Design and test of autonomous navigation system for high speed precision seeder
Smart agriculture is the mainstream trend of the development of modern agriculture.With the widespread application of agricultural machinery,agricultural machinery products are further transformed to automation and intelligence while technology upgrading.As the most important link of agricultural production,sowing was the most advanced level of intelligent operation equipment,which was an important reflection of the competitiveness of agricultural industry.It could effectively improve the agricultural planting efficiency,optimize the navigation road planning scheme,and guide the agricultural machinery to efficiently complete the operation,which has become the focus of research and application in recent years.To this end,an autonomous navigation system for high-speed precision planter based on Beidou satellite positioning and inertial sensor was designed.Data obtained from multiple sensors were integrated by Beidou satellite and optimized to build a three-dimensional global point cloud map,analyze and process the map,and realize path planning.The test results showed that the accuracy of the optimized map was obviously improved.When the average speed of the seeder was 3.5 m/s,the maximum deviation of the autonomous navigation line was not more than 8.2 cm,and the average absolute deviation was not more than 3.1 cm,which could meet the requirements of the autonomous navigation and positioning of the field seeder,with high accuracy and stability,and provides an effective technical means for the realization of intelligent agriculture.
NETL
NSTL
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