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首頁 > 新聞中心 > 新聞中心

WMRNET-III 超低功耗水表、燃氣表無線抄表系統 - APPCON

時間:2015-03-20點擊數:7394

WMRNET-III是專為水表、氣表集抄開發的無線自組織網絡系統,網絡采用非常穩定的MESH網絡結構,組網速度、抄表速度快,一次抄表成功率非常高,抄表成功率超過99%。網絡的特點是超低功耗運行,在水表與燃氣表整個設計生命周期內節點模塊無需更換電池。網絡內模塊節點之間通訊距離400米,室外網絡覆蓋半徑3千米,非常適用于普通工業樓宇群、大型高層建筑社區等新建及老項目改造。


網絡工作于433MHz470MHz頻段,由無線集中器APC930M和無線網絡節點模塊APC240FAPC240N組成,適用于市場主流的各種脈沖、光電水表和燃氣表。


網絡系統采用主從式機制,集中器控制網絡的一切活動。一個集中器可可以控制1024個節點,可支持8級路由。系統在上電以后,系統自動組建網絡,自動維護和優化網絡路由,無需用戶干預,自動發現和刪除節點。新節點在一定時間內可以被網絡發現,節點地址被被網絡識別后將節點加入網絡當中,被移除節點的路由等信息在可設定的時間內被刪除。任意節點既可以作為子節點,又可以作為父節點。任意節點支持多個父節點,任意節點有多條到達集中器的路由,并且節點傳輸數據時動態的選擇優化路由,任意節點都具有路由器與中繼功能。處于級數比較多的節點,向集中器傳輸數據的時候,通過上一級父節點轉發數據,然后它的父節點再通過其它節點傳輸到集中器,每個節點有多個父節點,使網絡更加可靠,同時擴大了網絡的覆蓋面積。若在網絡中若干個節點出現故障,或者被移除,絲毫不會影響網絡的通信,集中器可以通過其它節點找到失去父節點的節點。通過集中器發送命令,可以了解網絡節點的數量、地址、級數以及路由等情況。

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