作者
Dimitrios Kanoulas, Jinoh Lee, Darwin G. Caldwell, Nikos G. Tsagarakis
发表日期
2018/1
期刊
International Journal of Humanoid Robotics (IJHR)
卷号
15
页码范围
25
出版商
World Scientific
简介
Lifting objects, whose mass may produce high wrist torques that exceed the hardware strength limits, could lead to unstable grasps or serious robot damage. This work introduces a new Center-of-Mass (CoM)-based grasp pose adaptation method, for picking up objects using a combination of exteroceptive 3D perception and proprioceptive force/torque sensor feedback. The method works in two iterative stages to provide reliable and wrist torque efficient grasps. Initially, a geometric object CoM is estimated from the input range data. In the first stage, a set of hand-size handle grasps are localized on the object and the closest to its CoM is selected for grasping. In the second stage, the object is lifted using a single arm, while the force and torque readings from the sensor on the wrist are monitored. Based on these readings, a displacement to the new CoM estimation is calculated. The object is released and the process …
引用总数
201820192020202120222023202444118851
学术搜索中的文章
D Kanoulas, J Lee, DG Caldwell, NG Tsagarakis - International Journal of Humanoid Robotics, 2018