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Control of low power wireless networks for power conservation

  • US 20070165545A1
  • Filed: 01/11/2007
  • Published: 07/19/2007
  • Est. Priority Date: 01/11/2006
  • Status: Active Grant
First Claim
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1. A method of operating a wireless mesh network to route messages between a host computer and a plurality of field devices, the wireless network having a plurality of nodes capable of transmitting and receiving messages with each node being associated with at least one of the field devices, the method comprising:

  • synchronizing the nodes of the network to a global regular active schedule that defines when messages can be transmitted and received by the nodes;

    receiving a message from the host computer addressed to a selected field device;

    activating nodes of the network according to the global regular active schedule; and

    maintaining those nodes required to route messages to the selected field device in an active state as long as the host computer is communicating with the selected field device.

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