US 10,539,680 B2 · Method and system for determining the accuracy of a satellite-based navigation system

Abstract

The disclosure relates to a method for determining the accuracy of a satellite-based navigation system for a vehicle during operation on a test route. The method includes providing a light beam propagating essentially perpendicularly to the direction of travel along the test route at each of two selected measurement points on the test route. Upon detection of the light beams impacting the vehicle perpendicularly to the direction of travel, a detection of the position and the direction of travel measured by a receiver of the satellite-based navigation system is triggered by means of an optical triggering device fastened on the vehicle. Finally, an accuracy of the satellite-based navigation system is determined on the basis of the two detected positions and directions of travel and position coordinates of the two selected measurement points. The disclosure also relates to a corresponding system for determining the accuracy of a satellite-based navigation system.

Claims15

Dependent claims

A method for determining accuracy of a vehicle satellite-based navigation system during operation on a test route comprising:

providing light beams propagating perpendicularly to a direction of travel of a vehicle along the test route to each of two selected measurement points on the test route, wherein the direction of travel at each of the two measurement points are not parallel;
detecting the light beams impacting the vehicle perpendicularly to the direction of travel via an optical triggering device fastened on the vehicle during operation of the vehicle on the test route;
triggering a detection of at least two positions and the direction of travel measured by a receiver of the satellite-based navigation system upon detection of a light beam by the optical triggering device;
determining an accuracy of the satellite-based navigation system based on the at least two positions, directions of travel and position coordinates of the two selected measurement points;
providing a light beam directed onto the vehicle perpendicularly to the direction of travel at three or more selected measurement points on the test route;
and
disposing, at one of the selected measurement points, a light source for providing the light beam perpendicular to the direction of travel.

4 more elements

A system for determining accuracy of a satellite-based navigation system for a vehicle during operation on a test route comprising:

two or more optical devices disposed at two or more selected measurement points on the test route having non-parallel directions of travel and are each configured to provide a light beam propagating perpendicularly to a vehicle direction of travel along the test route;
an optical triggering device fastened on the vehicle configured to detect the light beams from the optical devices impacting the vehicle perpendicularly to the vehicle direction of travel on the test route, and to trigger a detection of a detected position and the vehicle direction of travel measured by a receiver of the satellite-based navigation system, upon detection of one of the light beams;
and
a data processing system configured to determine an accuracy of the satellite-based navigation system based on the detected positions, directions of travel, and the position coordinates of the selected measurement points, wherein the test route includes two measurement points, each having directions of travel perpendicular to one another, to provide each light beam, via a light source disposed at each of the two measurement points, propagating along the test route perpendicularly to the direction of travel.

1 more element

Dependencies are inferred from the claim text.

Method and system for determining the accuracy of a satellite-based navigation system

Life of this patent

Method and system for determining the accuracy of a satellite-based navigation system

Life of this patent

Abstract

Claims15