In this graph of voltage over time for our prototype, the voltage drops from 9.05 volts to 8.45 volts for a very short moment (less than 0.2 seconds) due to starting the program. However, it continues to rise until it consistently meets the requirement of our group’s prototype. Therefore, this test received full credit on the scorecard because it stayed within the desired range.
This second graph shows the distance over time of our prototype, which was utilized in the speed and stopping precision test. As seen in the data, the delivery cart travels around 1.3 meters in just about 4 seconds before stopping on the track. 1.3 meters is equivalent to 51.18 inches, so the overall speed of the prototype is 51.18 inches / 4 seconds = 12.8 inches per second. Additionally, this converts to 0.73 mph, which fits our prototype requirement of the speed being larger than 0.55 mph. This allows the cart to run efficiently and relatively quickly.
Furthermore, this screenshot shows the peak decibel level of the prototype running at its fastest speed. According to the verification plan, the prototype must not exceed a specific decibel level to meet its requirements. The first screenshot shows that it reaches a maximum of 70 decibels during testing, which is well below the requirement of less than 120 decibels. Therefore, this test gained all possible points from the scorecard.
The second screenshot shows the results of the stability test. This was taken as the prototype was travelling on the track. The requirement is that it must be less than 15 degrees while running, and during this run, it fluctuates around 8 degrees. It never goes higher than 9 degrees, so it meets the prototype requirement.