MULTI-FUNCTION TRACKING DEVICE WITH ROBUST ASSET TRACKING SYSTEM

摘要

A tracking system for tracking at least one mobile multi-function device in a defined area. The multi-function devices including a transmitter/receiver and a device for determining the position of the device to transmit a signal including the determined position. A plurality of other multi-function devices are placed in and around the defined area to present an array of devices adapted to independently determine both the current position of the device and the accuracy of the position and communicate that to the other devices in the system. A signal processor calculates the position of the mobile multi-function device.