Signify Holding B.v.

Koninklijke Philips Corporation N.v.

Philips Lighting Holding B.v.

Xiangyu Wang

Armand Michel Marie Lelkens

Emmanuel David Lucas Michael Frimout

Ashish Vijay Pandharipande

Hongming Yang

Octavio Alejandro Santana Arnaiz

Maurice Herman Johan Draaijer

Mark Henricus Verberkt

Stephanus Joseph Johannes Nijssen

Engel Johannes Knibbe

Zhizhong Zhang

Peiliang Dong

Aloys Hubbers

Onno Martin Janssen

Rong Fan

Hans Van Amstel

Rick Van Haasen

Leendert Teunis Rozendaal

Guido Roland Hiertz

Johan Paul Marie Gerard Linnartz

Theodorus Jacobus Johannes Denteneer

Jin S Yu

Petrus Johannes Lenoir

Peter Fitski

Robert Cornelis Houtepen

Gustaf Sebastian Max

Jia Hu

Armand Michelmarie Lelkens

Bernard Walke

Jan Hendrik Poesse

Paulus Maria Johannes Oppeneer

Patrick Van Kooten

Peter Johannes Lenoir

Julius Everardus Petrus Ebing

Yonggang Du

The present invention relates to a wireless systemrunning multiple applications at the same time, such as for both lighting control and asset tracking. A nodecomprised in the wireless systemis capable to operate in multiple communication modes, with each communication mode is according to a different communication technology. One the other hand, one application may have a preferred communication mode different from another application, considering some applications may have higher security requirements than the others. In view of this, a mode switching method is disclosed to assist the nodeto serve multiple parallel applications in an efficient manner.

Reliable and security-aware communication in a hybrid wireless network

The invention provides an asset-tracking system () for tracking a target tag () in a space (), wherein the target tag () is configured to emit a target beacon signal, wherein the asset-tracking system () comprises a plurality of listener nodes () arranged in the space () and configured to detect the target beacon signal, wherein the asset-tracking system () comprises a control system (), wherein the control system () has access to (i) listener location data and to (ii) map data, wherein in an operational mode: the control system () determines the presence of an object (), wherein an object tag () is associated to the object (), and wherein the object tag () is configured to emit an object beacon signal, wherein the plurality of listener nodes () are configured to detect the object beacon signal and to provide a related object signal to the control system (); the control system () determines a confidence zone set () for each listener node () based on the related object signal, the listener location data and the map data; the plurality of listener nodes () detect the target beacon signal and provide a related target signal to the control system (); and the control system () determines a target tag location of the target tag () based on the related target signal, the listener location data, the map data, and the confidence zone sets () of the plurality of listener nodes ().

Asset-tracking system

The invention provides a target tag () for object tracking, wherein the target tag () is configured to detect listener beacon signals emitted by a plurality of listener nodes (), wherein the target tag () has access to transmission power-related data and receiver sensitivity-related data of the plurality of listener nodes (), and wherein in a tag operational mode the target tag () is configured to: detect the listener beacon signals and to determine related listener beacon signal strengths; determine a tag transmission power based on the related listener beacon signal strengths, the transmission power-related data, the receiver sensitivity-related data, and a predetermined goal number of reached listener nodes; and emit the target beacon signal at the tag transmission power.

The present invention relates to a receiver-centric transmission system for IoT systems, such as lighting networks, with combo protocol radio chips that share a single radio front-end for two or more transmission protocols of different network technologies while preventing unacceptable performance degradations in one or both protocol modes. The receiver-centric approach allows implementation of two networks with acceptable performances on one single radio chip per node rather than requiring two radio chips per node.

Receiver-centric communication by combined network technologies for enhanced reliability

The invention relates to a system and methods for providing conditional access to indoor location information in a system comprising a mobile device (), a positioning webservice () and an authorization authority (), the method comprising: the mobile device () performing the steps of: transmitting license information to the authorization authority () and transmitting a request for indoor location information to the positioning webservice, the request comprising a request-location-estimate corresponding to a location estimate of the mobile device () at the time of making the request, the authorization authority () performing the steps of: receiving the license information, verifying whether the license information authorizes access to indoor location information by the mobile device (), issuing a secure proof, verifiable by the positioning webservice () upon successful verification, the secure proof indicating that the license information authorizes access to indoor location information by the mobile device () for an authorized region; the positioning webservice () performing the steps of: receiving the request for indoor location information and the secure proof; verifying whether the secure proof authorizes the transmission of indoor location information to the mobile device () for the request-location-estimate; and upon successful verification sending indoor location information for the request-location-estimate to the mobile device ().

Methods and systems for providing conditional access to indoor location information

Methods and apparatus for assigning a role to a new lighting node in a lighting system based on a received signal strength indicator ('RSSI') fingerprint of the new lighting node. For example, methods and apparatus described herein are directed to determining RSSI fingerprints for each lighting node in a lighting system, matching one of the RSSI fingerprints to the RSSI fingerprint of a new lighting node, and assigning a role to the new 5 lighting node. The assigned role is the same role as previously assigned to the matching lighting node.

System and method for automatically recommissioning a lighting node using wireless signal characteristics

The invention describes a method of performing automatic commissioning of a network (N) comprising a plurality of network devices (), wherein each device () is characterised by a device identifier () and wherein the devices () are realised to exchange data packets (), which method comprises the steps of obtaining a computer-readable installation plan () for the network (N), which installation plan () comprises a physical location descriptor () for devices () of the network (N); deducing the network topology (T) of the network (N) from network descriptive information () provided by the devices () on the basis of data packets () exchanged between the devices (); and comparing the deduced network topology (T) to the installation plan () to allocate a physical location descriptor () to a device identifier (). The invention further describes a commissioning system () for automatically commissioning a network (N) comprising a plurality of network devices (), wherein each device () is characterised by a device identifier () and wherein each device () is realised to transmit and receive data packets (), which commissioning system () comprises a source () of a computer-readable installation plan () for the network (N), which installation plan () comprises a physical location descriptor () for each device () of the network (N); a device control interface () realised to collect network descriptive information () provided by the devices (); a topology discovery unit () realised to derive the network topology (T) of the network (N) from the provided network descriptive information (); and a commissioning unit () realised to compare the derived network topology (T) to the installation plan () to allocate a physical location descriptor () to a device identifier ().

Method of performing automatic commissioning of a network

A method comprising: obtaining a respective measurement of a beacon signal transmitted wirelessly between the mobile device and each of a plurality of the reference nodes; for each of a plurality of different reference locations within the environment, distinct from the reference nodes, obtaining a corresponding measurement of a test signal previously transmitted or modelled to have been transmitted wirelessly between the reference location and each of the plurality of reference nodes; for each of the reference locations, determining for each of said plurality of beacon nodes a difference between the respective measurement of the beacon signal and the measurement of the test signal; for each of the reference locations, determining a value of a measure of statistical spread in these differences; and estimating the location of the mobile device in dependence on a comparison of the values of the measure of statistical spread determined for the different reference locations.

Localization of a mobile device

The present invention is related to verifying an installed lighting system (), in particular an Ethernet-based lighting system (), without it being necessary to employ a designated lighting controller and without it being necessary to completely commission the installed lighting system (). According to an aspect of the invention, this is achieved by providing a network switch () that comprises a plurality of ports for coupling luminaires (A,B,C,D) and sensors and/or actuators (A,B) of the lighting system () to the network switch (); and by setting the network switch () such that a signal received at a first port (e.g. port) of the plurality of ports is only forwarded to pre-selected ports (e.g. portsand) of the plurality of ports.

Out-of-the-box commissioning of a control system

The present invention relates to a method for operating a communication apparatus in a network comprising a plurality of communication nodes, upon reception of a message at the communication apparatus, the communication apparatus starting a retransmission delay being selected at random from a retransmission delay interval, said retransmission delay interval being dependent on at least one of a status of the communication apparatus and a property of the received message, the communication apparatus monitors retransmissions of said message by other communication nodes during said retransmission delay and the communication apparatus transmitting a retransmission of said message at the expiry of said retransmission delay if a statistic based on the retransmissions of said message by other communication nodes is below a threshold.

Method for operating a communication apparatus and communication apparatus

The present invention is a method of managing a neighbor table in a communication apparatus. The method includes the steps of the communication apparatus maintaining a neighbor table comprising a plurality of neighboring table entries corresponding to respective neighboring nodes being communication nodes in communication range of the communication apparatus. Upon determination that the neighbor table capacity has reached a threshold, replacing a first neighbor table entry corresponding to a first neighboring node from the neighbor table by a new neighbor table entry corresponding to a new neighboring node based on the determination that the new neighboring node is a communication partner. A communication node is defined as a communication partner if at least one the following conditions is met: a message including the communication partner as source address has been received by the communication apparatus, or a message including the communication partner as destination address has been transmitted by the communication apparatus.

Method for managing a neighbor table and communication apparatus adapted for managing a neighbor table

The present invention is related to verifying an installed lighting system (), in particular an Ethernet-based lighting system (), without it being necessary to employ a designated lighting controller and allowing the automatic commissioning of the installed lighting system (). According to an aspect of the invention, this is achieved by providing a network switch () that comprises a plurality of ports for coupling luminaires (A,B,C,D) and sensors and or actuators (A,B) of the lighting system () to the network switch (); and by setting the network switch () such that a signal received at a first port (e.g. port) of the plurality of ports is only forwarded to pre-selected ports (e.g. portsand) of the plurality of ports.

Out-of-the-box commissioning of a lighting control system

As at least part of a location network, there is provided a trigger node and multiple listening nodes. The trigger node wirelessly transmits a trigger signal to the mobile device, the trigger signal being configured to cause the mobile device to wirelessly emit a signal in response to receiving the trigger signal. The listening nodes listen for the response signal that was transmitted from the mobile device in response to the trigger signal, and thereby at each respective one of a plurality of the listening nodes that wirelessly receive the response signal from the mobile device, a respective measurement is taken of the response signal as received at the respective listening node, for use in performing a localization to determine the location of the mobile device based on one or more of these measurements.

Method and apparatus for locating of a mobile device

A system comprising location server, a localization module and a node manager. The location server comprises a network interface operable to receive measurement reports submitted from a plurality of reference nodes of a location network, each measurement report reporting a measurement of a signal received by a respective one of the reference nodes from a respective one of one or more mobile devices. The localization module is configured to determine a location of one or more of the mobile devices based on at least some of the plurality of measurement reports. The node manager is configured to control whether and/or when one or more of the plurality of measurement reports are submitted from one or more of the reference nodes, in dependence on a measure of relevance to the determination of the location of one or more of the mobile devices.

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Eindhoven, Netherlands

Xiangyu Wang