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1. WO2009004749 - NAVIGATION SYSTEM

Publication Number WO/2009/004749
Publication Date 08.01.2009
International Application No. PCT/JP2008/000632
International Filing Date 18.03.2008
IPC
G01C 21/00 2006.01
GPHYSICS
01MEASURING; TESTING
CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
21Navigation; Navigational instruments not provided for in groups G01C1/-G01C19/104
G01C 19/00 2006.01
GPHYSICS
01MEASURING; TESTING
CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
19Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
G08G 1/0969 2006.01
GPHYSICS
08SIGNALLING
GTRAFFIC CONTROL SYSTEMS
1Traffic control systems for road vehicles
09Arrangements for giving variable traffic instructions
0962having an indicator mounted inside the vehicle, e.g. giving voice messages
0968Systems involving transmission of navigation instructions to the vehicle
0969having a display in the form of a map
G09B 29/00 2006.01
GPHYSICS
09EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
BEDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
29Maps; Plans; Charts; Diagrams, e.g. route diagrams
G09B 29/10 2006.01
GPHYSICS
09EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
BEDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
29Maps; Plans; Charts; Diagrams, e.g. route diagrams
10Map spot or co-ordinate position indicators; Map-reading aids
CPC
G01C 21/26
GPHYSICS
01MEASURING; TESTING
CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
21Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
26specially adapted for navigation in a road network
G01C 25/005
GPHYSICS
01MEASURING; TESTING
CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
25Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass
005initial alignment, calibration or starting-up of inertial devices
G09B 29/102
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
BEDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
29Maps; Plans; Charts; Diagrams, e.g. route diagram
10Map spot or coordinate position indicators; Map reading aids
102using electrical means
Applicants
  • 三菱電機株式会社 Mitsubishi Electric Corporation [JP]/[JP] (AllExceptUS)
  • 門出泰裕 MONDE, Yasuhiro [JP]/[JP] (UsOnly)
  • 速水勝朗 HAYAMI, Katsuro [JP]/[JP] (UsOnly)
  • 藤井将智 FUJII, Masatoshi [JP]/[JP] (UsOnly)
  • 前田淳志 MAEDA, Atsushi [JP]/[JP] (UsOnly)
Inventors
  • 門出泰裕 MONDE, Yasuhiro
  • 速水勝朗 HAYAMI, Katsuro
  • 藤井将智 FUJII, Masatoshi
  • 前田淳志 MAEDA, Atsushi
Agents
  • 田澤英昭 TAZAWA, Hideaki
Priority Data
2007-17651204.07.2007JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) NAVIGATION SYSTEM
(FR) SYSTÈME DE NAVIGATION
(JA) ナビゲーションシステム
Abstract
(EN)
A navigation system has an angular velocity sensor (1) for detecting a variation in the direction of advancement of a vehicle, a vehicle direction calculation section (13) for calculating the direction of the vehicle based on angular velocity sensor information obtained from the angular velocity sensor, a vehicle-mounted camera (2) for capturing an image around the vehicle, an image recognition section (19) for recognizing the image obtained from the vehicle-mounted camera, and an offset voltage correction section (21) for performing a drift correction of the angular velocity sensor according to an angular error between the direction of the vehicle calculated by the vehicle direction calculation section and the direction of the vehicle obtained from a white line of a road recognized by the image recognition section.
(FR)
Un système de navigation comprend un capteur de vitesse angulaire (1) permettant de détecter une variation dans la direction d'avance d'un véhicule, une section de calcul de la direction du véhicule (13) destinée à calculer la direction du véhicule sur la base des informations du capteur de vitesse angulaire provenant du capteur de vitesse angulaire, une caméra (2) montée sur le véhicule, permettant de capturer une image autour du véhicule, une section de reconnaissance d'image (19) destinée à reconnaître l'image obtenue par la caméra montée sur le véhicule, et une section de correction de tension de décalage (21) permettant d'effectuer une correction de la dérive du capteur de vitesse angulaire en fonction d'une erreur angulaire entre la direction du véhicule calculée par la section de calcul de la direction du véhicule et la direction du véhicule obtenue à partir d'une ligne blanche d'une route reconnue par la section de reconnaissance d'image.
(JA)
 車両の進行方向の変化を検出する角速度センサ1と、角速度センサから得られる角速度センサ情報に基づき車両方位を算出する車両方位演算部13と、車両の周囲を撮影する車載カメラ2と、車載カメラから得られた画像を認識する画像認識部19と、車両方位演算部で算出された車両方位と、画像認識部で認識された道路の白線から求めた車両方位との角度誤差に応じて角速度センサのドリフト補正を行うオフセット電圧補正部21を備えている。
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