JP2005311966A - Radio communication system - Google Patents

Radio communication system Download PDF

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Publication number
JP2005311966A
JP2005311966A JP2004129829A JP2004129829A JP2005311966A JP 2005311966 A JP2005311966 A JP 2005311966A JP 2004129829 A JP2004129829 A JP 2004129829A JP 2004129829 A JP2004129829 A JP 2004129829A JP 2005311966 A JP2005311966 A JP 2005311966A
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power supply
commercial power
supply line
resistance means
frequency resistance
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JP2004129829A
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Genshu To
元珠 竇
Teruo Tadachi
晃夫 忠地
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Alps Alpine Co Ltd
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Alps Electric Co Ltd
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Priority to JP2004129829A priority Critical patent/JP2005311966A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To simplify a system by using in common as an antenna an indoor commercial power supply line for supplying power to a radio communication apparatus. <P>SOLUTION: A radio communication system includes a power source section 33 for converting an AC voltage supplied from an indoor commercial power supply line 41 into a DC voltage, and a transmitter circuit and/or receiver circuit 32 driven by the DC voltage; an antenna connecting terminal 32a of the transmitter circuit and/or receiver circuit 32 is coupled to one commercial power supply line 34a at the input side of the power source section 33; and a high frequency resistance means 43 is provided on another indoor commercial power supply line 34a away from a coupling point of the antenna connecting terminal 32a and the one commercial power supply line 34a for a predetermined length. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

この発明は、無線通信システムに関する。   The present invention relates to a wireless communication system.

従来の無線通信システムを図５に従って説明する。アンテナ２で受信されたＴＶの受信波は給電線路３で伝送されてモデム４に入力される。モデム４は受信波を復調する。復調されたＴＶチャンネルはチャンネルセレクタ５により選択され、ＰＬＣモデム６によりＰＬＣ用のＯＦＤＭ変調を行う。次に、ＰＬＣ多重化装置７により、選択されたチャンネルを基幹電力線１に多重化して伝送する。   A conventional wireless communication system will be described with reference to FIG. The TV reception wave received by the antenna 2 is transmitted through the feed line 3 and input to the modem 4. The modem 4 demodulates the received wave. The demodulated TV channel is selected by the channel selector 5 and the PLC modem 6 performs OFDM modulation for the PLC. Next, the selected channel is multiplexed and transmitted to the main power line 1 by the PLC multiplexer 7.

多重化された信号は、分岐電力線８によって分離される。分岐電力線８の先端には電源とＯＦＤＭ変調されたＴＶ信号を分離する信号復調モデム９が接続される。また、電源も分離され、このモデム９には電源用コンセントとＴＶ信号用のアダプタが付いている。モデム９にデジタルＴＶ２０の電源ケーブル１０とＴＶ用アンテナケーブル１１が接続され、ＴＶを見ることができる。このモデム９には、ＴＶ信号を抽出するのみでなく、ＶＨＦ帯あるいはＵＨＦ帯にアップコンバートする機能も含まれているため、セットトップボックスとして機能するものである。   The multiplexed signals are separated by the branch power line 8. A signal demodulating modem 9 that separates the power source and the OFDM-modulated TV signal is connected to the tip of the branch power line 8. Also, the power source is separated, and the modem 9 has a power outlet and an adapter for TV signals. The power cable 10 of the digital TV 20 and the TV antenna cable 11 are connected to the modem 9 so that the TV can be viewed. The modem 9 functions as a set-top box because it includes not only extracting a TV signal but also a function of up-converting to a VHF band or UHF band.

ＴＶのチャンネル操作はリモコン２１から行う。リモコン２１で選択したチャンネルは基幹電力線１に多重化された制御信号１００として、チャンネルセレクタ５及びＰＬＣモデム６、ＰＬＣ多重化装置７を遠隔操作することができる。選択されたチャンネルは映像信号１０１として、基幹電力線１を伝送する（例えば、特許文献１参照。）。   TV channel operation is performed from the remote controller 21. The channel selected by the remote controller 21 can be remotely operated as the control signal 100 multiplexed on the main power line 1, the channel selector 5, the PLC modem 6, and the PLC multiplexer 7. The selected channel transmits the main power line 1 as the video signal 101 (see, for example, Patent Document 1).

特開２００２−０４３９８９（図４）JP 2002-043989 (FIG. 4)

上記に無線通信システムでは、アンテナで受信した受信信号をＰＬＣ多重化装置によって基幹電力線に多重化し、多重化された信号を信号復調モデムによって電源とＴＶ信号とを分離して信号復調モデムからＴＶに電源とＴＶ信号とを供給するので、システムが複雑になる。   In the wireless communication system described above, the received signal received by the antenna is multiplexed on the main power line by the PLC multiplexer, and the multiplexed signal is separated from the power demodulator modem and the TV signal by the signal demodulator modem to the TV from the signal demodulator modem. Supplying power and TV signals complicates the system.

本発明は、無線通信装置に電源を供給する屋内の商用電源ラインをアンテナとして兼用することでシステムの簡素化を図ることを目的とする。   An object of the present invention is to simplify a system by using an indoor commercial power supply line that supplies power to a wireless communication apparatus as an antenna.

上記の課題を解決する手段として、屋内における商用電源ラインから供給されたＡＣ電圧を直流電圧に変換する電源部と、前記直流電圧によって駆動される送信回路又は／及び受信回路とを有し、前記送信回路又は／及び受信回路のアンテナ接続端を前記電源部の入力側における一方の商用電源ラインに結合し、前記アンテナ接続端と前記一方の商用電源ラインとの結合点から所定の長さ離れた屋内の前記一方の商用電源ラインに高周波抵抗手段を設けた。   As means for solving the above problems, the power supply unit converts an AC voltage supplied from a commercial power supply line indoors into a DC voltage, and a transmission circuit and / or a reception circuit driven by the DC voltage, The antenna connection end of the transmission circuit or / and the reception circuit is coupled to one commercial power supply line on the input side of the power supply unit, and is separated from the coupling point between the antenna connection end and the one commercial power supply line by a predetermined length High frequency resistance means was provided on the one commercial power line indoors.

また、前記商用電源ラインはＡＣプラグ付きのＡＣコードであり、前記ＡＣプラグ内に前記高周波抵抗手段を設けた。   The commercial power line is an AC cord with an AC plug, and the high-frequency resistance means is provided in the AC plug.

また、前記高周波抵抗手段を前記ＡＣコードに設けた。   The high frequency resistance means is provided in the AC cord.

また、前記高周波抵抗手段は前記一方の商用電源ラインが挿通する環状のフェライトコアとした。   The high-frequency resistance means is an annular ferrite core through which the one commercial power line is inserted.

また、前記アンテナ接続端と前記一方の商用電源ラインとの結合点から前記高周波抵抗手段が設けられた位置までの前記一方の商用電ラインの長さを送信周波数又は／及び受信周波数に対応する波長の１０／〜１／４とした。   The wavelength corresponding to the transmission frequency and / or the reception frequency is the length of the one commercial power line from the coupling point between the antenna connection end and the one commercial power line to the position where the high-frequency resistance means is provided. 10 / ˜¼.

請求項１に記載の発明によれば、ＡＣ電圧を直流電圧に変換する電源部と、直流電圧によって駆動される送信回路又は／及び受信回路とを有し、送信回路又は／及び受信回路のアンテナ接続端を電源部の入力側における一方の商用電源ラインに結合し、アンテナ接続端と一方の商用電源ラインとの結合点から所定の長さ離れた屋内の一方の商用電源ラインに高周波抵抗手段を設けたことによって、高周波抵抗手段が設けられた位置のでは、ＡＣコードが相互に高周波的に絶縁され、アンテナ接続端との結合点から高周波抵抗手段が設けられた位置までのＡＣコードが送信アンテナ又は受信アンテナとして機能するので、電源部にＡＣ電源を接続するだけで送信又は／及び受信が可能となる。   According to the first aspect of the present invention, the power supply unit that converts AC voltage into DC voltage and the transmission circuit or / and reception circuit driven by the DC voltage are provided, and the antenna of the transmission circuit or / and reception circuit is provided. The connection end is coupled to one commercial power supply line on the input side of the power supply unit, and the high frequency resistance means is connected to one commercial power supply line indoors that is a predetermined length away from the coupling point between the antenna connection end and the one commercial power supply line. As a result, at the position where the high frequency resistance means is provided, the AC cords are insulated from each other at high frequency, and the AC code from the coupling point with the antenna connection end to the position where the high frequency resistance means is provided is transmitted from the antenna Alternatively, since it functions as a receiving antenna, transmission or / and reception can be performed simply by connecting an AC power supply to the power supply unit.

また、請求項２に記載の発明によれば、商用電源ラインはＡＣプラグ付きのＡＣコードであり、ＡＣプラグ内に高周波抵抗手段を設けたので、ＡＣプラグの挿入方向に関係なく商用電源ラインをアンテナとして兼用できる。   According to the second aspect of the present invention, since the commercial power line is an AC cord with an AC plug and the high frequency resistance means is provided in the AC plug, the commercial power line can be connected regardless of the insertion direction of the AC plug. Can also be used as an antenna.

また、請求項３に記載の発明によれば、高周波抵抗手段をＡＣコードに設けたので、その設ける位置が調整できる。   According to the third aspect of the present invention, since the high frequency resistance means is provided on the AC cord, the position of the high frequency resistance means can be adjusted.

また、請求項４に記載の発明によれば、高周波抵抗手段は一方の商用電源ラインが挿通する環状のフェライトコアとしたので、高周波的な抵抗を大きくできる。   According to the fourth aspect of the present invention, since the high frequency resistance means is an annular ferrite core through which one commercial power supply line is inserted, the high frequency resistance can be increased.

また、請求項５に記載の発明によれば、アンテナ接続端と一方の商用電源ラインとの結合点から高周波抵抗手段が設けられた位置までの一方の商用電ラインの長さを送信周波数又は／及び受信周波数に対応する波長の１０／〜１／４としたので、効率の良いアンテナが構成できる。   According to the fifth aspect of the present invention, the length of one commercial power line from the coupling point between the antenna connection end and one commercial power supply line to the position where the high-frequency resistance means is provided is set to the transmission frequency or / Since the wavelength corresponding to the reception frequency is 10 / to 1/4, an efficient antenna can be configured.

図１乃至図３を参照して本発明の無線通信システムを説明する。無線通信装置３１内には送信回路又は／及び受信回路３２と、この送信回路又は／及び受信回路３２に電源を供給する電源部３３とが組み込まれる。電源部３３はトランス３３ａとその二次側に接続された整流回路３３ｂとを有し、トランス３３ａの一次側にＡＣコード３４が接続される。ＡＣコード３４の先端にはＡＣプラグ３５が接続される。   The wireless communication system of the present invention will be described with reference to FIGS. In the wireless communication device 31, a transmission circuit or / and reception circuit 32 and a power supply unit 33 that supplies power to the transmission circuit or / and reception circuit 32 are incorporated. The power supply unit 33 includes a transformer 33a and a rectifier circuit 33b connected to the secondary side thereof, and an AC cord 34 is connected to the primary side of the transformer 33a. An AC plug 35 is connected to the tip of the AC cord 34.

屋外の商用電源ライン４０から屋内に引き込まれた屋内商用電源ライン４１にはＡＣコンセント４２が接続される。そして。ＡＣプラグ３５がＡＣコンセント４２に差し込まれることによって電源部３３に電源が供給され、電源部３３で変換された直流電圧が送信回路又は／及び受信回路３２に供給される。   An AC outlet 42 is connected to an indoor commercial power line 41 drawn indoors from the outdoor commercial power line 40. And then. When the AC plug 35 is inserted into the AC outlet 42, power is supplied to the power supply unit 33, and the DC voltage converted by the power supply unit 33 is supplied to the transmission circuit and / or the reception circuit 32.

ここで、送信回路又は／及び受信回路３２のアンテナ接続端３２ａ、即ち送信回路であればその出力端が、受信回路であればその入力端が無線通信装置３１内でトランス３３ａの一次側の一方に結合される。アンテナ接続端が３２ａが平衡端であれば一方がトランス３３ａの一次側に結合され、他方は接地される。従って、アンテナ接続端３２ａは商用電源ラインであるＡＣコード３４の一方３４ａに結合されることになる。さらに、一方のＡＣコード３４ａには、アンテナ接続端３２ａとの結合点から所定長離れた位置、例えば、送信周波数又は受信周波数に対応する波長の１０／乃至１／４離れた位置に、その位置よりも上流側の電源ラインと高周波的に絶縁するための高周波抵抗手段４３が設けられる。高周波抵抗手段４３は、例えば環状のフェライトコアからなり、図２に示すように、一方のＡＣコード３４ａがその中心孔に挿通される。この挿通位置はフェライトコアをＡＣコードに対して移動できるので、長さの調整が可能である。   Here, the antenna connection end 32a of the transmission circuit or / and the reception circuit 32, that is, if it is a transmission circuit, its output end is one of the primary sides of the transformer 33a in the radio communication device 31. Combined with If the antenna connection end 32a is a balanced end, one is coupled to the primary side of the transformer 33a and the other is grounded. Therefore, the antenna connection end 32a is coupled to one side 34a of the AC cord 34 which is a commercial power line. Further, one AC cord 34a has a position away from a coupling point with the antenna connection end 32a by a predetermined length, for example, a position 10 / to 1/4 of a wavelength corresponding to a transmission frequency or a reception frequency. High-frequency resistance means 43 is provided for high-frequency insulation from the upstream power supply line. The high frequency resistance means 43 is made of, for example, an annular ferrite core, and as shown in FIG. 2, one AC cord 34a is inserted through the center hole thereof. The insertion position can move the ferrite core with respect to the AC cord, so that the length can be adjusted.

このような構成にすることによって、高周波抵抗手段４３が設けられた位置の前後では、ＡＣコード３４ａが相互に高周波的に絶縁され、アンテナ接続端３２ａとの結合点から高周波抵抗手段４３が設けられた位置までのＡＣコード３４ａが送信アンテナ又は受信アンテナとして機能する。なお、図３に示すように、高周波抵抗手段４３をＡＣプラグ３５内に設けることも可能である。フェライトコアがＡＣプラグ３５内に設けられると外観上も見苦しくなく、またＡＣプラグ３５のＡＣコンセント４２への挿入方向に関係なくＡＣコード３４ａをアンテナとすることができる。そして、高周波抵抗手段４３が環状のフェライトコアである場合は、これを軸方向に２分割した２つの分割コアで構成すれば、ＡＣコードの挿通が簡単である。   With this configuration, before and after the position where the high frequency resistance means 43 is provided, the AC cords 34a are insulated from each other at high frequency, and the high frequency resistance means 43 is provided from the coupling point with the antenna connection end 32a. The AC cord 34a up to the position functions as a transmission antenna or a reception antenna. As shown in FIG. 3, the high frequency resistance means 43 can be provided in the AC plug 35. When the ferrite core is provided in the AC plug 35, the appearance is not unsightly, and the AC cord 34a can be used as an antenna regardless of the insertion direction of the AC plug 35 into the AC outlet 42. When the high-frequency resistance means 43 is an annular ferrite core, the AC cord can be easily inserted by configuring the high-frequency resistance means 43 with two divided cores that are divided into two in the axial direction.

高周波抵抗手段４３として高周波チョークコイルを使用することもできる。その場合は、図４に示すように屋内商用電源ラインの一方（ＡＣコード３４ａ）を途中で分断し、分断された双方を高周波チョークコイルによって接続すればよい。   A high frequency choke coil can also be used as the high frequency resistance means 43. In that case, as shown in FIG. 4, one of the indoor commercial power supply lines (AC cord 34a) may be divided in the middle, and the divided parts may be connected by a high-frequency choke coil.

なお、アンテナ接続端３２ａの結合点から高周波抵抗手段４３が設けられた位置までの長さが不足する場合には、屋外の商用電源ライン４０とＡＣコンセント４２との間の屋内商用電源ライン４１に高周波抵抗手段４３を設けてもよい。   When the length from the coupling point of the antenna connection end 32a to the position where the high frequency resistance means 43 is provided is insufficient, the indoor commercial power line 41 between the outdoor commercial power line 40 and the AC outlet 42 is connected. High frequency resistance means 43 may be provided.

本発明の無線通信システムの構成図である。It is a block diagram of the radio | wireless communications system of this invention. 本発明の無線通信システムにおける高周波抵抗手段の使用例を示す図である。It is a figure which shows the usage example of the high frequency resistance means in the radio | wireless communications system of this invention. 本発明の無線通信システムにおける高周波抵抗手段の使用例を示す図である。It is a figure which shows the usage example of the high frequency resistance means in the radio | wireless communications system of this invention. 本発明の無線通信システムにおける高周波抵抗手段の使用例を示す図である。It is a figure which shows the usage example of the high frequency resistance means in the radio | wireless communications system of this invention. 従来の無線通信システムの構成図である。It is a block diagram of the conventional radio | wireless communications system.

符号の説明Explanation of symbols

３１：無線通信装置
３２：送信回路又は／及び受信回路
３３：電源部
３３ａ：トランス
３３ｂ：整流回路
３４、３４ａ：ＡＣコード
３５：ＡＣプラグ
４０：屋外商用電源ライン
４１：屋内商用電源ライン
４２：ＡＣコンセント
４３：高周波抵抗手段
31: Wireless communication device 32: Transmission circuit or / and reception circuit 33: Power supply unit 33a: Transformer 33b: Rectifier circuit 34, 34a: AC cord 35: AC plug 40: Outdoor commercial power supply line 41: Indoor commercial power supply line 42: AC Outlet 43: High frequency resistance means

Claims (5)

屋内における商用電源ラインから供給されたＡＣ電圧を直流電圧に変換する電源部と、前記直流電圧によって駆動される送信回路又は／及び受信回路とを有し、前記送信回路又は／及び受信回路のアンテナ接続端を前記電源部の入力側における一方の商用電源ラインに結合し、前記アンテナ接続端と前記一方の商用電源ラインとの結合点から所定の長さ離れた屋内の前記一方の商用電源ラインに高周波抵抗手段を設けたことを特徴とする無線通信システム。 A power supply unit that converts an AC voltage supplied from an indoor commercial power supply line into a DC voltage; and a transmission circuit or / and a reception circuit driven by the DC voltage, and an antenna of the transmission circuit or / and the reception circuit A connection end is coupled to one commercial power supply line on the input side of the power supply unit, and the one commercial power supply line indoors separated by a predetermined length from a coupling point between the antenna connection end and the one commercial power supply line. A radio communication system comprising high frequency resistance means. 前記商用電源ラインはＡＣプラグ付きのＡＣコードであり、前記ＡＣプラグ内に前記高周波抵抗手段を設けたことを特徴とする請求項１に記載の無線通信システム。 2. The wireless communication system according to claim 1, wherein the commercial power line is an AC cord with an AC plug, and the high-frequency resistance means is provided in the AC plug. 前記高周波抵抗手段を前記ＡＣコードに設けたことを特徴とする請求項２に記載の無線通信システム。 The wireless communication system according to claim 2, wherein the high-frequency resistance means is provided in the AC cord. 前記高周波抵抗手段は前記一方の商用電源ラインが挿通する環状のフェライトコアとしたことを特徴とする請求項１乃至３の何れかに記載の無線通信システム。 4. The radio communication system according to claim 1, wherein the high-frequency resistance means is an annular ferrite core through which the one commercial power line is inserted. 前記アンテナ接続端と前記一方の商用電源ラインとの結合点から前記高周波抵抗手段が設けられた位置までの前記一方の商用電ラインの長さを送信周波数又は／及び受信周波数に対応する波長の１０／〜１／４としたことを特徴とする請求項１乃至４の何れかに記載の無線通信システム。
The length of the one commercial power line from the coupling point between the antenna connection end and the one commercial power supply line to the position where the high frequency resistance means is provided is a wavelength of 10 corresponding to the transmission frequency and / or the reception frequency. The wireless communication system according to claim 1, wherein the wireless communication system is set to / ˜¼.
JP2004129829A 2004-04-26 2004-04-26 Radio communication system Withdrawn JP2005311966A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101847777A (en) * 2009-03-24 2010-09-29 索尼公司 Receiving system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101847777A (en) * 2009-03-24 2010-09-29 索尼公司 Receiving system

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