在隧道、井下、野外露天或環境惡劣的監測現場，使用光纖或視頻電纜來實現通信是相當危險和不可靠的。針對監測環境中可能存在易燃易爆條件，濕度大，灰塵多，監測場所分散，距離較遠等特殊問題，分析惡劣環境中通信方式的選擇，提出建立惡劣環境雙絞線寬帶通信ADSL 技術的思想，介紹惡劣環境ADSL 通信技術的實現與設計。
關鍵詞：監測 雙絞線 通信 ADSL 惡劣環境
Abstract It is of extreme hazardousness and unreliability, using fiber or video cable, to carry out communication under tough environment such as tunnel, well, open-air etc. So through surveying problems in that situation like inflammability, humidity, dust, scattering inspection place and long distance, this paper analyzes communication mode selection in harsh
environment, puts forward broadband communication ADSL technology using twisted-pair cable, introduces design and implementation of this communication technology.
Keywords Surveillance and Measure, Twisted-pair, Communication, ADSL, Badly Environment