ASSET-TRACKING SYSTEM

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); one or more reporting listener nodes (112) are selected from the plurality of listener nodes (110), wherein the one or more reporting listener nodes (112) are a proper subset of the plurality of listener nodes (110); the one or more reporting listener nodes (112) provide an aggregate signal (122) to the control system (300), wherein the aggregate signal (122) comprises data related to a plurality of measurement signals (120); the control system (300) determines a location of the tag (10) based on the aggregate signal (122) and the location data.