WIRELESS CEILING COMMUNICATION BUS SYSTEM

摘要

A wireless communication bus system for transmitting electromagnetic signa ls 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 wirele ss 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 t he wireless transmitter/receiver module. The wireless transmitter/receiver modules opera te on different frequencies set by the controller to enable direct communication with targeted devices.