| 摘要 |
In the present invention, a control unit: designates a text string showing the address of a wireless communication unit, and a prescribed command relating to control of a lighting unit by the control unit, thereby instructing the wireless communication unit to transmit a message including the text string showing the command; and, after the command is transmitted, sets as a determination time a limit value for a response time until a response to the command is received. The control unit executes a process corresponding with the command included in the message received by the wireless communication unit, and instructs the wireless communication unit to transmit a response message corresponding with the command. The control unit determines whether the response message was received within the determination time. |
