| 摘要 |
PROBLEM TO BE SOLVED: To provide an illuminance measuring apparatus, even when one light-receiving unit gets out of order, easily identifying the light-receiving unit with neither inhibiting data acquisition of other light-receiving units nor restricting an arrangement of the light-receiving units.SOLUTION: The illuminance measuring apparatus includes a signal processor 1 having a wireless LAN mater machine 3, and a plurality of optical receivers 4 each having a wireless LAN terminal 5 and each IP address; and causes the signal processor and the optical receivers to perform information communications with each other through the wireless LAN mater machine and the wireless LAN terminal. The signal processor has an IP address corresponding to each optical receiver, and issues an identification command including the IP address. The optical receiver has notice means and is configured to activate the notice means when the IP address of the identification command matches the self IP address. |
