| 摘要 |
PROBLEM TO BE SOLVED: To control lighting timing of a light-emitting apparatus by a simple configuration.SOLUTION: A control apparatus 10 generates and transmits an operation command message to a wired network. A relay apparatus 12, on receiving an operation command message extracts a time count value described in the operation command message, adds a transit delay count value to the time count value, to update the time count value. The relay apparatus 12 describes the updated time count value by overwriting on the operation command message, to radio transmit the operation command message. On receiving the operation command message, a light-emitting apparatus 14 extracts the time count value from the operation command message, to execute synchronous processing to synchronize the light emission count value of the light-emitting apparatus 14 with the time count value of the control apparatus 10. Based on event information extracted from the operation command message, the light-emitting apparatus 14 executes a light-emitting event according to the light emission count value.SELECTED DRAWING: Figure 3 |
