Leakage detection system of gas pipeline

The utility model relates to a leakage detection system of a gas transmission pipeline, which monitors and positions pipeline leakage in real time by using a sound wave detection technology and improves detection efficiency and accuracy. The system comprises a sonic sensor, a data acquisition processor, a Beidou/GPS dual-mode antenna, a leakage monitoring and positioning server and a man-machine interaction terminal. The sound wave sensor receives sound wave signals in a pipeline, and the data acquisition processor processes the signals and sends the signals to the monitoring and positioning server. The Beidou/GPS dual-mode antenna provides time and position information. And the monitoring and positioning server analyzes the signal, judges the leakage occurrence and position, and displays the leakage occurrence and position on the man-machine interaction terminal. And the man-machine interaction terminal is used for operating personnel interaction and parameter setting. The system improves the efficiency and