Spring 2016 3DOT Goliath, CDR Debrief
By: Ayman Aljohani (Project Manager)
Introduction:
Critical Design Review(CDR), is an important phase of the project, it presents the design of the project. It also provides a clear view on the project standing and percent completion.
After presenting our CDR, we were debriefed by the president, and the customer on our presentation content .
Here is the debrief summary:
Title Page:
Was good, nothing to comment on.
Executive Summary
weakness:
Too much information was provided in the executive summary
correction:
Keep it short and simple
Only explain the major features of the project
System Design
weakness:
Missing 3Dot Components on the System Block Diagram
Poly fuses
LDO
LIPO Charger
strength:
Paul commented that the color coding on the system block diagram and the legend, it was easy to follow.
Experimental Results:
weakness:
Problem with the analog Schmitt trigger
However, Elec. Engineer, Kevin, found out the problem and fixed the output of the threshold voltage on 4/20/2016. The president is also notified about the fix on the threshold voltage issue.
Our goal of the Schmitt trigger is to convert analog signal to a digital signal.
Subsystem Design
No comment, it was good.
Interface Design
weakness:
messing 3DOT components.
correction:
Include 3Dot components
Custom PCB Design
weakness:
The custom PCB was not designed to be able to attach onto the 3Dot board as a shield. The point of this design is to avoid the number of wires being used to connect to the microcontroller.
correction:
Have custom PCB attach to the 4 pins on the 3Dot.
For future design reference it will follow a similar design shown by the following site:
https://www.adafruit.com/products/94
Software Design
weakness:
The lockdown code that will disable the robot after 3 hits from the enemy was not included.
Verification & Validation Test Plans
Everything was good for the verification and validation test plans.
Project Updates
strength:
Smartsheet is good to use
weakness:
The actual cost of the free items was not included
Fix the uncertainty for the resource report, it should be zero uncertainty.
WBS should not have a repeated loop process
Project Demonstration
it was a good demo.