A system controlling apparatus wherein an array of sensors are used for detecting information and for providing signals indicative of information concerning passing articles such as presence of an article at a sensor, number of articles passing, the direction of passing and the velocity of passing. Signal...http://www.google.fr/patents/US4283031?utm_source=gb-gplus-shareBrevet US4283031 - System controlling apparatus which compares signals from sensors monitoring passing objects with pre-determined parameter information to control the system
System controlling apparatus which compares signals from sensors monitoring ...
