinder; The laser rangefinder is communicatively connected with the signal processing unit; The laser rangefinder is used to collect the distance between the preset target object and the drone.

3. The system according to claim 2, characterized in that The system includes a power supply and distribution management, and the power supply and distribution management is respectively communicatively connected and electrically connected with the signal processing unit and respectively with the ultraviolet camera, the infrared camera and the visible light camera; The power supply and distribution management is used to control the power supply to the ultraviolet camera, the infrared camera and the visible light camera.

4. The system according to claim 3, characterized in that Also includes: The preset algorithm is a fusion decision algorithm.

5. The system according to claim 4, characterized in that The signal processing unit includes a communication module; The communication module is communicatively connected with the ultraviolet camera, the infrared camera, the visible light camera, the power supply and distribution management, and the laser rangefinder; The communication module is used to receive the ultraviolet image information, the infrared image information and the visible light image information sent by the ultraviolet camera, the infrared camera and the visible light camera.

6. The system according to claim 5, characterized in that The signal processing unit includes a data processing module; The data processing module is used to embed the preset algorithm; Used to receive the ultraviolet image information, the infrared image information and the visible light image information sent by the communication module, and calculate the ultraviolet image information, the infrared image information and the visible light image information according to the preset algorithm to obtain the fire information.

7. The system according to claim 6, characterized in that The signal processing unit includes a storage module; The storage module is used to receive the ultraviolet image information, the infrared image information and the visible light image information sent by the communication module, and store the ultraviolet image information, the infrared image information and the visible light image information.

8. A method for detecting weak fire sources in plateau, characterized in that: The method comprises: The system described in any one of claims 1 to 7 is used to predict the fire condition of a preset target object and obtain fire condition information.

9. An electronic device, characterized in that: The method comprises a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, the method as claimed in claim 8 is implemented.

10. A computer-readable storage medium, characterized in that: A computer program is stored thereon, and when the computer program is executed in a computer, the computer is caused to execute the method described in claim 8.

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