研究目的
To develop a multipurpose device for analysis of human body movement that allows control of every acquisition process inside, with the possibility to extend the device in the future and use its segments in other custom applications.
研究成果
The developed low power hardware platform can collect data from various sensors and communicate via Bluetooth Low Energy, offering a wide range of settings for future applications. It provides the flexibility to implement new algorithms directly on the hardware platform, not just as a conventional data streaming IMU.
研究不足
The device's wireless communication via Bluetooth Low Energy has a maximal speed of approximately 60kbps, which may limit data throughput for some applications. The embedded software and drivers were developed with a focus on low power or high throughput, requiring the user to choose based on their specific needs.
1：Experimental Design and Method Selection:
The project involved developing a data measurement unit with embedded control for data acquisition, using inertial sensors and Bluetooth Low Energy for wireless communication.
2：Sample Selection and Data Sources:
The device uses an ultra-low power accelerometer ADXL362, barometric sensor MS5611, and ST-Microelectronics inertial sensor LSM9DS
3：List of Experimental Equipment and Materials:
The device is controlled with an STM32L0 family low power microcontroller unit (MCU) and communicates via Bluetooth Low Energy (BLE), using Bluegiga BLE113 module.
4：Experimental Procedures and Operational Workflow:
The sensors are configured via PC software, and data are collected and transmitted wirelessly to a PC or mobile device.
5：Data Analysis Methods:
Data are stored in .csv or .txt files for analysis in Excel or Matlab.
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