用于能量收集的物聯網節(jié)點的超低功耗智能和功率管理設備

　　“物聯網”的精確定義（物聯網）各不相同。一些人把它看作是現有機器向機器（M2M）市場的邏輯延伸，通過互聯網實現遠程控制和監(jiān)控。有些人把這個術語稱為擁抱M2M和更多，涵蓋了網絡對象的更廣泛的概念，無論是通過互聯網或封閉網絡通信。然而，定義的演變，物聯網的概念預計將擴散數以百萬計，甚至數十億嵌入式設備和傳感器的連接。

　　物聯網預計將刺激增長，在遠程監(jiān)控市場，如環(huán)境監(jiān)測，交通監(jiān)測在智能城市，結構傳感和工業(yè)監(jiān)測從工廠到農場。日益復雜的技術使我們能夠安裝新的，或加強現有的，無線傳感器節(jié)點容易和便宜，與另外的傳感器，射頻設備和一些情報。

　　許多物聯網的最終節(jié)點將是以前無關的對象，現在能夠提供少量的數據定期，也許是罕見的基礎。改進的訪問，通過互聯網，這種更頻繁，變化和眾多的傳感器數據，將提供更好的洞察系統(tǒng)和網絡狀態(tài)，提高決策，從而提高我們的生活和節(jié)約資源。

　　Ultra-low-power operation is vital in many of these remote monitoring-type sensor nodes， especially as more intelligence and networking capability is added. These nodes need to be maintenance free， and operate continuously， accurately and reliably for long periods of time. Many will have to rely on energy harvesting and/or long-life batteries for power. They also need to be able to switch to ultra-low-power or hibernation states between data transmissions.

　　Extremely-low-power， yet smarter， microcontrollers are continuing to evolve to meet these requirements together with networked radio communications devices. Power management circuitry is the third essential element. See Figure 1 below.