【摘要】 针对传统测量手段无法为隧道维护装置提供导航信息的问题,提出1种基于近景摄影测量的隧道维护装置导航方法:对单相机摄影测量系统进行改进,将8位编码标志改进为10位编码标志,并以激光跟踪仪测量点代替基准尺;然后利用跟踪仪测点为公共点加密隧道控制网;最后应用后方交会原理提供隧道维护装置的导航位置信息。实验结果表明,提出的方法能够满足隧道内实测需要,可保证定位精度在5 mm以下,为隧道维护装置提供较准确的导航位置信息。更多还原

【Abstract】 Aiming at the problem that traditional measurement methods can not provide navigation information for tunnel maintenance devices, the paper proposed a navigation method for the devices based on close range photogrammetry: the single camera photogrammetry system was improved by ameliorating the 8-bit code mark to the 10 bit code mark, and using the laser tracker measuring point instead of the reference ruler; then the tunnel control network was encrypted for the common points by using the tracker point; finally, the principle of resection was applied to provide the navigation position information of tunnel maintenance devices. Experimental result showed that the proposed method could meet the needs of the actual measurement in the tunnel, with the positioning accuracy of less than 5 mm, which would provide relatively accurate navigation position information for the tunnel maintenance devices.更多还原