低功耗無線傳感器網絡

　　無線傳感器網絡一旦淪為幾個小眾市場，就能夠帶來廣泛的新應用。如果您遵循本文中詳細介紹的建議，設計一個基本的低功耗無線傳感器網絡是很簡單的。

　　全球對“綠色”技術和更好地使用電力的需求正在推動新一代的極端低功耗無線網絡。無線網絡正在開發用于基于遙感傳感器的系統，工業和控制應用。新一代的無線網絡也使更多的應用能夠更好地利用不需要任何網絡電纜或電力線的真正的無線解決方案。

　　基于傳感器的監測和控制網絡不是新概念。有線和專有無線實現都存在技術。有線實現由于其簡單性和低成本特性而得到廣泛應用。另一方面，無線僅限于幾個小眾應用程序。

　　It is possible to develop these types of wireless systems today by utilizing designs that require very little power. Next-generation wireless networks can last longer on their batteries， and require little to no maintenance over the lifespan of the application. In the future， energy harvesting may even provide the power required， eliminating the need for batteries.

　　This article highlights the various extreme low-power control features found on next-generation embedded microcontrollers， as well as how engineers can use these features to extend the expected battery life of wireless sensor nodes.