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人们已研制成了各种各样的机器人,并希望用这些机器人代替人工劳动,以便节省劳力或将工人从简单的、枯燥无味的、甚至是危险的劳动环境中解放出来。但是,这一愿望至今尚未完全实现,其原因之一是这些机器人缺乏像人体所具有的那些感觉器官。例如,对于焊接与喷漆机器人来说,焊条与焊枪必须与位置精度不高的工件表面的任一部位保持一定的距离,为此,要求机器人必须具备某些传感系统,使工作臂的前端与工件表面保持一定的距离。
People have developed a variety of robots, and hope that these robots instead of manual labor, in order to save labor or workers from the simple, boring, and even dangerous working environment liberated. However, one of the reasons why this aspiration has not yet been fully realized is that these robots lack those sensory organs that the human body has. For example, for welding and painting robots, the welding torch and welding torch must be at a distance from any part of the workpiece surface where the positioning accuracy is not high. For this reason, the robot must be equipped with some sensing system so that the front end of the working arm and The workpiece surface to maintain a certain distance.