High throughput embedded cope hopping system with bypass mode

Details High throughput embedded cope hopping system with bypass mode High throughput embedded cope hopping system with bypass mode

G - Physics

08

B

G08B 25/10 (2006.01) H04B 1/69 (2006.01)

Patent

CA 2249008

A system for monitoring and controlling an area comprising a controller (35) for controlling system operational functions; at least one remote control transmitter (25) for transmitting at least one system command to said controller (35) in a code word having a fixed word and a hopping word therein; the fixed word having an identification code for selective control of the controller (35), the identification code programmed therein, and a channel code for issuing high and low security commands to the controller (35); a hopping algorithm for modifying the hopping code of the transmitter (25) n-times in response to n-times activation of said transmitter (25) and for modifying the hopping word m-times within the controller (35) upon receipt of the code word m-times from said transmitter (25); and, a bypass mode for bypassing the code hopping algorithm and for controlling system functions in response to the controller (35) receiving the low security command.

L'invention concerne un système (29) de surveillance et de contrôle de zone qui garantit que la sécurité des ordres est maintenue par l'utilisation de mots de code "fixe" et "de sauts" dans les transmissions d'ordres et que certaines fonctions qui peuvent être exécutée à partir d'un émetteur (25) à distance sont affectées avec un critère "basse sécurité" et sont exécutées avec un "mode évitement" pour contourner l'algorithme de sauts qui est nécessaire pour l'exécution des fonctions "haute sécurité".

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