Patent ID: 8331264
Filing Date: 2012-12-11
Classification: H04L

Abstract:
1. A method for configuring a wireless sensor network that includes a plurality of sensor nodes and a sink node, comprising: (a) collecting location information about a plurality sensor nodes within a region of a sink node; (b) setting the sensor nodes, which have sensing regions including at least a portion of a transmitting region of the sink node, to an active node state one or more of the plurality of inactive nodes is set to an active node based on the location information; and (c) configuring a network including the active nodes from (b); wherein setting the sensor nodes to an active node in (b) comprises: (i) setting the sensor nodes, located at the outermost location within the transmitting region of the sink node, to an existing reference node; (ii) selecting one of the sensor nodes, set to the existing reference node in (i), as a new reference node, wherein the sensor node selected to be the new reference node is one of the sensor nodes located in an operation location with respect to the existing reference node and is selected so that sensor nodes, other than the sensor node selected to be the new reference node, are located on a straight line of a segment that connects the reference node and the sensor node selected to be the new reference node or located in the operation direction of the segment; (iii) repeating the selecting of one of the sensor nodes, set as the existing reference node, as another new reference node, using the another new reference node until a polygon is completed by the segments; and (iv) setting all of the reference nodes to an active node state.