Design on measurement and control system of crossing obstacle robot

In order to realize path planning and evade the obstacle in real-time for mobile robot, the distance between robot and obstacle is needed to be measured accurately. This paper designs a visual measurement and control system based on similarity ranging method. Based on the principle of the ranging method, this paper establishes the structure of measurement and control system deduces the calculation algorithm of ranging and verifies the effectiveness with experimental method. Simulation results indicate that the design of visual measurement and control system for mobile robot is content with high measurement precision and low-cost that is suitable for mobile robot system.