Access control system

摘要

An access device for a system having at least one lock that is configured to receive instructions and to energize a lock mechanism to unlock the at least one lock and a computer is disposed at a remote location from the at least one lock and the access device. The computer is connected to a primary wireless communication path. The access device comprises at least one key configured for communicating with the computer via the primary wireless communication path and to communicate with the lock over a secondary wireless communications path and wherein the at least one key further is configured as authorized to unlock the at least one lock absent a de-authorizing instruction from the computer.

主权项

1. An access system comprising:
a computer for communicating over a primary wireless communication path; a lock including a lock circuit for communicating over a secondary wireless communication path, and for energizing a lock mechanism to unlock the lock based upon instructions received over the secondary wireless communication path; and a key including a key circuit for communicating with the computer over the primary wireless communication path, for communicating with the lock over the secondary wireless communication path, and for inductively coupling energy from the key to the lock to provide power to the lock circuit; wherein the key is authorized to unlock the lock absent a de-authorizing instruction from the computer and absent a determination that the key has not been in contact with the computer over the primary wireless communication path for a predetermined time amount during a predetermined period of time.