Wearable multinode three dimensional motion monitoring system based on wireless body area network

Abstract

A wearable multinode three dimensional motion monitoring system based on a wireless body area network can synchronically collect and monitor human body multisection, multijoint and multi freedom motion data in real time; posture resolving is carried out for the collected motion data, and the result is sent to a mobile intelligent terminal in a Bluetooth communication mode; multinode data acquisition frequency can be above 900Hz; human body motion posture data output rate after posture resolving can reach 150Hz, thus satisfying human body whole motion condition real time monitoring demands; in addition, aiming at multinode motion data features, a corresponding multinode acquisition data structure is built, a dynamic array of corresponding size is opened in a memory, and read-write lock characteristics are fully utilized so as to ensure real time data acquisition accuracy and completeness; a plurality of threading for different tasks are built in the system backstage so as to realize three dimensional motion monitoring system multinode data acquisition, bluetooth communication, posture resolving and visualization function on the mobile terminal, thus satisfying human body motion obstacle diagnosis and assessment clinic demands.

Description

technical field [0001] The invention relates to a device in the field of medical assistance, in particular to a wearable multi-node three-dimensional motion monitoring system based on a wireless body area network. Background technique [0002] Exercise is an important physiological function of the human body. The human body is prone to movement disorders or loss due to physical disabilities, damage to the nervous and musculoskeletal systems, or senile diseases such as stroke and Parkinson's disease. Therefore, the realization of human exercise Real-time monitoring and evaluation are important means of clinical diagnosis and rehabilitation training, and related series of products are also playing an increasingly important role in clinical practice. [0003] In order to realize the clinical diagnosis and evaluation of human movement disorders, a basic requirement of the human movement monitoring system is to be able to accurately collect multi-segment, multi-joint, multi-degre...

AI Technical Summary

Problems solved by technology

However, compared with the present invention, this technology has its disadvantages and defects: this technology uses the data of the corresponding node of the tracked object to be collected every preset time, but the preset time is not indicated, and the real-time performance of data collection cannot be judged.

Secondly, this technology does not see the integrity processing of the collected data when realizing Bluetooth communication, such as adding any tag information to the frame structure of the transmitted data to check the transmission quality of the data or judge whether the data is lost

Finally, this technology focuses on the data collection and transmission process of motion nodes. There is no processing of motion posture information and 3D visualization display functions on mobile terminals, which is difficult to meet the clinical needs of human motion disorder diagnosis and evaluation.

Images