"It provides precise positioning in the room where the use of data from satellite systems is not possible. The application can be useful, for example, for firefighters," said the developer, a postgraduate of the Faculty of Physical Engineering Alexander Mikov. Now he is working to improve the application’s sensor calibration. Currently, the program error rate is 7%.

According to the developer, the application uses data from three electronic sensors - compass, accelerometer and gyro (measuring the speed of rotation). These sensors are available in modern smartphones. By using formulas the program processes data from these sensors and builds an accurate motion path.

"For example, if a person is moving in a mine or a burning building, its trajectory is recorded and the way back can be restored. It is displayed on the screen," said Alexander Mikov.

Military missiles fly along the desired path on similar principles. On household appliances like smart phones, laptop computers - precise positioning is not yet available. Conventional devices use household sensors, which do not allow precise positioning. However, those modern algorithms developed by Mikov improve the accuracy dramatically, even only using the data available in smartphones," said the supervisor of the graduate student Alexei Moschevikin.

Press office of PetrSU