Showing papers on "Obstacle avoidance published in 1975"
01 Sep 1975
TL;DR: An algorithm has been developed that efficiently solves a large class of robot navigation and obstacle avoidance problems using range information as its sole input from the environment.
Abstract: An algorithm has been developed that efficiently solves a large class of robot navigation and obstacle avoidance problems using range information as its sole input from the environment. The system resides in a minicomputer and requires very small memory (1500 words) and computing time (1.35 s) allocations while solving simulated problems of broadly ranging spatial complexity and operational intricacy. It is thus a prime candidate for use in mobile robots or manipulators where real-time operation is desired.
30 citations
01 Aug 1975
TL;DR: Adaptive Video Guidance System (AVGS) has been developed, bread-boarded, and flown on a six-degree-of-freedom simulator as discussed by the authors, which can provide automatic real-time guidance and site selection capability.
Abstract: Studies relating to stellar-body exploration programs have pointed out the need for an adaptive guidance scheme capable of providing automatic real-time guidance and site selection capability. For the case of a planetary lander, without such guidance, targeting is limited to what are believed to be generally benign areas in order to ensure a reasonable landing-success probability. Typically, the Mars Viking Lander will be jeopardized by obstacles exceeding 22 centimers in diameter. The benefits of on-board navigation and real-time selection of a landing site and obstacle avoidance have been demonstrated by the Apollo lunar landings, in which man performed the surface sensing and steering functions. Therefore, an Adaptive Video Guidance System (AVGS) has been developed, bread-boarded, and flown on a six-degree-of-freedom simulator.
4 citations