System that suppresses battery consumption of smartphones and notebook PCs when using wireless LAN "SleepWell"

ByDerklbot

From 30th JuneThe largest nationwide free public wireless LAN "au Wi-Fi SPOT"With the spread of smartphones, public wireless LAN has been expanding more than ever, such as services started.

Although comfortable operation became possible by high-speed communication, since the reduction of the battery becomes faster, the battery tends to be cut off at the destination. I think whether there are many people who had devised such as manually turning on and off communication by wireless LAN in order to make the battery last longer even a little, but software that automatically performs such operation according to the situation Has been developed.

Duke University Graduate Develops 'SleepWell' System That Doubles Battery Life of Mobile Devices - Softpedia

Justin Manweiler, a graduate student at the Faculty of Engineering at Duke University, has developed a mechanism to use Wi-Fi communication with low power consumption.

Mobile terminals such as smartphones and laptops will consume the battery fairly quickly when connected to Wi-Fi and other terminals in the same state are nearby. This is because we are always on standby in a communicable state on the premise that some information will be downloaded, and if there are a lot of terminals connected to Wi-Fi in the same way nearby, we will be having a fight with the band , It takes a very long time to download a small amount of information, and the battery consumption expires unexpectedly.

Therefore, when another terminal in the vicinity is downloading information via Wi-Fi, software that suppresses battery consumption is developed by placing the terminal in a sleep state. It has the effect of suppressing the battery consumption of the terminal that is communicating as well as the terminal entering the sleep state. He named this system "SleepWell" and presented it at the International Conference of Computer Science Society.

Justin Manweiler responds to the interview in front of the PC


Manweiler compared this idea of ​​software to the rush hour of a big city, "Because the starting hours and working hours are the same in many companies, the salaried workers in big cities get caught up in a terrible rush on the way back. We can move more people comfortably if we introduce them and choose free time for work and leave, and the total amount of working hours will remain unchanged, "said SleepWell We emphasize.

He said that "SleepWell" system proved to be practical after experiments assuming various types of terminals and various scenes. If this system is used, weaknesses of the current public wireless LAN will be overcome and it will become more comfortable to use.