论文部分内容阅读
由于受经纬仪空间角度分辨率的限制,随着测量空间、尺寸的增大,很难保证经纬仪“视准轴”精确瞄准目标点,从而会带来较大测量误差。为了减小误差,基于激光经纬仪“视准轴”可视化条件,提出了一种激光经纬仪精确交会的实现方法。首先,引导经纬仪围绕目标点以最小步进角为间隔进行阵列扫描,通过图像采集和图像处理得到扫描点和目标点的坐标位置关系;然后,通过直线拟合、坐标计算,使经纬仪“视准轴”精确瞄准目标点;最后,实验验证了方法的可行性。实验结果表明,本文方法能够实现激光经纬仪的精确交会,可大幅减小系统的测量误差,同时可降低经纬仪的制造成本。
Due to the limitation of the theodolite spatial angle resolution, as the measuring space and size increase, it is difficult to ensure that the theodolite “collimating axis ” is aimed at the target point accurately, which leads to large measurement error. In order to reduce the error, based on the laser theodolite “collimation axis ” visualization conditions, a laser theodolite precise rendezvous realization method. First, the theodolite is guided to array scan around the target point with the minimum step angle as the interval, and the coordinate relationship between the scan point and the target point is obtained through image acquisition and image processing. Then, the theodolite Quasi-axis "aim precisely at the target point; Finally, the experimental verification of the feasibility of the method. Experimental results show that this method can achieve the exact intersection of laser theodolite, which can greatly reduce the measurement error of the system and reduce the manufacturing cost of theodolite.