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Researchers have developed a way to put smart phones almost to sleep to stretch battery life but keep the phones alert for incoming info. Rose Eveleth reports
研究者已經開發了一種能讓智能手機在睡眠狀態下仍能接收信息的節電手段。Rose Eveleth報道
We love our smart phones. Except when they run out of batteries. And we find ourselves cruelly cut off from the wireless world. But new research is extending our coveted smart phone time, by putting the phone almost to sleep.
除開他們吃電大戶這一事實，我們都愛智能機。如果我們從無線世界失去聯系，常常痛不欲生。不過最新研究能通過讓智能機近乎睡眠的方式延長電池使用時間。
Right now, even when your phone is in power save mode, it's still expending a lot of energy listening for incoming information, like calls or text messages. So researchers at the University of Michigan came up with a new technology that could reduce most smart phones' energy consumption by about 44 percent. They presented their findings at the ACM International Conference on Mobile Computing and Networking in Las Vegas.
現在，即使你的手機處于節電模式，它仍然耗費大量電能用于接收信息——譬如，來電和短信。密西根大學的研究者開發一項新技術——它能節省智能機大約44%的耗電量。他們在拉斯維加斯的美國計算機協會（ACM）移動計算及網絡國際會議上發布了他們的發現。
This new power saving mode saves juice by slowing down the phone's wi-fi frequency. That idea’s been around, but the trouble has been making sure the slow phone can still access incoming information. New messages usually come in two parts: a title and a main body. This new mode has the phone listen only for titles. When one arrives, the phone wakes up to receive the rest of the message. Otherwise, it's waiting, mostly asleep—and saving that precious battery life just for you.
這項新的技術通過降低手機wi-fi頻率來節能。這項技術其實一直在開發，困難在于保持手機仍能接收到信息。新信息往往由兩部分構成——標題和主體。這個新模式就是讓手機只接收標題，當一個信息到來時，手機會直到喚醒才會接收信息的剩余部分。否則，它會一直等待，就像是睡著了一樣——這就能為你延長電池壽命。
