基于电子果实技术的核桃多点同步振动参数监测与脱落条件研究  

Monitoring of Multi-point Synchronous Vibration Parameters and Dropping Conditions of Walnuts Based on Electronic Fruit Technology

作　　者：贾娜[1] 薄嘉成 张航宇 刘九庆[1] JIA Na;BO Jiacheng;ZHANG Hangyu;LIU Jiuqing(School of Mechanical and Electrical Engineering,Northeast Forestry University,Harbin 150040,China)

机构地区：[1]东北林业大学机电工程学院,哈尔滨150040

出　　处：《农业机械学报》2024年第10期215-222,共8页Transactions of the Chinese Society for Agricultural Machinery

基　　金：国家重点研发计划项目(2022YFD2202105-1)。

摘　　要：设计了一款面向核桃的电子果实系统,该系统整合了多点振动参数采集及模拟脱落功能,用于研究采摘过程中的动力学行为及脱落条件。通过建立核桃与树体的动力学模型并确定核桃脱落判定条件,研制了设备及其配套的室内实验平台。通过室内实验验证了电子果实系统的功能可靠性。在户外实地采摘实验中,通过电子果实系统多点同步采集果实振动数据并分析,结果表明,核桃在振动采摘过程中主要做法向振动,核桃所受法向力是导致其脱落的主要因素。整合了多点同步测量及模拟脱落功能的电子果实系统可为研究核桃的脱落条件提供有效的数据支撑。An electronic fruit system specifically designed for walnuts,integrating multi-point vibration parameter collection with simulated fruit abscission functions was developed to investigate the conditions under which walnuts detached from the tree.The development process involved creating a dynamic model that described the interaction between walnuts and the tree,establishing criteria for walnut abscission,and designing a device along with an indoor experimental platform to test the system’s capabilities.The reliability and functionality of the system were confirmed through indoor experiments,which demonstrated its effectiveness in accurately collecting and analyzing vibration data from walnuts.Subsequent outdoor field tests were conducted to evaluate the system’s performance in a real-world setting.During these tests,the electronic fruit system collected synchronized multi-point vibration data,providing insights into the dynamics of walnut detachment.The data analysis revealed that during vibration-assisted harvesting,walnuts predominantly experienced normal vibrations,with the normal force exerted on the walnuts being the primary factor leading to their detachment from the tree.The system’s integration of multi-point synchronous measurement and simulated abscission functionality offered significant advantages for studying walnut drop conditions.Moreover,this technology showed promise for application in automated harvesting of other crops,potentially revolutionizing agricultural practices by enhancing efficiency and effectiveness in crop management.By providing detailed and actionable data,the electronic fruit system not only advanced understanding of walnut abscission but also contributed to the broader goal of improving harvesting techniques and practices across various agricultural sectors,making it a valuable tool with extensive future applications in the industry.

关 键 词：电子果实系统 核桃采摘 脱落力 多点同步分析 

分 类 号：S237[农业科学—农业机械化工程]