Real-time obstacle avoidance for robot arm using collision Jacobian

Hajime Kaneko*, Tatsuo Arai, Kenji Inoue, Yasushi Mae

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

3 Citations (Scopus)

Abstract

A real-time robot arm control method for obstacle avoidance is proposed. If links are close to and approaching obstacles, the end-effector velocity is modified so that collision is avoided and the error between the desired and modified end-effector velocity can be minimized. For this purpose, a new matrix called the 'collision Jacobian', which relates the approaching velocity of the links to the obstacles with the end-effector velocity, is proposed. Because the modified velocity can be calculated without an iterative algorithm, the proposed method is effective for real-time obstacle avoidance. This method is applied to collision avoidance between the links of a parallel arm.

Original languageEnglish
Pages617-622
Number of pages6
Publication statusPublished - 1999
Externally publishedYes
Event1999 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS'99): Human and Environment Friendly Robots whith High Intelligence and Emotional Quotients' - Kyongju, South Korea
Duration: 17 Oct 199921 Oct 1999

Conference

Conference1999 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS'99): Human and Environment Friendly Robots whith High Intelligence and Emotional Quotients'
CityKyongju, South Korea
Period17/10/9921/10/99

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