| 摘要 |
PROBLEM TO BE SOLVED: To suppress throughput reduction.SOLUTION: An end node 20 transmits data to a hub. The end node 20 includes a scan function unit 22 and a channel switchover control unit 23. The scan function unit 22 detects the deterioration of a communication state with the hub using a channel Ch3. When the deterioration of the communication state is detected by the scan function unit 22, the channel switchover control unit 23 transmits data to an intermediate node communicable with the hub, using a channel Ch1 having a different frequency from the channel Ch3. The intermediate node receives the data using the channel Ch1, and transfers the data to the hub using the channel Ch3. |
