Real-time room occupancy monitoring system

Communications: electrical – Condition responsive indicating system – With particular coupling link

Reexamination Certificate

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Details

C340S524000, C340S565000, C340S567000, C340S870030, C705S005000

Reexamination Certificate

active

07554437

ABSTRACT:
A room occupancy monitoring system monitors the occupancy status of a plurality of rooms and collects and displays the room occupancy information in real time. The room occupancy monitoring system includes a plurality of room occupancy sensor devices and a server. Each of the room occupancy sensor devices is located in a corresponding one of a plurality of rooms, detects whether the corresponding one of the plurality of rooms is occupied, and generates a first signal indicating whether the corresponding one of the plurality of the rooms is occupied and a second signal indicative of the identity of the corresponding one of the rooms. The server receives the first signal and the second signal from the room occupancy sensor devices through a data communication network and displays room occupancy information of the plurality of the rooms based on the first signal and the second signal on a display device.

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patent: 2003/0097284 (2003-05-01), Shinozaki
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Chan, C. et al. “Room Occupancy Detection with Power Line Positioning in a Wireless Sensor Network,” Princeton University, May 15, 2007, [online] [Retrieved Mar. 26, 2008] Retrieved from the Internet<URL:http://www.princeton.edu/˜ckctwo/cos479/plp—project—paper.pdf>.
Conner, W.S. et al. “Workplace Applications of Sensor Networks,” Intel Research and Development and University of Southern California Information Science Institute, 2004, [online] [Retrieved Mar. 26, 2008] Retrieved from the Internet<URL:http://isi.edu/div7/publication—files/Conner04a.pdf>.

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