Estimate position of own car to within
5 mm at any time, anywhere.

Autonomous Driving

High-precision, highly reliable autonomous driving
achieved by GMPS (Magnetic Positioning System)

Aichi Steel's GMPS (Global Magnetic Positioning System) is a magnetic vehicle position detection system that detects weak magnetic signals emitted by magnetic markers installed on the ground with an ultra-sensitive magnetic sensor, "MI Sensor", mounted on the sensor unit, estimates the position of the vehicle with high accuracy, and supports advanced vehicle control such as automated driving.

In tunnels and underground where GPS does not reach, and in situations such as snow accumulation, fog, and backlight where optical devices struggle, the position of the car is identified at +/-5 mm or less to support safe autonomous driving.

GMPS Technology Principle of Operation

An autonomous driving support system that estimates the position of a car with high accuracy from the weak magnetic force of a magnetic marker laid along a lane using the MI sensor module mounted on the bottom of the car.

The position of the car (X-Y coordinates) is accurately identified by the signals from the magnetic markers with RF-ID on the road surface.
It tracks at speeds of up to 200km/hour.

GMPSテクノロジーの概要図

Applications Field of activity

GMPS can be used in a variety of environments with a single system.

Field map
01 Unmanned Cars at Airports and Harbors
Unmanned Cars at Airports and Harbors

Autonomous AGV operation in airports and harbors is possible by placing markers in a grid shape.

02 Light Rail Transit
Light Rail Transit

Lower costs can be achieved by switching subway and LRT to buses.

03 High-speed bus transportation system

Fully automatic operation is also easy by introducing from docking and by-passing assist.

04 Driving in high-rise commercial districts
Driving in high-rise commercial districts

Even in a state where GPS satellites cannot be supplemented or in built-up streets where GPS multipathing occurs, accurate automotive positions can be identified from magnetic markers.

05 Valet Parking in Underground Parking
Valet Parking in Underground Parking

Valet parking becomes easier even in indoor parking lots where GPS signals do not reach. The vehicle moves tracing the specified ID number of the magnetic markers.

06 Driving under snow or in the mist
Driving under snow or in the mist

Magnetic markers can reliably locate your car even in environments with snow or fallen leaves that make it impossible to read white lines. You can also identify your car's position in mist where Lidar doesn't work precisely.

07 Transport within factory complexes
Transport within factory complexes

This facilitates the automatic operation of distribution vehicles on the factory premises.

08 Running in tunnels or under elevated tracks
Running in tunnels or under elevated tracks

Accurate automotive position estimation is possible even in tunnels or under elevated tracks where GPS signals cannot be obtained.

Introductory video Video Introduction

Introduction to Aichi Steel's Automated Driving Support System
GMPS-AICHI STEEL's
autonomous driving support system
GMPS Demonstration-Centrair
Technology Demonstration of Automated
Bus Operation on BRT in 2021
GMPS Demonstration-Centrair
GMPS Demonstration Test of Autonomous Drive
-Chubu International Airport Japan-
GMPS Demonstration-Centrair
GMPS Demonstration Test of Autonomous Drive
-by Green Slow Mobility-

Demonstration Demonstration experiment

The effectiveness of GMPS has been confirmed by conducting demonstration tests on public roads around the country with various partners, including the Ministry of Land, Infrastructure and Transport.

List of demonstration tests

  • #28
    November 2021 2021 Michi-no-Eki Takahata Takahata Town, Yamagata Prefecture [Sponsor] Ministry of Land, Infrastructure, Transport and Tourism YouTube Video

    Low speed driving by Green Slow Mobility.

  • #27
    November 2021 Chubu International Airport Island Tokoname City, Aichi Prefecture [Sponsor] Aichi Prefecture YouTube Video

    Installing magnetic markers every 10m on straight road.

  • #26
    September 2021 Kesennuma Line BRT Yanaizu- Rikuzen Yokoyama Station Tome City, Miyagi Prefecture [Sponsor] JR East YouTube Video

    Passing each large bus on roads exclusively for buses.

  • #25
    February 2021 Yokohama City, Kanagawa Prefecture [Sponsor] Ministry of Economy, Trade and Industry

    Sustainable transport services in suburban residential areas in the Hill area of the Tokyo metropolitan area.

  • #24
    February 2021 Kesennuma Line BRT Yanaizu- Rikuzen Yokoyama Station Tome City, Miyagi Prefecture [Sponsor] JR East

    Large buses run steadily at a maximum speed of 60km/h.

  • #23
    February 2021 Hamamatsu SA and Enshu Morimachi PA Hamamatsu City and Enshu Mori Town, Shizuoka Prefecture [Sponsor] Ministry of Economy, Trade and Industry YouTube Video

    Track-following unmanned fleet running on highway SA/PA and ramp-ways.

  • #22
    December 2020 Chubu International Airport Island Tokoname City, Aichi Prefecture [Sponsor] Aichi Prefecture

    Drive level 4 through the restricted area

  • #21
    December 2020 Hitachi City, Ibaraki Prefecture [Sponsor] Ministry of Economy, Trade and Industry

    Implementation of Automated Drive Buses on BRT Routes.

  • #20
    November 2020 Kitakyushu City, Fukuoka Prefecture [Sponsor] Ministry of Economy, Trade and Industry

    Travel below elevated roads (about 1.3km) where GPS is difficult to reach between airports and railway stations.

  • #19
    October 2020 Chubu International Airport Island. Tokoname City [Sponsor] Aichi Prefecture YouTube Video

    Running on railway bridges or terminal buildings where GPS cannot reach

  • #18
    August 2020 Haneda Airport, Ota-ku, Tokyo [Sponsor] Cabinet Office

    "Steady driving at a maximum speed of 60km/h while performing precision docking control, lane change, and right/left turn"

  • #17
    July 2020 Otsu City, Shiga Prefecture [Sponsor] Ministry of Economy, Trade and Industry

    Creation of new transport axes and livelihoods at urban centers.

  • #16
    July 2020 Sanda City, Hyogo [Sponsor] Ministry of Economy, Trade and Industry

    Ensuring Intra-Regional Transportation to Improve the Quality of Life in Suburban Residential Areas.

  • #15
    June 2020 Kashiwa Campus, Tokyo University-Kashiwanoha Campus Station Kawashiwa City, Chiba Prefecture [Sponsor] Kashiwa ITS Promotion Council

    Driving on public roads that GPS cannot reach due to street trees

  • #14
    Feburary 2020 Kesennuma Line, Tome City, Miyagi Prefecture BRT Yanaizu-Rikuzen Yokoyama station [Sponsor] JR East

    Large buses run steadily at a maximum speed of 60km/h

  • #13
    December 2019 Shibukawa City, Gunma Prefecture [Sponsor] Gunma University

    "Traveling while performing roadside-to-vehicle communication in which the vehicle receives signal information, etc. from magnetic markers installed on the road surface"

  • #12
    November 2019 Onagawa Town, Oshika County, Miyagi Prefecture [Sponsor] Miyagi Prefecture

    Returning ultra-compact shared electric vehicles to the station by unmanned driving

  • #11
    June 2019 "Roadside Station Kosmall Taiki" in Taiki Town, Hokkaido [Sponsor] Ministry of Land, Infrastructure, Transport and Tourism

    Drive in snow where reliability of on-board cameras is not sufficient

  • #10
    February 2019 Tama New Town, Tama City, Tokyo [Sponsor] Tokyo Metropolitan Government

    Driving on public roads that GPS cannot reach due to pedestrian bridges and street trees.

  • #9
    January 2019 In an airport restricted area, 4 airports including Haneda airport [Sponsor] Ministry of Land, Infrastructure, Transport and Tourism

    Run below the boarding bridge where GPS does not reach in airport restricted areas.

  • #8
    January 2019 BRT Takekoma Station, Ofunato Line, Rikuzentakata City, Iwate Prefecture [Sponsor] JR East 2019 Special Feature of the Aichi Steel Report

    Carried out alternate passage with oncoming vehicles on roads exclusively for buses and precision docking control.

  • #7
    November 2018 Roadside Station Minami Alps Mura Hase, Ina City, Nagano Prefecture [Sponsor] Ministry of Land, Infrastructure, Transport and Tourism

    Traveling in tunnels where GPS signals do not reach or narrow dog-legs with a road width of 4.5m

  • #6
    October 2018 Part of Hitachi BRT route in Hitachi City, Ibaraki [Sponsor] Ministry of Land, Infrastructure, Transport and Tourism and Ministry of Economy, Trade and Industry

    Exclusive bus roads and public roads using abandoned rail lines

  • #5
    April 2018 Kitakyushu Scientific Research City, Kitakyushu City, Fukuoka Prefecture [Sponsor] Kitakyushu City

    Steady running at a maximum speed of 40km/h and control adjustment at the intersection left-turn.

  • #4
    February 2018 Roadside Station Minami Alps Mura Hase, Ina City, Nagano Prefecture [Sponsor] Ministry of Land, Infrastructure, Transport and Tourism

    Traveling in tunnels where GPS signals do not reach or narrow dog-legs with a road width of 4.5m

  • #3
    December 2017 "Roadside Station Kosmall Taiki" in Taiki Town, Hokkaido [Sponsor] Ministry of Land, Infrastructure, Transport and Tourism 2019 Special Feature of the Aichi Steel Report

    Drive in snow where reliability of on-board cameras is not sufficient

  • #2
    December 2017 Ginowan City, Okinawa Prefecture, Kita-Nakagusuku Village, Okinawa Prefecture [Sponsor] Cabinet Office

    "Implemented" "precision docking" "to accurately align with and stop at the bus stop."

  • #1
    November 2017 Roadside Station “Okueigenji Keiryu no Sato”in Higashi-Omi City, Shiga Prefecture [Sponsor] Ministry of Land, Infrastructure, Transport and Tourism

    Drive in mountainous areas where GPS signals do not reach.

Introductory Leaflet

PDF Download
(2.26MB)