This paper takes the demand of gas enterprises for urban gas pipeline network monitoring system as the background, and conducts systematic analysis and design on the construction of gas pipeline network SCADA system, including the operation mechanism of real-time database, the database structure of SCADA database, the construction of SCADA special authority system, the processing process of historical data, the synchronization and collaborative processing of distributed data, the redundant backup of data and system functions and other key modules. Keywords: SCADA, gas pipeline network With the increase of investment in the construction of gas pipeline network distribution and the increasing attention to its management in my country, the traditional way of monitoring and controlling gas pipeline network is far from meeting the current needs. With the rapid development of science and technology, how to comprehensively, effectively, real-time and accurately monitor the urban gas pipeline network has become the main problem of management departments [1,2]. With the continuous expansion of urban scale, the continuous development of urban construction, and the continuous increase of gas consumption, the urban gas pipeline network is also expanding. This leads to a very wide monitoring range, a very large number of monitoring points, scattered geographical locations, and a variety of communication forms. The particularity of the gas industry requires that the dispatching system can respond quickly and take action to control emergencies in an emergency, and it must be safe and reliable, and should not affect the normal gas use of users as much as possible. If a station-level control system is set up at each node (such as a pressure regulating station) for monitoring, only the fault occurring at this node can be known, and the impact of the fault occurring at this node on the entire gas pipeline system cannot be found. In addition, the data format of a single node is not uniform, which also leads to the inability to effectively aggregate data for deeper analysis of the data. This makes it necessary for us to establish a centralized monitoring system for unified management in order to conduct faster and more accurate data collection and data processing. Especially in large cities, the gas SCADA system, as an important part of the modern gas transmission and distribution system [3,4], should play a key role in safe and stable gas transmission and supply. The application of SCADA system in the gas industry is receiving more and more attention from the society.
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