JP2004297107A - Power line carrier device - Google Patents
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- JP2004297107A JP2004297107A JP2003060924A JP2003060924A JP2004297107A JP 2004297107 A JP2004297107 A JP 2004297107A JP 2003060924 A JP2003060924 A JP 2003060924A JP 2003060924 A JP2003060924 A JP 2003060924A JP 2004297107 A JP2004297107 A JP 2004297107A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/56—Circuits for coupling, blocking, or by-passing of signals
Abstract
Description
【０００１】
【産業上の利用分野】
この発明は、高速のデジタル信号により変調された高周波信号を送受信するための基地局あるいはモデムを有する広域加入者アクセス回線において、当該高周波信号を電力線あるいは配電線に結合して伝送し直接あるいは無線信号に変換して加入者端末において送受信するための電力線搬送装置に関するものである。
【０００２】
【従来の技術】
図６は特開２００２−３５４５３４に示された分散基地局の構成図である。
図６において、（１１）は有線モデムあるいは基地局、（１２ａ）は分散基地局＃１、（１２ｂ）は分散基地局＃２、（１３ａ）、（１３ｂ）、（１３ｃ）は光ケーブル、（１４）は加入者端末、（４１）（４２ａ）（４２ｂ）（４２ｃ）（４２ｄ）（４２ｅ）（４２ｆ）（４２ｇ）（４２ｈ）は接続端子、（５０ａ）（５０ｂ）（５０ｃ）（５０ｄ）は接続ケーブル、（５１ａ）（５１ｂ）は結合器、（５２ａ）（５２ｂ）（５２ｃ）（５２ｄ）（５２ｅ）（５２ｆ）は電力線あるいは配電線、（５３ａ）（５３ｂ）（５３ｃ）（５３ｄ）（５３ｅ）（５３ｆ）（５３ｇ）（５３ｈ）（５３ｉ）（５３ｊ）（５３ｋ）（５３ｍ）は接続端子、（５４）はコンセント、（５５）はプラグである。
基地局あるいは有線モデム（１１）はデジタル方式の送受信機により基地局分散装置（１２ａ）および（１２ｂ）に向けて数百Ｋｂｐｓ〜数Ｍｂｐｓの高速デジタル信号により変調された１０ＭＨｚ前後の高周波信号を送受信する。
光ケーブル（１２ａ）を経由して接続された基地局分散装置＃１（１２ａ）において、基地局あるいは有線モデム（１１）から送信された高周波信号は、分岐・増幅されて、接続ケーブル（５０ａ）（５０ｂ）によって結合器（５１ａ）に接続される。 結合器（５１ａ）には電力線あるいは配電線（５２ａ）（５２ｂ）（５２ｃ）（５２ｄ）が接続されている。
結合器（５１ａ）において、接続端子（５３ｉ）（５３ｊ）間に接続された巻線に当該高周波信号が印加されると、接続端子（５３ａ）（５３ｃ）間および（５３ｂ）（５３ｄ）間に接続されたコイルに各々黒丸印を起点とする起電力が生じ、電力線あるいは配電線（５２ａ）（５２ｂ）および（５２ｃ）（５２ｄ）にバランスした当該高周波信号を印加する。
当該高周波信号は電力線あるいは配電線（５２ｃ）（５２ｄ）間を伝搬し、家庭内に設置されたコンセント（５４）に現れ、プラグ（５５）によって加入者端末（１４）に接続される。
逆に、加入者端末（１４）から送信された高周波信号は、プラグ（５５）およびコンセント（５４）経由して、電力線あるいは配電線（５２ｃ）（５２ｄ）に接続され、結合器（５１ａ）により分散基地局＃１（１２ａ）に結合され、光ケーブル（１３ａ）に接続され、基地局あるいは有線モデム（１１）の受信機により受信される。
この際、電力線あるいは配電線（５２ｃ）（５２ｄ）に現れるアンバランスな高周波信号は、接続端子（５３ｉ）（５３ｊ）間には現れないので、放送波などの雑音による妨害を軽減できるメリットがある。
一方、ケーブル（１３ｂ）に接続された基地局分散装置＃２（１２ｂ）において、前段の分散基地局＃１（１２ａ）からの高周波信号を分岐し、接続ケーブル（５０ｃ）（５０ｄ）により結合器（５１ｂ）に接続され、電力線あるいは配電線（５２ｅ）（５２ｆ）間に結合される。
逆に、電力線あるいは配電線（５２ｅ）（５２ｆ）からの高周波信号は、結合器（５１ｂ）により分散基地局＃２（１２ｂ）に結合され、光ケーブル（１２ｂ）に結合され、基地局あるいは有線モデム（１１）の受信機により受信される。
以上に述べたように、従来の技術では、光ケーブル（１３ａ）（１３ｂ）により分散基地局＃１（１２ａ）と＃２（１２ｂ）に高周波信号を伝送し、結合器（５１ａ）および（５１ｂ）により当該高周波信号を電力線あるいは配電線（５２ａ）（５２ｂ）あるいは（５２ｃ）（５２ｄ）に結合して広域の加入者アクセス回線を構築することにより、分散基地局＃１（１２ａ）と＃２（１２ｂ）から出力される電力を小さく抑え、当該電力線あるいは配電線（５２ａ）（５２ｂ）および（５２ｃ）（５２ｄ）から漏洩される電力も小さく出来るメリットがあるが、結合器（５１ａ）と（５１ｂ）の構成が不明であり実現が難しい問題があった。
【０００３】
【発明が解決しようとする課題】
従来の技術では詳細が示されなかった高周波信号を分散基地局と電力線あるいは配電線あるいは単相３線式低圧配電線路の接地側電線利用して電力線搬送を実現する事を目的とする。
【０００４】
【課題を解決するための手段】
この発明に係る基地局分散装置は、基地局あるいはモデムの送受信機から入出力される高周波信号のままで電力線あるいは配電線に結合することで経済化を図る事が可能となる。
請求項の第１項では、当該高周波信号を複数箇所に設けた分散基地局により電力線あるいは配電線の少なくとも１本の電線に結合しあるいは少なくとも２本の電線間に結合することにより結合点での高周波電力を軽減し当該電力線るいは配電線から放射される電波を少なく抑えることにより電波法を満足させることができる。
請求項の第２項では、当該高周波信号を電力線あるいは配電線の単相３線式低圧配電線路の接地側電線に結合することで伝送路を構成し加入者端末に共通にアクセスができる。
請求項の第３項では、当該高周波信号を電力線あるいは配電線の単相３線式低圧配電線路の接地側電線と大地との間で結合することで伝送路を構成し加入者端末にアクセスができる。
請求項の第４項では、当該高周波信号を電力線あるいは配電線の単相３線式低圧配電線路の接地側電線と非接地側電線との間に比較的に低いインピーダンスを呈するフイルタあるいは進相コンデンサを接続して構成した伝送路に結合することで加入者端末にアクセスができる。
請求項の第５項では、当該高周波信号を集合住宅の受電盤あるいはその近くに設けた分散基地局と結合器により屋内配電線路の接地側電線と非接地側電線との間あるいは接地側電線と大地との間で形成した伝送路に結合することで加入者端末にアクセスができる。
請求項の第６項では、当該高周波信号を集合住宅の受電盤あるいはその近くに設けた分散基地局と結合器により屋内配電線路の接地側電線と非接地側電線との間に比較的に低いインピーダンスを呈するフイルタあるいは進相コンデンサを接続して構成した伝送路に結合することで加入者端末にアクセスができる。
請求項の第７項では、当該高周波信号が５ＭＨｚ以上４００ＭＨｚ以下あるいは上り方向の流合雑音が少なく当該高周波信号の伝送損失が少ない周波数帯のキャリアを当該高速のデジタル信号により変調したものである。
請求項の第８項では、当該高周波信号を電力線あるいは配電線の電線の表面を伝送する表面波あるいは進行波に変換し、高周波エネルギーを当該電力線あるいは配電線の電線表面に閉じ込めることにより放射される電波を少なく抑えることにより電波法を満足させることができる。
請求項の第９項では、当該高周波信号を磁流あるいは磁界により結合することにより表面波あるいは進行波による結合を実現する。
請求項の第１０項では、当該中継局の結合器がワットメータあるいは屋内配電盤の近くに設置され当該高周波信号に対して引込み線と屋内配線を切り離し当該中継局が屋内に対して無線中継を行う。
請求項の第１１項では、当該中継局の結合器がワットメータあるいは屋内配電盤の近くに設置され当該高周波信号に対して引込み線と屋内配線を切り離し当該中継局が屋内配線に対して有線中継を行う。
請求項の第１２項では、当該結合器が当該電力線あるいは配電線を２次巻線とし、空心あるいは磁性体のコアを介して１次巻線を設けて当該高周波信号を接続し当該高周波信号を磁流あるいは高周波磁界に変換して伝送する。
請求項の第１３項では、当該当該電力線あるいは配電線の電線と一部を共有するループを構成することで当該高周波信号を磁流あるいは高周波磁界に変換して伝送する。
請求項の第１４項では、コンデンサを接続して、当該高周波信号の周波数に共振させることで漏洩磁束の影響を避けてインピーダンスの変換を容易にする。
請求項の第１５項では、当該結合器が電力線あるいは配電線を内部導体とする同軸共振器により構成され、あるいはインピーダンス変換器により構成され表面波あるいは進行波を一方向に伝送させることができる。
請求項の第１６項では、当該結合器が高周波信号を電力線あるいは配電線の一方向にのみ伝送させることで反射波の影響を軽減する。
請求項の第１７項では、当該結合器の巻線に誘起する交流電圧により基地局分散装置に給電することで当該結合器を地面から絶縁することができる。
請求項の第１８項では、当該分散基地局と結合手段が地面に対して絶縁されており当該高周波信号が光ケーブルにより接続されており、電線に落雷したときのサージ電圧から保護される。
請求項の第１９項では、当該電力線あるいは配電線の開放端を無反射終端しあるいは当該中継局あるいは加入者端末のための結合器により無反射終端をすることで損失が少なく、安定な伝送線路を確保する。
請求項の第２０項では、当該結合器からの電波漏洩を抑圧するための対策を採ることで電波法を阻害すること防止する。
請求項の第２１項では、当該電線の絶縁皮膜が高誘電率の材料でありあるいは絶縁皮膜の外周に間隔をおいて金属環が設けられあるいは絶縁皮膜の外周に第３の電線がらせん状に巻きつけられ当該高周波信号を表面波あるいは進行波として伝送することで空間への放射を軽減することができる。
請求項の第２２項では、当該伝送路が移動無線の伝送路と等価な性質を有するので伝搬損失の許容値に２０ｄＢ程度の余裕をもたせるものとする。
【０００５】
【作用】
この発明において、当該電力線あるいは配電線により伝送される高周波信号は比較的に小電力でありあるいは電線の表面波あるいは進行波により伝送されるため電線から放射される電波が少なく電波法の規定を満足することができる。
【０００６】
【実施例】
以下、本発明の実施例を図に従って説明する。図１において、（１１）は有線モデムあるいは基地局、（１２ａ）は分散基地局＃１、（１２ｂ）は分散基地局＃２、（１３ａ）、（１３ｂ）、（１３ｃ）は光ケーブル、（１４）は加入者端末、（１５）は結合器、（１６）は中継局、（１７）は加入者無線端末、（４１）（４２ａ）（４２ｂ）（４２ｃ）（４２ｄ）（４２ｅ）（４２ｆ）（４２ｇ）（４２ｈ）は接続端子、（４３ａ）（４３ｂ）は付加インピーダンス、（５０ａ）（５０ｂ）（５０ｃ）（５０ｄ）は接続ケーブル、（５１ａ）（５１ｂ）は結合器、（５２ａ）（５２ｂ）（５２ｃ）（５２ｄ）（５２ｅ）（５２ｆ）は電力線あるいは配電線、（５３ａ）（５３ｂ）（５３ｃ）（５３ｄ）（５３ｅ）（５３ｆ）（５３ｇ）（５３ｈ）（５３ｉ）（５３ｊ）（５３ｋ）（５３ｍ）は接続端子、（５４）はコンセント、（５５）はプラグ、（５７ａ）（５７ｂ）（５７ｃ）（５７ｄ）（５７ｅ）（５７ｆ）は接続端子である。
基地局あるいは有線モデム（１１）に内蔵されるデジタル方式の送受信機から基地局分散装置（１２ａ）および（１２ｂ）に向けて数百Ｋｂｐｓ〜数十Ｍｂｐｓの高速デジタル信号により変調された５〜３００ＭＨｚの高周波信号を送受信する。
光ケーブル（１２ａ）を経由して接続された基地局分散装置＃１（１２ａ）において、基地局あるいは有線モデム（１１）から送信された高周波信号は、分岐・増幅されて、接続ケーブル（５０ａ）（５０ｂ）によって結合器（５１ａ）に接続される。 結合器（５１ａ）には電力線あるいは配電線（５２ａ）（５２ｂ）（５２ｃ）（５２ｄ）が接続されている。
当該結合器（５１ａ）において、接続端子（５３ｉ）（５３ｊ）間に接続された巻線に当該高周波信号が印加されると、接続端子（５３ａ）（５３ｃ）間および（５３ｂ）（５３ｄ）間に接続されたコイルに各々黒丸印を起点とする起電力が生じ、電力線あるいは配電線（５２ａ）（５２ｂ）および（５２ｃ）（５２ｄ）に同一位相あるいは逆相の高周波信号を結合する。
当該高周波信号は電力線あるいは配電線（５２ｃ）（５２ｄ）間を伝搬し、中継局（１６）に近い地点に設置された結合器（１５）の接続端子（５７ａ）、（５７ｂ）、（５７ｃ）、（５７ｄ）を経由して、家庭内に設置されたコンセント（５４）に現れ、プラグ（５５）によって加入者端末（１４）に接続され、大地を帰路として分散基地局あるいは送受信機に伝送される。
一方、結合器（１５）の接続端子（５７ｅ）（５７ｆ）の間にも当該高周波信号が誘起し、中継局（１６）により無線信号に変換され、加入者無線端末（１７）により送受信される。
逆に、加入者端末（１４）あるいは中継局（１６）から送信された高周波信号は、プラグ（５５）およびコンセント（５４）を経由しあるいは結合器（１５）を介して、電力線あるいは配電線（５２ｃ）（５２ｄ）に接続され、結合器（５１ａ）により分散基地局＃１（１２ａ）に結合され、光ケーブル（１３ａ）に接続され、基地局あるいは有線モデム（１１）の受信機により受信される。
この際、電力線あるいは配電線（５２ｃ）（５２ｄ）間に加えられた交流電力あるいは家電品あるいは動力機器によって発生する雑音は、接続端子（５３ｉ）（５３ｊ）間にたしては十分に減衰するので、これらによって発生する妨害を軽減できるメリットがある。
一方、ケーブル（１３ｂ）に接続された基地局分散装置＃２（１２ｂ）において、前段の分散基地局＃１（１２ａ）からの高周波信号を分岐し、接続ケーブル（５０ｃ）（５０ｄ）により結合器（５１ｂ）に接続され、電力線あるいは配電線（５２ｅ）（５２ｆ）間に結合される。
逆に、電力線あるいは配電線（５２ｅ）（５２ｆ）からの高周波信号は、結合器（５１ｂ）により分散基地局＃２（１２ｂ）に結合され、光ケーブル（１２ｂ）に結合され、基地局あるいは有線モデム（１１）の受信機により受信される。
以上に述べたように、２本の配電線に同一の位相で当該高周波信号を結合しあるいは２本の配電線に同一の位相で当該高周波信号を結合し大地を帰路として伝送線路を構成することによって従来の技術で問題になっていた商用電力の配電と共存するために受けていたＡＣ１００Ｖあるいは雑音等による干渉や妨害を改善できる。
ここで、結合器（５１ａ）（５１ｂ）（１５）において、当該高周波信号は電力線あるいは配電線（５２ａ）（５２ｂ）（５２ｃ）（５２ｄ）（５２ｅ）（５２ｆ）の複数の電線に対して同一の位相で結合され、家庭内の加入者端末あるいは電機製品を経由して大地を帰路とするループを形成することで家庭内の広い範囲で送受信できるメリットがある。
また、中継局（１６）を接続する結合器（１５）において、無反射の終端を行い接地側電線と非接地側電線との間あるいは大地への帰還ループを構成すれば、屋内に設置した家電品による影響を排除でき、これらからの干渉あるいは妨害を除去できる。
また、中継局（１６）当該高周波信号に対して当該電力線あるいは配電線（５２ａ）（５２ｂ）（５２ｃ）（５２ｄ）（５２ｅ）（５２ｆ）側と屋内とを分離し当該高周波信号を無線周波数に変換し屋内に設置されたアンテナにより加入者無線端末（１７）に対して無線中継を行うことも可能である。
また、中継局（１６）により当該高周波信号に対して当該電力線あるいは配電線（５２ａ）（５２ｂ）（５２ｃ）（５２ｄ）（５２ｅ）（５２ｆ）側と屋内とを分離し当該高周波信号を直接あるいは別の高周波信号に変換し屋内配線に再結合して有線中継を行うことも可能である。
また、使用する電線の絶縁皮膜に高誘電率の材料を用いあるいは絶縁皮膜の外周に金属環を間隔を置いて設けあるいは絶縁皮膜の外周に第３の電線を並行あるいはらせん状に配置することにより当該高周波信号を表面はあるいは進行はとして伝送し外部への放射を軽減することができる。
また、使用する電線の絶縁皮膜の外周に第３の電線を並行あるいはらせん状に配置して伝送路とし当該高周波信号を伝送することで外部への放射を軽減することができる。
また、線の絶縁皮膜の外周に第３の電線を並行あるいはらせん状に配置して伝送路とし当該高周波信号を伝送することで外部への放射を軽減することができる。また、接地側電線と非接地側電線との間あるいは非接地側電線間で帰還ループを構成する際、結合器（５１ａ）の接続端子（５３ａ）（５３ｂ）の間および結合器（１５）の接続端子（５７ｃ）（５７ｄ）の間に、当該高周波信号に対して短絡状態であり商用電源に対しては開放状態である付加インピーダンス（４３ａ）（４３ｂ）あるいは同様な特性を呈する素子あるいは回路を接続することでループ状の伝送路が構成でき同様な効果が得られる。
また、当該高周波信号のキャリア周波数として５ＭＨｚから３００ＭＨｚまでの広い周波数範囲で伝送損失が比較的に少なくインバータなどによる雑音も少なく、電力線あるいは配電線の引き込み線が多肢に枝分かれすることで生じる定在波は移動無線におけるマルチパスと等価であり、許容伝送損失に２０ｄＢ程度のマージンをとることで信頼性の高い通信が可能となることが分かった。
【０００７】
図２は、本発明の他の実施例を示す構成図であり、（１１）は有線モデムあるいは基地局、（１２ａ）は分散基地局＃１、（１２ｂ）は分散基地局＃２、（１３ａ）、（１３ｂ）、（１３ｃ）は光ケーブル、（１４）は加入者端末、（１５）は結合器、（１６）は中継局、（１７）は加入者無線端末、（４１）（４２ａ）（４２ｂ）（４２ｃ）（４２ｄ）（４２ｅ）（４２ｆ）（４２ｇ）（４２ｈ）は接続端子、（５０ａ）（５０ｂ）（５０ｃ）（５０ｄ）は接続ケーブル、（５１ａ）（５１ｂ）は結合器、（５２ａ）（５２ｂ）（５２ｃ）（５２ｄ）（５２ｅ）（５２ｆ）（５２ｇ）（５２ｈ）は単相３線式低圧配電線、（５３ａ）（５３ｃ）（５３ｅ）（５３ｇ）（５３ｉ）（５３ｊ）（５３ｋ）（５３ｍ）は接続端子、（５４）はコンセント、（５５）はプラグ、（５７ｂ）（５７ｄ）（５７ｅ）（５７ｆ）は接続端子、（５８ａ）（５８ｂ）は柱上トランス、（５９ａ）（９７ｂ）（５９ｃ）（５９ｄ）（５９ｅ）（５９ｆ）は接続端子、（６０ａ）（６０ｂ）（６０ｃ）（６０ｄ）は接続用の電線、（６１ａ）（６１ｂ）は高圧配電線である。
電力線あるいは配電線（５２ｃ）（５２ｄ）および（５２ｅ）（５２ｆ）は、高圧配電線（６１ａ）（６１ｂ）に接続された柱上トランス（５８ａ）（５８ｂ）の単相３線式低圧配電線の接地側端子（５９ｉ）（５９ｊ）に接続されている。そこで、高圧配電線（６１ａ）（６１ｂ）に高周波信号を結合して伝送しても柱上トランス（５８ａ）（５８ｂ）を介して単相３線式低圧配電線（５２ｂ）（５２ｃ）（５２ｄ）および（５２ｆ）（５２ｇ）（５２ｈ）まで伝送することが難しいので、結合器（５１ａ）（５１ｂ）を柱上トランス（５８ａ）（５８ｂ）の単相３線式低圧配電線の接地側端子（５９ｉ）（５９ｊ）に接続して単相３線式低圧配電線（５２ａ）（５２ｅ）に当該高周波信号を結合する。
単相３線式低圧配電線（５２ａ）（５２ｂ）（５２ｅ）（５２ｆ）に結合された高周波信号は、一方は当該電線（５２ａ）（５２ｅ）の表面波あるいは進行波によって伝送し、他方は接地線（５２ｂ）（５２ｆ）によって大地に拡散される。当該電線（５２ａ）（５２ｅ）に結合された当該高周波信号はほとんどが電流の変換に変換され、磁流あるいは高周波磁界となるため、空間に放射される割合が極めて小さく、ほとんどが表面波あるいは進行波となって伝搬する。
また、当該高周波信号の周波数が比較的に低く波長が長い時には、電線の湾曲部があってもその個所で空間に放射する割合が小さいので、当該電線に結合された高周波信号はほとんどが当該単相３線式低圧配電線（５２ａ）５２ｅ）およびこれらの電線の支線の先まで少ない減衰で到達する。
当該単相３線式低圧配電線（５２ａ）（５２ｅ）により伝送された高周波信号は、ワットメータ内またはその近くに設置された中継局（１６）により無線信号に変換され、加入者無線端末（１７）により送受信される。
ここで、ワットメータ内に中継局（１６）を設置し無反射終端を行い大地への帰還ループを構成すると、屋内に設置された家電品などが対地アースされている場合でも、建物への入り口に設置されているワットメータあるいは屋内配電盤の地点で無反射接地線を設けて切り離されているので家電品の影響を受けないメリットがある。
あるいは、当該低圧配電線の接地点の近くに接地側電線と非接地側電線の間に当該高周波信号の周波数帯に対しては比較的に低いインピーダンスを呈し商用電力に周波数に対しては比較的に高いインピーダンスを呈するフイルタあるいは進相コンデンサを接続して当該２線路間あるいは当該２線路と大地との間でループ状の伝送線路を形成しても同様な効果が得られる。
また、中継局（１６）を接続する結合器（１５）において、無反射の終端を行い接地側電線と非接地側電線との間あるいは当該接地側電線と非接地側電線と大地との間で帰還ループを構成すれば、屋内に設置した家電品による影響を排除でき、これらからの干渉あるいは妨害を除去できる。
また、中継局（１６）当該高周波信号に対して当該低圧配電線（５２ｂ）（５２ｃ）（５２ｄ）および（５２ｆ）（５２ｇ）（５２ｈ）側と屋内配線とを分離し当該高周波信号を無線周波数に変換し屋内に設置されたアンテナにより加入者無線端末（１７）に対して無線中継を行うことも可能である。
また、中継局（１６）により当該高周波信号に対して当該低圧配電線（５２ｂ）（５２ｃ）（５２ｄ）および（５２ｆ）（５２ｇ）（５２ｈ）側と屋内配線とを分離し当該高周波信号を直接あるいは別の高周波信号に変換し屋内配線に再結合して有線中継を行うことも可能である。
また、使用する電線の絶縁皮膜に高誘電率の材料を用いあるいは絶縁皮膜の外周に金属環を間隔を置いて設けあるいは絶縁皮膜の外周に第３の電線あるいは金属テープを並行あるいはらせん状に配置することにより当該高周波信号を表面はあるいは進行はとして伝送し外部への放射を軽減することができる。
また、使用する電線の絶縁皮膜の外周に第３の電線あるいは金属テープを並行あるいはらせん状に配置し当該電線と当該第３の電線あるいは金属テープとの間で伝送路を構成し当該高周波信号を伝送することで外部への放射を軽減することができる。
また、集合住宅、オフイスビルあるいは工場などでは、高圧電力線あるいは高圧配電線を受電する受電盤内あるいはその近くに分散基地局あるいは送受信機を設置することで、集合住宅内、ビル内あるいは工場内の屋内配電線を利用して当該高周波信号を伝送することができる。実験の結果では、５ＭＨｚから３００ＭＨｚまでの広い周波数範囲で伝送損失が比較的に少なくインバータなどによる雑音も少なく、屋内配電線が多肢に枝分かれすることで生じる定在波は移動無線におけるマルチパスと等価であり、許容伝送損失に２０ｄＢ程度のマージンをとることで信頼性の高い通信が可能となることが分かった。
【０００８】
図３ａ、３ｂは本発明の他の実施例を示す構成図であり、図３ａにおいて、（５７ｂ）（５７ｄ）（５７ｅ）（５７ｆ）は接続端子、（７１）は磁性体、（７２）は電線で２次巻線、（７３）は１次巻線である。
接続端子（５７ｂ）（５７ｄ）には電力線あるいは配電線が接続され、接続端子（５７ｅ）（５７ｆ）には分散基地局から送受信される高周波信号出力が接続されている。分散基地局から出力される高周波信号が巻線（７３）に流れると２次巻線（７２）に高周波の磁流が流れ表面波あるいは進行波となって電力線あるいは配電線の電線（７２）の表面波あるいは進行波によって伝送される。
逆に、電力線あるいは配電線の電線（７２）によって伝送された表面波あるいは進行波は、１次巻線（７３）に結合され、分散基地局によって受信される。
ここで、磁性体７１は１次巻線と２次巻線に対して漏洩磁束が生じないように構成されていると広帯域の結合トランスとなる。また、電力線あるいは配電線の表面に流れる表面波あるいは進行波は電線の表面に長く留まって伝送され、従って、無線信号となって放射される度合いが非常に少ないことから、電力線あるいは配電線を利用した広域伝送に最適である。
図３ｂにおいて、７４は３次の巻線であり、これに共振用のコンデンサ７５が接続されている。磁性体７１は１次巻線と２次巻線に対して漏洩磁束が生じる場合にこれを打ち消して挿入損失の少ないトランスを実現する場合に相当する。
また、上記の説明では磁性体のコアを用いる場合について説明したが、空心のコイルを結合させても同様な効果が得られる。
また、上記の説明では一体の磁性体のコアを用いる場合について説明したが、２分割したフエライトコアなどを用いることで容易に着脱することが出来る。
【０００９】
図４ａ、４ｂ、４Ｃは本発明の他の実施例を示す構成図であり、図４ａにおいて、（５７ｂ）（５７ｄ）（５７ｅ）（５７ｆ）は接続端子、（７２）は電線、（８１ａ）（８１ｂ）はループ、（８２）（８２ａ）（８２ｂ）はコンデンサである。
接続端子（５７ｂ）（５７ｄ）には電力線あるいは配電線が接続され、接続端子（５７ｅ）（５７ｆ）には分散基地局から送受信される高周波信号出力が接続されている。
当該電線（７２）の一部とループ（８１ａ）（８１ｂ）とは全体でループを構成しており、分散基地局から出力される高周波信号がループ（８１ａ）、電線（７２）、およびループ（８１ｂ）に流れると当該電線（７２）に高周波の磁流が流れ表面波あるいは進行波となって電力線あるいは配電線の電線（７２）の表面波あるいは進行波によって伝送される。
逆に、電力線あるいは配電線の電線（７２）によって伝送された表面波あるいは進行波は、ループ（８１ａ）、電線（７２）、およびループ（８１ｂ）に結合され、当該分散基地局によって受信される。
ここで、ループの断面積を小さくするか外部をシールドで覆うなどすると、空間に放射される電力が抑えられ広帯域の結合トランスとって、当該高周波信号は電力線あるいは配電線の表面に流れる表面波あるいは進行波に変換され、電線の表面に長く留まって伝送され、従って、無線信号となって放射される度合いが非常に少ないことから、電力線あるいは配電線を利用した広域伝送に最適である。
図４ｂにおいて、ループ（８１ａ）（８１ｂ）と直列に共振用のコンデンサ（８２ａ）（８２ｂ）が接続されており、全体として当該高周波信号の周波数と共振するか共振の近くに設定されている。
図４ｃでは、、ループ（８１ａ）（８１ｂ）と並列に共振用のコンデンサ（８２）が接続されており、全体として当該高周波信号の周波数と共振するか共振の近くに設定されている。
図４ｂと図４ｃの構成により、ループ（８１ａ）（８１ｂ）を小型化できるメリットがある。また図４ｂではコンデンサ（８２ａ）（８２ｂ）により電力線あるいは配電線の電圧を軽減できる。
【００１０】
図５ａ、５ｂは、本発明の他の実施例を示す構成図であり、（５７ｂ）（５７ｄ）は接続端子、（７２）は電線、（９１）は外部導体、（９２）はテーパ、（９３）は誘電体、（９４）は同軸ケーブル、（９５）は結合ループ、（９６）はコイルである。
当該分散基地局から出力される高周波信号は、同軸ケーブル（９４）を通して結合ループ（９５）に加えられると、外部導体（９１）と電線（７２）あるいは電線（７２）とコイル（９６）および誘電体（９３）によって構成された共振器によって電線（７２）あるいは電線（７２）とコイル（９２）に磁流あるいは共振電流が発生し表面波あるいは進行波となって接続端子（５７ｂ）の方向に伝送される。
逆に、接続端子（５７ｂ）の方向から伝送された高周波信号は、外部導体（９１）と電線（７２）および誘電体（９３）共振器によって結合ループ（９５）に結合し、同軸ケーブル（９４）を通じて分散基地局によって受信される。
ここで、テーパ（９２）は当該共振器から表面波あるいは進行波を発生させる際のインピーダンスの変化を滑らかにして空間に無線信号として放射されるのを防止するためのものである。
また、誘電体（９３）の代わりに、内部導体（７２）あるいはコイル（９６）を外部導体（９１）に支えるが固定するための支持物に置き換えることができる。また、結合ループ（９５）は内部導体（７２）あるいはコイル（９６）に直接接続し（タップをとる）あるいは内部導体（７２）あるいはコイル（９６）と結合トランスを構成することもできる。
また、テーパ（９２）と内部の誘電体（９３）のいずれかあるいは両方は、支持用の碍子あるいはジョイントあるいは他の手段に置き換えても同様な効果が発揮できる。
また、テーパ（９２）の代わりに平板あるいは湾曲状の反射板を設けることもできる。
また、テーパ（９２）の代わりに当該電線（７２）の絶縁皮膜の外周に第３の電線あるいは金属テープをらせん状に巻きつけその一方の端を接続することで同様な効果を得ることができる。
また、当該電線（７２）の絶縁皮膜に高誘電率の材料を用いあるいは絶縁皮膜の外周に金属環を間隔を置いて設けあるいは絶縁皮膜の外周に第３の電線あるいは金属テープを並行あるいはらせん状に配置することで表面波あるいは進行波の伝送を容易にすることができる。
【００１１】
以上の説明で例として上げた結合器の他に、電線の表面波あるいは進行波を生成しあるいは受信する物理的な手段を用いる結合器を適用しても同様な効果が得られる。
また、当該表面波あるいは進行波による伝送の他に、磁流による伝送あるいはループ状線路による伝送等当該高周波信号を１本の電線に結合して伝送する物理的な手段を用いることで同様な効果が得られる。
また、当該高周波信号の周波数は、５〜１０ＭＨｚ帯に限らず、数百ＫＨｚから数十ＧＨｚ帯までの任意の周波数帯を用いることができ、問題となる上り方向の流合雑音（インバータを用いた電気機器から発生する比較的に低い周波数の雑音）が少ない周波数帯を選択できる。
また、電力線あるいは配電線あるいは屋内配線を平行２線あるいは平行３線あるいは任意の線数の平行線とし当該高周波信号を表面波あるいは進行波として伝送させることも可能である。
また、当該高周波信号は、１．９ＧＨｚ帯のＰＨＳあるいは２．４ＧＨｚ帯あるいは５ＧＨｚ帯の無線ＬＡＮあるいは任意の周波数帯でよく、変調方式もＱＡＭあるいはＯＦＤＭＡあるいは任意の方式でよく、何れの場合でも、ダウンコンバータとアップコンバータを用いて５〜１０ＭＨｚの周波数帯に変換して当該伝送路を伝送させ、中継局によって元の周波数に変換して無線信号として送受信することが出来る。
また、当該分散基地局を当該電力線あるいは配電線あるいは単相３線式低圧配電線に結合する代わりに集合住宅などでは受電設備あるいは屋内配電盤の内部あるいは近辺において当該高周波信号を結合し各加入者宅のワットメータあるいは屋内に中継局あるいは加入者端末を設置しても同様な効果が得られる。
【００１２】
【発明の効果】
本発明は、上記のように構成されるため、電力線あるいは配電線を利用して、ラスト１マイルを安価なコストの広域の加入者アクセス回線が構築でき、高速のデータ通信が可能となる。
【図面の簡単な説明】
【図１】本発明の一実施例を示す構成図である。
【図２】本発明の他の実施例を示す構成図である。
【図３】本発明の他の実施例を示す構成図である。
【図４】本発明の他の実施例を示す構成図である。
【図５】本発明の他の実施例を示す構成図である。
【図６】従来の例を示す構成図である。
【符号の説明】
１１ 基地局あるいは有線モデム
１２ａ、１２ｂ 分散基地局
１３ａ、１３ｂ、１３ｃ 光ケーブル
１４、１４ａ、１４ｂ 加入者端末
１５ 結合器
１６ 中継局
１７ 加入者無線端末
４１、４２ａ、４２ｂ、４２ｃ 接続端子
４２ｄ、４２ｅ、４２ｆ、４２ｇ、４２ｈ 接続端子
４３ａ、４３ｂ 付加インピーダンス
５０ａ、５０ｂ、５０ｃ、５０ｄ 接続ケーブル
５１ａ、５１ｂ 結合器
５２ａ、５２ｂ、５２ｃ、５２ｄ 単相３線式低圧配電線
５２ｅ、５２ｆ、５２ｇ、５２ｈ 単相３線式低圧配電線
５３ａ、５３ｂ、５３ｃ、５３ｄ、５３ｅ 接続端子
５３ｆ、５３ｇ、５３ｈ、５３ｉ、５３ｊ 接続端子
５３ｋ、５３ｍ 接続端子
５４ コンセント
５５ プラグ
５７ａ、５７ｂ、５７ｃ、５７ｅ、５７ｆ 接続端子
５８ａ、５８ｂ 柱上トランス
５９ａ、５９ｂ、５９ｃ、５９ｄ、５９ｅ 接続端子
５９ｆ、５９ｇ、５９ｈ 接続端子
６０ａ、６０ｂ、６０ｃ、６０ｄ 接続ケーブル
６１ａ、６１ｂ 高圧配電線
７１ 磁性体
７２ 電線で２次巻線
７３ １次巻線
７４ ３次巻線
７５ コンデンサ
８１ａ、８１ｂ ループ
８２、８２ａ、８２ｂ コンデンサ
９１ 外部導体
９２ テーパ
９３ 誘電体
９４ 同軸ケーブル
９５ 結合ループ
９６ コイル[0001]
[Industrial applications]
The present invention relates to a wide area subscriber access line having a base station or a modem for transmitting and receiving a high-frequency signal modulated by a high-speed digital signal. The present invention relates to a power line carrier device for transmitting and receiving at a subscriber terminal.
[0002]
[Prior art]
FIG. 6 is a configuration diagram of the distributed base station disclosed in JP-A-2002-354534.
In FIG. 6, (11) is a wired modem or base station, (12a) is a distributed base station # 1, (12b) is a distributed base station # 2, (13a), (13b), (13c) are optical cables, and (14) ) Is a subscriber terminal, (41) (42a) (42b) (42c) (42d) (42e) (42f) (42g) (42h) are connection terminals, (50a) (50b) (50c) (50d) Connection cables, (51a) (51b) are couplers, (52a) (52b) (52c) (52d) (52e) (52f) are power lines or distribution lines, (53a) (53b) (53c) (53d) ( 53e) (53f) (53g) (53h) (53i) (53j) (53k) (53m) are connection terminals, (54) is an outlet, and (55) is a plug.
The base station or the wired modem (11) transmits and receives a high-frequency signal of about 10 MHz modulated by a high-speed digital signal of several hundred Kbps to several Mbps to the base station dispersion devices (12a) and (12b) by a digital transceiver. I do.
In the base station dispersing apparatus # 1 (12a) connected via the optical cable (12a), the high-frequency signal transmitted from the base station or the wired modem (11) is branched and amplified, and the connection cable (50a) ( It is connected to the coupler (51a) by 50b). Power lines or distribution lines (52a) (52b) (52c) (52d) are connected to the coupler (51a).
In the coupler (51a), when the high-frequency signal is applied to the winding connected between the connection terminals (53i) and (53j), between the connection terminals (53a) and (53c) and between the connection terminals (53b) and (53d). An electromotive force starting from a black circle is generated in each of the connected coils, and the balanced high-frequency signals are applied to power lines or distribution lines (52a) (52b) and (52c) (52d).
The high-frequency signal propagates between power lines or distribution lines (52c) and (52d), appears at an outlet (54) installed in the home, and is connected to the subscriber terminal (14) by a plug (55).
Conversely, the high-frequency signal transmitted from the subscriber terminal (14) is connected to the power line or the distribution lines (52c) (52d) via the plug (55) and the outlet (54), and is connected by the coupler (51a). It is coupled to a distributed base station # 1 (12a), connected to an optical cable (13a), and received by a base station or a receiver of a wired modem (11).
At this time, the unbalanced high-frequency signal appearing on the power line or the distribution lines (52c) (52d) does not appear between the connection terminals (53i) (53j), so that there is an advantage that interference due to noise such as broadcast waves can be reduced. .
On the other hand, in the base station dispersing apparatus # 2 (12b) connected to the cable (13b), the high-frequency signal from the preceding distributed base station # 1 (12a) is branched and coupled by the connecting cables (50c) (50d). (51b) and is connected between the power lines or distribution lines (52e) and (52f).
Conversely, high frequency signals from the power lines or distribution lines (52e) (52f) are coupled to the distributed base station # 2 (12b) by the coupler (51b), coupled to the optical cable (12b), and connected to the base station or the wired modem. It is received by the receiver of (11).
As described above, in the conventional technology, high-frequency signals are transmitted to the distributed base stations # 1 (12a) and # 2 (12b) by the optical cables (13a) (13b), and the couplers (51a) and (51b) are transmitted. By connecting the high-frequency signal to power lines or distribution lines (52a) (52b) or (52c) (52d) to construct a wide area subscriber access line, distributed base stations # 1 (12a) and # 2 ( 12b), the power output from the power lines or the distribution lines (52a) (52b) and (52c) (52d) can be reduced, but the couplers (51a) and (51b) There is a problem that the configuration is unknown and difficult to realize.
[0003]
[Problems to be solved by the invention]
It is an object of the present invention to realize power line transport using a high-frequency signal, which has not been described in detail in the prior art, by using a distributed base station and a power line, a distribution line, or a ground side electric line of a single-phase three-wire low-voltage distribution line.
[0004]
[Means for Solving the Problems]
The base station dispersing apparatus according to the present invention can achieve economical efficiency by connecting to a power line or a distribution line with high-frequency signals input and output from a base station or a modem transceiver.
According to the first aspect of the present invention, the high-frequency signal is connected to at least one of power lines or distribution lines by a distributed base station provided at a plurality of locations, or is connected between at least two lines, so that the high-frequency signal is connected at a connection point. The Radio Law can be satisfied by reducing high-frequency power and reducing radio waves radiated from the power line or distribution line.
According to the second aspect of the present invention, the transmission line is formed by connecting the high-frequency signal to a ground line of a single-phase three-wire low-voltage distribution line of a power line or a distribution line, thereby enabling common access to subscriber terminals.
According to the third aspect of the present invention, the high-frequency signal is connected between the ground line of the power line or the single-phase three-wire low-voltage distribution line of the distribution line and the ground, and the transmission line is configured to access the subscriber terminal. it can.
According to a fourth aspect of the present invention, a filter or a phase-advancing capacitor exhibiting a relatively low impedance between a ground side wire and a non-ground side wire of a single-phase three-wire low-voltage distribution line of a power line or a distribution line. Can be connected to a transmission line configured to access the subscriber terminal.
In the fifth aspect of the present invention, the high-frequency signal is transmitted between the ground-side electric wire and the ungrounded-side electric wire or the ground-side electric wire of the indoor power distribution line by the distribution base station and the coupler provided near or at the power receiving panel of the apartment house. By connecting to a transmission line formed between the terminal and the ground, the subscriber terminal can be accessed.
In the sixth aspect of the present invention, the high-frequency signal is relatively low between the ground-side electric wire and the non-ground-side electric wire of the indoor power distribution line by the distribution base station and the coupler provided in or near the power receiving panel of the apartment house. The subscriber terminal can be accessed by coupling to a transmission line formed by connecting a filter or a phase-advancing capacitor exhibiting impedance.
According to a seventh aspect of the present invention, the high-frequency signal is modulated by the high-speed digital signal on a carrier in a frequency band of 5 MHz or more and 400 MHz or less, or in a frequency band where the inflow noise in the upward direction is small and the transmission loss of the high-frequency signal is small.
In the eighth aspect of the present invention, the high-frequency signal is converted into a surface wave or a traveling wave transmitted on the surface of a power line or a distribution line, and the high-frequency energy is radiated by confining the high-frequency energy on the power line or the distribution line. By minimizing radio waves, the Radio Law can be satisfied.
In the ninth aspect of the present invention, the high-frequency signal is coupled by a magnetic current or a magnetic field, thereby realizing coupling by a surface wave or a traveling wave.
In the tenth aspect of the present invention, the coupler of the relay station is installed near a wattmeter or an indoor switchboard, disconnects the service line and the indoor wiring for the high-frequency signal, and the relay station wirelessly relays indoors. .
In the eleventh aspect of the present invention, the coupler of the relay station is installed near a wattmeter or an indoor switchboard, disconnects the service line and the indoor wiring for the high-frequency signal, and the relay station relays a wired relay to the indoor wiring. Do.
In the twelfth aspect of the present invention, the coupler uses the power line or the distribution line as a secondary winding, provides a primary winding through an air core or a magnetic core, connects the high frequency signal, and connects the high frequency signal. It is converted into a magnetic current or a high-frequency magnetic field and transmitted.
According to a thirteenth aspect of the present invention, the high-frequency signal is converted into a magnetic current or a high-frequency magnetic field and transmitted by forming a loop that shares part of the power line or the distribution line.
According to a fourteenth aspect of the present invention, a capacitor is connected to resonate at the frequency of the high-frequency signal, thereby avoiding the influence of leakage magnetic flux and facilitating impedance conversion.
According to a fifteenth aspect of the present invention, the coupler is constituted by a coaxial resonator having a power line or a distribution line as an inner conductor, or is constituted by an impedance converter so that a surface wave or a traveling wave can be transmitted in one direction.
In the sixteenth aspect, the coupler reduces the influence of the reflected wave by transmitting the high-frequency signal only in one direction of the power line or the distribution line.
According to the seventeenth aspect of the present invention, the coupler can be insulated from the ground by supplying power to the base station dispersion device with an AC voltage induced in the winding of the coupler.
In the eighteenth aspect, the distributed base station and the coupling means are insulated from the ground, the high-frequency signal is connected by an optical cable, and is protected from a surge voltage caused by a lightning strike on an electric wire.
In the nineteenth aspect, a stable transmission line with little loss is obtained by terminating the open end of the power line or the distribution line without reflection or terminating the reflection end by a coupler for the relay station or the subscriber terminal. To secure.
In a twentieth aspect of the present invention, a measure for suppressing radio wave leakage from the coupler is prevented from obstructing the Radio Law.
In the twenty-first aspect, the insulating film of the electric wire is made of a material having a high dielectric constant, or a metal ring is provided at intervals on the outer periphery of the insulating film, or the third electric wire is spirally formed on the outer periphery of the insulating film. By wrapping and transmitting the high-frequency signal as a surface wave or a traveling wave, radiation to space can be reduced.
In the twenty-second aspect of the present invention, since the transmission path has a property equivalent to the transmission path of the mobile radio, a margin of about 20 dB is given to the allowable value of the propagation loss.
[0005]
[Action]
In the present invention, the high-frequency signal transmitted by the power line or the distribution line has relatively low power or is transmitted by a surface wave or a traveling wave of the line, so that the radio wave radiated from the line is small and the regulation of the Radio Law is satisfied. can do.
[0006]
【Example】
Hereinafter, embodiments of the present invention will be described with reference to the drawings. In FIG. 1, (11) is a wired modem or base station, (12a) is a distributed base station # 1, (12b) is a distributed base station # 2, (13a), (13b), (13c) are optical cables, and (14) ) Is a subscriber terminal, (15) is a coupler, (16) is a relay station, (17) is a subscriber wireless terminal, (41) (42a) (42b) (42c) (42d) (42e) (42f). (42g) and (42h) are connection terminals, (43a) and (43b) are additional impedances, (50a) (50b) (50c) and (50d) are connection cables, (51a) and (51b) are couplers, and (52a) ( 52b) (52c) (52d) (52e) (52f) are power lines or distribution lines, (53a) (53b) (53c) (53d) (53e) (53f) (53g) (53h) (53i) (53j) (53k) (53 ) Connection terminal (54) outlet, (55) plug, (57a) (57b) (57c) (57d) (57e) (57f) is connected to terminals.
5 to 300 MHz modulated by a high-speed digital signal of several hundred Kbps to several tens Mbps from a digital transceiver incorporated in a base station or a wired modem (11) to base station dispersion apparatuses (12a) and (12b). Transmit and receive high frequency signals.
In the base station dispersing apparatus # 1 (12a) connected via the optical cable (12a), the high-frequency signal transmitted from the base station or the wired modem (11) is branched and amplified, and the connection cable (50a) ( It is connected to the coupler (51a) by 50b). Power lines or distribution lines (52a) (52b) (52c) (52d) are connected to the coupler (51a).
In the coupler (51a), when the high-frequency signal is applied to the winding connected between the connection terminals (53i) and (53j), the connection between the connection terminals (53a) and (53c) and between the connection terminals (53b) and (53d). The coils connected to each generate an electromotive force starting from a black circle, and couple high-frequency signals of the same phase or opposite phases to the power lines or distribution lines (52a) (52b) and (52c) (52d).
The high-frequency signal propagates between the power lines or distribution lines (52c) (52d), and the connection terminals (57a), (57b), and (57c) of the coupler (15) installed near the relay station (16). , (57d), appears in an outlet (54) installed in the home, is connected to the subscriber terminal (14) by a plug (55), and is transmitted to the distributed base station or the transceiver via the ground as a return path. You.
On the other hand, the high-frequency signal is also induced between the connection terminals (57e) and (57f) of the coupler (15), converted into a radio signal by the relay station (16), and transmitted and received by the subscriber radio terminal (17). .
Conversely, the high-frequency signal transmitted from the subscriber terminal (14) or the relay station (16) is transmitted through the plug (55) and the outlet (54) or through the coupler (15) to the power line or the distribution line ( 52c) and (52d), coupled to a distributed base station # 1 (12a) by a coupler (51a), connected to an optical cable (13a), and received by a base station or a receiver of a wired modem (11). .
At this time, AC power applied between the power lines or distribution lines (52c) and (52d) or noise generated by home appliances or power devices is sufficiently attenuated between the connection terminals (53i) and (53j). Therefore, there is an advantage that interference generated by these can be reduced.
On the other hand, in the base station dispersing apparatus # 2 (12b) connected to the cable (13b), the high-frequency signal from the preceding distributed base station # 1 (12a) is branched and coupled by the connecting cables (50c) (50d). (51b) and is connected between the power lines or distribution lines (52e) and (52f).
Conversely, high frequency signals from the power lines or distribution lines (52e) (52f) are coupled to the distributed base station # 2 (12b) by the coupler (51b), coupled to the optical cable (12b), and connected to the base station or the wired modem. It is received by the receiver of (11).
As described above, the transmission line is formed by coupling the high-frequency signal to the two distribution lines with the same phase or by coupling the high-frequency signal to the two distribution lines with the same phase and using the ground as a return path. As a result, it is possible to improve the interference or disturbance due to AC100V or noise, which has been caused by coexistence with the distribution of commercial power, which has been a problem in the conventional technology.
Here, in the couplers (51a), (51b), and (15), the high-frequency signal is the same for a power line or a plurality of electric wires of distribution lines (52a) (52b) (52c) (52d) (52e) (52f). By forming a loop that returns to the ground via a subscriber terminal or an electric appliance in the home, there is an advantage that transmission and reception can be performed in a wide range in the home.
If the coupler (15) for connecting the relay station (16) performs a non-reflection termination and forms a return loop between the ground side electric wire and the non-ground side electric wire or to the ground, the home electric appliances installed indoors can be provided. The influence of the product can be eliminated, and interference or interference from them can be eliminated.
Also, the relay station (16) separates the power line or the distribution lines (52a) (52b) (52c) (52d) (52e) (52f) side from the indoor with respect to the high-frequency signal and converts the high-frequency signal into a radio frequency. It is also possible to perform wireless conversion to the subscriber wireless terminal (17) by using an antenna that is converted and installed indoors.
Further, the relay station (16) separates the power line or the distribution line (52a) (52b) (52c) (52d) (52e) (52f) side from the indoor with respect to the high-frequency signal and directly or It is also possible to convert the signal to another high-frequency signal and reconnect it to the indoor wiring to perform wired relay.
Also, by using a material having a high dielectric constant for the insulating film of the electric wire to be used, providing a metal ring at an interval around the outer periphery of the insulating film, or arranging the third electric wire in parallel or spirally around the outer periphery of the insulating film. The high-frequency signal can be transmitted to the surface or as it travels to reduce external radiation.
In addition, by arranging the third electric wire in parallel or spirally on the outer periphery of the insulating film of the electric wire to be used as a transmission path and transmitting the high-frequency signal, radiation to the outside can be reduced.
Further, by arranging the third electric wire in parallel or spirally on the outer periphery of the insulating film of the wire to form a transmission path and transmitting the high-frequency signal, radiation to the outside can be reduced. Further, when forming a feedback loop between the ground-side electric wire and the non-ground-side electric wire or between the non-ground-side electric wires, between the connection terminals (53a) and (53b) of the coupler (51a) and of the coupler (15). Between the connection terminals (57c) and (57d), an additional impedance (43a) (43b) or a device or a circuit exhibiting similar characteristics that is short-circuited to the high-frequency signal and open to the commercial power supply is connected. By connecting, a loop-shaped transmission path can be formed, and a similar effect can be obtained.
In addition, transmission loss is relatively small in a wide frequency range from 5 MHz to 300 MHz as a carrier frequency of the high-frequency signal, noise due to an inverter or the like is small, and a stationary line caused by branching of a power line or a distribution line into multiple lines. Waves are equivalent to multipath in mobile radio, and it has been found that highly reliable communication is possible by setting a margin of about 20 dB in allowable transmission loss.
[0007]
FIG. 2 is a block diagram showing another embodiment of the present invention. (11) is a wired modem or base station, (12a) is a distributed base station # 1, (12b) is a distributed base station # 2, (13a). ), (13b) and (13c) are optical cables, (14) is a subscriber terminal, (15) is a coupler, (16) is a relay station, (17) is a subscriber wireless terminal, and (41) (42a) ( 42b), (42c), (42d), (42e), (42f), (42g), and (42h) are connection terminals, (50a), (50b), (50c), and (50d) are connection cables, and (51a) and (51b) are couplers. (52a) (52b) (52c) (52d) (52e) (52f) (52g) (52h) are single-phase three-wire low-voltage distribution lines, (53a) (53c) (53e) (53g) (53i) ( 53j) (53k) (53m) are connection terminals, (54) is , (55) is a plug, (57b), (57d), (57e) and (57f) are connection terminals, (58a) and (58b) are pole transformers, (59a) (97b) (59c) (59d) (59e) (59f) is a connection terminal, (60a), (60b), (60c), and (60d) are connection wires, and (61a) and (61b) are high-voltage distribution wires.
Power lines or distribution lines (52c) (52d) and (52e) (52f) are single-phase three-wire low-voltage distribution lines of pole transformers (58a) (58b) connected to high-voltage distribution lines (61a) (61b). Are connected to the ground side terminals (59i) and (59j). Therefore, even if a high-frequency signal is coupled to the high-voltage distribution lines (61a) (61b) and transmitted, the single-phase three-wire low-voltage distribution lines (52b) (52c) (52d) are mounted via pole transformers (58a) (58b). ) And (52f) (52g) (52h), it is difficult to transmit the couplers (51a) (51b) to the ground-side terminals of the single-phase three-wire low-voltage distribution lines of the pole transformers (58a) (58b). (59i) and (59j) to couple the high-frequency signal to the single-phase three-wire low-voltage distribution lines (52a) and (52e).
One of the high-frequency signals coupled to the single-phase three-wire low-voltage distribution lines (52a) (52b) (52e) (52f) is transmitted by surface waves or traveling waves of the electric wires (52a) (52e), and the other is transmitted It is diffused to the ground by the ground lines (52b) and (52f). Most of the high-frequency signals coupled to the electric wires (52a) and (52e) are converted into electric currents and become magnetic currents or high-frequency magnetic fields. Therefore, the rate of radiation to space is extremely small, and most of them are surface waves or traveling waves. Propagate as waves.
In addition, when the frequency of the high-frequency signal is relatively low and the wavelength is long, even if there is a curved portion of the electric wire, the rate of radiation to the space at that point is small, so that most of the high-frequency signal coupled to the electric wire is the unit. The three-phase low-voltage distribution lines (52a) 52e) and the ends of these lines reach with little attenuation.
The high-frequency signal transmitted by the single-phase three-wire low-voltage distribution lines (52a) (52e) is converted into a radio signal by a relay station (16) installed in or near the wattmeter, and is transmitted to the subscriber radio terminal ( 17).
Here, if a repeater station (16) is installed in the wattmeter and non-reflection termination is performed to form a return loop to the ground, even if home appliances and the like installed indoors are grounded to the ground, the entrance to the building can be obtained. There is a merit that it is not affected by home electric appliances because it is separated by providing a non-reflective grounding wire at the point of the watt meter or indoor distribution board installed in the home.
Alternatively, a relatively low impedance is exhibited between the ground side electric wire and the ungrounded side electric wire near the ground point of the low voltage distribution line for the frequency band of the high frequency signal, and relatively low for commercial power frequency. A similar effect can be obtained by forming a loop-shaped transmission line between the two lines or between the two lines and the ground by connecting a filter or a phase-advancing capacitor exhibiting a high impedance.
Further, in the coupler (15) connecting the relay station (16), non-reflection termination is performed and between the ground wire and the non-ground wire or between the ground wire, the non-ground wire and the ground. If a feedback loop is formed, the influence of home electric appliances installed indoors can be eliminated, and interference or interference from these appliances can be eliminated.
Further, the relay station (16) separates the low-voltage distribution lines (52b), (52c), (52d) and (52f) (52g) (52h) sides from the high-frequency signal and the indoor wiring, and converts the high-frequency signal into a radio frequency signal. It is also possible to perform wireless relay to the subscriber wireless terminal (17) using an antenna installed indoors.
Also, the relay station (16) separates the low-voltage distribution lines (52b), (52c), (52d) and (52f) (52g) (52h) sides from the indoor wiring with respect to the high-frequency signal and directly transmits the high-frequency signal. Alternatively, the signal can be converted to another high-frequency signal and re-coupled to the indoor wiring to perform wired relay.
Also, use a material having a high dielectric constant for the insulating film of the electric wire to be used, or provide a metal ring at an interval around the insulating film, or arrange a third electric wire or metal tape around the insulating film in parallel or spirally. By doing so, the high-frequency signal can be transmitted to the surface or as it travels to reduce the radiation to the outside.
In addition, a third wire or metal tape is arranged in parallel or spirally on the outer periphery of the insulating film of the wire to be used, and a transmission path is formed between the wire and the third wire or metal tape to transmit the high-frequency signal. By transmitting, radiation to the outside can be reduced.
In a multi-family house, office building or factory, etc., by installing a distributed base station or a transceiver in or near a power receiving panel that receives high-voltage power lines or high-voltage distribution lines, it can be used in multi-family houses, buildings or factories. The high-frequency signal can be transmitted using an indoor distribution line. The experimental results show that transmission loss is relatively small in a wide frequency range from 5 MHz to 300 MHz, noise due to inverters and the like is small, and the standing wave generated by branching indoor distribution lines into multiple limbs is considered as multipath in mobile radio. It has been found that communication with high reliability is possible by taking a margin of about 20 dB for the allowable transmission loss.
[0008]
3a and 3b are configuration diagrams showing another embodiment of the present invention. In FIG. 3a, (57b), (57d), (57e), and (57f) are connection terminals, (71) is a magnetic body, and (72) is An electric wire is a secondary winding, and (73) is a primary winding.
Power lines or distribution lines are connected to the connection terminals (57b) and (57d), and high-frequency signal outputs transmitted and received from the distributed base stations are connected to the connection terminals (57e) and (57f). When a high-frequency signal output from the distributed base station flows through the winding (73), a high-frequency magnetic current flows through the secondary winding (72) and becomes a surface wave or a traveling wave to form a power line or a distribution line (72). It is transmitted by a surface wave or a traveling wave.
Conversely, surface waves or traveling waves transmitted by power lines or distribution lines (72) are coupled to the primary winding (73) and received by the distributed base station.
Here, if the magnetic body 71 is configured so as not to generate a leakage magnetic flux to the primary winding and the secondary winding, it becomes a wide-band coupling transformer. In addition, since surface waves or traveling waves flowing on the surface of a power line or a distribution line stay for a long time on the surface of the line and are transmitted, and therefore, the degree of radiation as a radio signal is extremely small, the power line or the distribution line is used. Ideal for wide-area transmission.
In FIG. 3B, reference numeral 74 denotes a tertiary winding, to which a
In the above description, the case where a magnetic core is used has been described. However, a similar effect can be obtained by coupling an air-core coil.
In the above description, the case where an integral magnetic core is used has been described. However, by using a ferrite core divided into two parts, the core can be easily attached and detached.
[0009]
4a, 4b, and 4C are configuration diagrams showing another embodiment of the present invention. In FIG. 4A, (57b), (57d), (57e), and (57f) are connection terminals, (72) is an electric wire, and (81a). (81b) is a loop, and (82), (82a) and (82b) are capacitors.
Power lines or distribution lines are connected to the connection terminals (57b) and (57d), and high-frequency signal outputs transmitted and received from the distributed base stations are connected to the connection terminals (57e) and (57f).
A part of the electric wire (72) and the loops (81a) and (81b) form a loop as a whole, and the high-frequency signal output from the distributed base station is transmitted to the loop (81a), the electric wire (72), and the loop (81). 81b), a high-frequency magnetic current flows through the electric wire (72) and becomes a surface wave or traveling wave, which is transmitted by the surface wave or traveling wave of the power line or the distribution line electric wire (72).
Conversely, the surface wave or traveling wave transmitted by the electric power line or the distribution line (72) is coupled to the loop (81a), the electric line (72), and the loop (81b) and received by the distributed base station. .
Here, when the cross-sectional area of the loop is reduced or the outside is covered with a shield, for example, the power radiated to the space is suppressed and the high-frequency signal is a surface wave or a surface wave flowing on the surface of a power line or a distribution line as a broadband coupling transformer. It is converted into a traveling wave, transmitted for a long time on the surface of the electric wire, and is therefore extremely radiated as a radio signal. Therefore, it is most suitable for wide-area transmission using a power line or a distribution line.
In FIG. 4b, capacitors (82a) and (82b) for resonance are connected in series with the loops (81a) and (81b), and are set to resonate with the frequency of the high-frequency signal as a whole or close to resonance.
In FIG. 4c, a resonance capacitor (82) is connected in parallel with the loops (81a) and (81b), and is set to resonate with the frequency of the high-frequency signal as a whole or close to the resonance.
4B and 4C, there is an advantage that the loops (81a) and (81b) can be reduced in size. In FIG. 4B, the voltage of the power line or the distribution line can be reduced by the capacitors (82a) and (82b).
[0010]
5A and 5B are configuration diagrams showing another embodiment of the present invention, in which (57b) and (57d) are connection terminals, (72) is an electric wire, (91) is an external conductor, (92) is a taper, and (57). 93) is a dielectric, (94) is a coaxial cable, (95) is a coupling loop, and (96) is a coil.
When the high-frequency signal output from the distributed base station is applied to the coupling loop (95) through the coaxial cable (94), the outer conductor (91) and the electric wire (72) or the electric wire (72) and the coil (96) and the dielectric A magnetic current or a resonance current is generated in the electric wire (72) or the electric wire (72) and the coil (92) by the resonator constituted by the body (93) and becomes a surface wave or a traveling wave, and is directed toward the connection terminal (57b). Transmitted.
Conversely, the high-frequency signal transmitted from the direction of the connection terminal (57b) is coupled to the coupling loop (95) by the outer conductor (91), the electric wire (72), and the dielectric (93) resonator, and the coaxial cable (94). ) Is received by the distributed base station.
Here, the taper (92) is for smoothing a change in impedance when a surface wave or a traveling wave is generated from the resonator to prevent the resonator from being radiated into a space as a radio signal.
Further, instead of the dielectric (93), the inner conductor (72) or the coil (96) can be replaced with a support for supporting the outer conductor (91) but fixing it. Also, the coupling loop (95) can be directly connected (tapped) to the inner conductor (72) or the coil (96), or can constitute a coupling transformer with the inner conductor (72) or the coil (96).
In addition, the same effect can be obtained by replacing one or both of the taper (92) and the internal dielectric (93) with a supporting insulator or a joint or other means.
Further, a flat plate or a curved reflector may be provided instead of the taper (92).
A similar effect can be obtained by helically winding a third electric wire or metal tape around the outer periphery of the insulating film of the electric wire (72) instead of the taper (92) and connecting one end thereof. .
Further, a material having a high dielectric constant is used for the insulating film of the electric wire (72), or a metal ring is provided at an interval around the insulating film, or a third electric wire or a metal tape is parallelly or spirally formed around the insulating film. , Transmission of a surface wave or a traveling wave can be facilitated.
[0011]
Similar effects can be obtained by applying a coupler using physical means for generating or receiving a surface wave or a traveling wave of an electric wire in addition to the coupler described as an example in the above description.
In addition to the transmission by the surface wave or the traveling wave, the same effect can be obtained by using physical means such as transmission by a magnetic current or transmission by a loop-shaped line and coupling and transmitting the high-frequency signal to one electric wire. Is obtained.
In addition, the frequency of the high-frequency signal is not limited to the 5 to 10 MHz band, but may be any frequency band from several hundred KHz to several tens GHz band. Frequency band with a relatively low frequency noise generated from the electrical equipment that has been used can be selected.
Further, it is also possible to make the power line, distribution line or indoor wiring two or three parallel wires or parallel wires of an arbitrary number of lines and transmit the high-frequency signal as a surface wave or a traveling wave.
The high-frequency signal may be a 1.9 GHz band PHS, a 2.4 GHz band or a 5 GHz band wireless LAN or any frequency band, and the modulation method may be QAM, OFDMA or any method. Using a down converter and an up converter, the signal can be converted to a frequency band of 5 to 10 MHz and transmitted through the transmission line, and can be converted to the original frequency by a relay station and transmitted and received as a radio signal.
Also, instead of connecting the distributed base station to the power line or distribution line or single-phase three-wire low-voltage distribution line, in an apartment house or the like, the high-frequency signal is coupled inside or near the power receiving facility or indoor switchboard, and each subscriber home is connected. A similar effect can be obtained by installing a relay station or a subscriber terminal indoors or a wattmeter.
[0012]
【The invention's effect】
Since the present invention is configured as described above, the last one mile can be used to construct a wide-area subscriber access line at a low cost using power lines or distribution lines, and high-speed data communication can be performed.
[Brief description of the drawings]
FIG. 1 is a configuration diagram showing one embodiment of the present invention.
FIG. 2 is a configuration diagram showing another embodiment of the present invention.
FIG. 3 is a configuration diagram showing another embodiment of the present invention.
FIG. 4 is a configuration diagram showing another embodiment of the present invention.
FIG. 5 is a configuration diagram showing another embodiment of the present invention.
FIG. 6 is a configuration diagram showing a conventional example.
[Explanation of symbols]
11 Base station or wired modem
12a, 12b Distributed base station
13a, 13b, 13c Optical cable
14, 14a, 14b subscriber terminal
15 Combiner
16 relay stations
17 subscriber wireless terminal
41, 42a, 42b, 42c connection terminals
42d, 42e, 42f, 42g, 42h connection terminal
43a, 43b Additional impedance
50a, 50b, 50c, 50d Connection cable
51a, 51b coupler
52a, 52b, 52c, 52d Single-phase three-wire low-voltage distribution line
52e, 52f, 52g, 52h Single-phase three-wire low-voltage distribution line
53a, 53b, 53c, 53d, 53e connection terminal
53f, 53g, 53h, 53i, 53j connection terminal
53k, 53m connection terminal
54 outlets
55 plug
57a, 57b, 57c, 57e, 57f connection terminal
58a, 58b pole transformer
59a, 59b, 59c, 59d, 59e connection terminal
59f, 59g, 59h connection terminal
60a, 60b, 60c, 60d Connection cable
61a, 61b High-voltage distribution line
71 Magnetic material
72 Secondary winding with electric wire
73 Primary winding
74 Tertiary winding
75 Capacitor
81a, 81b loop
82, 82a, 82b Capacitor
91 Outer conductor
92 Taper
93 dielectric
94 Coaxial cable
95 coupling loop
96 coils
Claims (22)
当該高周波信号を当該電力線あるいは配電線に結合するための分散基地局あるいは送受信装置と、当該分散基地局あるいは送受信装置により当該電力線あるいは配電線に結合された当該高周波信号を直接送受信する加入者端末あるいは中継局を介して送受信する加入者端末から構成され、
当該分散基地局あるいは送受信装置が比較的に小さい送信電力であり比較的に狭い地域をサービスするために設置され、当該分散基地局あるいは送受信装置と当該電力線あるいは配電線を結合するための結合手段あるいは当該中継局あるいは加入者端末と当該電力線あるいは配電線を結合するための結合手段あるいはこれらの両方が当該高周波信号を当該電力線あるいは配電線の少なくとも１本あるいは複数の電線に結合して進行波あるいは表面波として伝送しあるいは１本あるいは複数の電線と大地との間あるいは２本以上の電線の間の両端で当該高周波信号に対して短絡あるいは短絡に近い状態にすることでループを構成して結合し伝送するよう機能することを特徴とする電力線搬送装置A wideband high-frequency signal or a plurality of narrow-band high-frequency signals modulated by a high-speed digital signal using a power line or distribution line is transmitted over a wide area, and the high-frequency signal is converted directly or into another high-frequency signal, or converted to a radio signal. In the wide area subscriber access line for converting and communicating with the subscriber terminal,
A distributed base station or transmission / reception device for coupling the high-frequency signal to the power line or distribution line, and a subscriber terminal for directly transmitting / receiving the high-frequency signal coupled to the power line or distribution line by the distribution base station or the transmission / reception device or It consists of subscriber terminals that transmit and receive via relay stations,
The distributed base station or the transmitting / receiving apparatus is installed to service a relatively small area with relatively small transmission power, and coupling means for coupling the distributed base station or the transmitting / receiving apparatus with the power line or distribution line or Coupling means for coupling the relay station or subscriber terminal to the power line or distribution line, or both, couples the high-frequency signal to at least one or more of the power line or distribution line to form a traveling wave or surface wave. A loop is formed by transmitting as a wave or making a short-circuit or near-short-circuit with the high-frequency signal at both ends between one or a plurality of electric wires and the ground or between two or more electric wires. Power line carrier device characterized by functioning to transmit
当該高周波信号を当該電力線あるいは配電線に結合するための分散基地局あるいは送受信装置と、当該分散基地局あるいは送受信装置により当該電力線あるいは配電線に結合された当該高周波信号を直接送受信する加入者端末あるいは中継局を介して送受信する加入者端末から構成され、
当該分散基地局あるいは送受信装置が比較的に小さい送信電力であり比較的に狭い地域をサービスするために設置され、当該分散基地局あるいは送受信装置と当該電力線あるいは配電線を結合するための結合手段あるいは当該中継局あるいは加入者端末と当該電力線あるいは配電線を結合するための結合手段あるいはこれらの両方が当該高周波信号を当該電力線あるいは配電線の単相３線式低圧配電線路の少なくとも接地側電線に結合して伝送するよう機能することを特徴とする電力線搬送装置A wideband high-frequency signal or a plurality of narrow-band high-frequency signals modulated by a high-speed digital signal using a power line or distribution line is transmitted over a wide area, and the high-frequency signal is converted directly or into another high-frequency signal, or converted to a radio signal. In the wide area subscriber access line for converting and communicating with the subscriber terminal,
A distributed base station or transmission / reception device for coupling the high-frequency signal to the power line or distribution line, and a subscriber terminal for directly transmitting / receiving the high-frequency signal coupled to the power line or distribution line by the distribution base station or the transmission / reception device or It consists of subscriber terminals that transmit and receive via relay stations,
The distributed base station or the transmitting / receiving apparatus is installed to service a relatively small area with relatively small transmission power, and coupling means for coupling the distributed base station or the transmitting / receiving apparatus with the power line or distribution line or Coupling means for coupling the relay station or subscriber terminal to the power line or distribution line, or both, couples the high-frequency signal to at least the ground-side wire of the single-phase three-wire low-voltage distribution line of the power line or distribution line. Power line carrier characterized by functioning as transmission
当該電力線あるいは配電線が単相３線式低電圧配電線であり、当該低電圧配電線の接地側線路あるいは接地側線路と大地との間に結合された分散基地局および当該低電圧配電線を引き込んだ家屋への引込口あるいは屋内に設けられた中継局あるいは加入者端末あるいは電気機器あるいは家電品を経由して伝送線路を構成し、
当該接地側線路の接地点の近傍に当該分散基地局あるいは送受信装置を設けて高周波信号を当該伝送線路に結合し、当該伝送線路の任意の部分に設けられた加入者端末あるいは中継局を当該伝送線路に結合して当該高周波信号を受信しあるいは送信しあるいは送受信することを特徴とする電力線搬送装置A wideband high-frequency signal or a plurality of narrow-band high-frequency signals modulated by a high-speed digital signal using a power line or distribution line is transmitted over a wide area, and the high-frequency signal is converted directly or into another high-frequency signal, or converted to a radio signal. In the wide area subscriber access line for converting and communicating with the subscriber terminal,
The power line or the distribution line is a single-phase three-wire low-voltage distribution line, and the distributed base station coupled between the ground-side line or the ground-side line of the low-voltage distribution line and the ground, and the low-voltage distribution line A transmission line is formed via an entrance to a house that has been retracted or a relay station or a subscriber terminal or an electric device or a home appliance provided indoors,
The distributed base station or the transmitting / receiving device is provided near the ground point of the ground side line to couple a high-frequency signal to the transmission line, and a subscriber terminal or a relay station provided at an arbitrary part of the transmission line is transmitted to the transmission line. A power line carrier device coupled to a line for receiving, transmitting, or transmitting and receiving the high-frequency signal.
当該電力線あるいは配電線が単相３線式低電圧配電線であり、当該低電圧配電線の接地側線路と非接地側線路および当該低電圧配電線を引き込んだ家屋への引込口あるいは屋内に設けられた中継局あるいは加入者端末あるいは電気機器あるいは家電品を経由して伝送線路を構成し、
当該低電圧線路の接地側線路の接地点の近傍の接地側線路と非接地側線路の間に当該高周波信号に対して比較的に低いインピーダンスを呈し商用電力の周波数に対して比較的に高いインピーダンスを呈するフイルタをあるいは進相コンデンサを接続し当該接続点の近傍に当該分散基地局あるいは送受信装置を設けて高周波信号を当該伝送線路に結合し、当該伝送線路の任意の部分に設けられた加入者端末あるいは中継局あるいは電気機器あるいは家電品を当該伝送線路に結合して当該高周波信号を受信しあるいは送信しあるいは送受信することを特徴とする電力線搬送装置A wideband high-frequency signal or a plurality of narrow-band high-frequency signals modulated by a high-speed digital signal using a power line or distribution line is transmitted over a wide area, and the high-frequency signal is converted directly or into another high-frequency signal, or converted to a radio signal. In the wide area subscriber access line for converting and communicating with the subscriber terminal,
The power line or the distribution line is a single-phase three-wire low-voltage distribution line, and the low-voltage distribution line is provided at the ground side line and the ungrounded-side line and at the entrance to a house into which the low-voltage distribution line is drawn in or indoors. A transmission line via a relay station or a subscriber terminal or an electrical device or a home appliance,
A relatively low impedance for the high-frequency signal and a relatively high impedance for the frequency of the commercial power between the ground side line and the non-ground side line near the ground point of the ground side line of the low voltage line. A filter or a phase-advancing capacitor is connected, and the distributed base station or the transmitting / receiving device is provided near the connection point to couple a high-frequency signal to the transmission line, and a subscriber provided at an arbitrary portion of the transmission line is provided. A power line carrier device for receiving, transmitting, or transmitting and receiving the high-frequency signal by coupling a terminal, a relay station, an electric device, or a home appliance to the transmission line.
高圧電力線あるいは高圧配電線の受電盤あるいは屋内の配電線の分岐点あるいはこれらの近辺において、当該屋内配電線の接地側線路あるいは非接地側線路あるいはこれらの両者との間あるいは接地側線路と大地との間に結合された分散基地局あるいは送受信機と各個別の住宅の引き込み口あるいは屋内に設けられた中継局あるいは加入者端末あるいは電気機器あるいは家電品の間で伝送線路を構成し、
当該分散基地局あるいは送受信機を設けて当該高周波信号を当該伝送線路に結合し、当該伝送線路の任意の部分に設けられた加入者端末あるいは中継局を当該伝送線路に結合して当該高周波信号を受信しあるいは送信しあるいは送受信することを特徴とする電力線搬送装置A wideband high-frequency signal or a plurality of narrowband high-frequency signals modulated by a high-speed digital signal is transmitted over a wide area using a distribution line inside an apartment house, office building or factory, and the high-frequency signal is transmitted directly or to another high-frequency signal. In a large-capacity subscriber access line for performing communication with a subscriber terminal by converting into a signal or a radio signal,
At or near the receiving point of the high-voltage power line or high-voltage distribution line, or the branch point of the indoor distribution line, between the ground-side line or the ungrounded-side line of the indoor distribution line, or both, or between the ground-side line and the ground. A transmission line between a distributed base station or a transceiver coupled between the terminal and an entrance of each individual house or a relay station or a subscriber terminal or an electric device or a household appliance provided indoors,
The distributed base station or the transceiver is provided to couple the high-frequency signal to the transmission line, and a subscriber terminal or a relay station provided at an arbitrary portion of the transmission line is coupled to the transmission line to transmit the high-frequency signal. Power line carrier device for receiving, transmitting, or transmitting / receiving
高圧電力線あるいは高圧配電線の受電盤あるいは屋内の配電線の分岐点あるいはこれらの近辺において、接地側線路と非接地側線路の間あるいは非接地側線路間に当該高周波信号に対して比較的に低いインピーダンスを呈し商用電力の周波数に対して比較的に高いインピーダンスを呈するフイルタをあるいは進相コンデンサを接続し、当該接続地点の近傍に分散基地局あるいは送受信装置を設けて高周波信号を結合し、各個別の住宅に設けられた加入者端末あるいは中継局あるいは家電品において当該接地側線路と非接地側線路の間あるいは非接地側線路間に結合して当該高周波信号を受信しあるいは送信しあるいは送受信することを特徴とする電力線搬送装置A wideband high-frequency signal or a plurality of narrowband high-frequency signals modulated by a high-speed digital signal is transmitted over a wide area using a distribution line inside an apartment house, office building or factory, and the high-frequency signal is transmitted directly or to another high-frequency signal. In a large-capacity subscriber access line for performing communication with a subscriber terminal by converting into a signal or a radio signal,
At a high voltage power line or a high voltage distribution line receiving panel, or at a branch point of an indoor distribution line, or near these, between the ground side line and the non-ground side line or between the non-ground side lines, the frequency of the high frequency signal is relatively low. Connect a filter or a phase-advancing capacitor that presents an impedance and presents a relatively high impedance to the frequency of commercial power, and install a distributed base station or a transceiver near the connection point to combine high-frequency signals and Receiving or transmitting or transmitting or receiving the high-frequency signal by coupling between the grounding line and the non-grounding line or between the non-grounding line in a subscriber terminal, a relay station, or a household electrical appliance provided in a house in the country Power line carrier characterized by the following
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| WO2016171914A1 (en) * | 2015-04-24 | 2016-10-27 | At&T Intellectual Property I, L.P. | Passive electrical coupling for surface waves on power line and methods for use therewith |
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| US9525210B2 (en) | 2014-10-21 | 2016-12-20 | At&T Intellectual Property I, L.P. | Guided-wave transmission device with non-fundamental mode propagation and methods for use therewith |
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