Team Members: Isabel, Daniel, Carley
Problem 1: Start / Finish Line (Hardware Level 1 | Software Level 4)
The Olympic committee would like your team to invent a control system for use with track and field running events. They want this device to automatically record the time and beep when the first runner crosses the start / finish line.
[INSERT IMAGE OF FINAL PROGRAM SKETCH]
CONCLUSION QUESTIONS
1. What was the most difficult part of the problem?
The most difficult part of the problem was wiring the switches to coincide perfectly and properly with the program already set in place - the mix up and the innumerable pieces of wire were really hard to operate around as well, and figuring out and keeping track of the inputs and outputs made things even more difficult. We also had to change the values manually because the sun was affected the reading from the photocells, and the changes between a couple of minutes were significant enough the change the program as a whole and cause it to function badly.
2. List and describe two features that were not part of the design problem that could be added to improve your design.
Better sensors would have been nice - perhaps color sensors pre-programmed to sense the colors of the contestants in the Olympics to differentiate and provide proper statistics for the record. When we went to record the time on the program, it would have also been more convenient to have it continue going, but stop as each person crossed the line. However, given the time limit, such a feat could not be achieved. Sheilding the photocells from the sun somehow would have been good since we had to manually change the values based on readings, and if the runners take too long, then we would have to modify it just before they reach the finish line. That, or we could set the program to automatically change the values based upon the readings taken from the sun's light.
Problem 2: Soccer Goal Light (Hardware Level 2 | Software Level 3)
Your team has been asked to design a control system for teh local soccer field that can detect when the ball has entered the goal. A light must blink for 10 seconds after a goal is scored. Remember, the goalie and others will also be crossing the goal frequently. You may need to modify the ball so that your device can differentiate between the soccer ball and other objects.
[INSERT IMAGE OF TWO POTENTIAL PHYSICAL SKETCHES]
[INSERT IMAGE OF TWO POTENTIAL PROGRAM SKETCHES]
[INSERT IMAGE OF FINAL PHYSICAL SKETCH]
[INSERT IMAGE OF FINAL PROGRAM SKETCH]
CONCLUSION QUESTIONS
1. What was the most difficult part of the problem?
The most difficult part of the problem was getting the magnetic piece worked out correctly. Plus, it seemed a little unrealistic to use a high powered magnet because of safety issues, but that was the decision, and we stuck with it to get to the end.
2. List and describe two features that were not part of the design problem that could be added to improve your design.
Different and more advanced sensors like the ultrasonic sensor could have been utilized to measure distances and get more specific readings such as rate of travel and size (good for distinguishing between player and ball). The pieces we used could have been smaller and easier to distinguish from a square with an empty space in the middle to an actual goal in a soccer game. The magnet we used was unrealistic for the situation at hand, and there could have been better solutions.
Problem 1: Start / Finish Line (Hardware Level 1 | Software Level 4)
The Olympic committee would like your team to invent a control system for use with track and field running events. They want this device to automatically record the time and beep when the first runner crosses the start / finish line.
 |
| FINAL PHYSICAL SOLUTION The final structural design for the timer at the Olympics. Includes the two photo- cells, two lamps, ten wire connections and wires, one interface, one power supply, one USB cord, eleven 30 mm blocks, and nine 15 mm blocks, and one buzzer. The track is symbolized as being the square and the space for people to run between the photo-cells and lamps to set off the buzzer for the run. |
[INSERT IMAGE OF TWO POTENTIAL PHYSICAL SKETCHES]
[INSERT IMAGE OF TWO POTENTIAL PROGRAM SKETCHES]
[INSERT IMAGE OF FINAL PHYSICAL SKETCH][INSERT IMAGE OF FINAL PROGRAM SKETCH]
) |
| FINAL PROGRAM SOLUTION The final program design for the functions of the physical solution shown above. Included are loops, start, end, variables, motor outputs (modified), photoresistor decision blocks, and analog blocks. (NOTE: we had to modify the values as the photocell was also affected by the sunlight values, which change as the day goes on. |
1. What was the most difficult part of the problem?
The most difficult part of the problem was wiring the switches to coincide perfectly and properly with the program already set in place - the mix up and the innumerable pieces of wire were really hard to operate around as well, and figuring out and keeping track of the inputs and outputs made things even more difficult. We also had to change the values manually because the sun was affected the reading from the photocells, and the changes between a couple of minutes were significant enough the change the program as a whole and cause it to function badly.
2. List and describe two features that were not part of the design problem that could be added to improve your design.
Better sensors would have been nice - perhaps color sensors pre-programmed to sense the colors of the contestants in the Olympics to differentiate and provide proper statistics for the record. When we went to record the time on the program, it would have also been more convenient to have it continue going, but stop as each person crossed the line. However, given the time limit, such a feat could not be achieved. Sheilding the photocells from the sun somehow would have been good since we had to manually change the values based on readings, and if the runners take too long, then we would have to modify it just before they reach the finish line. That, or we could set the program to automatically change the values based upon the readings taken from the sun's light.
Problem 2: Soccer Goal Light (Hardware Level 2 | Software Level 3)
Your team has been asked to design a control system for teh local soccer field that can detect when the ball has entered the goal. A light must blink for 10 seconds after a goal is scored. Remember, the goalie and others will also be crossing the goal frequently. You may need to modify the ball so that your device can differentiate between the soccer ball and other objects.
[INSERT IMAGE OF TWO POTENTIAL PHYSICAL SKETCHES]
[INSERT IMAGE OF TWO POTENTIAL PROGRAM SKETCHES]
[INSERT IMAGE OF FINAL PHYSICAL SKETCH]
[INSERT IMAGE OF FINAL PROGRAM SKETCH]
CONCLUSION QUESTIONS
1. What was the most difficult part of the problem?
The most difficult part of the problem was getting the magnetic piece worked out correctly. Plus, it seemed a little unrealistic to use a high powered magnet because of safety issues, but that was the decision, and we stuck with it to get to the end.
2. List and describe two features that were not part of the design problem that could be added to improve your design.
Different and more advanced sensors like the ultrasonic sensor could have been utilized to measure distances and get more specific readings such as rate of travel and size (good for distinguishing between player and ball). The pieces we used could have been smaller and easier to distinguish from a square with an empty space in the middle to an actual goal in a soccer game. The magnet we used was unrealistic for the situation at hand, and there could have been better solutions.
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