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Wednesday, December 12, 2012

Microsoft Researchers Decrease GPS Power Need ... via the Cloud

In a paper titled, "Energy Efficient GPS Sensing with Cloud Offloading", Microsoft researchers propose a potential solution to this battery power and size dilemma. This paper describes cloud-offloaded GPS (CO-GPS), an innovative way to perform location sensing by using tiny embedded devices and the cloud to share the work of GPS signal acquisition and processing. By logging only a few milliseconds of raw GPS signals, the device can store enough information for resolving GPS-based location, and it consumes two to three orders of magnitude less energy than stand-alone or mobile phone GPS sensors. The signals are then sent to the cloud with sensor data to reconstruct the location and time that the samples are taken. In delay-tolerant, data acquisition applications—such as animal tracking, float sensor networks, participatory environmental sensing, and long-range time synchronization—CO-GPS is ideal for extending the battery life of mobile devices.

- Microsoft Research Connections Blog

by Adena Schutzberg on 12/12 at 04:24 AM | Comments | Bookmark and Share

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