| 摘要 |
<p>The fire alarm in accordance with the present invention includes: an alarm for providing fire warning; a receiver for receiving a wireless signal; and a controller configured to control the alarm and the receiver. The controller is configured to, upon acknowledging that the wireless signal received via the receiver is a warning signal, provide the fire warning by use of the alarm. The controller is configured to, upon determining that the wireless signal received via the receiver is a prior notice signal, calculate a cooperation waiting period including a sending time at which the warning signal is sent, and deactivate the receiver until the cooperation waiting period starts and activate the receiver throughout the cooperation waiting period.</p> |
