server this transmission may be over any communications network for example a lan or a telephone network or a wireless network comprising a relay system through the beacons themselves at step 312 the server computes the physical location from the beacon id or the server detects a change of location of the asset determined from a list of beacons and a list of asset locations held by the server at step 314 the server stores the location of the asset in an asset location database at step 316 the location process ends referring to fig4 which shows in block diagram form the component parts of a system according to the present invention when the server 402 has determined the asset 120 122 location it records the location in the asset location database 404 the data recorded may be just the beacon id or ids or it may be the physical position determined as described below it may optionally report the position of the asset 120 122 to a move detection system 400 or may return the location information to the asset 120 122 where it can be made available to management systems the common information model of the desktop management task force defines standardised ways of making asset location data or alerts available to management systems the common information model cim is a schema for describing management information that is used to tie together existing differing management applications using this standard the location information and move alerts could be integrated into any enterprise management system without special programming the asset 120 122 may also locally compute its position or detect a change of position without reference to an external system and report the results to the server 402 in the same way radio.