Method for inversion of corresponding line mileage and offset by using known coordinate point
US11829687B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2023 |
| Grant date | Nov 28, 2023 |
| Priority date | — |
| Expiry date | Apr 27, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F30/13
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for inversion of a path mileage and offset by using a known coordinate point, comprising: based on coordinates of a known point P and curve elements of a start location and an end location of a curve element, first segmenting or not segmenting the curve element according to a corner of the curve element to obtain a plurality of curve sub-elements (AiBi), and calculating curve elements of the curve sub-elements (AiBi); taking any curve sub-element (AiBi) to calculate a half chord length S and a straight corner θ, and performing precision determination and convergence correction according to S and θ, the point P being always effective with respect to the curve sub-element (AiBi) in the correction process; and performing cyclic convergence calculation to finally obtain a distance from the point P to any point on a chord line or an arc line as an offset of the curve sub-element (AiBi) corresponding to the point P and to obtain a mileage of the curve sub-element (AiBi) corresponding to the point P. By calculating different curve sub-elements (AiBi), an effective offset and an effective mileage of the curve sub-element (AiBi) corresponding to the point P can be finally obtained.…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.