JPS6320922A - Power supply application system for receiver - Google Patents
Power supply application system for receiverInfo
- Publication number
- JPS6320922A JPS6320922A JP16634686A JP16634686A JPS6320922A JP S6320922 A JPS6320922 A JP S6320922A JP 16634686 A JP16634686 A JP 16634686A JP 16634686 A JP16634686 A JP 16634686A JP S6320922 A JPS6320922 A JP S6320922A
- Authority
- JP
- Japan
- Prior art keywords
- receiver
- power supply
- transmitter
- power
- pulse signal
- 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
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 abstract description 5
- 230000009982 effect on human Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 1
Landscapes
- Circuits Of Receivers In General (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は受信機の電源投入方式に関し、特に無線移動体
識別システムにおける移動局において利用される。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a power-on method for a receiver, and is particularly used in a mobile station in a wireless mobile identification system.
（従来の技術）
無線を利用した移動体識別システムにおいて、移動体に
取付られた受信機は、送信側（例えば固定局）からの無
線信号を受けてその移動体固有の信号（符号等）を再放
射させる場合がある。このような場合には受信機側に内
蔵電源が必要になり、一般に装置が大損りになり、また
内蔵電源の寿命が短いといった問題をＢＥ（、；る。(Prior Art) In a mobile object identification system using radio, a receiver attached to a mobile object receives a wireless signal from a transmitting side (for example, a fixed station) and transmits a signal (code, etc.) unique to the mobile object. It may be re-radiated. In such a case, a built-in power supply is required on the receiver side, which generally causes major damage to the device and also causes problems such as the built-in power supply having a short lifespan.
そこで、このような間−点を解決するために、例えば第
３図に示すような無電源方式の受信機（送信機も兼ねる
）が堤案されている。同図において、ａは受信アンテナ
、ｂは同調回路、Ｃは整流回路、ｄは発振回路、ｅは変
調回路、ｒは送信アンテナである。この受信機は、外部
の別の送信機（図示省略）より大出力の信号を送信し、
この信号を受信アンテナａで受けるとその電波による電
気振動が同調回路すに誘起され、この誘起、電力を整流
回路Ｃで直流化して電源とし、発振回路ｄおよび変調回
路ｅを動作させて所定の信号を送信アンテナ「より送出
するものである。In order to solve this problem, a powerless receiver (also serving as a transmitter), as shown in FIG. 3, has been proposed. In the figure, a is a receiving antenna, b is a tuning circuit, C is a rectifier circuit, d is an oscillation circuit, e is a modulation circuit, and r is a transmitting antenna. This receiver transmits a signal with a higher output than another external transmitter (not shown),
When this signal is received by the receiving antenna a, electrical vibrations due to the radio waves are induced in the tuning circuit S. This induced power is converted into DC by the rectifier circuit C and used as a power source, which operates the oscillation circuit d and the modulation circuit e to generate a predetermined signal. A signal is sent out from a transmitting antenna.
（発明が解決しようとする問題点）
しかしながら、上記した方式では、大電力の輻射電波に
よる人体や他のシステムへの影否が大きいという問題が
あった。また、受信Ｆ！（送信機も兼ねる）に内蔵電源
を設ける必要はないものの、電力を供給するための大出
力の信号を外部から送信しなければならず、送信機側の
設備が大規模になるという問題もあった。(Problems to be Solved by the Invention) However, the above-described system has a problem in that the high-power radiated radio waves have a large effect on the human body and other systems. Also, receive F! Although it is not necessary to provide a built-in power supply to the transmitter (which also serves as a transmitter), it is necessary to transmit a high-output signal from the outside to supply power, and there is the problem that the equipment on the transmitter side becomes large-scale. Ta.
（問題点を解決するための手段）
本発明に係る受信機の電源投入方式は、送信機側から送
出された通常の送信信号より大振幅の短時間のパルス状
信号を受信機側で受信することにより、該パルス状信号
によって受信機内部の電源スイッチを投入するようにし
たものである。(Means for Solving the Problems) In the power-on method of the receiver according to the present invention, the receiver side receives a short-time pulsed signal with a larger amplitude than a normal transmission signal sent from the transmitter side. Accordingly, the power switch inside the receiver is turned on by the pulsed signal.
（作用）
受信機内部の電源スイッチの投入を、通常の送信信号よ
り大振幅の短時間のパルス状信号を用いて行うことによ
り、受信機の内蔵電源の消費を少なくするとともに、輻
射電波による人体や他のシステムへの影響を少なくする
。(Function) By turning on the power switch inside the receiver using a short-time pulse signal with a larger amplitude than a normal transmission signal, the consumption of the built-in power supply of the receiver is reduced, and the human body is and other systems.
（実施例） 以下、本発明の一実施例を図面を参照して説明する。(Example) Hereinafter, one embodiment of the present invention will be described with reference to the drawings.
第１図は本発明に係る受信機の電源投入方式の概略構成
を示している。FIG. 1 shows a schematic configuration of a power-on system for a receiver according to the present invention.
同図において、１は送信機、２は送信アンテナである。In the figure, 1 is a transmitter and 2 is a transmitting antenna.
また、３は受信機で、受信アンテナ４、検波回路５、切
換スイッチ（電源スイッチ）６、および電源回路（また
はＣＰＵ）７等で構成されている。Further, 3 is a receiver, which includes a receiving antenna 4, a detection circuit 5, a changeover switch (power switch) 6, a power supply circuit (or CPU) 7, and the like.
第２図は前記送信機１より放射される送信信号を示し、
時間τの間だけ前記切換スイッチ６を投入するための大
振幅のパルス状信号が送信されることを示している。FIG. 2 shows a transmission signal emitted from the transmitter 1,
This shows that a pulse-like signal with a large amplitude for turning on the changeover switch 6 is transmitted only during the time τ.
送信機１の送信アンテナ２から放射された上記のような
大振幅のパルス状信号は、受信機３の受信アンテナ４で
受信され、検波回路５で検波される。この検波電圧を切
換スイッチ６に入力することにより該切換スイッチ６が
閉成され、電源回路（またはＣＰＵ）７が駆動されるも
のである。The above-described large-amplitude pulsed signal radiated from the transmitting antenna 2 of the transmitter 1 is received by the receiving antenna 4 of the receiver 3 and detected by the detection circuit 5. By inputting this detected voltage to the changeover switch 6, the changeover switch 6 is closed and the power supply circuit (or CPU) 7 is driven.
（発明の効果）
以上説明したように、本発明に係る受信機の電源投入方
式によれば、電源スイッチが投入されたときにのみ受信
機が駆動されるので、内蔵電源の消費を少なく抑えるこ
とができる。また、大振幅のパルス状信号の放射時間は
短時間であるので、輻射電波による人体や他のシステム
への影響を少なくすることができるとともに、送信機側
の設備も小規模にすることができる。(Effects of the Invention) As explained above, according to the receiver power-on method according to the present invention, the receiver is driven only when the power switch is turned on, so that consumption of the built-in power source can be kept to a low level. Can be done. In addition, since the radiation time of large-amplitude pulsed signals is short, the impact of radiated radio waves on the human body and other systems can be reduced, and the equipment on the transmitter side can also be made smaller. .
第１図は本発明に係る受信機の電源投入方式の概略ブロ
ック図、第２図は送信機から放射される送信信号の波形
図、第３図は従来の無電源方式の受信機の概略ブロック
図である。
ｌ・・・送信機 ２・・・送信アンテナ３、・
・・受信機 ４・・・受信アンテナ５・・・検
波回路 ６・・・切換スイッチ７・・・電源回路
（またはＣＰＵ）
代理人 弁理士 店内 義朗仁尽応土・第７図
第２図
時間
第３図Fig. 1 is a schematic block diagram of a power-on method for a receiver according to the present invention, Fig. 2 is a waveform diagram of a transmission signal emitted from a transmitter, and Fig. 3 is a schematic block diagram of a conventional power-free receiver. It is a diagram. l...Transmitter 2...Transmission antenna 3,・
... Receiver 4 ... Receiving antenna 5 ... Detection circuit 6 ... Selector switch 7 ... Power supply circuit (or CPU) Agent Patent attorney Store Yoshiro Jinjin Odo / Figure 7 Figure 2 Time Figure 3
Claims (1)
の短時間のパルス状信号を受信機側で受信することによ
り、該パルス状信号によって受信機内部の電源スイッチ
を投入するようにしたことを特徴とする受信機の電源投
入方式。1) By receiving on the receiver side a short-time pulse signal with a larger amplitude than the normal transmission signal sent from the transmitter side, the power switch inside the receiver is turned on by the pulse signal. A receiver power-on method characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16634686A JPS6320922A (en) | 1986-07-15 | 1986-07-15 | Power supply application system for receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16634686A JPS6320922A (en) | 1986-07-15 | 1986-07-15 | Power supply application system for receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6320922A true JPS6320922A (en) | 1988-01-28 |
Family
ID=15829674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16634686A Pending JPS6320922A (en) | 1986-07-15 | 1986-07-15 | Power supply application system for receiver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6320922A (en) |
-
1986
- 1986-07-15 JP JP16634686A patent/JPS6320922A/en active Pending
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