【０００１】[0001]
【産業上の利用分野】超音波に関する応用等関連機器に
属する。[Industrial field] Application of ultrasonic waves and related equipment.
【０００２】[0002]
【従来の技術】水晶発振器、超音波発生装置、計測器等
がある。2. Description of the Related Art There are crystal oscillators, ultrasonic generators, measuring instruments and the like.
【０００３】[0003]
【０００４】[0004]
【発明が解決しようとする課題】電磁波の通信法に対応
する超音波の通信法の構成Configuration of ultrasonic communication method corresponding to electromagnetic wave communication method
【０００５】[0005]
【課題を解決するための手段】上記の目的を達成するた
め超音波の送受信搬送周波数非同調ピエゾ振動子系とこ
れに対応する電波の送受信機系の組合せを手段とする。
図１について数字記号は１：ピエゾ振動子、１−１：伝
播変調超音波を示す模型、Ｚ：垂直形アンテナ、２−
１：送受信高周波電源、３：送信機Ｔ、３−１：送信機
出力端子、４：受信機Ｒ、４−１：アンテナ受信機入力
端子、を夫々示す。本発明に関する超音波の周波数ｆ値
の範囲は１０５−１０６サイクル／秒でありこれは中波
の電磁波に対応する。中波帯についてＮＨＫ等１チャン
ネルは５９４ＫＨｚ、ラジオ日本は１４２２ＫＨｚとな
る、１０３ＫＨｚと短波１０４ＫＨｚ（１０ＭＣ）の超
音波を発生させるピエゾ振動子（例えば水晶）の外形寸
法は厚みが５ｍｍ及び１ｍｍ位いになり円板と考えると
直径１０ｍｍ程度である。このようなピエゾ振動子に関
して電磁波と超音波は同等の対応関係にありいずれも空
中を伝播して通信機能を形成する。図１について１の外
形は既述の寸法に準じ水晶、ロツシエル塩等のピエゾ振
動子である。１−１は振動子１によって発生伝播する変
調超音波を示しこれは電波に準じるが弾性波であること
が本通信法の主題に当る。In order to achieve the above object, a combination of an ultrasonic transmission / reception carrier frequency non-tuned piezo oscillator system and a corresponding radio wave transceiver system is used.
Regarding FIG. 1, numeral symbols are 1: piezo oscillator, 1-1: model showing propagation modulated ultrasonic waves, Z: vertical antenna, 2-
Reference numeral 1 indicates a transmission / reception high-frequency power source, 3: a transmitter T, 3-1: a transmitter output terminal, 4: a receiver R, 4-1: an antenna receiver input terminal, respectively. The range of frequency f values for ultrasonic waves according to the present invention is 105 -106 cycles / second, which corresponds to medium-wave electromagnetic waves. Regarding the medium wave band, 1 channel of NHK etc. is 594 KHz, Radio Japan is 1422 KHz, and the external dimensions of the piezoelectric oscillator (for example, crystal) that generates ultrasonic waves of 103 KHz and short wave 104 KHz (10 MC) are 5 mm and thickness. The diameter is about 10 mm when it is considered to be a disk about 1 mm. With regard to such a piezoelectric vibrator, electromagnetic waves and ultrasonic waves have an equivalent correspondence relationship, and both propagate in the air to form a communication function. In FIG. 1, the outer shape of 1 is a piezo-oscillator such as a crystal, a Rochier salt or the like according to the above-mentioned dimensions. Reference numeral 1-1 denotes a modulated ultrasonic wave generated and propagated by the vibrator 1, which is an elastic wave according to a radio wave, which is the subject of the present communication method.
【０００６】通信法の発信側は発信機Ｔ、３で音声等の
入力信号で適当な搬送周波数高周波（中波）を変調して
まず通常の送信電波出力が作られる。これを出力端子３
−１を経てアンテナ２に接続する。２の垂直形アンテナ
は電源２−１で励起される。従ってＴ送信機、３はこの
変調高周波電源２−１を意味している。電源２−１に接
続する送受信用垂直アンテナ２についてｌ≒λ／４ λ：アンテナの固有波長（３×１０５−３×１０４）ｃ
ｍ ｌ：アンテナ基部より先端までの長さ で示される。受信側について垂直形アンテナ２の入力は
２−１電源でとり出されこれは受信機Ｒ、４によって増
幅されて出力となる。このことは通常の電波による通信
法と相似するが本発明は送受信のこの電磁的な対応に超
音波の弾性波がピエゾ振動子を通して媒介されることが
電波だけの送受信関係と異っている。音声変調超音波を
発生させる場合ピエゾ振動子が電波の搬送周波数に共振
すると変調超音波がえられない。従って１は搬送波周波
数に対して非同調の寸法の振動子を意味する。結局、２
個の系、電波系と超音波通信系の２者の結合で形成され
る通信法が課題を解決するものである。On the transmission side of the communication method, an appropriate transmission frequency high frequency (medium wave) is modulated by an input signal such as voice by transmitters T and 3, and a normal transmission radio wave output is first produced. This is output terminal 3
Connect to antenna 2 via -1. The two vertical antennas are excited by the power source 2-1. Therefore, the T transmitter 3 means the modulated high frequency power source 2-1. Regarding the transmission / reception vertical antenna 2 connected to the power source 2-1, l≈λ / 4 λ: antenna specific wavelength (3 × 105 −3 × 104 ) c
ml: The length from the base of the antenna to the tip. On the receiving side, the input of the vertical antenna 2 is taken out by the 2-1 power supply, which is amplified by the receivers R and 4 and becomes the output. This is similar to the ordinary radio wave communication method, but the present invention is different from the transmission / reception relationship of only radio waves in that elastic waves of ultrasonic waves are mediated through a piezoelectric vibrator in response to this electromagnetic correspondence of transmission / reception. When generating a voice-modulated ultrasonic wave, the modulated ultrasonic wave cannot be obtained when the piezoelectric vibrator resonates with the carrier frequency of the radio wave. Therefore, 1 means a transducer whose dimensions are non-tuned to the carrier frequency. After all, 2
A communication method formed by combining two systems, an individual system, a radio system and an ultrasonic communication system, solves the problem.
【０００７】[0007]
【作用】超音波は空気に関しては良導体であるから長距
離通信が可能である。つまり効率のいゝ微小強度の変調
超音波の空中伝送が充分成立する。これはコーモリの行
動で類似してもいゝ。コーモリの通信機能は本発明の送
信機−発信子、受信子−受信機の関係を生物学的な生理
的器官で代置したものに相当する。[Operation] Since ultrasonic waves are good conductors of air, long distance communication is possible. In other words, efficient in-air transmission of modulated ultrasonic waves with minute intensity is sufficiently established. This may be similar to the behavior of Komori. The communication function of the call terminal corresponds to the transmitter-transmitter and receiver-receiver relationship of the present invention replaced by a biological physiological organ.
【０００８】[0008]
【実施例】受信側は図１の振動子１、アンテナ２、受信
機Ｒ４の３者で成立するが４はスーパーヘテロダインＡ
Ｍラジオ、１はクリスタルレシーバーのロツシエル塩音
声振動子、垂直系アンテナ２は市販されるＡＭラジオの
アンテナで実用上使用できる。[Embodiment] The receiving side is made up of the vibrator 1, the antenna 2 and the receiver R4 of FIG. 1, but 4 is a superheterodyne A.
The M radio, 1 is a Rothsiel salt voice oscillator as a crystal receiver, and the vertical antenna 2 is a commercially available AM radio antenna that can be used practically.
【０００９】[0009]
【発明の効果】ガラス窓のメッキや金網のような電波を
遮蔽した状況でも超音波は通過できる。又超音波を吸収
する遮蔽された状態でも電波は遮断されない。これは電
磁波と異なった用途を実現する。EFFECTS OF THE INVENTION Ultrasonic waves can pass even in a situation where radio waves are shielded, such as plating of glass windows and wire mesh. Further, even in a shielded state that absorbs ultrasonic waves, radio waves are not blocked. This realizes a different application from electromagnetic waves.
【図１】超音波通信法を説明する構成図である。FIG. 1 is a configuration diagram illustrating an ultrasonic communication method.
１ ピエゾ振動子 ２ 垂直形アンテナ ３ 送信機Ｔ ４ 受信機Ｒ 1 Piezo transducer 2 Vertical antenna 3 Transmitter T 4 Receiver R
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36142291AJPH05167540A (en) | 1991-12-16 | 1991-12-16 | Ultrasonic communication method |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36142291AJPH05167540A (en) | 1991-12-16 | 1991-12-16 | Ultrasonic communication method |
| Publication Number | Publication Date |
|---|---|
| JPH05167540Atrue JPH05167540A (en) | 1993-07-02 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP36142291APendingJPH05167540A (en) | 1991-12-16 | 1991-12-16 | Ultrasonic communication method |
| Country | Link |
|---|---|
| JP (1) | JPH05167540A (en) |
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