In day to day life, the studies on robotics are increasing very rapidly. Especially, for obstacle detection and estimating distance in dynamic and static environments. Therefore, researchers contribute more of their interest towards robotics as well as artificial intelligence. Hence, this paper mainly focused on detecting object and how we are estimating distance of a mobile robot. There are many solutions already given by the numerous researchers such as laser sensor, sonar sensor or camera sensor for estimating distance process. The main goal of our proposed approach is to fuse information gained from the stereo vision, infrared and ultrasonic sensors to enhance the accuracy. Thus, we proposed a system with a hybrid approach system.