2018 Volume 80 Issue 4 Pages 235-242
We configured a guidance system on a sprayer using a low-cost GNSS (Global Navigation Satellite System) receiver and a tablet computer onto which guidance software had been installed. Assuming herbicide application after rice seeding, we evaluated the driving accuracy when non-skilled and skilled operators drove a sprayer, using a GNSS guidance system, employing targets in the field or relying on visual inspection. Using targets gave the highest precision. When the skilled and non-skilled operators drove the sprayer with the guidance system using a single frequency RTKGNSS receiver, RMS of lateral deviation from desired path were 0.26 m and 0.27 m. Use of the GNSS guidance system raised non-skilled operators to a level comparable to that of skilled operators.
