The Security Pre-warning System Of Pipeline Based On The Earthquake Wave Detection

With the fast development of national economy, the demand of energy especially for oil resources in all industry is growing rapidly. With the development of oil industry, pipeline transportation industry has been playing more and more important role in oil and gas transportation because of its own unique features. Due to all kinds of reasons, Pipeline leakage accident happened frequently, which had lead to a great loss of property and serious environmental pollution. The inspection and orientation of pipeline leakage is a vital part of pipeline transportation management system, playing an important role in reducing loss caused by pipeline leakage. Presently, method for inspecting pipeline leakage is mainly to alarm and orientation once the leakage happens.This paper is focus on designing a pre-warning system based on the collection of seismic waves due to the moving mobile along pipelines. By analyzing the seismic signals and its feature, it aims to the inspection of the moving mobile along pipelines, thus realizes the early inspection, alarm and location and prevents the man-made destruction so that reduces the property loss and environmental pollution.The first step is to make the hardware design of the system. This system can and must have the ability to assemble extreme low power signal and have strong anti-jamming ability to run in complex environment. Specifically, the system introduces wireless transmission. Because the whole system should work in wild places for a long time, it should be designed to meet the low-consumption of power.The second step is to make the software design of the system. Making the programs of gathering data, transmitting data, the security ensure in transmitting data and serial communication.Finally, making an analysis of the collected signal can realize the function of the system. Making boost of the attenuation signal with noise reduction can meet the need of signal analysis. Making the analysis of the number of the pass zero and the analysis on the frequency field can realize the classified identification and localize track the target with time difference arithmetic and triangle location method.