JPS5473590A - Speed measuring system - Google Patents
Speed measuring systemInfo
- 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
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.
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) |
-
1977
- 1977-11-24 JP JP14095377A patent/JPS5473590A/en active Pending
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