Security system and method for using an LF activated RFID tag
US8026811B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 2, 2008 |
| Grant date | Sep 27, 2011 |
| Priority date | — |
| Expiry date | Aug 27, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B25/008
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A security system includes a system control panel for arming and disarming a security system. A door sensing unit is mounted proximate to a door to be monitored. The door sensing unit includes a door contact, a radio frequency (RF) transceiver, and a low frequency (LF) transmitter. The door contact is configured to detect open and closed states of the door. The RF transceiver is interconnected with the system control panel over a network and the LF transmitter transmits an LF data packet when the door contact detects the open state of the door. A disarm device having an LF detection circuit detects the LF data packet. The disarm device transmits an RF disarm data packet based on the LF data packet. The RF transceiver transmits a disarm message to the system control panel over the network to disarm the security system based on the RF disarm data packet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.