POSITIONING SYSTEM, POSITIONING METHOD, AND PROGRAM THEREOF

Title:

POSITIONING SYSTEM, POSITIONING METHOD, AND PROGRAM THEREOF

Document Type and Number:

WIPO Patent Application WO/2005/086375

Kind Code:

A1

Abstract:

A positioning system includes an illumination device, a terminal, and a positioning server. The illumination device transmits identification information. The terminal transmits the identification information received from the illumination device, to the positioning server. The positioning server uses the identification information received from the terminal, thereby searching a illumination installation position database registered in advance so as to identify the terminal position. This eliminates power supply for positioning infra and facilitates attachment to a ceiling, thereby realizing the positioning infra at a low cost.

Inventors:

ISHII KENICHI (JP)
MATSUDA JUNICHI (JP)

Application Number:

PCT/JP2005/003595

Publication Date:

September 15, 2005

Filing Date:

March 03, 2005

Export Citation:

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Assignee:

NEC CORP (JP)
ISHII KENICHI (JP)
MATSUDA JUNICHI (JP)

International Classes:

G01S1/70; G01S5/00; G01S5/16; H04B7/26; H04B10/11; H04B10/116; H04B10/118; H04W52/00; H04W64/00; (IPC1-7): H04B7/26; G01S5/14; G01S5/16

Foreign References:

JPH08279061A	1996-10-22
JPH098734A	1997-01-10
US6175308B1	2001-01-16
US5917425A	1999-06-29

Other References: