140CRP31200
140CRP31200
140CRP31200
《聯(lián)系人;歐先生》
《座機(jī):0592-5709825》
《傳真:0592-5917519》
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紫金橋?qū)崟r(shí)數(shù)據(jù)庫(kù)實(shí)現(xiàn)了工廠數(shù)據(jù)的有效存儲(chǔ)和管理。喀土穆煉油廠通過(guò)六臺(tái)數(shù)據(jù)采集計(jì)算機(jī)分別與6個(gè)裝置的DCS進(jìn)行數(shù)據(jù)通訊,DCS將數(shù)據(jù)送入實(shí)時(shí)數(shù)據(jù)庫(kù) 中進(jìn)行數(shù)據(jù)存儲(chǔ)和管理。中心服務(wù)器均配備雙網(wǎng)卡,一塊用于與控制網(wǎng)相連,獲取實(shí)時(shí)生產(chǎn)數(shù)據(jù);另一塊用于管理網(wǎng),可以把數(shù)據(jù)發(fā)布到管理者計(jì)算機(jī)上。另外,實(shí) 時(shí)數(shù)據(jù)庫(kù)服務(wù)器采用了雙機(jī)熱備方式,確保系統(tǒng)穩(wěn)定可靠的運(yùn)行。
前端數(shù)據(jù)采集機(jī)與控制系統(tǒng)的DCS通訊,把生產(chǎn)數(shù)據(jù)采集過(guò)來(lái),并且對(duì)數(shù)據(jù)進(jìn)行初步的處理,如量程變換、歷史存貯、流程顯示等。同時(shí),數(shù)采機(jī)通過(guò)網(wǎng)絡(luò)把數(shù)據(jù)傳送到中心服務(wù)器。
中心數(shù)據(jù)服務(wù)器是整個(gè)系統(tǒng)的核心,可以對(duì)數(shù)據(jù)進(jìn)行各種處理。主要有以下功能:
數(shù)據(jù)斷點(diǎn)續(xù)傳功能:由于蘇丹煉油廠內(nèi)部局域網(wǎng)設(shè)備比較陳舊,其網(wǎng)絡(luò)出現(xiàn)故障頻率較高,因此在服務(wù)器端具有斷點(diǎn)數(shù)據(jù)續(xù)傳功能就非常重要了。服務(wù)器可以自動(dòng)檢測(cè)網(wǎng)絡(luò)故障,并在網(wǎng)絡(luò)恢復(fù)正常后自動(dòng)和數(shù)采機(jī)進(jìn)行歷史數(shù)據(jù)傳送,保持?jǐn)?shù)據(jù)的完整性。
數(shù)據(jù)壓縮備份功能:本系統(tǒng)中實(shí)時(shí)數(shù)據(jù)庫(kù)總點(diǎn)數(shù)超過(guò)1萬(wàn)點(diǎn),系統(tǒng)中心服務(wù)器1秒鐘數(shù)據(jù)刷新一次,在這樣的狀況下,如果數(shù)據(jù)庫(kù)沒(méi)有高效的壓縮算法那么將是不可 忍受的。紫金橋?qū)崟r(shí)數(shù)據(jù)庫(kù)對(duì)生產(chǎn)數(shù)據(jù)采用了多種壓縮算法,有效的解決了大數(shù)據(jù)量的問(wèn)題。同時(shí)我們也保證了查詢的速度,保證系統(tǒng)不因?yàn)殚L(zhǎng)時(shí)間的運(yùn)行而減慢查 詢速度。在實(shí)際的應(yīng)用中,每天的數(shù)據(jù)存貯量大約為15M左右,查詢?nèi)魏螘r(shí)刻的歷史數(shù)據(jù)不超過(guò)1秒。
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