Remote rapid switching method and system for switch cabinet reclosing

Abstract

The invention discloses a remote rapid switching method and system for switch cabinet reclosure, and relates to the technical field of reclosure switching. The method comprises the following steps: receiving a reclosing switching instruction, and determining an operation target and a target pressing plate according to the reclosing switching instruction; controlling the operation target to execute reclosing switching operation, and obtaining a switching operation video; detecting a static image frame and a moving image frame in the video by using a frame difference method, and extracting images before and after the input and retreat operation from the video based on the switching between the static state and the moving state between the image frames; performing region segmentation on the front image and the rear image based on target detection to obtain a plurality of pressing plate images, and determining an image of a target pressing plate from the plurality of pressing plate images; and detecting the switching state of the target pressing plate in the image of the target pressing plate, and judging whether the switching operation is successful or not according to the switching state of the target pressing plate before and after the switching operation and the reclosing switching instruction. According to the invention, remote rapid switching of the reclosure is realized, and the safety of remote switching operation is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of reclosing switch throwing and pulling, and in particular to a remote rapid throwing and pulling method and system for a switch cabinet reclosing switch. Background Art

[0002] The reclosing device is an automatic device that automatically switches on the circuit breaker that has tripped due to a fault as needed. Switching on the reclosing device can effectively ensure the safe, reliable and stable operation of the power grid and reduce power outages; switching off the reclosing device is a prerequisite for the power department to ensure high-quality services for live operations or timely repairs. The reclosing device switching operation is a relatively frequent operation. Timely completion of the reclosing device operation can not only ensure the reliability of power supply but also meet the power demand of customers.

[0003] Since live operations are mostly temporary operations, and the substations are geographically dispersed and far away, manual switching faces the problems of untimely switching and waste of manpower. The difficulty of remote switching is to ensure the correct execution of switching, so it is difficult to apply to actual production. The existing solution proposes to indirectly detect the status of the pressure plate through the pressure plate position sensor or detect the circuit signal to solve the problem of remote switching monitoring. However, the position sensor needs to be installed on each pressure plate, which increases the maintenance work of the equipment. If the circuit trips due to a fault, or the circuit breaker itself fails, the circuit detection result is unreliable. At this time, it is difficult to accurately monitor the switching status, and the safety of the site cannot be guaranteed.

[0004] Based on this, there is an urgent need for a remote reclosing control solution that can accurately monitor the execution of the reclosing operation to ensure power demand and grid operation safety. Summary of the invention

[0005] The present invention provides a method and system for remote rapid switching on and off of a switch cabinet reclosing switch, so as to solve the problem that the remote reclosing switch switching on and off operation cannot accurately detect the switching on and off execution status and is difficult to ensure the safety of the operation.

[0006] The present invention is achieved through the following technical solutions:

[0007] A first aspect of the present invention provides a remote rapid switching method for a switch cabinet reclosing device, comprising:

[0008] Receiving a reclosing switch throw and release instruction, and determining an operation target and a target pressure plate according to the reclosing switch throw and release instruction;

[0009] Control the operation target to perform the reclosing operation, and obtain the reclosing operation video;

[0010] Detecting static image frames and moving image frames in the video using a frame difference method, and extracting images before and after the projection and retraction operation from the video based on the switching between static and moving states between the image frames;

[0011] Performing region segmentation on the front and rear images based on target detection to obtain a plurality of pressing plate images, and determining the image of the target pressing plate from the plurality of pressing plate images;

[0012] The throw-in / out state of the target pressure plate in the image of the target pressure plate is detected, and whether the throw-in / out operation is successful is determined according to the throw-in / out state of the target pressure plate before and after the throw-in / out operation and the throw-in / out instruction of the reclosing switch.

[0013] The present invention monitors the execution of the remote reclosing switch throw and retraction instructions based on machine vision. Multiple pressure plates can be monitored by a shooting device, which reduces the investment in monitoring equipment. In addition, the image detection is not affected by circuit failures, thereby ensuring the safety of remote throw and retraction. The method first determines the target pressure plate to be thrown and retracted and the remote operation target according to the throw and retraction instructions, and extracts the front and rear images from the video by the frame difference method. Only the front and rear images need to be used for pressure plate state recognition, which greatly reduces the image processing work. Based on the determined target pressure plate, the target pressure plate image can be quickly located from the captured image for detection, so that the detection algorithm can monitor multiple target pressure plates at the same time and quickly obtain the detection results. According to the change in the pressure plate state before and after the throw and retraction operation combined with the throw and retraction instructions, it is double-judged whether it is executed correctly, thereby ensuring the accuracy of the detection results.

[0014] Further, the determining of the operation target and the target pressure plate according to the throw and withdraw instruction includes:

[0015] Parse the reclosing switch throw and retraction instructions to obtain a remote control address, obtain a target pressure plate address based on the remote control address, and obtain an operation target for operating the target pressure plate throw and retraction based on the target pressure plate address; the target pressure plate address includes the switch cabinet information where the target pressure plate is located and the position information of the pressure plate in the switch cabinet.

[0016] Furthermore, before controlling the operating target to perform the reclosing operation, it also includes: obtaining the throwing and pulling status of the target pressure plate and the work plan table of the area where the operating target is located, determining whether the target pressure plate meets the throwing and pulling conditions according to the throwing and pulling status and the work calculation table, and if so, remotely sending the throwing and pulling instructions to the operating target so that the operating target performs the throwing and pulling operations on the target pressure plate.

[0017] Further, when the operation target's on / off state is on, and the work schedule shows that there is live work or maintenance plan in the current area, it is determined that the operation target meets the reclosing exit condition, and a reclosing switch on command is sent to the operation target;

[0018] When the operation target's on / off status is exited, and the work schedule shows that there is no live operation or maintenance plan in the current area, it is determined that the operation target meets the reclosing switch on / off conditions, and a reclosing switch exit instruction is sent to the operation target.

[0019] Furthermore, based on the switching of static and moving states between image frames, the images before and after the throwing and retraction operation are extracted from the video, including: taking the static image frame located at the beginning of the video as the image before the throwing and retraction operation of the reclosing switch, and taking the static image frame located at the end of the video as the image after the throwing and retraction operation of the reclosing switch.

[0020] Further, the detecting of the throw and retract state of the target pressure plate in the image of the target pressure plate, and judging whether the throw and retract operation is successful according to the throw and retract state of the target pressure plate before and after the throw and retract operation and the throw and retract instruction of the reclosing switch, include:

[0021] Gaussian filtering and sharpening are performed on the images of the target pressure plate before and after the throw-in and throw-out operations, and then target detection is performed to extract the reclosing pressure plate image;

[0022] Performing edge detection on the image of the reclosing brake pressure plate to extract contour features of the pressure plate;

[0023] The opening and closing angle of the pressure plate is calculated based on the contour features of the pressure plate to obtain the throwing and retracting state of the pressure plate. If the throwing and retracting state of the target pressure plate changes before and after the throwing and retracting operation, and the throwing and retracting state after the throwing and retracting operation corresponds to the throwing and retracting instruction of the reclosing switch, then it is determined that the throwing and retracting operation of the reclosing switch is successful, otherwise the operation fails.

[0024] Furthermore, the method also includes: obtaining a position detection signal of the reclosing switch pressure plate, determining the reclosing switch throw and retraction state according to the position detection signal, and comprehensively determining whether the reclosing switch throw and retraction operation is successful in combination with the image determination result.

[0025] A second aspect of the present invention provides a remote rapid switching system for switch cabinet reclosing, comprising a remote control terminal and an operation target;

[0026] The remote control terminal receives the reclosing switch throw and retraction instruction, determines the operation target and the target pressure plate according to the reclosing switch throw and retraction instruction, and controls the operation target to perform the reclosing switch throw and retraction operation;

[0027] After receiving the instruction, the operator performs the reclosing operation and takes a video of the operation;

[0028] The remote control terminal obtains the video of the insertion and withdrawal operation and performs image detection:

[0029] Detecting static image frames and moving image frames in the video using a frame difference method, and extracting images before and after the projection and retraction operation from the video based on the switching between static and moving states between the image frames;

[0030] Performing region segmentation on the front and rear images based on target detection to obtain a plurality of pressing plate images, and determining the image of the target pressing plate from the plurality of pressing plate images;

[0031] The throw-in / out state of the target pressure plate in the image of the target pressure plate is detected, and whether the throw-in / out operation is successful is determined according to the throw-in / out state of the target pressure plate before and after the throw-in / out operation and the throw-in / out instruction of the reclosing switch.

[0032] Furthermore, the operation target includes a PLC controller, a motor driver, a motor, a push rod and an industrial camera, the rear end of the push rod is connected to the motor, the front end of the push rod is connected to the reclosing plate, and the acquisition area of ​​the industrial camera covers at least one panel of a switch cabinet;

[0033] The PLC controller receives the throw and retract instruction, controls the industrial camera to collect throw and retract operation video, and sends a drive instruction to the motor driver;

[0034] The motor driver outputs a control signal to control the motor to rotate forward or reverse, thereby driving the push rod to extend or retract. When the push rod extends, it pushes the target pressure plate in, and when the push rod retracts, it drives the target pressure plate out.

[0035] Furthermore, the operation target also includes a position sensor, which is arranged at the rear end of the push rod; when the push rod is pushed out, the inspection result corresponding to the position sensor is input, and when the push rod is retracted, the inspection result corresponding to the position sensor is exit.

[0036] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0037] The execution of remote reclosing instructions is monitored based on machine vision. Multiple pressure plates can be monitored by one camera, which reduces the investment in monitoring equipment. In addition, image detection is not affected by circuit faults, ensuring the safety of remote reclosing.

[0038] The image before and after the injection and withdrawal are extracted based on the frame difference method, and the pressure plate image is positioned based on the determined target pressure plate, which reduces the image processing work. The detection algorithm can monitor a large number of target pressure plates at the same time and quickly obtain the detection results.

[0039] Before sending the throw and retract command, the throw and retract conditions of the target pressure plate are detected to avoid the issuance of inappropriate commands. After executing the throw and retract operation, whether it is successfully executed based on the collected image information is detected to ensure the correct execution of the command.

[0040] The execution results are comprehensively judged by combining the image processing results and the position detection signal of the throwing and retracting device, and the credibility of the detection results is improved through different source signals, further improving the safety of the operation. At the same time, the detection results of the pressure plate status can timely update the status of each operation target in the remote control center, providing a basis for correctly sending remote signal signals. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be regarded as limiting the scope. For those of ordinary skill in the art, other relevant drawings can be obtained based on these drawings without creative work. In the drawings:

[0042] Figure 1 It is a schematic diagram of a remote rapid switching-on and switching-off system of a switch cabinet reclosing device according to an embodiment of the present invention;

[0043] Figure 2 It is a flow chart of a method for remote rapid switching on and off of a switch cabinet reclosing according to an embodiment of the present invention;

[0044] Figure 3 It is a structural schematic diagram of a reclosing device according to an embodiment of the present invention;

[0045] Figure 4 It is a schematic diagram of an electronic device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0046] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0047] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to or inherent to other steps or units of the device.

[0048] The terms used in the various embodiments of the application are only used to describe the purpose of specific embodiments and are not intended to limit the various embodiments of the application. As used herein, the singular form is intended to also include the plural form, unless the context clearly indicates otherwise. Unless otherwise limited, all terms used here (including technical terms and scientific terms) have the same meaning as the meanings commonly understood by ordinary technicians in the field of the various embodiments of the application. The terms (such as the terms defined in the dictionary generally used) will be interpreted as having the same meaning as the contextual meaning in the relevant technical field and will not be interpreted as having an idealized meaning or an overly formal meaning, unless clearly defined in the various embodiments of the application.

[0049] The embodiments of the present invention provide a method and system for remote rapid launching and retreating of a switch cabinet reclosing switch, which is suitable for remotely controlling the launching and retreating of the reclosing switch, is conducive to ensuring the timeliness and safety of the remote launching and retreating, and reduces the manpower input on site.

[0050] like Figure 1 The schematic diagram of the remote rapid throw-in and throw-out system of the switch cabinet reclosing shown in the figure includes a remote control terminal and an operation target. The operation target is a reclosing throw-in and throw-out device located at a remote location, and is a remote control device for automatically throwing and throwing out the existing switch cabinet reclosing pressure plate. The remote control terminal receives the throw-in and throw-out instructions of the reclosing, and sends the throw-in and throw-out instructions to the remote operation target, and the operation target performs the throw-in or throw-out operation of the reclosing according to the instructions.

[0051] The reclosing switch throwing and retracting device is a mechanical transmission structure with electrical signal control, which simulates the manual throwing and retracting operation of the reclosing switch pressure plate. When the pressure plate is pushed closed, the reclosing switch is put into use, and when the pressure plate is released, the reclosing switch is withdrawn.

[0052] like Figure 2 The figure is a flow chart of a method for remote rapid reclosing of a switch cabinet according to an embodiment of the present invention, which is applied to Figure 1 The remote control terminal and operation target shown include the following steps.

[0053] S1, receiving the reclosing switch throw and release command, and determining the operation target and target pressure plate according to the reclosing switch throw and release command.

[0054] S2, controls the operation target to execute the reclosing operation and obtains the operation video.

[0055] S3, using the frame difference method to detect the static image frames and the moving image frames in the video, and based on the switching between the static and moving states between the image frames, extracting the images before and after the projection and retraction operation from the video.

[0056] S4, performing region segmentation on the front and rear images based on target detection to obtain a plurality of pressing plate images, and determining an image of a target pressing plate from the plurality of pressing plate images.

[0057] S5, detecting the throw and retract state of the target pressure plate in the image of the target pressure plate, and judging whether the throw and retract operation is successful according to the throw and retract state of the target pressure plate before and after the throw and retract operation and the throw and retract instruction of the reclosing switch.

[0058] The reclosing switch throw and exit instructions are input by the backstage staff. According to the maintenance plan, live operation plan or temporary emergency repair notice, the reclosing switch throw and exit strategy for the corresponding area is formulated, and the throw and exit control of the remote reclosing device is executed according to the plan. The reclosing switch throw and exit instructions include the reclosing switch throw and exit instructions, and the instructions include the address information and telesignal signal of the target pressure plate to be controlled. The address information includes the switch cabinet information where the target pressure plate is located, the target pressure plate itself information and the position information of the pressure plate in the switch cabinet. For example, the switch cabinet where the target pressure plate i is located is numbered v∈V, and V represents the set of switch cabinets. The approximate position of the target pressure plate in the image can be determined according to the preset position relationship, and the position of the target pressure plate can be located from the multiple pressure plates segmented from the image in combination with target detection. According to the address information of the target pressure plate, the information of the operation target associated with it can also be determined, and the throw and exit action of the pressure plate is mechanically executed through the operation target associated with it. The telesignal signal indicates whether the reclosing switch throw operation or the reclosing switch exit operation needs to be performed.

[0059] After the remote control terminal receives the reclosing switch on / off command, it first converts it into an electrical signal, parses the remote control address and remote signal, determines the operation target of the command based on the remote control address, and sends the parsed remote signal to the operation target.

[0060] In one implementation, before sending the remote signal, in order to ensure that the control instruction is correct, it is first determined whether the operation target meets the launch and retreat conditions, including the following steps.

[0061] S2-1, obtaining the launch and withdrawal status of the operation target and the work schedule of the area where the operation target is located.

[0062] S2-2, determine whether the target pressure plate meets the throw and retract conditions according to the throw and retract status and the work calculation table. If so, send the throw and retract command remotely to the operation target.

[0063] If the reclosing switch input conditions are met, the reclosing switch input command is sent to the operation target. If the reclosing switch exit conditions are met, the reclosing switch exit command is sent to the operation target, so that the operation target performs corresponding reclosing operations on the target pressure plate.

[0064] By judging the input and output status, it can be determined whether the control instruction type is correct. By using the work schedule, it can be determined whether the operation target issued by the control instruction is correct, thus avoiding instruction editing errors or misoperation.

[0065] Specifically, when the operation target's throw-in / out status is on, and the work schedule shows that there is live work or maintenance plan in the current area, it is determined that the target pressure plate meets the reclosing switch exit conditions; when the operation target's throw-in / out status is off, and the work schedule shows that there is no live work or maintenance plan in the current area, it is determined that the target pressure plate meets the reclosing switch entry conditions.

[0066] When the work schedule shows that there is a live operation or maintenance plan in the current area, it can be determined that the reclosing instructions for the operation target are within the plan. The reclosing exit instruction can be received before the live operation or maintenance, and the reclosing input instruction can be received after the live operation or maintenance is completed. According to the reclosing status before sending the instruction to the operation target, check whether the type of instruction currently issued is correct to avoid issuing invalid instructions or repeatedly issuing the same instruction. When the work schedule shows that there is no live operation or maintenance plan in the current area, the reclosing equipment in the current area is in the input state under normal conditions. If the reclosing state of the current target pressure plate is detected to be exited, the reclosing input instruction can be received. In case of unplanned emergency repair work, the work schedule can be changed for remote control, or manual on-site operation, which is more flexible.

[0067] After the command is sent and executed, the captured images during the execution process are detected to ensure that the reclosing switch throw and retraction command is correctly executed. In the present invention, based on the comparison between the before and after images, whether the reclosing switch throw and retraction operation is successful is determined, specifically including:

[0068] S3-1, Gaussian filtering and sharpening processing are performed on the images of the target pressure plate before and after the throwing and retracting operations, and then target detection is performed to extract the reclosing pressure plate image.

[0069] S3-2, perform edge detection on the image of the reclosing brake pressure plate and extract the contour features of the pressure plate.

[0070] S3-3, calculate the opening and closing angle of the pressure plate based on the contour features of the pressure plate to obtain the throwing and retracting state of the pressure plate. If the throwing and retracting state of the target pressure plate changes before and after the throwing and retracting operation, and the throwing and retracting state after the throwing and retracting operation corresponds to the throwing and retracting instruction of the reclosing switch, then it is determined that the throwing and retracting operation of the reclosing switch is successful, otherwise the operation fails.

[0071] The images before and after the reclosing operation are acquired by an industrial camera installed near the switch cabinet. The shooting range of the industrial camera covers at least one switch cabinet arranged side by side. Therefore, at least one reclosing pressure plate located on the switch cabinet panel can be monitored by an industrial camera. The time period in which the target performs the reclosing operation can be determined according to the time when the remote control device sends the command or the time when the target receives the command and the time when the execution result is fed back, so that the images before and after the execution can be captured. According to the changes in the target pressure plate in the front and back images, it can be determined whether the reclosing operation is executed in place, and according to the front and back images, the status of the target pressure plate before and after the execution can be obtained respectively.

[0072] There have been a lot of studies on the detection of the state of the pressure plate, mainly image processing methods based on straight line detection and angle detection and image recognition methods based on deep learning models. The image processing method is limited by the quality of the image itself and the processing algorithm. The deep learning model detection is more accurate and has better adaptability to the pressure plate, but the training process is more complicated. Since the position and angle of the pressure plate should change significantly before and after the correct execution of the throw-in and throw-out operation, this embodiment extracts the contour of the pressure plate based on the image detection algorithm, and determines the throw-in and throw-out execution status by comparing the angles of the target pressure plate in the front and rear images. Only two images need to be processed, the amount of calculation is greatly reduced, and the detection result has sufficient credibility. When controlling multiple reclosing pressure plates, the throw-in and throw-out execution status of multiple pressure plates can be quickly confirmed.

[0073] In one implementation, a static image frame and a moving image frame in a video are detected using a frame difference method, and images before and after the projection and retraction operation are extracted from the video based on the switching between the static and moving states between the image frames, specifically including:

[0074] S4-1, obtaining the operation video of the operation target performing the insertion and withdrawal operation.

[0075] S4-2, using a frame difference method to detect static image frames and motion image frames in the operation video.

[0076] S4-3, based on the switching between static and moving states between image frames, the static image frame at the beginning of the operation video is used as the image before the reclosing switch is thrown or retracted, and the static image frame at the end of the operation video is used as the image after the reclosing switch is thrown or retracted.

[0077] This embodiment provides another method for obtaining images before and after execution, which is more accurate than obtaining images by execution time. Since the reclosing plate is stationary before and after the throw and retract operation, and is in motion during the throw and retract operation, the static image frame and the motion image frame can be determined by detecting the pixel values ​​of the two frames of images before and after the throw and retract operation based on the frame difference method. According to the switching process of the image from static-dynamic-static during the throw and retract operation, the static image frame of the first part can be determined as the comparison image before and after the throw and retract operation.

[0078] Furthermore, if no motion image frames are detected in the operation video, or the number of motion image frames is less than a preset number threshold, it means that the throw-in / out operation is not performed, and it is determined that the throw-in / out operation of the reclosing switch has failed.

[0079] If the reclosing operation fails, the failed operation target is marked and a failure prompt message is sent to the back-end staff. The back-end staff can resend the instruction or arrange personnel to handle it on site.

[0080] Furthermore, a position sensor is provided on the remote reclosing plate to detect the position signal of the plate, and the opening and closing state of the plate can also be determined. The reclosing throw and retraction state can be determined according to the position detection signal, and the reclosing throw and retraction operation can be comprehensively determined based on the image comparison result in the above embodiment. After the reclosing throw and retraction operation is successful, the throw and retraction state of the operation target in the remote control terminal is updated.

[0081] The embodiment of the present invention also provides a remote rapid reclosing system for a switch cabinet, such as Figure 1 As shown, it includes a remote control terminal and an operation target;

[0082] The remote control terminal receives the reclosing switch throw and retraction instructions, determines the operation target and the target pressure plate according to the reclosing switch throw and retraction instructions, and controls the operation target to perform the reclosing switch throw and retraction operations;

[0083] After receiving the command, the operator will execute the reclosing operation and take a video of the operation;

[0084] The remote control terminal obtains the video of the insertion and withdrawal operation and performs image detection:

[0085] The static image frames and moving image frames in the video are detected by using the frame difference method, and the images before and after the projection and retraction operation are extracted from the video based on the switching between the static and moving states between the image frames;

[0086] Performing region segmentation on the front and rear images based on target detection to obtain a plurality of pressing plate images, and determining an image of a target pressing plate from the plurality of pressing plate images;

[0087] Detect the throw-in / out state of the target pressure plate in the image of the target pressure plate, and determine whether the throw-in / out operation is successful based on the throw-in / out state of the target pressure plate before and after the throw-in / out operation and the throw-in / out instruction of the reclosing switch.

[0088] In one embodiment, Figure 3 The structural schematic diagram of the reclosing device shown includes a PLC controller 301, a motor driver 302, a motor 303, a push rod 304 and an industrial camera 305. The rear end of the push rod is connected to the motor, the front end of the push rod is connected to the reclosing plate, and the acquisition area of ​​the industrial camera covers at least one panel of a switch cabinet;

[0089] The PLC controller receives the remote signal, controls the industrial camera to collect the platen image, and converts the remote signal into a motor drive signal and sends it to the motor driver;

[0090] The motor driver outputs a control signal to control the motor to rotate forward or reverse, driving the push rod to extend or retract. When the push rod extends, it pushes the reclosing pressure plate in, and when the push rod retracts, it drives the reclosing pressure plate out.

[0091] Furthermore, the operation target also includes a position sensor, which is arranged at the rear end of the push rod; when the push rod is pushed out, the corresponding inspection result of the position sensor is input, and when the push rod is retracted, the corresponding inspection result of the position sensor is exit.

[0092] An embodiment of the present invention further provides an electronic device, such as Figure 4 As shown, Figure 4 FIG. 4 is a schematic diagram of the structure of an electronic device of the present invention, wherein the electronic device comprises a processor 40, a memory 41, an input device 42, an output device 43 and a communication device 44; the number of processors 40 in the computer device can be one or more. Figure 4 The processor 40, the memory 41, the input device 42 and the output device 43 in the electronic device can be connected by a bus or other means. Figure 4 The example of connecting through bus is taken in the following.

[0093] The memory 41 is a computer-readable storage medium that can be used to store software programs, computer executable programs, and modules. The processor 40 executes various functional applications and data processing of the electronic device by running the software programs, instructions, and modules stored in the memory 41, so as to implement the remote rapid switching method of the switch cabinet reclosing according to any of the above embodiments of the present invention.

[0094] The memory 41 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system and at least one application required for a function; the data storage area may store data created according to the use of the terminal, etc. In addition, the memory 41 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some instances, the memory 41 may further include a memory remotely arranged relative to the processor 40, and these remote memories may be connected to the electronic device via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0095] The input device 42 may be used to receive external data such as user ID, instructions, multi-view data, etc., and the output device 43 may be used to output intermediate data, solution results, clustering results, network configuration pages, etc.

[0096] The embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the remote rapid switching method of the switch cabinet reclosing device of any embodiment of the present invention is implemented. The storage medium can be ROM / RAM, a magnetic disk, an optical disk, etc.

[0097] An embodiment of the present invention further provides a computer program product. When the computer program product is run on a computer, the computer is enabled to execute the remote rapid switching method for switch cabinet reclosing according to any of the above embodiments of the present invention.

[0098] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A remote rapid reclosing method for a switch cabinet, characterized in that: include: Receiving a reclosing switch throw and release instruction, and determining an operation target and a target pressure plate according to the reclosing switch throw and release instruction; Control the operation target to perform the reclosing operation, and obtain the reclosing operation video; Detecting static image frames and moving image frames in the video using a frame difference method, and extracting images before and after the projection and retraction operation from the video based on the switching between static and moving states between the image frames; Performing region segmentation on the front and rear images based on target detection to obtain a plurality of pressing plate images, and determining the image of the target pressing plate from the plurality of pressing plate images; The throw-in / out state of the target pressure plate in the image of the target pressure plate is detected, and whether the throw-in / out operation is successful is determined according to the throw-in / out state of the target pressure plate before and after the throw-in / out operation and the throw-in / out instruction of the reclosing switch.

2. The remote rapid reclosing method for switch cabinet according to claim 1 is characterized in that: Determining the operation target and the target pressure plate according to the insertion and withdrawal instructions includes: Parse the reclosing switch throw and retraction instructions to obtain a remote control address, obtain a target pressure plate address based on the remote control address, and obtain an operation target for operating the target pressure plate throw and retraction based on the target pressure plate address; the target pressure plate address includes the switch cabinet information where the target pressure plate is located and the position information of the pressure plate in the switch cabinet.

3. The remote rapid reclosing method for switch cabinet according to claim 1 is characterized in that: Before controlling the operating target to perform the reclosing operation, it also includes: obtaining the throwing and pulling status of the target pressure plate and the work schedule of the area where the operating target is located, determining whether the target pressure plate meets the throwing and pulling conditions according to the throwing and pulling status and the work calculation table, and if so, remotely sending the throwing and pulling instructions to the operating target so that the operating target performs the throwing and pulling operations on the target pressure plate.

4. The remote rapid reclosing method for switch cabinet according to claim 3 is characterized in that: When the operation target's on / off state is on, and the work schedule shows that there is live work or maintenance plan in the current area, it is determined that the operation target meets the reclosing exit condition, and a reclosing switch on command is sent to the operation target; When the operation target's on / off status is exited, and the work schedule shows that there is no live operation or maintenance plan in the current area, it is determined that the operation target meets the reclosing switch on / off conditions, and a reclosing switch exit instruction is sent to the operation target.

5. The remote rapid switching method for switch cabinet reclosing according to claim 1 is characterized in that: The method extracts images before and after the throwing and retraction operation from the video based on the switching between static and motion states between image frames, including: taking the static image frame located at the beginning of the video as the image before the throwing and retraction operation of the reclosing switch, and taking the static image frame located at the end of the video as the image after the throwing and retraction operation of the reclosing switch.

6. The remote rapid switching method for switch cabinet reclosing according to claim 1 is characterized in that: The detecting the throw-in / out state of the target pressure plate in the image of the target pressure plate, and judging whether the throw-in / out operation is successful according to the throw-in / out state of the target pressure plate before and after the throw-in / out operation and the throw-in / out instruction of the reclosing switch, comprises: Gaussian filtering and sharpening are performed on the images of the target pressure plate before and after the throw-in and throw-out operations, and then target detection is performed to extract the reclosing pressure plate image; Performing edge detection on the image of the reclosing brake pressure plate to extract contour features of the pressure plate; The opening and closing angle of the pressure plate is calculated based on the contour features of the pressure plate to obtain the throwing and retracting state of the pressure plate. If the throwing and retracting state of the target pressure plate changes before and after the throwing and retracting operation, and the throwing and retracting state after the throwing and retracting operation corresponds to the throwing and retracting instruction of the reclosing switch, then it is determined that the throwing and retracting operation of the reclosing switch is successful, otherwise the operation fails.

7. The remote rapid switching method for switch cabinet reclosing according to any one of claims 1 to 6, characterized in that: The method further includes: obtaining a position detection signal of the reclosing switch pressure plate, determining the reclosing switch throw / retract state according to the position detection signal, and comprehensively determining whether the reclosing switch throw / retract operation is successful in combination with the image determination result.

8. A remote rapid reclosing system for a switch cabinet, comprising a remote control terminal and an operation target; The remote control terminal receives the reclosing switch throw and retraction instruction, determines the operation target and the target pressure plate according to the reclosing switch throw and retraction instruction, and controls the operation target to perform the reclosing switch throw and retraction operation; After receiving the instruction, the operator performs the reclosing operation and takes a video of the operation; The remote control terminal obtains the video of the insertion and withdrawal operation and performs image detection: Detecting static image frames and moving image frames in the video using a frame difference method, and extracting images before and after the projection and retraction operation from the video based on the switching between static and moving states between the image frames; Performing region segmentation on the front and rear images based on target detection to obtain a plurality of pressing plate images, and determining the image of the target pressing plate from the plurality of pressing plate images; The throw-in / out state of the target pressure plate in the image of the target pressure plate is detected, and whether the throw-in / out operation is successful is determined according to the throw-in / out state of the target pressure plate before and after the throw-in / out operation and the throw-in / out instruction of the reclosing switch.

9. The remote rapid reclosing system for switch cabinet according to claim 8, characterized in that: The operation target includes a PLC controller, a motor driver, a motor, a push rod and an industrial camera, the rear end of the push rod is connected to the motor, the front end of the push rod is connected to the reclosing plate, and the collection area of ​​the industrial camera covers at least one panel of a switch cabinet; The PLC controller receives the throw and retract instruction, controls the industrial camera to collect throw and retract operation video, and sends a drive instruction to the motor driver; The motor driver outputs a control signal to control the motor to rotate forward or reverse, thereby driving the push rod to extend or retract. When the push rod extends, it pushes the target pressure plate to move in, and when the push rod retracts, it drives the target pressure plate to withdraw.

10. The remote rapid reclosing system for switch cabinet according to claim 9, characterized in that: The operation target also includes a position sensor, which is arranged at the rear end of the push rod; when the push rod is pushed out, the corresponding inspection result of the position sensor is input, and when the push rod is retracted, the corresponding inspection result of the position sensor is exit.

Images