JPS5473590A - Speed measuring system - Google Patents

Speed measuring system

Info

Publication number
JPS5473590A
JPS5473590A JP14095377A JP14095377A JPS5473590A JP S5473590 A JPS5473590 A JP S5473590A JP 14095377 A JP14095377 A JP 14095377A JP 14095377 A JP14095377 A JP 14095377A JP S5473590 A JPS5473590 A JP S5473590A
Authority
JP
Japan
Prior art keywords
alarm signal
judger
measured value
actually measured
signal
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
JP14095377A
Other languages
Japanese (ja)
Inventor
Yasuji Nakamura
Teruyoshi Kitahara
Hiromitsu Kato
Naoyuki Tojo
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 JP14095377A priority Critical patent/JPS5473590A/en
Publication of JPS5473590A publication Critical patent/JPS5473590A/en
Pending 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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/91—Radar or analogous systems specially adapted for specific applications for traffic control
    • G01S13/92—Radar or analogous systems specially adapted for specific applications for traffic control for velocity measurement

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Traffic Control Systems (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

PURPOSE:To enhance the reliability of the photographs having been taken by letting the camera be actuated by an alarm signal only when actually measured value is good thereby performing photographing of running cars. CONSTITUTION:A calibration signal generator 15 which generates calibration signals, a judger 25 and a gate circuit 28 which gates alarm signal with the output of the judger 25 are provided. The calibration signal 16 which is outputted from a signal generator 15 at each speed measurement of a running car 1 is inputted to a speed measuring instrument to perform speed conversion. The goodness or not of the actually measured value thereof is judged with the judger 25, by the output whereof the alarm signal is controlled in the gate circuit 28. Thereupon, a camera 14 is actuated by the alarm signal only when the actually measured value is good, whereby photographing of the running car 1 is performed.
JP14095377A 1977-11-24 1977-11-24 Speed measuring system Pending JPS5473590A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14095377A JPS5473590A (en) 1977-11-24 1977-11-24 Speed measuring system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14095377A JPS5473590A (en) 1977-11-24 1977-11-24 Speed measuring system

Publications (1)

Publication Number Publication Date
JPS5473590A true JPS5473590A (en) 1979-06-12

Family

ID=15280644

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14095377A Pending JPS5473590A (en) 1977-11-24 1977-11-24 Speed measuring system

Country Status (1)

Country Link
JP (1) JPS5473590A (en)

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