USE OF MINIMAL PROPAGATION DELAY PATH TO OPTIMIZE A MESH NETWORK
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Accused Products
Abstract
The present technology relates to protocols relative to utility meters associated with an open operational framework. More particularly, the present subject matter relates to protocol subject matter for advanced metering infrastructure, adaptable to various international standards, while economically supporting a 2-way mesh network solution in a wireless environment, such as for operating in a residential electricity meter field. The present subject matter supports meters within an ANSI standard C12.22/C12.19 system while economically supporting a 2-way mesh network solution in a wireless environment, such as for operating in a residential electricity meter field, all to permit cell-based adaptive insertion of C12.22 meters within an open framework. Particular present features relate to the use of minimal propagation delay path to optimize a mesh network.
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Citations
38 Claims
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1-22. -22. (canceled)
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23. A method for optimizing an advanced metering system mesh network, comprising:
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establishing a network including a central facility root node and a plurality of linked node devices, at least some of the node devices comprising metrology devices; configuring the network for bi-directional communications between the central facility root node and each of the plurality of node devices; computing an average local propagation delay for each node device for each one-hop link to itself; computing a total value of propagation delay along each path from each node device to the central facility root node based on the average local propagation delay and global propagation delay values stored in immediate neighbor devices; selecting at each node device the lowest value of total values of propagation delay to define its own global propagation delay value; and conducting communications using the path corresponding to the selected value, whereby communications among nodes within the network are optimized. - View Dependent Claims (24, 25, 26, 27, 28)
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29. A method for optimizing an advanced metering system mesh network, comprising:
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establishing a network including a central facility root node and a plurality of linked node devices, at least some of the node devices comprising metrology devices; configuring the network for bi-directional communications between the central facility root node and each of the plurality of node devices; computing an average local propagation delay for each one-hop link; propagating global propagation delay information from the central facility root node to each of the node devices on a step by step basis; storing global propagation delay information at each node device; and
conducting communications using a path corresponding to the lowest value of total propagation delay based on the stored global propagation delay information and the average local propagation delay,whereby each node device selects a communications path based only on knowledge of its own average local propagation delay and the global propagation delay information from immediate neighbor node devices. - View Dependent Claims (30, 31, 32, 33)
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34. An advanced metering system mesh network, comprising:
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a central facility root node; and a plurality of node devices, each node device configured for bi-directional communications with said central facility root node, at least some of the node devices comprising metrology devices; wherein each node device is further configured to compute an average local propagation delay for each one-hop link to itself in the mesh network and to select a shortest transmission path to said central facility root node based only on its own computed average propagation delay and global propagation delay information stored in its immediate neighbors; whereby communications between said central facility root node and said plurality of node devices are optimized. - View Dependent Claims (35, 36, 37, 38)
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Specification