Design Of The Human Motion Attitude Detection System

Human motion attitude detection has very important practical value in daily life,such as medical diagnostics,sports training,bionic engineering and other fields.Recently,the development of MEMS technology makes the features of its small size,low power consumption,low cost and broad dynamic range more and more prominent.This paper designs a human motion attitude detection system based on mpu-9255 senor which realizes human motion attitude detecting by collecting the motion attitude data using the sensor.Firstly,the fundamental theoretical knowledge of human motion attitude detecting is introduced,including which the basic steps of human motion attitude detecting,the establishment of human body model and the calculation of human motion attitude: and the quaternion algorithm is emphatically introduced.Then,this paper detailedly designs the whole system scheme,hardware and software of human motion attitude detection system,which is composed of 9 attitude measurement units.The hardware contains the application circuit of mpu-9255 sensor,the control circuit of attitude measurement unit and the power supply circuit.The design of software contains the attitude data receiving soft and attitude simulation soft.Finally,the hardware and software of the system were assembled,debugged and tested in order to verify the validity of the attitude detecting unit.The experimental results prove that the designed system realizes the detection of basic human motion attitude,meets the basic requirements for system design basic demand of the system,and lays the foundation for the further research.