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中文摘要：
为了实现对复杂边坡角的准确测定,控制边坡工程的施工精度,设计了基于激光测距及视频识别技术的非接触测定边坡角装置,并根据三维几何结构、实测参数及三角函数推导了复杂边坡角计算公式.基于测角设备的实测指标,探讨了所有的误差因素,并对比不同误差因素对于最终测量结果的影响水平,确定了α2为整个测量设备的敏感性因素.根据激光测距仪的固有误差ΔL推导出了伪倾角的计算公式,并借助实例研究,明确了ΔL和L1对于测量误差的影响规律.结果表明：ΔL越大,伪倾角的误差越大;L1越小,伪倾角的测量误差越大.边坡角β的测量误差与ΔL呈线性正相关,当ΔL达到1 m时,边坡角测量误差可达2.92％;边坡角β的测量误差与厶呈线性负相关,当L1=20 m和厶=10 m时,边坡角最大误差分别为4.31％和8.26％;因此,提高激光测距仪的精度和保持测量设备与边坡角的有效距离都可以提高边坡角测量精度.
英文摘要：
In order to measure the complex slope angle accurately and control the construction precision of slope engineering,a non-contact slope angle measuring device is designed based on the laser distance and video recognition technology.According to the three-dimensional geometric structure,measured parameters and trigonometric functions,the formula for calculating the complex slop angle is deduced.All of the error factors are discussed based on the indicators of the angle measuring device.According to the influence degree of the error factors to the final measuring results,α2 is regarded as the sensitive factor of the measuring device.According to the fixed error of the laser range finder（ΔL）,the calculation formula of pseudo angle is deduced.The influence rule of ΔL to L1 is analyzed by case research method.The research results illustrate that,the inclination angle error increases with ΔL growing while with L1 decreasin~ The measuring error of slope angle β follows in a positive linear correlation with ΔL.When the value of ΔL reaches to 1 m,slope angle measurement error can be as much as 2.92％.Nevertheless,the measuring error of slope angle β follows in a negative linear correlation with L1,when the value of L1 reaches 20 m or 10 m,the maximum slope angle error can be as much as 4.31％ or 8.26％ accordingly.Therefore,the measuring accuracy of slope angle can be improved by enhancing the accuracy of laser equipment and maintaining the effective distance between laser equipment and slope.
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