Patent ID: 8896442

Claim:
A wireless sensor for tracking a location of an associated target mobile asset that is moveable, along with other mobile assets, within a multi-dimensional region, the wireless sensor for the target mobile asset comprising: a two-way wireless communication module for two-way wireless communication with, when in range, a plurality of other wireless sensors that are each configured to transmit and receive data wirelessly, wherein the plurality of other wireless sensors comprises: a plurality of mobile wireless sensors that are each associated with one of the other mobile assets; and a plurality of known-location wireless sensors that are located at separate, known locations such that the plurality of known-location wireless sensors cover the multi-dimensional region; and a processor that is programmed to determine an updated location of the wireless sensor for the target mobile asset using an iterative localization algorithm and based on at least one of (i) data exchanged with a subset of the plurality of other wireless sensors that are nearby to the target mobile asset and (ii) the known locations of the plurality of known-location wireless sensors.