Design and Experimental Study of Weed Control System for Mountain Fruit Orchards Based on Beidou Navigation
In response to the complex operating environment in hilly and mountainous orchards,which leads to low autonomy and stability in orchard weed removal machines,this study developed a control system for orchard weed removal machines based on Beidou navigation.The system combines multi-sensor data fusion and remote control marking technology to precisely mark the boundaries and obstacles of weed removal operations in orchards.It uses Beidou differential positioning technology to accurately determine the position of the weed removal machine,achieving precise positioning.The weed removal machine uses a tracked conforming chassis as its walking mechanism and is powered by an extended range hybrid power system to ensure excellent mobility and long-term operation.The field test results show that the weed removal robot has a positioning accuracy of ≤96 mm,a static baseline measurement horizontal accuracy of ≤65 mm,and a vertical accuracy of≤53 mm at a travel speed of0~6 km/h or an operation efficiency of2~4 acres/hour.The maximum climbing angle is 30°.These results indicate that the control system proposed in this study can meet the precision requirements for autonomous oper-ation of orchard weed removal machines.
Hilly and ountainous orchardsBeidou navigationAutonomous operationWeed removal machine