用于能量收集的物聯(lián)網(wǎng)節(jié)點的超低功耗智能和功率管理設(shè)備

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

　　物聯(lián)網(wǎng)預(yù)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(jié)構(gòu)傳感和工業(yè)監(jiān)測從工廠到農(nóng)場。日益復(fù)雜的技術(shù)使我們能夠安裝新的，或加強現(xiàn)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(shè)備和一些情報。

　　許多物聯(lián)網(wǎng)的最終節(jié)點將是以前無關(guān)的對象，現(xiàn)在能夠提供少量的數(shù)據(jù)定期，也許是罕見的基礎(chǔ)。改進的訪問，通過互聯(lián)網(wǎng)，這種更頻繁，變化和眾多的傳感器數(shù)據(jù)，將提供更好的洞察系統(tǒng)和網(wǎng)絡(luò)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.