JPS646721A - Detection system for automobile current position - Google Patents

Detection system for automobile current position

Info

Publication number
JPS646721A
JPS646721A JP16072887A JP16072887A JPS646721A JP S646721 A JPS646721 A JP S646721A JP 16072887 A JP16072887 A JP 16072887A JP 16072887 A JP16072887 A JP 16072887A JP S646721 A JPS646721 A JP S646721A
Authority
JP
Japan
Prior art keywords
data
deltap
current position
detection
autonomous
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
JP16072887A
Other languages
Japanese (ja)
Inventor
Yasuhisa Hiroshima
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.)
Daihatsu Motor Co Ltd
Original Assignee
Daihatsu Motor Co Ltd
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 Daihatsu Motor Co Ltd filed Critical Daihatsu Motor Co Ltd
Priority to JP16072887A priority Critical patent/JPS646721A/en
Publication of JPS646721A publication Critical patent/JPS646721A/en
Pending legal-status Critical Current

Links

Landscapes

  • Navigation (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)

Abstract

PURPOSE:To always enable accurate detection of the current position, by combining detection of a position with a Loran C receiver and detection of a position with an autonomous navigator to utilize strong points of radio navigation and autonomous navigation methods, eliminating short coming thereof. CONSTITUTION:A microcomputer 2 inputs an input of a position data Pn from an autonomous navigator 8 and a position data Pc from a Loran C receiver 4. Then, the computer 2 calculates a difference DELTAP between both the data Pn and Pc. Then, the computer 2 checks whether the difference DELTAP is smaller than a specified reference value or not. When DELTAP<=epsilon, the data Pc can be deter mined to be a relatively correct value, and hence, the data Pc is provided to the device 8 as initial position data to correct the position. On the other hand, when not DELTAP<=epsilon, the data Pc is supposed to be a false position data due to reflected radio wave and, then, ignored. The data Pn is adopted as current position of an automobile.
JP16072887A 1987-06-26 1987-06-26 Detection system for automobile current position Pending JPS646721A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16072887A JPS646721A (en) 1987-06-26 1987-06-26 Detection system for automobile current position

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16072887A JPS646721A (en) 1987-06-26 1987-06-26 Detection system for automobile current position

Publications (1)

Publication Number Publication Date
JPS646721A true JPS646721A (en) 1989-01-11

Family

ID=15721178

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16072887A Pending JPS646721A (en) 1987-06-26 1987-06-26 Detection system for automobile current position

Country Status (1)

Country Link
JP (1) JPS646721A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1661735A1 (en) 2004-11-25 2006-05-31 Sumtiomo Rubber Industries Ltd Low noise tire support ring
JP2016138847A (en) * 2015-01-29 2016-08-04 アルプス電気株式会社 Position detection system
WO2017094350A1 (en) * 2015-12-03 2017-06-08 アルプス電気株式会社 Position detection system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63151813A (en) * 1986-12-16 1988-06-24 Matsushita Electric Ind Co Ltd Apparatus for detecting position of moving body

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63151813A (en) * 1986-12-16 1988-06-24 Matsushita Electric Ind Co Ltd Apparatus for detecting position of moving body

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1661735A1 (en) 2004-11-25 2006-05-31 Sumtiomo Rubber Industries Ltd Low noise tire support ring
JP2016138847A (en) * 2015-01-29 2016-08-04 アルプス電気株式会社 Position detection system
WO2017094350A1 (en) * 2015-12-03 2017-06-08 アルプス電気株式会社 Position detection system
JPWO2017094350A1 (en) * 2015-12-03 2018-07-12 アルプス電気株式会社 Position detection system
US10794706B2 (en) 2015-12-03 2020-10-06 Alps Alpine Co., Ltd. Position detection system

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