OBJECT ranging can be achieved by humans using the sound reflected or scattered from obstacles. For a range of wave-lengths short compared with the size of its surfaces, and long compared with the ...

Furthermore, most sensors have limited information regarding distance, which limits their application to omni-directional obstacle detection. To solve this problem, this paper proposes a method using ...

A multi-sensor obstacle detection system for the use on railway tracks was specified, implemented and tested. The applied look-ahead sensors are: Video cameras (optical passive) and LIDAR (optical ...

Built an autonomous line follower robot using IR sensors, Arduino, and motor drivers. Added ultrasonic sensor for obstacle avoidance and Bluetooth module for remote control via a mobile app. Designed ...