Method for acquiring 3D motion trace of object

Abstract

The invention provides a method for acquiring a 3D motion trace of an object. The method comprises the following steps: setting at least one fixed object as a position reference point, wherein, one position reference point is arranged at a motion starting point of the object, and transferring position information of the position reference point to the object as the current motion reference point of the object; measuring an orientation value, a height value above a sea level and an acceleration value of the object in motion with an orientation sensor, a height value above the sea level sensor and an acceleration sensor arranged on the object; calculating the object motion trace with the orientation value, the height value above the sea level and the acceleration value in combination with the current motion reference point of the object, and storing the object motion trace in a storage part of the object; and correcting the object motion trace according to the position information of theposition reference point to obtain the corrected object motion trace when the object passes through the position reference point. The method can help obtain the position, the orientation and the 3D motion trace of the motion object anytime, and solve the problem of being lost in road and direction.

Description

technical field

[0001] The invention relates to a method for obtaining a three-dimensional motion trajectory of an object, in particular to a method for calculating a three-dimensional motion trajectory by using an acceleration sensor, an orientation sensor, and an altitude sensor, and using a plurality of position reference points to correct the three-dimensional motion trajectory to obtain a self-motion trajectory. Background technique

[0002] From ancient times to the present, people have been exploring how to locate their own location and orientation, so as not to lose their way and fail to reach their destination. The appearance of the early compass provided a convenient solution for people to determine the orientation, but because of its function of providing general orientation information, the accuracy of the orientation was not high, and it was impossible to know the information of the location. The appearance of the compass has improved the accuracy of the azimuth...

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