基于自适应遗传算法的双料箱施肥系统设计及实验

Design and Experiment of Double Fertilizer Boxes System Based on Adaptive Genetic Algorithm

为了使有机肥和无机肥经同一机具施用,并做到精准施肥,提出了一种基于自适应遗传算法的双料箱施肥方法及相应系统。它主要由远程上位机、GPRS模块、GPS模块、STM32、电机驱动模块及排肥机构组成。在施肥过程中,安装在拖拉机轮轴上的霍尔传感器及驾驶室内的GPS模块将拖拉机驱动轮角速度和所处位置信息反馈到STM32中;STM32自动利用已设定函数决策开始控制施肥作业,同时排肥轴转速根据自适应遗传PID算法动态调整,达到稳态。结果表明:基于自适应遗传算法的双料箱施肥系统相比传统的控制算法,使系统迅速响应并于0.2s内达到稳态。

In order to make the organic fertilizer and inorganic fertilizer using the same device to work and achieve the effect of precise fertilization,this paper puts forward a double fertilization boxes system which based on adaptive genetic algorithm. It is mainly composed of the upper computer,GPRS module,GPS module,STM32,motor driver module and fertilizer machinery. In the process of fertilization,hall sensor installed on the tractor wheel axle and GPS module in the cab of tractor transmit the information of wheel angular velocity and geographical position to STM32. STM32 uses functional decision which inputted to it before to start fertilizing. At the same time the fertilization shaft ＇s speed achieves steady state by using adaptive genetic PID algorithm. In this paper,traditional control algorithm and adaptive genetic algorithm were compared and results show that adaptive genetic algorithm can make system to response more rapidly and reach steady state in 0. 2 seconds.