Research On Location Method Of Gas Pipeline

With the development of China’s transportation industry, pipeline transportation as a new type of transport facilities has been widely used. In recent years, with continued grow of China’s transportation pipeline mileage, because the geographical environment is relatively complex, pipelines are prone to corrosion and perforation caused by leakage of pollution, blockage of the explosion and other vicious events. So regular inspection of buried pipeline is a necessary condition to ensure the safe development of pipeline transportation industry, it has important significance for its safety transportation. Regular detection of buried pipeline is based on the location of pipeline inspection robot. So it has important practical significance to study the localization method of the buried pipeline detection robot.At first, this paper enumerates the existing target positioning method, from the theoretical basis and practical application conditions in pipe positioning analysis the flaws of it. With the development of network technology combined with the existing theoretical knowledge, based on the network signal strength of the positioning method and GPS based positioning method for the actual test. By developing the signal strength detection software to obtain the network signal intensity in real time, it can realize the positioning of the target. The specific environmental conditions of buried pipelines are limited, and the above localization methods can not meet the requirements of the target.Along with the rapid development of the theory of inertial navigation in our country, based on the characteristics of the external environmental factors and the stability of the system, this paper presents the positioning mechanism of the buried pipeline robot based on the inertial navigation system.First introduce the basic theory of inertial navigation positioning, combined with inertial device measuring principle and complementary filter theory and its application in the inertial navigation system. After calculated by the attitude matrix, and the attitude data of the motion vector is obtained in real time, joint encoder measure the displacement information of the motion vector, calculate the position information of the carrier in real time, so as to realize the positioning mechanism of the target in the specific environment. According to the data analysis of the inertial navigation and positioning system, the positioning system can meet the requirements of the target location in the urban buried pipeline. At the same time, we can obtain the motion track and the whole attitude information, which provide the information support for the acquisition of the specific direction of the buried pipeline and the pipeline map. This positioning mechanism to a large extent solved the problem of buried pipeline inspection robot positioning difficulties. Providing an important guarantee for the realization of regular inspection of buried pipelines. Has great significance to the development of pipeline transportation industry.