Patent ID: 11924084
Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A path selection apparatus that selects a path in a sensor tree in a wireless sensor network including a plurality of nodes including a sensor node and a relay node, the path selection apparatus comprising:
a node information acquisition unit, including one or more processors, configured to acquire information on the plurality of nodes; and
a path determination unit, including one or more processors, configured to determine a path in the sensor tree based on the information on the plurality of nodes acquired by the node information acquisition unit,
wherein the path determination unit is configured to:
use node costs of the sensor node and the relay node in the wireless sensor network and weight a path cost of a path passing through the relay node; and
continue selecting a tree node until all of a plurality of sensor nodes are set as tree nodes in the sensor tree, and if, among a plurality of relay nodes, a relay node that does not transmit or receive a sensor report is present in a generated tree, delete the relay node.