Method for Calculating an Augmented Reality Overlay for Displaying a Navigation Route on an AR Display Unit, Device for Carrying Out the Method, Motor Vehicle and Computer Program

Patent metadata

Field	Value
Publication number	US-2021215499-A1
Application number	US-201915734093-A
Country	US
Kind code	A1
Filing date	May 9, 2019
Priority date	Jun 1, 2018
Publication date	Jul 15, 2021
Grant date	—

Abstract

The invention relates to a method for calculating an AR overlay of additional information for display on an AR display unit, in particular a head-up display of a vehicle or smart glasses. The AR overlay is used to display a navigation route on the AR display unit. The navigation route is recalculated from time to time by a navigation system. The method is characterized in that the AR overlay is calculated in such a way that the recalculated route is displayed at least at a certain first distance before a branch-off point, and the driver is given an operating option of switching back and forth between the overview of the recalculated route and the previously calculated route.

First claim

What is claimed is:

1 . A method for calculating an AR overlay for displaying a navigation route on an AR display unit, in particular a head-up display of a vehicle or smartglasses, wherein the navigation route is calculated by a navigation system, wherein the navigation route is recalculated by the navigation system from time to time, wherein the AR overlay is calculated such that an indication of the recalculated route is overlaid at least at a certain first distance before a branch-off point, wherein the driver is given an operating option of overlaying an overview of the recalculated route, and wherein the driver is given an operating option of switching back and forth between the overview of the recalculated route and an overview of the previously calculated route, wherein the AR overlay for displaying the route overview of the recalculated route and the previously calculated route is calculated such that the course of the relevant route is displayed up to the destination.

2 . The method of claim 1 , wherein an AR overlay is calculated before the recalculated route is overlaid such that the driver is given an indication of the recalculated route, with an operating suggestion as to how the driver can have the route overview for the recalculated route overlaid.

3 . The method of claim 1 , wherein the AR overlay for the route overview is calculated such that it is zoomable, wherein a zooming operation can be carried out by operating the steering wheel.

4 . The method of claim 1 , wherein, prior to the route overview being overlaid, the driving situation is assessed and the route overview is only overlaid if the result of the driving situation assessment is that the driving situation does not require increased attention from the driver.

5 . The method of claim 1 , wherein an AR overlay is calculated at a certain second distance before the branch-off point such that the recalculated route is displayed next to the previously overlaid route, wherein the navigation path for one of the two routes extends to the branch-off point and the other navigation path continues past the branch-off point.

6 . The method of claim 1 , wherein the AR overlay for displaying the recalculated route is calculated such that it has a different color to the AR overlay for showing the previously calculated route.

7 . The method of claim 6 , wherein the route that would take the most time is displayed in a red or orange color, whereas the route that is more attractive in terms of time is displayed in a blue or green color.

8 . The method of claim 5 , wherein the route not followed by the vehicle is hidden after the navigation system has identified which route the vehicle is following.

9 . The method of claim 8 , wherein the activation of the turn signal of the vehicle or a corresponding user input via an operating unit or a spoken command is evaluated by the navigation system in order to identify which route the vehicle is following.

10 . A device for carrying out the method of claim 1 , comprising an AR display unit, further comprising a navigation system, which calculates a navigation route, wherein the navigation system is designed to recalculate the navigation route from time to time, further comprising a computing unit for calculating an AR overlay, wherein the computing unit calculates the AR overlay such that an indication of the recalculated navigation route is overlaid at least at a certain first distance before a branch-off point, wherein the computing unit is designed such that the indication of the recalculated route contains an operating option to overlay an overview of the recalculated route and to overlay an operating option by means of which the driver can switch back and forth between the display of the route overview for the recalculated route and the previously calculated route, wherein the computing unit is designed to calculate the AR overlay for displaying the route overview of the recalculated route and the previously calculated route such that the course of the relevant route is displayed up to the destination.

11 . (canceled)

12 . The device of claim 10 , wherein the display unit is a head-up display HUD or smartglasses.

13 . A motor vehicle, wherein the motor vehicle comprises a device of claim 10 .

14 . A non-transitory computer-readable medium including contents that are configured so that, when executed on a computing unit, to carry out the steps of the method for calculating an AR overlay for displaying a navigation route on an AR display unit of claim 1 .

15 . The method of claim 2 , wherein the AR overlay for the route overview is calculated such that it is zoomable, wherein a zooming operation can be carried out by operating the steering wheel.

16 . The method of claim 2 , wherein, prior to the route overview being overlaid, the driving situation is assessed and the route overview is only overlaid if the result of the driving situation assessment is that the driving situation does not require increased attention from the driver.

17 . The method of claim 3 , wherein, prior to the route overview being overlaid, the driving situation is assessed and the route overview is only overlaid if the result of the driving situation assessment is that the driving situation does not require increased attention from the driver.

18 . The method of claim 2 , wherein an AR overlay is calculated at a certain second distance before the branch-off point such that the recalculated route is displayed next to the previously overlaid route, wherein the navigation path for one of the two routes extends to the branch-off point and the other navigation path continues past the branch-off point.

19 . The method of claim 3 , wherein an AR overlay is calculated at a certain second distance before the branch-off point such that the recalculated route is displayed next to the previously overlaid route, wherein the navigation path for one of the two routes extends to the branch-off point and the other navigation path continues past the branch-off point.

20 . The method of claim 4 , wherein an AR overlay is calculated at a certain second distance before the branch-off point such that the recalculated route is displayed next to the previously overlaid route, wherein the navigation path for one of the two routes extends to the branch-off point and the other navigation path continues past the branch-off point.

Assignees

• Volkswagen Ag

Inventors

• Kassner Astrid
• Henning Matthias
• Schmidt Norwin

Classifications

• G01C21/365 Primary

  Guidance using head up displays or projectors, e.g. virtual vehicles or arrows projected on the windscreen or on the road itself · CPC title

• G02B27/01

  Head-up displays · CPC title

• G01C21/3664

  Details of the user input interface, e.g. buttons, knobs or sliders, including those provided on a touch screen; remote controllers; input using gestures · CPC title

• G01C21/3676

  Overview of the route on the road map · CPC title

• G01C21/367

  Details, e.g. road map scale, orientation, zooming, illumination, level of detail, scrolling of road map or positioning of current position marker · CPC title