Error correction method for the location of terrestrial vehicles within an enclosure

Abstract

Abstract A correction method for the compound navigation of land vehicles is proposed which operates particularly quickly and with little expenditure of memory capacity. In the correction method, a city map is stored in polygonal representation with a grid of area elements (30). Area elements which are cut from a segment of the city map in polygonal representation are allocated a first logical value and for area elements which are not cut from any segment a second logical value is allocated (grid representation). The logical values of the area elements are stored in a computer in the form of a matrix. From the position coordinates (X1, Y) of the land vehicle, the computer determines the associated area element and determines its logical value. If the relevant area element has the second logical value, the computer checks the logical values and the position of the adjacent area elements and corrects the relevant position coordinates in the direction of a displacement to an adjacent area element (49) with the first logical value and the respective angle of the path curve in the direction of the last-mentioned area element. <IMAGE>

Inventors

• 👤 Rainer Dipl. Ing. Hankel
• 👤 Minh-Chanh Dipl. Ing. Pham
• 👤 Friedrich Dr.Ing. Raske
• 👤 Wilfried Dipl. Ing. Urbanski

Bibliographic Details