5、體系運營本錢低：
      選用GPRS公網(wǎng)通訊，全國規(guī)模內(nèi)均按一致費率計費，省去貴重的周游費用, GPRS網(wǎng)絡(luò)可按數(shù)據(jù)實踐通訊流量計費，(1分-3分/1K字節(jié))，也能夠按包月不限流量收費，然后完結(jié)了體系的低本錢通訊。
6、體系的傳輸容量，擴容功用好：
        監(jiān)控基地要和每一個PLC操控現(xiàn)場完結(jié)實時銜接。體系請求能滿意突發(fā)性數(shù)據(jù)傳輸?shù)男枰�，而GPRS技能能極好地滿意傳輸突發(fā)性數(shù)據(jù)的需要；因為體系選用成熟的TCP/IP通訊架構(gòu)，具有杰出的拓展功用，一個監(jiān)測基地可輕松支撐上千個現(xiàn)場PLC數(shù)據(jù)通訊。

7、GPRS傳輸功耗小，合適戶外供電環(huán)境：
       盡管與遠在千里的數(shù)據(jù)基地進行雙向通訊，GPRS數(shù)傳設(shè)備在作業(yè)時卻只需與鄰近的移動基站通訊即可,其全體功耗與一臺一般GSM手機適當, 平均功耗僅為200毫瓦左右，比傳統(tǒng)數(shù)傳電臺小得多。因此GPRS傳輸方法十分合適在戶外運用太陽能供電或蓄電池供電的場合下運用。


體系構(gòu)成


1、現(xiàn)場操控/搜集點：
      現(xiàn)場監(jiān)控點由PLC完結(jié)主動操控，并搜集有關(guān)信息，經(jīng)過RS232或RS485接口與GPRS DTU終端相連，PLC搜集到的設(shè)備信息經(jīng)過GPRS DTU終端對數(shù)據(jù)進行處理、協(xié)議封裝后發(fā)送到GPRS無線網(wǎng)絡(luò)。

2、監(jiān)控基地：
a）公網(wǎng)接入計劃
       服務器選用公網(wǎng)方法接入Internet，如ADSL撥號/電信專線寬帶上網(wǎng)等，請求公網(wǎng)固定IP地址；能夠完結(jié)中小容量的體系運用。

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