System Design of an Indoor Mobile Robot Navigated by Infrared

Abstract

The mobile robot sends radio to a destination of power supply device when it detects that the voltage of power is insufficient. The device sends infrared to guide the robot in moving towards it as soon as it receives the radio. The robot successively collects the signals of the infrared,and the two motors that drive the bicycle of the robot are real-time controlled,which is realized by the software that simulates pulse width modulation。In doing this,the function of the robot to track infrared is achieved. Without image processing and precise environment model,the robot avoids collision and plans routes with many kinds of sensing technologies including ultrasonic,infrared,photoelectric,and with an embedded experienced expert system when it detects no or weak signals of the infrared,and then,it quickly leaves the local place and trails the infrared in the shortest distance,and is accurately located in the power supply device lastly.