Patent · US Expired

Distance-estimation method for a travelling object subjected to dynamic path constraints

US7739035B2 · kind B2 · utility

0Cited by
16References
10Claims
0Family size

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Inventors

Key dates

Filing dateSep 8, 2004
Grant dateJun 15, 2010
Priority date—
Expiry dateFeb 2, 2026

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG08G5/80
  • WIPO fieldControl
  • WIPO sectorInstruments

Abstract

This method allows the calculation, using a terrain elevation database, of a map of the distances of the points accessible to a mobile object subjected to dynamic constraints evolving with its time of travel, for example an aircraft having an imposed vertical flight profile, the distances being measured solely according to paths achievable by the mobile object. It implements a propagation-based distance transform which catalogs the achievable paths going from a goal point whose distance is to be estimated to a source point which is the origin of the distance measurements and likens the distance of the goal point to the length of the shortest achievable path or paths.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.