Abstract: Luminaire controllers and methods for controlling luminaires are disclosed. A luminaire controller comprises a sensor input, a communication interface, a mode selector, a local control component, and a distributed control component. The sensor input receives sensor signals from occupancy sensing devices of a luminaire, the communication interface communicates with a lighting network, the mode selector selects an operating mode for the luminaire based on sensor signals and occupancy information, the local control component controls an illumination source of the luminaire according to a selected operating mode, and the distributed control component selectively broadcasts occupancy messages by initiating a distributed control procedure.

Abstract: A luminaire in a lighting network is controlled by receiving sensor signals from at least one occupancy sensing device of the luminaire; selecting one of a set of operating modes for the luminaire based on a combination of the sensor signals and incoming occupancy messages received at the luminaire from the lighting network; controlling an illumination source of the luminaire according to the selected operating mode; and selectively broadcast outgoing occupancy messages via the lighting network when a first of the operating modes is selected by initiating a distributed control procedure when an initiation event occurs, the distributed control procedure, once initiated, being performed as follows: if a randomized wait interval elapses relative to a timing of the initiation of the distributed control procedure without an incoming occupancy message being received from the lighting network, responding by broadcasting an outgoing occupancy message via the lighting network, wherein no outgoing occupancy message is