JPS6235725A - Elastic wave communication system - Google Patents
Elastic wave communication systemInfo
- Publication number
- JPS6235725A JPS6235725A JP17456685A JP17456685A JPS6235725A JP S6235725 A JPS6235725 A JP S6235725A JP 17456685 A JP17456685 A JP 17456685A JP 17456685 A JP17456685 A JP 17456685A JP S6235725 A JPS6235725 A JP S6235725A
- Authority
- JP
- Japan
- Prior art keywords
- elastic wave
- ground
- transmitter receiver
- underwater
- communication
- 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
Landscapes
- Transducers For Ultrasonic Waves (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、水中航行体相互間又は水中航行体と地上との
間で地層内を伝わる弾性波により情報の交信を行なう通
信方式に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a communication method for communicating information between underwater vehicles or between an underwater vehicle and the ground using elastic waves that propagate within a geological formation.
（従来の技術）
水中航行体相互間で行なう従来の通信方式では、水中に
位置する送受波器から発せられ、水中を伝搬するところ
の超音波又は音波により通信を行なっていた。又、水中
航行体と陸上との通信方式には、水面のアンテナを介し
ての無線通信、ケーブルによる通信あるいは浅海中にお
ける超低周波の電波による通信などがあった。(Prior Art) In a conventional communication method between underwater vehicles, communication is performed using ultrasonic waves or sound waves that are emitted from a transducer located underwater and propagate underwater. Communication methods between underwater vehicles and land include wireless communication via antennas on the water surface, communication using cables, and communication using ultra-low frequency radio waves in shallow water.
（発明が解決しようとする問題点）
水中航行体相互間における上述した従来の通信方式には
、水中の送受波器間で情報の交信を行なうので、以下に
述べるような欠点がある。第１に、通信を行なおうとす
る送受波器以外の送受波器に交信が漏れてしまう点であ
る。第２に、信号が水中のみでしか伝搬しないので陸上
との通信で゛は無線又はケーブルにより結ばなければな
らないという点である。(Problems to be Solved by the Invention) The above-described conventional communication system between underwater vehicles has the following drawbacks because information is exchanged between underwater transducers. First, communication leaks to a transducer other than the transducer that is attempting to communicate. Second, since signals can only propagate underwater, communications with land must be made by radio or cable.
（問題点を解決するための手段）
本発明の弾性波通信方式は、海底若しくは水底又は地面
に密着又は挿入される送受波器を有し、それによって８
波を含む弾性波を発生させて直接堆石を振＠−ｉａせる
ことにより、水中航行体相互間又は水中航行体と陸上と
の間で通信をすることを特徴とする。(Means for Solving the Problems) The elastic wave communication system of the present invention has a transducer that is closely attached to or inserted into the ocean floor or the bottom of the water, or the ground, and thereby
It is characterized by communicating between underwater vehicles or between an underwater vehicle and the land by generating elastic waves including waves and directly shaking the mortar.
（実施例）
次に、本発明の実施例について図面を参照して説明する
。(Example) Next, an example of the present invention will be described with reference to the drawings.
第１図は、本発明の一実施例を用いて陸上から発信し水
中で受信する通信の状況を示す概念図である。図におい
て、１は地表面、２は海面であり、１００は陸上送信所
で信号発生器１０１及び増幅器１０２を有する。１０３
は、送受波器で、弾性波を発信したり受信したりする機
能を有し、本使用例では１０１かも発せられ、増幅器１
０２で増幅きれた電気信号を弾性波動に変換して送出す
る送波器となる。FIG. 1 is a conceptual diagram showing the situation of communication transmitted from land and received underwater using an embodiment of the present invention. In the figure, 1 is the ground surface, 2 is the sea surface, and 100 is a land transmitting station having a signal generator 101 and an amplifier 102. 103
is a transducer that has the function of transmitting and receiving elastic waves. In this usage example, 101 is also emitted, and the amplifier 1
It becomes a wave transmitter that converts the electrical signal amplified in step 02 into an elastic wave and sends it out.
２００は、水中航行体で、増幅器２０２、信号解析器２
０３及び解析結果の出力装置２０４を有し、本使用例で
は信号を受信しようとしている。２０１は、送受波器で
、本使用例では受波器として機能し、受信した弾性波動
を電気信号に変換し、増幅器２０２に送る機能を有する
。従って、１０１から発せられる信号は１０２で１０３
を駆動するのに十分なＴ力を与えられ、１０３で弾性波
に変換きれて弾性波の伝搬経路１０などを経て２０１に
至り、２０１で得られた微弱信号は２０２により振幅を
増大され、２０３において雑音や多重経路による影響を
除去されて、２０４により人間に理解し易い形で提示さ
れる。このように、本実施例により、１０１から２０４
に至る弾性波通信が可能である。200 is an underwater vehicle, which includes an amplifier 202 and a signal analyzer 2.
03 and an analysis result output device 204, and in this usage example, it is trying to receive a signal. Reference numeral 201 denotes a wave transceiver, which functions as a wave receiver in this usage example, and has a function of converting a received elastic wave into an electric signal and sending it to the amplifier 202. Therefore, the signal emitted from 101 is 102 and 103
A T force sufficient to drive the waveform is applied, and it is converted into an elastic wave at 103 and reaches 201 via the elastic wave propagation path 10 etc. The weak signal obtained at 201 has its amplitude increased at 202 and 203 At step 204, the influence of noise and multipaths is removed, and the signal is presented in a form that is easy for humans to understand. In this way, according to this embodiment, from 101 to 204
Acoustic wave communication is possible.
なお、本使用例は陸上から発信し水中航行体で受信する
通信であるが、熱論、水中航行体相互間あるいは水中航
行体から陸上への通信も本発明により可能である。Note that although this usage example is communication transmitted from land and received by an underwater vehicle, the present invention also allows communication to be carried out thermally, between underwater vehicles, or from an underwater vehicle to land.
（発明の効果）
以上説明したように、本発明におては、弾性波用の送受
波器を海底若しくは水底又は地面に密着または挿入する
ことにより、弾性波が地層中を伝搬することを利用して
、水中航行体相互あるいは水中航行体と陸上との通信が
艙−プルや無線伝送路を介することなく直接に行なえる
。また、その弾性波の中でもＳ波を選択すればＳ波は液
体中を伝わらないという性質があるから、水中航行体相
互又は水中航行体と陸上との通信に本発明を用いると、
秘匿効果を持ちながら交信を行なえる。(Effects of the Invention) As explained above, the present invention takes advantage of the fact that elastic waves propagate through the strata by closely contacting or inserting a transducer for elastic waves into the ocean floor, the water bottom, or the ground. As a result, communication between underwater vehicles or between an underwater vehicle and land can be performed directly without going through a boat pull or a wireless transmission path. In addition, if S waves are selected among the elastic waves, S waves have the property that they do not propagate through liquid, so if the present invention is used for communication between underwater vehicles or between underwater vehicles and land,
You can communicate while having a concealment effect.
第１図は本発明の一実施例を用いて陸上から発信し水中
の航行体で受信する通信状態を示す概念図である。
１・・・地表面、２・・・海面、１０・・・弾性波の伝
搬経路の一例、１００・・・陸上送受信所、１０１・・
・信号発生器、１０２・・・増幅器、１０３・・・送受
波器、２００・・・水中航行体、２０１・・・送受波器
、２０２・・・増幅器、２０３・・・信号解析器、２０
４・・・出力装置。
代理人 弁理士 本 庄 伸 介
第１図FIG. 1 is a conceptual diagram showing a communication state in which communication is transmitted from land and received by an underwater vehicle using an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Earth surface, 2... Sea surface, 10... Example of an elastic wave propagation path, 100... Land transmitting/receiving station, 101...
- Signal generator, 102... Amplifier, 103... Transducer/receiver, 200... Underwater vehicle, 201... Transducer/receiver, 202... Amplifier, 203... Signal analyzer, 20
4...Output device. Agent Patent Attorney Shinsuke Honjo Figure 1
Claims (1)
る通信方式において、送信側の送波器及び受信側の受波
器は海底若しくは水底又は地面に密着又は挿入され、弾
性波を送波又は受波することを特徴とする弾性波通信装
置。In a communication system that communicates between underwater vehicles or between an underwater vehicle and land, the transmitter on the transmitting side and the receiver on the receiving side are attached to or inserted into the ocean floor, the water bottom, or the ground, and transmit elastic waves. An elastic wave communication device characterized by receiving waves or receiving waves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17456685A JPS6235725A (en) | 1985-08-08 | 1985-08-08 | Elastic wave communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17456685A JPS6235725A (en) | 1985-08-08 | 1985-08-08 | Elastic wave communication system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6235725A true JPS6235725A (en) | 1987-02-16 |
Family
ID=15980801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17456685A Pending JPS6235725A (en) | 1985-08-08 | 1985-08-08 | Elastic wave communication system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6235725A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998007610A1 (en) * | 1996-08-20 | 1998-02-26 | The Nippon Signal Co., Ltd. | Information generator using elastic wave |
-
1985
- 1985-08-08 JP JP17456685A patent/JPS6235725A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998007610A1 (en) * | 1996-08-20 | 1998-02-26 | The Nippon Signal Co., Ltd. | Information generator using elastic wave |
| US6031790A (en) * | 1996-08-20 | 2000-02-29 | The Nippon Signal Co. Ltd. | Information generator using elastic wave |
| US6292432B1 (en) * | 1996-08-20 | 2001-09-18 | The Nippon Signal Co., Ltd. | Information generating apparatus using elastic waves |
| US6459656B1 (en) | 1996-08-20 | 2002-10-01 | The Nippon Signal Co., Ltd. | Information generating apparatus using elastic waves |
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