Abstract: The invention relates to a DC-power supply device (400) for supplying operational DC-power to one or more DC-powered devices that have respective DC-power requirements, that comprises a power interface (402) for providing, via a single twisted-pair wired bus (401), DC output power, a DC-power-supply network communication unit (404) configured to receive DC-power requirement information indicative of a DC-voltage requirement and a DC-current requirement for operation of the respective connected DC-powered devices, and a DC-power-supply control unit (406) configured to drive, in an initialization supply mode, delivery of initialization DC-output power amount, that is suitable for transmission by the DC-powered devices of respective DC-power requirement information, to determine, using the DC-power requirement information and a power-determination rule, and provide an operational DC output power for powering operation of at least one the DC-powered devices in its regular operation mode, thus enabling a powering

Abstract: An electronic building automation system, comprising one or more electronic building automation devices, comprising a beacon receiver arranged to receive localizing beacon signals transmitted from multiple beacons, a processor circuit configured to generate a service request comprising the beacon identifiers stored in the beacon identifier memory, the control computer arranged to generate a servicing message comprising data localizing the building automation device, said data being obtained from the beacon identifiers in the received service request.

Abstract: The invention relates to powering one or more devices, in particular in the context of Power-over-Ethernet (PoE). In an embodiment of the invention, it is proposed to equip each node (11) with a PD interface (22) that can signal multiples of the standard defined unity load (25 k? with tolerances) during the detection process and increase the load during a sequence of detection attempts. In that way, several nodes (11) can share one PSE outlet and determine the number of neighboring loads (11). At the same time, each node (11) will offer full functionality during “normal” stand-alone wiring. This powering concept can be combined with full or limited data communication capabilities.

Abstract: The present invention relates to a functional device (10) powered by a constant current driver (12). The device (10) comprises constant current driver (12), electrical energy storage unit (14), functional unit (16), and control unit (18). The device (10) is controlled by the control unit (18) such that the constant current driver (12) provides a constant current to the functional unit (16) and the storage unit (14) in dependence of a pulse width modulated voltage signal. Current is provided to the storage unit (14) for charging the storage unit (14) during at least part of off periods of the pulse width modulated voltage signal. During on periods of the pulse width modulated voltage signal, current is provided to the functional unit (16) and no current is provided to the storage unit (14). This allows providing the device with a constant current driver with less idle periods and lower current supply.

Abstract: An electronic verification system is provided, comprising: (I) multiple electronic verification devices (120), comprising: —a beacon receiver (124) arranged to receive localizing beacon signals transmitted from multiple beacons (110) installed in the vicinity of the multiple verification devices, the verification device transmits the beacon message to an external beacon verification computer, and (II) the beacon verification computer (130) configured to analyze the multiple beacon messages to determine if a localization system comprising the multiple beacons is functioning correctly.

Abstract: A beacon is provided comprising a processor circuit configured to, in dependency on an occupancy signal, switch the radio circuit mode to active mode and periodically transmit the localizing beacon signal through the radio circuit, or switch the radio circuit mode to reduced-energy mode and reduce transmitting of the localizing beacon signal.

Abstract: An electronic building automation system, comprising one or more electronic building automation devices, comprising a beacon receiver arranged to receive localizing beacon signals transmitted from multiple beacons, a processor circuit configured to generate a service request comprising the beacon identifiers stored in the beacon identifier memory, the control computer arranged to generate a servicing message comprising data localizing the building automation device, said data being obtained from the beacon identifiers in the received service request.

Abstract: The invention relates to a lighting device (200), which comprises a power input (202) unit for reception of primary operating power from an external primary power supply, a lighting control unit (204) configured to control a lighting function of the lighting device, a secondary power supply unit (206) for storing operating energy and providing secondary operating power in absence of reception of the primary operating power, a wireless-transceiver unit (208), which is configured, in performing a pre-installation connectivity test routine under supply of only the secondary operating power, to generate and transmit, upon detecting reception of a trigger input signal (210), a first wireless test signal (212), to monitor for reception of a second wireless test signal (214) from an external wireless-transceiver unit; and to determine whether or not the received second wireless test signal fulfills predetermined test-signal criteria and to provide an output signal indicative thereof.

Abstract: A DC-powered device controller (101), comprising a DC-power unit (102) configured to be electrically connected via a wired power line (105) to an external DC-power supply device (104), a control unit (112) connected with the DC-power unit and configured to receive from a DC-voltage monitoring unit (108) response signals indicative of a current voltage amount of the DC-power and to receive, from a mark-event timer unit (110), an extended-mark-time signal when a measured mark-event time exceeds a predetermined mark-event duration threshold, and to enable delivery of the currently received DC-power to an external electrical load unit (106) in event of either one of a) detecting that the current response signal is indicative of the currently received voltage amount falling into an operating voltage interval, and b) detecting that the extended-mark-time signal has been received.

Abstract: The present invention relates to a Power over Ethernet system (100) which supports additional optical communication via optical fibres. The powered devices (d1, d2, d3) may comprise circuitry to process optical signals, in particular triggering activation of the powered device (d1, d2, d3) after being in a low power state. The power supplying devices (s1-s6) may relay optical signals via direct optical paths. Optical paths in the network may improve timing accuracy of applications. The overall power consumption of the system may be improved in particular during low activity situations in which the system is primarily used for data communication. The additional optical communication paths may provide redundant paths and thus may increase the network's robustness.

Abstract: Power management (203) for controlling a delivery of a DC-power to a device (204) operable in an accepting operational state or a non-accepting operational state with respect to receiving the DC-power comprises: receiving DC input power; providing an indication that the DC-power supply device (202) operates in a powered-device detection mode and not in an powered-device operation mode; connecting, when the DC-power supply device (202) is in the powered-device detection mode, the power to an energy storage unit (212); storing electrical energy currently received; determining, whether the power-acceptance criterion is fulfilled and, in case it is fulfilled, providing an instruction to operate in the accepting operational state; connecting the energy storage unit (212) and a power interface unit (206) when the external DC-power supply device (202) is currently operating in the powered-device operation mode.

Abstract: The present invention relates to an energy management device (40) and a method of operating the same. The energy management device (40) comprising a buffer controller (41) and an energy buffer unit (45) wherein the buffer controller is configured to connect the energy buffer unit (45) to operate a load device upon detecting that the load device is in an accepting operational state and the voltage provided by a power supply device is between the first and second threshold, during a power negotiation period between the power supply device (10) and the load device (20).

Abstract: The invention relates an electrical device for providing an output depending on an electrical input. The electrical device (1) is adapted to provide a constant output, if the electrical input is in a first electrical input range, and a dependent output, if the electrical input is in a second electrical input range, wherein the dependent output depends on the electrical input. The output can therefore remain constant, even if the electrical input, which is preferentially a DC grid voltage, fluctuates within the first electrical input range. Moreover, in the second electrical input range the output can be controlled by just controlling the electrical input like the DC grid voltage, without necessarily requiring an additional control construction of the electrical device. A resistance against fluctuations of the electrical input and a controllability of the output can therefore be realized in a relatively simple way.

Abstract: The present invention provides a support system for supporting the commissioning of a networked power distribution system (1). The networked power distribution system comprises at least one power supply (2) with one or more power connectors (12, 12a) for supplying power to the one or more power connectors and a data communication interface for exchanging communication data. The support system (6) comprises one or more load device detectors (7) for detecting the connecting and/or disconnecting of a load device (3a) to/from a power connector (12a), and a commissioning tool (8) for performing steps of commissioning the networked power distribution system with regard to the load device. The commissioning tool is adapted to automatically perform at least some of the commissioning steps in response to the detection of the connecting and/or disconnecting of the load device. This can allow for a relatively easy commissioning of the networked power distribution system.

Abstract: The invention relates to a cable (12) and a male connector (10, 20) attachable to the cable (12) for transmission of power and data for use in power focused applications, in particular lighting applications. The male connector (10, 20) comprises a contact for power transmission (P), a contact for data communication (D) and optionally a contact for configuration signaling (C), wherein a conversion circuit (11, 21) is configured to translate the configuration signaling (C) to be transmitted via a single twisted pair of signaling wire together with the power transmission (P), and/or the data communication (D). Providing conversion circuitry within the connector allows to combine two or more signals received via respective connectors of the male connector and generate a combined signal to be transmitted over a single pair of twisted signal wire, the connector allows the usage of a cable with much higher flexibility.

Abstract: A power droop handling device (400) for controlling DC electrical power delivery from an external power sourcing equipment (PSE, 402) to an external electrical load device (404) in response to the PSE receiving a predetermined maintain-power-signature pulse from the load device, wherein the power droop handling device comprises a droop sensor unit (406) configured to receive power-delivery information regarding DC electrical power delivery from the PSE to the load device and to provide a droop warning signal indicative of a power-droop condition, and a control unit (408) configured to output, in response to the droop warning signal, a maintain-operation signal to the PSE instructing the PSE to maintain the power delivery to the electrical load device for a predetermined time span, regardless of whether or not the maintain-power-signature pulse is detected during this time span.

Abstract: The invention relates to a computer-controlled lighting system which comprises an interface for defining a work surface within the lighting system and a desired illumination of the work surface, at least one luminaire for illuminating the work surface and a processing unit for automatically computing configuration parameters which allow configuring the at least one luminaire such that the desired illumination of the work surface is achievable.

Abstract: A retrofit Light Emitting Diode, LED, lighting device for connection to an electronic ballast, wherein said retrofit LED lighting device comprising an LED array for emitting light, an alternating current, AC, LED driver arranged for receiving an AC supply voltage or an AC supply current, from said electronic ballast and for driving said LED array based on said received AC supply voltage or said AC supply current, at least one switch, wherein in a closed position of said at least one switch, said retrofit LED lighting device provides a closed loop current circuit for an electronic ballast connected to said retrofit LED lighting device and in an open position of said at least one switch, said retrofit LED lighting device provides an open loop current circuit for an electronic ballast connected to said retrofit LED lighting device thereby simulating an absence of said LED lighting device to said electronic ballast, an auxiliary power supply and a stand-alone external trigger circuit, connected to said auxiliary

Abstract: An electronic building automation system, comprising: (I) one or more electronic building automation devices, comprising a processor circuit configured to monitor the building automation device, determine a need for servicing of the building automation device, and (II) a servicing device for locating a building automation device in need of servicing, wherein one of a building automation device and the servicing device comprises: a servicing beacon, the servicing beacon is arranged to transmit a localizing beacon signal, and wherein the other of the building automation device and the servicing device comprises: a beacon receiver arranged to receive a localizing beacon signal transmitted from a servicing beacon, the building automation device and servicing device being arranged for the building automation device to be locatable when in need of servicing.

Abstract: A DC-powered device (200) configured to receive DC power from an external power sourcing equipment (202) and to exchange operational data with the power sourcing equipment, the DC-powered device comprising an interface unit (206) comprising at least one connection unit (208) configured to receive the DC power from the power sourcing equipment and to exchange operational data with the power sourcing equipment, a data processing unit (214) connected to the interface unit and configured to compare the exchanged operational data with prestored allowed operational template data and to generate and store, in a storage unit (216), log data pertaining to unallowed operational data, the unallowed operational data being any exchanged operational data that does not correspond to the prestored allowed operational template data, and an operational unit (218), configured to execute operational instructions pertaining to that exchanged operational data corresponding to the prestored allowed operational template data.