公开(公告)号：US20190004168A1

公开(公告)日：2019-01-03

申请号：US15769177

申请日：2016-10-17

Applicant: VALEO COMFORT AND DRIVING ASSISTANCE

Inventor： Joel Pature ,  Eric Leconte ,  Laurent Petel

IPC: G01S13/74 ,  G01S11/06 ,  G01S13/93 ,  G01S13/87

Abstract: The invention relates to a method for evaluating the distance (d) between an identifier (20) fitted with a first wireless communication module (24) and a vehicle (10) fitted with a second wireless communication module (14), including the following steps: establishing a wireless connection (L) between the first wireless communication module (24) and the second wireless communication module (14); estimating said distance (d) on the basis of a propagation time of the electromagnetic signals involved in the N wireless connection established (L); when the identifier (20) comes within the range of a signal (S) transmitted by the vehicle (10), evaluating said distance (d) by means of a measurement, by the identifier (20), of the strength of said transmitted signal (S). An associated electronic unit and identifier are also described.

公开(公告)号：US10578731B2

公开(公告)日：2020-03-03

申请号：US15769177

申请日：2016-10-17

Applicant: VALEO COMFORT AND DRIVING ASSISTANCE

Inventor： Joel Pature ,  Eric Leconte ,  Laurent Petel

IPC: G01S13/74 ,  G01S11/06 ,  G01S13/93 ,  G01S13/87 ,  G01S13/931

Abstract: The invention relates to a method for evaluating the distance (d) between an identifier (20) fitted with a first wireless communication module (24) and a vehicle (10) fitted with a second wireless communication module (14), including the following steps: establishing a wireless connection (L) between the first wireless communication module (24) and the second wireless communication module (14); estimating said distance (d) on the basis of a propagation time of the electromagnetic signals involved in the wireless connection established (L); when the identifier (20) comes within the range of a signal (S) transmitted by the vehicle (10), evaluating said distance (d) by means of a measurement, by the identifier (20), of the strength of said transmitted signal (S). An associated electronic unit and identifier are also described.