能量收集物節(jié)點(diǎn)的功率轉(zhuǎn)換選項

　　環(huán)境能量收集是物聯(lián)網(wǎng)傳感器節(jié)點(diǎn)的一種可能的電源，但需要小心管理。除非基于太陽能或熱技術(shù)的收割機(jī)，例如，被設(shè)計為與常規(guī)電路兼容，DC / DC轉(zhuǎn)換器需要進(jìn)行優(yōu)化的低電壓輸入。

　　物聯(lián)網(wǎng)的傳感器節(jié)點(diǎn)往往需要放置遠(yuǎn)離可靠的電源，但多年經(jīng)營。雖然長壽命蓄電池提供供電這些設(shè)備的一個選項，一個日益可行的替代方法是使用環(huán)境能量收集，使用光源，如振動，溫度差。

　　能量收集設(shè)計的關(guān)鍵問題是，權(quán)力的來源往往是高度可變的，以及不可預(yù)測的。對于電子功能，收獲元素提供的功率需要使用一個或多個功率轉(zhuǎn)換級來調(diào)節(jié)。

　　In most cases， the peak energy available for harvesting does not coincide with the peak demand of the system， which will entail storing excess energy within the system， using a component such as a supercapacitor， so that it is ready to be applied when needed. Typically， harvesting will allow the system to accumulate energy over a long period of time， during which most of the system itself will be asleep to cut its power demand. When the system wakes up to take readings and send recorded data over a network， it taps into this reservoir of accumulated energy.