Patent ID: 7526380

Claim:
A system that provides to one or more users with information about position coordinates of one or more remote vehicles or individuals Mobile Agents in any environment as obtained from GPS/SBAS signals complemented with an Integrity Guarantee Information, the Integrity Guarantee Information means that the system provides besides the position coordinates a Protection Level, where Protection Level means a limit such that the probability that the actual position error be above it is lower than a value called Integrity Risk, the system further comprising Mobile Units MUs, each mobile Unit being carried by each Mobile Agent and a Central Platform CP, each Mobile Unit comprising a GPS/SBAS receiver and an On Board Processor, OBP, a wireless data telecommunications transceiver MODEM and a non-volatile memory, wherein the Mobile Unit receives the navigation signal GPS and the SBAS messages from a SBAS geostationary satellite through the GPS SBAS receiver, the Mobile Unit estimates its position coordinates and associated Protection Level, and if the Protection Level can not be computed with a required Integrity Risk, then an Integrity Unhealthy flag is issued to accompany the obtained position to indicate that the position error can not be bounded with the required Integrity Risk, in order to compute said position and Protection Levels the Mobile Unit uses SBAS and ionosphere Integrity information about GPS satellites and an Autonomous Integrity Algorithm, and provides the following information: position estimate, Integrity healthy/unhealthy flag and the Protection Levels, which are encoded in a data packet that the Mobile Unit transmits through the MODEM to the Central Platform, the Central Platform providing to multiple authorized users with localization information and associated Integrity Information based on the reception and processing of the data packets received from Mobile Unit, the Central Platform coordinates the reception, storage and delivery to user s of the Mobile Agents Localization Information, and in addition applies a privacy policy secure enough to protect the data of all Mobile Agents.