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Door security system audit trail

  • US 7,019,614 B2
  • Filed: 09/17/2002
  • Issued: 03/28/2006
  • Est. Priority Date: 02/07/1995
  • Status: Expired due to Fees
First Claim
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1. An electronic control system operable to control access to a plurality of doors by a plurality of users, the system comprising:

  • a plurality of door controllers, each door controller operable to control access to one of the plurality of doors and including memory, data storage, an input device, and a processor, each door controller storing the users identity and time of access within the data storage following each attempted access to the door; and

    a central computer including an input device, memory, data storage, and a processor, the central computer operable to program each of the door controllers individually and to program at least two door controllers simultaneously in a group in response to the addition or removal of a user, the computer connected to each of the door controllers and selectively communicating with at least one of the plurality of door controllers to facilitate data transfer therebetween.

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