IC697BEM741
IC697BEM741
醫(yī)藥庫(kù)房溫濕度控制系統(tǒng)設(shè)計(jì)結(jié)構(gòu)醫(yī)藥庫(kù)房溫濕度控制系統(tǒng)總體結(jié)構(gòu)應(yīng)用戶要求對(duì)若干個(gè)地理位置分散的醫(yī)藥庫(kù)房的溫濕度進(jìn)行實(shí)時(shí)的監(jiān)測(cè)與控制,為了適應(yīng)對(duì)多個(gè)測(cè)控點(diǎn)的監(jiān)控與管理,經(jīng)分析采用了分布式系統(tǒng)的控制方式,即在每個(gè)測(cè)控點(diǎn)配置能獨(dú)立工作的從機(jī),多個(gè)從機(jī)由1個(gè)上位機(jī)進(jìn)行監(jiān)控管理,上下采用主從式監(jiān)控管理形式。
系統(tǒng)的各個(gè)部分功能和關(guān)系如下:
1)主機(jī)為管理機(jī),完成參數(shù)設(shè)置、數(shù)據(jù)存儲(chǔ)、處理及管理功能。
2)從機(jī)為控制機(jī),采用單片機(jī)2051,直接實(shí)現(xiàn)各個(gè)模塊的控制功能,并能在主機(jī)關(guān)機(jī)的條件下實(shí)現(xiàn)所有的控制功能。
3)通訊轉(zhuǎn)換機(jī)實(shí)現(xiàn)RS232信號(hào)和RS485信號(hào)的轉(zhuǎn)換,主機(jī)通過其向從機(jī)發(fā)送控制參數(shù),從機(jī)將現(xiàn)場(chǎng)采集數(shù)據(jù)通過其傳給主機(jī)。
4)數(shù)據(jù)采集實(shí)現(xiàn)對(duì)傳感器及運(yùn)行設(shè)備的檢測(cè)。
5)控制器及其設(shè)備根據(jù)系統(tǒng)輸出的信號(hào)對(duì)現(xiàn)場(chǎng)設(shè)備進(jìn)行控制。
6)輸入輸出部分包括輸入模塊和輸出模塊,輸入模塊將采集的信號(hào)轉(zhuǎn)換后輸入到從機(jī),輸出模塊將系統(tǒng)的控制信號(hào)輸出到控制器及其設(shè)備。
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