[Research] Kinematic Data Capture Using Smart Devices

This summer I worked on kinematic data capture framework for KICR (Kinematic Information Capture and Reporting) system. This research is funded by Bucknell Program for Undergraduate Research, under supervisor of Professor Michael Thompson.

Figure 1: My workspace

The KICR project‘s main goal is to develop a system that collects a ADHD patient’s movement data from mobile computing devices, which is then aggregated, analyzed, and delivered to a clinician as relevant, quantitative information. As part of the KICR project, my main job is to develop data capture app that collect sensor data of smartphone and have those data ready for analysis. We expected that the app is going to run for long time on the phone, so it is needed to optimize the app so that it use reasonable amount of phone resources. Although the framework is specifically designed for the KICR project, it can act as the tool for researcher to explore motion sensor data of mobile devices.
I developed the app on two different app development framework: PhoneGap, a multiplatform framework using HTML5 and Android native app development framework. PhoneGap platform is somewhat limited and also consume a lot of resources, so in the end I only focus on making the native Android app. To optimize resources, I put all sensor activities into background service so that it can still record even when the phone is sleeping. I also add some customizable features such as choosing sensor, leveraging sensor capture rate and email log files. The final output of the app is sensor log files in form of csv file, which is convenient for analysis.

Figure 2: Human subject capture test

I did some analysis on app performance and the consistency of sensor log files, and the result is that the phone can capture data well. The app that I developed is used in fidget movement capture test with the purpose of understanding human’s movement data captured by the phone.

More details of my work can be found on Bucknell Website: Hang Ha ’18, electrical engineering, research

Figure 3: My research poster