Tracking system product / activity high reliability

摘要

Tracking system (10,10 ') configured to track a product and / or activity, and comprising: * a tracking device (11), which is coupled to a first receiver of global navigation satellite - GNSS - to acquire data therefrom; and * one verification server (12), which is coupled to the tracking device (11) via a communication medium (13) configured to allow the exchange of data between said tracking device (11) and said server check (12); the first GNSS receiver being configured to: * receive signals from a GNSS; * Process the received signals to obtain GNSS observables; and * compute locations based on GNSS observables; the tracking device (11) configured to: * acquire positioning data (21,31) from the first GNSS receiver, positioning data (21,31) comprising a first calculated by the GNSS receiver location, and time location representing the time and date that the first GNSS receiver calculates the location, positioning data (21,31) being related to a product and / or activity track; and * provide verification server (12) the positioning data (21,31) acquired from the first GNSS receiver; the tracking system (10,10 ') is characterized in that: the verification server (12) is configured to: * generate test instructions based on the positioning data (21,31) provided by the tracking device (eleven); and * provide the tracking device (11) instructions generated verification; the tracking device (11) is further configured to: * select, according to the test instructions provided by the verification server (12), one or more GNSS observable based on the first GNSS receiver calculates the location; * Purchased from the first GNSS observables selected GNSS receiver; and * provide verification server (12) also observable GNSS acquired from the first GNSS receiver; the verification server (12) is further configured to: * perform a consistency check including location based on the positioning data (21,31) provided by the tracking device (11) location, and the GNSS observables provided by the tracking device (11); * Generating a validation code (23,33) on the basis of a result of the consistency check location, and based on the positioning data (21,31) provided by the tracking device (11); and * provide the tracking device (11) the generated validation code (23,33); the tracking device (11) is further configured to: * storing positioning data (21,31) and the validation code (23,33) provided by the verification server (12) in the tracking means (50) associated with the product and / or activity track.