Method of establishing communication with wireless control devices

摘要

The method of the present invention allows a first wireless control device that is operable to communicate on a predetermined one of a plurality of channels to establish communication with a second wireless control device that may be communicating on any of the plurality of channels. A beacon message is first transmitted repeatedly by the wireless control device on the predetermined channel. The second wireless control device listens for the beacon message for a predetermined amount of time on each of the plurality of channels. When the second control device receives the beacon message on the predetermined channel, the second control device begins communicating on the predetermined channel. The second wireless device may begin listening for the beacon message in response to powering up.

主权项

1. A control system operable to communicate on a designated radio frequency channel from amongst a plurality of radio frequency channels, the system comprising:
a beacon message transmitting device operable to—repeatedly transmit a beacon message on a first one of the plurality of radio frequency channels and to transmit a query message on the first one of the plurality of radio frequency channels; and a control device operable to receive a first transmitted signal on any of the plurality of radio frequency channels, and to monitor for the beacon message on each of the plurality of radio frequency channels for a first predetermined period of time after power has been removed and subsequently restored to the control device; the control device operable to receive the beacon message on the first one of the plurality of channels, to lock on to the first one of the plurality of channels on which the beacon message is received, and to subsequently halt further monitoring for the beacon message; wherein the control device is further operable to transmit a query message response if the control device receives the query message within a second predetermined period of time from when power was restored to the control device.