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NFC

 

   1、功能特征

● NFC_T采用433MHz通信平臺,具有成本低、通信可靠、系統穩定等優點;

● NFC_T參數設置簡單;

● 系統可采集實時數據和歷史數據,便于供水公司了解水表的詳細信息;

● 抄表速度快,所需抄表人員少,節約人力物力;

● 系統各部件高度集成,系統維護簡單,故障少,定位方便;

● 系統各采集器獨立工作,互不干擾,不會出現整體癱瘓的現象;

● 數據采集器安裝靈活方便,施工簡單,綜合成本低;

● 系統計量準確,通訊可靠性好。手持數據采集終端采用掌上PDA,美觀、輕巧、耐用;

● 水費自動結算,避免人工錄入出錯;

● 抄表、管理功能齊全實用,切實符合客戶供水管理的實際需要。

2、技術規范

● 通信平臺:NFC_T采用433MHz通信平臺,具有不受地理限制、穩定、可靠、成本低等優點;

● 無線喚醒功能:可通過無線將NFC_T喚醒,平時則處于休眠狀態以減少能耗;

● 歷史數據查詢功能:操作人員可以通過PDA讀取指定NFC_T上的歷史數據,并且可以指定歷史數據的起止時間;

● 短距離無線抄表系統所有設備電池電壓實時監測;

● 短距離無線抄表系統的NFC_T設備外殼采用全密封防水設計,可適應野外露水和被水浸泡,符合IP68標準。

3、系統方案

系統由水表、NFC_T、PDA(手持數據采集終端)和計算機系統構成。

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