Centralized control of area lighting hours of illumination

1. A method of operation for a processor-based device to control a plurality of remotely located luminaires, the method comprising:

receiving, by at least one central control processor, illumination data relating to at least one of ambient illumination or time of day;

generating, at the at least one central control processor, a set of illumination commands based at least in part on the received illumination data, each one of the illumination commands in the set directed to a different subset of a plurality of luminaires; and

sequentially distributing each of the illumination commands in the set of illumination commands through a power-line power distribution system.

2. The method of claim 1 , further comprising:

receiving, at the plurality of luminaires, the illumination commands through the power-line power distribution system; and

controlling, at each of the plurality of luminaires, illumination of each respective luminaire based at least in part on the received illumination commands.

3. The method of claim 2 wherein controlling the illumination of each respective luminaire based at least in part on the received illumination commands comprises:

controlling, at a first subset of the plurality of luminaires, each respective luminaire in the first subset to be in an illuminating state; and

controlling, at a second subset of the plurality of luminaires, each respective luminaire in the second subset to be in a non-illuminating state.

4. The method of claim 1 wherein receiving illumination data comprises receiving photosensor data obtained from a photosensor operatively coupled to the at least one central control processor.

5. The method of claim 1 wherein receiving illumination data comprises receiving time data from a clock operatively coupled to the at least one central control processor.

6. The method of claim 1 wherein generating a set of illumination commands based at least in part on the received illumination data comprises generating an illumination command that commands a first subset of the plurality of luminaires to be in an illuminating state and commands a second subset of the plurality of luminaires to be in a non-illuminating state.

7. The method of claim 1 wherein generating a set of illumination commands based at least in part on the received illumination data comprises generating an illumination command that commands luminaires in the plurality of luminaires associated with a first set of logical addresses to be in an illuminating state and commands luminaires in the plurality of luminaires associated with a second set of logical addresses to be in a non-illuminating state.

8. The method of claim 1 wherein generating a set of illumination commands based at least in part on the received illumination data comprises generating a set of illumination commands, each of the illumination commands in the set of illumination commands directed to luminaires associated with a unique set of logical addresses.

9. The method of claim 1 , further comprising:

receiving, at the plurality of luminaires, the illumination commands in the set of illumination commands through the power-line power distribution system; and

controlling, at each of the plurality of luminaires, the illumination of each respective luminaire based at least in part on the received illumination commands.

10. The method of claim 1 , further comprising:

partitioning the plurality of luminaires into at least two subsets based at least in part on a geographical location of each of the luminaires; and

logically associating each luminaire with one of the at least two subsets in a nontransitory processor-readable storage medium;

wherein generating a set of illumination commands based at least in part on the received illumination data comprises generating a first illumination command directed to one of the subsets of luminaires in the at least two subsets and a second illumination command directed to another of the subsets of luminaires in the at least two subsets.

11. The method of claim 1 wherein distributing each of the illumination commands in the set of illumination commands through a power-line power distribution system comprises superimposing each of the illumination commands in the set of illumination commands onto a power line of the power-line power distribution system.

12. The method of claim 1 wherein receiving illumination data relating to at least one of ambient illumination or time of day comprises receiving illumination data from an illumination data source positioned remote from at least some of the plurality of luminaires.

13. An illumination system, comprising:

at least one central control system comprising:

at least one central control processor;

at least one illumination data source operatively coupled to the at least one central control processor;

a central transceiver operatively coupled to the at least one central control processor and a power-line power distribution system; and

at least one nontransitory processor-readable storage medium operatively coupled to the at least one central control processor and storing at least one of data or instructions which, when executed by the at least one central control processor, cause the at least one central control processor to:

receive illumination data from the at least one illumination data source relating to at least one of ambient illumination or time of day;

generate a set of illumination commands based at least in part on the received illumination data, each one of the illumination commands in the set directed to a different subset of a plurality of luminaires; and

sequentially distribute each of the illumination commands in the set of illumination commands through the power-line power distribution system via the central transceiver.

14. The illumination system of claim 13 , further comprising:

the plurality of luminaires, each of the luminaires comprising:

at least one luminaire control processor;

at least one light source operatively coupled to the luminaire control processor;

a luminaire transceiver operatively coupled to the at least one luminaire control processor and the power-line power distribution system; and

at least one nontransitory processor-readable storage medium operatively coupled to the at least one luminaire control processor and storing at least one of data or instructions which, when executed by the at least one luminaire control processor, cause the at least one luminaire control processor to:

receive an illumination command in the set of illumination commands through the power-line power distribution system via the luminaire transceiver; and

control the operation of the at least one light source based at least in part on the received illumination command.

15. The illumination system of claim 14 wherein, in response to receipt of the illumination command from the at least one central control processor, the at least one luminaire control processor of each respective luminaire in a first subset of luminaires controls the light source to be in an illuminating state, and the at least one luminaire control processor of each respective luminaire in a second subset of luminaires controls the light source to be in a non-illuminating state.

16. The illumination system of claim 13 wherein the illumination data source comprises a photosensor operatively coupled to the central control processor, and the at least one central control processor receives photosensor data from the photosensor.

17. The illumination system of claim 13 wherein the illumination data source comprises a clock operatively coupled to the central control processor, and the at least one central control processor receives time data from the clock.

18. The illumination system of claim 13 wherein the

set of illumination commands commands a first subset of the plurality of luminaires to be in an illuminating state and commands a second subset of the plurality of luminaires to be in a non-illuminating state.

19. The illumination system of claim 13 wherein the

set of illumination commands commands luminaires in the plurality of luminaires associated with a first set of logical addresses to be in an illuminating state and commands luminaires in the plurality of luminaires associated with a second set of logical addresses to be in a non-illuminating state.

20. The illumination system of claim 13 wherein

each of the illumination commands in the set of illumination commands directed to luminaires associated with a unique set of logical addresses.

21. The illumination system of claim 13 wherein the at least one central control processor:

partitions the plurality of luminaires into at least two subsets based at least in part on a geographical location of each of the luminaires; and

logically associates each luminaire with one of the at least two subsets in the at least one nontransitory processor-readable storage medium;

wherein a first illumination command in the set of illumination commands directed to one of the subsets of luminaires in the at least two subsets and a second illumination command in the set of illumination commands directed to another of the subsets of luminaires in the at least two subsets.

22. The illumination system of claim 13 wherein the at least one central transceiver superimposes the set of illumination commands onto a power line of the power-line power distribution system, and the luminaire transceiver of each luminaire receives distributed power from the power line of the power-line power distribution system, and separates at least one respective illumination command in the set of illumination commands from the distributed power.

23. The illumination system of claim 13 wherein the illumination data source is positioned remote from at least some of the plurality of luminaires.

24. A method of operation for a processor-based device to control a plurality of remotely located luminaires, the method comprising:

receiving, by at least one central control processor, illumination data relating to at least one of ambient illumination or time of day;

generating, at the at least one central control processor, a set of illumination commands based at least in part on the received illumination data, each one of the illumination commands in the set directed to a different subset of a plurality of luminaires; and

sequentially distributing each of the illumination commands in the set of illumination commands through a power-line power distribution system to the plurality of luminaires;

wherein each of the plurality of luminaires receives at least one respective illumination command in the set of illumination commands through the power-line power distribution system and controls the operation of each respective luminaire based at least in part on the at least one received respective illumination command.

25. An illumination system to control the operation of a plurality of luminaires, the illumination system comprising:

at least one central control system comprising:

at least one central control processor;

at least one illumination data source operatively coupled to the at least one central control processor;

a central transceiver operatively coupled to the at least one central control processor and a power-line power distribution system; and

at least one nontransitory processor-readable storage medium operatively coupled to the at least one central control processor and storing at least one of data or instructions which, when executed by the at least one central control processor, cause the at least one central control processor to:

receive illumination data from the at least one illumination data source relating to at least one of ambient illumination or time of day;

generate a set of illumination commands based at least in part on the received illumination data, each one of the illumination commands in the set directed to a different subset of a plurality of luminaires; and

sequentially distribute each of the illumination commands in the set of illumination commands through the power-line power distribution system via the central transceiver to the plurality of luminaires, each of the plurality of luminaires receives at least one respective illumination command in the set of illumination commands through the power-line power distribution system and controls the operation of each respective luminaire based at least in part on the at least one received respective illumination command.

26. The method of claim 24 wherein distributing each of the illumination commands in the set of illumination commands through a power-line power distribution system comprises superimposing each of the illumination commands in the set of illumination commands onto a power line of the power-line power distribution system.

27. The illumination system of claim 25 wherein the at least one central transceiver superimposes the set of illumination commands onto a power line of the power-line power distribution system, and each of the plurality of luminaires receives distributed power from the power line of the power-line power distribution system.