January 24th Lab Data:
Above are the graphs of data obtained from the January 24th AEV lab. This data was obtained while running the following program:
{
celerate(4,0,25,3);
motorSpeed(4,25);
goFor(1);
motorSpeed(4,20);
goFor(2);
reverse(4);
motorSpeed(4,25);
goFor(2);
brake(4);
}
Both sets of data were obtained simultaneously, and represent the same time interval of testing. The graphs show an inverse relationship between distance and power; as distance decreased, power increased and vice versa.
Because the AEV is to be engineered as efficiently as possible, this data will be helpful in establishing a baseline comparison to future tests, where the ultimate goal will be to minimize power usage while maximizing displacement.
February 6th Reflectance Sensors:
The reflectance sensors were attached to the wheel as shown in the image below:
The reflectance sensors, when used in tandem, can accurately gauge the number of rotations done by the wheels. This is essential to the MCR because it allows the Arduino board to determine the distance traversed by the AEV and through that, the AEV’s relative position. This allows for precisely controlled movements and sequences of movements that will tie into the final program.
Below is the code used to test the reflectance sensors:
{
celerate (4,0,25,3)
motorSpeed(4,25) goFor(1)
motorSpeed(4,20) goFor(2)
reverse(4)
motorSpeed(4,25) goFor(2)
brake(4)
}