A student of Duke University, North Carolina, USA under the guidance of assistant professor of electrical and computer engineering managed to find a system that is able to multiply the battery on mobile devices. According to Justin Manweiler, students, a system called SleepWell enabled mobile phones and laptops to work longer by changing the WiFi technology. Manweiler says, gadget-owned energy quickly depleted if no other WiFi enabled devices in the vicinity. In certain cases, each device must be 'maintained' before he started the download of information desired. For example, Manweiler said, when you download a movie in urban areas, the battery will be depleted much faster than if you download the same movie in the area of agriculture quiet. Software developed by Manweiler solve this problem by enabling mobile devices came into the position of 'sleep' when the device around him are still downloading via WiFi. This device not only saves energy, but also other devices that were there. "Cities face the rush hour and workers come and go at about the same time," said Manweiler, quoted from MedIndia, July 7, 2011. "If working hours more flexible, firms can alter the working hours and reduce overcrowding in peak hours. With reduced density, will be more free time even though the number of hours worked remained the same, "he said. Similarly, the word Manweiler, also occurs in the mobile device attempting to access the Internet at the same time. "SleepWell WiFi enabled devices to shift their activity cycle, minimizing the overlap with others, and ultimately result in energy savings without reduction in performance that feels," he said. SleepWell system developed Manweiler presented at the event moblie Conference on Systems, Applications and Services held by the Association for Computing Machinery in Washington DC.
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