| The complete profile measurement of rail traffic infrastructure is significant to railway operational safety, which has huge meaning to national economy and people's life. However, the manual daily check-up and periodical comprehensive census can't satisfy the safety status inspecting of many busy lines. So, it's very important to design a quick and efficient method to ensure running safety of the rail traffic.The complete profile measurement of vehicular system which is the main detecting method in the measurement of rail traffic infrastructure is designed on the dynamic and noncontact technology. Take the design of the complete profile measurement and the information management system for example, our system acquires railway data by 2 laser scanners which could scan 180°, and compensates the data by the dynamic benchmark measurement system to improve precision, meanwhile through static calibration to get the transform from sensor coordinate to world coordinate. Then, the data are collected, processed, recorded, and the graphic of the complete profile is shown. At last, the information management system is established to finish data review, overrun point print and movement analysis to increase the degree of information.This thesis describes the whole structure and realization method of the complete profile measurement system. It mainly introduces the detection scheme of the complete profile measurement and the design of the information management system. Meanwhile, it emphases the processing of the sensor data on separate ways, the compensate arithmetic to data, the static calibration algorithm, the feature point identification method, and the application of information management system.During the experiment on the spot, the system is installed on the normal running train, which behaves easy installation, strong resistance to rain, snow disadvantage factor. What's more, it could adapt the rail traffic application environment. |
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