In DP3 we had the chance to propose our own wearable device to incorporate sensors. Realizing the emerging health issues related to prolonged screen use, we designed a headband with embedded distance sensors to detect the posture of the user’s head and neck as well as the distance from the user’s head to the screen.
For the final deliverables, we were required to design a Raspberry Pi Housing to store the Raspberry Pi and other electronics that the device requires. In addition, we wrote a python code to demonstrate the functions of our wearable device.
The Head-Banned Bad Posture is a flexible headband with two embedded distance sensors and one vibrator. With one sensor facing up and detecting the distance to the ceiling and the other one facing straight forward and detecting the distance to the screen, the relative position of the user’s head can be accurately calculated.
The design of the Raspberry Pi Housing allows the user to securely store the Raspberry Pi, LCD screen, and fan in the moveable drawer. In the meantime, the Headband along with sensors and supplies are stored in the second layer and can be easily accessed by opening the lid.
Device Design of the Headband
Raspberry Pi Housing Design
During DP3 I was part of the modelling sub-team and was mainly involved in designing and 3D printing the Raspberry Pi Housing model. I also helped my teammates with ensuring the functions of the python program and making videos to assist our final presentation.
Milestones and Additional Worksheets
Technical Skills:
🔧Autodesk Inventor & 3D Printing
📝Creating Project Gantt Chart and Planning Activities
⚙️Raspberry Pi Board Design
✏️Sketching Skills
Soft Skills:
👥 Team Dynamics and Communications
🕛 Time Management
Team31_DP3_DesignReport (2).pdf
<aside> 💡 Overall, I believe that Design Project 3 is definitely more challenging in terms of the skills required as well as the time needed to be allocated to this project. At the beginning of the project, I was quite confident on my modeling skills, but after building the Raspberry Pi housing that met the design constrains while limiting the materials used for fabrication, I now understand that there are a lot more to learn about for 3D modeling.
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