Search International and National Patent Collections

1. (WO2018181053) MARKER SYSTEM

Pub. No.:    WO/2018/181053    International Application No.:    PCT/JP2018/011871
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Sat Mar 24 00:59:59 CET 2018
IPC: G08G 1/00
G01C 21/28
G05D 1/02
G08G 1/042
Applicants: AICHI STEEL CORPORATION
愛知製鋼株式会社
Inventors: YAMAMOTO Michiharu
山本 道治
NAGAO Tomohiko
長尾 知彦
AOYAMA Hitoshi
青山 均
Title: MARKER SYSTEM
Abstract:
Provided is a marker system (1), comprising: a sensor array (21) for detecting magnetic markers installed atop a roadway; a tag reader (34) for acquiring marker position information, which represents the installation positions of the magnetic markers; an IMU (22) for estimating the relative vehicle position by inertial navigation; and a control unit (32) for executing a computation process to identify the vehicle position. The marker system (1) enables a consistent identification, independent of the surrounding environment, of the self-position by identifying the vehicle position on the basis of the installation positions of the detected magnetic markers and by identifying the vehicle position following the passage of the vehicle over the magnetic markers on the basis of the relative vehicle position estimated by the IMU (22).