METHOD FOR DETERMINING THE STRESS FREE TEMPERATURE OF THE RAIL AND/OR THE TRACK RESISTANCE
First Claim
1. Method for determining at least a first parameter of a track, comprising:
- providing first track geometry quality data associated to at least one point along a rail at a first temperature,providing second track geometry quality data associated to said at least one point at a second temperature,describing a difference between the first and second track geometry quality data by means of a model relating the measured first and second track geometry quality data with associated measured temperatures to the unknown parameters of the model;
stress free temperature and/or track resistance, andestimating the stress free temperature and/or track resistance in said at least one point based on the measurements and the model.
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Accused Products
Abstract
A method and device for determining at least a first parameter of a track. The method includes providing a first track geometry quality data associated to at least one point along a rail at a first temperature, providing a second track geometry quality data associated to at least one point at a second temperature, and describing a difference between the first and second track geometry quality data using a model. The model relates the first and second track geometry quality data with associated temperatures to stress free temperature and/or track resistance, and estimates the stress free temperature and/or track resistance in at least one point based on the model.
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Citations
18 Claims
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1. Method for determining at least a first parameter of a track, comprising:
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providing first track geometry quality data associated to at least one point along a rail at a first temperature, providing second track geometry quality data associated to said at least one point at a second temperature, describing a difference between the first and second track geometry quality data by means of a model relating the measured first and second track geometry quality data with associated measured temperatures to the unknown parameters of the model;
stress free temperature and/or track resistance, andestimating the stress free temperature and/or track resistance in said at least one point based on the measurements and the model. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. The method for determining at least a first parameter of a track, comprising:
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providing first track geometry quality data associated to at least one point along a rail at a first temperature, providing second track geometry quality data associated to said at least one point at a second temperature describing a difference between the first and second track geometry quality data by means of a model relating the measured first and second track geometry quality data with associated measured temperatures to the unknown parameters of the model;
stress free temperature and/or track resistance, andestimating the stress free temperature and/or track resistance in said at least one point based on the measurements and the model, wherein the step of providing first track geometry quality data comprises providing a first series of track geometry quality data comprising data associated to a plurality of first measure points along the rail, wherein the step of providing second track geometry quality data comprises providing a second series of track geometry quality data comprising data associated to a plurality of second measure points along the rail, and further comprising a step of correlating the first series track geometry quality data with the second series track geometry quality data. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A device for determining at least a first parameter of a track, comprising:
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a registration unit arranged to register first track geometry quality data along with associated first temperature data and second track geometry quality data along with associated second temperature data, and processing means arranged to set up a model relating the first and second track geometry quality data with associated temperatures to stress free temperature and/or track resistance, and to estimate stress free temperature and/or track resistance in said at least one point based on the model.
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Specification