TU506-FBP
TU506-FBP
TU506-FBP
TU506-FBP
某石油工業(yè)集團(tuán)公司主營(yíng)業(yè)務(wù)為石油和天然氣勘探、開(kāi)發(fā)、煉制、化工及銷售工作，目前是中國(guó)第四大石油公司。由于公司作業(yè)面的寬廣，以及石油工業(yè)本身的特點(diǎn)，該公司需要把多個(gè)分散的設(shè)備產(chǎn)生的信息采集，并傳輸?shù)娇刂浦行?，進(jìn)行統(tǒng)一的處理。因此，便存在了遠(yuǎn)距離采集、傳輸數(shù)據(jù)的技術(shù)難題。
問(wèn)題分析：
該公司的現(xiàn)狀是：在煉油廠現(xiàn)場(chǎng)擁有大量的傳感器（比如測(cè)算油壓的壓力傳感器、液位傳感器、可燃?xì)怏w檢測(cè)傳感器等），這些設(shè)備源源不斷地產(chǎn)生大量的監(jiān)測(cè)數(shù)據(jù)，而這些數(shù)據(jù)的處理中心卻是位于幾十公里以外。一方面，需要把現(xiàn)場(chǎng)的儀表、儀器產(chǎn)生的監(jiān)測(cè)數(shù)據(jù)采集傳輸?shù)綆资镆酝獾南到y(tǒng)處理中心；另一方面，需要把系統(tǒng)的指令傳輸?shù)綆资镆酝獾默F(xiàn)場(chǎng)設(shè)備。這必將導(dǎo)致一系列的技術(shù)難題：如何確保長(zhǎng)距離傳輸?shù)男畔?zhǔn)確、及時(shí)地送達(dá)；如何應(yīng)對(duì)長(zhǎng)距離傳輸中的干擾問(wèn)題。
解決方式：
面對(duì)這種復(fù)雜的情形，考慮到該煉油廠已經(jīng)裝有光纖網(wǎng)絡(luò)，決定采用阿爾泰公司的DAM-3000系列來(lái)解決這個(gè)問(wèn)題。DAM-3000系列是485總線通訊采集模塊，使用DAM-3000系列模塊與煉油廠現(xiàn)場(chǎng)的各種傳感器連接，通過(guò)A/D的數(shù)據(jù)采集和轉(zhuǎn)換，變?yōu)?85信號(hào)，最后通過(guò)光纖轉(zhuǎn)換器再將其轉(zhuǎn)化為光纖信號(hào)進(jìn)行傳遞。上位機(jī)可以通過(guò)組態(tài)軟件來(lái)實(shí)現(xiàn)監(jiān)控的目的，這樣就可以在監(jiān)控室收集到各個(gè)分散現(xiàn)場(chǎng)過(guò)來(lái)的數(shù)據(jù)，進(jìn)行數(shù)據(jù)的處理和監(jiān)控。
應(yīng)用的產(chǎn)品：
DAM-3058F：8路模擬量輸入模塊，輸入電壓或電流信號(hào)，可采集石油液位的高度，可燃?xì)怏w的的濃度。
DAM-3039F：8路熱電偶模擬量輸入模塊，輸入熱電偶信號(hào)，可監(jiān)控溫度信號(hào)。
DAM-3503：三相全參數(shù)交流電量采集模塊，可采集電壓、電流、電度、功率信號(hào)。
DAM-3018D：8路繼電器輸出模塊，觸點(diǎn)容量為AC 250V、1A，DC 30V、2A，可以控制油泵的停啟。
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