Design of Distributed Pipeline Leakage Monitoring System Based on ZigBee

With the rapid increase of the retain quantity and service time, pipeline leak detection and leak location problem have gotten extensive attention. In order to monitor the industrial pipeline, this paper develop a distribute pipeline leakage signal acquisition and processing system based on Zig Bee. In this system, STM32 microcontroller is the core and Wireless sensor is the network node. LabVIEW is used in PC as the monitor. The data transmit by Zig Bee wireless network between the upper and lower computer. Cross-correlation operation is used as the Leak location algorithm. Correlation analysis of the four sensor output signals is executed. This method eliminate the measurement error caused by the change of sound wave propagation speed, and further improved the positioning accuracy.