By combining ranging techniques, it is possible to use RF ranging to provide an estimate of a tags position, switching to an alternative method to determine the fine location. This allows the user to save installation and management costs in the system.
SALUS asset tags can now operate Bluetooth-Low Energy (BLE) and LoRa signalling, simultaneously within a single 2.4GHz radio hardware device (Tag)
When the user wants to pinpoint an exact asset tag location, it instructs the tag to begin issuing BLE beacons at a predetermined interval.
Meanwhile, the user application (running on a mobile device) automatically switches from LoRa signalling to receive BLE beacons from the tag. The beacon signal includes a tag identifier, and an estimate of distance which allows the formation of hotter/colder feedback as the mobile device is carried around the tag location.