An Automatic High-Speed Rail CPIII Detection System With Multi-Sensor Fusion

ABSTRACT

In order to measure the CPⅢ control network of high-speed rail quickly and accurately, we propose an automatic high-speed rail CPⅢ detection system with multi-sensor fusion. The system is based on binocular stereo vision. Dual array camera, Matrox Solios XCL frame grabbers and IPC are used to build the CPⅢ image acquisition environment. The photoelectric encoder is the trigger of camera. The software HALCON is used to recognize the CPⅢ image and get the pixel coordinates of CPⅢ markers’ center. Then, we use the intersection measurement principle to calculated the central position of CPⅢ markers in camera coordinate system. The function of CPⅢ image acquisition, automatic identification, calculation are integrated by Visual Studio 2008. Finally, we can realize the non-contact dynamic test of CP Ⅲ. The CPⅢ automatic detection system can also be combined with the IMU, GPS, gauge sensors and other detection tools into a small track inspection vehicle and realized the real-time measurement of orbital parameters.

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