Description of lab 03 and important take-aways:
After the team evaluated the criteria (see Table 1 and Table 2), it was decided that prototypes 1 and 5 would be developed because the scores were both high enough to achieve the mission. Prototype 1 had a Concept Score of 3.3 and Prototype 5 had a Concept Score of 3.45.
This lab has given the team the ability to not have bias in their critique of the AEV prototype designs. The use of finding the right price, weight, amount of drag, balance, and energy consumption is very important in finding the right design which the scoring sheet pointed out. Prototypes 1 and 5 scored the most efficiently and will be looked out as the main designs for the upcoming testing periods.
Table 1. Concept Screening
| Success Criteria | Reference | Prototype 2 | Prototype 3 | Prototype 4 | Prototype 5 |
| Weight | – | + | + | 0 | – |
| Price | + | – | + | – | – |
| Air drag | – | 0 | – | + | 0 |
| Balance | 0 | 0 | – | + | 0 |
| Energy Consumption | 0 | – | 0 | + | + |
| Braking Power | 0 | – | + | – | 0 |
| Cost | 0 | – | + | – | 0 |
| Sum +’s | 1 | 1 | 3 | 4 | 1 |
| Sum 0’s | 3 | 0 | 1 | 1 | 3 |
| Sum –’s | 2 | 3 | 2 | 2 | 2 |
| Net Score | -1 | -2 | 1 | 2 | -1 |
| Continue? | Combine | No | Yes | Yes | No |
Table 2. Concept Scoring Matrix
| A Reference | Prototype 2 | Prototype 3 | Prototype 4 | Prototype 5 | |||||||
| Success Criteria | Weight | Rating | Weighted Score | Rating | Weighted Score | Rating | Weighted Score | Rating | Weighted Score | Rating | Weighted Score |
| Weight | 30% | 3 | 0.9 | 4 | 1.2 | 3 | 0.9 | 2 | 0.6 | 4 | 1.2 |
| Price | 15% | 5 | 0.75 | 1 | 0.15 | 3 | 0.45 | 1 | 0.15 | 3 | 0.45 |
| Air Drag | 15% | 2 | 0.3 | 2 | 0.3 | 1 | 0.15 | 3 | 0.45 | 5 | 0.75 |
| Balance | 20% | 3 | 0.6 | 2 | 0.4 | 1 | 0.2 | 3 | 0.6 | 3 | 0.6 |
| Energy Consumption | 5% | 3 | 0.15 | 1 | 0.05 | 2 | 0.1 | 3 | 0.15 | 3 | 0.15 |
| Braking Power | 5% | 2 | 0.1 | 1 | 0.05 | 4 | 0.2 | 3 | 0.15 | 2 | 0.1 |
| Cost | 10% | 5 | 0.5 | 1 | 0.1 | 2 | 0.2 | 2 | 0.2 | 2 | 0.2 |
| Total Score | 3.3 | 2.25 | 2.2 | 2.3 | 3.45 | ||||||
| Continue? | Develop | No | No | No | Develop | ||||||
Arduino Code
reverse(4);
celerate(4,0,25,3);
goFor(1);
motorSpeed(4,20);
goFor(2);
reverse(4);
motorSpeed(4,20);
goFor(2);
brake(4);
