Abstract: The invention relates to a firmware over-the-air (FOTA) method for updating building services, in particular lighting technology installations, comprising multiple devices which are connected to a server as a mesh network, wherein the method comprises the following steps: storing a firmware update image sent by the server in a respective memory of each device, and triggering the copying of the firmware update from the memory to an internal memory of a microcontroller of each of the devices by means of a trigger command issued by the server, wherein, within a predefined time period (timeout) after the trigger command is issued, the server uses feedback from the devices to check whether each device has received the firmware update image and the trigger command, and wherein the copying does not take place until after the predefined time period has elapsed.

Abstract: The present invention relates to a synchronous flyback converter circuit (1) for operating an illuminant line (4) having at least one illuminant (5), more particularly having at least one light emitting diode, the synchronous flyback converter circuit (1) comprising: a transformer (T), having a primary winding (Np), which is electrically connected to a first switch (S1), and a secondary winding (Ns), which is electrically connected to an output (A1, A1?) of the synchronous flyback converter circuit via a second switch (S2), the illuminant line (4) being able to be connected to the output; and a control unit (2), which is designed to control the first switch (S1) and the second switch (S2).

Abstract: The invention relates to a signaling device (2) for use in a DALI system (1) with a DALI bus (B), wherein, according to the DALI standard, an upper voltage value range (DH) is established for the bus voltage of the DALI bus (B) for transmitting a high-level DALI signal via the DALI bus, and the bus voltage of the DALI bus (B) lies within the upper voltage value range (DH) in the idle state, wherein the signaling device (2) is configured for being connected to the DALI bus (B) of the DALI system (1), and wherein, in the connected state, the signaling device (2) is configured to change the bus voltage of the DALI bus to a predetermined voltage value (U2) within the upper voltage value range (DH) in the idle state. The invention also relates to a DALI device (3a, 3b, 3c) for use in a DALI system (1) with a DALI bus (B), which is configured for registering the above-mentioned signaling using the signaling device (2) according to the invention.

Abstract: A first plurality (201) of network nodes (120-123, 130-133) of a network (100) is associated with a first cryptographic keying material and the multicast IP address. A second plurality (202) of network nodes (120-123, 130-133) of the network (100) is associated with a second cryptographic keying material and the multicast IP address. The first cryptographic keying material has a different secret than the second cryptographic keying material.

Abstract: LED light source, comprising a series connection of at least two LED strings, wherein each of the at least two LED strings corresponds to a single LED or comprises at least two LEDs, wherein at least one ohmic resistive element is connected in series with a first LED string of the at least two LED strings, and at least one switching element is connected in parallel to the series connection of the at least one ohmic resistive element and the first LED string, wherein the at least one switching element is configured to bypass in its conductive state the series connection of the at least one ohmic resistive element and the first LED string.

Abstract: The invention relates to a circuit board (1), preferably for a circuit for operating a lighting means, comprising a retaining bow (2), which is arranged on a planar top side (11) of the circuit board (1) and mechanically connected to the circuit board (1); and comprising a through-bore (3), which is arranged at least partially below the retaining bow (2); wherein the through-bore (3) has at least one taper (31) and wherein a housing (5) for protecting the circuit board (1) can be mechanically fastened by means of the retaining bow (2) and the taper (31). The retaining bow (2) is arranged on the circuit board (1) by means of a solder joint (32). The invention further relates to a system for a circuit for operating a lighting means and to a method for fastening a housing (5) to a circuit board (1).

Abstract: The invention relates to a system for controlling building systems engineering on the basis of measured values detected by sensors. The system comprises a mobile device (3), at least one stationary sensor unit (14.1, 14.2, 14.3) and a data processing unit (16). The mobile device (3), the at least one sensor unit (14.1, 14.2, 14.3) and the data processing unit (16) are connected by at least one communications network. The system is distinguished in that the mobile device (3) has at least one sensor (5) for detecting a physical variable, and the data processing unit (16) generates a control signal for the building engineering system on the basis of a combination of information about the physically detected variable of the sensor of the mobile device (3) and of the stationary sensor unit (14.1, 14.2, 14.3).

Abstract: The invention relates to a bus node, which can be connected to a building services bus, which bus node comprises a supply unit and a control unit, wherein the supply unit is designed to output a measurement current onto the building services bus, and wherein the control unit is designed to sense and evaluate a bus current on the building services bus and, on the basis of the evaluation, to determine whether an operating current is output onto the building services bus by the supply unit.

Abstract: The invention relates to an electronic database (101) having entries for a plurality of operating devices (151) and a plurality of lamps (152), which electronic database is searched on the basis of a query (115). The query (115) indicates a light characteristic. On the basis of the search of the electronic database (101), a combination of a selected operating device and a selected lamp is determined and an electrical operating point of the selected operating device is determined. Then, an output (116) is provided, which indicates the selected operating device, the selected lamp and the determined operating point.

Abstract: The invention is in the field of emergency lighting devices and power supply of emergency lighting devices. A LED converter for an emergency lighting unit comprises a LED driver for supplying a current to a LED lighting device, an energy storage interface for connecting an energy storage device, a charging circuit for charging the energy storage, and a control circuit. The energy storage interface is configured to connect at least two different types of energy storage devices. The charging circuit sets at least one energy storage management parameter according to the type of energy storage device connected by the energy storage interface. The control circuit determines the type of energy storage device connected by the energy storage interface and controls the charging circuit to set the energy storage management parameter according to the determined type of energy storage device.

Abstract: An emergency converter according to the invention is used in lighting applications for operation from an energy storage device in case of mains failure. The converter device comprises a charger circuit configured to charge the energy storage device and a microcontroller circuit configured to control the charger circuit. The driver circuit is preferably implemented in a coupled inductor boost circuit topology. The microcontroller circuit is further configured to control the switch based on a zero crossing of a measured inductor current.

Abstract: The invention relates to a motion sensor device (10), comprising: a PIR sensor (11) having a plurality of sensor elements (12) arranged adjacent to each other, the active sensor surfaces of which form a detection region (13) of the PIR sensor (11); an optical unit (15), which is designed to image a detection region (16) of the PIR sensor (11), which comprises detection zones (17), on the detection region (13) of the PIR sensor (11); wherein the detection zones (17) in the detection region (16) of the PIR sensor (11) have a spatially periodic arrangement having direction-dependent periodicity. The invention also relates to a lighting system (20) having the motion sensor device and a method (30) for operating the motion sensor device.

Abstract: The invention relates to a communication module for connecting a lighting bus system (1) to a network (3) based on an internet protocol, wherein each component (2a . . . 2f) coupled to the bus system (1) is assigned a unique bus address, the communication module (4) is assigned a plurality of network addresses, at least one of the plurality of network addresses contains the bus address of a component (2a . . . 2f) and the communication module (4) is designed to receive data transmitted to the at least one network address from the network (3), to extract the bus address of the component (2a . . . 2f) from the network address, to determine data to be transmitted to the component (2a . . . 2f) by using the extracted bus address on the basis of the received data, and to transmit the determined data to the component (2a . . . 2f) having the extracted bus address via the bus system (1), or to provide the data generated autonomously by a component (2a . . .

Abstract: The invention relates to the field of commissioning of infrastructure elements of a lighting network for connecting wireless enabled lighting devices in a secure manner to a wireless network using key information acquired via a cloud based service. A commissioning device comprises a first communication means for communicating with a server unit. The commissioning device obtains identification information from the infrastructure element to be commissioned and transmits the obtained identification information to a server unit which stores key information associated with identification information of the infrastructure element. The server unit retrieves the key information associated with the transmitted identification information and transmits the retrieved key information to the commissioning device. The commissioning device uses the received key information for establishing a secure communication channel to the infrastructure element.

Abstract: The commissioning of a smart building technology system is implemented with the use of a binding table in a relational database to bind one or more sections of virtual devices representing, e.g., lights, sensors, actuators and room controls, to the network addresses of physical devices. Plans for redundant sections in large building are created in terms of virtual devices and logical functions (such as programmed groups of devices, scenes and recipes) without direct binding to physical devices. Software creates reference copies of the plan for redundant sections the building, through use of a binding table, and attaches the reference copy to the location of the respective section on a master layout of the building. The plan modeled with virtual devices can be edited or reprogrammed across all reference copies, even after binding to physical devices and commissioning is completed.

Abstract: The aim of the invention, as demonstrated in various examples, is to control a current flow to an electrical load, e.g. a light emitting diode, in a particularly precise manner. For this purpose, control gear (90) comprising a DC-DC switching controller (100) is used in various examples.

Abstract: An emergency unit (1) is provided, comprising input terminals (I1, I2) for supplying the emergency unit (1) with AC power, a battery charging unit (40) designed for charging a battery unit (30) of the emergency unit (1) by using the AC power, a DC/DC converter (10), supplied by the battery unit (30) and designed to provide DC power to DC power output terminals (O1, O2) designed for supplying power to emergency lighting means (EL), a control unit (20) designed for being supplied with a signal indicating the state of the AC power and for outputting commands to the battery charging unit (40) and to the DC/DC converter (10). The control unit (20) can assume a state (S6) in which it causes the DC/DC converter (10) to provide DC power based on the battery unit and at the same time start the operation of the battery charging unit (40).

Abstract: A flyback converter (10) for operating one or more lighting means, wherein the flyback converter (10) has a transformer and the transformer is arranged between a primary side of the flyback converter (10) and a secondary side of the flyback converter (10), wherein the flyback converter (10) is configured, and wherein the flyback converter (10) has a current detection circuit (107) that is configured to detect the current flowing through the secondary side of the flyback converter (10). The current detection circuit (107) can have a current detection transformer (108, 109). The flyback converter (10) can be configured such that the current flowing through the secondary side of the flyback converter (10) flows in a negative direction at least some of the time.

Abstract: A communication module for a building technology device, especially a luminaire, is provided, wherein the communication module is configured to be connectable to an IoT-network and a communication bus, and being configured for a bi-directional communication on the IoT-network and the communication bus, wherein the communication module is configured to convert communication data between the communication bus and the IoT-network.