Electronic lock and alarm system - has key like data carrier to operate lock by sensors in lock comparing code to allowable codes in memory store

摘要

The data track on the key, when used, is read by a sensor system in the lock. The coding sequence is then compared by electronic means to the permissible data track codings that will open the lock. Pref. the locks code reading sensor has many reading units to provide electrical impulses during the insertion of the data carrier. At least one track of coded data is along an actuator which is moved within a guide slot of a receiver.