Subsystem Build & Test
Table of Contents
Team Vision for Subsystem Level Build & Test PhaseDuring the subsystem build and test phase the team planned on assembling each individual subsystem of our design. Following assembly, the plan was for each subsystem to be evaluated. The evaluation would allow the PCB to be ordered. In reality we were able to get each subsystem: location sensing, force sensing, power management, and data calculation working. The next steps are polishing the data we collect (coordinate vs distance and force vs voltage), integrating into one package, and testing.
Updated Customer Requirements
Design and Build Progress
PCBLink to other PCB pictures.
PackagingThe packaging was created using Creo Parametric CAD software and 3D printed using ABS plastic at the RIT Construct. The electrical components that will be housed in this packaging are the raspberry pi and juicebox (grey), DWM module (green), accelerometer (red), battery (pink), and PCB (not pictured - will sit on top of DWM). Spacers are used to attach electrical components to the packaging and to each other.
Test Results Summary
Force Sensor Calibration
The Tekscan A301 force sensor included a guide on how to calibrate and integrate the sensor into an OEM. The guide was followed but some adjustments were needed. First, the circuit seen below was built on a breadboard.
Force Sensor Calibration
Sensor Communication Overview
Risk and Problem Tracking
Link to our Risk Management Document.
Link to our Problem Tracking Document.
Plans for next phase
Individual Responsibilities to Achieve Team Goals
- Martine Bosch
- Optimize packaging and design top. (6 hours)
- Test shoe attachment. (5 hours)
- Begin working on team paper and poster. (4 hours)
- Assist team with testing as needed. (4 hours)
- Nick Petreikis
- Assist in clocking out data from ADC (3 hours).
- Perform tests on system once integrated (heat, sample rate, weight) (12 hours).
- Assist in redesigning any components needed (5 hours).
- Order components needed for final product (3 hours).
- Matthew Devic
- Work on code/equations to calculate the exact location (XYZ) from all of the gathered distances we have. (4 hours).
- Incorporate accelerometer into the whole system with Hrishi. (4 hours)
- Help optimize weight of the whole system and packaging. (2 hours)
- Solder and attach all of the systems and components as needed. (2 hours)
- Test charging and battery life capabilities once new juicebox zero arrives. (2 hours)
- John LeBrun
- Thread sensor-wires such that they are unobtrusive.
- Order new wiring for sensors such that they are replaceable.
- Solder new power switch to the juicebox
- Ensure wiring connections survive typical-to-rough usage.
- Hrishikesh Moholkar
- Get the new accelerometer working (4 hours)
- Rectify the x,y,z coordinates for DWM1001 (3 hours)
- Send data to server (2 hours)
- Rectify sampling rate (2 hours)