The Indooratlas field Positioning system can also be positioned inside

Recently, according to news reports, because the use of GPs in buildings may be ineffective, Finland Oulu University researchers (own http://www.aliyun.com/zixun/aggregation/7491.html "" " Own company Indooratlas developed the indoor positioning System (IPS), which uses the geomagnetic field to locate. It may sound implausible, but the research has been adopted, and smartphones can use the app to create indoor maps and IPs applications, and the navigation accuracy can reach 0.1 to 2 meters.

The technology uses a smartphone's magnetometer to locate it. Too many steel structures in the city environment may cause the compass to malfunction, but IPs does not use a digital compass, instead, it uses the phone's magnetometer to mark the magnetic disturbance, thus showing the building's floor plan.

Indooratlas says any mobile phone with a magnetometer can use the app, and the map can be as accurate as 10 centimeters. The system allows users to upload data to a Web map service (such as Google Maps) to view online or to download a field map of the area when they reach a region. Indooratlas is also providing tools for people who want to develop indoor positioning applications.