Institute of Electronics and Computer Science, 14 Dzerbenes St., LV-1006 Riga, Latvia.
Sensors (Basel). 2021 Mar 16;21(6):2068. doi: 10.3390/s21062068.
This paper presents a wearable wireless system for measuring human body activities, consisting of small inertial sensor nodes and the main hub for data transmission via Bluetooth for further analysis. Unlike optical and ultrasonic technologies, the proposed solution has no movement restrictions, such as the requirement to stay in the line of sight, and it provides information on the dynamics of the human body's poses regardless of its location. The problem of the correct placement of sensors on the body is considered, a simplified architecture of the wearable clothing is described, an experimental set-up is developed and tests are performed. The system has been tested by performing several physical exercises and comparing the performance with the commercially available BTS Bioengineering SMART DX motion capture system. The results show that our solution is more suitable for complex exercises as the system based on digital cameras tends to lose some markers. The proposed wearable sensor clothing can be used as a multi-purpose data acquisition device for application-specific data analysis, thus providing an automated tool for scientists and doctors to measure patient's body movements.
本文提出了一种可穿戴无线系统，用于测量人体活动，该系统由小型惯性传感器节点和主集线器组成，通过蓝牙传输数据以供进一步分析。与光学和超声技术不同，所提出的解决方案没有运动限制，例如不需要保持在视线内，并且无论其位置如何，它都可以提供有关人体姿势动态的信息。考虑了正确放置传感器在人体上的问题，描述了可穿戴衣物的简化架构，开发了实验装置并进行了测试。通过进行多项体育锻炼并将性能与市售的 BTS Bioengineering SMART DX 运动捕捉系统进行比较，对该系统进行了测试。结果表明，我们的解决方案更适合复杂的运动，因为基于数字摄像头的系统往往会丢失一些标记。所提出的可穿戴传感器衣物可用作特定于应用的数据采集设备，从而为科学家和医生提供了一种测量患者身体运动的自动化工具。
