Research and Analysis on the Influence of Different Speed Measurement Methods on the Monitoring Accuracy of Seed Spacing

The accuracy and real-time performance of the speed measurement method were important factors influencing seeding spacing monitoring. In this study, three different methods (including GNSS (Global Navigation Satellite System) receiver measurement, radar encoder rotation speed) used to compare analyze monitoring results spacing. same system was calculate under methods. directly measured disc instead traditional measuring driving wheel. uniform-speed variable-speed field tests showed that have extremely high correlations, with a correlation coefficient R > 0.95. There small difference among methods, they all met needs operations. After comprehensively considering use cost installation complexity, it recommended monitor operation