Site said, "Life Science" The American team of Duke University of America created a new smart phone system that can determine your location within a building, which is not able to Global Positioning System "GPS" of his work so far.

And runs a "SurroundSense" to send information from a sensitive accelerometer, a camera and microphone with your phone, to a server generates a fingerprint that indicate where you are.

The movement of "Life Science" for a team member saying he can not talk about any tool of sensor units, but that when the data involved visual, auditory, motor creates a unique fingerprint of a vacuum.

The Web site said a margin of error in determining the site did not exceed 13% when it was tested in 51 different location by using all the possibilities of remote sensing into the phone.

The site that the system needs to be a long period of work and processing, which can not work until now, when it is put the phone in a briefcase or the like, which disrupted a camera phone to work.