Wireless Fire System with Idle Mode and Gateway Redundancy
First Claim
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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 primary gateway and a wireless subsystem of the gateway;
the primary gateway synchronizing the plurality of nodes by periodically transmitting a synchronization signal; and
one of the plurality of nodes detecting failure of the gateway and transmitting an idle synchronization signal for so long as the one of the plurality of nodes detects failure of the gateway.
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Abstract
A method and apparatus that includes the steps of 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 primary gateway and a wireless subsystem of the gateway, the primary gateway synchronizing the plurality of nodes by periodically transmitting a synchronization signal and one of the plurality of nodes detecting failure of the gateway and transmitting an idle synchronization signal for so long as the one of the plurality of nodes detects failure of the gateway.
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Citations
20 Claims
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1. A method comprising:
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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 primary gateway and a wireless subsystem of the gateway; the primary gateway synchronizing the plurality of nodes by periodically transmitting a synchronization signal; and one of the plurality of nodes detecting failure of the gateway and transmitting an idle synchronization signal for so long as the one of the plurality of nodes detects failure of the gateway. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An apparatus comprising:
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a plurality of wireless nodes including at least one parent node and at least one child node; a primary gateway; and a control panel that sends instructions to and receives data from the plurality of nodes through the primary gateway and a wireless subsystem of the gateway, wherein the primary gateway synchronizes the plurality of nodes by periodically transmitting a synchronization signal and wherein one of the plurality of nodes detects failure of the gateway and transmits an idle synchronization signal for so long as the one of the plurality of nodes detects failure of the gateway. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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20. An apparatus comprising:
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a plurality of wireless nodes including at least one parent node and at least one child node; a primary gateway that synchronizes each of the plurality of wireless nodes to the primary gateway; a control panel that sends instructions to and receives data from the plurality of nodes through the primary gateway and a wireless subsystem of the gateway, and wherein one of the plurality of nodes detects failure of the gateway and transmits an idle synchronization signal for so long as the one of the plurality of nodes detects failure of the gateway; and a backup gateway that synchronizes the plurality of nodes and that exchanges messages between the plurality of wireless nodes in place of the primary gateway upon detection of the idle synchronization signal.
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Specification