Method for processing data of a route profile, decoding method, coding and decoding method, system, computer program, and computer program product

Patent metadata

Field	Value
Publication number	US-10794707-B2
Application number	US-201715397783-A
Country	US
Kind code	B2
Filing date	Jan 4, 2017
Priority date	Jul 9, 2014
Publication date	Oct 6, 2020
Grant date	Oct 6, 2020

Abstract

In a method for processing data of a route profile, which represent local physical roadway properties of a route segment, position information is determined, which is representative of a global position of the route segment. Route profile data are determined, which are representative of local physical roadway properties of the route segment. A spectral distribution is determined in dependence on the route profile data, with regard to a quantity that represents location information. The spectral distribution is associated with the position information.

First claim

What is claimed is:

1. A method for controlling vehicle functions in accordance with a route profile that represents local physical roadway properties of a route segment, the method comprising the steps of:
detecting, via one or more vehicle-based sensors, a local physical roadway property of the route segment on which a vehicle is travelling;
determining position information representative of a global position of the route segment;
determining, based on the detection, route profile data representing the local physical roadway properties of the route segment;
determining a spectral distribution of the route profile data, by applying a spectral function to the route profile data, in relation to a variable that represents location information;
assigning the spectral distribution to the position information;
providing the spectral distribution and position information to a vehicle function control unit; and
controlling vehicle functions, via the vehicle function control unit, based on the spectral distribution and position information, to account for the local physical roadway properties of the route segment.

2. The method as claimed in claim 1 , further comprising:
determining an asynchronous function that represents the route profile data.

3. The method as claimed in claim 1 , wherein the spectral distribution is representative of a spatial frequency distribution.

4. The method as claimed in claim 1 , wherein the spectral distribution is representative of a temporal frequency distribution.

5. The method as claimed in claim 1 , wherein the spectral distribution is assigned to the position information by a predefined coordinate system such that at least one value representing the location information:
(i) is assigned to a length, relative to a direction substantially along a progression of a route, and/or
(ii) is assigned to a width, relative to a direction substantially perpendicular to a progression of a route.

6. The method as claimed in claim 1 , wherein the route profile data are representative of a progression of a route height of the route segment.

7. The method as claimed in claim 1 , wherein the route profile data are representative of a progression of an inclination angle of the route segment.

8. The method as claimed in claim 1 , wherein the spectral distribution is assigned to the position information by a spectral distribution function being determined depending on the spectral distribution and the position information.

9. The method as claimed in claim 1 , wherein the route profile data are determined by a vehicle when traveling along the route segment, and the variable that represents the location information is determined depending on movement information of the vehicle.

10. The method as claimed in claim 9 , wherein the route profile data are determined depending on a progression of a mechanical variable within the vehicle.

11. The method as claimed in claim 9 , wherein the route profile data are determined depending on a progression of a route relief as detected using the vehicle.

12. The method as claimed in claim 9 , wherein a relative position of the vehicle on the route segment is determined, and the route profile data are determined depending on the relative position.

13. The method as claimed in claim 9 , wherein, in each case, a relative position of a plurality of measurement sites within the route segment is determined, and the route profile data are determined depending on the relative positions of the measurement sites.

14. The method as claimed in claim 9 , wherein the route profile data are determined by a progression of vertical and/or transverse forces acting on the vehicle being determined.

15. The method as claimed in claim 1 , wherein
a measure of similarity is determined between one or more data segments of the route profile data and one or more predefined patterns that are representative of predefined route profile patterns, and
the data segment is assigned to one of the predefined patterns depending on the determined measure of similarity.

16. The method as claimed in claim 1 , wherein determining the spectral distribution is carried out in the context of a predefined audio standard.

17. The method as claimed in claim 1 , wherein the spectral distribution is determined such that it represents multi-channel data, wherein one channel of the multi-channel data is representative of a first route strip, and one channel is representative of a second route strip.

18. The method as claimed in claim 1 , wherein determining the spectral distribution is carried out in the context of a predefined video standard.

19. The method as claimed in claim 1 , wherein
reduced route profile data are determined depending on: (i) a progression of the route profile data by quantization of the route profile data, and/or the number of data of the route profile data which are assigned to a temporal unit, and/or (ii) a spatial unit, being set depending on the progression of the route profile data, and
the spectral distribution is determined from the reduced route profile data.

20. The method as claimed in claim 1 , wherein
reduced route profile data are determined depending on at least one or more predefined thresholds and depending on the route profile data by data that are representative of non-perceptible physical properties of the route segment being filtered out of the route profile data, and the spectral distribution is determined from the reduced route profile data.

21. The method as claimed in claim 20 , wherein
one or more thresholds correspond to one or more perceptibility thresholds, wherein at least two thresholds are different for different spectral components.

22. The method as claimed in claim 1 , wherein
a vehicle profile is provided, and
the route profile data are determined depending on a vehicle profile, such that they are representative of the local physical property of the route segment vehicle-independently.

23. The method as claimed in claim 1 , wherein the route profile data also represent a variable proportion of local physical roadway properties of a route segment, in the form of a:
distribution function of route moisture,
distribution function of route temperature, and/or
distribution function of coefficient of friction.

24. The method as claimed in claim 1 , further comprising the steps of:
providing the spectral distribution with the assigned position information, and
depending on the spectral distribution, determining route profile data, which are assigned to the spectral distribution and which are representative of a local physical property of the route segment.

25. The method as claimed in claim 1 , further comprising the steps of:
providing the spectral distribution with assigned position information determined in a first vehicle, and
determining at least the route profile data which are assigned to the spectral distribution and which are representative of a local physical property of the route segment in a second vehicle depending on the provided spectral distribution from the first vehicle.

26. The method as claimed in claim 25 , further comprising:
aggregating the spectral distributions of a plurality of first vehicles, and
providing the aggregated spectral distributions for one or more second vehicles.

27. The method as claimed in claim 26 , wherein at least one of the following method steps i

Assignees

• Bayerische Motoren Werke Ag

Inventors

• Augst Alexander

Classifications

• G01C7/04 Primary

  involving a vehicle which moves along the profile to be traced · CPC title

• G01B21/30

  for measuring roughness or irregularity of surfaces · CPC title

• G01C21/20 Primary

  Instruments for performing navigational calculations (G01C21/24, G01C21/26 take precedence) · CPC title

• G01C21/26

  specially adapted for navigation in a road network · CPC title