针对并联机构动平台上主轴动态定位问题,将电子罗盘及摄像头运用于并联机床动平台的位姿测量,提出一种基于多传感器数据融合的并联机床动态定位新方法。该方法融合动态惯性测量数据、机构各支链的编码器信息以及视觉信息,通过动态计算置信距离关系矩阵,实现并联机床动平台位姿(位置和方向)的精确定位。通过一个单方向运动动态测量的简化试验,对并联机床动平台的6自由度位姿测量进行仿真研究,证实该定位方法的有效性。
A positioning method for parallel machine based on data fusion of multi-sensor was proposed to solve its dynamic position problem,where electronic compass,camera and coder were mounted.The information from electronic compass,camera and coder is integrated in this method by dynamically computing confidence relation matrix to realize precise positioning.The method was tested in single direction motion for six degree-of-freedom parallel manipulator.The simulation results demonstrate that the method is valid.