G - Physics – 05 – B
Patent
G - Physics
05
B
341/113, 346/53
G05B 24/02 (2006.01) B61L 29/22 (2006.01)
Patent
CA 1149489
ABSTRACT OF THE DISCLOSURE A system controlling apparatus wherein an array of sensors are used for detecting information and for providing signals indicative of information concern- ing passing articles such as presence of an article at a sensor, number of articles passing, the direction of pass- ing and the velocity of passing; signal processing apparatus is provided for comparing the signals with pre- determined parameter information as to the system and for providing control to the system in response to detecting equality and for providing overriding control to the system in response to detecting inequality; each of the sensors is self-checking during the period an article is not present; the information detected by the sensors is con- verted to a simple binary high or low signal and such binary signals from all sensors are compared in a "look- up" table comparator arranged to recognize a particular pattern of highs and lows at its input and to provide an output to the system if it is in accordance with a pre-determined pattern corresponding to the pre-deter- mined parameter information of the system.
318077
Finch (colin) Investments Pty. Ltd.
Sherman
LandOfFree
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