Title:
GNSS車両ナビゲーションのための慣性センサにより支援された進行方向および測位
Document Type and Number:
Japanese Patent JP2014507628
Kind Code:
A
Abstract:
An apparatus and method for providing an improved heading estimate of a mobile device in a vehicle is presented. First, the mobile device determines if it is mounted in a cradle attached to the vehicle; if so, inertia sensor data may be valid. While in a mounted stated, the mobile device determines whether it has been rotated in the cradle; if so, inertia sensor data may no longer be reliable and a recalibration to determine a new relative orientation between the vehicle and the mobile device is needed. If the mobile device is mounted and not recently rotated, heading data from multiple sensors (e.g., GPS, gyroscope, accelerometer) may be computed and combined to form the improved heading estimate. This improved heading estimate may be used to form an improved velocity estimate. The improved heading estimate may also be used to compute a bias to correct a gyroscope.
Inventors:
Kuzonpo, Joseph
Opschau, Gatome Earl.
Kuhokula, Kumar Garraf
Biaks, Zoltan F.
Relay, Wyatt Tea.
Opschau, Gatome Earl.
Kuhokula, Kumar Garraf
Biaks, Zoltan F.
Relay, Wyatt Tea.
Application Number:
JP2013542231A
Publication Date:
March 27, 2014
Filing Date:
December 02, 2011
Export Citation:
Assignee:
QUALCOMM INCORPORATED
International Classes:
G01C21/28; G01C19/00; G01S19/52; G01S19/53
Domestic Patent References:
| JPH1172336A | 1999-03-16 | |||
| JP2010271086A | 2010-12-02 | |||
| JP2001503519A | 2001-03-13 | |||
| JP2004239643A | 2004-08-26 |
Attorney, Agent or Firm:
Kurata Masatoshi
Yoshihiro Fukuhara
Makoto Nakamura
Nobuhisa Nogawa
Toshio Shirane
Takashi Mine
Kocho Chojiro
Naoki Kono
Katsu Sunagawa
Morisezo Iseki
Takao Ako
Tadashi Inoue
Tatsushi Sato
Takashi Okada
Mihoko Horiuchi
Takenori Masanori
Yoshihiro Fukuhara
Makoto Nakamura
Nobuhisa Nogawa
Toshio Shirane
Takashi Mine
Kocho Chojiro
Naoki Kono
Katsu Sunagawa
Morisezo Iseki
Takao Ako
Tadashi Inoue
Tatsushi Sato
Takashi Okada
Mihoko Horiuchi
Takenori Masanori