A rover RTK-GPS receiver (Trimble EZ Guide 500) with the
GPS antenna mounted on top of the tractor’s cabin (w3 m
above the soil surface).
- A user interface capable of displaying cross-track error
information and receiving user input, such as the desired
pass spacing and the location of the first guidance line.
- Path-planning algorithms capable of calculating cross-track
error relative to the desired guidance path.
- Vehicle steering actuators.
- Manual override sensors.
- Steering angle sensors.
- Controller calculating steering correction algorithms.
- Terrain compensation sensing (i.e. pitch, roll and yaw