Leak detection system and method for urban gas pipeline network based on self-organizing non-central network

Abstract

The invention discloses an urban gas pipeline network leak detection system based on a self-organized non-central network, and relates to the technical field of leak detection. A gas leakage detection component is connected to an intelligent control node; a mobile terminal is connected to the intelligent control node; Above the gas pipeline and close to the gas pipeline, both ends are respectively extended to the station, the pressure regulating station (box), and the gate well to be disconnected; the intelligent control node is set at the station, the pressure regulating station or the pressure regulating box, and the gate well ; The mobile terminal realizes human-computer interaction; the valve electric actuator is used to control the opening and closing of the electromagnetic valve; the urban gas pipeline network leak detection method based on the self-organized non-central network divides a whole into multiple areas to form a non-central network, through Based on wavelet analysis, approximate entropy and mutual correlation analysis, the detection is carried out. The advantage is that when an accident occurs, the location information of the fault can be quickly prepared and calculated according to the correlation of the gas leakage transmission detection components, and emergency measures are triggered.

Description

technical field [0001] The invention relates to the technical field of leak detection of urban gas pipeline networks, and more particularly relates to a system and method for leak detection of urban gas pipeline networks based on self-organized non-central networks. Background technique [0002] The urban gas pipeline network is a typical and centralized underground pipeline system, which has the characteristics of concealment, systematization and dynamics. The number of on-site monitoring and control points is large, and it is difficult to network the system and upgrade it. Accidents such as gas leakage during the operation of the city gas network are generally difficult to avoid. Once an accident occurs, emergency measures must be taken in time to avoid the spread of the accident and organize rescue in time. Due to various reasons, the leak detection method and system of urban gas pipeline network have not been well developed. Contents of the invention [0003] The tech...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is that the position information of the fault cannot be calculated quickly and accurately when the gas leakage occurs

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