The auto guarding system against theft for pipeline transportation

This article discusses the principle and structure of the auto guarding system against theft used in oil or gas pipelines transportation. The system can collect, process and identify abnormal sound through sound processing technology, the frequency width of the system can be ascertained by analyzing the power spectrum of the simulated abnormal sound. The structure of wireless communication network used in this system is also introduced. The system is stable, the correct recognition ratio can reach 100%, and the error warning ratio is below 1%.