Abstract: The invention provides an asset-tracking system (100) for tracking a target tag (10) in a space (500), wherein the target tag (10) is configured to emit a target beacon signal, wherein the asset-tracking system (100) comprises a plurality of listener nodes (110) arranged in the space (500) and configured to detect the target beacon signal, wherein the asset-tracking system (100) comprises a control system (300), wherein the control system (300) has access to (i) listener location data and to (ii) map data, wherein in an operational mode: the control system (300) determines the presence of an object (200), wherein an object tag (210) is associated to the object (200), and wherein the object tag (210) is configured to emit an object beacon signal, wherein the plurality of listener nodes (110) are configured to detect the object beacon signal and to provide a related object signal to the control system (300); the control system (300) determines a confidence zone set (230) for each listener node (110) based on th

Abstract: The invention provides an asset-tracking system (100) for tracking a tag (10) in a space (500), wherein the tag (10) periodically emits a beacon signal (20), wherein the asset-tracking system (100) comprises a plurality of listener nodes (110) arranged in the space (500) and configured to detect the beacon signal (20), and wherein the asset-tracking system (100) comprises a control system (300), wherein the control system (300) has access to location data of the plurality of listener nodes (110), wherein in an operational mode: each listener node (110) of the plurality of listener nodes (110) determines a signal property upon detecting the beacon signal (20), wherein the listener node (110) determines an announcement delay based on the signal property; each listener node (110) announces a measurement signal (120) after the announcement delay to a related proper subset (111) of the plurality of listener nodes (110) unless the listener node (110) has received a predetermined number m of measurement signals (120

Abstract: The invention provides a target tag (10) for object tracking, wherein the target tag (10) is configured to detect listener beacon signals emitted by a plurality of listener nodes (110), wherein the target tag (10) has access to transmission power-related data and receiver sensitivity-related data of the plurality of listener nodes (110), and wherein in a tag operational mode the target tag (10) 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.

Abstract: The present invention relates to a wireless system 100 miming multiple applications at the same time, such as for both lighting control and asset tracking A node 200 comprised in the wireless system 100 is 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 node 200 to serve multiple parallel applications in an efficient manner.

Abstract: The invention describes a method of performing automatic commissioning of a network (N) comprising a plurality of network devices (10, 11, 12, 13), wherein each device (10, 11, 12, 13) is characterised by a device identifier (14) and wherein the devices (10, 11, 12, 13) are realised to exchange data packets (2), which method comprises the steps of obtaining a computer-readable installation plan (3) for the network (N), which installation plan (3) comprises a physical location descriptor (31) for devices (10, 11, 12, 13) of the network (N); deducing the network topology (T) of the network (N) from network descriptive information (40, 41, 42, 43) provided by the devices (10, 11, 12, 13) on the basis of data packets (2) exchanged between the devices (10, 11, 12, 13); and comparing the deduced network topology (T) to the installation plan (3) to allocate a physical location descriptor (31) to a device identifier (11).

Abstract: 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.

Abstract: The present invention relates to method for wireless communicating in a network comprising a resource-constrained end device, and a first router device, wherein the method comprises the following steps:—the end device (ZBLD) sending a trigger for proxy search procedure,—the first router (R1) device receiving the trigger for proxy search procedure, the first router (R1) determining whether it fulfills conditions for acting as a router for the end device, and in case conditions are fulfilled, the first router appointing itself as a proxy router for the end device, for relaying communication between the end device and the rest of the network. The invention also relates to an end device, a router device, and net work therefor.

Abstract: 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.

Abstract: The invention provides a mesh network bridging device adapted to allow a resource restricted device to pass and/or receive signals from a mesh network. The mesh network bridging device is operable over both a first communication channel, so as to communicate with the resource restricted device, and a second communication channel, so as to communicate with the mesh network. The mesh network bridging device is adapted to switch between a first and second mode of operation, associated with the first and second communication channel respectively, so as to alternately communicate with the resource restricted device and the mesh network bridging device. The mesh network bridging device may thereby act as a bridge between the resource restricted device and the mesh network bridging device.

Abstract: 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.

Abstract: 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.

Abstract: The invention describes a method of performing automatic commissioning of a network (N) comprising a plurality of network devices (10, 11, 12, 13), wherein each device (10, 11, 12, 13) is characterised by a device identifier (14) and wherein the devices (10, 11, 12, 13) are realised to exchange data packets (2), which method comprises the steps of obtaining a computer-readable installation plan (3) for the network (N), which installation plan (3) comprises a physical location descriptor (31) for devices (10, 11, 12, 13) of the network (N); deducing the network topology (T) of the network (N) from network descriptive information (40, 41, 42, 43) provided by the devices (10, 11, 12, 13) on the basis of data packets (2) exchanged between the devices (10, 11, 12, 13); and comparing the deduced network topology (T) to the installation plan (3) to allocate a physical location descriptor (31) to a device identifier (11).

Abstract: The invention relates to a proxy node comprising means for managing a proxy table, a receiver for receiving a message from a first resource restricted device, said message being intended to at least one corresponding destination device, control means for checking whether an entry for the first resource restricted device is included in the set of entries of the proxy table, the set of entries of the proxy table indicating the set of resource-restricted devices the proxy node is in charge of, a transmitter for forwarding the message depending on the result of the proxy table checking, the means for managing the proxy table being arranged for cleaning the proxy table of the entry relative to the resource-restricted device by monitoring the relative usage of the proxy node for forwarding messages for the resource restricted device with the usage of competitor proxy nodes for forwarding messages for the resource restricted device.

Abstract: The invention relates to a disaggregation apparatus (1) for identifying an electrical consumer in an electrical network (2). An electrical signature providing unit (7) provides electrical signatures of the electrical consumers (4, 5, 6), and an electrical parameter determining unit (8) determines an overall electrical parameter of the electrical network (2). An identification unit (9) identifies an electrical consumer depending on the determined overall electrical parameter and a correlation of the electrical signatures. Since the identification unit identifies an electrical consumer depending on the determined overall electrical parameter and a correlation of the electrical signatures, the identification of an electrical consumer does not depend on the detection of an event only. This makes the identification more robust, especially less prone to errors caused by missed events, thereby improving the reliability of identifying an electrical consumer in the electrical network.

Abstract: 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.

Abstract: The invention describes a method of performing automatic commissioning of a network (N) comprising a plurality of network devices (10, 11, 12, 13), wherein each device (10, 11, 12, 13) is characterized by a device identifier (14) and wherein the devices (10, 11, 12, 13) are realized to exchange data packets (2), which method comprises the steps of obtaining a computer-readable installation plan (3) for the network (N), which installation plan (3) comprises a physical location descriptor (31) for devices (10, 11, 12, 13) of the network (N); deducing the network topology (T) of the network (N) from network descriptive information (40, 41, 42, 43) provided by the devices (10, 11, 12, 13) on the basis of data packets (2) exchanged between the devices (10, 11, 12, 13); and comparing the deduced network topology (T) to the installation plan (3) to allocate a physical location descriptor (31) to a device identifier (11).

Abstract: 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.

Abstract: The present invention relates to a method of managing a neighbor table in a communication apparatus the method comprising 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, said maintaining including, 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, wherein a communication node is defined as a communication partner if at least one the following conditions is met: condition a a message including the communication partner as source address has been received by the communication apparatus, or condition b a message including the communi

Abstract: A method of tracking a location of a mobile device based on measurements of beacon signals transmitted between the mobile device and wireless reference nodes of a localization network.

Abstract: The invention provides a mesh network bridging device adapted to allow a resource restricted device to pass and/or receive signals from a mesh network. The mesh network bridging device is operable over both a first communication channel, so as to communicate with the resource restricted device, and a second communication channel, so as to communicate with the mesh network. The mesh network bridging device is adapted to switch between a first and second mode of operation, associated with the first and second communication channel respectively, so as to alternately communicate with the resource restricted device and the mesh network bridging device. The mesh network bridging device may thereby act as a bridge between the resource restricted device and the mesh network bridging device.