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Title:
LOCATION INFORMATION ACQUISITION SYSTEM AND METHOD FOR ACQUIRING LOCATION INFORMATION
Document Type and Number:
Japanese Patent JP2014211354
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To enable the acquisition of location information about a terminal device in a mobile body as a location on fixed ground coordinates.SOLUTION: Provided is a location information acquisition system for acquiring location information about a terminal device 102 in a mobile body 110, the system comprising: communication devices AP1-AP3 for communicating with the terminal device; a first information management device for managing location information about the communication devices and disposed so as to be able to communicate with the terminal device; and a second information management device for managing location information about the mobile body on fixed ground coordinates and disposed so as to be able to communicate with the terminal device. The terminal device acquires location information (x, y) about the terminal device on the fixed ground coordinates on the basis of device location information (u, v) acquired from the first information management device and mobile body location information (xp, yp) acquired from the second information management device.

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Inventors:
KAMISAKA NAOYUKI
SHIRAKI MITSUHIKO
Application Number:
JP2013087565A
Publication Date:
November 13, 2014
Filing Date:
April 18, 2013
Export Citation:
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Assignee:
HITACHI LTD
International Classes:
G01S5/02; H04W64/00
Domestic Patent References:
JP2012098077A2012-05-24
JP2011254367A2011-12-15
JP2000298034A2000-10-24
JP2010264869A2010-11-25
JP2005244401A2005-09-08
JP2012142911A2012-07-26
JP2010028369A2010-02-04
JP2002330463A2002-11-15
JP2006013670A2006-01-12
JP2008227717A2008-09-25
Attorney, Agent or Firm:
Patent business corporation Wil photograph international patent firm



 
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