JPS5676074A - Obstacle detector - Google Patents

Obstacle detector

Info

Publication number
JPS5676074A
JPS5676074A JP15282479A JP15282479A JPS5676074A JP S5676074 A JPS5676074 A JP S5676074A JP 15282479 A JP15282479 A JP 15282479A JP 15282479 A JP15282479 A JP 15282479A JP S5676074 A JPS5676074 A JP S5676074A
Authority
JP
Japan
Prior art keywords
light
obstacle
outputs
receiving
transmitting
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.)
Granted
Application number
JP15282479A
Other languages
Japanese (ja)
Other versions
JPS5920115B2 (en
Inventor
Hiroshi Endo
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP54152824A priority Critical patent/JPS5920115B2/en
Publication of JPS5676074A publication Critical patent/JPS5676074A/en
Publication of JPS5920115B2 publication Critical patent/JPS5920115B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/88—Lidar systems specially adapted for specific applications
    • G01S17/93—Lidar systems specially adapted for specific applications for anti-collision purposes
    • G01S17/931—Lidar systems specially adapted for specific applications for anti-collision purposes of land vehicles

Abstract

PURPOSE:To detect a obstacle and to reduce the size of a transmitting and receiving antenna by a method wherein the obstacle is detected through an irradiation of a light frequency having a small energy density among a solar light spectrum. CONSTITUTION:When an information processing unit 11 outputs a transmitting signal f, it is entered in a light emitting element 12 and the element 12 outputs a modulated transmitting light g having a wave length in accordance with a light transmission factor in which the solar light energy density lowers and a transmission optical system 13 receives it and sends it forward a car. A light reflected from the obstacle in front of the car is received in a receiving optical system 14 and a receiving light h is made to pass through an optical filter 15, thus, the solar light being interrupted in an area outside its passing zone. A light receiving element 16 receives an output of the optical filter 15 and outputs a reflection signal i and the information processing unit 11 processes the reflection signal i to exactly detect the obstacle forward.
JP54152824A 1979-11-26 1979-11-26 Obstacle detection device Expired JPS5920115B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54152824A JPS5920115B2 (en) 1979-11-26 1979-11-26 Obstacle detection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54152824A JPS5920115B2 (en) 1979-11-26 1979-11-26 Obstacle detection device

Publications (2)

Publication Number Publication Date
JPS5676074A true JPS5676074A (en) 1981-06-23
JPS5920115B2 JPS5920115B2 (en) 1984-05-10

Family

ID=15548939

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54152824A Expired JPS5920115B2 (en) 1979-11-26 1979-11-26 Obstacle detection device

Country Status (1)

Country Link
JP (1) JPS5920115B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58203524A (en) * 1982-05-21 1983-11-28 Nissan Motor Co Ltd Controlling device of traveling of car
JP2005172820A (en) * 2003-12-05 2005-06-30 Robert Bosch Gmbh Photoelectric measuring device
JP2007316036A (en) * 2006-05-29 2007-12-06 Honda Motor Co Ltd Occupant detector for vehicle
JP2011055135A (en) * 2009-08-31 2011-03-17 Rohm Co Ltd Vehicle monitoring apparatus
JP2015210230A (en) * 2014-04-30 2015-11-24 リコー光学株式会社 Laser radar device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58203524A (en) * 1982-05-21 1983-11-28 Nissan Motor Co Ltd Controlling device of traveling of car
JP2005172820A (en) * 2003-12-05 2005-06-30 Robert Bosch Gmbh Photoelectric measuring device
JP2007316036A (en) * 2006-05-29 2007-12-06 Honda Motor Co Ltd Occupant detector for vehicle
JP2011055135A (en) * 2009-08-31 2011-03-17 Rohm Co Ltd Vehicle monitoring apparatus
JP2015210230A (en) * 2014-04-30 2015-11-24 リコー光学株式会社 Laser radar device

Also Published As

Publication number Publication date
JPS5920115B2 (en) 1984-05-10

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