Abstract: A lighting arrangement has a lighting module with a sensor element in parallel with a light source arrangement between module terminals. A measuring system is provided for measuring, at the module terminals, a signal which is dependent on the sensor element when the light source arrangement is turned off. Thus, sensing is integrated into or connected to a lighting module, such as LED module.

Abstract: In one aspect, a device is adapted to transmitting power to, or receive power from, a remote device over first and second communication lines (DALI+, DALI?) and to communicate with the remote device over the first and second communication lines. A first driver implements a first communications protocol which comprises coupling the first and second communication lines together to encode a first signal level and isolating the first and second communication lines from each other to encode a second signal level. This may be a DALI protocol. A second driver implements a second communications protocol which comprises modulating the first communication line with a signal having a low modulation depth. The second communications protocol means there is always a voltage difference between the two communication lines to enable continuous power harvesting. A second aspect relates to efficient power transfer by disabling a current limiter function, when possible.

Abstract: The invention relates to a peripheral device for communicating with a host and for controlling a controlled device, to a system including such peripheral device and at least the controlled device and to a corresponding method including a communication and a controlling. In order to allow for a possibility for upgrading controlled devices with further functionality during their service life at low initial costs or efforts on the side of the controlled devices, it is provided for an interconnection between a portion of the system using a complex standard and another portion of the system not using such standard by means of the peripheral device having a dual purpose, as a peripheral device to the standard compliant host and as a controlling device to the controlled device. In both cases, however, power is provided to the peripheral device from either the host or from the controlled device.

Abstract: A distributed control system including a plurality of controllers, each controller of the plurality of controllers being in communication with the remaining controllers of the plurality of controllers, each controller being configured to control at least one device, each controller being further configured to: initiate a first timer, in response to a received signal, the first timer having a length that is unique with respect to the first timer lengths of the remaining controllers of the plurality of controllers; send a first notification signal, upon the expiration of the first timer, to the remaining controllers notifying the remaining controllers of an intent to send a command signal; send the command signal to the at least one device, wherein the controller is configured to cancel sending the notification signal and the command signal if the notification signal is first received from one of the remaining controllers of the plurality of controllers prior to the expiration of the first timer.

Abstract: A distributed control system including a plurality of controllers, each controller of the plurality of controllers being in communication with the remaining controllers of the plurality of controllers, each controller being configured to control at least one device, each controller being further configured to: initiate a first timer, in response to a received signal, the first timer having a length that is unique with respect to the first timer lengths of the remaining controllers of the plurality of controllers; send a first notification signal, upon the expiration of the first timer, to the remaining controllers notifying the remaining controllers of an intent to send a command signal; send the command signal to the at least one device, wherein the controller is configured to cancel sending the notification signal and the command signal if the notification signal is first received from one of the remaining controllers of the plurality of controllers prior to the expiration of the first timer.

Abstract: Provided is a lighting device including a light source for emitting light, a sensor configured to detect infrared radiation from a plurality of locations along a path in the field of view of the sensor, at least one attenuation element arranged between at least one location of the plurality of locations and the sensor so as to attenuate or block infrared radiation emitted from the at least one location before it reaches the sensor, and a controller. The at least one attenuation element is further arranged in relation to the field of view of the sensor for the signal output from the sensor to indicate, when an occupant is moving along the path, a direction of movement of the occupant along the path.

Abstract: A retrofit Light Emitting Diode, LED, tube for replacing a fluorescent tube, wherein said retrofit LED tube is arranged to be connected to a ballast, said retrofit LED tube comprising a ballast determining unit arranged for identifying a type of ballast connected to said retrofit LED tube by controlling an output voltage of said power rectifier to a first voltage and measuring a first current provided by said power rectifier, controlling said output voltage of said power rectifier to a second voltage and measuring a second current provided by said power rectifier, wherein said second voltage differs from said first voltage and determining said type of ballast based on said first and second output voltages and said measured first and second currents, wherein said ballast determining unit is further arranged to configure said configurable matching circuit based on said determined type of ballast.

Abstract: Provided is a lighting device including a light source for emitting light, a sensor configured to detect infrared radiation from a plurality of locations along a path in the field of view of the sensor, at least one attenuation element arranged between at least one location of the plurality of locations and the sensor so as to attenuate or block infrared radiation emitted from the at least one location before it reaches the sensor, and a controller. The at least one attenuation element is further arranged in relation to the field of view of the sensor for the signal output from the sensor to indicate, when an occupant is moving along the path, a direction of movement of the occupant along the path.

Abstract: According to a concept of the invention, there is proposed a communication interface that enables communication and power transfer between a luminaire and a connectable module. The communication interface comprises a driver circuit which generates an AC power supply for a primary winding, the primary winding being magnetically couplable to a secondary winding for powering the connectable module. A data sensing arrangement is adapted to detect a variation in the voltage/current of the primary winding which has been induced by the secondary winding. A control arrangement selectively couples a first and second DC input, upon which the AC power supply is based, together or to a common voltage.

Abstract: The present invention relates to a signaling system, methods and computer program products for increasing data rate of addressable lighting networks (e.g. DALI networks). A bus clamping technique is suggested to allow fast data communication without affecting operation of normal network devices. The proposed scheme is useful in applications such as outdoor luminaires where the network data rate is too low for use cases that require 5 real-time microphone or image data transfer, for example.

Abstract: A start of packet detector comprises an input which receives start of packet information. The detector has a first stage which determines if there is a match between a respective subset of received start of packet information with a respective subset of reference start of packet information. The first stage repeats the determining for each of the subsets of received start of packet information and said respective subset of reference start of packet information. An output will provide a start of packet detected output which is dependent on the determining of the first stage.

Abstract: A retrofit Light Emitting Diode, LED, tube for replacing a fluorescent tube, wherein said retrofit LED tube is arranged to be connected to a ballast, said retrofit LED tube comprising a ballast determining unit arranged for identifying a type of ballast connected to said retrofit LED tube by controlling an output voltage of said power rectifier to a first voltage and measuring a first current provided by said power rectifier, controlling said output voltage of said power rectifier to a second voltage and measuring a second current provided by said power rectifier, wherein said second voltage differs from said first voltage and determining said type of ballast based on said first and second output voltages and said measured first and second currents, wherein said ballast determining unit is further arranged to configure said configurable matching circuit based on said determined type of ballast.

Abstract: According to a concept of the invention, there is proposed a communication interface that enables communication and power transfer between a luminaire and a connectable module. The communication interface comprises a driver circuit which generates an AC power supply for a primary winding, the primary winding being magnetically couplable to a secondary winding for powering the connectable module. A data sensing arrangement is adapted to detect a variation in the voltage/current of the primary winding which has been induced by the secondary winding. A control arrangement selectively couples a first and second DC input, upon which the AC power supply is based, together or to a common voltage.

Abstract: A start of packet detector comprises an input which receives start of packet information. The detector has a first stage which determines if there is a match between a respective subset of received start of packet information with a respective subset of reference start of packet information. The first stage repeats the determining for each of the subsets of received start of packet information and said respective subset of reference start of packet information. An output will provide a start of packet detected output which is dependent on the determining of the first stage.

Abstract: The invention relates to a peripheral device for communicating with a host and for controlling a controlled device, to a system including such peripheral device and at least the controlled device and to a corresponding method including a communication and a controlling. In order to allow for a possibility for upgrading controlled devices with further functionality during their service life at low initial costs or efforts on the side of the controlled devices, it is provided for an interconnection between a portion of the system using a complex standard and another portion of the system not using such standard by means of the peripheral device having a dual purpose, as a peripheral device to the standard compliant host and as a controlling device to the controlled device. In both cases, however, power is provided to the peripheral device from either the host or from the controlled device.

Abstract: A receiver module (101), transceiver module for body coupled communication devices (100) and a method of waking-up a body coupled receiver of a body coupled communication device (100) are provided. The receiver module (101) of the body coupled communication device (100) comprises couplers (102) for receiving signals via a body transmission channel (160) which follows a body of a user (150). A wake-up receiver (108) and a main receiver (106) of the receiver module (101) are coupled to the couplers (102). The main receiver (106) may operate in a sleep mode and in an operational mode. The wake-up receiver (108) generates a wake-up signal (107) when signals received via the body transmission channel (160) in a predefined spectral range exceed an energy threshold level. The wake-up signal (107) is provided to a circuitry of the body coupled communication device (100) to directly or indirectly configuring the main receiver (106) in the operational mode.

Abstract: Apparatuses for controlling light modules (5) comprise first circuits (1) for detecting first control information transported via first signals and second circuits (2) for converting first control information into second control information. The second control information is transported via second signals. The first and second control information define light settings of the light modules (5) and have different representations. The first control information may be phase-cut information or first data. The second control information may be a parameter of the second signal or second data. The apparatus may further comprise a third circuit (3) for converting power from the first signals into third signals destined for power inputs (51) of the light modules (5). The second signals may be destined for control inputs (52) of the light modules (5). This way, a control of a light module (5) has been separated from powering the light module (5). Many more control options have become possible.

Abstract: Apparatuses for controlling light modules (5) comprise first circuits (1) for detecting first control information transported via first signals and second circuits (2) for converting first control information into second control information. The second control information is transported via second signals. The first and second control information define light settings of the light modules (5) and have different representations. The first control information may be phase-cut information or first data. The second control information may be a parameter of the second signal or second data. The apparatus may further comprise a third circuit (3) for converting power from the first signals into third signals destined for power inputs (51) of the light modules (5). The second signals may be destined for control inputs (52) of the light modules (5). This way, a control of a light module (5) has been separated from powering the light module (5). Many more control options have become possible.

Abstract: The present invention concerns LED drivers and is in particular directed to signal overlay for feature addition to an existing LED driver. Specifically, the invention is directed to an apparatus (200) for operating a LED driver (100), to a method of operating a LED driver, to a computer program for operating a LED driver and to a LED driver unit. The apparatus (200) is capable of overlaying an overlay signal (digital or analogue) to a control signal (164) of the LED driver (100) in dependence of external control information (256). The control signal (164) is provided to the LED driver at a control signal inlet (105). By overlaying the overlay signal, the apparatus (200) modulates the control signal (164) and provides a modulated control signal (164) to the same control signal inlet (105).

Abstract: A receiver module (101), transceiver module for body coupled communication devices (100) and a method of waking-up a body coupled receiver of a body coupled communication device (100) are provided. The receiver module (101) of the body coupled communication device (100) comprises couplers (102) for receiving signals via a body transmission channel (160) which follows a body of a user (150). A wake-up receiver (108) and a main receiver (106) of the receiver module (101) are coupled to the couplers (102). The main receiver (106) may operate in a sleep mode and in an operational mode. The wake-up receiver (108) generates a wake-up signal (107) when signals received via the body transmission channel (160) in a predefined spectral range exceed an energy threshold level. The wake-up signal (107) is provided to a circuitry of the body coupled communication device (100) to directly or indirectly configuring the main receiver (106) in the operational mode.