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改进遗传算法的果园割草机作业路径规划

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为提高果园割草机的工作效率,解决割草机路径规划问题,提出一种改进遗传算法(improved genetic algo-rithm,IGA).通过对不同作业场景的分析,将割草机的路径规划问题转化为对作业行的调度排序问题,根据割草机的作业环境建立数学模型.在GA(genetic algorithm)的基础上,采用动态线性标定方式,放大适应度值之间的差异,设计适应度函数并通过对算子优化,在保证遗传算法搜索能力的同时,提高算法的性能和收敛速度.设计不同参数的15种果园进行仿真试验,选择2块标准化果园进行田间试验,验证改进遗传算法的性能.结果表明,改进后的遗传算法具有更好的寻优性能和收敛速度,能高效地解决果园中割草机的路径规划问题.
Improved genetic algorithm for orchard lawn mower operation path planning
To improve the efficiency of orchard mowing machines and address the mowing machines' path planning problem,this paper proposes a method called IGA (Improved Genetic Algorithm).First,through an analysis of different operational scenarios,the path planning problem of the mowing machine is transformed into a scheduling and ordering problem for operations,and a mathematical model is built based on the mowing machine's operational environment.Second,based on the GA (Genetic Algorithm),a dynamic linear calibration method is used to amplify the differences between fitness values,and a fitness function is designed.Through optimization of the operators,the algorithm's performance and convergence speed are improved while ensuring the search capability of the genetic algorithm.Finally,15 different orchards with different parameters are simulated,and two standardized orchards are selected for field experiments to validate the performance of the improved genetic algorithm.Our results show the improved genetic algorithm performs better in optimization and convergence speed,and efficiently solves the path planning problem of mowing machines in orchards.

orchard lawn mowerpath planningimproved genetic algorithmdynamic linear calibration

王潇洒、刘丽星、杨欣、谢金燕、王旭、武家麟

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河北农业大学 机电工程学院,河北 保定 071000

果园割草机 路径规划 改进遗传算法 动态线性标定

国家财政部和农业农村部国家现代农业产业技术体系建设专项河北省现代农业产业技术体系苹果创新团队项目

CARS-27HBCT2023120202

2024

重庆理工大学学报
重庆理工大学

重庆理工大学学报

CSTPCD北大核心
影响因子:0.567
ISSN:1674-8425
年,卷(期):2024.38(11)
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