如何構建智能電網的無線數據集中器

　　本文討論如何為智能電網構建一個數據集中器，它使用傳入數據來減少無功損耗，并處理診斷和故障檢測。它著眼于無線技術，如cc1120和接口與控制器的智能能源設計如處理器Sitara AM335x線優化。

　　智能電表正在迅速部署，以滿足這項技術在歐洲范圍內達到百分之八十的家庭2020的任務，而實現這一目標的關鍵技術之一是使用集中器。每臺安裝的電表直接與公用服務器通信的技術和經濟挑戰使得一對一的解決方案很難實現，因此集中器是支持大型安裝的自動計量基礎設施（AMI）的關鍵方法。

　　通過自動抄表（AMR）測量，儀表數據與中央計費站的通信將是無縫的。除了收集用于計費的能源使用信息外，公用事業提供商還可以使用AMI分析計量網絡中的故障，并在不需要工程師的情況下遠程找到解決方案。

　　Figure 1： The smart utility network.

　　The data concentrator is a critical node in the AMI， connecting several utility meters to a central utility server， simplifying the communication links of the energy service provider. These are used at several points in the infrastructure to securely aggregate data from a manageable number of meters and relay the information to the centralized utility servers.

　　The connection between the meters and the concentrator can be handled in several ways， but wireless is emerging as a cost effective and efficient way of linking multiple meters to a central aggregator. The frequency of the data fed back to the central servers ranges from an hourly feedback meter to real-time meters with a built-in two-way communication structure. These systems have the capability of recording and transmitting instantaneous information， providing more information on the load of the various end points that are actively consuming energy.