Abstract: At present,many fields,such as military,medical care,science and technology,movies,games and many other applications need to capture moving trajectories of moving objects.Existing mobile trajectory recognition and mapping methods generally have high requirements for equipment and have complex algorithms.What’s more,their real-time performance is not ideal.This paper presented a multi-sensor data fusion based mobile trajectories capture mechanism with the intelligent mobile terminal as the carrier,combined with the use of acceleration sensor and attitude sensor to collect data.Through the fusion of the data and the application of the relationship between acceleration and displacement and the relationship between curve and straight line,accurate identification of moving body movement can be acquired.After that,the mobile trajectory can be projected onto a two-dimensional space using the principle of optical perspective projection and mapped on the screen of the intelligent terminal.Experimental results show that the mechanism with high accuracy and real-time performance has the ideal time and space complexity.

Key words: Acceleration sensor,Attitude sensor,Data fusion,Moving track capture