屋内電力線伝送路の伝送特性改善と重信伝送の検討  [in Japanese] Improvement of Transmission Characteristic and Studying of Phantom Transmission at Power Line Channel in Household  [in Japanese]

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Author(s)

    • 稲田 圭吾 INADA Keigo
    • 愛媛大学工学部電気電子工学科 Department of Electrical and Electric Engineering, Faculty of Engineering, Ehime University
    • 都築 伸二 TSUZUKI Shinji
    • 愛媛大学工学部電気電子工学科 Department of Electrical and Electric Engineering, Faculty of Engineering, Ehime University
    • 山田 芳郎 YAMADA Yoshio
    • 愛媛大学工学部電気電子工学科 Department of Electrical and Electric Engineering, Faculty of Engineering, Ehime University

Abstract

家庭内のネットワークを実現する手段として電力線通信が期待されているが,配線方法によっては伝搬損失が増加することや,伝送路の平衡度劣化による不要輻射が問題となっている.これらの原因としては,伝送路の分岐,スイッチ回路の挿入による経路長の違い,接地極付きコンセントでの接地線配置が考えられる.本稿では,これらの改善方法を検討し,特に伝達特性が改善できたことを示している.それよって3芯VVFケーブルの伝送路では重信伝送を行うことが可能となり,通信容量を2倍に出来ることを示している.一方平衡度については,必ずしも明確な差ではないが,おおむね改善できたことを示している.また,重信伝送用バランの検討を行い,一般に用いられているフロートバランよりも強制バランの方が良好なmode間の分離特性を持つことを示している.

Although power-line communication is expected as a promising method to realize an in-home network, one of its difficulties is the wiring scheme, which sometimes affects the signal-attenuation property and sometimes introduces an unnecessary radiation due to the electrical unbalance. These problems may occur, when power-line channels are branched, the length of two signaling-wires is different due to switch circuits, and the conventional layout of ground-wire for outlets with ground connecter is used. In this paper, new wiring schemes are proposed. It is shown that the schemes are effective in improving the transmission characteristic of the power-line channels. Moreover, the scheme allows us to make the phantom transmission available when 3-wires VVF cables are used. The phantom transmission makes the power-line channel-capacity double. Although the electrical unbalance was also improved by the proposed wiring-schemes, their degree was so small. Finally, the suitable balun for the phantom transmission is studied, and the force-balun has achieved a better isolation characteristic when compared to a float-balun.

Journal

  • Technical report of IEICE. SST

    Technical report of IEICE. SST 102(392), 43-48, 2002-10-22

    The Institute of Electronics, Information and Communication Engineers

Cited by:  5

Codes

  • NII Article ID (NAID)
    110003288537
  • NII NACSIS-CAT ID (NCID)
    AN10345990
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    09135685
  • NDL Article ID
    6363721
  • NDL Source Classification
    ZN33(科学技術--電気工学・電気機械工業--電子工学・電気通信)
  • NDL Call No.
    Z16-940
  • Data Source
    CJPref  NDL  NII-ELS 
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