JPS55131788A - Searching method of direction and position in utilization of ultrasonic wave for moving object - Google Patents
Searching method of direction and position in utilization of ultrasonic wave for moving objectInfo
- Publication number
- JPS55131788A JPS55131788A JP3920379A JP3920379A JPS55131788A JP S55131788 A JPS55131788 A JP S55131788A JP 3920379 A JP3920379 A JP 3920379A JP 3920379 A JP3920379 A JP 3920379A JP S55131788 A JPS55131788 A JP S55131788A
- Authority
- JP
- Japan
- Prior art keywords
- wave
- signal
- ultrasonic wave
- frequency
- moving object
- 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.)
- Granted
Links
Landscapes
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
PURPOSE: To accomplish measurement of the direction and the position of a moving object easily with a set of devices by searching the direction and the position of the object receiving ultrasonic wave from the fixed point thereon.
CONSTITUTION: The signal wave of frequency f2 generated with a signal wave oscillator 1 is applied to a ring modulators 3 through a gate circuit 2. The modulator 3 overlaps the ultrasonic wave of frequency f1 as carrier transmitted from an ultrasonic wave oscillator 4 and emits thereof from the ultrasonic transmitter 8. Very high frequency received with receiver 9 on the moving object is demodulated to a signal of frequency f2 with a demodulator 13. On the other hand, when a distance measuring signal is outputted from a controller 19, the counter circuit 20 starts counting the pulse of a pulse generator 21. At the same time, a radio wave is emitted from the antenna, and received with an antenna 27 to open the circuit 2 whereby the signal wave of the oscillator 1 is emitted from a transmitter 8. Receiving the wave, the circuit 20 halts the counting while the distance of the object is determined from the number of counting. The direction of the object is searched with a direction searching device 34.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3920379A JPS5931022B2 (en) | 1979-03-31 | 1979-03-31 | Direction and position search method using ultrasound in mobile objects |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3920379A JPS5931022B2 (en) | 1979-03-31 | 1979-03-31 | Direction and position search method using ultrasound in mobile objects |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55131788A true JPS55131788A (en) | 1980-10-13 |
JPS5931022B2 JPS5931022B2 (en) | 1984-07-30 |
Family
ID=12546560
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3920379A Expired JPS5931022B2 (en) | 1979-03-31 | 1979-03-31 | Direction and position search method using ultrasound in mobile objects |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5931022B2 (en) |
-
1979
- 1979-03-31 JP JP3920379A patent/JPS5931022B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5931022B2 (en) | 1984-07-30 |
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