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公开(公告)号：US11775039B2
公开(公告)日：2023-10-03
申请号：US15752521
申请日：2016-08-05
CPC分类号： G06F1/263 , H04L12/10 , H04L12/40045 , G06F1/266
摘要： The invention relates to a power providing device (2) for providing power to a plurality of power receiving devices (31), a power distribution system including such power providing device (2), a method for providing power to a plurality of power receiving devices (31) and a corresponding computer program. During standby the power providing device (2) is beneficially supplied with power coming from a power source (1) dedicated or adjusted for the low energy consumption, e.g. a uplink port (23) or a shared power bus. The current drawn from such power source (1) (or the power provided to the downlink power receiving devices (31)) is measured and, for example, the derivative is used in order detecting a current increase just when it starts. This information may be used such the main power supply (29) gets started in order to be available for more power demand than available through the hierarchical powering coming from the standby power source (1).
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公开(公告)号：US20210307147A1
公开(公告)日：2021-09-30
申请号：US16319583
申请日：2017-07-13
发明人： George Bradley MILLS
IPC分类号： H05B47/185 , H04B3/54 , H05B47/165
摘要： A system (and system controller) has powering of, and communication with, a set of fixtures using an AC cable having a power line (e.g. a mains live wire), a reference line (e.g. a mains neutral wire) and a data line. Fixtures are at different positions along the cable, each powered by the local voltage difference between the power line and the reference line. A system controller provides a data signal over the data line, wherein the data signal for a fixture is defined by the local voltage difference between the data signal on the data line and the reference line (or power line). In order to compensate for voltage drops, a compensation circuit adds a voltage offset waveform to the data signal which is dependent on the overall set of positions of the fixtures. This enables an increased number of fixtures and/or reach of the fixtures connected to the system controller.
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公开(公告)号：US20210289321A1
公开(公告)日：2021-09-16
申请号：US16321636
申请日：2017-07-11
IPC分类号： H04W4/02
摘要： It is an object of the invention to provide an improved device for location based services. Thereto, the invention provides a device (100) for location based services comprising: a sensor for sensing an orientation (10, 20) of the device (100); a processor for receiving the orientation (10, 20) of the device (100) and for running a first application (111) related to the group of mapping, positioning and navigation and a second application (112) other than the first application (111); a display (600) for displaying output of applications; wherein the processor is arranged for running the first application (111) when the device (100) is in a first orientation (10) and the second application (112) when the device (100) is in a second orientation (20); and wherein, the device (100) is in the first orientation (10) if the display (600) is within 30 degrees of a plane perpendicular to gravity, the device (100) is in the second orientation (20) if the display (600) is within 30 degrees of a plane parallel to gravity.
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公开(公告)号：US20210219400A1
公开(公告)日：2021-07-15
申请号：US16081739
申请日：2017-03-23
发明人： Bernd ACKERMANN , Christian HATTRUP
摘要： The invention provides a conversion circuit for converting first signals coming from a fluorescent ballast into second signals for feeding a light circuit via a rectifier circuit, the light circuit comprising at least one light emitting diode. The conversion circuit has an inductor in a parallel branch between the two-terminal input or the two-terminal output. This enables the ballast output power be reduced without significant increase in losses. The conversion circuit is for enabling retrofit of LEDs to fluorescent ballasts.
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公开(公告)号：US10985930B2
公开(公告)日：2021-04-20
申请号：US16087148
申请日：2017-03-16
IPC分类号： H04L12/10 , G06F1/3203 , G06F1/3209 , H04L12/24 , G01R21/133
摘要： The invention relates to a PoE system, which comprises a powered device (2) and a power sourcing device (1). The power sourcing device comprises one or more ports (12) and the powered device is connectable to a port of the power sourcing device by an electrical conductor (13) for conveying the sourced power along with data. The powered device comprises an interface for providing a measure of its energy consumption within the PoE system and, if it does not have the ability to measure its energy consumption, is adapted to negotiate with the power sourcing device whether the power sourcing device has the ability to measure the energy consumption of the powered device and to provide the measured energy consumption to the powered device for provision via the interface. This can make the PoE system more flexible and allow for a single “point of contact” for providing energy usage feedback.
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公开(公告)号：US20210022226A1
公开(公告)日：2021-01-21
申请号：US16074172
申请日：2017-01-30
IPC分类号： H05B47/11 , G01J5/12 , G01J5/28 , H05B47/115 , E06B9/32
摘要： A method and corresponding system is disclosed in which the overall illuminance of an environment is analyzed to in order to detect and quantify the daylight component of the illuminance. The invention utilizes a combination of visual and non-visual sensors and a signal processing algorithm that filters and analyzes the sensor data.
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公开(公告)号：US10798878B2
公开(公告)日：2020-10-13
申请号：US14425384
申请日：2013-08-28
发明人： Céline Catherine Sarah Nicole , Hangfeng Ji , Cristina Tanase , Gabriel-Eugen Onac , Marc Andre Peters
摘要： The invention provides a lighting system comprising (i) a lighting device comprising a plurality of light sources for application in a horticulture production facility, wherein the light sources are configured to illuminate with horticulture light crops, wherein the lighting system further comprises (ii) a control unit configured to control the light intensity of local light at a location, wherein the local light is the sum of the horticulture light and light at the location originating from an optional other light source, and wherein the control unit is configured to prevent a change in the photosynthetic photon flux density (PPFD) of the local light at the location of on average more than 50 μmol/sec/m2 over a predetermined period of time selected from the range of equal to or smaller than 5 minutes by controlling the contribution of the horticulture light to the local light.
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公开(公告)号：US10750598B2
公开(公告)日：2020-08-18
申请号：US15753833
申请日：2016-08-09
IPC分类号： H05B47/175 , H05B47/105
摘要： Lighting systems and methods for lighting fixture location mapping, for example, using a combination of photosensing readings and/or other sensors to identify a correct mapping. These systems and methods may be used to resolve ambiguities that could not be resolved using other processes, such an auto-commissioning method that identifies more than one possible mapping of the lighting fixtures to spatial locations. Such ambiguities are typically found in floor plans that are symmetrical. The systems and methods of the present invention record and utilize environmental profiles, such as ambient lighting levels and occupancy patterns, to match lighting fixtures to their respective spatial locations and provide resolution to ambiguities in an auto-commissioning method that identifies more than one possible mapping of the lighting fixtures to spatial locations.
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公开(公告)号：US20200037409A1
公开(公告)日：2020-01-30
申请号：US15735697
申请日：2016-06-06
发明人： MARTINUS PETRUS JOSEPH PEETERS , SHU XU , JIE FU , MALGORZATA PERZ , RÉMY CYRILLE BROERSMA , DRAGAN SEKULOVSKI , RENÉ THEODORUS WEGH
摘要： The invention provides a light emitting diode (LED) lighting system (1) comprising a string (ST) including a number of light emitting diode (LED) elements (10) functionally connected with an AC voltage source (20) configured to apply an input voltage (Vi) to said string (ST), wherein the string (ST) comprises a plurality of segments (S1, S2, S3, . . . ), with each segment (S1, S2, S3, . . . ) comprising at least one or more of said light emitting diode (LED) elements (10), wherein the light emitting diode (LED) lighting system (1) is configured to connect a first segment (S1) in the string (ST) between and driven by the input voltage (Vi) when said input voltage (Vi) is bigger than a first threshold, and to connect the first segment (S1) and a second segment (S2) in the string between and driven by the input voltage (Vi) when said input voltage (Vi) is bigger than a second threshold bigger than said first threshold, wherein each LED element (10) comprises a light emitting diode (100) configured to generate blue LED radiation (101), wherein said first segment (S1) comprises a second photoluminescent material comprising LED element (210), wherein the second photoluminescent material comprising LED element (210) comprises (a) light emitting diode (100) and (b) a second photoluminescent material (230) configured to convert at least part of said LED radiation (101) into second conversion radiation (231) in the visible, and wherein said second photoluminescent material (230) only has a decay time of the second conversion radiation (231) smaller than 1 ms, and said second segment (S2) comprise first photoluminescent material comprising LED elements (110) each comprising (a) light emitting diode (100) and (b) a first photoluminescent material (130) configured to convert at least part of said LED radiation (101) into first conversion radiation (131) in the visible, and wherein said first photoluminescent material (130) only has a decay time of the first conversion radiation (131) in the range of 1-500 ms.
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公开(公告)号：US20200009279A1
公开(公告)日：2020-01-09
申请号：US16301475
申请日：2017-02-02
摘要： Methods and apparatus are provided for ultraviolet (UV) fluid purification, wherein the fluid is in a gaseous, liquid or solid form or combination thereof, comprising UV-C LED modules having improved light extraction efficiency. UV-C LED(s) are in optical communication with one or more UV-C transmissive window elements.
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