The closed-loop digital control method mainly USES the photoelectric sensor detection method, and the structure diagram is shown in figure 1. First microcontroller based on the input data to calculate the distance to move objects to coordinate and control the object about direction, infrared emission receiver to detect hanging objects move how many 1 * 1 cm of small squares, and the A/D to SCM, single-chip microcomputer by A specific algorithm to calculate the coordinates of the object, to coordinate and control the rotation of the motor to control the object, in the process of the single chip microcomputer constantly, constantly adjusting the rotational speed and the direction of the motor make the suspension to do A certain line of moving object. The disadvantage is that the circuit is complex, requiring not only A/D circuit, photoelectric detection circuit, but also the circuit to be very precise. The design of any circuit is not good, and it can cause great deviation in motion.

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20060417220252725.doc

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