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題 名 | 高速電力線接取網路之研究=Study of High-Speed Power Line Access Networks |
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作 者 | 江昭佑; | 書刊名 | 電腦與通訊 |
卷 期 | 135 2010.10[民99.10] |
頁 次 | 頁5-10 |
專 輯 | 多重服務網路接取技術專題 |
分類號 | 448.115 |
關鍵詞 | 電力線通訊; 寬頻電力線上網; 電容式耦合器; 電感式耦合器; Power line communication; Broadband power line; Capacitive coupling unit; Inductive coupling unit; PLC; BPL; CCU; ICU; |
語 文 | 中文(Chinese) |
中文摘要 | 電力線通訊自2005年陸續有業者推出高達200Mbps的寬頻晶片之後,實際封包傳輸速率約40M~100Mbps,已能提供影音等多媒體資料傳輸,搭上數位家庭寬頻上網風潮的起飛,更加刺激電力線通訊的發展。然而,電力線原非設計搭載通訊網路,其傳輸品質易受家庭電器干擾或線路老舊所影響。因此,一般將電力線通訊頭端訊號耦合至低壓電力線時,會使用耦合器(Coupler)以讓電力線頭端訊號至用戶端時其值為最大及最佳化。傳統上使用二線或三線式耦合器將頭端訊號耦合至變壓器二次側,但經實證後常因用戶使用習慣、家電干擾或裝潢等因素,導致用戶端插座訊號微弱,造成使用上之不便。本篇將提出幾種高效率之耦合方式,有效強化用戶端插座之訊號強度,並提出目前電力線接取網路所面臨亟待處理的技術議題。 |
英文摘要 | Since 2005, power line communication chip vendor had launched product to provide broadband chip about 200 Mbps transmission rate. Although the actual transmission rate is about 40M~100 Mbps, it has enough bandwidth to provide video and other multimedia data transmission. However, the power line is non-proprietary communication networks, the transmission rate would be interfered with electrical appliances. Therefore, using coupler is a solution when the headend signal coupled to the low-voltage power line to make sure the communication quality is the best. According to the experience of field trial, the power line communication quality would decrease due to user habits, household appliances interfere with and other factors, which led to the client socket signal is weak. This article will present some high-efficiency coupling methods, which could effectively strengthen the signal of the client socket and provide some technical bottlenecks of power line access networks currently. |
本系統中英文摘要資訊取自各篇刊載內容。