Signify Holding B.v.

Philips Lighting Holding B.v.

Hongxin Chen

Dave Alberto Tavares Cavalcanti

Kiran Srinivas Challapali

Jianfeng Wang

Hong Chen

Qing Li

Fulong Ma

Yi Qiang Yu

Michael Alex Van Hartskamp

Zhong Huang

Daniel Jozef Piotrowski

Marcin Krzysztof Szczodrak

Qin Zhao

Xianneng Peng

Martin Elixmann

Liang Jia

Dzmitry Viktorovich Aliakseyeu

Hongqiang Zhai

Dan Jiang

Marcin Gramza

Marek Zbigniew Szczerba

Talmai Brandão De Oliveira

Berent Willem Meerbeek

Hui Li

Jonathan David Mason

Sanae Chraibi

Andrew Ulrich Rutgers

John Brean Mills

Yong Yang

Yuan Shu

Neveen Shlayan

Bartel Marinus Van De Sluis

Philip Steven Newton

Lei Feng

Engel Johannes Knibbe

Yong Zeng

Xin Ge

The invention provides a light management information system for an outdoor lighting network system, having a plurality of outdoor light units each including at least one sensor type, where each of the light units communicates with at least one other light unit, at least one user input/output device in communication with at one or more of said outdoor light units, a central management system in communication with light units, said central management system sends control commands and/or information to one or more of said outdoor light units, in response to received outdoor light unit status/sensor information from one or more of said outdoor light units or received user information requests from said user input/output device, a resource server in communication with said central management system, wherein the central management system uses the light unit status/sensor information and resources from the resource server to provide information to the user input/output device and/or reconfigure one or more of the lights units.

Methods and apparatus for information management and control of outdoor lighting networks

Apparatuses () for determining statuses of load circuits () comprise terminals () for exchanging current signals with current sources (). The load circuits () comprise D loads (L-L) in series combinations coupled to the terminals (). The apparatuses () further comprise capacitance circuits () comprising E monitor capacitances (C-C) with first contacts coupled to each other and to one of the terminals () and second contacts coupled to interconnections between the loads (L-L). The apparatuses () further comprise detection circuits () for detecting voltage signals present between the first and second terminals (), and derivation circuits () for deriving the statuses of the load circuits () from the detected voltage signals. Thereto, the derivation circuits () may calculate instantaneous capacities comprising steps indicative for said statuses of the load circuits (). The capacitance circuits () do advantageously not interfere with the load circuits () in steady-states, and may further comprise F parallel capacitances (C-C) in parallel to the loads (L-L).

Status derivation of load circuit via capacitance

Methods and systems for providing enhanced augmented reality features and enhancements are disclosed such as an AR support system () using lighting units (LU) in a lighting system () to improve performance of augmented reality devices (). The lighting system () may also take advantage of features of the augmented reality devices () to improve the safety and performance of the lighting system (). The lighting units (LU) include sensors and communication capabilities that detect situations as to when the augmented device would need to be assisted by the lighting network. Finally a method to provide assistance information to the augmented reality device while optimizing energy savings is also described.

System and method for augmented reality support using a lighting system's sensor data

A device () for detecting a problem in or near a load () coupled to a cable () of a cable system comprises an analyzing part () for analyzing a waveform of a cable signal for feeding the load () and a deciding part () for in response to an analysis result deciding whether a problem in or near the load () is present or not. The load () may be coupled to the cable () via a driver (). The problem in or near the load () may result in the driver () amending a value of the waveform at or near a crest or a trough of the waveform. The analysis result may define whether the waveform has been amended by more than a threshold or not. The amending of the value of the waveform at or near the crest or the trough may comprise a positive pulse added to a crest or a negative pulse added to a trough.

Problem detection for cable-fed-loads

Commission devices () comprise first transmitters () for transmitting activation signals to load devices (-), and second transmitters () for transmitting numbers of challenge signals to activated load devices () that respond by sending back a response signal per challenge signal to the commission devices (). The commission devices () further comprise first receivers () for receiving the response signals and controllers () for determining time-intervals present between transmissions of the challenge signals and receptions of the response signals. The controllers () derive absolute or relative positions of the load devices (-) from analyzes such as statistical analyzes of the time-intervals. Load devices (-) comprise second receivers () for receiving the activation signals and third receivers () for receiving the number of challenge signals and third transmitters () for sending back the response signals to the commission devices (). The load devices (-) may further comprise loads ().

Commissioning load devices via challenge-response-timing

A device for providing power to a light arrangement () having a current conducting state and a current blocking state. The device comprises a storage circuit () with a capacitor () coupled to the light arrangement () and a resistor () located in parallel to the capacitor, a first determination circuit () for determining the state of the lighting arrangement, a second determination circuit () for, in the current blocking state, determining points of two discharging curves of the storage circuit, a derivation circuit () for deriving a condition of the storage circuit, such as life-end, from the discharging curves, a switch circuit () comprising an element (), wherein the switch circuit is configured to switch the element () in parallel to the capacitor (), whereby a first discharging curve is determined with the element being disconnected from the capacitor and a second discharging curve is determined with the element being connected to the capacitor, the capacitor discharging via both the resistor () and the element (). The element () may comprise a resistor, a capacitor or an inductor.

Light device deriving condition of storage circuit

A driver circuit comprises a mains input and a switch mode power converter for delivering an output derived from the mains input by switching using a pulse width modulation signal. The switch mode power converter comprises a pulse width controller for controlling the pulse width of the pulse width modulation signal. A monitor is used for monitoring the pulse width of the pulse width modulation signal and for detecting a surge event from the pulse width, wherein the monitor is for detecting the surge event from changes in the pulse width and/or duty cycle over time, and comprises a monitor circuit for detecting a surge event based on the pulse width and/or duty cycle reducing to correspond to a first pulse from a second pulse, remaining at the first pulse for a time period falling within a first threshold range and then returning to the second pulse, wherein the width of the first pulse is narrower than the second pulse.

Driver circuit able to monitor usage of a surge protection arrangement

A system and method for providing directional information to a user using existing infrastructure elements () is disclosed. The method comprising determining a route of infrastructure elements () between a current location and a remote location, wherein the current location is associated a first element in the route and the last element in the route being closest to the remote location, wherein each of the elements in the route are identified by at least one of: a physical identification and a data identification, and providing a visual indication, progressively, to each of the infrastructure elements in the route at a predetermined time and for a determined period, wherein the progressive display of the visual indication provides for direction control information.

Streetwise navigation system using infrastructure elements

Growing community of inventors

Shanghai, China

Hongxin Chen