JPS6435289A - Position recognition apparatus - Google Patents

Position recognition apparatus

Info

Publication number
JPS6435289A
JPS6435289A JP18881387A JP18881387A JPS6435289A JP S6435289 A JPS6435289 A JP S6435289A JP 18881387 A JP18881387 A JP 18881387A JP 18881387 A JP18881387 A JP 18881387A JP S6435289 A JPS6435289 A JP S6435289A
Authority
JP
Japan
Prior art keywords
site
present position
propagation time
recognition apparatus
deltatn
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP18881387A
Other languages
Japanese (ja)
Inventor
Tomoo Ueda
Michihiko Harada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NIPPON PRECISION KK
Original Assignee
NIPPON PRECISION KK
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 NIPPON PRECISION KK filed Critical NIPPON PRECISION KK
Priority to JP18881387A priority Critical patent/JPS6435289A/en
Publication of JPS6435289A publication Critical patent/JPS6435289A/en
Pending legal-status Critical Current

Links

Landscapes

  • Position Fixing By Use Of Radio Waves (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

PURPOSE:To make position recognition apparatus smaller sized and less- expensive with a simpler circuit constitution, by calculating a present position based on propagation time difference of radiowave, position of each transmission site and a reference position. CONSTITUTION:With receiving radiowaves from the transmission sites; PH and PN, propagation time difference, DELTAtH, DELTAtN, between the received time at the present position P2 after transmitted from each site and the received time at a reference position P1 are detected, respectively. From the propagation time differences, DELTAtH, DELTAtN, distance, RH+CDELTAtH, from the site PH to the present position P2 and distance RN+CDELTAtN, from the site PN to the present position P2 are obtained and consequently, coordinates of the present position P2 is calculated as the point having specific distances from the both ends; PH and PN, of a base line of a triangle.
JP18881387A 1987-07-30 1987-07-30 Position recognition apparatus Pending JPS6435289A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18881387A JPS6435289A (en) 1987-07-30 1987-07-30 Position recognition apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18881387A JPS6435289A (en) 1987-07-30 1987-07-30 Position recognition apparatus

Publications (1)

Publication Number Publication Date
JPS6435289A true JPS6435289A (en) 1989-02-06

Family

ID=16230261

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18881387A Pending JPS6435289A (en) 1987-07-30 1987-07-30 Position recognition apparatus

Country Status (1)

Country Link
JP (1) JPS6435289A (en)

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