he track here refers to the car walking along the black line on the white floor. The usual method is infrared detection. Infrared detection method, that is, using infrared light in different colors on the surface of the object has the characteristics of different reflection properties, in the course of the car is constantly transmitting infrared light to the ground, when the red light meets white paper floor, the diffuse reflection occurs, the reflected light is received on the receiving tube on the car; if the black line is encountered, the infrared ray is infrared. Light is absorbed, and the receiving tube on the car can not receive infrared light. The microcontroller determines the location of the black line and the walking route of the car on the basis of whether or not the reflected infrared light is received.

Filename	Size	Update
C51FPS.LIB	50348	2002-03-28

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