During the last class , we went back to work with Lego robots, but this time, our work consisted in something different.
This time we had to be able to calculate the margin of error of our manual measurements , against the computer itself did.
For this, we had to be measured with a ruler , the distance traveled by the robot , and comparing , taking into account the chosen power and speed thereof .
It was a fun experiment, and above all, it helped me realize how untrue that is a human measurement compared with the measurement by a computer system .
Here , I attach the data collected in the work session , and error rates .
In the first experiment , the power ( 75 ) and time ( 1 sec ) was maintained constant . And the measure taken at the beginning was 0.285 m .
From this information , the following error rates were obtained:
1 Run- 18.7%
V : 0.2369
D : 0.2369
R : 543
R2: 551
WT : 1,508
2 Run- 18.3%
V : 0.2373
D : 0.2373
R : 544
R2: 551
WT : 1,511
3 Run- 17.74%
V : 0.2369
D : 0.2369
R : 543
R2: 553
WT : 1.5083
After this first experiment, we were asked us to do the same, but this time changing the power, and the results obtained were as follows:
Run 1 – P (100) T (1 sec) Measured Distance (0.335 m)
V: 0.3368
D: 0.3368
R: 772
R2: 784
WT: 2,144
%: 0.53%
Run 2 – P (50) T (1 sec) Measured Distance (0.171 m)
V: 0.1509
D: 0.1509
R: 346
R2: 351
WT: 0.9611
%: 6.2%
Run 3 – P (127) T (1 sec) Measured Distance (0.356 m)
V: 0.3359
D: 0.3359
R: 770
R2: 782
WT: 2,138
%: 2.9%
Here you will find the meaning of acronyms
P: Power
D: Distance
R: Rotation
R2: Rotation 2
WT: Wheels Turn
T: Time