JPS5496065A - Distance measuring method - Google Patents
Distance measuring methodInfo
- Publication number
- JPS5496065A JPS5496065A JP188278A JP188278A JPS5496065A JP S5496065 A JPS5496065 A JP S5496065A JP 188278 A JP188278 A JP 188278A JP 188278 A JP188278 A JP 188278A JP S5496065 A JPS5496065 A JP S5496065A
- Authority
- JP
- Japan
- Prior art keywords
- sound wave
- master station
- slave station
- circuit
- noise
- 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
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/74—Systems using reradiation of acoustic waves, e.g. IFF, i.e. identification of friend or foe
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Acoustics & Sound (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
PURPOSE:To realize distance measurement for a long period of time under the influence of noise, by measuring the distance between the master station and slave station under water by changing over between the transponder system and Pinger system depending on the noise. CONSTITUTION:According to a specific time signal generated by a time generating circuit 5 of a master station 1 under water, a specific sound wave pulse signal is transmitted from a transmitting circuit 8 and a transmitter 9 through an interface circuit 6, and is received by a receiver 11 of a slave station 2 under water. This reception signal causes a gate 13 to be opened, and the sound wave pulse signal from a pulse generating circuit 15 is transmitted from a transmitter 19 and is received in the master station 1. Thus, the distance between the master station 1 and the slave station 2 is measured by the transponder method. In this case, a gate 17 is closed by the sound wave signal of the circuit 15 through the gate 13 of the slave station 2. On the other hand, when the submarine noise in the vicinity of the slave station is large and the sound wave pulse signal from the master station 1 is not received by the slave station 2 at the specified time, the sound wave pulse signal from the circuit 15 through the open gate 17 is received by the master station 1, so that the distance may be measured for a long period of time under the influence of noise by the Pinger system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP188278A JPS5496065A (en) | 1978-01-13 | 1978-01-13 | Distance measuring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP188278A JPS5496065A (en) | 1978-01-13 | 1978-01-13 | Distance measuring method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5496065A true JPS5496065A (en) | 1979-07-30 |
Family
ID=11513927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP188278A Pending JPS5496065A (en) | 1978-01-13 | 1978-01-13 | Distance measuring method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5496065A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0243674U (en) * | 1988-09-19 | 1990-03-26 | ||
| JPH03130687A (en) * | 1989-10-14 | 1991-06-04 | Matsushita Electric Works Ltd | Pulse type ultrasonic distance measuring apparatus |
-
1978
- 1978-01-13 JP JP188278A patent/JPS5496065A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0243674U (en) * | 1988-09-19 | 1990-03-26 | ||
| JPH03130687A (en) * | 1989-10-14 | 1991-06-04 | Matsushita Electric Works Ltd | Pulse type ultrasonic distance measuring apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5398861A (en) | Underwater information collecting system | |
| JPS5732144A (en) | Energy and/or data transmitter and receiver | |
| JPS5496065A (en) | Distance measuring method | |
| JPS56153267A (en) | Distance measuring device using ultrasonic wave | |
| JPS55163469A (en) | Measuring system for ultrasonic wave propagation time | |
| GB1496472A (en) | Method and apparatus for the directional characteristic of an echo sounding receiver | |
| JPS5767853A (en) | Method for standardization of ae signal and discrimination of ae signal source | |
| JPS56164654A (en) | Data transmitting and receiving device | |
| JPS5335493A (en) | Object approach alarm equipment | |
| GB1344677A (en) | Testing device | |
| JPS5744407A (en) | Rolling mill | |
| JPS577511A (en) | Collecting method for underwater observing apparatus | |
| JPS6447985A (en) | Cw radar system | |
| JPS5730968A (en) | Echo sounder | |
| JPS54136293A (en) | Echo detection system | |
| JPS5618777A (en) | Range measuring apparatus | |
| JPS5576965A (en) | Acoustic device for fish detector | |
| JPS5397870A (en) | Transmitter and receiver for sonar | |
| JPS57108770A (en) | Position measuring device for moving object | |
| JPS57111479A (en) | Distance calibration system of distance measuring instrument | |
| JPS55110691A (en) | Method and device for floating away of light buoy | |
| JPS5348607A (en) | Discrimination system for signal frequency | |
| JPS5344788A (en) | Transmitter/receiver | |
| JPS53111215A (en) | Confirmation communication system | |
| JPS5317752A (en) | Ultrasonic transmitter and receiver installing system |