| 摘要 |
<p>In a production control system eg in a factory, a position recognition system determines the positions of the interacting parts 3, 4, 13, 14, 15, 16 of the production process eg products, parts, carrying and fabricating equipment, and their relative movement is controlled in dependence upon a comparison of the detected positions with a stored production plan. The position recognition means may comprise at least 3 transmitters or receivers 5 located around the production area which exchange data with receivers or transmitters on the interacting parts and the control unit 9, and may operate on a differential time of arrival principle. A fixed transmitter or receiver 12 can be included to correct the position of each of the floor transmitters or receivers. The system can be used for operational analysis eg fault diagnosis. <IMAGE></p> |
