JPS57163883A - Position detector for vehicle by ultrasonic wave - Google Patents
Position detector for vehicle by ultrasonic waveInfo
- Publication number
- JPS57163883A JPS57163883A JP56050870A JP5087081A JPS57163883A JP S57163883 A JPS57163883 A JP S57163883A JP 56050870 A JP56050870 A JP 56050870A JP 5087081 A JP5087081 A JP 5087081A JP S57163883 A JPS57163883 A JP S57163883A
- Authority
- JP
- Japan
- Prior art keywords
- vehicle
- ultrasonic wave
- wave
- ultrasonic
- transmitter
- 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
- 238000001514 detection method Methods 0.000 abstract 1
- 238000007493 shaping process Methods 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
- B61L25/02—Indicating or recording positions or identities of vehicles or trains
- B61L25/026—Relative localisation, e.g. using odometer
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Vehicles With Linear Motors And Vehicles That Are Magnetically Levitated (AREA)
- Control Of Linear Motors (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
PURPOSE:To detect the position of a vehicle even when it is still without performing complicate processing, by emitting an ultrasonic wave to a target on a track, and detecting the presence of its reflected wave or it propagation time. CONSTITUTION:A driving magnetic pole 2 on a vehicle is energized by a superconductive coil, and a ground driving coil 6 is controlled by a position detection signal and then energized by a three-phase power source. On the flank of a running vehicle 1 floating magnetically, ultrasonic-wave transmitter and receivers 3 and 4 are arranged opposite a reflecting plate 5 arranged on a flank over a track. When a position discriminator 15 opens a gate 8, the output of an oscillator 7 is passed through the gate 8 and an amplifier 9 to radiate an ultrasonic wave from an ultrasonic wave receiver and transmitter 10 to the reflecting plate 5. The reflected ultrasonic wave is received by an ultrasonic-wave receiver 11 and then sent to the position discriminator 15 through an amplifier 12 and a waveform shaping circuit 13, thereby discriminating the presence of the reflecting plate 5. For other transmitter and receivers, the same operation is carried out to detect the position of the vehicle.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56050870A JPS57163883A (en) | 1981-04-02 | 1981-04-02 | Position detector for vehicle by ultrasonic wave |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56050870A JPS57163883A (en) | 1981-04-02 | 1981-04-02 | Position detector for vehicle by ultrasonic wave |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57163883A true JPS57163883A (en) | 1982-10-08 |
Family
ID=12870753
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56050870A Pending JPS57163883A (en) | 1981-04-02 | 1981-04-02 | Position detector for vehicle by ultrasonic wave |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57163883A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02278020A (en) * | 1989-03-20 | 1990-11-14 | Wynn's Precision Inc | Booth assembly for constant speed joint |
JPH0430410U (en) * | 1990-07-04 | 1992-03-11 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5023819A (en) * | 1973-07-04 | 1975-03-14 | ||
JPS5439156A (en) * | 1977-09-02 | 1979-03-26 | Nippon Soken | Distance measuring device loaded on car |
-
1981
- 1981-04-02 JP JP56050870A patent/JPS57163883A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5023819A (en) * | 1973-07-04 | 1975-03-14 | ||
JPS5439156A (en) * | 1977-09-02 | 1979-03-26 | Nippon Soken | Distance measuring device loaded on car |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02278020A (en) * | 1989-03-20 | 1990-11-14 | Wynn's Precision Inc | Booth assembly for constant speed joint |
JPH0430410U (en) * | 1990-07-04 | 1992-03-11 |
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