Electric lock system
First Claim
1. An electric lock system comprising a central processor, a selectively lockable and unlockable lock located remotely from the central processor, a local processor located proximate the lock and remotely from the central processor, means coupled to the lock and the local processor for providing information to the local processor identifying the occurrence of a locking and an unlocking of the lock, the local processor including means for counting the time of day and memory means for storing the locking and unlocking information together with the time of day that the respective locking and unlocking occurred, the local processor causing information identifying each occurrence of the locking and unlocking of the lock to be recorded in the memory means together with the time of day the locking and unlocking occurred, and means for selectively coupling the central processor and the local processor under control of the central processor, the central processors automatically causing the coupling means to couple the central processor and the local processor and causing the local processor to transmit the stored information identifying the locking and unlocking occurrences and their associated times of day to the central processor.
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Accused Products
Abstract
An electronic lock system includes a lock which is selectively lockable and unlockable in response to an input signal; and buffer means for (1) receiving user commands and generating the input signal only in response to one or more preselected user commands, (2) identifying certain parameters incident to the locking or unlocking of said lock and (3) transmitting said parameters. A microprocessor includes a memory coupled to the buffer means for recording the parameters, and a central processor selectively interrogates the microprocessor and records the parameters. An interface is coupled between the microprocessor and the central processor and transmits the parameters from the microprocessor memory to the central processor in response to the interrogation.
74 Citations
8 Claims
- 1. An electric lock system comprising a central processor, a selectively lockable and unlockable lock located remotely from the central processor, a local processor located proximate the lock and remotely from the central processor, means coupled to the lock and the local processor for providing information to the local processor identifying the occurrence of a locking and an unlocking of the lock, the local processor including means for counting the time of day and memory means for storing the locking and unlocking information together with the time of day that the respective locking and unlocking occurred, the local processor causing information identifying each occurrence of the locking and unlocking of the lock to be recorded in the memory means together with the time of day the locking and unlocking occurred, and means for selectively coupling the central processor and the local processor under control of the central processor, the central processors automatically causing the coupling means to couple the central processor and the local processor and causing the local processor to transmit the stored information identifying the locking and unlocking occurrences and their associated times of day to the central processor.
Specification