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: A distributed control system including a plurality of controllers, each controller of the plurality of controllers being in communication with the remaining controllers of the plurality of controllers, each controller being configured to control at least one device, each controller being further configured to: initiate a first timer, in response to a received signal, the first timer having a length that is unique with respect to the first timer lengths of the remaining controllers of the plurality of controllers; send a first notification signal, upon the expiration of the first timer, to the remaining controllers notifying the remaining controllers of an intent to send a command signal; send the command signal to the at least one device, wherein the controller is configured to cancel sending the notification signal and the command signal if the notification signal is first received from one of the remaining controllers of the plurality of controllers prior to the expiration of the first timer.

Abstract: A distributed control system including a plurality of controllers, each controller of the plurality of controllers being in communication with the remaining controllers of the plurality of controllers, each controller being configured to control at least one device, each controller being further configured to: initiate a first timer, in response to a received signal, the first timer having a length that is unique with respect to the first timer lengths of the remaining controllers of the plurality of controllers; send a first notification signal, upon the expiration of the first timer, to the remaining controllers notifying the remaining controllers of an intent to send a command signal; send the command signal to the at least one device, wherein the controller is configured to cancel sending the notification signal and the command signal if the notification signal is first received from one of the remaining controllers of the plurality of controllers prior to the expiration of the first timer.

Abstract: The invention relates to a controlled device (1, 1?), a system (25, 25?) comprising such controlled device (1, 1?) and a controller device (21), a method for setting up such controlled device (1, 1?) and a software product for a set up processor (3, 3?) of such controlled device (1, 1?). In order to allow the controlled device (1, 1?) to persistently stay within the framework of the system (25, 25?) over its power cycles while avoiding or at least reducing a need for a costly element like a NVRAM on the side of the controlled device (1, 1?). Rather than providing costly NVRAM in the controlled device (1, 1?), the controlled device (1,1?) is just provided with fixed information which allows the controlled device (1,1?) to receive or obtain the variable control data from the controller device (21) as an outside source.

Abstract: The invention relates to a controlled device (1, 1?), a system (25, 25?) comprising such controlled device (1, 1?) and a controller device (21), a method for setting up such controlled device (1, 1?) and a software product for a set up processor (3, 3?) of such controlled device (1, 1?). In order to allow the controlled device (1, 1?) to persistently stay within the framework of the system (25, 25?) over its power cycles while avoiding or at least reducing a need for a costly element like a NVRAM on the side of the controlled device (1, 1?). Rather than providing costly NVRAM in the controlled device (1, 1?), the controlled device (1,1?) is just provided with fixed information which allows the controlled device (1,1?) to receive or obtain the variable control data from the controller device (21) as an outside source.