Posture Sensing Device: MAE 156B Week 5
Team Members: Wesley Chipeco, Martin Vega, Kevin Sperzel, Jesus Martinez
Overview of Status of Analysis, Design, Fabrication, Tests, etc.
Phone app:
•We can connect two Sensortags at the same time and have data output for both
•Conducted tests with sensor placement on back
•With low-pass filter applied we get noise of approximately .5 degrees when sensor is stationary, when placed on back it is approximately 2 degrees (noise due to breathing)
•Added calibrate button that user presses when they have good posture
•Whenever user deviates more than 5 degrees from calibrated position a timer sets off to indicate how long bad posture is maintained
•If bad posture is maintained for longer than 10 seconds a vibration will be set off on user’s phone
PCB design:
•Will meet with Frank to discuss Altium student license
•We 3D printed a couple of housing prototype for Sensortag
•Looking at pcb design similar to ours from previous MAE 156B class project
Accomplishments from Previous Week
Finished rough draft of report
Goals for Next Week (list names after each item). Use specific and measurable objectives.
Kevin: PCB modification to Sensortag
Martin: PCB modification to Sensortag
Wesley: Add more functionality to phone app
Jesus: Add more functionality to phone app
Sponsor Comments from Last Meeting and Actions Taken to Address these Comments (Person, March, 27th 2016)
Sponsor liked self-calibration method and we will continue to design a shirt that holds two sensors intact.
Instructor Comments from Last Meeting and Actions Taken to Address these Comments (Week 4 2016 )
Professor Dave Gillett mentioned that Frank has student license for Altium available and his student might have time to help us out. As a result we have set up a meeting with Frank.
Risks and Areas of Concern
Reaching our Week 6 deadline for PCB completion.
Describe upcoming milestone
Designing shirt with sensortag attached.