WO2009016784A1 - Navigation system - Google Patents

Navigation system Download PDF

Info

Publication number
WO2009016784A1
WO2009016784A1 PCT/JP2008/000824 JP2008000824W WO2009016784A1 WO 2009016784 A1 WO2009016784 A1 WO 2009016784A1 JP 2008000824 W JP2008000824 W JP 2008000824W WO 2009016784 A1 WO2009016784 A1 WO 2009016784A1
Authority
WO
WIPO (PCT)
Prior art keywords
section
time
current position
satellite constellation
positioning
Prior art date
Application number
PCT/JP2008/000824
Other languages
French (fr)
Japanese (ja)
Inventor
Yuichiro Uchigaki
Original Assignee
Mitsubishi Electric Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corporation filed Critical Mitsubishi Electric Corporation
Publication of WO2009016784A1 publication Critical patent/WO2009016784A1/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13—Receivers
    • G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
    • G01S19/26—Acquisition or tracking or demodulation of signals transmitted by the system involving a sensor measurement for aiding acquisition or tracking

Abstract

A navigation system comprises a current position/satellite constellation information backup section (11) for backing up information representing the current position and satellite constellation immediately before power-off, an ending time backup section (12) for backing up the time immediately before the power-off, an external time acquiring section (13) for acquiring the current time from an outside source, an elapsed time calculating section (14) for calculating the elapsed time from the backed up time immediately before the power-off to the current time, a GPS positioning section (15) for positioning the current position by using a GPS (Global Positioning System), an initial information setting section (16) for setting the initial information required to start the positioning to the GPS positioning section, and a control unit (17) for, if the elapsed time calculated by the elapsed time calculating section is smaller than a predetermined time, instructing the initial information setting section to set the information representing the current position and the satellite constellation backed up by the current position/satellite constellation information backup section to the GPS positioning section as the initial information.
PCT/JP2008/000824 2007-07-30 2008-03-31 Navigation system WO2009016784A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-197763 2007-07-30
JP2007197763A JP2010230309A (en) 2007-07-30 2007-07-30 Navigation system

Publications (1)

Publication Number Publication Date
WO2009016784A1 true WO2009016784A1 (en) 2009-02-05

Family

ID=40304029

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/000824 WO2009016784A1 (en) 2007-07-30 2008-03-31 Navigation system

Country Status (2)

Country Link
JP (1) JP2010230309A (en)
WO (1) WO2009016784A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130215060A1 (en) 2010-10-13 2013-08-22 Nec Casio Mobile Communications Ltd. Mobile terminal apparatus and display method for touch panel in mobile terminal apparatus
JP2015072192A (en) * 2013-10-03 2015-04-16 レノボ・シンガポール・プライベート・リミテッド Method for reducing positioning time of gps receiver, positioning system, and portable electronic apparatus
JP6511767B2 (en) * 2014-10-20 2019-05-15 株式会社デンソー Reverse run judging device
WO2023074242A1 (en) * 2021-10-29 2023-05-04 パナソニックＩｐマネジメント株式会社 Onboard device and onboard device autognosis method

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61198073A (en) * 1985-02-28 1986-09-02 Japan Radio Co Ltd Gps receiving device
JPH03269385A (en) * 1990-03-20 1991-11-29 Pioneer Electron Corp Gps receiver
JP2000508076A (en) * 1997-01-21 2000-06-27 モトローラ・インコーポレイテッド Improved real time clock device for fast acquisition of GSP signals
JP2001305209A (en) * 2000-04-24 2001-10-31 Mitsumi Electric Co Ltd Gps receiving device
JP2002014153A (en) * 2000-06-27 2002-01-18 Matsushita Electric Works Ltd Gps sensor, and gps data transmitting and receiving system
JP2002090441A (en) * 2000-09-20 2002-03-27 Clarion Co Ltd Gps receiving device
JP2003329758A (en) * 2002-05-13 2003-11-19 Matsushita Electric Ind Co Ltd Positioning satellite signal receiver
JP2005106720A (en) * 2003-10-01 2005-04-21 Alpine Electronics Inc Position detector using gps signal and position detection method
JP2005300427A (en) * 2004-04-14 2005-10-27 Sony Corp Receiving device, receiving method and receiving program

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61198073A (en) * 1985-02-28 1986-09-02 Japan Radio Co Ltd Gps receiving device
JPH03269385A (en) * 1990-03-20 1991-11-29 Pioneer Electron Corp Gps receiver
JP2000508076A (en) * 1997-01-21 2000-06-27 モトローラ・インコーポレイテッド Improved real time clock device for fast acquisition of GSP signals
JP2001305209A (en) * 2000-04-24 2001-10-31 Mitsumi Electric Co Ltd Gps receiving device
JP2002014153A (en) * 2000-06-27 2002-01-18 Matsushita Electric Works Ltd Gps sensor, and gps data transmitting and receiving system
JP2002090441A (en) * 2000-09-20 2002-03-27 Clarion Co Ltd Gps receiving device
JP2003329758A (en) * 2002-05-13 2003-11-19 Matsushita Electric Ind Co Ltd Positioning satellite signal receiver
JP2005106720A (en) * 2003-10-01 2005-04-21 Alpine Electronics Inc Position detector using gps signal and position detection method
JP2005300427A (en) * 2004-04-14 2005-10-27 Sony Corp Receiving device, receiving method and receiving program

Also Published As

Publication number Publication date
JP2010230309A (en) 2010-10-14

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