The safe obstacle avoidance is a basic problem on mobile robotics research. The premise of realizing safe obstacle avoidance is achieving the accurate information for obstacle avoidance which provides reliable indication on the surrounding environment for mobile robot obstacle avoidance processing. The sensors are used to measure and obtain the obstacle avoidance information for obstacle detection and ranging. Based on "Future Star" platform, a remote control application of ultrasound obstacle avoidance has been developed to implement obstacle avoidance capabilities on the study of ultrasound obstacle avoidance strategy and path planning.