Data checking method and system suitable for operation and maintenance system

Abstract

A data checking method and system suitable for an operation and maintenance system solve the problem that man-machine interface data of a plant-station side telecontrol system and a dispatching system are inconsistent, and the method comprises the following steps: constructing a system architecture suitable for data checking of the operation and maintenance system; the forwarding table acquisition module reads the gateway machine channel forwarding table, converts the gateway machine channel forwarding table into a self-defined format text and sends the self-defined format text to the intelligent operation and maintenance substation, so that the intelligent operation and maintenance master station checks the consistency of gateway machine forwarding table data and scheduling system data; the intelligent operation and maintenance substation establishes connection with a gateway machine channel, analyzes a text file of a corresponding channel after receiving channel data, and forwards the text file to the intelligent operation and maintenance master station, and the data forwarding format is a user-defined JSON format; the intelligent operation and maintenance master station receives four-remote data information sent by the human-computer interface of the dispatching system from the data bus, and the communication data format is also the self-defined JSON format; and the intelligent operation and management master station checks the consistency of states, time, description parameters and values of the data of the man-machine interface of the scheduling system and the data of the intelligent operation and maintenance substations, and outputs a check result report.

Description

Technical Field

[0001] The present invention relates to the field of intelligent operation and maintenance of transformer substations, and in particular to a system for a data verification method applicable to an operation and maintenance system. Background Art

[0002] With the rapid development of smart grids and the promotion of unattended mode, gateway machines bear more and more responsibilities. The dispatching master station relies on the gateway machine to collect the operation information in the station and control the equipment in the station. The gateway machine transmits data to the dispatching system according to the transfer table and maps it to the human-machine interface. Therefore, the transfer table dispatching system human interface must be completely consistent, otherwise data misalignment may occur. At present, the data in the gateway machine transfer table is generally around 3,000 data, and a few transfer tables even exceed 10,000. The verification mode mainly triggers signals manually in the plant station and verifies with the dispatching duty personnel by phone. It is not only inefficient, but also often has verification errors. There is no effective technical means to identify the verification results. It all depends on the experience and responsibility of the verification personnel. Especially in the technical transformation work, it is difficult to verify all the data one by one after modifying the transfer table. If the transfer table is misaligned, it may lead to serious consequences such as misalignment of remote control primary equipment, AVC power calculation alarm or even action. Summary of the invention

[0003] The present invention aims to solve the above-mentioned problems existing in the background technology and provide a data verification method and system suitable for operation and maintenance system, which can ensure the consistency of gateway transfer table and scheduling system human-machine interface data.

[0004] The present invention adopts the following technical solution:

[0005] A data verification method applicable to an operation and maintenance system, characterized by comprising:

[0006] S1: Build a system architecture suitable for data verification of the operation and maintenance system, which consists of an intelligent operation and maintenance main station, an intelligent operation and maintenance substation, and a forwarding table collection module, and the forwarding table collection module is deployed on the gateway machine;

[0007] S2: The transfer table acquisition module reads the gateway machine channel transfer table and converts it into a custom format text and sends it to the intelligent operation and maintenance substation. The text content includes the four remote data of the transfer table. Each piece of the four remote data is uniformly stored in the following format: type, point number, address, coefficient, offset, negation, reference and description information. It is used by the intelligent operation and maintenance master station to verify the consistency of the gateway machine transfer table data and the scheduling system data. The text name is uniformly ZF_X_time.txt, where ZF is the text prefix, X represents the unique serial number of the gateway machine's different channel transfer tables, and time is the current time string;

[0008] S3: The intelligent operation and maintenance substation establishes a connection with the gateway machine channel, parses the text file of the corresponding channel after receiving the channel data, locates the information in the corresponding text by the data point number and forwards it to the intelligent operation and maintenance main station. The data forwarding format is a custom JSON format;

[0009] S4: The intelligent operation and maintenance master station receives the point number, address, coefficient, offset, reference and description information sent by the scheduling system human-machine interface from the data bus. The communication data format is also a custom JSON format;

[0010] S5: The intelligent operation and management master station verifies the consistency of the dispatching system human-machine interface data and the intelligent operation and maintenance substation data status, time, description parameters and values, and outputs a verification result report.

[0011] Furthermore, in step S2, the forwarding table collection module checks whether the forwarding table has been changed when the gateway machine is powered on, and periodically checks whether the forwarding table file has been changed during operation. If changed, the intelligent operation and maintenance substation is notified to read the forwarding table file in a unified format.

[0012] Furthermore, in step S4, the intelligent operation and maintenance substation and the dispatching side human-machine interface both use the same JSON format to transmit data to the data bus, and the intelligent operation and maintenance main station verification module receives data through the total number of data and verifies the data consistency.

[0013] A data verification system applicable to an operation and maintenance system, comprising:

[0014] The system architecture module for data verification of the operation and maintenance system consists of an intelligent operation and maintenance main station, an intelligent operation and maintenance substation, and a forwarding table collection module. The forwarding table collection module is deployed on the gateway machine. The intelligent operation and maintenance substation receives and forwards data. The intelligent operation and maintenance main station is responsible for the final verification and report output of the data. It is deployed with a data bus for receiving and verifying the JSON format data customized by the dispatching system human-machine interface and the intelligent operation and maintenance substation; the dispatching system human interface and the intelligent operation and maintenance substation are connected to the data bus, and send data to the data bus through customized JSON format data;

[0015] Unified transfer table text file format module, the transfer table collection module is deployed on the gateway machine, starts running when the gateway machine is powered on and periodically checks whether the gateway machine channel transfer table file has been changed; the transfer table collection module automatically identifies and generates a unified format transfer table text file according to the gateway machine channel. The file content includes the four remote data of the transfer table, and each of the four remote data is stored in a unified format;

[0016] The intelligent operation and maintenance substation reads and parses the text data of the unified format of the forwarding table when it is powered on. It also has the function of receiving gateway channel data, can connect to the data bus of the intelligent operation and maintenance main station, and send data to the data bus in a custom JSON format;

[0017] The dispatch system human-machine interface module, when the dispatch system human-machine interface receives the data sent by the gateway, converts the gateway data and the human-machine interface point number, address, coefficient, offset, reference and description information, and sends the data to the data bus in a custom JSON format;

[0018] Verification and report output module: the intelligent operation and management master station verifies the consistency of the dispatching system human-machine interface data and the intelligent operation and maintenance substation data status, time, description parameters and values, and outputs a verification result report.

[0019] The beneficial effects of the present invention are as follows:

[0020] The data verification method for operation and maintenance system proposed in the present invention is based on the system architecture of operation and maintenance system data verification. The forwarding table of different channels is converted into a text in a unified format through the forwarding table acquisition module deployed on the gateway machine and sent to the intelligent operation and maintenance substation. The intelligent operation and maintenance main station obtains alarm data through the dispatching system human-machine interface, and obtains the corresponding forwarding table data through the intelligent operation and maintenance substation at the same time. By verifying the data of the two ways, the data consistency of the forwarding table and the human-machine interface is verified, and the verification of the gateway machine forwarding table and the dispatching system human interface data is realized, avoiding the hidden danger of data dislocation, and improving the reliability and safety of power grid operation. Compared with the real-time manual verification method, it has the characteristics of high verification efficiency and high accuracy, while reducing human errors, reducing the workload of verification personnel, accurately locating inconsistencies and traceability, and outputting verification reports at the same time, avoiding the invisibility and randomness of telephone verification. In addition, the present invention defines a unified format of forwarding table conversion format text, which is compatible with gateway machines of different manufacturers, has universality, is conducive to promotion and application, improves the correctness of the forwarding table, and improves the quality of forwarding data of the gateway machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a system architecture diagram of the present invention.

[0022] Figure 2 It is a control flow chart of the present invention. DETAILED DESCRIPTION

[0023] The technical solution of the present invention is described in detail below so that the technical features of the present invention can be more clearly understood. The present invention proposes a data verification system and implementation method suitable for operation and maintenance systems, such as Figure 1 As shown, including:

[0024] S1: Build a system architecture suitable for data verification of the operation and maintenance system, which consists of an intelligent operation and maintenance master station, an intelligent operation and maintenance substation, and a forwarding table collection module;

[0025] S2: The transfer table acquisition module is independently deployed in the gateway machine, adopts a cross-platform design, and is adapted to gateway machine products with different hardware and operating systems. When powered on, it reads the transfer table file and converts it into a unified format transfer table text for storage. Its format is shown in Table 1. The file content includes the transfer table type, point number, address, coefficient, offset, negation, reference, and description. The file name is "ZF_X_time.txt", where ZF is the text prefix, X represents the unique serial number of the transfer table of different channels of the gateway machine, and time is the current time string; and periodically detects changes in the transfer table file, and synchronizes the unified format transfer table text with the intelligent operation and maintenance substation in a timely manner to ensure that the gateway machine transfer table and the unified format transfer table text file are consistent, which is a prerequisite for improving the accuracy of verification.

[0026] Table 1

[0027]

[0028] S3: The intelligent operation and maintenance substation is deployed in the safety zone II on the plant side. A data bus is deployed in the device for data transmission within the station. It has the function of receiving and parsing the data from the gateway channel, mapping it to the unified format transfer table text according to the data point number, and sending the data to the intelligent operation and maintenance substation data bus. The data transmission adopts a custom JSON format, where the SubID value is the station information, Time is the time, Data is an array type that supports multiple data transmissions at the same time, Sn is the data point number, Status is the data status, ChgTime is the shift time, Negative is the data polarity, Ref is the data reference, and Des is the data description. The content in Data can be expanded according to actual needs. The specific JSON content format is shown in Table 2:

[0029] Table 2

[0030]

[0031] S4: Intelligent operation and maintenance master station Figure 1As shown, it is deployed in the safety II zone on the dispatching side, in which a data bus is deployed for the intelligent operation and maintenance substation on the plant side to send data to the dispatching side. The dispatching system human-machine interface receives the data from the gateway machine and converts it into JSON format data and then sends it to the data bus of the intelligent operation and maintenance main station. The intelligent operation and maintenance main station has a data verification module, which collects the JSON format data sent by the intelligent operation and maintenance substation and the dispatching system human-machine interface from the data bus, and verifies whether they are exactly the same according to the status, time, description parameter values ​​and data values ​​corresponding to the point number in the JSON format data, and outputs a data verification result report. A substation test environment is set up in the laboratory, and the data position change of the 627 interval simulation device of the XX line of the station is triggered. At the same time, the dispatching system human-machine interface is simulated through the MQTT tool to send JSON format data, and its verification function and verification result report are tested. The report format is shown in Table 3;

[0032] Table 3

[0033]

[0034] It should be noted that this method is applicable to gateway machine IEC101, IEC104, CDT, DISA, and MODBUS type channels, and the data acquisition module only needs to be compatible.

[0035] Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents, and any modifications or equivalent replacements that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A data verification method applicable to an operation and maintenance system, characterized in that: include: S1: Build a system architecture suitable for data verification of the operation and maintenance system, which consists of an intelligent operation and maintenance main station, an intelligent operation and maintenance substation, and a forwarding table collection module, and the forwarding table collection module is deployed on the gateway machine; S2: The forwarding table collection module reads the gateway channel forwarding table and converts it into a custom format text and sends it to the intelligent operation and maintenance substation. The text name is unified as ZF_X_time.txt, where ZF is the text prefix, X represents the unique serial number of different channel forwarding tables of the gateway, and time is the current time string; S3: The intelligent operation and maintenance substation establishes a connection with the gateway machine channel, parses the text file of the corresponding channel after receiving the channel data, locates the information in the corresponding text by the data point number and forwards it to the intelligent operation and maintenance main station. The data forwarding format is a custom JSON format; S4: The intelligent operation and maintenance master station receives the four remote data information sent by the dispatching system human-machine interface from the data bus, and the communication data format is also a custom JSON format; S5: The intelligent operation and management master station verifies the consistency of the dispatching system human-machine interface data and the intelligent operation and maintenance substation data status, time, description parameters and values, and outputs a verification result report.

2. A data verification method applicable to an operation and maintenance system according to claim 1, characterized in that In step S2, the forwarding table collection module checks whether the forwarding table has been changed when the gateway machine is powered on, and periodically checks whether the forwarding table file has been changed during operation. If it has been changed, the intelligent operation and maintenance substation is notified to read the forwarding table file in a unified format.

3. A data verification method applicable to an operation and maintenance system according to claim 1, characterized in that In step S2, the content of the custom format text includes the four remote data of the transfer table, and each piece of the four remote data has a unified storage format as follows: type, point number, address, coefficient, offset, negation, reference and description information.

4. A data verification method applicable to an operation and maintenance system according to claim 1, characterized in that In the step S4, the intelligent operation and maintenance substation and the dispatching side human-machine interface both use the same JSON format to transmit data to the data bus, and the intelligent operation and maintenance main station verification module receives data through the total number of data and verifies the data consistency.

5. A data verification system suitable for operation and maintenance system, characterized in that include: The system architecture module for data verification of the operation and maintenance system consists of an intelligent operation and maintenance main station, an intelligent operation and maintenance substation, and a forwarding table collection module. The forwarding table collection module is deployed on the gateway machine. The intelligent operation and maintenance substation receives and forwards data. The intelligent operation and maintenance main station is responsible for the final verification and report output of the data. It is deployed with a data bus to receive and verify the JSON format data customized by the scheduling system human-machine interface and the intelligent operation and maintenance substation; The dispatching system human interface and the intelligent operation and maintenance substation are connected to the data bus and send data to the data bus in a custom JSON format; Unified transfer table text file format module, the transfer table collection module is deployed on the gateway machine, starts running when the gateway machine is powered on and periodically checks whether the gateway machine channel transfer table file has been changed; the transfer table collection module automatically identifies and generates a unified format transfer table text file according to the gateway machine channel. The file content includes the four remote data of the transfer table, and each of the four remote data is stored in a unified format; The intelligent operation and maintenance substation reads and parses the text data of the unified format of the forwarding table when it is powered on. It also has the function of receiving gateway channel data, can connect to the data bus of the intelligent operation and maintenance main station, and send data to the data bus in a custom JSON format; The dispatching system human-machine interface module is connected to the data bus deployed on the intelligent operation and maintenance master station side. When the dispatching system human-machine interface receives the data sent by the gateway, it converts the gateway data and the human-machine interface point number, address, coefficient, offset, reference and description information, and sends the data to the data bus in a custom JSON format; Verification and report output module: the intelligent operation and maintenance master station verifies the consistency of the scheduling system human-machine interface data and the intelligent operation and maintenance substation data status, time, description parameters and values, and outputs a verification result report.

Images