Light modulation line-tracking system and it's application in a autorunning robot

Abstract

A light modulation line tracking system was designed to assist a robot walking along an indicated line on the ground. The system uses routing detection and synchronous sampling technology to enhance the performance of the modulated light detection and to adapt to different environments. The system has many features such as: high anti disturbance ability, long working distance, broad working range, etc. The system provides the control system with reliable position information. The paper gives a brief introduction to the principle of modulated light detection and then demonstrates the system's design and working principles.