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XPS Overview
To see Skyhook's hybrid positoning system (XPS) in action, view a demo now:
XPS - Combining Location Sources
Skyhook's hybrid positioning system (XPS) is a software-only location solution that allows any mobile device with Wi-Fi, GPS or a cellular radio (GSM/CDMA) to determine its position with an accuracy of 10 to 20 meters. Unlike other hybrid location solutions, XPS uses land-based Wi-Fi access points, GPS satellites and cellular towers to determine location information. The XPS platform provides a fast, accurate and reliable location source to mobile applications and services by leveraging the strengths of each underlying position technology.
The following graph illustrates the performance of XPS relative to assisted GPS (A-GPS) and WPS (Wi-Fi location).
XPS is configured to integrate and synthesize the location output of Skyhook's Wi-Fi Positioning System (WPS), GPS and cellular towers (Cell ID). It then uses advanced hybrid positioning algorithms to combine each of these location sources to arrive at a single position with a high degree of confidence.
Use Case
In a typical scenario, a mobile consumer runs a location application - e.g., map navigation - to obtain directions to a business meeting. The mapping application launches the XPS client engine, which then scans the area for signals from Wi-Fi access points (APs), GPS satellites and cellular towers. XPS uses the unique "signature" of each Wi-Fi access point, the Cell ID of nearby towers and GPS to arrive at a precise location (within 10m to 20m). The entire process takes roughly 100-150 milliseconds on mobile devices. The corresponding location result is then fed directly to the map navigation application, resulting in an improved user-experience.