Dynamic monitoring method of oil pipeline leakage based on ultrasonic and optical fiber hybrid sensing technology

There is a big positioning error in oil pipeline leakage monitoring, so a dynamic monitoring method of oil pipeline leakage based on ultrasonic and optical fiber hybrid sensing technology is proposed. For a given arbitrary signal, the extreme points of all modal components are extracted; Solve the envelope of the maximum and minimum signal sets, decompose the modal components of the original virtual signal according to the average value of the original signal envelope, construct the dynamic monitoring process of oil pipeline leakage, match and classify, and finally achieve the purpose of locating the leakage point according to the oil pipeline pressure data, and realize the dynamic monitoring of oil pipeline leakage. The experimental results show that this method can quickly and accurately monitor the occurrence of leakage events, achieve the shortest alarm time and the smallest leakage positioning error, and have high positioning accuracy.