Patent ID: 7944350

Claim:
An asset tracking system comprising: an input operable to receive device data representative of at least one property of a portable asset tracking device associated with a tracked asset, the at least one property including device identification data, wherein the portable asset tracking devices includes a direction signal transmitter; an asset identifier operable to identify the asset corresponding to received identification data; an event data generator operable to generate event data corresponding to a commencement of a tracking event in connection with the portable asset tracking device; an input operable to receive a signal from the portable asset tracking device into a tracking system having first and second locators; the first locator operable to generate first location data representative of a first alternative calculated location area of the portable asset tracking device; the second locator operable to generate second location data representative of a second alternative calculated location area of the portable asset tracking device calculated in accordance with the first location data, and wherein the second locator includes a position signal receiver operable to receive the direction signal; wherein the tracking system includes a cellular communication system and wherein at least one locator is operable in conjunction with cellular location data communicated from the cellular communication system, wherein the cellular location data includes data corresponding to at least one cell tower identified as being in data communication with the tracking system; an input operable to receive geographic location data corresponding to a geographic area defined in accordance with at least one of the first and second location data; an input operable to receive updated location data corresponding to a modified location of the portable asset tracking device relative to at least one of the location areas; a progress data generator operable to generate progress data generated in accordance with at least one of the first location data and the second location data, relative to the updated location data, the progress data being representative of at a route of the portable asset tracking device; an output operable to communicate the progress data to the tracking system; an input operable to receive device operational data corresponding to an operational status of the portable asset tracking device via the cellular communication system; an input operable to receive temporal data representative of at least one temporal property of the tracking event; and a display generator operable to generate a display in accordance with display data from a set including the device data, the event data, the location data, device service data, and the temporal data.