Method and system for cascade rigid body motion tracking and walking process tracking

Abstract

The invention provides a method and a system for tracing cascade rigid motion. The method for tracing cascade rigid motion includes steps of measuring attitude data of each cascade rigid body, establishing rotation matrix corresponding to the rigid bodies according to the attitude data, building a cascade point set consisting of cascade points and two end points of the cascade rigid bodies, selecting one point in the cascade point set as a known point by utilizing the cascade point set as a processed object, multiplying the coordinates of the known point with the rotation matrix of the corresponding rigid body so as to acquire the coordinates of another cascade point of the rigid body, and sending data of the coordinates of the cascade point set to a motion tracing center so that the motion tracing center can drive the corresponding portion of a model of the cascade rigid body to move by utilizing data of the coordinates and show the motion process virtually. The invention further provides a method and a system for tracing walking processes. By the aid of the method and system for tracing cascade rigid motion and walking processes, motion tracing is simple and convenient, limit factors are fewer and data are accurate.

Description

Technical field [0001] The invention relates to the field of micromechanical (MEMS) motion tracking, in particular to a cascaded rigid body motion tracking method and system, and a walking process tracking method and system. Background technique [0002] Moving object tracking technology has been widely used in various fields, especially in aerospace and navigation, antenna radar, and human body motion posture modeling. In recent years, with the rapid development of MEMS, motion tracking technology has gradually merged into the concept of MEMS, miniaturizing and integrating the measurement components required for motion tracking to form a collection of micro mechanisms, micro sensors, micro actuators, and signal processing and control circuits Equal to a one-piece miniature motion tracking device. These devices have the characteristics of low cost, small size and light weight, so they are widely favored by people. [0003] Moving object tracking requires first obtaining the postu...

AI Technical Summary

Problems solved by technology

These methods are applied to multi-segment cascaded moving object tracking, and the results are often not ideal: the light capture method is limited by the brightness of the light, and the obtained attitude data is inaccurate; the electromagnetic method is limited by the electromagnetic strength, and if the signal is weak, without additional With the cooperation of the auxiliary electromagnetic launch device, the obtained data is not accurate; the acceleration integration method inevitably has accumulated errors due to the integration process, and the attitude data will deviate from the real situation over time

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