G - Physics – 08 – C
Patent
G - Physics
08
C
G08C 17/02 (2006.01) G05B 15/00 (2006.01) H04B 1/38 (2006.01) H04L 12/28 (2006.01)
Patent
CA 2315554
A wireless communication bus system for transmitting electromagnetic signals to and from devices located in defined areas of a managed building space partitioned into a plurality of rooms is disclosed. A controller device located above a ceiling grid system generates electromagnetic signals to control operation of the devices through a plurality of wireless transmitter/receiver modules, also located above the ceiling grid. The wireless transmitter/receiver devices together form a wireless communication bus and relay electromagnetic control signals between the controller and the controlled devices. Wireless repeater transmitter/receiver modules can also be added to the wireless communication bus to relay electromagnetic signals between other wireless transmitter/receiver devices that form part of the wireless bus. Each wireless transmitter/receiver module has a unique address that can be selected by the controller in order to relay an electromagnetic signal to a device that is closest to the wireless transmitter/receiver module. The wireless transmitter/receiver modules operate on different frequencies set by the controller to enable direct communication with targeted devices.
Cronin John E.
Frecska Sandor A.
Armstrong World Industries Inc.
Gowling Lafleur Henderson Llp
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