Abstract: A method in a lighting system includes a lighting system control entity and a plurality of luminaires wirelessly coupled to the lighting system control entity. The method includes controlling light output of a respective luminaire in accordance with a preprogrammed lighting control logic that defines switching on the light output in response to detecting occupancy at the respective luminaire, transmitting status indications to and receiving status indications from other luminaires, deriving relationship data including one or more relationship strength values, each pertaining to a particular other luminaire and being descriptive of an extent of regularity at which reception of a status indication that indicates an occurrence of a given event pertaining to the particular luminaire is followed by detecting occupancy at the respective luminaire, and transmitting the relationship data to the lighting system control entity.

Abstract: An arrangement for driving one or more light sources is provided. According to an example embodiment, the arrangement includes observing durations of active periods, wherein an active period corresponds to a continuous period of operating power being supplied to a driver apparatus, selecting one of a plurality of lighting programs for the driver apparatus in accordance with the observed durations of one or more active periods, wherein a lighting program defines the desired characteristics of light provided by the one or more light sources as a function of time for a subsequent active period, and controlling, in response to an active period, provision of operating power from the driver apparatus to the one or more light sources in accordance with the most recently selected lighting program.

Abstract: A technique for controlling a luminaire using a controller preprogrammed to cause the luminaire to carry out a predefined action as a response to an occurrence of a predefined triggering condition is provided. The technique comprises storing, into a memory, status indications received in the status indication messages from the other devices, analyzing the stored status indications in an attempt to identify a sequence of one or more status indications that repeatedly precede an occurrence of said predefined triggering condition, and reprogramming, in response to identifying a sequence of status indications that repeatedly precede an occurrence of said predefined triggering condition, the controller to cause the luminaire to initiate or to carry out a preparatory action for carrying out said predefined action as a response to reception of said identified sequence of status indications.

Abstract: An arrangement for driving one or more light sources is provided. According to an example embodiment, the arrangement includes observing durations of active periods, wherein an active period corresponds to a continuous period of operating power being supplied to a driver apparatus, selecting one of a plurality of lighting programs for the driver apparatus in accordance with the observed durations of one or more active periods, wherein a lighting program defines the desired characteristics of light provided by the one or more light sources as a function of time for a subsequent active period, and controlling, in response to an active period, provision of operating power from the driver apparatus to the one or more light sources in accordance with the most recently selected lighting program.

Abstract: A technique for controlling a luminaire using a controller preprogrammed to cause the luminaire to carry out a predefined action as a response to an occurrence of a predefined triggering condition is provided. The technique comprises storing, into a memory, status indications received in the status indication messages from the other devices, analyzing the stored status indications in an attempt to identify a sequence of one or more status indications that repeatedly precede an occurrence of said predefined triggering condition, and reprogramming, in response to identifying a sequence of status indications that repeatedly precede an occurrence of said predefined triggering condition, the controller to cause the luminaire to initiate or to carry out a preparatory action for carrying out said predefined action as a response to reception of said identified sequence of status indications.