Obstacle avoidance for mobile robot

Abstract

The purpose of obstacle detection is to extract the areas that cannot be avoided in mobile robot application. The techniques used in the detection of obstacles may vary according to the dentition of obstacle. Many approaches for extracting obstacles from range images have been proposed. This paper proposes the method to detect the obstacle in front of the mobile robot. With the information from sensor to detect the obstacle, the mobile robot can avoid the obstacle. The obstacle is detected by using three ultrasonic sensors. The necessary information for passing the obstacle should be the information from front, left and right ultrasonic of the robot. The simulation is implemented for object avoidance. Localization of objects is analyzed and the result is sent to the mobile robot to estimate the speed and heading to avoid the object. © 2011 Pushpa Publishing House.