Power grid risk management method and system based on image data

Abstract

The invention provides a power grid risk management method and system based on image data, and belongs to the technical field of image processing, by processing an actual monitoring picture, when a frame of highlight image such as spark or arc appears in the actual monitoring picture, the highlight image in the images displayed by the monitoring picture can be reserved and exceeds the time of one frame, so that the risk management efficiency is improved. The problem that the monitoring personnel watching the monitoring video misses watching due to the fact that the highlight image disappears too fast is avoided.

Description

Technical Field

[0001] The present application relates to the field of image processing, and in particular to a power grid risk management method and system based on image data. Background Art

[0002] In modern power systems, the stable operation of the power grid is crucial to the normal operation of the social economy. Traditional power grid risk management mainly relies on manual inspections and sensor data, but these methods are inefficient, costly, and difficult to cover all areas. In the process of power grid risk management, video monitoring to determine whether there are equipment anomalies has always been one of the important means.

[0003] When an abnormality occurs in the power system equipment, high-brightness images such as arcs and sparks may appear. However, since these images appear instantaneously, they may only exist in a certain frame of the actual image in the monitoring device. The monitoring personnel may miss them when viewing the monitoring images, which poses certain safety risks. Summary of the invention

[0004] The present application provides a power grid risk management method and system based on image data to improve the above-mentioned problems.

[0005] In order to achieve the above objectives, this application adopts the following technical solutions: In a first aspect, an embodiment of the present application proposes a power grid risk management method based on image data, which is applicable to a power grid risk management system, the system including a visual terminal and a control terminal for obtaining a monitoring screen of a power grid device, and the method includes: The control terminal obtains the i-th frame of video in the monitoring period based on the visual terminal, where i is a natural number greater than or equal to 3; The control terminal fuses the in-th frame video picture with the i+n-th frame video picture, and obtains a first target picture according to the result of the picture fusion, wherein the picture fusion process includes retaining the highlighted picture in the in-th frame video picture and the i+n-th frame video picture; The control terminal uses the i-th frame of the video picture to correct the first target picture, and obtains the corrected second target picture, wherein the correction process is to correct the average brightness of the first target picture to the average brightness of the i-th frame of the video picture; When i=3, 4, 5...n, the control terminal acquires n-2 second target pictures in total, and constructs the n-2 second target pictures into continuous video pictures according to the time axis.

[0006] In combination with the first aspect, optionally, the method further includes: The control terminal uses the i-th frame video picture to correct the first target picture and obtains the corrected second target picture, wherein the correction process is to correct the average picture contrast of the first target picture to the average picture contrast of the i-th frame video picture.

[0007] In combination with the first aspect, optionally, the method further includes: The control terminal uses the i-th frame of the video picture to correct the first target picture and obtains the corrected second target picture, wherein the correction process is to correct the average grayscale of the first target picture to the average grayscale of the i-th frame of the video picture.

[0008] In combination with the first aspect, optionally, the control terminal fuses the in-th frame video picture with the i+n-th frame video picture, and obtains a first target picture according to the result of the picture fusion, wherein the picture fusion process includes retaining a highlighted picture in the in-th frame video picture and the i+n-th frame video picture, including: The control terminal divides the in-th frame video picture so that the in-th frame video picture forms a plurality of first sub-pictures; The control terminal performs picture recognition on the plurality of first sub-pictures, and determines that a first sub-picture belonging to a characteristic picture among the plurality of first sub-pictures is a first target sub-picture, wherein the characteristic picture is a picture composed of highlighted pixels; The control terminal mosaics the plurality of first target sub-pictures into the i+nth frame of the video picture, so that the i+nth frame of the video picture forms the first target picture.

[0009] In combination with the first aspect, optionally, mosaicking a plurality of first target sub-pictures into the i+nth frame of the video picture so that the i+nth frame of the video picture forms the first target picture, includes: The control terminal divides the i+nth frame of the video picture so that the i+nth frame of the video picture forms a plurality of second sub-pictures, wherein one first sub-picture corresponds to one second sub-picture in a one-to-one manner; The control terminal obtains the average brightness value of each first target sub-picture and each second sub-picture, and compares the average brightness value of each first target sub-picture with the average brightness value of the second sub-picture corresponding to the first target sub-picture. If the average brightness value of a first target sub-picture is greater than the average brightness value of the second sub-picture corresponding to the first target sub-picture, the second sub-picture in the i+nth frame video picture is replaced by the first target sub-picture.

[0010] In combination with the first aspect, optionally, the system further includes a display terminal. When i=3, 4, 5...n, the control terminal acquires a total of n-2 second target pictures, and constructs the n-2 second target pictures into continuous video pictures according to the time axis, comprising: The control terminal controls the display terminal to display continuous video images.

[0011] In a second aspect, an embodiment of the present application proposes a power grid risk management system based on image data, the system comprising a visual terminal and a control terminal for obtaining a monitoring screen of a power grid device, and the method comprises: The control terminal obtains the i-th frame of video in the monitoring period based on the visual terminal, where i is a natural number greater than or equal to 3; The control terminal fuses the in-th frame video picture with the i+n-th frame video picture, and obtains a first target picture according to the result of the picture fusion, wherein the picture fusion process includes retaining the highlighted picture in the in-th frame video picture and the i+n-th frame video picture; The control terminal uses the i-th frame of the video picture to correct the first target picture, and obtains the corrected second target picture, wherein the correction process is to correct the average brightness of the first target picture to the average brightness of the i-th frame of the video picture; When i=3, 4, 5...n, the control terminal acquires n-2 second target pictures in total, and constructs the n-2 second target pictures into continuous video pictures according to the time axis.

[0012] In conjunction with the second aspect, optionally, the system is configured as: The control terminal uses the i-th frame video picture to correct the first target picture and obtains the corrected second target picture, wherein the correction process is to correct the average picture contrast of the first target picture to the average picture contrast of the i-th frame video picture.

[0013] In conjunction with the second aspect, optionally, the system is configured as: The control terminal uses the i-th frame of the video picture to correct the first target picture and obtains the corrected second target picture, wherein the correction process is to correct the average grayscale of the first target picture to the average grayscale of the i-th frame of the video picture.

[0014] In conjunction with the second aspect, optionally, the system is configured as: The control terminal fuses the in-th frame video picture with the i+n-th frame video picture, and obtains a first target picture according to the result of the picture fusion, wherein the picture fusion process includes retaining the highlighted picture in the in-th frame video picture and the i+n-th frame video picture, including: The control terminal divides the in-th frame video picture so that the in-th frame video picture forms a plurality of first sub-pictures; The control terminal performs picture recognition on the plurality of first sub-pictures, and determines that a first sub-picture belonging to a characteristic picture among the plurality of first sub-pictures is a first target sub-picture, wherein the characteristic picture is a picture composed of highlighted pixels; The control terminal mosaics the plurality of first target sub-pictures into the i+nth frame of the video picture, so that the i+nth frame of the video picture forms the first target picture.

[0015] In conjunction with the second aspect, optionally, the system is configured as: Mosaicing a plurality of first target sub-pictures into the i+nth frame of video picture so that the i+nth frame of video picture forms a first target picture, comprising: The control terminal divides the i+nth frame of the video picture so that the i+nth frame of the video picture forms a plurality of second sub-pictures, wherein one first sub-picture corresponds to one second sub-picture in a one-to-one manner; The control terminal obtains the average brightness value of each first target sub-picture and each second sub-picture, and compares the average brightness value of each first target sub-picture with the average brightness value of the second sub-picture corresponding to the first target sub-picture. If the average brightness value of a first target sub-picture is greater than the average brightness value of the second sub-picture corresponding to the first target sub-picture, the second sub-picture in the i+nth frame video picture is replaced by the first target sub-picture.

[0016] In conjunction with the second aspect, optionally, the system is configured as: The system also includes a display terminal. When i=3,4,5...n, the control terminal acquires a total of n-2 second target images and constructs the n-2 second target images into continuous video images according to the time axis, including: The control terminal controls the display terminal to display continuous video images.

[0017] A third aspect of the present invention provides an electronic device, the electronic device comprising: At least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the method proposed in the first aspect of the embodiment of the present invention.

[0018] A fourth aspect of the present invention provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the method provided in the first aspect of the embodiment of the present invention.

[0019] In summary, the above method and system have the following technical effects: The present application proposes a power grid risk management system based on image data. First, based on the visual terminal, the i-th frame of video in the monitoring cycle is obtained. Then, the in-th frame of video is fused with the i+n-th frame of video, and the first target image is obtained according to the result of the fusion. The fusion process includes retaining the highlighted images in the in-th frame of video and the i+n-th frame of video. Then, the i-th frame of video is used to correct the first target image and obtain the corrected second target image. The correction process is to correct the average brightness of the first target image to the average brightness of the i-th frame of video. When i=3,4,5...n, the control terminal obtains a total of n-2 second target images, and constructs the n-2 second target images into continuous video images according to the time axis. The present application proposes a power grid risk management system based on image data. By processing the actual monitoring image, when a frame of highlighted images such as sparks or arcs appears in the actual monitoring image, the highlighted image in the image displayed on the monitoring image can be retained and exceeds one frame time, avoiding the problem of missed images caused by the highlight images disappearing too quickly by the monitoring personnel watching the monitoring video. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of a flow chart of a power grid risk management method based on image data proposed in an embodiment of the present application. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] The present application embodiment proposes a power grid risk management method based on image data, which is applicable to a power grid risk management system, which includes a visual terminal and a control terminal for obtaining a monitoring screen of a power grid device, see Figure 1 , the method comprises the following steps: S101: The control terminal obtains the i-th video frame in the monitoring cycle based on the visual terminal, where i is a natural number greater than or equal to 3.

[0023] It can be understood that the visual terminal in this embodiment can be a camera, or can be some other detection equipment that performs image acquisition multiple times, which is not limited in this embodiment.

[0024] S102: The control terminal fuses the inth frame video picture with the i+n frame video picture, and obtains a first target picture according to the result of the picture fusion, wherein the picture fusion process includes retaining the highlighted pictures in the inth frame video picture and the i+n frame video picture.

[0025] It can be understood that in this embodiment, a video screen is first selected, and then the previous image and the next image of the video screen are fused, so that in the fused screen, the highlight problem that appears in a single frame will also be retained in multiple frames in the actually displayed video. As an implementation method, in this application, pixels with higher brightness can be directly selected, and discrete pixels with higher brightness can be superimposed together to make the final result more eye-catching.

[0026] Specifically, as an implementation method, the following method may be used: S1021: The control terminal divides the in-th frame video picture so that the in-th frame video picture forms a plurality of first sub-pictures.

[0027] It is understandable that in the process of image recognition, image segmentation is a basic step. In this embodiment, the size of the first sub-image should be as small as possible to make the image recognition more accurate. Of course, the size of the first sub-image is limited by the processing power of the processing device in actual situations, and the specific parameters are not limited in this application.

[0028] S1022: The control terminal performs picture recognition on the multiple first sub-pictures, and determines that a first sub-picture belonging to a characteristic picture among the multiple first sub-pictures is a first target sub-picture, wherein the characteristic picture is a picture composed of highlighted pixels; S1023: The control terminal mosaics the plurality of first target sub-pictures into the (i+n)th frame of the video picture, so that the (i+n)th frame of the video picture forms the first target picture.

[0029] It can be understood that the i+nth frame video screen is segmented so that the i+nth frame video screen forms multiple second sub-screens, wherein a first sub-screen corresponds to a second sub-screen one-to-one, and the control terminal obtains the average brightness value of each first target sub-screen and each second sub-screen, and compares the average brightness value of each first target sub-screen with the average brightness value of the second sub-screen corresponding to the first target sub-screen. If the average brightness value of a first target sub-screen is greater than the average brightness value of the second sub-screen corresponding to the first target sub-screen, the second sub-screen in the i+nth frame video screen is replaced with the first target sub-screen. In this way, image fusion can be achieved.

[0030] S103: The control terminal uses the i-th frame video picture to correct the first target picture, and obtains the corrected second target picture, wherein the correction process is to correct the average brightness of the first target picture to the average brightness of the i-th frame video picture.

[0031] It can be understood that, due to the process of pixel superposition, the grayscale value of the superimposed image will inevitably result in a lower grayscale value and a higher contrast value than the original image. In order to enable the superimposed image to retain the grayscale value or contrast value corresponding to the original image, or to be closer to the contrast value or grayscale value in the original image, the superimposed image can optionally be calibrated using the grayscale value and contrast value of the second target image.

[0032] Optionally, based on the same reason, the control terminal uses the i-th frame video picture to correct the first target picture and obtains the corrected second target picture, wherein the correction process is to correct the average picture contrast of the first target picture to the average picture contrast of the i-th frame video picture.

[0033] Optionally, based on the same reason, the control terminal uses the i-th frame video picture to correct the first target picture and obtains the corrected second target picture, wherein the correction process is to correct the average grayscale of the first target picture to the average grayscale of the i-th frame video picture.

[0034] S104: When i=3, 4, 5 . . . n, the control terminal acquires n-2 second target pictures in total, and constructs the n-2 second target pictures into continuous video pictures according to the time axis.

[0035] It can be understood that, specifically, in this embodiment, when n=2, the first and third images are superimposed, when n is equal to 3, the second and fourth images are superimposed, and so on. In this way, when there are i frames in the video image, n-2 superimposed images can be obtained, that is, a video image delayed by 2 frames can be formed, and the highlight image in this video image can be retained for multiple frames for display, which is convenient for video surveillance personnel to monitor.

[0036] Optionally, in some embodiments, the system further comprises a display terminal for displaying monitoring images. It can be understood that the control terminal controls the display terminal to display continuous video images.

[0037] The embodiment of the present application proposes a power grid risk management method based on image data. First, based on a visual terminal, the i-th frame of video in a monitoring cycle is obtained. Then, the in-th frame of video is fused with the i+n-th frame of video, and a first target image is obtained according to the result of the image fusion. The image fusion process includes retaining the highlighted images in the in-th frame of video and the i+n-th frame of video. Then, the i-th frame of video is used to correct the first target image, and a corrected second target image is obtained. The correction process is to correct the average brightness of the first target image to the average brightness of the i-th frame of video. When i=3,4,5...n, the control terminal obtains a total of n-2 second target images, and constructs the n-2 second target images into continuous video images according to the time axis. An image data-based power grid risk management method proposed in an embodiment of the present application processes the actual monitoring screen. When a frame of highlighted images such as sparks or arcs appears in the actual monitoring screen, the highlighted image in the image displayed on the monitoring screen can be retained for more than one frame, thereby avoiding the problem of monitoring personnel watching the monitoring video missing the highlighted image due to the highlighted image disappearing too quickly.

[0038] Based on the same inventive concept, the embodiment of the present application proposes a power grid risk management system based on image data, which includes a visual terminal and a control terminal for obtaining a monitoring screen of a power grid device, and is used to execute the following method: The control terminal obtains the i-th frame of video in the monitoring period based on the visual terminal, where i is a natural number greater than or equal to 3; The control terminal fuses the in-th frame video picture with the i+n-th frame video picture, and obtains a first target picture according to the result of the picture fusion, wherein the picture fusion process includes retaining the highlighted picture in the in-th frame video picture and the i+n-th frame video picture; The control terminal uses the i-th frame of the video picture to correct the first target picture, and obtains the corrected second target picture, wherein the correction process is to correct the average brightness of the first target picture to the average brightness of the i-th frame of the video picture; When i=3, 4, 5...n, the control terminal acquires n-2 second target pictures in total, and constructs the n-2 second target pictures into continuous video pictures according to the time axis.

[0039] Optionally, the system may also perform the following method: The control terminal uses the i-th frame video picture to correct the first target picture and obtains the corrected second target picture, wherein the correction process is to correct the average picture contrast of the first target picture to the average picture contrast of the i-th frame video picture.

[0040] Optionally, the system may also perform the following method: The control terminal uses the i-th frame of the video picture to correct the first target picture and obtains the corrected second target picture, wherein the correction process is to correct the average grayscale of the first target picture to the average grayscale of the i-th frame of the video picture.

[0041] Optionally, the system may also perform the following method: The control terminal fuses the in-th frame video picture with the i+n-th frame video picture, and obtains a first target picture according to the result of the picture fusion, wherein the picture fusion process includes retaining the highlighted picture in the in-th frame video picture and the i+n-th frame video picture, including: The control terminal divides the in-th frame video picture so that the in-th frame video picture forms a plurality of first sub-pictures; The control terminal performs picture recognition on the plurality of first sub-pictures, and determines that a first sub-picture belonging to a characteristic picture among the plurality of first sub-pictures is a first target sub-picture, wherein the characteristic picture is a picture composed of highlighted pixels; The control terminal mosaics the plurality of first target sub-pictures into the i+nth frame of the video picture, so that the i+nth frame of the video picture forms the first target picture.

[0042] Optionally, the system may also perform the following method: Mosaicing a plurality of first target sub-pictures into the i+nth frame of video picture so that the i+nth frame of video picture forms a first target picture, comprising: The control terminal divides the i+nth frame of the video picture so that the i+nth frame of the video picture forms a plurality of second sub-pictures, wherein one first sub-picture corresponds to one second sub-picture in a one-to-one manner; The control terminal obtains the average brightness value of each first target sub-picture and each second sub-picture, and compares the average brightness value of each first target sub-picture with the average brightness value of the second sub-picture corresponding to the first target sub-picture. If the average brightness value of a first target sub-picture is greater than the average brightness value of the second sub-picture corresponding to the first target sub-picture, the second sub-picture in the i+nth frame video picture is replaced by the first target sub-picture.

[0043] Optionally, the system may also perform the following method: The system also includes a display terminal. When i=3,4,5...n, the control terminal acquires a total of n-2 second target images and constructs the n-2 second target images into continuous video images according to the time axis, including: The control terminal controls the display terminal to display continuous video images.

[0044] An embodiment of the present application proposes a power grid risk management system based on image data. First, based on a visual terminal, the i-th frame of video in a monitoring cycle is obtained. Then, the in-th frame of video is fused with the i+n-th frame of video, and a first target image is obtained according to the result of the image fusion. The image fusion process includes retaining the highlighted images in the in-th frame of video and the i+n-th frame of video. Then, the i-th frame of video is used to correct the first target image, and a corrected second target image is obtained. The correction process is to correct the average brightness of the first target image to the average brightness of the i-th frame of video. When i=3,4,5...n, the control terminal obtains a total of n-2 second target images, and constructs the n-2 second target images into continuous video images according to the time axis. An image data-based power grid risk management system proposed in an embodiment of the present application processes the actual monitoring screen. When a frame of highlighted images such as sparks or arcs appears in the actual monitoring screen, the highlighted image in the image displayed on the monitoring screen can be retained for more than one frame, thereby avoiding the problem of monitoring personnel watching the monitoring video missing the highlighted image due to the highlighted image disappearing too quickly.

[0045] Based on the same inventive concept, an embodiment of the present application further proposes an electronic device, the electronic device comprising: At least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the image data-based power grid risk management method of an embodiment of the present application.

[0046] In addition, to achieve the above-mentioned purpose, an embodiment of the present application further proposes a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the image data-based power grid risk management method of an embodiment of the present application.

[0047] The following is a detailed introduction to the various components of electronic equipment: The processor is the control center of the electronic device, which can be a processor or a general term for multiple processing elements. For example, the processor is one or more central processing units (CPUs), or an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present invention, such as one or more microprocessors (digital signal processors, DSPs), or one or more field programmable gate arrays (FPGAs).

[0048] Optionally, the processor can perform various functions of the electronic device by running or executing a software program stored in the memory, and calling data stored in the memory.

[0049] The memory is used to store the software program for executing the solution of the present invention, and the execution is controlled by the processor. The specific implementation method can refer to the above method embodiment and will not be repeated here.

[0050] Optionally, the memory may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto. The memory may be integrated with the processor, or may exist independently and be coupled to the processor through an interface circuit of the electronic device, which is not specifically limited in the embodiments of the present invention.

[0051] A transceiver is used to communicate with a network device or a terminal device.

[0052] Optionally, the transceiver may include a receiver and a transmitter, wherein the receiver is used to implement a receiving function, and the transmitter is used to implement a sending function.

[0053] Optionally, the transceiver may be integrated with the processor, or may exist independently and be coupled to the processor via an interface circuit of the router, which is not specifically limited in the embodiment of the present invention.

[0054] In addition, the technical effects of the electronic device can refer to the technical effects of the data transmission method in the above method embodiment, which will not be repeated here.

[0055] It should be understood that the processor in the embodiment of the present invention may be a central processing unit (CPU), and the processor may also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0056] It should also be understood that the memory in the embodiments of the present invention may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of random access memory (RAM) are available, such as static RAM (SRAM), dynamic random access memory (DRAM), synchronous DRAM (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link DRAM (SLDRAM), and direct rambus RAM (DR RAM).

[0057] The above embodiments can be implemented in whole or in part by software, hardware (such as circuits), firmware or any other combination. When implemented by software, the above embodiments can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, the process or function described in the embodiment of the present invention is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center by wired (such as infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that contains one or more available media sets. The available medium can be a magnetic medium (for example, a floppy disk, a hard disk, a tape), an optical medium (for example, a DVD), or a semiconductor medium. The semiconductor medium can be a solid-state hard disk.

[0058] It should be understood that the term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. A and B can be singular or plural. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship, but it may also indicate an "and / or" relationship. Please refer to the context for specific understanding.

[0059] In the present invention, "at least one" means one or more, and "plurality" means two or more. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple.

[0060] It should be understood that in various embodiments of the present invention, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0061] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

Claims

1. A power grid risk management method based on image data, characterized in that: Applicable to a power grid risk management system, the system includes a visual terminal and a control terminal for obtaining a monitoring screen of a power grid device, and the method includes: The control terminal acquires the i-th frame of video in the monitoring period based on the visual terminal, where i is a natural number greater than or equal to 3; The control terminal fuses the video picture of the inth frame with the video picture of the i+n frame, and obtains a first target picture according to the result of the picture fusion, wherein the picture fusion process includes retaining the highlighted picture in the video picture of the inth frame and the video picture of the i+n frame; The control terminal uses the i-th frame of the video picture to correct the first target picture, and obtains the corrected second target picture, wherein the correction process is to correct the average picture brightness of the first target picture to the average picture brightness of the i-th frame of the video picture; When i=3, 4, 5...n, the control terminal acquires n-2 second target pictures in total, and constructs the n-2 second target pictures into continuous video pictures according to the time axis.

2. The method for power grid risk management based on image data according to claim 1, characterized in that: The method further comprises: The control terminal uses the i-th frame of the video picture to correct the first target picture and obtains the corrected second target picture, wherein the correction process is to correct the average picture contrast of the first target picture to the average picture contrast of the i-th frame of the video picture.

3. The method for power grid risk management based on image data according to claim 1, characterized in that: The method further comprises: The control terminal uses the i-th frame of the video picture to correct the first target picture and obtains the corrected second target picture, wherein the correction process is to correct the average grayscale of the first target picture to the average grayscale of the i-th frame of the video picture.

4. A power grid risk management method based on image data according to any one of claims 1 to 3, characterized in that: The control terminal fuses the video picture of the inth frame with the video picture of the i+nth frame, and obtains a first target picture according to the result of the picture fusion, wherein the picture fusion process includes retaining the highlighted picture in the video picture of the inth frame and the video picture of the i+nth frame, including: The control terminal divides the video picture of the in-th frame so that the video picture of the in-th frame forms a plurality of first sub-pictures; The control terminal performs picture recognition on the plurality of first sub-pictures, and determines that a first sub-picture belonging to a characteristic picture among the plurality of first sub-pictures is a first target sub-picture, wherein the characteristic picture is a picture composed of highlighted pixels; The control terminal mosaics the plurality of first target sub-pictures into the i+nth frame of the video picture, so that the i+nth frame of the video picture forms the first target picture.

5. The method for power grid risk management based on image data according to claim 4, characterized in that: Mosaicing the plurality of first target sub-pictures into the i+nth frame of the video picture so that the i+nth frame of the video picture forms the first target picture, comprising: The control terminal divides the video picture of the i+nth frame so that the video picture of the i+nth frame forms a plurality of second sub-pictures, wherein one first sub-picture corresponds to one second sub-picture in a one-to-one manner; The control terminal obtains the average brightness value of each of the first target sub-pictures and each of the second sub-pictures, and compares the average brightness value of each of the first target sub-pictures with the average brightness value of the second sub-picture corresponding to the first target sub-picture; if the average brightness value of a first target sub-picture is greater than the average brightness value of the second sub-picture corresponding to the first target sub-picture, the second sub-picture in the i+nth frame of the video picture is replaced with the first target sub-picture.

6. The method for power grid risk management based on image data according to claim 1, characterized in that: The system further includes a display terminal. When i=3, 4, 5...n, the control terminal acquires n-2 second target images in total and constructs the n-2 second target images into continuous video images according to the time axis, including: The control terminal controls the display terminal to display the continuous video images.

7. A power grid risk management system based on image data, characterized in that: The system comprises a visual terminal and a control terminal for acquiring monitoring images of power grid equipment, and is capable of executing a power grid risk management method based on image data as described in claim 1.

8. An electronic device, characterized in that: include: at least one processor; And, a memory communicatively connected to at least one of the processors; wherein the memory stores instructions executable by at least one of the processors, and the instructions are executed by at least one of the processors so that at least one of the processors can execute the method proposed in any one of claims 1-6.

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