Patent ID: 9264161
Filing Date: 2016-02-16
CPC Classification: G08B,H04J,H04L,H04W

Claim Text:
1. A method comprising: providing a plurality of wireless nodes including at least one parent node and at least one child node; a control panel sending instructions to and receiving data from the plurality of nodes through a wired connection with a primary gateway and a wireless subsystem of the primary gateway; the primary gateway synchronizing the plurality of nodes into a network by periodically transmitting a synchronization signal; one of the plurality of nodes detecting failure of the primary gateway and transmitting an idle mode synchronization signal for so long as the one of the plurality of nodes detects failure of the primary gateway; a backup gateway wired to the control panel initializing and synchronizing with the network and then entering a sleep mode; the backup gateway detecting the idle mode synchronization signal from the one of the plurality of nodes and assuming a role of the primary gateway; and upon detecting an over-riding synchronization signal from the primary gateway, the backup gateway resuming its backup state, wherein there are no differences between the primary and backup gateways except that the backup gateway includes a backup control program.