数学偏微分控制下的精量播种机系统优化分析  

Optimization Analysis of the Precision Planter System Under the Mathematical Partial Differential Control

作　　者：褚丽娜[1] Zhu Lina(Chongqing Creation Vocational College,Chongqing 402160,China)

机构地区：[1]重庆科创职业学院,重庆402160

出　　处：《农机化研究》2024年第6期205-209,共5页Journal of Agricultural Mechanization Research

基　　金：重庆市教育科学研究院项目(2021-GX-184)。

摘　　要：为进一步提升我国精量播种机的综合作业效率,提出以数学偏微分方程控制理念为切入点的方法,针对其作业系统展开性能优化研究。通过科学搭建用于实现精准播种的数学偏微分控制模型,以排种、播种、状态监测为主程序设计软件控制架构,以系统主控装置、导种部件、开沟装置为主优化硬件执行结构,形成完整合理的偏微分控制精量播种机。试验结果表明:数学偏微分方程控制下的精量播种机各项评定参数得到显著提升,播种精度与系统稳定度分别提高了7.95%和6.90%,种子破损率可控制在0.50%以下,整机作业效率提升至94.73%,作业效果良好。研究结果将数学控制模型思维与系统设计思维相结合,具有较好的推广应用前景。In order to further improve the comprehensive operation efficiency of the precision planter in China,the concept of mathematical partial differential equation control was proposed as the starting point,and the performance optimization research of its operation system was carried.By scientifically building the mathematical partial differential control model for the accurate sowing,designing the software control architecture based on the seed metering,the sowing and condition monitoring,optimizing the hardware execution structure based on the system main control device,seed guide components and the ditching device,a complete and reasonable partial differential control precision planter was formed for the operation test.The results showed that the evaluation parameters of the precision planter were significantly improved before and after the application of mathematical partial differential equation control,in which the sowing accuracy and system stability were relatively improved by 7.95%and 6.90%respectively,the seed damage rate could be controlled below 0.50%,and the operation efficiency of the whole machine could be improved to 94.73%.The operation effect of partial differential control was good.The improvement had combined the mathematical control model thinking with the system design thinking,which would be a strong prospect of the popularization and application.

关 键 词：精量播种机 偏微分方程 优化分析 播种精度 种子破损率 

分 类 号：S223.26[农业科学—农业机械化工程]