Line Follower Robot

Norfazlin, Mohd Taib (2005) Line Follower Robot. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Nowadays, the word 'robot' is often applied to any device that works automatically or by remote control, especially a machine that can be programmed to perform tasks normally done by people. The follower is one of the self-operating robots that follow a line that drawn on the floor, just like industrial robot in factories. A light sensor that consists of infrared emitter and detector distinguishes the black color from the white background and control the electrical motor to follow it. The basic operation of the line following are as follows is capture line position with optical sensor mounted at front end of the robot, steer robot to track the line with any mechanism, and control speed according to the lane condition. Running speed is limited during passing a curve due to friction of the tire and the floor. A line sensor in its simplest form is a sensor capable of detecting a contrast between adjacent surfaces such as difference in color. From this project, it must consider the basics effects of light and what happens when it shines on a black or white surface and to control the function and action of line follower robot it is interfere with micro controller 16F84A. The objective can be achieved when using the appropriate sensors and micro controller. Sensor part facing a lot of problem because of sensitivity of the lighting from the environment and sensor are difficult to detect the line when robot running fast on the track. So, in order to increase sensitivity we used more than one pairs of infrared emitter-detector and isolated each other of emitter and detector. At the final project, student can design the line follower robot that can function greatly by using their knowledge about PIC, infrared emitter and detector sensor and direct current Motor.

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