When I try the GPS sensor on our club field, I get a reading of 87 degrees on the GPS sensor when the robot is actually 90 degrees. Are competition skills fields guaranteed to be set up correctly so that 90 shows as 90? I am confused on how to figure out the offset on a competion skills field if 90 is not 90
I mean they should be set up correctly. But it sounds that maybe an IMU (inertial) would be more accurate?
We use inertial for heading and GPS for pose, with AI for ring relative pose, works for us. But, the skill field should be closer then that, no guarantee but it should be closer.
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Generally, you can expect that everywhere for GPS sensors. Like others have said, I would use an IMU for your angle.
Our team had a similar issue and found that the GPS sensor was not alighned closely enough with the robot base. (Off a few degrees) They now check that the sensor is closely aligned (perpendicular)with the robot base(+/- 0.5 degrees). You can see the heading on the robot brain. Use can use a straightedge and a seam in the mat aiming toward 0 degees as the reference for your base…
Insuring that the robot drives accurately to the heading indicated on the sensor made a huge difference for us.
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