Motion trajectory tracking device and method thereof

Abstract

The invention discloses a motion trajectory tracking device and a method thereof. The device comprises an optical positioning device and a six-degree-of-freedom magnetic suspension structure; the six-degree-of-freedom magnetic suspension structure comprises a magnetic cavity fixedly connected with a motion carrier and a magnetic suspension body which suspends in the magnetic cavity, the six surfaces of the magnetic suspension body having residual magnetic fields; the magnetic cavity forms a hexahedral space and is movable relative to the magnetic suspension body; and the polarity of a second permanent magnetic layer disposed on any surface of the magnetic cavity is the same as the polarity of a first permanent magnetic layer arranged on one surface of the magnetic suspension body which isopposite to the one surface of the magnetic cavity, and therefore, repulsive magnetic forces can be simultaneously generated at the six surfaces of the magnetic suspension body, and a six-surface magnetic force balance state can be realized. With the above technical schemes adopted, the three-dimensional magnetic suspension structure is ingeniously designed, so that six-degree-of-freedom suspension can be realized, and therefore, the motion state change of the carrier is converted into the position change of the magnetic suspension body in the magnetic cavity; and the position change of the magnetic suspension body in the magnetic cavity is detected in real time through the optical positioning device, so that the trajectory tracking of the motion carrier is realized.

Description

technical field [0001] The invention belongs to the field of motion track tracking, and more specifically relates to a light-magnetic combined motion track tracking device and method thereof. Background technique [0002] In current technology, GPS is usually used for positioning and navigation, but GPS needs satellite assistance to complete and the cost is high; there are also external position sensors (such as radar, ultrasonic, laser, and camera) to track the trajectory of moving objects. These methods have complex structures , and there are strict restrictions on the movement area of ​​objects, which is not convenient for actual use. With the continuous development of unmanned driving technology, the moving body needs to position itself during the movement to achieve inertial navigation. In recent years, inertial navigation technology has been widely used in aerospace, navigation, automotive electronics, robotics, deep sea exploration and other fields. For important app...

AI Technical Summary

Problems solved by technology

However, the accuracy of the existing MEMS sensor is not high, and it can only be used in some fields that do not require high precision.

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