CN101848241B - Ies500 automatic real-time data and information system - Google Patents

Abstract

The invention discloses an ies500 automatic real-time data and information system transmission interface, which is characterized in that a double-link structure of a real-time data link and a file link is set, and while the real-time data is transmitted on the internal network, the internal network maintains the work content of the database It can also automatically transmit to the external network synchronously; locate the foreign server in the soft bus on the scheduling workstation, and set the modification trigger in the internal network server; set the historical database synchronization module on the DataServer server, and complete the synchronization of the internal and external historical databases of the isolation system at regular intervals ; Adopt the three-tier application architecture of DataBaseServer, WebServer and Browser; use the Web Service interface to write the results of on-site meter reading into the marketing MIS. The invention focuses on guaranteeing the safe and stable operation capability of the scheduling automation core system, can ensure the automatic synchronization of internal and external data of the isolation system to the greatest extent, and reduces duplication of labor, thereby ensuring the authenticity, convenience and high reliability of the data restoration of the scheduling automation system on the external network.

Description

An ies500 automatic real-time data and information system

technical field

The invention relates to a signal transmission interface, more specifically a real-time system transmission interface which can safely isolate internal and external data and is applied in an electric power system.

Background technique

In the power system, the ies500 dispatching automation SCADA system has been in operation and development for many years, and has a large amount of valuable raw data information of the power supply network. With the continuous expansion of the scale of the power grid, its information volume is still constantly enriched, and it has become an excellent real-time data source for other non-real-time systems, especially in the power market environment of modern power companies, it is more necessary for SCADA to provide a large amount of data for various functional departments And company leadership analysis and decision-making use. However, as a real-time network, its main function is to provide timely and accurate power grid operation information to serve economic and security dispatching. It is unrealistic to develop too many statistics, analysis, management and other functions on it.

On the other hand, as a production network, its operation involves scheduling security and power grid operation security. As the computer network application environment becomes more and more complex, operating system vulnerabilities are constantly being discovered and may be illegally and maliciously used, the internal production network The information transmission with the external application network must achieve the strength of security isolation at the physical level, which increases the difficulty of developing the interface for the transmission of internal network automation data to external network information. At present, the commonly used solution is to use a special power safety isolation device to realize a safe interface with the information system. However, since the application systems of the power system are different, how to restore the data inside and outside the isolated system as quickly, timely and completely as possible It comes out that data mining and deep processing applications on the information network segment are exactly the technical problems that this project needs to solve.

Contents of the invention

The present invention provides an ies500 automated real-time data and information system in order to avoid the shortcomings of the above-mentioned prior art, in order to improve the integrity of interface transmission data while ensuring the safe and stable operation of the dispatch automation core system. timeliness and ease of maintenance.

The present invention solves technical problem and adopts following technical scheme:

The characteristics of the ies500 automatic real-time data and information system of the present invention are:

Set up a dual-link structure of real-time data link and file link, while real-time data transmission on the internal network, the work content of maintaining the database on the internal network can also be automatically and synchronously transmitted to the external network;

Locate foreign servers in the soft bus on the dispatching workstation, set modification triggers in the intranet server, and perform trigger transmission during manual data setting operations on the intranet to maintain the consistency of memory data in the internal and external databases of the isolated system;

Set up the historical database synchronization module on the DataServer server, and complete the synchronization of the historical database inside and outside the isolated system regularly;

The three-tier application architecture of DataBaseServer, WebServer and Browser is adopted. Outside the information transmission interface, the database is separated from the application. The characteristics of the server published on the network, the characteristics of the standard browser Browser, and the separation of data and application logic make intranet data Automatic external transmission; use the Web Service interface to write the results of on-site meter reading into the marketing MIS.

Compared with the prior art, the beneficial effects of the present invention are reflected in:

1. The intranet of the present invention adopts a common-source multi-mirror service, and the real-time communication of real-time data on the external network and the timely synchronization of system parameters are guaranteed to the greatest extent when the intranet system is basically uninterrupted.

The ies500 real-time SCADA system internal network CCS front-end processor is a dual-computer configuration, and only the main computer in the system sends data to the outside. Through the intranet communication management program and system data source configuration, a common data source is formed to ensure the consistency of the data source to the greatest extent. At the same time, the corresponding information forwarding server MIS-01-C and the interface program for information transmission are set up on the intranet to form a mirror service with the SCADA server (ADM-01-A, ADM-01-B) of the real-time system, and pass forward The isolation device continuously provides qualified real-time data to the APPServer of the information center application server on the extranet.

2. The present invention sets up a dedicated communication service program in a targeted manner, and safely passes through the positive physical isolation device dedicated to 1-bit return of electric power, meeting the requirements of the "Regulations on the Safety Protection of the Secondary Electric Power System".

According to the requirements of the "Regulations on the Safety Protection of the Secondary Power System" and the "Overall Plan for the Safety Protection of the Secondary Power System", a special horizontal physical isolation device for power must be deployed between the production control area and the management information area, and the isolation device must meet the requirements of 1 The protection requirements for bit return prohibit direct connection to TCP/IP channels or direct connection to servers across security areas. Therefore, the real-time data and information system transmission interface cannot be carried out by means of conventional network transmission, and must be established on the basis of meeting the safety protection requirements of the power secondary system, and carry out targeted special development. The present invention adopts the establishment of proxy forwarding server on the internal network to respond to the publishing application server on the external network. Among the machines before and after physical isolation, the one-way communication between internal and external DataComm and DataComm is actually the key to the special development of the project. In addition, the shared memory service RdataSvr and the data communication DataComm have different data flow directions before and after isolation, that is, the shared memory service RdataSvr must be started first on the proxy forwarding server, and then the data communication DataComm should be started, while the publishing application server does not On the contrary, only in this way can the data be completely restored on the external network.

3. The internal and external network of the present invention adopts a three-layer application architecture of DataBaseServer/WebServer/Browser, and realizes reasonable excavation and utilization after real-time data restoration.

Real-time data and information system transmission interface on the basis of ensuring security, a large amount of application data of ies500 automation system is relatively completely restored on the external network. At the same time, a database and application separation mechanism is adopted on the extranet to ensure data security and load distribution. The external network database server has become a reliable source for the comprehensive application and data deep processing of various functional departments. The WEB application server also applies the Browser standard browser technology, which greatly improves the convenience of information release system maintenance.

Description of drawings

Fig. 1 is a schematic structural diagram of the ies500 automatic real-time data and information system in the present invention.

Fig. 2 is a schematic diagram of the functional modules of the ies500 automatic real-time data and information system in the present invention.

Detailed ways

See Figure 1 and Figure 2. In this embodiment, real-time data and file dual-link settings are adopted. While real-time data is being transmitted on the internal network, the work content of the maintenance database on the internal network can be automatically synchronized to the external network to realize the isolation of internal and external database memory. Full consistency of the data in . The specific implementation is to set up a special file transmission link on the basis of the normal transmission of real-time data at both ends of the isolation system, such as: database description table file transmission; web file transmission of reports and graphics; "temporary data" generated for zero or the whole point file transfer, etc. There are two links working in the DataComm module, namely the real-time data link and the file link. Therefore, the work content of the internal network maintenance database can also be automatically synchronized to the external network, which greatly satisfies the integrity of the internal and external data restoration of the isolated system. and timeliness.

Use the soft bus positioning method to locate foreign servers to maximize the integrity and timeliness of data restoration inside and outside the isolated system. The front-end processor of the intranet ies500 system must locate the DataServer as a foreign server in the soft bus, which can solve the problem of synchronizing real-time data collection in the internal and external database memory of the isolated system, but the system still has a lot of information that has not been collected from the field, such as some manual The vehicle position, grounding switch, etc. are manually set by the dispatcher on the intranet. This embodiment adopts the method of locating foreign servers in the soft bus on the dispatching workstation, completes the trigger transmission during the manual setting operation of the intranet, automatically synchronizes the inserted data, and realizes the comprehensive unification of the data in the memory of the internal and external databases of the isolation system.

Timing synchronization is adopted, and modification triggers are set in the internal network server to realize the consistency between the internal network SCADA and the historical database of the external network information center. Specifically, a "historical database synchronization" module is added to the DataServer server to regularly complete the synchronization of the internal and external historical databases of the isolated system. Because the historical data stored in the SCADA system (such as yesterday, the day before yesterday, etc.) sometimes needs to be modified, and the DataServer historical database in the information center cannot know the modification made by the SCADA system, resulting in inconsistent data in the two databases. In order to solve this problem, this embodiment sets a modification trigger on the intranet server to actively synchronize the modified content.

It adopts DataBaseServer/WebServer/Browser three-tier application architecture, which sets data security and reliability, and makes application maintenance more convenient. The specific implementation is to adopt the mechanism of separating the database and the application on the outside of the information transmission interface, forming the characteristics of the server published on the network, the characteristics of the standard browser browser, and the separation of data and application logic, so that the key data of the intranet can be automatically transmitted outside, free from maintenance. Safe and reliable data makes application development such as deep processing more convenient. For information including electricity charges, use the Web Service interface to write the results of on-site meter reading into the marketing MIS.

System settings:

1. Server and client

As the server, the data forwarding workstation initiates (finds and maintains) a connection to the external network information server (client) after the forwarding processing program is started, and the forwarding workstation does not accept any external connections to ensure the internal network SCADA System security.

2. Data transmission and realization function

The forwarding workstation is responsible for initiating connections, detecting physical links and server status, initiating connection requests, and maintaining logical links. At the same time, it is responsible for sending the following data: dynamically updated real-time data, report data for a specified period, all graphics files that need to be updated, system description library, and historical data for a specified period.

The external network information server is responsible for starting the connection waiting, receiving data from the forwarding workstation, storing local description data and historical data, and forming real-time memory data for the office network client to browse and view.

3. Communication protocol

During command and data transmission, a self-defined communication protocol is used on the link between the data forwarding node and the MIS publishing server. This protocol allows the transmission of various types of commands and subsequent data, ensuring that the changed data in the SCADA network is transmitted to the publishing server in time, and the transmission of description library information does not affect the interface display effect of the final office network client.

4. Functional modules

The functional modules that each machine needs to run are shown in the table below.

Among them, MisComm.exe completes the transmission and reception of real-time data and various files, and communicates with the DBADM module; MisMon.exe completes the compression and decompression of various files that need to be transmitted and the update of the MIS machine description library. User manual operation is acceptable.

5. Related folders

The above two application programs are placed under c:\ies500\bin of the corresponding machine, and the corresponding two initialization files miscomm.ini and mismon.ini are under c:\ies500\ini. In addition, there should be a rar.exe file under c:\ies500\bin, which is called when the program packs or unpacks files.

The four subfolders under the C:\ies500\tmp\miscomm folder are used to temporarily store various compressed files, and these files will be automatically deleted after sending or decompressing.

For forwarding station (MMI_COM_1):

C:\ies500\bin should have DB2Text.exe, which is used when MisMon.exe exports database files;

C:\ies500\sql stores the exported database text format file;

For Information Application Server (MIS_01_A):

C:\ies500\param\sqltext is used to temporarily store the received database text format files. These files are automatically deleted after they are automatically imported into the database.

Claims (1)

1. An ies500 automatic real-time data and information system, characterized by: Set up a dual-link structure of real-time data link and file link, while real-time data transmission on the internal network, the work content of maintaining the database on the internal network can also be automatically and synchronously transmitted to the external network; Locate foreign servers in the soft bus on the dispatching workstation, set modification triggers in the intranet server, and perform trigger transmission during manual data setting operations on the intranet to maintain the consistency of memory data in the internal and external databases of the isolated system; Set up the historical database synchronization module on the DataServer server, and complete the synchronization of the historical database inside and outside the isolated system regularly; The three-tier application architecture of DataBaseServer, WebServer and Browser is adopted. Outside the information transmission interface, the database is separated from the application. The characteristics of the server published on the network, the characteristics of the standard browser Browser, and the separation of data and application logic make intranet data Automatic external transmission; use the Web Service interface to write the results of on-site meter reading into the marketing MIS; System settings: (1), server and client As the server, the data forwarding workstation initiates a connection to the external network information server, that is, the client, after the forwarding processing program is started, and the forwarding workstation does not accept any external connections; (2), data transmission and realization function The forwarding workstation is responsible for initiating connections, detecting the status of physical links and servers, initiating connection requests, and maintaining logical links; at the same time, it is responsible for sending the following data: dynamically updated real-time data, report data for a specified period, all graphics files that need to be updated, and system Describe the historical data of the library and the specified time period; The external network information server is responsible for starting the connection waiting, receiving the data from the forwarding workstation, storing local description data and historical data, and forming real-time memory data for the office network client to browse and view; (3), communication protocol During command and data transmission, a custom communication protocol is used on the link between the data forwarding node and the MIS publishing server; this protocol allows the transmission of various types of commands and subsequent data, ensuring that the changed data in the SCADA network is transmitted to Publish the server, and the transmission of the description library information will not affect the interface display effect of the final office network client.

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