JPS57143614A - Curve run controlling system using laser beam - Google Patents

Curve run controlling system using laser beam

Info

Publication number
JPS57143614A
JPS57143614A JP56028889A JP2888981A JPS57143614A JP S57143614 A JPS57143614 A JP S57143614A JP 56028889 A JP56028889 A JP 56028889A JP 2888981 A JP2888981 A JP 2888981A JP S57143614 A JPS57143614 A JP S57143614A
Authority
JP
Japan
Prior art keywords
attitude angle
laser beam
vehicle
value
photodetector
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
JP56028889A
Other languages
Japanese (ja)
Inventor
Tomiya Tanno
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.)
Komatsu Ltd
Original Assignee
Komatsu 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 Komatsu Ltd filed Critical Komatsu Ltd
Priority to JP56028889A priority Critical patent/JPS57143614A/en
Publication of JPS57143614A publication Critical patent/JPS57143614A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
    • G05D1/02—Control of position or course in two dimensions
    • G05D1/021—Control of position or course in two dimensions specially adapted to land vehicles
    • G05D1/0231—Control of position or course in two dimensions specially adapted to land vehicles using optical position detecting means
    • G05D1/0234—Control of position or course in two dimensions specially adapted to land vehicles using optical position detecting means using optical markers or beacons
    • G05D1/0236—Control of position or course in two dimensions specially adapted to land vehicles using optical position detecting means using optical markers or beacons in combination with a laser

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Electromagnetism (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)

Abstract

PURPOSE:To perform optional run control with simple constitution by arranging two photodetectors at a bisymmetric point on a car body so that their symmetric point is in the center of the car body, and performing a curve run on the basis of a difference in laser beam photodetection time between those photodetectors. CONSTITUTION:A laser projector 100 while rotating as shown by an arrow Ar at a prescribed period projects a laser beam LB continuously. In the center O of a vehicle 1, an angle between a direction A perpendicular to the direction of the laser beam LB and the moving direction H of the vehicle 1 is regarded as an attitude angle theta. An output pulse P5 from the photodetector 5 of the vehicle 1 and an output pulse P6 from the photodetector 6 are applied to a signal processor 11, which detects which of the pulses P5 and P6 is generated first, thereby determining the sign of the value of the attitude angle. Then, a time difference in generation timing between the pulses P5 and P6 is measured to find the value of the attitude angle, which is applied to a steering controller 12. On the basis of the value of the attitude angle, the controller 12 steers the front wheels, and thus the running direction of the vehicle 1 is set at the attitude angle theta.
JP56028889A 1981-02-27 1981-02-27 Curve run controlling system using laser beam Pending JPS57143614A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56028889A JPS57143614A (en) 1981-02-27 1981-02-27 Curve run controlling system using laser beam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56028889A JPS57143614A (en) 1981-02-27 1981-02-27 Curve run controlling system using laser beam

Publications (1)

Publication Number Publication Date
JPS57143614A true JPS57143614A (en) 1982-09-04

Family

ID=12260958

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56028889A Pending JPS57143614A (en) 1981-02-27 1981-02-27 Curve run controlling system using laser beam

Country Status (1)

Country Link
JP (1) JPS57143614A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05223700A (en) * 1990-03-01 1993-08-31 Technischer Ueberwachungs Verein Bayern Ev Testing method and apparatus for results of car accident

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05223700A (en) * 1990-03-01 1993-08-31 Technischer Ueberwachungs Verein Bayern Ev Testing method and apparatus for results of car accident

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