| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a wireless multi-hop network with high power saving and high responsiveness.SOLUTION: A wireless node 2 shifts to activated state, when transmitting a sensor value to a server 7. Then, the wireless node 2 transmits a wake-up signal WuS in unicast, and when a wireless node 1 shifts to an activated state, the wireless node 2 transmits the sensor value to the wireless node 1. Thereafter, the wireless node 2 shifts to a sleep state. On receiving the sensor value from the wireless node 2, the wireless node 1 transmits a wake-up signal WuS in unicast. When the wireless node of the server 7 shifts to an activated state, the wireless node 1 transmits the sensor value to the wireless node of the server 7. Then, the wireless node 1 shifts to the sleep state.</p> |
