WO2023169207A1 - Self-adaptive operation and maintenance method for transformer substation video - Google Patents

Self-adaptive operation and maintenance method for transformer substation video Download PDF

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Publication number
WO2023169207A1
WO2023169207A1 PCT/CN2023/077499 CN2023077499W WO2023169207A1 WO 2023169207 A1 WO2023169207 A1 WO 2023169207A1 CN 2023077499 W CN2023077499 W CN 2023077499W WO 2023169207 A1 WO2023169207 A1 WO 2023169207A1
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Prior art keywords
monitoring
adaptive
detection time
view
neighbor
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PCT/CN2023/077499
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French (fr)
Chinese (zh)
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宁雪峰
芦大伟
罗旭恒
何建宗
李元佳
姚俊钦
戴喜良
谢肇轩
吴小彪
张承周
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广东电网有限责任公司东莞供电局
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Publication of WO2023169207A1 publication Critical patent/WO2023169207A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N17/00—Diagnosis, testing or measuring for television systems or their details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/63—Control of cameras or camera modules by using electronic viewfinders
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast

Definitions

  • This application relates to the technical field of video operation and maintenance, for example, to an adaptive operation and maintenance method of substation video.
  • monitoring equipment Since monitoring equipment is usually installed outdoors and often in harsh operating environments, after years of use, monitoring equipment is prone to failure due to aging. Once the monitoring equipment fails, the monitoring of the corresponding area will be ineffective. The current way to deal with this situation is to have security personnel regularly patrol the monitoring area to see if there is any failure, and after discovering the problem, dispatch personnel to the corresponding monitoring equipment to deal with it. This processing method takes a lot of time, and the operation and maintenance process is very passive; while waiting for personnel to handle it, the loss of monitoring within the monitoring range of the faulty equipment may cause serious consequences and reduce monitoring security.
  • This application provides an adaptive operation and maintenance method for substation video to solve the technical problems in related technologies that cause the monitoring within the monitoring range of faulty equipment to be lost while waiting for personnel to handle it, the monitoring security is reduced, and the operation and maintenance process is very passive.
  • An adaptive operation and maintenance method for substation video including the following steps:
  • Set the operation and maintenance trust level for each monitoring equipment in the substation in turn, adaptively set the detection frequency for the monitoring equipment based on the operation and maintenance trust level, and perform fault frames on the monitoring equipment according to the detection frequency.
  • Adaptive detection to obtain the monitoring equipment with video failure, and clear the operation and maintenance trust of the monitoring equipment with video failure;
  • Mark the monitoring device where the video fault occurs as a faulty device mark the monitoring device adjacent to the location of the faulty device as a neighbor device, construct an angle adjustment calculation formula for the adaptive adjustment angle of the neighbor device's monitoring field of view, and solve the angle adjustment calculation Formula to obtain the adaptive adjustment angle of the neighbor device's monitoring field of view;
  • the neighbor device performs adaptive adjustment of the monitoring field of view according to the adaptive adjustment angle, so that the monitoring field of view of the neighbor device is moved from the monitoring range of the neighbor device to the monitoring range of the faulty device to temporarily replace the fault. equipment, and simultaneously perform fault repairs on the faulty equipment and clear and restore the operation and maintenance trust;
  • the neighbor device After the fault repair of the faulty device and the clearing and restoration of the operation and maintenance trust are completed, the neighbor device is subjected to reverse adaptive adjustment of the monitoring field of view according to the adaptive adjustment angle, so that the neighbor device The monitoring field of view returns to the monitoring range of the neighbor device to cancel the temporary monitoring.
  • setting an operation and maintenance trust degree for each monitoring device in the substation in turn, and adaptively setting a detection frequency for the monitoring device based on the operation and maintenance trust degree includes:
  • the initial moment when the monitoring equipment is put into shooting surveillance videos is taken as the detection time t 0 , and the detection frequency f 0 is set for the monitoring equipment at the detection time t 0 , as well as the operation and maintenance trust level P 0 ;
  • the detection time t i+1 of the monitoring device is obtained, the video frames of the monitoring device at the detection time t i and the detection time t i+1 are extracted, and the detection time t i and the detection time t i+1 are calculated
  • the image similarity of the video frame is used as the failure probability at the detection time t i+1 ;
  • the operation and maintenance trust degree P i+1 at the detection time t i+ 1 is updated based on the operation and maintenance trust degree P i at the detection time t i
  • the detection frequency at detection time t i+1 is updated as
  • the operation and maintenance trust degree P i+1 at the detection time t i+1 is updated to The detection frequency at detection time t i+1 is updated as
  • i ⁇ [0, ⁇ ), i is a measurement constant
  • p is the gradient value of operation and maintenance trust
  • w is a constant coefficient
  • the monitoring field of view is characterized by the own shooting range of the monitoring equipment, the monitoring range is characterized by the shooting range required by the substation for the monitoring equipment, and the monitoring field of view is larger than the monitoring range.
  • the adaptive detection of fault frames on the monitoring device according to the detection frequency to obtain the monitoring device with a video fault includes;
  • the detection frequency f i is calculated sequentially from steps S101 to S102, i ⁇ [0, ⁇ );
  • the detection time t i+1 of the monitoring device is obtained, the video frames of the monitoring device at the detection time t i and the detection time t i+1 are extracted, and the detection time t i and the detection time t i+1 are calculated.
  • the image similarity of the video frame is used as the failure probability at the detection time t i+1 ;
  • the video frame at the detection time t i+1 is regarded as the fault frame
  • the monitoring equipment at the detection time t i+1 is determined to be in a faulty operating state
  • the monitoring equipment at the detection time t i+1 is determined to be in a faulty operating state.
  • i+1 is marked as a faulty device;
  • the video frame at the detection time t i+1 will be regarded as a non-fault frame, and the monitoring equipment will be determined to be in a non-fault operating state at the detection time t i+1.
  • the device at time t i+1 is not marked as a faulty device.
  • marking the monitoring device adjacent to the location of the faulty device as a neighbor device includes:
  • the monitoring device with the shortest distance from the center of the radiation circle on the radius of the radiation circle is marked as a neighbor device;
  • the only monitoring device on the radius of the radiation circle will be The monitoring device is marked as a neighbor device;
  • the preset length is less than or equal to the distance between the monitoring field of view boundary and the monitoring range boundary of the monitoring device.
  • solving the angle adjustment calculation formula to obtain the adaptive adjustment angle of the neighbor device's monitoring field of view includes:
  • the multi-objective solution formula includes a target formula for minimizing the angle adjustment amount and a target formula for maximizing the monitoring range coverage;
  • angle adjustment amount minimization target formula is:
  • the target formula for maximizing the monitoring range coverage is:
  • S represents the total coverage area of the monitoring range of the faulty device after the monitoring field of view of all neighbor devices has been adjusted by the adaptive adjustment angle
  • s( ⁇ j ) represents the monitoring field of view of the jth neighbor device after adjusting the adaptive angle of the fault.
  • the monitoring range of the device covers the area
  • n represents the total number of neighbor devices
  • j represents the measurement constant.
  • the set constraints include:
  • the connecting edge between the neighbor device and the monitoring field of view boundary of the neighbor device is used as the first angle edge
  • the neighbor device is The connecting edge of the monitoring range boundary of the device and the neighbor device is used as the second angle edge
  • the angle ⁇ j between the first angle edge and the second angle edge is measured as the upper limit of the adaptive adjustment angle of the neighbor device's monitoring field of view, so as Make the monitoring range of the neighbor device within the monitoring field of view of the neighbor device to ensure the monitoring security of the monitoring range of the neighbor device;
  • ⁇ j is represented by the angle between the first angle side and the second angle side of the j-th neighbor device.
  • the adaptive adjustment of the monitoring field of view of the neighbor device according to the adaptive adjustment angle includes:
  • the j-th neighbor device is sequentially adjusted according to the adaptive adjustment angle ⁇ j along the radius of the radiation circle where the neighbor device is located toward the center of the radiation circle to adaptively adjust the monitoring field of view.
  • the synchronized fault repair of the faulty device and the clearing and restoration of operation and maintenance trust include:
  • the operation and maintenance trust level is set to P 0 to perform the adaptive detection
  • the operation and maintenance trust level is set to P T to perform the adaptive detection
  • T represents the marking time of the faulty equipment.
  • the reverse adaptive adjustment of the monitoring field of view of the neighbor device according to the adaptive adjustment angle includes:
  • the j-th neighbor device is sequentially adjusted according to the adaptive adjustment angle ⁇ j along the radius of the radiation circle where the neighbor device is located and in the opposite direction to the center of the radiation circle to adaptively adjust the monitoring field of view.
  • This application adaptively adjusts the detection frequency to perform adaptive detection of fault frames on the monitoring equipment to locate the faulty equipment.
  • the adaptive detection effectively reduces the amount of calculation and improves the efficiency of locating the faulty equipment. It also performs adaptive detection on the faulty equipment.
  • the monitoring field of view of the neighbor device is adaptively adjusted according to the adaptive adjustment angle, so that the monitoring field of view of the neighbor device is moved from the monitoring range of the neighbor device to the monitoring range of the faulty device to temporarily replace the faulty device, ensuring the safety of the faulty device during the fault phase. Monitor security and realize automatic operation and maintenance.
  • Figure 1 is a flow chart of the adaptive operation and maintenance method provided by the embodiment of the present application.
  • this application provides an adaptive operation and maintenance method for substation video, including the following steps:
  • Step S1 Set the operation and maintenance trust level for each monitoring equipment in the substation in turn, adaptively set the detection frequency of the monitoring equipment based on the operation and maintenance trust level, and perform automatic detection of fault frames on the monitoring equipment according to the detection frequency. Adapt detection to obtain the monitoring equipment with video failure, and clear the operation and maintenance trust of the monitoring equipment with video failure;
  • Set operation and maintenance trust and set detection frequency including:
  • Step S101 The initial moment when the monitoring equipment is put into shooting surveillance videos is taken as the detection time t 0 .
  • the detection frequency f 0 and the operation and maintenance trust level P 0 are set for the monitoring equipment;
  • Step S102 Obtain the detection time t i+1 of the monitoring device based on the detection frequency fi , extract the video frames of the monitoring device at the detection time t i and the detection time t i+1 , and calculate the detection time t i and the detection time t i The image similarity of the video frame at +1 is used as the failure probability at detection time t i+1 ;
  • the operation and maintenance trust degree Pi +1 at the detection time t i+ 1 is updated based on the operation and maintenance trust degree P i at the detection time t i .
  • the detection frequency at detection time t i+1 is updated as
  • the operation and maintenance trust P i+1 at the detection time t i +1 is updated based on the operation and maintenance trust P i at the detection time t i
  • the detection frequency at detection time t i+1 is updated as
  • i ⁇ [0, ⁇ ), i is a measurement constant
  • p is the gradient value of operation and maintenance trust
  • w is a constant coefficient
  • the image similarity between the video frame at detection time t i+1 and the video frame at detection time t i is lower than the preset probability threshold, it means that the monitoring equipment at detection time t i+1 is in a fault state, and the The operation and maintenance trust of the monitoring equipment at the detection time t i+1 is lower than that at the detection time t i .
  • This also shows that the trust in the monitoring equipment is reduced after the detection time t i+1 , and the possibility of a fault state is higher. It requires close attention, so the detection frequency after the detection time t i+1 needs to be increased, and high-frequency collection of video frames can be carried out to identify the fault status of the monitoring equipment at the first time;
  • the detection frequency can be reduced when detecting video frames, that is, extending the collection time of video frames to avoid the subsequent time of stable operation. Multiple similar video frames representing the same stable operating state are collected within the system, resulting in redundancy of similar video frames, increasing the amount of calculation, and reducing detection efficiency.
  • this embodiment combines the operation and maintenance trust and detection frequency with the stability of the monitoring equipment ( That is, the number of occurrences of fault frames) is correlated, that is, when the number of occurrences of fault frames of the monitoring device is smaller, the stability of the monitoring device is higher, and the The higher the trust in the operation and maintenance of the control equipment, the longer the detection frequency, resulting in fewer redundant video frames, and the higher the detection efficiency.
  • Step S103 Taking the detection time t 0 as the starting point of adaptive detection, calculate the detection frequency f i in sequence from steps S101 to S102, i ⁇ [0, ⁇ );
  • Step S104 Obtain the detection time t i+1 of the monitoring device based on the detection frequency fi , extract the video frames of the monitoring device at the detection time t i and the detection time t i+1 , and calculate the detection time t i and the detection time t i+ The image similarity of the video frame at 1 is used as the failure probability at detection time t i+1 ;
  • the video frame at the detection time t i+1 is regarded as the fault frame, and the monitoring equipment is determined to be in a faulty operating state at the detection time t i+1 , and the monitoring equipment at the detection time t i+1 is determined to be in a faulty operating state.
  • i+1 is marked as a faulty device;
  • the video frame at the detection time t i+1 will be regarded as a non-fault frame, and the monitoring equipment will be determined to be in a non-fault operating state at the detection time t i+1 .
  • the monitoring equipment at the detection time will be Location t i+1 is not marked as a faulty device.
  • Step S2 Mark the monitoring device with a video fault as a faulty device, mark the monitoring device adjacent to the location of the faulty device as a neighbor device, construct an angle adjustment calculation formula for the adaptive adjustment angle of the neighbor device's monitoring field of view, and solve the The angle adjustment calculation formula is used to obtain the adaptive adjustment angle of the neighbor device's monitoring field of view.
  • the monitoring devices adjacent to the location of the faulty device are marked as neighbor devices, including:
  • the monitoring device with the shortest distance from the center of the radiation circle on the radius of the radiation circle will be marked as a neighbor device;
  • Only one monitoring device is reserved as a neighbor device in one radius direction to avoid multiple neighbor devices in the same radius direction shooting the same area within the monitoring range of the faulty device, resulting in repeated monitoring, and at the same time causing angle adjustments and interference to a larger number of neighbor devices. Its normal operation affects overall security.
  • the preset length is less than or equal to the distance between the monitoring field of view boundary and the monitoring range boundary of the monitoring device.
  • the adaptive adjustment angle of the neighboring device's monitoring field of view is solved, including:
  • the multi-objective solution formula includes the objective formula for minimizing the angle adjustment amount and the objective formula for maximizing the monitoring range coverage, which can minimize the calculated adaptive adjustment angle.
  • the angle adjustment amount minimization target formula is:
  • the target formula for maximizing monitoring scope coverage is:
  • S represents the total coverage area of the monitoring range of the faulty device after the monitoring field of view of all neighbor devices has been adjusted by the adaptive adjustment angle
  • s( ⁇ j ) represents the monitoring field of view of the jth neighbor device after adjusting the adaptive angle of the fault.
  • the monitoring range coverage area of the device, n is represented by the total number of neighbor devices, j Characterized by metrological constants;
  • the connecting edge between the neighbor device and the monitoring field boundary of the neighbor device is regarded as the first angle edge
  • the connecting edge between the neighbor device and the monitoring range boundary of the neighbor device is regarded as the second angle edge.
  • the angle ⁇ j serves as the upper limit of the adaptive adjustment angle of the neighbor device's monitoring field of view, so that the monitoring range of the neighbor device is within the monitoring field of view of the neighbor device to ensure the monitoring security of the neighbor device's monitoring range;
  • ⁇ j is represented by the angle between the first angle side and the second angle side of the j-th neighbor device.
  • Step S3 Adaptively adjust the monitoring field of view of the neighbor device according to the adaptive adjustment angle, so that the monitoring field of view of the neighbor device is moved from the monitoring range of the neighbor device to the monitoring range of the faulty device to temporarily replace The faulty equipment, and simultaneously perform fault repair on the faulty equipment and clear and restore the operation and maintenance trust;
  • the neighbor device performs adaptive adjustment of the monitoring field of view according to the adaptive adjustment angle, including:
  • the j-th neighbor device is sequentially adjusted according to the adaptive adjustment angle ⁇ j along the radius of the radiation circle where the neighbor device is located toward the center of the radiation circle to adaptively adjust the monitoring field of view.
  • the monitoring field of view is represented by the own shooting range of the monitoring equipment, and the monitoring range is represented by the shooting range required by the substation for the monitoring equipment.
  • the monitoring field of view is larger than the monitoring range.
  • Step S4 After the fault repair of the faulty device and the clearing and restoration of the operation and maintenance trust are completed, perform reverse adaptive adjustment of the monitoring field of view of the neighbor device according to the adaptive adjustment angle, so that the The monitoring field of view of the neighbor device is restored to the monitoring range of the neighbor device to cancel the monitoring temporary.
  • the faulty device is repaired and the operation and maintenance trust is cleared and restored simultaneously.
  • the operation and maintenance trust level is set to P 0 for adaptive detection
  • the operation and maintenance trust level is set to P T for adaptive detection, where T represents the marking time of the faulty device.
  • Perform reverse adaptive adjustment of the monitoring field of view of neighboring devices according to the adaptive adjustment angle including:
  • the j-th neighbor device is sequentially adjusted according to the adaptive adjustment angle ⁇ j along the radius of the radiation circle where the neighbor device is located and in the opposite direction to the center of the radiation circle to adaptively adjust the monitoring field of view.
  • This application adaptively adjusts the detection frequency to perform adaptive detection of fault frames on monitoring equipment to locate faulty equipment. Adaptive detection effectively reduces the amount of calculation and improves the efficiency of locating faulty equipment.
  • neighbor equipment is adaptively adjusted The monitoring field of view is adaptively adjusted according to the angle, so that the monitoring field of view of the neighbor device is moved from the monitoring range of the neighbor device to the monitoring range of the faulty device to temporarily replace the faulty device, ensuring monitoring security during the fault stage and realizing automatic operation and maintenance.

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Abstract

The present application relates to the technical field of video operation and maintenance. Disclosed is a self-adaptive operation and maintenance method for a transformer substation video, which comprises the following steps: setting an operation and maintenance trust degree for each monitoring device of a transformer substation in sequence; adaptively setting a detection frequency for each monitoring device on the basis of the operation and maintenance trust degree, and performing self-adaptive detection on fault frames of each monitoring device according to the detection frequency so as to acquire a monitoring device having a video fault; and constructing an angle adjustment calculation formula of a self-adaptive adjustment angle of a monitoring view of a neighbor device, so as to solve the self-adaptive adjustment angle of the monitoring view of the neighbor device.

Description

一种变电站视频的自适应运维方法An adaptive operation and maintenance method for substation video
本申请要求在2022年03月07日提交中国专利局、申请号为202210213673.X的中国专利申请的优先权，该申请的全部内容通过引用结合在本申请中。This application claims priority to the Chinese patent application with application number 202210213673.X, which was submitted to the China Patent Office on March 7, 2022. The entire content of this application is incorporated into this application by reference.
技术领域Technical field
本申请涉及视频运维技术领域，例如涉及一种变电站视频的自适应运维方法。This application relates to the technical field of video operation and maintenance, for example, to an adaptive operation and maintenance method of substation video.
背景技术Background technique
随着网络技术的发展和视频监控技术的逐渐普及，目前基于I P网络的视频监控已被广泛应用于安防领域中。With the development of network technology and the gradual popularization of video surveillance technology, video surveillance based on IP networks has been widely used in the security field.
由于监控设备通常装设于户外，常常处于恶劣的运行环境，常年使用下来，监控设备容易因老化而失灵，一旦监控设备失灵，对应区域的监控则会失效。目前对于该种情况的处理办法是，通过安防人员定期巡视是否有失效的监控区域，并在发现问题后调派人员前往对应的监控设备处进行处理。这种处理办法需要耗费较多的时间，运维过程很被动；在等待人员处理过程中，故障设备的监控范围内的监控丢失有可能会造成严重的后果，监控安全性降低。Since monitoring equipment is usually installed outdoors and often in harsh operating environments, after years of use, monitoring equipment is prone to failure due to aging. Once the monitoring equipment fails, the monitoring of the corresponding area will be ineffective. The current way to deal with this situation is to have security personnel regularly patrol the monitoring area to see if there is any failure, and after discovering the problem, dispatch personnel to the corresponding monitoring equipment to deal with it. This processing method takes a lot of time, and the operation and maintenance process is very passive; while waiting for personnel to handle it, the loss of monitoring within the monitoring range of the faulty equipment may cause serious consequences and reduce monitoring security.
发明内容Contents of the invention
本申请提供一种变电站视频的自适应运维方法，以解决相关技术中在等待人员处理过程中造成故障设备的监控范围内的监控丢失，监控安全性降低，运维过程很被动的技术问题。This application provides an adaptive operation and maintenance method for substation video to solve the technical problems in related technologies that cause the monitoring within the monitoring range of faulty equipment to be lost while waiting for personnel to handle it, the monitoring security is reduced, and the operation and maintenance process is very passive.
本申请具体提供下述技术方案：This application specifically provides the following technical solutions:
一种变电站视频的自适应运维方法，包括以下步骤：An adaptive operation and maintenance method for substation video, including the following steps:
依次对变电站的每个监控设备设置运维信任度，基于所述运维信任度对所述监控设备自适应设置检测频率，按所述检测频率对所述监控设备进行故障帧 的自适应检测以获取发生视频故障的监控设备，将所述发生视频故障的监控设备运维信任度清零；Set the operation and maintenance trust level for each monitoring equipment in the substation in turn, adaptively set the detection frequency for the monitoring equipment based on the operation and maintenance trust level, and perform fault frames on the monitoring equipment according to the detection frequency. Adaptive detection to obtain the monitoring equipment with video failure, and clear the operation and maintenance trust of the monitoring equipment with video failure;
将发生视频故障的监控设备标记为故障设备，将与所述故障设备位置邻接的监控设备标记为邻居设备，构建邻居设备监控视野的自适应调整角度的角度调整计算公式，求解所述角度调整计算公式，获得所述邻居设备监控视野的自适应调整角度；Mark the monitoring device where the video fault occurs as a faulty device, mark the monitoring device adjacent to the location of the faulty device as a neighbor device, construct an angle adjustment calculation formula for the adaptive adjustment angle of the neighbor device's monitoring field of view, and solve the angle adjustment calculation Formula to obtain the adaptive adjustment angle of the neighbor device's monitoring field of view;
将所述邻居设备按所述自适应调整角度进行监控视野的自适应调整，使所述邻居设备的监控视野从邻居设备的监控范围迁移至所述故障设备的监控范围，以暂替所述故障设备，并同步对所述故障设备进行故障修复以及对运维信任度进行清零恢复；The neighbor device performs adaptive adjustment of the monitoring field of view according to the adaptive adjustment angle, so that the monitoring field of view of the neighbor device is moved from the monitoring range of the neighbor device to the monitoring range of the faulty device to temporarily replace the fault. equipment, and simultaneously perform fault repairs on the faulty equipment and clear and restore the operation and maintenance trust;
在所述对所述故障设备进行故障修复以及对运维信任度进行清零恢复完成后，将所述邻居设备按自适应调整角度进行监控视野的反向自适应调整，使所述邻居设备的监控视野恢复至邻居设备的监控范围，以解除监控暂替。After the fault repair of the faulty device and the clearing and restoration of the operation and maintenance trust are completed, the neighbor device is subjected to reverse adaptive adjustment of the monitoring field of view according to the adaptive adjustment angle, so that the neighbor device The monitoring field of view returns to the monitoring range of the neighbor device to cancel the temporary monitoring.
可选地，所述依次对变电站的每个监控设备设置运维信任度，基于所述运维信任度对所述监控设备自适应设置检测频率，包括：Optionally, setting an operation and maintenance trust degree for each monitoring device in the substation in turn, and adaptively setting a detection frequency for the monitoring device based on the operation and maintenance trust degree includes:
将监控设备投入拍摄监控视频的初始时刻作为检测时刻t0，在检测时刻t0为监控设备设置检测频率f0，以及运维信任度P0；The initial moment when the monitoring equipment is put into shooting surveillance videos is taken as the detection time t 0 , and the detection frequency f 0 is set for the monitoring equipment at the detection time t 0 , as well as the operation and maintenance trust level P 0 ;
基于检测频率fi得到监控设备的检测时刻ti+1，抽取监控设备在检测时刻ti和检测时刻ti+1处的视频帧，并计算检测时刻ti和检测时刻ti+1处的视频帧的图像相似度，将图像相似度作为检测时刻ti+1的故障概率；Based on the detection frequency f i , the detection time t i+1 of the monitoring device is obtained, the video frames of the monitoring device at the detection time t i and the detection time t i+1 are extracted, and the detection time t i and the detection time t i+1 are calculated The image similarity of the video frame is used as the failure probability at the detection time t i+1 ;
其中，若故障概率超过预设概率阈值，则将检测时刻ti+1处的运维信任度Pi+1，在检测时刻ti处的运维信任度Pi的基础上更新为 检测时刻ti+1处的检测频率更新为 Among them, if the failure probability exceeds the preset probability threshold, the operation and maintenance trust degree P i+1 at the detection time t i+ 1 is updated based on the operation and maintenance trust degree P i at the detection time t i The detection frequency at detection time t i+1 is updated as
若故障概率未超过预设概率阈值，则将检测时刻ti+1处的运维信任度Pi+1，在检测时刻ti处的运维信任度Pi的基础上更新为检测时刻ti+1处的检测频率更新为 If the failure probability does not exceed the preset probability threshold, the operation and maintenance trust degree P i+1 at the detection time t i+1 is updated to The detection frequency at detection time t i+1 is updated as
式中，i∈[0,∞)，i为计量常数，p为运维信任度升降梯度值，w为常系数， In the formula, i∈[0,∞), i is a measurement constant, p is the gradient value of operation and maintenance trust, w is a constant coefficient,
可选地，所述监控视野表征为监控设备的自有拍摄范围，所述监控范围表征为变电站对监控设备的要求拍摄范围，所述监控视野大于所述监控范围。Optionally, the monitoring field of view is characterized by the own shooting range of the monitoring equipment, the monitoring range is characterized by the shooting range required by the substation for the monitoring equipment, and the monitoring field of view is larger than the monitoring range.
可选地，所述按所述检测频率对所述监控设备进行故障帧的自适应检测以获取发生视频故障的监控设备，包括；Optionally, the adaptive detection of fault frames on the monitoring device according to the detection frequency to obtain the monitoring device with a video fault includes;
以检测时刻t0为自适应检测起始点，以步骤S101至S102依次计算出检测频率fi，i∈[0,∞)；Taking the detection time t 0 as the starting point of adaptive detection, the detection frequency f i is calculated sequentially from steps S101 to S102, i∈[0,∞);
基于检测频率fi得到监控设备的检测时刻ti+1，抽取监控设备在检测时刻ti和检测时刻ti+1处的视频帧，计算检测时刻ti和检测时刻ti+1处的视频帧的图像相似度作为检测时刻ti+1的故障概率；Based on the detection frequency f i , the detection time t i+1 of the monitoring device is obtained, the video frames of the monitoring device at the detection time t i and the detection time t i+1 are extracted, and the detection time t i and the detection time t i+1 are calculated. The image similarity of the video frame is used as the failure probability at the detection time t i+1 ;
其中，若故障概率超过预设概率阈值，则将检测时刻ti+1的视频帧作为故障帧，将监控设备在检测时刻ti+1处判定为故障运行状态，将监控设备在检测时刻ti+1处标记为故障设备；Among them, if the fault probability exceeds the preset probability threshold, the video frame at the detection time t i+1 is regarded as the fault frame, the monitoring equipment at the detection time t i+1 is determined to be in a faulty operating state, and the monitoring equipment at the detection time t i+1 is determined to be in a faulty operating state. i+1 is marked as a faulty device;
若故障概率未超过预设概率阈值，则将检测时刻ti+1的视频帧作为非故障帧，将监控设备在检测时刻ti+1处判定为处于非故障运行状态，将监控设备在检测时刻ti+1处不标记为故障设备。If the failure probability does not exceed the preset probability threshold, the video frame at the detection time t i+1 will be regarded as a non-fault frame, and the monitoring equipment will be determined to be in a non-fault operating state at the detection time t i+1. The device at time t i+1 is not marked as a faulty device.
可选地，所述将与所述故障设备位置邻接的监控设备标记为邻居设备，包括：Optionally, marking the monitoring device adjacent to the location of the faulty device as a neighbor device includes:
将故障设备作为辐射圆心，以预设长度为辐射圆半径沿辐射圆心绘制出辐射圆；Use the faulty device as the center of the radiation circle, and draw a radiation circle along the center of the radiation circle with the preset length as the radius;
提取出位于辐射圆内的所有监控设备，并对所有监控设备沿辐射圆半径依次进行设备标记；Extract all monitoring equipment located within the radiation circle, and mark all monitoring equipment in sequence along the radius of the radiation circle;
其中，若所述辐射圆半径上存在两个及以上的监控设备，则将所述辐射圆半径上距离辐射圆心最短的监控设备标记为邻居设备；Wherein, if there are two or more monitoring devices on the radius of the radiation circle, the monitoring device with the shortest distance from the center of the radiation circle on the radius of the radiation circle is marked as a neighbor device;
若所述辐射圆半径上仅存在一个监控设备，则将所述辐射圆半径上唯一的 监控设备标记为邻居设备；If there is only one monitoring device on the radius of the radiation circle, the only monitoring device on the radius of the radiation circle will be The monitoring device is marked as a neighbor device;
所述预设长度小于或等于监控设备的监控视野边界和监控范围边界的相距距离长度。The preset length is less than or equal to the distance between the monitoring field of view boundary and the monitoring range boundary of the monitoring device.
可选地，所述求解所述角度调整计算公式，获得所述邻居设备监控视野的自适应调整角度，包括：Optionally, solving the angle adjustment calculation formula to obtain the adaptive adjustment angle of the neighbor device's monitoring field of view includes:
构建出邻居设备监控视野的自适应调整角度的多目标求解公式，所述多目标求解公式包括角度调整量最小化目标公式和监控范围覆盖量最大化目标公式；Construct a multi-objective solution formula for the adaptive adjustment angle of the neighbor device's monitoring field of view. The multi-objective solution formula includes a target formula for minimizing the angle adjustment amount and a target formula for maximizing the monitoring range coverage;
设置约束条件，在约束条件限制下对角度调整量最小化目标公式和监控范围覆盖量最大化目标公式进行求解得到每个邻居设备监控视野的自适应调整角度；Set constraint conditions, and solve the objective formula for minimizing the angle adjustment amount and maximizing the monitoring range coverage under the constraints to obtain the adaptive adjustment angle of the monitoring field of view of each neighbor device;
其中，所述角度调整量最小化目标公式为：
Wherein, the angle adjustment amount minimization target formula is:
式中，X表征所有邻居设备监控视野的自适应调整角度总和，θj表征为第j个邻居设备监控视野的自适应调整角度，n表征为邻居设备的总数量，j表征为计量常数；In the formula ,
所述监控范围覆盖量最大化目标公式为：
The target formula for maximizing the monitoring range coverage is:
式中，S表征所有邻居设备监控视野经过自适应调整角度调整后对故障设备的监控范围覆盖面积总和，s(θj)表征为第j个邻居设备监控视野经过自适应调整角度调整后对故障设备的监控范围覆盖面积，n表征为邻居设备的总数量，j表征为计量常数。In the formula, S represents the total coverage area of the monitoring range of the faulty device after the monitoring field of view of all neighbor devices has been adjusted by the adaptive adjustment angle, and s(θ j ) represents the monitoring field of view of the jth neighbor device after adjusting the adaptive angle of the fault. The monitoring range of the device covers the area, n represents the total number of neighbor devices, and j represents the measurement constant.
可选地，所述设置约束条件，包括：Optionally, the set constraints include:
将邻居设备与邻居设备的监控视野边界的连接边作为第一角度边，将邻居 设备与邻居设备的监控范围边界的连接边作为第二角度边，测量所述第一角度边和第二角度边间的夹角αj作为邻居设备监控视野的自适应调整角度的约束上限，以使得邻居设备的监控范围在所述邻居设备的监控视野内来保障邻居设备的监控范围的监控安全性；The connecting edge between the neighbor device and the monitoring field of view boundary of the neighbor device is used as the first angle edge, and the neighbor device is The connecting edge of the monitoring range boundary of the device and the neighbor device is used as the second angle edge, and the angle α j between the first angle edge and the second angle edge is measured as the upper limit of the adaptive adjustment angle of the neighbor device's monitoring field of view, so as Make the monitoring range of the neighbor device within the monitoring field of view of the neighbor device to ensure the monitoring security of the monitoring range of the neighbor device;
将角度0作为邻居设备监控视野的自适应调整角度的约束下限，以确保邻居设备监控视野的自适应调整角度的正向性；Use angle 0 as the lower limit of the adaptive adjustment angle of the neighbor device's monitoring field of view to ensure the positivity of the adaptive adjustment angle of the neighbor device's monitoring field of view;
所述约束条件的表达式为：
θj∈[0,αj]；The expression of the constraints is:
θ j ∈[0,α j ];
式中，αj表征为第j个邻居设备在第一角度边和第二角度边间的夹角。In the formula, α j is represented by the angle between the first angle side and the second angle side of the j-th neighbor device.
可选地，所述将所述邻居设备按所述自适应调整角度进行监控视野的自适应调整，包括：Optionally, the adaptive adjustment of the monitoring field of view of the neighbor device according to the adaptive adjustment angle includes:
依次将第j个邻居设备按自适应调整角度θj沿邻居设备所在的辐射圆半径朝辐射圆圆心方向进行监控视野的自适应调整。The j-th neighbor device is sequentially adjusted according to the adaptive adjustment angle θ j along the radius of the radiation circle where the neighbor device is located toward the center of the radiation circle to adaptively adjust the monitoring field of view.
可选地，所述同步对所述故障设备进行故障修复以及对运维信任度进行清零恢复，包括：Optionally, the synchronized fault repair of the faulty device and the clearing and restoration of operation and maintenance trust include:
若故障设备在故障修复后更换为新监控设备，则将运维信任度设置为P0以进行所述自适应检测；If the faulty device is replaced with a new monitoring device after the fault is repaired, the operation and maintenance trust level is set to P 0 to perform the adaptive detection;
若故障设备在故障修复后保留为原监控设备，则将运维信任度设置为PT以进行所述自适应检测；If the faulty device remains as the original monitoring device after the fault is repaired, the operation and maintenance trust level is set to P T to perform the adaptive detection;
其中，T表征为故障设备的标记时刻。Among them, T represents the marking time of the faulty equipment.
可选地，所述将所述邻居设备按自适应调整角度进行监控视野的反向自适应调整，包括：Optionally, the reverse adaptive adjustment of the monitoring field of view of the neighbor device according to the adaptive adjustment angle includes:
依次将第j个邻居设备按自适应调整角度θj沿邻居设备所在的辐射圆半径朝辐射圆圆心反方向进行监控视野的自适应调整。The j-th neighbor device is sequentially adjusted according to the adaptive adjustment angle θ j along the radius of the radiation circle where the neighbor device is located and in the opposite direction to the center of the radiation circle to adaptively adjust the monitoring field of view.
本申请自适应调整检测频率对监控设备进行故障帧的自适应检测以定位故障设备，自适应检测有效降低计算量，提高故障设备的定位效率，而且在故障 修复阶段，对邻居设备按自适应调整角度进行监控视野的自适应调整，以使得邻居设备的监控视野从邻居设备的监控范围迁移至故障设备的监控范围来暂替故障设备，保障了故障阶段的监控安全，实现自动运维。This application adaptively adjusts the detection frequency to perform adaptive detection of fault frames on the monitoring equipment to locate the faulty equipment. The adaptive detection effectively reduces the amount of calculation and improves the efficiency of locating the faulty equipment. It also performs adaptive detection on the faulty equipment. In the repair phase, the monitoring field of view of the neighbor device is adaptively adjusted according to the adaptive adjustment angle, so that the monitoring field of view of the neighbor device is moved from the monitoring range of the neighbor device to the monitoring range of the faulty device to temporarily replace the faulty device, ensuring the safety of the faulty device during the fault phase. Monitor security and realize automatic operation and maintenance.
附图说明Description of drawings
图1为本申请实施例提供的自适应运维方法流程图。Figure 1 is a flow chart of the adaptive operation and maintenance method provided by the embodiment of the present application.
具体实施方式Detailed ways
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all of the embodiments.
如图1所示，本申请提供了一种变电站视频的自适应运维方法，包括以下步骤：As shown in Figure 1, this application provides an adaptive operation and maintenance method for substation video, including the following steps:
步骤S1、依次对变电站的每个监控设备设置运维信任度，基于所述运维信任度对所述监控设备自适应设置检测频率，按所述检测频率对所述监控设备进行故障帧的自适应检测以获取发生视频故障的监控设备，将所述发生视频故障的监控设备运维信任度清零；Step S1: Set the operation and maintenance trust level for each monitoring equipment in the substation in turn, adaptively set the detection frequency of the monitoring equipment based on the operation and maintenance trust level, and perform automatic detection of fault frames on the monitoring equipment according to the detection frequency. Adapt detection to obtain the monitoring equipment with video failure, and clear the operation and maintenance trust of the monitoring equipment with video failure;
设置运维信任度，以及设置检测频率，包括：Set operation and maintenance trust and set detection frequency, including:
步骤S101、将监控设备投入拍摄监控视频的初始时刻作为检测时刻t0，在检测时刻t0为监控设备设置检测频率f0，以及运维信任度P0；Step S101. The initial moment when the monitoring equipment is put into shooting surveillance videos is taken as the detection time t 0 . At the detection time t 0 , the detection frequency f 0 and the operation and maintenance trust level P 0 are set for the monitoring equipment;
步骤S102、基于检测频率fi得到监控设备的检测时刻ti+1，抽取监控设备在检测时刻ti和检测时刻ti+1处的视频帧，并计算检测时刻ti和检测时刻ti+1处的视频帧的图像相似度，将图像相似度作为检测时刻ti+1的故障概率；Step S102: Obtain the detection time t i+1 of the monitoring device based on the detection frequency fi , extract the video frames of the monitoring device at the detection time t i and the detection time t i+1 , and calculate the detection time t i and the detection time t i The image similarity of the video frame at +1 is used as the failure probability at detection time t i+1 ;
其中，若故障概率超过预设概率阈值，则将检测时刻ti+1处的运维信任度Pi+1在检测时刻ti处的运维信任度Pi的基础上更新为检测时刻ti+1处的检测频率更新为 Among them, if the failure probability exceeds the preset probability threshold, the operation and maintenance trust degree Pi +1 at the detection time t i+ 1 is updated based on the operation and maintenance trust degree P i at the detection time t i . The detection frequency at detection time t i+1 is updated as
若故障概率未超过预设概率阈值，则将检测时刻ti+1处的运维信任度Pi+1在检测时刻ti处的运维信任度Pi的基础上更新为检测时刻ti+1处的检测频率更新为 If the failure probability does not exceed the preset probability threshold, the operation and maintenance trust P i+1 at the detection time t i +1 is updated based on the operation and maintenance trust P i at the detection time t i The detection frequency at detection time t i+1 is updated as
式中，i∈[0,∞)，i为计量常数，p为运维信任度升降梯度值，w为常系数， In the formula, i∈[0,∞), i is a measurement constant, p is the gradient value of operation and maintenance trust, w is a constant coefficient,
在检测时刻ti+1处的视频帧与检测时刻ti处的视频帧的图像相似度低于预设概率阈值时，则说明在检测时刻ti+1处的监控设备处于故障状态，将监控设备在检测时刻ti+1处的运维信任度较在检测时刻ti处进行降低，同时说明在在检测时刻ti+1后对监控设备信任度降低，出现故障状态的可能性较大需要密切关注，因此需要将在检测时刻ti+1后的检测频率升高，进行视频帧的高频采集，能在第一时间识别到监控设备的故障状态；When the image similarity between the video frame at detection time t i+1 and the video frame at detection time t i is lower than the preset probability threshold, it means that the monitoring equipment at detection time t i+1 is in a fault state, and the The operation and maintenance trust of the monitoring equipment at the detection time t i+1 is lower than that at the detection time t i . This also shows that the trust in the monitoring equipment is reduced after the detection time t i+1 , and the possibility of a fault state is higher. It requires close attention, so the detection frequency after the detection time t i+1 needs to be increased, and high-frequency collection of video frames can be carried out to identify the fault status of the monitoring equipment at the first time;
可以理解的是，在检测时刻ti+1处的视频帧与检测时刻ti处的视频帧的图像相似度高于预设概率阈值时，则说明在检测时刻ti+1处的监控设备处于非故障的稳定运行状态，将监控设备在检测时刻ti+1处的运维信任度较在检测时刻ti处进行提高，同时说明在在检测时刻ti+1后对监控设备信任度升高，出现故障状态的可能性较小无需要密切关注，因此需要将在检测时刻ti+1后的检测频率降低，进行视频帧的低频采集，避免处于稳定运行的视频帧冗余，能利用运维信任度进行自适应检测。It can be understood that when the image similarity between the video frame at the detection time t i+1 and the video frame at the detection time t i is higher than the preset probability threshold, it means that the monitoring equipment at the detection time t i+1 In a non-faulty stable operating state, the operation and maintenance trust of the monitoring equipment at the detection time t i+1 is improved compared to the detection time t i , and it also explains the trust in the monitoring equipment after the detection time t i+1 increases, the possibility of a fault state is small and does not require close attention. Therefore, it is necessary to reduce the detection frequency after the detection time t i+1 and perform low-frequency collection of video frames to avoid redundancy of video frames in stable operation. Leveraging operational trust for adaptive detection.
建立监控设备在运行时序上的运维信任度，用于作为监控设备稳定运行的衡量指标，监控设备在某一时刻的运维信任度越高，则表明该时刻监控设备处于稳定运行的可能性越高，因此在检测该监控设备在后续较长时间会处于一个稳定的运行状态，则可以在视频帧检测时，将检测频率降低，即延长视频帧的采集时长，避免在稳定运行的后续时长内采集到多个表征同一稳定运行状态的相似视频帧，造成相似视频帧的冗余，增加计算量，降低检测效率，因此本实施例将运维信任度和检测频率与监控设备的稳定性(即故障帧的发生次数)进行关联，即在监控设备故障帧发生次数越少时，监控设备的稳定性越高，则监 控设备的运维信任度越高，检测频率越长，造成的冗余视频帧越少，检测效率越高。Establish the operation and maintenance trust of the monitoring equipment in the running sequence, which is used as a measurement indicator of the stable operation of the monitoring equipment. The higher the operation and maintenance trust of the monitoring equipment at a certain moment, it indicates the possibility of stable operation of the monitoring equipment at that moment. Therefore, when detecting that the monitoring equipment will be in a stable operating state for a longer period of time, the detection frequency can be reduced when detecting video frames, that is, extending the collection time of video frames to avoid the subsequent time of stable operation. Multiple similar video frames representing the same stable operating state are collected within the system, resulting in redundancy of similar video frames, increasing the amount of calculation, and reducing detection efficiency. Therefore, this embodiment combines the operation and maintenance trust and detection frequency with the stability of the monitoring equipment ( That is, the number of occurrences of fault frames) is correlated, that is, when the number of occurrences of fault frames of the monitoring device is smaller, the stability of the monitoring device is higher, and the The higher the trust in the operation and maintenance of the control equipment, the longer the detection frequency, resulting in fewer redundant video frames, and the higher the detection efficiency.
按自适应检测频率对监控设备进行故障帧的自适应检测以获取发生视频故障的监控设备，包括；Perform adaptive detection of fault frames on monitoring equipment according to the adaptive detection frequency to obtain monitoring equipment with video faults, including;
步骤S103、以检测时刻t0为自适应检测起始点，以步骤S101至S102依次计算出检测频率fi，i∈[0,∞)；Step S103: Taking the detection time t 0 as the starting point of adaptive detection, calculate the detection frequency f i in sequence from steps S101 to S102, i∈[0,∞);
步骤S104、基于检测频率fi得到监控设备的检测时刻ti+1，抽取监控设备在检测时刻ti和检测时刻ti+1处的视频帧，计算检测时刻ti和检测时刻ti+1处的视频帧的图像相似度作为检测时刻ti+1的故障概率；Step S104: Obtain the detection time t i+1 of the monitoring device based on the detection frequency fi , extract the video frames of the monitoring device at the detection time t i and the detection time t i+1 , and calculate the detection time t i and the detection time t i+ The image similarity of the video frame at 1 is used as the failure probability at detection time t i+1 ;
其中，若故障概率超过预设概率阈值，则将检测时刻ti+1的视频帧作为故障帧，且监控设备在检测时刻ti+1处判定为故障运行状态，将监控设备在检测时刻ti+1处标记为故障设备；Among them, if the fault probability exceeds the preset probability threshold, the video frame at the detection time t i+1 is regarded as the fault frame, and the monitoring equipment is determined to be in a faulty operating state at the detection time t i+1 , and the monitoring equipment at the detection time t i+1 is determined to be in a faulty operating state. i+1 is marked as a faulty device;
若故障概率未超过预设概率阈值，则将检测时刻ti+1的视频帧作为非故障帧，且监控设备在检测时刻ti+1处判定为非故障运行状态，将监控设备在检测时刻ti+1处不标记为故障设备。If the failure probability does not exceed the preset probability threshold, the video frame at the detection time t i+1 will be regarded as a non-fault frame, and the monitoring equipment will be determined to be in a non-fault operating state at the detection time t i+1 . The monitoring equipment at the detection time will be Location t i+1 is not marked as a faulty device.
步骤S2、将发生视频故障的监控设备标记为故障设备，将与所述故障设备位置邻接的监控设备标记为邻居设备，构建邻居设备监控视野的自适应调整角度的角度调整计算公式，求解所述角度调整计算公式，获得所述邻居设备监控视野的自适应调整角度。Step S2: Mark the monitoring device with a video fault as a faulty device, mark the monitoring device adjacent to the location of the faulty device as a neighbor device, construct an angle adjustment calculation formula for the adaptive adjustment angle of the neighbor device's monitoring field of view, and solve the The angle adjustment calculation formula is used to obtain the adaptive adjustment angle of the neighbor device's monitoring field of view.
其中，将与故障设备位置邻接的监控设备标记为邻居设备，包括：Among them, the monitoring devices adjacent to the location of the faulty device are marked as neighbor devices, including:
将故障设备作为辐射圆心，以预设长度为辐射圆半径沿辐射圆心绘制出辐射圆；Use the faulty device as the center of the radiation circle, and draw a radiation circle along the center of the radiation circle with the preset length as the radius;
提取出位于辐射圆内的所有监控设备，并对所有监控设备沿辐射圆半径依次进行设备标记。Extract all monitoring equipment located within the radiation circle, and label all monitoring equipment in sequence along the radius of the radiation circle.
其中，若辐射圆半径上存在两个及以上的监控设备，则将辐射圆半径上距离辐射圆心最短的监控设备标记为邻居设备； Among them, if there are two or more monitoring devices on the radius of the radiation circle, the monitoring device with the shortest distance from the center of the radiation circle on the radius of the radiation circle will be marked as a neighbor device;
若辐射圆半径上仅存在一个监控设备，则将辐射圆半径上唯一的监控设备标记为邻居设备。If there is only one monitoring device on the radius of the radiation circle, mark the only monitoring device on the radius of the radiation circle as a neighbor device.
在一个半径方向上只保留一个监控设备作为邻居设备，避免同一半径方向上造成多个邻居设备拍摄故障设备监控范围内相同区域，造成重复监控，同时对更多数量的邻居设备造成角度调整，干扰其正常运行，影响整体安全性。Only one monitoring device is reserved as a neighbor device in one radius direction to avoid multiple neighbor devices in the same radius direction shooting the same area within the monitoring range of the faulty device, resulting in repeated monitoring, and at the same time causing angle adjustments and interference to a larger number of neighbor devices. Its normal operation affects overall security.
具体地，预设长度小于或等于监控设备的监控视野边界和监控范围边界的相距距离长度。Specifically, the preset length is less than or equal to the distance between the monitoring field of view boundary and the monitoring range boundary of the monitoring device.
本实施例中，求解出邻居设备监控视野的自适应调整角度，包括：In this embodiment, the adaptive adjustment angle of the neighboring device's monitoring field of view is solved, including:
构建出邻居设备监控视野的自适应调整角度的多目标求解公式，多目标求解公式包括角度调整量最小化目标公式和监控范围覆盖量最大化目标公式，可使得求解出的自适应调整角度实现最小角度调整量和最大覆盖面积；Construct a multi-objective solution formula for the adaptive adjustment angle of the neighboring device's monitoring field of view. The multi-objective solution formula includes the objective formula for minimizing the angle adjustment amount and the objective formula for maximizing the monitoring range coverage, which can minimize the calculated adaptive adjustment angle. Angle adjustment amount and maximum coverage area;
设置约束条件，在约束条件限制下对角度调整量最小化目标公式和监控范围覆盖量最大化目标公式进行求解得到每个邻居设备监控视野的自适应调整角度。Set the constraint conditions, and solve the objective formula for minimizing the angle adjustment amount and maximizing the monitoring range coverage under the constraints to obtain the adaptive adjustment angle of the monitoring field of view of each neighbor device.
其中，角度调整量最小化目标公式为：
Among them, the angle adjustment amount minimization target formula is:
式中，X表征所有邻居设备监控视野的自适应调整角度总和，θj表征为第j个邻居设备监控视野的自适应调整角度，n表征为邻居设备的总数量，j表征为计量常数；In the formula ,
监控范围覆盖量最大化目标公式为：
The target formula for maximizing monitoring scope coverage is:
式中，S表征所有邻居设备监控视野经过自适应调整角度调整后对故障设备的监控范围覆盖面积总和，s(θj)表征为第j个邻居设备监控视野经过自适应调整角度调整后对故障设备的监控范围覆盖面积，n表征为邻居设备的总数量，j 表征为计量常数；In the formula, S represents the total coverage area of the monitoring range of the faulty device after the monitoring field of view of all neighbor devices has been adjusted by the adaptive adjustment angle, and s(θ j ) represents the monitoring field of view of the jth neighbor device after adjusting the adaptive angle of the fault. The monitoring range coverage area of the device, n is represented by the total number of neighbor devices, j Characterized by metrological constants;
设置约束条件，包括：Set constraints, including:
将邻居设备与邻居设备的监控视野边界的连接边作为第一角度边，将邻居设备与邻居设备的监控范围边界的连接边作为第二角度边，测量第一角度边和第二角度边间的夹角αj作为邻居设备监控视野的自适应调整角度的约束上限，以使得邻居设备的监控范围在邻居设备的监控视野内来保障邻居设备的监控范围的监控安全性；The connecting edge between the neighbor device and the monitoring field boundary of the neighbor device is regarded as the first angle edge, and the connecting edge between the neighbor device and the monitoring range boundary of the neighbor device is regarded as the second angle edge. Measure the distance between the first angle edge and the second angle edge. The angle α j serves as the upper limit of the adaptive adjustment angle of the neighbor device's monitoring field of view, so that the monitoring range of the neighbor device is within the monitoring field of view of the neighbor device to ensure the monitoring security of the neighbor device's monitoring range;
将角度0作为邻居设备监控视野的自适应调整角度的约束下限，以确保邻居设备监控视野的自适应调整角度的正向性；Use angle 0 as the lower limit of the adaptive adjustment angle of the neighbor device's monitoring field of view to ensure the positivity of the adaptive adjustment angle of the neighbor device's monitoring field of view;
约束条件的表达式为：
θj∈[0,αj]；The expression of the constraints is:
θ j ∈[0,α j ];
式中，αj表征为第j个邻居设备在第一角度边和第二角度边间的夹角。In the formula, α j is represented by the angle between the first angle side and the second angle side of the j-th neighbor device.
步骤S3、将所述邻居设备按所述自适应调整角度进行监控视野的自适应调整，使所述邻居设备的监控视野从邻居设备的监控范围迁移至所述故障设备的监控范围，以暂替所述故障设备，并同步对所述故障设备进行故障修复以及对运维信任度进行清零恢复；Step S3: Adaptively adjust the monitoring field of view of the neighbor device according to the adaptive adjustment angle, so that the monitoring field of view of the neighbor device is moved from the monitoring range of the neighbor device to the monitoring range of the faulty device to temporarily replace The faulty equipment, and simultaneously perform fault repair on the faulty equipment and clear and restore the operation and maintenance trust;
本实施例中，邻居设备按自适应调整角度进行监控视野的自适应调整，包括：In this embodiment, the neighbor device performs adaptive adjustment of the monitoring field of view according to the adaptive adjustment angle, including:
依次将第j个邻居设备按自适应调整角度θj沿邻居设备所在的辐射圆半径朝辐射圆圆心方向进行监控视野的自适应调整。The j-th neighbor device is sequentially adjusted according to the adaptive adjustment angle θ j along the radius of the radiation circle where the neighbor device is located toward the center of the radiation circle to adaptively adjust the monitoring field of view.
监控视野表征为监控设备的自有拍摄范围，监控范围表征为变电站对监控设备的要求拍摄范围，监控视野大于监控范围。The monitoring field of view is represented by the own shooting range of the monitoring equipment, and the monitoring range is represented by the shooting range required by the substation for the monitoring equipment. The monitoring field of view is larger than the monitoring range.
步骤S4、在所述对所述故障设备进行故障修复以及对运维信任度进行清零恢复完成后，将所述邻居设备按自适应调整角度进行监控视野的反向自适应调整，使所述邻居设备的监控视野恢复至邻居设备的监控范围，以解除监控暂替。Step S4: After the fault repair of the faulty device and the clearing and restoration of the operation and maintenance trust are completed, perform reverse adaptive adjustment of the monitoring field of view of the neighbor device according to the adaptive adjustment angle, so that the The monitoring field of view of the neighbor device is restored to the monitoring range of the neighbor device to cancel the monitoring temporary.
本实施例中，同步对故障设备进行故障修复和运维信任度进行清零恢复， 包括：In this embodiment, the faulty device is repaired and the operation and maintenance trust is cleared and restored simultaneously. include:
若故障设备在故障修复后更换为新监控设备，则将运维信任度设置为P0以进行自适应检测；If the faulty device is replaced with a new monitoring device after the fault is repaired, the operation and maintenance trust level is set to P 0 for adaptive detection;
若故障设备在故障修复后保留为原监控设备，则将运维信任度设置为PT以进行自适应检测，其中，T表征为故障设备的标记时刻。If the faulty device remains as the original monitoring device after the fault is repaired, the operation and maintenance trust level is set to P T for adaptive detection, where T represents the marking time of the faulty device.
将邻居设备按自适应调整角度进行监控视野的反向自适应调整，包括：Perform reverse adaptive adjustment of the monitoring field of view of neighboring devices according to the adaptive adjustment angle, including:
依次将第j个邻居设备按自适应调整角度θj沿邻居设备所在的辐射圆半径朝辐射圆圆心反方向进行监控视野的自适应调整。The j-th neighbor device is sequentially adjusted according to the adaptive adjustment angle θ j along the radius of the radiation circle where the neighbor device is located and in the opposite direction to the center of the radiation circle to adaptively adjust the monitoring field of view.
本申请自适应调整检测频率对监控设备进行故障帧的自适应检测以定位故障设备，自适应检测有效降低计算量，提高故障设备的定位效率，而且在故障修复阶段，对邻居设备按自适应调整角度进行监控视野的自适应调整，以使得邻居设备的监控视野从邻居设备的监控范围迁移至故障设备的监控范围来暂替故障设备，保障了故障阶段的监控安全，实现自动运维。This application adaptively adjusts the detection frequency to perform adaptive detection of fault frames on monitoring equipment to locate faulty equipment. Adaptive detection effectively reduces the amount of calculation and improves the efficiency of locating faulty equipment. In addition, during the fault repair stage, neighbor equipment is adaptively adjusted The monitoring field of view is adaptively adjusted according to the angle, so that the monitoring field of view of the neighbor device is moved from the monitoring range of the neighbor device to the monitoring range of the faulty device to temporarily replace the faulty device, ensuring monitoring security during the fault stage and realizing automatic operation and maintenance.
以上实施例仅为本申请的示例性实施例，不用于限制本申请，本申请的保护范围由权利要求书限定。本领域技术人员可以在本申请的实质和保护范围内，对本申请做出各种修改或等同替换，这种修改或等同替换也应视为落在本申请的保护范围内。 The above embodiments are only exemplary embodiments of the present application and are not used to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within the essence and protection scope of this application, and such modifications or equivalent substitutions should also be deemed to fall within the protection scope of this application.

Claims (10)

  1. 一种变电站视频的自适应运维方法，包括以下步骤：An adaptive operation and maintenance method for substation video, including the following steps:
    依次对变电站的每个监控设备设置运维信任度，基于所述运维信任度对所述监控设备自适应设置检测频率，按所述检测频率对所述监控设备进行故障帧的自适应检测以获取发生视频故障的监控设备，将所述发生视频故障的监控设备运维信任度清零；Set an operation and maintenance trust degree for each monitoring device in the substation in turn, adaptively set a detection frequency for the monitoring device based on the operation and maintenance trust degree, and perform adaptive detection of fault frames on the monitoring device according to the detection frequency to Obtain the monitoring equipment where the video failure occurred, and clear the operation and maintenance trust of the monitoring equipment where the video failure occurred;
    将发生视频故障的监控设备标记为故障设备，将与所述故障设备位置邻接的监控设备标记为邻居设备，构建邻居设备监控视野的自适应调整角度的角度调整计算公式，求解所述角度调整计算公式，获得所述邻居设备监控视野的自适应调整角度；Mark the monitoring device where the video fault occurs as a faulty device, mark the monitoring device adjacent to the location of the faulty device as a neighbor device, construct an angle adjustment calculation formula for the adaptive adjustment angle of the neighbor device's monitoring field of view, and solve the angle adjustment calculation Formula to obtain the adaptive adjustment angle of the neighbor device's monitoring field of view;
    将所述邻居设备按所述自适应调整角度进行监控视野的自适应调整，使所述邻居设备的监控视野从邻居设备的监控范围迁移至所述故障设备的监控范围，以暂替所述故障设备，并同步对所述故障设备进行故障修复以及对运维信任度进行清零恢复；The neighbor device performs adaptive adjustment of the monitoring field of view according to the adaptive adjustment angle, so that the monitoring field of view of the neighbor device is moved from the monitoring range of the neighbor device to the monitoring range of the faulty device to temporarily replace the fault. equipment, and simultaneously perform fault repairs on the faulty equipment and clear and restore the operation and maintenance trust;
    在所述对所述故障设备进行故障修复以及对运维信任度进行清零恢复完成后，将所述邻居设备按自适应调整角度进行监控视野的反向自适应调整，使所述邻居设备的监控视野恢复至邻居设备的监控范围，以解除监控暂替。After the fault repair of the faulty device and the clearing and restoration of the operation and maintenance trust are completed, the neighbor device is subjected to reverse adaptive adjustment of the monitoring field of view according to the adaptive adjustment angle, so that the neighbor device The monitoring field of view returns to the monitoring range of the neighbor device to cancel the temporary monitoring.
  2. 根据权利要求1所述的一种变电站视频的自适应运维方法，其中，所述依次对变电站的每个监控设备设置运维信任度，基于所述运维信任度对所述监控设备自适应设置检测频率，包括：An adaptive operation and maintenance method for substation video according to claim 1, wherein the operation and maintenance trust degree is set for each monitoring device of the substation in turn, and the monitoring device is adaptively configured based on the operation and maintenance trust degree. Set detection frequency, including:
    将监控设备投入拍摄监控视频的初始时刻作为检测时刻t0，在检测时刻t0为监控设备设置检测频率f0，以及运维信任度P0；The initial moment when the monitoring equipment is put into shooting surveillance videos is taken as the detection time t 0 , and the detection frequency f 0 is set for the monitoring equipment at the detection time t 0 , as well as the operation and maintenance trust level P 0 ;
    基于检测频率fi得到监控设备的检测时刻ti+1，抽取监控设备在检测时刻ti和检测时刻ti+1处的视频帧，并计算检测时刻ti和检测时刻ti+1处的视频帧的图像相似度，将图像相似度作为检测时刻ti+1的故障概率；Based on the detection frequency f i , the detection time t i+1 of the monitoring device is obtained, the video frames of the monitoring device at the detection time t i and the detection time t i+1 are extracted, and the detection time t i and the detection time t i+1 are calculated The image similarity of the video frame is used as the failure probability at the detection time t i+1 ;
    其中，若故障概率超过预设概率阈值，则将检测时刻ti+1处的运维信任度Pi+1，在检测时刻ti处的运维信任度Pi的基础上更新为 检测时刻ti+1处的检测频率更新为 Among them, if the failure probability exceeds the preset probability threshold, the operation and maintenance trust degree P i+1 at the detection time t i+ 1 is updated based on the operation and maintenance trust degree P i at the detection time t i The detection frequency at detection time t i+1 is updated as
    若故障概率未超过预设概率阈值，则将检测时刻ti+1处的运维信任度Pi+1，在检测时刻ti处的运维信任度Pi的基础上更新为检测时刻ti+1处的检测频率更新为 If the failure probability does not exceed the preset probability threshold, the operation and maintenance trust degree P i+1 at the detection time t i+1 is updated to The detection frequency at detection time t i+1 is updated as
    式中，i∈[0,∞)，i为计量常数，p为运维信任度升降梯度值，w为常系数， In the formula, i∈[0,∞), i is a measurement constant, p is the gradient value of operation and maintenance trust, w is a constant coefficient,
  3. 根据权利要求2所述的一种变电站视频的自适应运维方法，其中，所述监控视野表征为监控设备的自有拍摄范围，所述监控范围表征为变电站对监控设备的要求拍摄范围，所述监控视野大于所述监控范围。An adaptive operation and maintenance method for substation video according to claim 2, wherein the monitoring field of view is characterized by the own shooting range of the monitoring equipment, and the monitoring range is characterized by the shooting range required by the substation for the monitoring equipment, so The monitoring field of view is larger than the monitoring range.
  4. 根据权利要求3所述的一种变电站视频的自适应运维方法，其中，所述按所述检测频率对所述监控设备进行故障帧的自适应检测以获取发生视频故障的监控设备，包括；An adaptive operation and maintenance method for substation video according to claim 3, wherein the adaptive detection of fault frames on the monitoring equipment according to the detection frequency to obtain the monitoring equipment with video faults includes;
    以检测时刻t0为自适应检测起始点，以步骤S101至S102依次计算出检测频率fi，i∈[0,∞)；Taking the detection time t 0 as the starting point of adaptive detection, the detection frequency f i is calculated sequentially from steps S101 to S102, i∈[0,∞);
    基于检测频率fi得到监控设备的检测时刻ti+1，抽取监控设备在检测时刻ti和检测时刻ti+1处的视频帧，计算检测时刻ti和检测时刻ti+1处的视频帧的图像相似度作为检测时刻ti+1的故障概率；Based on the detection frequency f i , the detection time t i+1 of the monitoring device is obtained, the video frames of the monitoring device at the detection time t i and the detection time t i+1 are extracted, and the detection time t i and the detection time t i+1 are calculated. The image similarity of the video frame is used as the failure probability at the detection time t i+1 ;
    其中，若故障概率超过预设概率阈值，则将检测时刻ti+1的视频帧作为故障帧，将监控设备在检测时刻ti+1处判定为故障运行状态，将监控设备在检测时刻ti+1处标记为故障设备；Among them, if the fault probability exceeds the preset probability threshold, the video frame at the detection time t i+1 is regarded as the fault frame, the monitoring equipment at the detection time t i+1 is determined to be in a faulty operating state, and the monitoring equipment at the detection time t i+1 is determined to be in a faulty operating state. i+1 is marked as a faulty device;
    若故障概率未超过预设概率阈值，则将检测时刻ti+1的视频帧作为非故障帧，将监控设备在检测时刻ti+1处判定为处于非故障运行状态，将监控设备在检测时刻ti+1处不标记为故障设备。If the failure probability does not exceed the preset probability threshold, the video frame at the detection time t i+1 will be regarded as a non-fault frame, and the monitoring equipment will be determined to be in a non-fault operating state at the detection time t i+1. The device at time t i+1 is not marked as a faulty device.
  5. 根据权利要求4所述的一种变电站视频的自适应运维方法，其中，所述将与所述故障设备位置邻接的监控设备标记为邻居设备，包括： An adaptive operation and maintenance method for substation video according to claim 4, wherein marking the monitoring device adjacent to the location of the faulty device as a neighbor device includes:
    将故障设备作为辐射圆心，以预设长度为辐射圆半径沿辐射圆心绘制出辐射圆；Use the faulty device as the center of the radiation circle, and draw a radiation circle along the center of the radiation circle with the preset length as the radius;
    提取出位于辐射圆内的所有监控设备，并对所有监控设备沿辐射圆半径依次进行设备标记；Extract all monitoring equipment located within the radiation circle, and mark all monitoring equipment in sequence along the radius of the radiation circle;
    其中，若所述辐射圆半径上存在两个及以上的监控设备，则将所述辐射圆半径上距离辐射圆心最短的监控设备标记为邻居设备；Wherein, if there are two or more monitoring devices on the radius of the radiation circle, the monitoring device with the shortest distance from the center of the radiation circle on the radius of the radiation circle is marked as a neighbor device;
    若所述辐射圆半径上仅存在一个监控设备，则将所述辐射圆半径上唯一的监控设备标记为邻居设备；If there is only one monitoring device on the radius of the radiation circle, mark the only monitoring device on the radius of the radiation circle as a neighbor device;
    所述预设长度小于或等于监控设备的监控视野边界和监控范围边界的相距距离长度。The preset length is less than or equal to the distance between the monitoring field of view boundary and the monitoring range boundary of the monitoring device.
  6. 根据权利要求5所述的一种变电站视频的自适应运维方法，其中，所述求解所述角度调整计算公式，获得所述邻居设备监控视野的自适应调整角度，包括：An adaptive operation and maintenance method for substation video according to claim 5, wherein said solving the angle adjustment calculation formula to obtain the adaptive adjustment angle of the neighbor device monitoring field of view includes:
    构建出邻居设备监控视野的自适应调整角度的多目标求解公式，所述多目标求解公式包括角度调整量最小化目标公式和监控范围覆盖量最大化目标公式；Construct a multi-objective solution formula for the adaptive adjustment angle of the neighbor device's monitoring field of view. The multi-objective solution formula includes a target formula for minimizing the angle adjustment amount and a target formula for maximizing the monitoring range coverage;
    设置约束条件，在约束条件限制下对角度调整量最小化目标公式和监控范围覆盖量最大化目标公式进行求解得到每个邻居设备监控视野的自适应调整角度；Set constraint conditions, and solve the objective formula for minimizing the angle adjustment amount and maximizing the monitoring range coverage under the constraints to obtain the adaptive adjustment angle of the monitoring field of view of each neighbor device;
    其中，所述角度调整量最小化目标公式为：
    Wherein, the angle adjustment amount minimization target formula is:
    式中，X表征所有邻居设备监控视野的自适应调整角度总和，θj表征为第j个邻居设备监控视野的自适应调整角度，n表征为邻居设备的总数量，j表征为计量常数；In the formula ,
    所述监控范围覆盖量最大化目标公式为：
    The target formula for maximizing the monitoring range coverage is:
    式中，S表征所有邻居设备监控视野经过自适应调整角度调整后对故障设备的监控范围覆盖面积总和，s(θj)表征为第j个邻居设备监控视野经过自适应调整角度调整后对故障设备的监控范围覆盖面积，n表征为邻居设备的总数量，j表征为计量常数。In the formula, S represents the total coverage area of the monitoring range of the faulty device after the monitoring field of view of all neighbor devices has been adjusted by the adaptive adjustment angle, and s(θ j ) represents the monitoring field of view of the jth neighbor device after adjusting the adaptive angle of the fault. The monitoring range of the device covers the area, n represents the total number of neighbor devices, and j represents the measurement constant.
  7. 根据权利要求6所述的一种变电站视频的自适应运维方法，其中，所述设置约束条件，包括：An adaptive operation and maintenance method for substation video according to claim 6, wherein the setting of constraints includes:
    将邻居设备与邻居设备的监控视野边界的连接边作为第一角度边，将邻居设备与邻居设备的监控范围边界的连接边作为第二角度边，测量所述第一角度边和第二角度边间的夹角αj作为邻居设备监控视野的自适应调整角度的约束上限，以使得邻居设备的监控范围在所述邻居设备的监控视野内来保障邻居设备的监控范围的监控安全性；The connecting edge between the neighbor device and the boundary of the monitoring field of view of the neighbor device is used as the first angular edge, and the connecting edge between the neighbor device and the boundary of the monitoring range of the neighbor device is used as the second angular edge, and the first angular edge and the second angular edge are measured. The angle α j between them is used as the upper limit of the adaptive adjustment angle of the neighbor device's monitoring field of view, so that the monitoring range of the neighbor device is within the monitoring field of view of the neighbor device to ensure the monitoring security of the monitoring range of the neighbor device;
    将角度0作为邻居设备监控视野的自适应调整角度的约束下限，以确保邻居设备监控视野的自适应调整角度的正向性；Use angle 0 as the lower limit of the adaptive adjustment angle of the neighbor device's monitoring field of view to ensure the positivity of the adaptive adjustment angle of the neighbor device's monitoring field of view;
    所述约束条件的表达式为：The expression of the constraints is:
    θj∈[0,αj]；θ j ∈[0,α j ];
    式中，αj表征为第j个邻居设备在第一角度边和第二角度边间的夹角。In the formula, α j is represented by the angle between the first angle side and the second angle side of the j-th neighbor device.
  8. 根据权利要求7所述的一种变电站视频的自适应运维方法，其中，所述将所述邻居设备按所述自适应调整角度进行监控视野的自适应调整，包括：An adaptive operation and maintenance method for substation video according to claim 7, wherein the adaptive adjustment of the monitoring field of view of the neighbor device according to the adaptive adjustment angle includes:
    依次将第j个邻居设备按自适应调整角度θj沿邻居设备所在的辐射圆半径朝辐射圆圆心方向进行监控视野的自适应调整。The j-th neighbor device is sequentially adjusted according to the adaptive adjustment angle θ j along the radius of the radiation circle where the neighbor device is located toward the center of the radiation circle to adaptively adjust the monitoring field of view.
  9. 根据权利要求8所述的一种变电站视频的自适应运维方法，其中，所述同步对所述故障设备进行故障修复以及对运维信任度进行清零恢复，包括：An adaptive operation and maintenance method for substation video according to claim 8, wherein the synchronized fault repair of the faulty equipment and the clearing and restoration of the operation and maintenance trust include:
    若故障设备在故障修复后更换为新监控设备，则将运维信任度设置为P0以进行所述自适应检测； If the faulty device is replaced with a new monitoring device after the fault is repaired, the operation and maintenance trust level is set to P 0 to perform the adaptive detection;
    若故障设备在故障修复后保留为原监控设备，则将运维信任度设置为PT以进行所述自适应检测；If the faulty device remains as the original monitoring device after the fault is repaired, the operation and maintenance trust level is set to P T to perform the adaptive detection;
    其中，T表征为故障设备的标记时刻。Among them, T represents the marking time of the faulty equipment.
  10. 根据权利要求9所述的一种变电站视频的自适应运维方法，其中，所述将所述邻居设备按自适应调整角度进行监控视野的反向自适应调整，包括：An adaptive operation and maintenance method for substation video according to claim 9, wherein the reverse adaptive adjustment of the monitoring field of view of the neighbor device according to the adaptive adjustment angle includes:
    依次将第j个邻居设备按自适应调整角度θj沿邻居设备所在的辐射圆半径朝辐射圆圆心反方向进行监控视野的自适应调整。 The j-th neighbor device is sequentially adjusted according to the adaptive adjustment angle θ j along the radius of the radiation circle where the neighbor device is located and in the opposite direction to the center of the radiation circle to adaptively adjust the monitoring field of view.
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