Patent ID: 6888459
Filing Date: 2005-05-03
Classification: G07C,G08B

Abstract:
1. A security system for use in a building with at least a first opening to be monitored for intrusion, said security system comprising: at least a first controller and a second controller, at least a first intrusion sensor monitoring at least the first opening, said first intrusion sensor being connected to a first RFID transponder, at least a first RFID reader in wireless communications with at least said first RFID transponder, and in communications with at least the first controller, wherein said first controller and said second controller both receive communications from said RFID reader indicating whether said intrusion sensor has detected an intrusion, and wherein said first controller and said second controller contain arbitration logic to determine which of said first controller and said second controller will in turn cause an alert indicating that said intrusion sensor has detected an intrusion.