JPS57194360A - Measuring method for vehicle traveling data - Google Patents
Measuring method for vehicle traveling dataInfo
- Publication number
- JPS57194360A JPS57194360A JP8064781A JP8064781A JPS57194360A JP S57194360 A JPS57194360 A JP S57194360A JP 8064781 A JP8064781 A JP 8064781A JP 8064781 A JP8064781 A JP 8064781A JP S57194360 A JPS57194360 A JP S57194360A
- Authority
- JP
- Japan
- Prior art keywords
- posts
- vehicle
- mileage
- directions
- road
- 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
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/64—Devices characterised by the determination of the time taken to traverse a fixed distance
- G01P3/66—Devices characterised by the determination of the time taken to traverse a fixed distance using electric or magnetic means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Navigation (AREA)
Abstract
PURPOSE:To detect a mileage, vehicle position average vehicle speed, etc. on a vehicle by using sign posts which are installed at equal intervals on a road side and emit signals of different frequencies depending upon the directions of roads. CONSTITUTION:Sign posts 1a-1n installed at equal intervals on the road side of a road transmit signals fn of different frequencies depending upon the directions of the road, that is, the azimuth where a vehicle travels. In a machine 2 loaded on the vehicle, the signals from the posts are received and the passage of the posts is known from the presence of absence of any carrier component by a carrier detecting part 6 and a sign post decision part 8. A frequency discriminating part 7 and a direction deciding part 9 determine directions from the frequencies of the posts. An arithmetic part 10 calculates mileage from the times of the passage through the posts, average speeds from the time when the vehicle passes the posts and said mileage and vehicle positions from the traveling direction and said mileage, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8064781A JPS57194360A (en) | 1981-05-26 | 1981-05-26 | Measuring method for vehicle traveling data |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8064781A JPS57194360A (en) | 1981-05-26 | 1981-05-26 | Measuring method for vehicle traveling data |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57194360A true JPS57194360A (en) | 1982-11-29 |
Family
ID=13724152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8064781A Pending JPS57194360A (en) | 1981-05-26 | 1981-05-26 | Measuring method for vehicle traveling data |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57194360A (en) |
-
1981
- 1981-05-26 JP JP8064781A patent/JPS57194360A/en active Pending
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