Subsystem Build & Test
Table of Contents
Team Vision for Subsystem Level Build & Test Phase
During the Subsystem Build and Test Phase, the group's main goal was to solidify and order all materials and components for the build phase as well as begin the build. The goal for electrical engineers was to work with integrating components as they became available while the the other engineers worked on plans for the outer build of the incubator as well as ergonomics testing of the initial prototype.
The group was able to accomplish many of the self sought goals for the phase. The electrical build is now well underway while the exterior build is now being started. Mechanical engineers on the team sought help and assistance from the construct on campus to determine if vacuum forming would work for the exterior. While the vacuum former was impressive, the footprint was determined too small and would be difficult to heat the material needed. The ergonomics testing has also been completed, allowing for proper feedback to consider in the design before the exterior build begins while also determining strap placement from the backpack to the incubator. At this point, most components have been delivered to the group and have allowed for a steady process moving forward. Most system testing will be put off until the full assembly is together, but some electrical components have been tested with results seen below.
Test Plans and Results Summary
The test plans can be accessed throughout the EDGE website in a live document and will be updated throughout the semester. All test plans are in the template except for the sanitation and ergonomics. The ergonomics testing has been co,mpleted, but due to the variety of requirements testing within the ergonomics test, the plans were not put into the excel format.
Detailed documentation of test plans were created in order to fully understand the procedure without needing to follow the flow charts in the excel document.
- Battery Test Plans
- Ambient Temperature Sensor Test Plans
- Sanitation Test Plan
- Ergonomics Test Plan & Results
Screenshots of the completed battery and ambient temperature sensor are seen below.
Risk and Problem Tracking
PurposeThe Failure Mode Effects Analysis (FMEA) allows for an in depth evaluation of any potential risks during the use of the product. When evaluating risks, a cause and effect are assigned in order to determine the root of the issue and define countermeasures to lower the potential occurrence.
Updated Assessment OverviewThe document owner is Victoria Tripp.
The updated risk assessment document can be found here.
Thus far, no risks have manifested as problems, but if needed the template of the problem tracker can be found here.
Functional Demo Materials
For the remainder of the course, all review material will be presented through the team EDGE website along with any physically built components and testing results. No extra materials were needed for this phase review.
Plans for next phase
For the next review, the team hopes to have a majority of the subsystem and mechanical build completed to ensure building and testing will be complete by Imagine RIT. The electrical build is well on its way, but issues have arose with the chosen humidifier. These issues are being addressed and the team is hopeful professors will be able to assist in integration. The mechanical build was originally going to be completed on a vacuum former in the construct. After meeting with the construct lab workers as well as Chris, we unfortunately concluded that the footprint would not work well for our deign. Since then, the group has made adjustments and will be starting the mechanical build through manual molding in the next phase. The group also hopes to complete the exterior walls of the incubator in order to begin testing humidity and sanitation. The group is determined to try and begin integrating the electrical and mechanical components by the first week of April.
As individuals on the team, 3 week deliverables have been made for all team members whereas a list of semester deliverables have been made for the electrical engineering team members. The electrical engineering semester list is now up to date, with completed items crossed off the list. The progress will be determined by the ease of build or further complications that may arise. The document can be found here
An updated job gantt for the semester can be seen below. The job gantt has estimated due dates for each task which are likely to change based on when components are received as well as incorporating any build and testing issues that may arise. A live job gantt can be found here.