Integrated System Build & Test with Customer Demo
Table of Contents
Your website should document your journey through MSD, so include work-in-progress as well as latest results. Use pdf's for display whenever possible so that information is easily viewable without the need to download files and open applications. (Your EDGE file repository should still contain original editable files).
All template text must be removed prior to your System-Level Demo with Customer
Team Vision for System Level Demo with CustomerSummarize:
- What did your team plan to do during this phase?
- What did your team actually accomplish during this phase?
Test Results Summary
Electrical team experienced two main issues when attempting to complete the system build. A trace corresponding to channel 1 on board 0xFF was burned by an accidental short. The channel is no longer used and does not correspond to an issue as there are spare channels. The batteries and boards should be loaded with care to avoid this issue; Take care with multiple individuals.
The second issue is with regards to water proofing. A drill location for cable glands was incorrectly chosen due to a lip/embossed section of the case not allowing a proper seal with the provided gaskets. Therefore, a filing of the box and the use of room temperature vulcanized silicon (RTV) was used to seal the glands.
Electronics Box Space ImprovementsCare and analysis was performed to minimize the amount of utilized space in the electronics box. The box is quite full and much time routing the signal wires corresponded to an easier installation. Aditionally, rotating the batery pack from the initial design by 90 degrees saved alot of room. Waterproofing of all entrances to the electronics box was performed utilizing RTV. Furthermore, the cables are installed into personal computer liquid cooling silicon tubing which is fed into Hammond Manufacturing waterproof cable glands. The extra space in the tube was removed by means of injected RTV. All cables inside the box are installed and ready for a preliminary swim.
On The Fly ImprovementsThe battery pack was electrically isolated by means of electrical tape at the holster connections. Previously this posed a high potential shorting issue with a stray/loose wire. Many of the battery holsters became physically, not electrically, disconnected from their nearest neighbor when installing and uninstalling batteries. This was handled by adhering perpendicular reinforcements.
Waterproof TestingThe electronics box was submerged in a 5-gallon bucket for 36 hours to ensure no leak during operation. The possibility of the fish swimming at a low altitude in a large pool may still create a leak. Due to the lack of pool time, corresponding to frigid temperatures, we have yet to test this condition. A 15-minute test of the same nature was performed on the pump box as the pump is water resistant.
Risk and Problem Tracking
Arduino CodeIf a code revision is necessary, a USB cable has been soldered to the Arduino and will be attached to the fish. This minimizes the amount of times the fish will need to be disassembled during a pool test.
Board DamageBoard 0xFF was damaged during installation. A trace on channel 1 has lifted due to an unexpected short.
Pool Testing & WaterproofingIn the case where a deeper pool causes a leak in the electronic box more RTV will be applied to the cable glands and around the silicon tubing. If the leak occurs at a timed exposure longer than the Imagine RIT event the incident will be notarized but not accounted for. (i.e. greater than 8 hours for a leak to occur)
Functional Demo MaterialsInclude links to:
- Presentation and/or handouts
- Notes from review
- Action Items
Plans for next phase
- As a team, where do you want to be in three weeks at your next demo 'with your customer'?
- As an individual on the team, what are you doing to help your team achieve these goals? (Use the individual 3-week plan template for this)