FERNSTEUERSYSTEM

摘要

A remote control system has transmitters (1) sending messages including commands to a security receiver (2) arranged to verify those messages on the basis of identity codes in the messages and to execute the commands, such as issuing an alarm and turning a light on or off. The codes are stored in memory (7, 15) in the transmitters (1) and receiver (2) and are generated as random numbers in the transmitters and transmitted to the memory (15) of the receiver (2) in an installation mode. <IMAGE>