以蛇怪蜥蜴为仿生对象,设计了一种足式水上行走机器人.鉴于水面环境的复杂性,提出利用计算机仿真的方法构建足式水上行走机器人及其外界环境整个系统的数学模型.分析了现有的ZMP(zero moment point)算法难以适用足式水上行走机器人控制的原因,提出机器人的CPG(central pattern generator)模糊控制方法.设计了足式水上行走机器人的CPG控制器和模糊控制器,进行参数分析,完成了机器人整个控制系统的搭建,并进行了仿真验证.最后进行了机器人户外水上行走实验,测定了水上行走过程中的实时偏角.实验结果表明该控制方法有效.
In this paper, a biped water running robot is developed by mimicking the water-running pattern of basilisk lizards. The dynamic mechanism of the robot was studied based on Watt-I planar linkages, and the movement trajectory of the double bar Assur Group was deduced to simulate the water-running foot trajectories of the basilisk lizard. A Central Pattern Generator （CPG）-based fuzzy control method was proposed to control the robot for realizing balance control and gait adjustment. The effectiveness of the proposed control method was verified on the prototype of a water running robot （weight： 320 g）. When the biped robot is running on water, the average force generated by the propulsion mechanism is 1.3 N, and the robot body tilt angle is 5~. The experiment results show that the propulsion mechanism is effective in realizing the basilisk lizards-like water running patterns, and the CPG-based fuzzy control method is effective in keeping the balance of the robot.
