Sensor network for aggregating data and data aggregation method
First Claim
1. A sensor network comprising:
- a representative sensor node which collects information of a grid area that includes at least two sensor nodes, and transmits the collected information of the grid area; and
a sink node which selects the representative sensor node by randomly searching the at least two sensor nodes in the grid area and aggregates the collected information of the grid area received from the representative sensor node.
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Accused Products
Abstract
A sensor network for aggregating data and data aggregation method. The sensor network includes a representative sensor node for collecting information in a predefined grid area that includes at least two sensor nodes, and transmitting the collected information of the predefined grid area; and a sink node for selecting the representative sensor node by randomly searching the sensor nodes in the predefined grid area and aggregating information of the predefined grid area from the selected representative sensor node. Accordingly, since the amount of the delivered data reduces and the overload is also lowered, the power consumption for the data transmission over the sensor network can be reduced. In addition, it is possible to control the data transmission rate depending on the correlation, and the quality of the delivered data can be enhanced.
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Citations
18 Claims
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1. A sensor network comprising:
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a representative sensor node which collects information of a grid area that includes at least two sensor nodes, and transmits the collected information of the grid area; and
a sink node which selects the representative sensor node by randomly searching the at least two sensor nodes in the grid area and aggregates the collected information of the grid area received from the representative sensor node. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A data aggregation method for a sensor network including a plurality of sensor nodes which collect information of a grid area, a representative sensor node which transmits the collected information of the grid area to a sink node, and the sink node for aggregating the information received from the representative sensor node, the method comprising:
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defining a target region in the grid area that covers at least two sensor nodes;
selecting the representative sensor node by randomly searching the at least two sensor nodes in the grid area of the target region; and
aggregating the collected information of the grid area received from the representative sensor node. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification