| 摘要 |
Wireless access points integrate building functions for improved building safety and reduced building wiring. A battery associated with a wireless access point is charged using power from a Power over Ethernet cable. The battery supports functions of the wireless access point and one or more building devices in the event of a power failure, the building devices communicating information through the wireless access point. For instance, emergency lighting and textual lamps are illuminated with the battery in the event of a power outage. As another example, fire sensors, fire alarms and intercoms provide emergency workers information and voice communication regarding the area within the proximity of a wireless access point to aid in rescue or fire fighting efforts.
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