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Wi-Fi新技术或使手机电池续航时间增加一倍  

2011-07-07 19:11:10|  分类: 汽车 时尚 资讯 |  标签: |举报 |字号 订阅

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Wi-Fi新技术或使手机电池续航时间增加一倍           消息来源:TechCrunch

据美国科技博客网站TechCrunch报道,美国杜克大学计算机系研究生贾斯汀·曼维利尔(Justin Manwelier)日前开发出一款名为SleepWell的软件,有望使手机电池续航时间增加一倍。

Wi-Fi无线技术在带给用户许多便利的同时,也存在一个很大的缺陷。例如,用户在下载最新视频时,不仅要与其他下载大容量文件的用户分享Wi-Fi资源,还会大大消耗电池能量。曼维利尔的SleepWell软件有望缓解用户这种困窘,使手机电池续航时间增加一倍。该软件可以使Wi-Fi设备在带宽增多以前,一直处于待机状态。

这意味着用户或许必须等待数分钟才能继续观看视频,但却会提高电池续航时间。SleepWell软件有助于使信息下载效率最大化,它会在周围设备完成下载时,对用户手机 Wi-Fi设备进行提示。大多数Wi-Fi在附近设备下载信息时必须“保持清醒”,在此过程中消耗掉大量电池能量。

曼维利尔说:“安装了SleepWell软件的Wi-Fi设备可以错开它们的活跃周期,将与其他设备下载信息重叠的时间降至最低程度,最终大大节省电池能量,同时对设备性能的影响可忽略不计。”

Wi-Fi设备所在位置也会影响其性能,在越拥挤的地方(如城市),下载信息耗时越长。同时,随着云计算日益受欢迎,用户连接Wi-Fi无线网络的原因也会更多。曼维利尔称,让一台支持Wi-Fi的设备处于待机状态,直至另一台设备完成下载,这会同时增加两台设备的电池续航时间。目前尚不清楚 SleepWell软件发布的具体时间 。

New Wifi Tech Could Double Your Phone’s Battery Life

Wi-Fi新技术或使手机电池续航时间增加一倍 - 老虎大叔 - 活在过去

If you ever get the sense that someone on the wifi network you’re using is hogging all the juice, you may be right. Not only does sharing wifi with others downloading large files interfere with your enjoyment of the latest viral video, but it can majorly drain your battery as well.

A new solution from a Duke University computer science graduate student could alleviate your frustrations and potentially double your battery life by allowing your wifi device to “nap” until more bandwidth is available. This means you might have to wait a couple minutes to watch your video, but that could be a productivity boon anyway.

Wi-Fi新技术或使手机电池续航时间增加一倍 - 老虎大叔 - 活在过去
Justin Manwelier‘s SleepWell is a piece of software that helps maximize download efficiency by alerting the wifi device in your phone when a download is finished on a neighboring device. Most wifi devices have to “stay awake” while waiting for their turn to download, draining a good deal of battery in the process.

“The SleepWell-enabled wifi access points can stagger their activity cycles to minimally overlap with others, ultimately resulting in promising energy gains with negligible loss of performance,” Manwelier said in a statement.

The proximity of wireless devices affects their performance as well, with longer download times in more crowded areas, like cities. And, as cloud computing continues to grow, the reasons for connecting to wifi will increase. Putting a wifi-connected device on standby until a download from another device is complete increases both devices’ battery life.

No word yet on when SleepWell will be released, but once it is, we can all look forward to having more time to surf before seeking out an outlet.

 

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