Using Multiple Barometer Sensors to Detect the Floor Location of Smart Phones


Posted July 12, 2016 by industryfans

Following the popularity of smart phones and the development of mobile Internet, the demands for accurate indoor positioning have grown rapidly in recent years.

 
Following the popularity of smart phones and the development of mobile Internet, the demands for accurate indoor positioning have grown rapidly in recent years. Previous indoor positioning methods focused on plane locations on a floor and did not provide accurate floor positioning.

In this paper, we propose a method that uses multiple barometers as references for the floor positioning of smart phones with built-in barometric sensors. Some related studies used barometric formula to investigate the altitude of mobile devices and compared the altitude with the height of the floors in a building to obtain the floor number. These studies assume that the accurate height of each floor is known, which is not always the case.

They also did not consider the difference in the barometric-pressure pattern at different floors, which may lead to errors in the altitude computation. Our method does not require knowledge of the accurate heights of buildings and stories. It is robust and less sensitive to factors such as temperature and humidity and considers the difference in the barometric-pressure change trends at different floors. We performed a series of experiments to validate the effectiveness of this method. The results are encouraging.

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Issued By Sherry
Website Industry sourcing & Wholesale industrial products
Country China
Categories Business , Retail
Tags barometer sensor , barometer sensors , electrochemical gas sensor , infrared co2 sensor , ndir co2 sensor , ndir gas sensor , ndir sensor , semiconductor gas sensor
Last Updated July 12, 2016