The Erudition: A grid solver (Autonomous) robot

An Grid Solver Robot (Autonomous system)

Dear friends, yesterday I have given an brief introduction of an autonomous robot. Today I will introduce an grid solver robot with the preview of line follower robotic system. A line follower simply indicates that it just follows a line ( black or white in color ).

I will introduce the sensor part in detail. For the sensor system of an line follower robot, you will need proper information about a proximity sensor. A proximity sensor can only give two different outputs in terms of binary logic 0 and 1. Basically a proximity sensor needs a light transmitter - receiver pair. A transmitter may be a IR LED while receiver should be a photo-diode in reverse bias configuration or you can make use of photo-transistor also. Proximity sensor works with the property of reflection. Whenever a object with white color comes in its path, there will be maximum reflection by the surface of that material. This will be opposite in case of black colored object. Now I hope that you have got full idea about the proximity sensor.

Now another question raises that how to configure our sensors position on our autonomous system. The answer lies in width of line on which you want to play your AR (Autonomous Robot) system. For example take a case, that width of our line (say having black color) is 30 mm (3 cm). Then either you can make position of your sensors outside the extremity of that line or inside the line.

Consider these small circles as our sensors. I hope now you will crystal clear with the sensor position. Next point is how to generate logic for preparation of the program of micro-controller. Whenever any one circle in the diagram goes outside the line ( In second case it goes inside the line ). Make the controller output in a such a way that AR will take turn so that the sensor will regain its original position