Online Electromagnetic Rail Detection Data Management And Monitor System Design

With the rapid development of our country’s high-speed railway, train safety is very important. The defective rail will directly influence the safety of the train, how to high speed, quick, accurate detection the integrity of the rail is especially important.at home and abroad, ultrasonic testing rail train is The major rail detection methods, its detection speed slow, the efficiency is low, the need to add coupling agent, and can’t meet the demand of high speed rail flaw detection. With the advantages of non-contact detection and high speed, eddy current testing technology has been applied in the rail flaw detection in this paper.This paper introduces the online electromagnetic rail flaw detection systems design. The eddy current testing probe can detect the electromagnetic induction signal. Through the signal demodulation, FPGA can know whether the rail damaged. The on-board equipment sends defect data to the server, and the server will manage and store defect data. This system makes the rail flaw detection more efficient and simple.This paper introduced the data management and monitoring subsystem design and development in detail. Mainly includes the control center and server two parts. Based on S3C6410processor, embedded Linux operating system, this paper developed the on-board control center. The Qt man-machine interface can control flaw detection task, and the program in background is responsibility for data transmission, defect locating, message assembly and GPRS communication. In VS2008platform, the developed server software can monitor rail flaw detection task, query history rail flaw detection data, view the rail defects detail and configure the parameters.The online rail flaw detection data management and monitoring system can detect rail flaw by the on-board equipment and manage the data by remote server. It meets the high-speed testing requirements.