I have been looking for a good application for the new 3.5/3.6 that I got from kickstarter. Here is my plan ..
I want to make a precision heading indicator for a farming robot to replace the unreliable IMU+compass unit. I have two RTK GPS units capable of about 8mm positioning accuracy. I plan to mount them about 1 m apart on the longitudinal axis of the vehicle and use the 3.6 to compute the heading from the two GPS's on serial ports. The GPS's update at 10Hz and I think the 3.6 should be able to keep up with this rate. Then I will have the 3.6 spit out modified GPS sentences with the computed precision heading instead of the GPS heading. The autopilot can then use this to navigate. The reason is that the vehicle is very slow moving (1m/s) and the GPS heading alone is useless. The compass is also unreliable due to the large metal mass, EMI from the gas engine, and excessive vibration.
Any comments and suggestions much appreciated. Much easier to change course before coding
I want to make a precision heading indicator for a farming robot to replace the unreliable IMU+compass unit. I have two RTK GPS units capable of about 8mm positioning accuracy. I plan to mount them about 1 m apart on the longitudinal axis of the vehicle and use the 3.6 to compute the heading from the two GPS's on serial ports. The GPS's update at 10Hz and I think the 3.6 should be able to keep up with this rate. Then I will have the 3.6 spit out modified GPS sentences with the computed precision heading instead of the GPS heading. The autopilot can then use this to navigate. The reason is that the vehicle is very slow moving (1m/s) and the GPS heading alone is useless. The compass is also unreliable due to the large metal mass, EMI from the gas engine, and excessive vibration.
Any comments and suggestions much appreciated. Much easier to change course before coding