关键词：机器人；导航；传感器
摘 要：This chapter discusses how a vision based robot navigation scheme can be developed, in a two-layered architecture, in collaboration with IR sensors. The algorithm employs a subgoal based scheme where the attempt is made to follow the shortest path to reach the final goal and also simultaneously achieve the desired obstacle avoidance. The algorithm operates in an iterative fashion with the objective of creating the next subgoal and navigating upto this point in a single iteration such that the final goal is reached in minimum number of iterations, as far as practicable.