农业机械学报2024，Vol.55Issue(6)：60-67,79,9.DOI:10.6041/j.issn.1000-1298.2024.06.006
水稻全田块无人收获作业自动打点系统设计与试验
Design and Test of Automatic Dotting System for Whole-field Unmanned Rice Harvesting Operation
摘要
Abstract
Unmanned operation of grain harvesting machinery can address the issue of labour shortage effectively during the harvesting season.The whole-field automatic navigation is a significant indicator of intelligent unmanned harvester.To address the issue of automatic dotting for unmanned rice harvesting,the automatic navigation of the outermost circle of the rice field was realized based on cut boundary fitting and headland region detection.The trajectory of rice harvester was recorded by using Beidou real-time kinematic(RTK)while working in the outermost circle of the paddy field,which enabled automatic dotting for the remaining operation region(ROR).A dynamic region of interest was constructed by employing the priori morphology knowledge of the target area,which not only improved the robustness of cut boundary fitting but also reduced its computational complexity.Once the rice harvester entered the headland region,the uncut boundary in the front of the machinery was extracted and the intersection point between two uncut boundary lines was fixed.Finally,the position of the vertex corresponding to the ROR was calculated based on the antenna position and operating width.The proposed method was verified based on an automated trolley,and results indicated that the average straight line tracking error was 4.1 cm,and the maximum tracking error was 6.3 cm at speed of 0.8 m/s.The processing time for single image was less than 50 ms.The average error of automatic dotting was 3.5 cm,and it can realize automatic dotting of rice field of right-angled trapezoid.It can be concluded that the designed automatic dotting system satisfied the needing of whole-field unmanned operation of rice harvester.关键词
水稻全田块自动导航/无人收获作业/自动打点/作物边界提取Key words
rice whole-field automatic navigation/unmanned harvesting operations/automatic dotting/crop boundary extraction分类
农业科技引用本文复制引用
崔冰波,杜卓文,韩逸,朱耀辉,魏新华..水稻全田块无人收获作业自动打点系统设计与试验[J].农业机械学报,2024,55(6):60-67,79,9.基金项目
国家自然科学基金项目(32271999)、江苏省重点研发计划项目(BE2021313)和江苏高校优势学科建设工程(四期)项目 （32271999）
