低功耗無(wú)線傳感器網(wǎng)絡(luò)

　　無(wú)線傳感器網(wǎng)絡(luò)一旦淪為幾個(gè)小眾市場(chǎng)，就能夠帶來(lái)廣泛的新應(yīng)用。如果您遵循本文中詳細(xì)介紹的建議，設(shè)計(jì)一個(gè)基本的低功耗無(wú)線傳感器網(wǎng)絡(luò)是很簡(jiǎn)單的。

　　全球?qū)Α熬G色”技術(shù)和更好地使用電力的需求正在推動(dòng)新一代的極端低功耗無(wú)線網(wǎng)絡(luò)。無(wú)線網(wǎng)絡(luò)正在開(kāi)發(fā)用于基于遙感傳感器的系統(tǒng)，工業(yè)和控制應(yīng)用。新一代的無(wú)線網(wǎng)絡(luò)也使更多的應(yīng)用能夠更好地利用不需要任何網(wǎng)絡(luò)電纜或電力線的真正的無(wú)線解決方案。

　　基于傳感器的監(jiān)測(cè)和控制網(wǎng)絡(luò)不是新概念。有線和專有無(wú)線實(shí)現(xiàn)都存在技術(shù)。有線實(shí)現(xiàn)由于其簡(jiǎn)單性和低成本特性而得到廣泛應(yīng)用。另一方面，無(wú)線僅限于幾個(gè)小眾應(yīng)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.