Abstract: A method for authorising the wireless connection of a first electronic device with a second electronic device for use in a lighting control system comprises the first electronic device 10 receiving a request to authorise wireless connection between the first electronic device 10 and the second electronic device 14. The first electronic device determines the presence of a third electronic device 12, and the first electronic device accepts the request only if the third electronic device is determined to be present.

Abstract: There is provided a lighting control system 1. The lighting control system comprises a portable device 10 comprising a communication unit configured for communication using a first communication protocol over a first communication channel 16. The portable device 10 is configured to send a lighting controller instruction via the communication unit. The lighting control system 1 also comprises a lighting controller 14 for controlling at least one light 20, 24, 28. The lighting controller 14 comprises a lighting controller communication unit configured for communication using a second communication protocol over a second communication channel 18 which is different to the first communication channel 16. The lighting controller is configured to receive a lighting controller command wirelessly via the lighting controller communication unit.

Abstract: There is provided a lighting controller for a luminaire (70, 71, 72, 73, 74, 75) in a room (50). The lighting controller comprises at least one switch (104, 106, 108, 110) adjustable to configure the lighting controller to operate in one of a first mode and a second mode. The lighting controller further comprises a receiver configured to receive a light level measurement for the room (10); a processor; and a memory comprising instructions. The instructions, when executed, cause the processor to: if the lighting controller is configured to operate in a first mode, output a first lighting control signal based on the light level measurement modified by a first factor; and if the lighting controller is configured to operate in a second mode, output a second lighting control signal based on the light level measurement modified by a second factor, different from the first factor.

Abstract: An addresser for configuring an electronic ballast/lighting control device in a network of electronic ballasts/lighting control devices; said addresser comprises a first connection to allow the receipt of communication from a controller; a second connection to allow communication from the addresser to an individual electronic ballast/lighting control device; an interface for communicating with a programming device; and means for configuring the communication between said first and second connections dependent upon the communication received from said programming device.

Abstract: Apparatus for controlling an electrical load, in particular for the environmental control of a room, comprises an occupancy sensor (5) comprising a thermopile array. The occupancy sensor is responsive to the presence of a person within a detection field (13) of the occupancy sensor (5). The apparatus further comprises a movement sensor (6) responsive to the movement of a person within a detection field of the movement sensor and a controller arranged to receive detection signals from the occupancy sensor (5) and the movement sensor (6) and to generate a control signal for the electrical load in response to the received detection signals. The controller is configured to generate a first control signal in response to detection of a person by the movement sensor (6) and to modify the first control signal to a second control signal in response to detection of a person by the occupancy sensor (5).

Abstract: A passive infra red detector comprises a plurality of passive infra red sensors (4, 5) and a lens member (2) arranged to direct radiation from a target area onto the sensors. The lens member (2) forms a substantially hemispherical dome about the infra red sensors (4, 5). The dome has a central axis and a plurality of contiguous facets (2a-2g) distributed about the central axis. Each facet has a flat outer surface and an inner surface that forms a lens to direct radiation onto the sensors. The detector further comprises a first passive infra red sensor (4) aligned with the central axis of the dome and having a sensitive surface substantially normal to the central axis, and a plurality of second passive infra red sensors (5) distributed about the central axis of the dome. The second passive infra red sensors (5) are inclined such that the outward normal from the sensitive surface of each second passive infra red sensor (5) makes an acute angle with the outward direction of the central axis.

Abstract: From one aspect the invention provides apparatus for controlling mains electrical circuits including lighting circuits, comprising a remotely controlled receiver unit responsive to received control signals, the receiver unit comprising means for decoding such received control signals in relation to at least two controlled channels for said circuits, means for each channel responsive to plural decoded control signal possibilities for providing signals for the said channel concerned, and selection means associated with the signal providing means for selecting whether or not particular said decoded signal possibilities result in said signals being available and applied to said channel.