Verification method and device for substation monitoring system

Abstract

The present invention provides a verification method and device for a substation monitoring system, which can be applied to the field of power grid substation monitoring system testing. The verification method includes: obtaining an initial monitoring image based on data simulation communication between each control device and the monitoring system in the target substation; triggering the signal change of each control device according to the signal sequence to be tested, and obtaining the target monitoring image and signal change trigger record information; wherein the signal sequence to be tested is obtained by parsing the monitoring screen signal sequence file of the monitoring system; respectively identifying the initial monitoring image and the target monitoring image to obtain the first signal state change information of each control device; and generating the first verification result of the monitoring system by comparing the signal change trigger record information and the first signal state change information of each control device.

Description

Technical Field

[0001] The invention relates to the technical field of testing a monitoring system for a power grid substation, and in particular to a calibration method and a device for a monitoring system for a substation. Background Art

[0002] The automatic point-to-point method of monitoring screen information is a technical means for power system monitoring and management, aiming to realize the automatic verification and validation of the power system. However, the automatic point-to-point method of monitoring information currently used mainly verifies the event database or screen database data, and reads the database data as a closed-loop verification, which only ensures the correctness of data reception and storage. The operation of the substation monitoring system is based on the monitoring screen for monitoring and operation. However, in the automatic point-to-point method of monitoring information currently used, the actual main wiring diagram, interval sub-diagram and equipment status information in the monitoring screen are not involved in the actual verification. To address this problem, the current main verification acceptance method is manually checked. For example, when a signal point is triggered, it is necessary to check whether the behavior displayed on the screen of the switch device is correct by human eyes, but this method takes a lot of time, resulting in a long debugging cycle of the monitoring system and very low efficiency of on-site debugging and acceptance. Summary of the invention

[0003] In view of the above problems, the present invention provides a calibration method and device for a substation monitoring system.

[0004] According to one aspect of the present invention, a verification method for a substation monitoring system is provided, comprising: obtaining an initial monitoring image based on data simulation communication between each control device in a target substation and a monitoring system; triggering a signal change of each control device according to a signal sequence to be tested, and obtaining a target monitoring image and signal change trigger record information; wherein the signal sequence to be tested is obtained by parsing a monitoring screen signal sequence file of the monitoring system; respectively identifying the initial monitoring image and the target monitoring image to obtain first signal state change information of each control device; and generating a first verification result of the monitoring system by comparing the signal change trigger record information with the first signal state change information of each control device.

[0005] According to an embodiment of the present invention, the initial monitoring image and the target monitoring image are respectively identified to obtain the first signal state change information of each control device, including: the initial monitoring image and the target monitoring image are respectively identified to obtain image difference information; the image difference information includes the attribute information of the graphic elements that have changed before and after the signal is shifted; and based on the target mapping relationship between each predetermined graphic element and the signal description information of each control device, the first signal state change information of each control device is generated according to the image difference information.

[0006] According to an embodiment of the present invention, the initial monitoring image and the target monitoring image are respectively identified to obtain image difference information, including: respectively extracting initial image features of the initial monitoring image and target image features of the target monitoring image; identifying the initial image features to obtain initial attribute information of each graphic element corresponding to each control device in the initial monitoring image; identifying the target image features to obtain target attribute information of each graphic element corresponding to each control device in the target monitoring image; and obtaining image difference information based on the initial attribute information of each graphic element and the target attribute information of each graphic element.

[0007] According to an embodiment of the present invention, initial image features are identified to obtain initial attribute information of each graphic element corresponding to each control device in the initial monitoring image, including: performing image recognition on the initial image features to obtain each graphic element type; and matching each graphic element type with a predetermined graphic element library to obtain initial attribute information of each graphic element; wherein the predetermined graphic element library includes a mapping relationship between each predetermined graphic element type and the device attribute of each predetermined graphic element.

[0008] According to an embodiment of the present invention, the verification method of the above-mentioned substation monitoring system also includes: performing graphic element recognition on the initial monitoring image to obtain connection relationship information between each graphic element; performing text recognition on the descriptive text located at each graphic element in the initial monitoring image to obtain text identification information of each graphic element; and determining the target mapping relationship from the monitoring screen signal sequence file based on the text identification information of each graphic element and the connection relationship information between each graphic element.

[0009] According to an embodiment of the present invention, a target mapping relationship is determined from a monitoring screen signal sequence file based on text identification information of each graphic element and connection relationship information between each graphic element, including: determining candidate signal description information corresponding to the text identification information from the monitoring screen signal sequence file based on the text identification information of each graphic element; determining each target signal description information corresponding to each graphic element from the candidate signal description information based on the connection relationship information between each graphic element; and constructing a target mapping relationship based on each graphic element and each target signal description information.

[0010] According to an embodiment of the present invention, an initial monitoring image is obtained based on data simulation communication between each control device in a target substation and a monitoring system, including: obtaining a logical configuration relationship and communication parameters between each control device in the target substation by parsing configuration information of the target substation; and sending a simulation signal to the monitoring system based on the logical configuration relationship and communication parameters between each control device to obtain an initial monitoring image.

[0011] According to an embodiment of the present invention, a first verification result of the monitoring system is generated by comparing the signal position change trigger record information and the first signal state change information of each control device, including: comparing the signal position change trigger record information and the first signal state change information of each control device according to the signal type to obtain a comparison result; in response to the comparison result being that the signal position change trigger record information is the same as the first signal state change information of each control device, generating a verification result for characterizing the signal accuracy of the monitoring system; and in response to the comparison result being that the signal position change trigger record information is different from the first signal state change information of each control device, generating a verification result for characterizing the signal error of the monitoring system.

[0012] According to an embodiment of the present invention, the verification method of the substation monitoring system further includes: in response to executing a control operation on a target device based on a remote control instruction, obtaining a first monitoring image and a second monitoring image from the monitoring system; wherein the first monitoring image is obtained before the control operation is executed on the target device; and the second monitoring image is obtained after the control operation is executed on the target device; and respectively identifying the first monitoring image and the second monitoring image to obtain second signal state change information of each control device. By comparing the remote control instruction and the second signal state change information of each control device, a second verification result of the monitoring system is generated.

[0013] Another aspect of the present invention provides a fault location device for an energy storage power station, comprising: a first acquisition module, a second acquisition module, a first identification module and a first verification module.

[0014] The first acquisition module is used to acquire the initial monitoring image based on the data simulation communication between each control device and the monitoring system in the target substation; the second acquisition module is used to trigger the signal change of each control device according to the signal sequence to be tested, and acquire the target monitoring image and the signal change trigger record information; wherein the signal sequence to be tested is obtained by parsing the monitoring screen signal sequence file of the monitoring system; the first identification module is used to identify the initial monitoring image and the target monitoring image respectively, and obtain the first signal state change information of each control device; and the first verification module is used to generate the first verification result of the monitoring system by comparing the signal change trigger record information and the first signal state change information of each control device.

[0015] According to an embodiment of the present invention, an initial monitoring image is obtained by establishing data simulation communication between each control device and the monitoring system in the target substation. By parsing the monitoring screen signal sequence file of the monitoring system, a signal sequence to be tested is obtained, and the signal change of each control device is triggered according to the signal sequence to be tested, without the need to manually trigger the signal change, and the target monitoring image and signal change trigger record information after the signal change occurs are obtained. By identifying and comparing the initial monitoring image and the target monitoring image, a verification result is generated, and the verification process of the monitoring system is completed. This process is based on the image recognition technology of the monitoring screen, and the state change information of the monitoring system screen is obtained in real time, so as to realize the automatic closed-loop verification of the remote signal, telemetry, and remote control signals of the monitoring system screen without manual verification, thereby reducing the probability of manual verification of information errors and improving the efficiency of relevant personnel in debugging the system based on the verification results. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and other objects, features and advantages of the present invention will become more apparent through the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

[0017] Figure 1 An application scenario diagram of a verification method for a substation monitoring system according to an embodiment of the present invention is shown;

[0018] Figure 2 A flow chart showing a verification method of a substation monitoring system according to an embodiment of the present invention is shown;

[0019] Figure 3 A schematic diagram of a process of generating first signal state change information of each control device according to an embodiment of the present invention is shown;

[0020] Figure 4 A flow chart of generating image difference information according to an embodiment of the present invention is shown;

[0021] Figure 5 A flowchart of generating initial attribute information according to an embodiment of the present invention is shown;

[0022] Figure 6 A schematic diagram showing an interval sub-image in an initial monitoring image according to an embodiment of the present invention is shown;

[0023] Figure 7 A schematic diagram showing another interval sub-image in an initial monitoring image according to an embodiment of the present invention is shown;

[0024] Figure 8 A schematic diagram of a device for implementing a calibration method for a substation monitoring system according to an embodiment of the present invention is shown;

[0025] Fig. 9A structural block diagram of a calibration device for a substation monitoring system according to an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0026] Below, embodiments of the present invention will be described with reference to the accompanying drawings. However, it should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present invention. In the following detailed description, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of embodiments of the present invention. However, it is apparent that one or more embodiments may also be implemented without these specific details. In addition, in the following description, descriptions of known structures and technologies are omitted to avoid unnecessary confusion of concepts of the present invention.

[0027] The terms used herein are only for describing specific embodiments and are not intended to limit the present invention. The terms "comprise", "include", etc. used herein indicate the existence of the features, steps, operations and / or components, but do not exclude the existence or addition of one or more other features, steps, operations or components.

[0028] All terms (including technical and scientific terms) used herein have the meanings commonly understood by those skilled in the art unless otherwise defined. It should be noted that the terms used herein should be interpreted as having a meaning consistent with the context of this specification and should not be interpreted in an idealized or overly rigid manner.

[0029] When using expressions such as "at least one of A, B, and C, etc.", they should generally be interpreted according to the meaning of the expression commonly understood by those skilled in the art (for example, "a system having at least one of A, B, and C" should include but is not limited to a system having A alone, B alone, C alone, A and B, A and C, B and C, and / or A, B, C, etc.).

[0030] The automatic point-to-point method for monitoring screen information is a technical means for monitoring and managing power systems, aiming to realize the automatic verification and validation of power systems. However, the automatic point-to-point method for monitoring information currently used mainly verifies the event database or screen database data, and reads the database data as a closed-loop verification, which only ensures the correctness of data reception and storage.

[0031] The operation of the substation monitoring system is based on the monitoring screen for monitoring and operation. However, in the current automatic point-to-point method of monitoring information, the actual main wiring diagram, interval sub-diagram and equipment status information in the monitoring screen are not involved in the actual verification. To address this problem, the current main verification method is the manual verification acceptance method. For example, when a signal point is triggered, it is necessary to check with the human eye whether the behavior displayed on the screen of the switch device is correct, but this method consumes a lot of time, resulting in a long debugging cycle of the monitoring system and very low efficiency of on-site debugging and acceptance.

[0032] In view of this, an embodiment of the present invention provides a verification method for a substation monitoring system, by establishing data simulation communication between each control device in a target substation and a monitoring system, to obtain an initial monitoring image. By parsing the monitoring screen signal sequence file of the monitoring system, a signal sequence to be tested is obtained, and the signal change of each control device is triggered according to the signal sequence to be tested, without the need to manually trigger the signal change, and the target monitoring image and signal change trigger record information after the signal change occurs are obtained. By identifying and comparing the initial monitoring image and the target monitoring image, a verification result is generated, and the verification process of the monitoring system is completed. This process is based on the image recognition technology of the monitoring screen, and the state change information of the monitoring system screen is obtained in real time, so as to realize the automatic closed-loop verification of the remote signal, telemetry, and remote control signals of the monitoring system screen without manual verification, thereby reducing the probability of error in manual verification of information and improving the efficiency of relevant personnel in debugging the system based on the verification results.

[0033] Figure 1 An application scenario diagram of a verification method for a substation monitoring system according to an embodiment of the present invention is shown.

[0034] like Figure 1 As shown, the application scenario 100 according to this embodiment may include a first terminal device 101, a second terminal device 102, a third terminal device 103, a network 104, and a server 105. The network 104 is used to provide a medium for a communication link between the first terminal device 101, the second terminal device 102, the third terminal device 103, and the server 105. The network 104 may include various connection types, such as wired, wireless communication links, or optical fiber cables, etc.

[0035] The user can use the first terminal device 101, the second terminal device 102, and the third terminal device 103 to interact with the server 105 through the network 104 to receive or send messages, etc. Various communication client applications can be installed on the first terminal device 101, the second terminal device 102, and the third terminal device 103, such as shopping applications, web browser applications, search applications, instant messaging tools, email clients, social platform software, etc. (only for example).

[0036] The first terminal device 101, the second terminal device 102, and the third terminal device 103 may be various electronic devices having display screens and supporting web browsing, including but not limited to smart phones, tablet computers, laptop computers, desktop computers, and the like.

[0037] The server 105 may be a server that provides various services, such as a background management server (only as an example) that provides support for websites browsed by users using the first terminal device 101, the second terminal device 102, and the third terminal device 103. The background management server may analyze and process the received data such as user requests, and feed back the processing results (such as web pages, information, or data obtained or generated according to user requests) to the terminal device.

[0038] It should be noted that the verification method of the substation monitoring system provided in the embodiment of the present invention can generally be executed by the server 105. Accordingly, the verification device of the substation monitoring system provided in the embodiment of the present invention can generally be set in the server 105. The verification method of the substation monitoring system provided in the embodiment of the present invention can also be executed by a server or server cluster that is different from the server 105 and can communicate with the first terminal device 101, the second terminal device 102, the third terminal device 103 and / or the server 105. Correspondingly, the verification device of the substation monitoring system provided in the embodiment of the present invention can also be set in a server or server cluster that is different from the server 105 and can communicate with the first terminal device 101, the second terminal device 102, the third terminal device 103 and / or the server 105.

[0039] Alternatively, the verification method of the substation monitoring system provided in the embodiment of the present invention may also be executed by the first terminal device 101, the second terminal device 102, and the third terminal device 103, or may also be executed by other terminal devices different from the first terminal device 101, the second terminal device 102, and the third terminal device 103. Accordingly, the verification device of the substation monitoring system provided in the embodiment of the present invention may also be arranged in the first terminal device 101, the second terminal device 102, and the third terminal device 103, or may be arranged in other terminal devices different from the first terminal device 101, the second terminal device 102, and the third terminal device 103.

[0040] It should be understood that Figure 1 The number of terminal devices, networks and servers in the embodiment is only for illustration. Any number of terminal devices, networks and servers may be provided according to implementation requirements.

[0041] The following will be based on Figure 1 The scene described by Figure 2~Figure 8 The calibration method of the substation monitoring system according to the embodiment of the invention is described in detail.

[0042] Before implementing the verification method of the substation monitoring system, the common equipment graphics are first standardized and modeled according to the specification "Electric Power System Graphic Description Specification". According to the main wiring diagram and bay sub-diagram of the substation, voltage level, and bay type, a predetermined graphics library containing primary equipment graphics such as switch blades, connection line graphics, pressure plate graphics, light sign graphics, and telemetry graphics is established, and all graphics state attributes in each monitoring system screen are defined, including graphics color, shape, value and other attributes.

[0043] For example, the shape of primary equipment switches such as switch knife switches is defined as a rectangle, with red representing the closed position and green representing the open position; the shape and status of knife switches and grounding switches are defined, with connected for closed position and pulled apart for open position; the shape of the pressure plate graphic element is defined, with connected for input and separated for output; the text on the light-emitting sign represents the signal description, with red representing the signal set to 1 and green representing the signal set to 0; the shape of the telemetry graphic element is digital text, and the numbers represent the telemetry values.

[0044] By establishing a predetermined graphic element library, intelligent recognition of various graphic element states of monitoring systems from different manufacturers can be achieved, greatly improving the safety and accuracy of monitoring system screen signal debugging.

[0045] Furthermore, according to the specification, drawing attributes such as coordinates, size, rotation, etc. can be added to the graphic object, and the design size of the graphic object can be standardized.

[0046] Figure 2 A flow chart of a verification method for a substation monitoring system according to an embodiment of the present invention is shown.

[0047] like Figure 2 As shown, the verification method 200 of the substation monitoring system of this embodiment includes operations S210 to S240.

[0048] In operation S210, an initial monitoring image is acquired based on data simulation communication between each control device in the target substation and the monitoring system.

[0049] In operation S220, the signal change of each control device is triggered according to the signal sequence to be tested, and the target monitoring image and signal change trigger record information are obtained.

[0050] In operation S230, the initial monitoring image and the target monitoring image are respectively identified to obtain first signal state change information of each control device.

[0051] In operation S240, a first verification result of the monitoring system is generated by comparing the signal change trigger record information with the first signal state change information of each control device.

[0052] According to an embodiment of the present invention, a connection between each control device in the target substation and a monitoring system is established through data simulation communication to obtain an initial monitoring image, wherein the control device may be a circuit breaker, a switch, a fuse, a contactor, etc.

[0053] According to an embodiment of the present invention, the signal sequence to be tested is obtained by parsing the monitoring screen signal sequence file of the monitoring system, and the parsing process supports parsing monitoring screen signal sequence files in different formats of manufacturers. The monitoring screen signal sequence file exported by the monitoring host includes all data objects and data description information in the monitoring screen, such as the substation name, voltage level, interval type, interval description information corresponding to the monitoring screen signal sequence file, and all signal descriptions, references, data types, telemetry coefficients and other attribute information contained in the monitoring screen.

[0054] In addition to extracting the above information, the analysis process can also generate a monitoring screen signal database with the above information, and visually display all signal sequences in the monitoring screen. The calibration method for the above substation monitoring system can automatically or manually trigger signals according to the signal sequence to be tested.

[0055] According to an embodiment of the present invention, the monitoring image generated after the control device has a signal change is the target monitoring image, and the signal change trigger record information includes the trigger signal change time, the trigger signal change type, the name of the control device where the signal change occurs, and the specific status information. For example, the signal change trigger record information is: at time t, the remote signal signal, the 221 switch position, changed from "closed position" to "open position".

[0056] According to an embodiment of the present invention, the initial monitoring image and the target monitoring image are identified, and the first signal state change information of each control device is obtained in real time. The first signal state change information is the signal state change information generated when the remote signal and telemetry signal verification instructions are executed.

[0057] The telesignal signal carries a unique SOE time stamp for signal position change triggering, and supports automatic signal position change in sequence according to "action-reset". The telemetry signal triggers signal position change by assigning a unique telemetry value, and supports automatic triggering in a point-by-point accumulation manner. By comparing the signal position change trigger record information and the first signal state change information obtained after executing the telemetry and telesignal signal verification instructions, the first verification result of the monitoring system is generated, that is, the automatic verification result report of the telesignal and telemetry signals is generated.

[0058] According to an embodiment of the present invention, an initial monitoring image is obtained by establishing data simulation communication between each control device and the monitoring system in the target substation. By parsing the monitoring screen signal sequence file of the monitoring system, a signal sequence to be tested is obtained, and the signal change of each control device is triggered according to the signal sequence to be tested, without the need to manually trigger the signal change, and the target monitoring image and signal change trigger record information after the signal change occurs are obtained. By identifying and comparing the initial monitoring image and the target monitoring image, a verification result is generated, and the verification process of the monitoring system is completed. This process is based on the image recognition technology of the monitoring screen, and the state change information of the monitoring system screen is obtained in real time, so as to realize the automatic closed-loop verification of the remote signal, telemetry, and remote control signals of the monitoring system screen without manual verification, thereby reducing the probability of manual verification of information and improving the efficiency of relevant personnel in debugging the system.

[0059] According to an embodiment of the present invention, the initial monitoring image and the target monitoring image are respectively identified to obtain the first signal state change information of each control device, including: the initial monitoring image and the target monitoring image are respectively identified to obtain image difference information; the image difference information includes the attribute information of the graphic elements that have changed before and after the signal is shifted; and based on the target mapping relationship between each predetermined graphic element and the signal description information of each control device, the first signal state change information of each control device is generated according to the image difference information.

[0060] According to an embodiment of the present invention, the primitive attribute information includes attribute information such as primitive color, shape and value.

[0061] Figure 3 A schematic diagram of a process of generating first signal state change information of each control device according to an embodiment of the present invention is shown.

[0062] like Figure 3 As shown, the first initial monitoring image 310 and the first target monitoring image 320 are identified, and the first initial monitoring image 310 includes the BR circuit breaker and the IS switch being opened, and the first target monitoring image 320 includes the BR circuit breaker and the IS switch being connected, thereby obtaining the first image difference information 330. The first image difference information 330 includes the attribute information of the graphic element "IS switch" that has changed before and after the signal is changed. Based on the target mapping relationship 340 between each predetermined graphic element and the signal description information of each control device, the first signal state change information 350 of the control device IS switch is generated: at time t, the remote signal signal, the IS switch position, changes from "open position" to "closed position".

[0063] According to an embodiment of the present invention, by identifying the initial monitoring image and the target monitoring image, image difference information is obtained, and based on the target mapping relationship, the first signal state change information of each control device is generated, thereby realizing real-time collection of monitoring screen change information, intelligent positioning of graphics elements with status changes, and generating signal state change information for verification of the substation monitoring system.

[0064] According to an embodiment of the present invention, the initial monitoring image and the target monitoring image are respectively identified to obtain image difference information, including: respectively extracting initial image features of the initial monitoring image and target image features of the target monitoring image; identifying the initial image features to obtain initial attribute information of each graphic element corresponding to each control device in the initial monitoring image; identifying the target image features to obtain target attribute information of each graphic element corresponding to each control device in the target monitoring image; and obtaining image difference information based on the initial attribute information of each graphic element and the target attribute information of each graphic element.

[0065] Figure 4 A flow chart of generating image difference information according to an embodiment of the present invention is shown.

[0066] like Figure 4 As shown, the extraction operation is performed on the second initial monitoring image 401 generated at time t1 and the second target monitoring image 402 generated at time t2 to obtain the first initial image feature 403 and the first target image feature 404. For example, the first initial image feature 403 is "221 isolation switch is open, 220 switch is red", and the target image feature is "221 isolation switch is connected, 220 switch is red". The recognition operation is performed on the first initial image feature 403 and the first target image feature 404 to obtain the first initial attribute information 405 of each graphic element corresponding to each control device in the initial monitoring image and the first target attribute information 406 of each graphic element corresponding to each control device in the target monitoring image. For example, the first initial attribute information 405 obtained is "221 isolation switch is open, 220 switch is closed", and the first target attribute information 406 obtained is "221 isolation switch is closed, 220 switch is closed". According to the first initial attribute information 405 and the first target attribute information 406, the second image difference information 407 is obtained. For example, the second image difference information 407 is "221 isolation knife switch".

[0067] According to an embodiment of the present invention, the initial monitoring image and the target monitoring image are identified respectively to obtain image difference information, which also includes: calculating the similarity of the difference image areas between the initial monitoring image and the target monitoring image through a neural network model after completing primitive recognition training to directly obtain the image difference information, which will not be repeated here.

[0068] According to the embodiment of the present invention, by extracting the initial image features of the initial monitoring image and the target image features of the target monitoring image respectively, the respective initial attribute information and target attribute information are obtained, and the image difference information is obtained according to the initial attribute information of each graphic element and the target attribute information of each graphic element. By extracting and comparing the monitoring image features before and after the signal is shifted, the image difference information is accurately generated, the intelligent positioning of the graphic element whose state changes before and after the signal is shifted is realized, and the automatic verification and validation of the monitoring image in the power system is effectively completed.

[0069] According to an embodiment of the present invention, initial image features are identified to obtain initial attribute information of each graphic element corresponding to each control device in the initial monitoring image, including: performing image recognition on the initial image features to obtain each graphic element type; and matching each graphic element type with a predetermined graphic element library to obtain initial attribute information of each graphic element; wherein the predetermined graphic element library includes a mapping relationship between each predetermined graphic element type and the device attribute of each predetermined graphic element.

[0070] Figure 5 A flowchart of generating initial attribute information according to an embodiment of the present invention is shown.

[0071] like Figure 5 As shown, an edge detection algorithm is applied to identify the lines and boundaries in the second initial image feature 501, extract key features, identify electrical symbols and icons in the main wiring diagram and the interval sub-diagram, and classify the identified graphics into different primitive library types to obtain primitive type 502. The obtained primitive type 502 is similarly calculated with the predetermined primitive library 503, and when the calculated similarity value is greater than the similarity threshold, the two are matched. For example, the calculated similarity is 99.9999%, which is greater than the similarity threshold of 99.99%, and the two are matched. The second initial attribute information 504 of the primitive type 502 is further obtained through the mapping relationship between each predetermined primitive type in the predetermined primitive library and the device attribute of each predetermined primitive.

[0072] According to an embodiment of the present invention, the initial image features are identified to obtain the initial attribute information of each graphic element corresponding to each control device in the initial monitoring image, which also includes: using a neural network model after completing graphic element recognition training, using a target detection algorithm to calculate the similarity of the initial image features to directly obtain the initial attribute information, which will not be repeated here.

[0073] According to the embodiment of the present invention, by performing image recognition on the initial image features, each primitive type is obtained. By matching the primitive type with the predetermined primitive library, the initial attribute information of each primitive is further obtained, and the accurate recognition of the monitoring image features is realized, and the primitive attribute information can be quickly obtained, and then the image difference information before and after the signal is changed can be quickly obtained, which is used for intelligent positioning of the primitives whose states change before and after the signal is changed, and the automatic verification and validation of the monitoring image in the power system is completed.

[0074] According to an embodiment of the present invention, the above method also includes: performing graphic element recognition on the initial monitoring image to obtain connection relationship information between each graphic element; performing text recognition on the descriptive text located at each graphic element in the initial monitoring image to obtain text identification information of each graphic element; and determining the target mapping relationship from the monitoring screen signal sequence file based on the text identification information of each graphic element and the connection relationship information between each graphic element.

[0075] According to an embodiment of the present invention, text recognition can be performed on the descriptive text located at each graphic element in the initial surveillance image. OCR technology can be used to recognize the text in the surveillance image and convert it into text data readable by the system. A custom symbol library can be used for semantic recognition to identify the attributes, positions and connection relationships of all graphic elements in the surveillance image.

[0076] Figure 6 A schematic diagram of interval sub-images in an initial monitoring image according to an embodiment of the present invention is shown.

[0077] like Figure 6 As shown, the first interval sub-image 600 includes a first image element 601, a second image element 602, a third image element 603, and a fourth image element 604. Image element recognition is performed on the first interval sub-image 600 in the initial monitoring image to obtain connection relationship information between the image elements, that is, "the first image element 601 is connected to the third image element 603, and the second image element 602 is connected to the fourth image element 604". Text recognition is performed on the description text located at the first image element 601, the second image element 602, the third image element 603, and the fourth image element 604 in the first interval sub-image 600 in the initial monitoring image, and the text identification information of the first image element 601 is obtained as "IS1", the text identification information of the second image element 602 is obtained as "IS2", the text identification information of the third image element 603 is obtained as "BR1", and the text identification information of the fourth image element 604 is obtained as "F1". According to the text identification information of each graphic element and the connection relationship information between each graphic element, the target mapping relationship is obtained: the first graphic element 601 in the first interval sub-graphic 600 is the "IS1 isolation switch", the second graphic element 602 is the "IS2 isolation switch", the third graphic element 603 is the "BR1 circuit breaker", and the fourth graphic element 604 is the "F1 fuse".

[0078] According to an embodiment of the present invention, by performing primitive recognition on the initial monitoring image, the connection relationship information between the primitives is obtained. By performing text recognition on the description text located at each primitive in the initial monitoring image, the text identification information of each primitive is obtained. Therefore, according to the text identification information of each primitive and the connection relationship information between each primitive, the primitive attribute information in the interval sub-image can be accurately determined from the monitoring screen signal sequence file, and the target mapping relationship between the primitive in the monitoring image and the control device signal description information can be established, and then the information of the primitive whose state changes before and after the signal is changed can be determined, which is used for the subsequent automatic verification and validation of the monitoring image in the power system.

[0079] According to an embodiment of the present invention, a target mapping relationship is determined from a monitoring screen signal sequence file based on text identification information of each graphic element and connection relationship information between each graphic element, including: determining candidate signal description information corresponding to the text identification information from the monitoring screen signal sequence file based on the text identification information of each graphic element; determining each target signal description information corresponding to each graphic element from the candidate signal description information based on the connection relationship information between each graphic element; and constructing a target mapping relationship based on each graphic element and each target signal description information.

[0080] In the actual interval sub-graph, there may be repeated or unclear text identification information, resulting in different graphic elements corresponding to the same text identification information. If the target mapping relationship cannot be determined based only on the text identification information of the graphic element, it is necessary to determine the target signal description information corresponding to each graphic element from multiple candidate signal description information based on the connection relationship information between the graphic elements, and construct the target mapping relationship.

[0081] Figure 7 A schematic diagram of another interval sub-image in an initial monitoring image according to an embodiment of the present invention is shown.

[0082] like Figure 7 As shown, the second interval sub-image 700 includes a fifth image element 701, a sixth image element 702, a seventh image element 703, and an eighth image element 704. Text recognition is performed on the description texts located at the fifth image element 701, the sixth image element 702, the seventh image element 703, and the eighth image element 704 in the second interval sub-image 700 in the initial monitoring image, and the text identification information of the fifth image element 701 is "IS3", the text identification information of the sixth image element 702 is "IS3", the text identification information of the seventh image element 703 is "BR2", and the text identification information of the eighth image element 704 is "F2".

[0083] According to the text identification information of each graphic element, the candidate signal description information corresponding to the text identification information is determined from the monitoring screen signal sequence file as "the fifth graphic element 701 is an IS3 isolation switch" and "the sixth graphic element 702 is an IS3 isolation switch".

[0084] The connection relationship information is "the fifth graphic element 701 is connected to the seventh graphic element 703, and the sixth graphic element 702 is connected to the eighth graphic element 704".

[0085] The target signal description information is "IS3 isolation switch is connected to BR2 circuit breaker". The target mapping relationship is: the fifth graphic element 701 is "IS3 isolation switch".

[0086] According to an embodiment of the present invention, when the text identification information located at the graphic element is vague, and there are multiple candidate signal description information obtained according to the text identification information of each graphic element and an accurate target mapping relationship cannot be established, at this time, through the connection relationship information between the graphic elements, the target signal description information corresponding to each graphic element can be accurately determined from the multiple candidate signal description information, and then the target mapping relationship can be accurately constructed, thereby improving the accuracy of the positioning judgment of the graphic element whose state changes before and after the signal is shifted, thereby improving the accuracy of automatic verification of the monitoring image.

[0087] According to an embodiment of the present invention, an initial monitoring image is obtained based on data simulation communication between each control device in a target substation and a monitoring system, including: obtaining a logical configuration relationship and communication parameters between each control device in the target substation by parsing configuration information of the target substation; and sending a simulation signal to the monitoring system based on the logical configuration relationship and communication parameters between each control device to obtain an initial monitoring image.

[0088] Parse the configuration information of the target substation to obtain the logical configuration relationship and communication parameters between the control devices in the target substation. This is achieved by simulating the MMS (Multimedia Message Service) server functions of the spacer layer devices such as the full station protection and measurement and control devices according to the SCD (substation configuration description) file. By parsing the SCD file, the MMS communication parameters and logical configuration of the IED are obtained, including IP, IEDName, AP access node, LD logical device, LN logical node, DO data object, DA data description, etc. Send a simulation signal to the monitoring system based on the logical configuration relationship and communication parameters between the control devices to realize the data simulation communication between the control devices in the target substation and the monitoring system, and obtain the initial monitoring image.

[0089] According to an embodiment of the present invention, by parsing the configuration information of the target substation, the logical configuration relationship and communication parameters between the control devices in the target substation are obtained, and based on the logical configuration relationship and communication parameters between the control devices, an analog signal is sent to the monitoring system to establish data simulation communication between the control devices in the target substation and the monitoring system, and realize real-time acquisition of monitoring images, which is a prerequisite for subsequent recognition of monitoring images and verification of the substation monitoring system.

[0090] According to an embodiment of the present invention, a first verification result of the monitoring system is generated by comparing the signal position change trigger record information and the first signal state change information of each control device, including: comparing the signal position change trigger record information and the first signal state change information of each control device according to the signal type to obtain a comparison result; in response to the comparison result being that the signal position change trigger record information is the same as the first signal state change information of each control device, generating a verification result for characterizing the signal accuracy of the monitoring system; and in response to the comparison result being that the signal position change trigger record information is different from the first signal state change information of each control device, generating a verification result for characterizing the signal error of the monitoring system.

[0091] According to an embodiment of the present invention, a signal change instruction is executed on the control device according to the telesignal signal, for example, the instruction "221 switch, changed from closed position to open position", to obtain signal change trigger record information and the first signal state change information of the switch, the signal change trigger record information is "at time t, telesignal signal, 221 switch position, changed from closed position to open position", and the first signal state change information is "at time t, telesignal signal, 221 switch position, changed from closed position to open position". The above signal change trigger record information and the first signal state change information of the switch are compared, and the comparison result is that the signal change trigger record information is the same as the first signal state change information of each control device, then the verification result is "the signal of the monitoring system is accurate", and an automatic verification report is generated.

[0092] According to an embodiment of the present invention, the signal position change trigger record information and the signal state change information of each control device are compared. When the comparison result is that the signal position change trigger record information is the same as the first signal state change information of each control device, a calibration result is generated to characterize the signal accuracy of the monitoring system. When the comparison result is that the signal position change trigger record information is different from the first signal state change information of each control device, a calibration result is generated to characterize the signal error of the monitoring system. By comparing the signal position change trigger record information and the signal state change information of each control device, the calibration process of the substation monitoring system is completed without manual calibration, which reduces the probability of manual verification of information and improves the efficiency of relevant personnel in debugging the system.

[0093] According to an embodiment of the present invention, the verification method of the substation monitoring system further includes: in response to executing a control operation on a target device based on a remote control instruction, obtaining a first monitoring image and a second monitoring image from the monitoring system; wherein the first monitoring image is obtained before the control operation is executed on the target device; and the second monitoring image is obtained after the control operation is executed on the target device; and respectively identifying the first monitoring image and the second monitoring image to obtain second signal state change information of each control device. By comparing the remote control instruction and the second signal state change information of each control device, a second verification result of the monitoring system is generated.

[0094] According to an embodiment of the present invention, a remote control command "at time t, remote control signal, switch 221 changes from closed position to open position" is triggered on the graphic element of the monitoring image, and a remote signal is automatically returned after receiving the remote control command, and the first monitoring image before the control operation and the second monitoring image after the control operation are identified, and the second signal state change information of each control device is obtained as "at time t, remote control signal, switch 221 changes from closed position to open position". By comparing the remote control command with the second signal state change information of each control device, the comparison result is that the remote control command and the second signal state change information of each control device are the same, and the remote control object and remote control result of the monitoring image are correct.

[0095] Specifically, the monitoring screen and the alarm window are displayed and identified in parallel (for example, the upper half of the interface is the monitoring screen, and the lower half is the alarm window. The alarm information is generally displayed in the alarm window from top to bottom and in reverse chronological order, and automatically scrolls downward and refreshes after the information is generated). By identifying the graphics in the monitoring image and the text in the alarm window, the remote control object, remote control process, and the state of the graphics before and after the remote control operation and the signal changes in the alarm window are extracted to determine the correctness of the remote control association of the graphics in the monitoring system.

[0096] According to an embodiment of the present invention, for the verification of the remote control signal, the first monitoring image and the second monitoring image are obtained from the monitoring system, and the first monitoring image and the second monitoring image are respectively identified to obtain the second signal state change information of each control device. By comparing the remote control command and the second signal state change information of each control device, the second verification result of the monitoring system is generated, and it is automatically determined whether the screen remote control object and the remote control result are correct, so as to realize the automatic verification of the remote control object and the remote control result after executing the remote control signal command in the substation monitoring system, thereby avoiding the problems of manual information verification errors, low debugging efficiency, and large personnel input.

[0097] Figure 8 A schematic diagram of a device for implementing a calibration method for a substation monitoring system according to an embodiment of the present invention is shown.

[0098] like Figure 8As shown, the verification method device 800 for implementing the substation monitoring system performs simulation communication with the monitoring system 810 to establish a connection between the two. The verification method device 800 for implementing the substation monitoring system includes a monitoring system graphic element library module 801, a monitoring screen signal sequence file parsing module 802, an image acquisition module 803, a graphic element information mapping module 804, a bay layer device simulation module 805, an image dynamic recognition module 806, a remote signal, a telemetry signal verification module 807, and a remote control signal verification module 808.

[0099] The monitoring system graphic element library module 801 is used to standardize modeling of common equipment graphic elements, establish a predetermined graphic element library, and define all graphic element status attributes in each monitoring system screen, including graphic element color, shape, value, coordinates, size, rotation and other attributes.

[0100] The monitoring screen signal sequence file parsing module 802 is used to parse the monitoring screen signal sequence file in the monitoring system 810, obtain all data objects and data description information in the monitoring screen, and generate a signal sequence to be tested. It can also be used to generate a monitoring screen signal database with the above information, and visualize all signal sequences in the monitoring screen.

[0101] The image acquisition module 803 is used to analyze the shape, size, color, value, rotation, and connection relationship of all the graphics elements in the monitoring system 810 screen, and to identify the text information in the screen. Based on the information obtained by the above analysis and identification, combined with the monitoring system graphics library module 801, matching is performed to obtain the attribute information of each graphics element.

[0102] In addition, an HDMI signal line is added to the place where the monitoring host screen signal is output to copy the monitoring host screen signal and obtain the monitoring host screen signal in real time without affecting the normal use and operation of the original monitoring display.

[0103] The graphic element information mapping module 804 accurately matches the identified graphic element icon with the monitoring system graphic element library module 801 according to the graphic element attribute information identified by the image acquisition module 803, fuzzily matches the identified text with the signal description in the monitoring screen signal sequence file in the monitoring screen signal sequence file parsing module 802, and establishes a mapping relationship between the graphic element and the signal description information according to the relative position and connection relationship of the graphic element.

[0104] The bay layer device simulation module 805 is used to parse the configuration information of the target substation to obtain the logical configuration relationship and communication parameters between the control devices in the target substation, and to send a simulation signal to the monitoring system based on the logical configuration relationship and communication parameters between the control devices to obtain a monitoring image.

[0105] The image dynamic recognition module 806 collects the monitoring screen information before and after the signal is displaced through the image acquisition module 803, compares the difference between the parts of the image before and after the signal is displaced, dynamically locates and identifies the displaced image element, and identifies the signal state before and after the image element state change according to the image element information mapping module 804, and obtains the state and time information before and after the signal is displaced.

[0106] The image dynamic recognition module 806 collects the monitoring screen change information in real time and intelligently locates the graphics elements with changed status, for example, identifying the following changes: the switch changes from red to green, indicating that the status changes from "closed" to "open"; the knife switch changes from "open" to "connected", indicating that the status changes from "open" to "closed"; the pressure plate changes from "connected" to "separated", indicating that the status changes from "input" to "output"; the color of the light-emitting sign changes from "red" to "green", indicating that the signal status changes from "1" to "0"; the telemetry value changes, and the number represents the refresh of the telemetry value.

[0107] The remote signal and telemetry signal verification module 807 controls the interval layer equipment simulation module 805 to trigger the signal displacement, and automatically debugs the remote signal and telemetry signals of the monitoring screen by comparing the monitoring screen image displacement information collected by the image dynamic recognition module 806 and comparing the trigger information with the displacement information.

[0108] The remote control signal verification module 808 triggers the remote control signal in the monitoring system screen element. The interval layer device simulation module responds to the remote control command and automatically returns the remote signal. The image dynamic recognition module 806 automatically determines whether the remote control association of the monitoring system screen element is correct by identifying the remote control object of the screen element, the remote control process, and the screen state changes before and after the remote control execution.

[0109] Based on the above-mentioned verification method of the substation monitoring system, the present invention also provides a verification device for the substation monitoring system. Fig. 9 The device is described in detail.

[0110] Fig. 9 A structural block diagram of a calibration device for a substation monitoring system according to an embodiment of the present invention is shown.

[0111] like Fig. 9 As shown, the verification device 900 of the substation monitoring system of this embodiment includes a first acquisition module 910 , a second acquisition module 920 , a first identification module 930 and a first verification module 940 .

[0112] The first acquisition module 910 is used to acquire an initial monitoring image based on data simulation communication between each control device in the target substation and the monitoring system. In one embodiment, the first acquisition module 910 can be used to perform the operation S210 described above, which will not be described in detail here.

[0113] The second acquisition module 920 is used to trigger the signal change of each control device according to the signal sequence to be tested, and obtain the target monitoring image and the signal change trigger record information; wherein the signal sequence to be tested is obtained by parsing the monitoring screen signal sequence file of the monitoring system. In one embodiment, the second acquisition module 920 can be used to perform the operation S220 described above, which will not be repeated here.

[0114] The first recognition module 930 is used to recognize the initial monitoring image and the target monitoring image respectively to obtain the first signal state change information of each control device. In one embodiment, the first recognition module 930 can be used to perform the operation S230 described above, which will not be repeated here.

[0115] The first verification module 940 is used to generate a first verification result of the monitoring system by comparing the signal change trigger record information and the first signal state change information of each control device. In one embodiment, the first verification module 940 can be used to perform the operation S240 described above, which will not be repeated here.

[0116] According to an embodiment of the present invention, the first recognition module includes an image difference information generation submodule and a first signal state change information generation submodule.

[0117] The image difference information generation submodule is used to identify the initial monitoring image and the target monitoring image respectively to obtain the image difference information. The first signal state change information generation submodule is used to generate the first signal state change information of each control device according to the image difference information based on the target mapping relationship between each predetermined graphic element and the signal description information of each control device.

[0118] According to an embodiment of the present invention, the image difference information generating submodule includes a first extracting unit, a first identifying unit, a second identifying unit and an image difference information generating unit.

[0119] The first extraction unit is used to extract the initial image features of the initial monitoring image and the target image features of the target monitoring image respectively. The first recognition unit is used to recognize the initial image features and obtain the initial attribute information of each image element corresponding to each control device in the initial monitoring image. The second recognition unit is used to recognize the target image features and obtain the target attribute information of each image element corresponding to each control device in the target monitoring image. The image difference information generation unit is used to obtain the image difference information according to the initial attribute information of each image element and the target attribute information of each image element.

[0120] According to an embodiment of the present invention, the first recognition unit may include a first recognition subunit and a first matching subunit.

[0121] The first recognition subunit is used to perform image recognition on image features to obtain the types of each graphic element. The first matching subunit is used to match each graphic element type with a predetermined graphic element library to obtain initial attribute information of each graphic element.

[0122] According to an embodiment of the present invention, the above-mentioned device further includes: a primitive recognition module, a text recognition module and a target mapping relationship determination module.

[0123] The primitive recognition module is used to perform primitive recognition on the initial monitoring image to obtain the connection relationship information between the primitives. The text recognition module is used to perform text recognition on the description text located at each primitive in the initial monitoring image to obtain the text identification information of each primitive. The target mapping relationship determination module is used to determine the target mapping relationship from the monitoring screen signal sequence file based on the text identification information of each primitive and the connection relationship information between each primitive.

[0124] According to an embodiment of the present invention, the target mapping relationship determination module includes a candidate signal description information determination submodule, a target signal description information determination submodule and a target mapping relationship construction submodule.

[0125] The candidate signal description information determination submodule is used to determine the candidate signal description information corresponding to the text identification information from the monitoring screen signal sequence file according to the text identification information of each graphic element. The target signal description information determination submodule is used to determine each target signal description information corresponding to each graphic element from the candidate signal description information according to the connection relationship information between each graphic element. The target mapping relationship construction submodule is used to construct a target mapping relationship based on each graphic element and each target signal description information.

[0126] According to an embodiment of the present invention, the first acquisition module includes a parsing submodule and a sending submodule.

[0127] The parsing submodule is used to parse the configuration information of the target substation to obtain the logical configuration relationship and communication parameters between the control devices in the target substation. The sending submodule is used to send an analog signal to the monitoring system based on the logical configuration relationship and communication parameters between the control devices to obtain an initial monitoring image.

[0128] According to an embodiment of the present invention, the first verification module includes a comparison submodule, a first verification result generation submodule and a second verification generation submodule.

[0129] The comparison submodule is used to compare the signal displacement trigger record information and the first signal state change information of each control device according to the signal type to obtain a comparison result. The first verification result generation submodule is used to generate a verification result for characterizing the accuracy of the signal of the monitoring system in response to the comparison result that the signal displacement trigger record information is the same as the first signal state change information of each control device. The second verification result generation submodule is used to generate a verification result for characterizing the signal error of the monitoring system in response to the comparison result that the signal displacement trigger record information is different from the first signal state change information of each control device.

[0130] According to an embodiment of the present invention, the above-mentioned device further includes: a third acquisition module, a second identification module and a second verification module.

[0131] The third acquisition module is used to acquire the first monitoring image and the second monitoring image from the monitoring system in response to executing the control operation on the target device based on the remote control command. The second identification module is used to identify the first monitoring image and the second monitoring image respectively to obtain the second signal state change information of each control device. The second verification module is used to generate a second verification result of the monitoring system by comparing the remote control command with the second signal state change information of each control device.

[0132] According to an embodiment of the present invention, any multiple modules of the first acquisition module 910, the second acquisition module 920, the first identification module 930 and the first verification module 940 can be combined into one module for implementation, or any one of the modules can be split into multiple modules. Alternatively, at least part of the functions of one or more of these modules can be combined with at least part of the functions of other modules and implemented in one module. According to an embodiment of the present invention, at least one of the first acquisition module 910, the second acquisition module 920, the first identification module 930 and the first verification module 940 can be at least partially implemented as a hardware circuit, such as a field programmable gate array (FPGA), a programmable logic array (PLA), a system on a chip, a system on a substrate, a system on a package, an application specific integrated circuit (ASIC), or can be implemented by hardware or firmware such as any other reasonable way of integrating or packaging the circuit, or implemented in any one of the three implementation methods of software, hardware and firmware or in a suitable combination of any of them. Alternatively, at least one of the first acquisition module 910 , the second acquisition module 920 , the first identification module 930 , and the first verification module 940 may be at least partially implemented as a computer program module, and when the computer program module is executed, a corresponding function may be performed.

[0133] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present invention. In this regard, each box in the flow chart or block diagram can represent a module, a program segment, or a part of a code, and the above-mentioned module, program segment, or a part of a code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram or flow chart, and the combination of the boxes in the block diagram or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0134] It will be appreciated by those skilled in the art that the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways, even if such combinations and / or combinations are not explicitly described in the present invention. In particular, the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways without departing from the spirit and teachings of the present invention. All of these combinations and / or combinations fall within the scope of the present invention.

[0135] The embodiments of the present invention are described above. However, these embodiments are only for the purpose of illustration, and are not intended to limit the scope of the present invention. Although each embodiment is described above, it does not mean that the measures in each embodiment cannot be used in combination. The scope of the present invention is defined by the attached claims and their equivalents. Without departing from the scope of the present invention, those skilled in the art may make various substitutions and modifications, which should all fall within the scope of the present invention.

Claims

1. A method for verifying a substation monitoring system, characterized in that: The method comprises: Based on the data simulation communication between each control device and the monitoring system in the target substation, an initial monitoring image is obtained; Trigger the signal change of each control device according to the signal sequence to be tested, and obtain the target monitoring image and signal change trigger record information; wherein the signal sequence to be tested is obtained by parsing the monitoring screen signal sequence file of the monitoring system; Respectively identifying the initial monitoring image and the target monitoring image to obtain first signal state change information of each of the control devices; and Generate a first verification result of the monitoring system by comparing the signal change trigger record information and the first signal state change information of each control device; The step of respectively identifying the initial monitoring image and the target monitoring image to obtain the first signal state change information of each control device includes: Respectively identifying the initial monitoring image and the target monitoring image to obtain image difference information; the image difference information includes the attribute information of the image element that has changed before and after the signal is changed; and Based on a target mapping relationship between predetermined graphic elements and signal description information of each control device, and according to the image difference information, first signal state change information of each control device is generated; The step of respectively identifying the initial monitoring image and the target monitoring image to obtain image difference information includes: Extracting initial image features of the initial monitoring image and target image features of the target monitoring image respectively; Identifying the initial image features to obtain initial attribute information of each image element corresponding to each control device in the initial monitoring image; Identifying the target image features to obtain target attribute information of each image element corresponding to each control device in the target monitoring image; and Obtaining the image difference information according to the initial attribute information of each graphic element and the target attribute information of each graphic element; The identifying of the initial image features to obtain initial attribute information of each image element corresponding to each control device in the initial monitoring image includes: Performing image recognition on the initial image features to obtain various primitive types; and Based on matching each primitive type with a predetermined primitive library, initial attribute information of each primitive is obtained; wherein the predetermined primitive library includes a mapping relationship between each predetermined primitive type and a device attribute of each predetermined primitive.

2. The method according to claim 1, characterized in that The method further comprises: Performing image element recognition on the initial monitoring image to obtain connection relationship information between the image elements; Performing text recognition on the description text located at each image element in the initial monitoring image to obtain text identification information of each image element; and The target mapping relationship is determined from the monitoring screen signal sequence file according to the text identification information of each graphic element and the connection relationship information between the graphic elements.

3. The method according to claim 2, characterized in that Determining the target mapping relationship from the monitoring screen signal sequence file according to the text identification information of each graphic element and the connection relationship information between the graphic elements includes: According to the text identification information of each graphic element, determining candidate signal description information corresponding to the text identification information from the monitoring screen signal sequence file; Determining each target signal description information corresponding to each graphic element from the candidate signal description information according to the connection relationship information between the graphic elements; and The target mapping relationship is constructed based on the description information of each graphic element and each target signal.

4. The method according to claim 1, characterized in that The method of acquiring an initial monitoring image based on data simulation communication between each control device in the target substation and the monitoring system includes: By parsing the configuration information of the target substation, the logical configuration relationship and communication parameters between the control devices in the target substation are obtained; and Based on the logical configuration relationship and communication parameters between the control devices, an analog signal is sent to the monitoring system to obtain the initial monitoring image.

5. The method according to claim 1, characterized in that The generating a first verification result of the monitoring system by comparing the signal change trigger record information and the first signal state change information of each control device includes: According to the signal type, comparing the signal change trigger record information and the first signal state change information of each control device to obtain a comparison result; In response to the comparison result being that the signal change trigger record information is identical to the first signal state change information of each control device, generating a signal accuracy verification result for characterizing the monitoring system; and In response to the comparison result being that the signal change trigger record information is different from the first signal state change information of each control device, a verification result for characterizing a signal error of the monitoring system is generated.

6. The method according to claim 1, characterized in that The method further comprises: In response to performing a control operation on a target device based on a remote control instruction, acquiring a first monitoring image and a second monitoring image from the monitoring system; wherein the first monitoring image is acquired before the control operation is performed on the target device; and the second monitoring image is acquired after the control operation is performed on the target device; and Respectively identifying the first monitoring image and the second monitoring image to obtain second signal state change information of each of the control devices; and By comparing the remote control command with the second signal state change information of each control device, a second verification result of the monitoring system is generated.

7. A calibration device for a substation monitoring system, characterized in that: The device comprises: A first acquisition module is used to acquire an initial monitoring image based on data simulation communication between each control device in the target substation and the monitoring system; A second acquisition module is used to trigger the signal change of each control device according to the signal sequence to be tested, and obtain the target monitoring image and signal change trigger record information; wherein the signal sequence to be tested is obtained by parsing the monitoring screen signal sequence file of the monitoring system; A first recognition module is used to recognize the initial monitoring image and the target monitoring image respectively to obtain first signal state change information of each control device; and A first verification module, used for generating a first verification result of the monitoring system by comparing the signal change trigger record information with the first signal state change information of each control device; Wherein, the first identification module is used to: Respectively identifying the initial monitoring image and the target monitoring image to obtain image difference information; the image difference information includes the attribute information of the image element that has changed before and after the signal is changed; and Based on a target mapping relationship between predetermined graphic elements and signal description information of each control device, and according to the image difference information, first signal state change information of each control device is generated; The step of respectively identifying the initial monitoring image and the target monitoring image to obtain image difference information includes: Extracting initial image features of the initial monitoring image and target image features of the target monitoring image respectively; Identifying the initial image features to obtain initial attribute information of each image element corresponding to each control device in the initial monitoring image; Identifying the target image features to obtain target attribute information of each image element corresponding to each control device in the target monitoring image; and Obtaining the image difference information according to the initial attribute information of each graphic element and the target attribute information of each graphic element; The identifying of the initial image features to obtain initial attribute information of each image element corresponding to each control device in the initial monitoring image includes: Performing image recognition on the initial image features to obtain various primitive types; and Based on matching each primitive type with a predetermined primitive library, initial attribute information of each primitive is obtained; wherein the predetermined primitive library includes a mapping relationship between each predetermined primitive type and a device attribute of each predetermined primitive.

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