| 摘要 |
PURPOSE:To obtain a control system minimizing the utilized hardware by detecting the occupying rate of the reflected light from a reflection tape in the visual field of plural photosensors arranged in a vehicle so as to generate a command on the vehicle to control the movement of the vehicle. CONSTITUTION:A reflecting sensor means A is provided with a linear array of reflection sensors 20a-e and generates 5 analog output signals simultaneously proportional to the percentage of the visual field of the sensor occupied by a reflection tape 16. A comparator means B compares each output signal with a step reference voltage signal Vss generated from a step reference signal means C. The period of the reference signal is 10msec. and when the period of 10msec. is finished, a mathematical value to each 10-byte generated in the period is used as the table position by a loopup means F. The loopup means F obtains a vehicle indication stored in two loopup tables G, H based on each byte. Thus, the equipment to be installed on the floor is a few and the running path is changed easily.
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