通常采用數(shù)據(jù)采集器和上位機(jī)兩級(jí)結(jié)構(gòu),數(shù)據(jù)采集器安裝在現(xiàn)場(chǎng),負(fù)責(zé)實(shí)時(shí)監(jiān)測(cè)和采集數(shù)據(jù),上位機(jī)則負(fù)責(zé)數(shù)據(jù)的接收、處理和存儲(chǔ)。數(shù)據(jù)采集器與上位機(jī)之間通過RS485或CAN總線等方式進(jìn)行通信?!?/div>
2、數(shù)據(jù)傳輸流程
在線煙氣監(jiān)測(cè)分析儀的數(shù)據(jù)傳輸流程一般包括以下幾個(gè)步驟:
(1)數(shù)據(jù)采集:分析儀的傳感器會(huì)實(shí)時(shí)采集煙氣排放數(shù)據(jù),并將數(shù)據(jù)傳輸?shù)綌?shù)據(jù)采集器中;
(2)數(shù)據(jù)處理:數(shù)據(jù)采集器會(huì)對(duì)采集到的數(shù)據(jù)進(jìn)行初步處理,如數(shù)據(jù)過濾、校準(zhǔn)、補(bǔ)償?shù)龋蕴岣邤?shù)據(jù)的準(zhǔn)確性和可靠性;
(3)數(shù)據(jù)打包:數(shù)據(jù)處理后,數(shù)據(jù)采集器會(huì)將數(shù)據(jù)按照一定的協(xié)議進(jìn)行打包,以方便傳輸;
(4)數(shù)據(jù)傳輸:打包后的數(shù)據(jù)通過RS485或CAN總線等方式傳輸?shù)缴衔粰C(jī)中;
(5)數(shù)據(jù)解包:上位機(jī)接收到數(shù)據(jù)后,需要對(duì)數(shù)據(jù)進(jìn)行解包和解析,以得到原始數(shù)據(jù);
(6)數(shù)據(jù)存儲(chǔ):解包后的原始數(shù)據(jù)被存儲(chǔ)到數(shù)據(jù)庫中,以供后續(xù)分析和應(yīng)用。
二、數(shù)據(jù)處理方式
在線煙氣監(jiān)測(cè)分析儀的數(shù)據(jù)處理主要包括數(shù)據(jù)濾波、校準(zhǔn)、補(bǔ)償?shù)?。其中,?shù)據(jù)濾波可以去除數(shù)據(jù)的噪聲和干擾,保證數(shù)據(jù)的準(zhǔn)確性;數(shù)據(jù)校準(zhǔn)可以通過對(duì)比標(biāo)準(zhǔn)氣體或其它參考值,對(duì)數(shù)據(jù)進(jìn)行修正和校準(zhǔn),提高數(shù)據(jù)的可靠性;數(shù)據(jù)補(bǔ)償可以彌補(bǔ)傳感器和測(cè)量系統(tǒng)的誤差,進(jìn)一步提高數(shù)據(jù)的準(zhǔn)確性和可靠性。