Study On Leak Detection Method Of Liquid Pipeline Based On GIS And Acoustic Wave Technology

The pipeline buried in the ground, with the growth of the natural aging or man-made damage can lead to underground pipeline damage, and once the damage caused by the economic losses and social security has tremendous influence, Non mining type underground pipeline leak detection technology is always difficult to overcome the project, this paper acoustic ranging technology, based on GIS technology,research and development a liquid pipeline leak detection system based on GIS and acoustic technology, realized by reading the sonic value occurred time difference automatic analysis of pipeline leak location function. The system has the function of geographic information system all, digital management can realize the liquid line and automatic leak positioning purpose.The system adopts GPRS(2G) wireless communication technology, solves the problem of long distance pipeline detection equipment for data communication. Event driven web application framework using asynchronous, gateway, network service program development of high performance, high reliability wireless synchronization access, multi sensors time calibration, data reporting, dynamic leakage monitoring function. Adopts the negative pressure wave analysis method, analysis of liquid pipeline leakage location away from the sensor length distance, the data into GIS system,completed the final analysis technology specific leak geographic location through linear reference dynamic GIS segment and to provide specific information of latitude and longitude for maintenance department for positioning using.The system adopts the mode of hierarchical network architecture design, the data transfer by the sensor, the client and the service gateway, monitoring center order,because the sensor reporting data quantity is very much not directly save system according to the days of building tables, will one day data using JSON compression to save, and designs the data redundancy structure, upgrade efficiency analysis. The ultimate realization of automatic detection and location of pipeline leak related functions.