JPS5562308A - Direction indicating device - Google Patents

Direction indicating device

Info

Publication number
JPS5562308A
JPS5562308A JP13599378A JP13599378A JPS5562308A JP S5562308 A JPS5562308 A JP S5562308A JP 13599378 A JP13599378 A JP 13599378A JP 13599378 A JP13599378 A JP 13599378A JP S5562308 A JPS5562308 A JP S5562308A
Authority
JP
Japan
Prior art keywords
signals
decided
output
detection
plus
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
JP13599378A
Other languages
Japanese (ja)
Inventor
Hisatsugu Ito
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Corp filed Critical Mitsubishi Electric Corp
Priority to JP13599378A priority Critical patent/JPS5562308A/en
Publication of JPS5562308A publication Critical patent/JPS5562308A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To enhance the accuracy, the visual recognition properties and the reliability each by carrying out an electronic process for the detection and display of the earth magnetism.
CONSTITUTION: Detection axes x and y nearly orthogonal to each other are prepared. And output ex and ey corresponding to the detection axis direction component of external magnetic field H are delivered from magnetic sensor 1 and then amplified 21 and 22 to obtain DC signals Vx and Vy. Then the absolute value is obtained 71 and 76 for signals Vx and Vy, and at the same time the plus and minus is decided 72 and 77 for signals Vx and Vy. Then coefficient 1/α is multi plied 73 and 78 by the absolute value output, and the scale is compared and decided 74 and 79 between multiplication output signals. Furthermore, the direction is decided 8 based on the combination of the plus-minus decision output signal and the comparison decision output signals. And based on this decision output, the lighting control is carried out for direction display elements 31W38 of the four cardinal points.
COPYRIGHT: (C)1980,JPO&Japio
JP13599378A 1978-11-02 1978-11-02 Direction indicating device Pending JPS5562308A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13599378A JPS5562308A (en) 1978-11-02 1978-11-02 Direction indicating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13599378A JPS5562308A (en) 1978-11-02 1978-11-02 Direction indicating device

Publications (1)

Publication Number Publication Date
JPS5562308A true JPS5562308A (en) 1980-05-10

Family

ID=15164679

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13599378A Pending JPS5562308A (en) 1978-11-02 1978-11-02 Direction indicating device

Country Status (1)

Country Link
JP (1) JPS5562308A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56151305A (en) * 1980-04-25 1981-11-24 Nippon Soken Inc Direction detecting device
JPS56172710U (en) * 1980-05-23 1981-12-19
JPS58109809A (en) * 1981-12-23 1983-06-30 Tohoku Metal Ind Ltd Azimuth detector
JPS5999310A (en) * 1982-11-30 1984-06-08 Nippon Seiki Co Ltd Azimuth meter

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56151305A (en) * 1980-04-25 1981-11-24 Nippon Soken Inc Direction detecting device
JPS56172710U (en) * 1980-05-23 1981-12-19
JPS6035851Y2 (en) * 1980-05-23 1985-10-24 株式会社日本自動車部品総合研究所 Direction detection device
JPS58109809A (en) * 1981-12-23 1983-06-30 Tohoku Metal Ind Ltd Azimuth detector
JPS5999310A (en) * 1982-11-30 1984-06-08 Nippon Seiki Co Ltd Azimuth meter

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