Process and arrangement for determining the position of at least one point of a track-guided vehicle
First Claim
1. A process for determining a position of at least one point of a vehicle moving on a given track, the process comprising the steps of:
- obtaining in a mutually independent manner at least a number n of different types of position measuring data, with n being greater than or equal to three, by detecting objects present along the given track, a travelled path length of the vehicle, and a travelled route course of the vehicle;
determining a position result for each different type of position measuring data detected using a respective correlation of the detected position measuring data with a corresponding stored desired data quantity; and
determining the position of the vehicle from the position result for each type of detected measuring data by performing an m-out-of-n decision making process, where m=(n-x) and x is defined by the number of positions results not used for the analysis, said process determining a given number m from the number n of independently determined position results situated within an interval having a given resolution width, said interval being evaluated as the position to be determined.
2 Assignments
0 Petitions
Accused Products
Abstract
A process and an arrangement for determining the position of a vehicle moving on a given track by using a map matching process is provided. At least three types of position measuring data in the form of object site data, path length data and route course data are obtained. By use of a computer unit, for each type of measuring data, a data correlation is carried out with a respective pertaining stored desired data quantity for the determination of respective position results which then are evaluated, in an m-out-of-n decision making process. In this process, a given number m of the n determined position results is taken into account. With comparatively low expenditures, this permits a reliable and error-tolerant vehicle position determination for use, for example, for railway vehicles.
117 Citations
10 Claims
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1. A process for determining a position of at least one point of a vehicle moving on a given track, the process comprising the steps of:
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obtaining in a mutually independent manner at least a number n of different types of position measuring data, with n being greater than or equal to three, by detecting objects present along the given track, a travelled path length of the vehicle, and a travelled route course of the vehicle; determining a position result for each different type of position measuring data detected using a respective correlation of the detected position measuring data with a corresponding stored desired data quantity; and determining the position of the vehicle from the position result for each type of detected measuring data by performing an m-out-of-n decision making process, where m=(n-x) and x is defined by the number of positions results not used for the analysis, said process determining a given number m from the number n of independently determined position results situated within an interval having a given resolution width, said interval being evaluated as the position to be determined. - View Dependent Claims (2, 3, 4)
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5. An arrangement for determining a position of at least one point of a vehicle moving along a given track, the arrangement comprising:
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a computer unit for carrying out data correlations as well as an m-out-of-n decision finding process, wherein n is the number of different types of position measuring data that are obtained and wherein m=(n-x) and x is defined by the number of positions results not used for the analysis; a plurality of memories coupled to said computer unit, said memories being read out by said computer unit and having stored therein desired data quantities; and a sensing system for obtaining position measuring data, said sensing system including at least an object recognition sensor unit for obtaining object site data, a path length measuring unit for obtaining path length data, and an angle-of-rotation measuring unit for obtaining route course data being arranged on the side of the vehicle. - View Dependent Claims (6, 7, 8, 9, 10)
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Specification