ass日本风韵熟妇pics男人扒开女人屁屁桶到爽|扒开胸露出奶头亲吻视频|邻居少妇的诱惑|人人妻在线播放|日日摸夜夜摸狠狠摸婷婷|制服 丝袜 人妻|激情熟妇中文字幕|看黄色欧美特一级|日本av人妻系列|高潮对白av,丰满岳妇乱熟妇之荡,日本丰满熟妇乱又伦,日韩欧美一区二区三区在线

In order to solve the problems of weeding robot including the flexible movement in field and removing weeds without injuring crop seedlings, the principle of intelligent weeding robot system and the mobile robot platform were studied. The mobile platform was a four-wheel driven and four-wheel steering robot. It could move within the speed of 0~1.5 m/s and each leg could rotate freely around Z-axis of itself. A three-finger manipulator was also designed. All the three fingers could rotate around their public-axis and one of them could also around its own Z-axis. When the robot worked, based on the location information of seedlings and weeds gotten by the machine vision, the rotation speed of movable finger could be controlled to avoid injuring the seedlings while the two fixed fingers would remove the weeds between two crop seedlings continuously. The simulation of the trajectories of three-finger manipulator showed that more than 90% weeds could be removed when a manipulator was installed on each side of crop rows.