MACHINE NAVIGATION SYSTEM HAVING INTEGRITY CHECKING

摘要

A navigation system (20) for a machine (12) is disclosed. The navigation system (20) may have a navigation unit (26) configured to measure a position of a machine (12) at a first time and at a second time, and at least a first sensor (30) configured to generate at least a first signal indicative of a speed and a heading of the machine (12) during a time period from the first time to the second time. The navigation system (20) may also have a controller (28) configured to estimate a position of the machine (12) at the second time based on the measured position of the machine (12) at the first time and the at least a first signal, and to make a comparison of the measured position of the machine (12) at the second time with the estimated position of the machine (12) at the second time. The controller (28) may also be configured to determine an integrity of the navigation unit (26) based on the comparison.