METHOD AND SYSTEM FOR REAL-TIME LOCATION

摘要

System and method for real-time location of inanimate objects and/or persons (10) and/or animals within an environment (9), each object or person or animal being associated to a transmitting mobile device (1), there being provided a plurality of transceiver stations (2) placed in predetermined positions within the environment and a monitoring unit (3) in communication with said stations (2). The method provides the following steps: transmitting a signal by the mobile device (1); receiving the transmitted signal by a plurality of stations (2) reached by the signal and for each station calculating (2) a parameter of the distance from the mobile device (1), which distance parameter is obtained from the reception characteristics of the signal by the station (2); selecting a reference station (2') among the stations (2) reached by the signal, which reference station (2') is identified as the closest to the mobile device (1) on the basis of the distance parameter; selecting a set of stations (2), among the stations (2) reached by the signal, which set comprises the reference station (2') and three or more stations (2) closest to the reference station (2'); identifying a plurality of clusters corresponding to all the possible combinations of at least three stations (2) of the set of stations; for each cluster calculating the position of the mobile device (1) on the basis of the distance parameter of each station (2) of the cluster; calculating the position of the mobile device (1) by working out the mean of the positions calculated for each cluster.