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SYSTEMS AND METHODS FOR AVOIDING COLLISIONS BETWEEN MANIPULATOR ARMS USING A NULL-SPACE
专利权人:
发明人:
Arjang M. Hourtash,Pushkar Hingwe,Bruce Michael Schena,Roman L. Devengenzo
申请号:
US15605879
公开号:
US20170258534A1
申请日:
2017.05.25
申请国别(地区):
US
年份:
2017
代理人:
摘要:
Devices, systems, and methods for avoiding collisions between manipulator arms using a null-space are provided. In one aspect, the system calculates an avoidance movement using a relationship between reference geometries of the multiple manipulators to maintain separation between reference geometries. In certain embodiments, the system determines a relative state between adjacent reference geometries, determines an avoidance vector between reference geometries, and calculates an avoidance movement of one or more manipulators within a null-space of the Jacobian based on the relative state and avoidance vector. The joints may be driven according to the calculated avoidance movement while maintaining a desired state of the end effector or a remote center location about which an instrument shaft pivots and may be concurrently driven according to an end effector displacing movement within a null-perpendicular-space of the Jacobian so as to effect a desired movement of the end effector or remote center.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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