Patent ID: 7941158

Claim:
A system for tracking the location, movement and activity status of mobile equipment at a remote working site comprising: a central computer unit remote from the working site having access to information in a first database controlled by a first logic unit; at least one mobile computer unit joined with a respective mobile equipment unit, each of the at least one mobile computer units having access to information in a second database controlled by a second logic unit, wherein the second database contains at least one database, the mobile computer unit being configured to collect and transmit to the central computer unit data describing known paths along the working site as well as data describing grades and conditions of the paths, wherein data describing the known paths along the working site, paths, and conditions of the paths are collected based on travels of the mobile equipment unit and communication with the at least one mobile computer unit; a programmable mapping system in communication with the second logic unit and situated to map the at least one database to an object model used by the second logic unit and maintain a referential integrity within the at least one database; and at least one wireless communication device enabling communication between said first logic unit and said second logic unit, wherein said mobile computer unit is operable independently of the first logic unit utilizing information in said second database while communication with said first logic unit is interrupted; said central computer unit in communication with the first logic unit and in communication with the second logic unit, whereby the central computer unit issues commands to the second logic unit through said wireless communication network to update the information in the second database with information from the first database facilitating said mobile computer unit being operable independently of the first logic unit utilizing information in said second database while communication with said first logic unit is interrupted, wherein information from at least one of the first database and the second database is used to perform trend analysis of at least one of current data, historical data, or a combination thereof.