Communicating a localized building alert

1. An apparatus comprising:

a building controller that controls a building system that comprises a lighting system;

a processor;

a memory that stores code executable by the processor to:

detect an emergency event;

in response to detecting the emergency event, identify an aid recipient with a needs description specifying that the aid recipient is unable to walk;

identify an egress route comprising a sequential order of rooms; and

communicate a localized building alert through the lighting system, wherein the localized building alert encodes that the aid recipient is unable to walk with a specified number of off pulses of lights of the lighting system that occur periodically and is communicated sequentially along the egress route from the lighting system of each next room along the egress route, wherein the localized building alert is no longer communicated in each room after detecting that the aid recipient leaves the room.

2. The apparatus of claim 1 , wherein the localized building alert is further encoded with one or more of aid needed by the aid recipient, an identity of the aid recipient, and a rescue route.

3. The apparatus of claim 1 , wherein the code is further executable by the processor to:

monitor building sensors;

identify an emergency event type from sensor data from the building sensors; and

determine the localized building alert in response to the emergency event type.

4. The apparatus of claim 1 , wherein the emergency event is a physical emergency event detected by a building sensor and the physical emergency event is selected from the group consisting of a fire, a flood, extreme weather, and a home invasion.

5. The apparatus of claim 1 , wherein the emergency event is a medical emergency event type detected by a biosensor.

6. A method comprising:

detecting, by use of a processor, an emergency event;

in response to detecting the emergency event, identifying an aid recipient with a needs description specifying that the aid recipient is unable to walk;

identifying an egress route comprising a sequential order of rooms; and

communicating a localized building alert through a building system, wherein the localized building alert encodes that the aid recipient is unable to walk with a specified number of off pulses of lights of the lighting system that occur periodically and is communicated sequentially along the egress route from the lighting system of each next room along the egress route, wherein the localized building alert is no longer communicated in each room after detecting that the aid recipient leaves the room.

7. The method of claim 6 , wherein the localized building alert is further encoded with one or more of aid needed by the aid recipient, an identity of the aid recipient and a rescue route.

8. The method of claim 6 , wherein the method further comprises:

monitoring building sensors;

identifying an emergency event type from sensor data from the building sensors; and

determining the localized building alert in response to the emergency event type.

9. The method of claim 6 , wherein the emergency event is a physical emergency event detected by a building sensor and the physical emergency event is selected from the group consisting of a fire, a flood, extreme weather, and a home invasion.

10. The method of claim 6 , wherein the emergency event is a medical emergency event type detected by a biosensor.

11. A program product comprising a non-transitory computer readable storage medium that stores code executable by a processor, the executable code comprising code to perform: detecting an emergency event; in response to detecting the emergency event, identifying an aid recipient with a needs description specifying that the aid recipient is unable to walk; identifying an egress route comprising a sequential order of rooms; and communicating a localized building alert through a building system, wherein the localized building alert encodes that the aid recipient is unable to walk with a specified number of off pulses of lights of the lighting system that occur periodically and is communicated sequentially along the egress route from the lighting system of each next room along the egress route, wherein the localized building alert is no longer communicated in each room after detecting that the aid recipient leaves the room.

12. The program product of claim 11 , wherein the localized building alert is further encoded with one or more of aid needed by the aid recipient, an identity of the aid recipient and a rescue route.

13. The program product of claim 11 , wherein the processor further performs:

monitoring building sensors;

identifying an emergency event type from sensor data from the building sensors; and

determining the localized building alert in response to the emergency event type.