| 摘要 |
PROBLEM TO BE SOLVED: To provide a data collection system that can collect measurement data wirelessly outputted from slave sets each having a wireless communication function installed in a space of a building partitioned by construction materials reflecting/attenuating a radio wave without hindrance while bridging over the partitioned spaces. SOLUTION: Wireless watt-hour meters 6-1, 6-2, 6-3 are provided in distribution boards 5-1, 5-2, 5-3 on floors 1-1, 1-2, 1-3 of a building 1. Furthermore, wireless communication master units 7-1, 7-2, 7-3 are provided to the floors 1-1, 1-2, 1-3 and connected to a LAN cable 2 installed in the building 1 via hubs 3-1, 3-2, 3-3. A computer 4 provided in an administration room of the building is connected to the LAN cable 2 via a hub 3-0. |
