IC697MCS704聯(lián)系人:李先生
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IC697MCS704
航標(biāo)遙測遙控終端上電后,由終端的數(shù)據(jù)采集電路開始工作,采集航標(biāo)燈的各個工作狀態(tài),包括電源的動態(tài)電壓、靜態(tài)電壓、充電電壓、動態(tài)電流、充電電流、運行燈質(zhì)等等。
為降低RTU系統(tǒng)的功耗,采集電路是以一定的時間間隔進(jìn)行工作(可設(shè)置),每次每個參數(shù)測量至少 10次,然后取平均值作為本時刻的數(shù)據(jù),并將這些數(shù)據(jù)和存儲的中心設(shè)置參數(shù)(閥值)進(jìn)行比較,判斷航標(biāo)燈是否出現(xiàn)異常情況,如果異常,則由ARM主系統(tǒng)申請進(jìn)行報警處理。在ARM主系統(tǒng)得到航標(biāo)運行參數(shù)和航標(biāo)位置參數(shù)后,按照規(guī)定的數(shù)據(jù)協(xié)議和GSM協(xié)議、GPRS協(xié)議,進(jìn)行消息編碼,由GSM/GPRS模塊實現(xiàn)數(shù)據(jù)發(fā)送。系統(tǒng)采用GPRS實時傳輸(主)和SMS短消息(輔)兩種通信方式,主輔通信方式通過科學(xué)組合、自動適應(yīng)、自動切換,采用抗干擾和過濾設(shè)計。傳送數(shù)據(jù)時采用無應(yīng)答時重發(fā),GPRS不成功轉(zhuǎn)為短消息傳送,短消息不成功重啟通信模塊重新發(fā)送,在限時內(nèi)不成功自動保存,等待網(wǎng)絡(luò)恢復(fù)時補(bǔ)發(fā)。
對于處理較為復(fù)雜和實時性要求高的閃光燈燈質(zhì)測量、加速度撞擊測量時,先由從 CPU(LPC1114)先進(jìn)行預(yù)處理后再交由主CPU(LPC1769),這樣可以保證當(dāng)高性能的主CPU處于低頻省電休眠時也不會降低航標(biāo)終端監(jiān)測的實時性和報警的及時性,保證在終端處于休眠時也能在線監(jiān)測航標(biāo)燈的狀態(tài)、工作參數(shù)、撞擊情況、充電和電池情況,出現(xiàn)異常和超限時馬上觸發(fā)報警處理。當(dāng) GPS模塊沒有關(guān)機(jī)時可對浮標(biāo)的位置持續(xù)測量及報警判斷;當(dāng)GSM模塊沒有關(guān)機(jī)時,監(jiān)控中心可以隨時查詢其實時狀態(tài)。
IC697MCS704GOULD MODICON M485-008 PROCESSOR (REPAIRED)
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PCS. 1 LOT MUST SEE PICTURES AND DESC. FOR INFORMATION
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IC697MCS704