Rupp, Christian

A movable test device (10) is provided for testing, especially during movement, of the synchronization of a base station (11, 15, 21, 31a, 31b, 31c, 31d, 41a, 41b) of a wireless network with reference to a reference time. The movable test device (10) may comprise a receiving unit (12) configured to measure a time of arrival for a synchronization and/or broadcast channel of the base station (11, 15), a location determination unit (13) configured to determine a measurement location of the movable test device (10), and configured to determine a base station location of the base station (11, 15) based on multilateration or based on a base station location database, a processing unit (14) connected to the receiving unit (12) and to the location determination unit (13), wherein the processing unit (14) is configured to determine a propagation time based on a distance between the base station location and the measurement location, determine a time of transmission based on the time of arrival and the propagation time, evaluate frame-timing, especially with respect to a reference time, based on the time of transmission, preferably with the aid of a model, and determine time-offset and/or drift of frame-start-times of the base station (11, 15) based on the frame-timing or based on the time of arrival, especially by solving a corresponding optimization problem.

The present invention provides a building management system (1) configured to receive wireless signals (5), optionally radio signals, transmitted by an electrical device (3) usable by a person (4), the wireless signals (5) comprising an identifier (ID) identifying the electrical device (3); recognize the electrical device (3) on the basis of the identifier (ID) in the received wireless signals (5); determine a distance (d) between a location of a building infrastructure device (2) of the building management system (i) and a location of the recognized electrical device (3) using the received wireless signals (5); determine on the basis of the determined distance (d) whether a condition for controlling the building infrastructure device (2) according to statistical control data associated with the recognized electrical device (3) is fulfilled; and control the building infrastructure device (2) according to the statistical control data in case that the condition is fulfilled.

The present invention provides a surge protection circuit for a Flyback converter, the Flyback converter having a control integrated circuit, IC, with a current-sense pin, and a switching transistor. The surge protection circuit comprises: a surge event detection component configured to detect a surge event based on a mains input voltage to the Flyback converter, and generate an output signal upon detecting the surge event; and a signal path from the surge event detection component to the current-sense pin of the control IC, wherein the output signal is adapted to emulate an overcurrent condition at the current-sense pin, thereby triggering the control IC to halt switching of the switching transistor during the surge event.

The invention is related to a system and a first luminaire (1) comprising a communication module (13) for wireless communication that is configured to communicate with at least one other luminaire (2); wherein each of the luminaires (1, 2) is associated with a segment and information on the association with the respective segment is set in each luminaire (1, 2), and a determination module (11, 21) that is configured to determine a distance for each of the at least one other luminaire (2) relative to the luminaire (1) based on the communication, and identify one of the at least one other luminaire (2) based on control information identifying this luminaire (2) and received from this luminaire (2), and determine the segment with which the identified luminaire (2) is associated based on segment information included in the control information, and determine whether the determined segment is the same as the segment associated with the luminaire (1), and determine whether a triggering condition is fulfilled based on the determined distance between the luminaire (1) and the identified luminaire (2) and the result of the determination whether the determined segment is the same as the luminaire's (1) segment; and a control module (11) that is configured to change a state of at least one light source (14) of the luminaire (1) in case the triggering condition is fulfilled. Moreover the invention is related to a second luminaire (2), wherein the luminaire (2) is associated with a segment and information on the association with the respective segment is set in the luminaire (2), the luminaire (2) further comprises a detection module (27) that is configured to detect presence of a person; and the communication module (23) for wireless communication that is further configured to communicate with at least one other luminaire (1), and, when presence of a person is detected by the detection module (27), to communicate control information identifying the luminaire (2), to at least one other luminaire (1), wherein the control information includes segment information, based on which a segment of the luminaire (2) is determined.

The present invention provides a flyback power converter, the flyback power converter comprises: a transformer having a primary winding connected to an input supply and a secondary winding for supplying power to a load, a first switch arranged in series with the primary winding and configured to conduct current through the primary winding during an on-time and interrupt current flow during an off-time, an output circuit coupled to the secondary winding for powering the load; and an auxiliary circuit configured to be active during an off-time of the first switch. In a first phase of the off-time of the first switch, the auxiliary circuit is configured to absorb energy from the transformer; and in a second phase of the off-time of the first switch, the auxiliary circuit is configured to deliver at least part of the absorbed energy to the output circuit.

The present disclosure relates to a quantum sensor device (10), comprising a portable probe (11); and a quantum sensor (12) comprising a sensing volume which is configured to interact with an electric, a magnetic and/or an electromagnetic field to be analyzed; wherein the quantum sensor (12) is arranged in the portable probe (11). The quantum sensor device (10) further comprises a light source (17) configured to irradiate the sensing volume with a light beam, wherein the sensing volume is optically excited by the light beam.

The present disclosure relates to a quantum sensor device (10), comprising at least one sensing element (11) which is formed from non-conducting materials; wherein the sensing element (11) comprises a powder of a solid material, wherein the powder comprises particles with at least a fraction of said particles comprising defects. The quantum sensing device (10) further comprises a light source (12) configured to irradiate the sensing element (11) with a light beam, wherein the sensing element (11) is optically excited by the light beam; and an optical detector (13) configured to detect an optical response of the sensing element (11); wherein the quantum sensing device (10) is configured to determine a parameter of a magnetic and/or an electromagnetic field to be analyzed based on said optical response.

The present invention provides a driver (10) configured to drive radiation means (20), wherein the radiation means (20) are configured to radiate at least one of visible light, ultraviolet radiation and infrared radiation. Optionally, the radiation means are one or more light emitting diodes (LEDs). The driver (10) comprises a control unit (1) configured to control an electrical supply by the driver (10) to the radiation means (20) when the radiation means (20) are electrically connected with the driver (10). The driver (10) comprises a sensor unit (2) configured to detect at least one of visible light, ultraviolet radiation and infrared radiation. The control unit (1) is configured to wirelessly receive via the sensor unit (2) DALI signals. The control unit (1) is configured to wirelessly transmit DALI signals by controlling the electrical supply of the radiation means (20) by the driver (10) accordingly.

The present invention provides a lighting system (100). The lighting system (100) comprises an electrical component (1) with an internal temperature sensor (2) for obtaining an internal temperature of the electrical component (1) resulting from an operation of the electrical component (1) in an on-state of the electrical component (1), The lighting system (100) comprises a data processing unit (3). The data processing unit (3) is configured to determine, using a temperature measured by the temperature sensor (2) of the electrical component (1), an ambient temperature of an area in which the lighting system (100) is installed. The present invention further provides a method for determining an ambient temperature of an electrical component of a lighting system.

A device (10) for radar pulse analysis with respect to a radar signal is provided. Said device (10) comprises a spectrogram capturing unit (11) configured to capture a spectrogram with respect to the radar signal, an analyzing unit (12) configured to identify at least one radar pulse in the spectrogram at least one certain point in time and to analyze respective characteristics of the at least one correspondingly identified radar pulse as radar pulse information, and a display unit (13) configured to display the spectrogram and/or the radar pulse information and/or to superimpose said radar pulse information in the spectrogram, especially such that with respect to the at least one correspondingly identified radar pulse, the radar pulse information is illustrated in the spectrogram in the at least one certain point in time.