STEP-DOWN VOLTAGE MODULE FOR EMERGENCY POWER SYSTEMS

    公开(公告)号:US20240291315A1

    公开(公告)日:2024-08-29

    申请号:US18571929

    申请日:2022-06-13

    IPC分类号: H02J9/06

    CPC分类号: H02J9/065

    摘要: A step-down module (10) for an emergency power system (100) is disclosed. The step-down module (10) includes a step-down circuit (11) to which an AC power source (40) having an input voltage higher than 277 VAC can be connected, the step-down circuit arranged to convert the input voltage to an output voltage in the range of 120 to 277 VAC. A sensing module 14 is arranged to detect a state of an emergency driver relay (21) from an emergency lighting fixture (20). When the emergency driver relay (21) is closed, a normal operation mode is active and when the emergency driver relay (21) is open, an emergency operation mode is active. The normal operation mode is when the AC power source (40) is suppling AC power to the step-down circuit (11) and the emergency operation mode is when the AC power source (40) is not suppling AC power. A control relay (13) arranged to connect or disconnect the AC power source (40) from the emergency lighting fixture (20. A controller (12) is arranged to control the control relay depending on the state of emergency driver relay detected by the sensing module. In the normal operation mode, the control relay connects the AC power source (40) to the emergency lighting fixture (20) and in the emergency operation mode, the control relay disconnects the AC power source (40) from the emergency lighting fixture (20). The emergency lighting fixture (20) may be an LED-based lighting device.

    Inspection system for inspecting a lighting device during an assembly process of the lighting device and a method thereof

    公开(公告)号:US12072301B2

    公开(公告)日:2024-08-27

    申请号:US17800325

    申请日:2021-02-15

    IPC分类号: G01N21/956

    CPC分类号: G01N21/956

    摘要: An inspection system (100) for inspecting a lighting device (150) during an assembly process of the lighting device; wherein the lighting device comprises a base plate (153) and a plurality of components (155) mounted on the base plate; wherein the inspection system comprises: a light source (120) arranged for illuminating the lighting device according to a first light output spectrum for providing a luminance contrast between the base plate and the plurality of components; an imaging unit/camera (130) arranged for capturing a first image of the illuminated lighting device; a controller (110) comprising a processing unit for determining a luminance contrast measure of the captured first image; wherein the processing unit is further arranged for, when the luminance contrast measure of the captured first image exceeds a threshold value, adapting the first light output spectrum, and wherein the imaging unit is further arranged for capturing a second image of the lighting device illuminated according to the adapted first light output spectrum; and wherein the controller further comprises: a comparing unit arranged for comparing the second image with a reference image; a determination unit arranged for determining a defect in the base plate and/or in the plurality of components based on the comparison.

    AN APPARATUS FOR CONFIGURING RADIOFREQUENCY SENSING

    公开(公告)号:US20240280683A1

    公开(公告)日:2024-08-22

    申请号:US18577740

    申请日:2022-07-01

    IPC分类号: G01S13/56 G01S7/00 G01S13/88

    摘要: The invention refers to an apparatus (130) for configuring a radiofrequency sensing of a radiofrequency sensing network (100) comprising network devices (121, 122, 123), e.g. luminaires, wherein the network is adapted to perform radiofrequency sensing in a first (101, 201 301) and second area (102, 202,. 302) separated by a physical separation (126, 330). The apparatus comprises a providing unit (131) determining a first baseline and a second baseline, wherein the first/second baseline is associated with the first/second area, respectively. The first/second baseline enable a radiofrequency sensing of events in the second area by the network devices. A configuration unit (132) is adapted to configure the radiofrequency sensing to differentiate between events originating from the areas based on the baselines. This allows the present invention to provide an apparatus that allows for a more accurate and reliable 10 radiofrequency sensing in a predefined sensing area.

    ANTENNA ARRANGEMENT
    25.
    发明公开
    ANTENNA ARRANGEMENT 审中-公开

    公开(公告)号:US20240275063A1

    公开(公告)日:2024-08-15

    申请号:US18564701

    申请日:2022-05-19

    摘要: An antenna arrangement is disclosed. The antenna arrangement comprises: an elongated pipe shaped electrically conductive body; a plurality of slots formed in the conductive body and arranged to act as an antenna array comprising a plurality of antenna elements, each antenna element comprising a slot, the plurality of antenna elements of the antenna array overall distributed along a longitudinal direction of the conductive body, and a feeding structure disposed within the conductive body, the feeding structure comprising a plurality of feeding elements each arranged to excite an antenna element of the antenna array.

    SYSTEM AND METHOD FOR MONITORING POLLINATION OF PLANTS

    公开(公告)号:US20240268278A1

    公开(公告)日:2024-08-15

    申请号:US18567938

    申请日:2022-06-07

    IPC分类号: A01G7/00

    CPC分类号: A01G7/00

    摘要: A system is disclosed for monitoring pollination of plants carrying one or more flowers. The system comprises a plurality of microphones for monitoring an area comprising said one or more flowers. Each microphone out of the plurality of microphones is configured to monitor a sub-area of the monitored area. Further, each microphone is suitable for recording sounds produced by a pollinator, such as a bumblebee, that is present in the microphone's sub-area and is configured to output one or more signals indicative of recorded sounds. The system further comprises a data processing system that is configured to receive, from each of the plurality of microphones, said one or more signals indicative of recorded sounds. The data processing system is further configured to determine, based on the signals received from the plurality of microphones, a value of a pollination quality parameter indicative of how well one or more flowers in the monitored area are pollinated.

    Selecting a method for extracting a color for a light effect from video content

    公开(公告)号:US12062220B2

    公开(公告)日:2024-08-13

    申请号:US17289852

    申请日:2019-10-28

    摘要: A method comprises obtaining (201) media content and information about the media content and selecting (203) a color extraction method from multiple color extraction methods based on the obtained information. The media content comprises video content and the color extraction methods differ from each other in that they extract different colors from the same pixels. The method further comprises extracting (205) a color from one or more frames of the video content by applying the selected color extraction method and determining (207) one or more light effects to be rendered on one more light sources while the one or more frames are being rendered. The one or more light effects are determined based on the extracted color. The method also comprises storing (209) a light script specifying the one or more light effects and/or controlling (211) the one or more light sources to render the one or more light effects.

    Disinfection device
    29.
    外观设计

    公开(公告)号:USD1038551S1

    公开(公告)日:2024-08-06

    申请号:US29759312

    申请日:2020-11-20

    摘要: FIG. 1 is a perspective of a disinfection device showing our new design;
    FIG. 2 is another perspective view thereof;
    FIG. 3 is a front elevational view thereof;
    FIG. 4 is a rear elevational view thereof;
    FIG. 5 is a right side elevational view thereof;
    FIG. 6 is a left side elevational view thereof;
    FIG. 7 is a top plan view thereof; and,
    FIG. 8 is a bottom plan view thereof.
    The broken lines shown in the figures are for the purpose of illustration portions of the disinfection device and form no part of the claimed design.

    A SECTORIZATIION TECHNIQUE FOR HIGH-SPEED OPTICAL WIRELESS COMMUNICATION

    公开(公告)号:US20240259097A1

    公开(公告)日:2024-08-01

    申请号:US18561005

    申请日:2022-05-16

    IPC分类号: H04B10/112

    CPC分类号: H04B10/1123

    摘要: An apparatus (100) for use in an optical wireless communication system comprises: a wide beam light source (L5): two or more narrow beam light sources (L1-L4) configured to emit in a different direction, wherein a combined field-of-view. FoV, of the narrow beam light sources (L1-L4) is covered by a FoV of the wide beam light source (L5); a plurality of switches (S1-S5) configured to turn on or off a corresponding one out of the 5 light sources (L1-L5) individually; a receiver (RX) configured to receive one or more feedback signals from a remote device (200); and a controller (CTR) configured to control the plurality of switches (S1-S5) via a control signal; update the control signal based on the one or more feedback signals received by the receiver (RX): carry out a beam selection procedure by sending test signals via the wide beam light source (L5) and one or more 10 narrow beam light sources (L1-L4) to the remote device (200) to enable a selection of one out of the narrow beam light sources (L1-L4) for establishing data communication with the remote device (200).