Self-organizing sensor node network
First Claim
Patent Images
1. A method of monitoring a surveillance field, the method comprising:
- deploying sensor nodes into the surveillance field;
creating a sensor network using the sensor nodes;
establishing a node location for each sensor node;
establishing a node coverage for each sensor node, the node coverage being a portion of the surveillance field monitored by each sensor node;
determining an initial surveillance field coverage from the node coverages; and
disabling sensor nodes to reduce overlap between node coverages, to provide a final surveillance field coverage for the monitoring of the surveillance field, the final surveillance field coverage having a lower power requirement than the initial surveillance field coverage.
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Abstract
An improved network of sensor nodes can self-organize so as to reduce energy consumption and/or improve coverage of a surveillance field. Nodes within the network may be dynamically activated or deactivated so as to lengthen network lifetime and/or enhance sensor coverage of the surveillance field.
124 Citations
20 Claims
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1. A method of monitoring a surveillance field, the method comprising:
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deploying sensor nodes into the surveillance field;
creating a sensor network using the sensor nodes;
establishing a node location for each sensor node;
establishing a node coverage for each sensor node, the node coverage being a portion of the surveillance field monitored by each sensor node;
determining an initial surveillance field coverage from the node coverages; and
disabling sensor nodes to reduce overlap between node coverages, to provide a final surveillance field coverage for the monitoring of the surveillance field, the final surveillance field coverage having a lower power requirement than the initial surveillance field coverage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A monitoring system for monitoring a surveillance field, the system comprising:
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sensor nodes distributed over the surveillance field, the sensor nodes being in wireless communication with each other and forming a sensor network, a first sub-set of the sensor nodes having a global positioning capability, the remaining sensor nodes determining their location relative to the first sub-set, the sensor network dynamically activating and deactivating sensor nodes so as to increase sensor network lifetime while maintaining a minimum coverage of the surveillance field. - View Dependent Claims (15, 16, 17, 18, 19)
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20. A monitoring system for monitoring a surveillance field, the system comprising:
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sensor nodes distributed over the surveillance field, the sensor nodes being in wireless communication with each other and forming a sensor network, a minority of the sensor nodes being mobile nodes, the sensor network being self-organizing through movement of the mobile nodes so as to decrease energy requirements of the sensor network.
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Specification