The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 01, 2022
Filed:
Mar. 14, 2018
Veoneer Sweden Ab, Vargarda, SE;
Olof Eriksson, Älvsjö, SE;
Tobias Aderum, Gothenburg, SE;
Driouichi Chafik, Lund, SE;
Meifang Zhu, Lund, SE;
Olof Eriksson, Älvsjö, SE;
Tobias Aderum, Gothenburg, SE;
Driouichi Chafik, Lund, SE;
Meifang Zhu, Lund, SE;
VEONEER SWEDEN AB, Vargarda, SE;
Abstract
A position estimation unit () comprising a first transceiver device () and a processing unit () that is arranged to repeatedly calculate time-of-flight (TOF) for radio signals (x, x, x, x, x, x) sent pair-wise between two transceivers among the first transceiver device () and at least two other transceiver devices (); calculate possible positions for the transceiver devices (), which results in possible positions for each transceiver device (); and perform Multidimensional scaling (MDS) calculation in order to obtain relative positions of the transceiver devices () in a present coordinate system. After two initial MDS calculations, between every two consecutive MDS calculations, the processing unit () is arranged to repeatedly perform a processing procedure comprising translation, scaling and rotation of present coordinate system such that a corrected present coordinate system is acquired. The processing procedure is arranged to determine the corrected present coordinate system such that a smallest change for the relative positions of the transceiver devices () between the consecutive MDS calculations is obtained.