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公司基本資料信息
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【1746-NT4】dcs的定義
dcs是分布式控制系統(tǒng)(distributed control system)的簡稱,亦稱為集散控制系統(tǒng),它是由回路儀表控制系統(tǒng)發(fā)展而來,是在計算機、通訊、控制和crt技術(shù)迅速發(fā)展的基礎(chǔ)上產(chǎn)生的。
3.2 dcs的發(fā)展歷程
上世紀60年代以后,隨著生產(chǎn)工程的大型化和復(fù)雜化,誕生了計算機集中監(jiān)視和控制的集中控制系統(tǒng)。集中控制方便了監(jiān)視、操作和管理,同樣也使危 險性高度集中,系統(tǒng)一旦故障,對裝置造成的影響和危險性都是非常大的。隨著微處理機的誕生,為新型控制系統(tǒng)的開放創(chuàng)造了無比優(yōu)越的條件。1975年,隨著 計算機、通訊、控制和crt 4c技術(shù)的不斷發(fā)展和完善,美國honeywell首次向全球推出了分散控制系統(tǒng)tdc-2000,從第一套dcs誕生至今,dcs系統(tǒng)已經(jīng)經(jīng)歷了3個發(fā) 展階段。
1975至1980年為初創(chuàng)階段。由于軟硬件技術(shù)的限制,此時的dcs系統(tǒng)性能還不十分完善,硬件結(jié)構(gòu)還不十分成熟。
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