一种数学控制算法下农作物智能管理系统设计

Design of Crop Intelligent Management System Based onMathematical Control Algorithm

针对农作物大棚监管不力、调控难度大等问题,设计一种基于PID数学模型的智能管理系统。系统通过安装在大棚中的终端采集节点实时采集农作物的温湿度信息,并借助ZigBee无线通信网络,经路由器中继站、协调器管理站、UART串口传输给控制器终端,由控制终端的STM32微处理器依据PID算法模型,比较设定的最佳温湿度阈值与实际测量值之间的偏差,来调节温湿度调控单元,实现温湿度的精准控制,创造适合农作物生长的最佳环境。同时,从系统的总体架构着手,阐述了PID算法理论,分别详细设计了其软硬件,最后通过实验证明了系统的可用性和实用性。

In this paper,an intelligent management system based on PID mathematical model is designed to solve the problems of weak supervision and difficult control of crop greenhouses.The system collects the temperature and humidity information of crops in real time through the terminal acquisition node installed in the greenhouse.With the help of ZigBee wireless communication network,the information is transmitted to the controller terminal through the router relay station,coordinator management station and UART serial port.The STM32 microprocessor of the control terminal is based on the PID algorithm model.By comparing the deviation between the set optimal temperature and humidity threshold and the actual measured value,the temperature and humidity control unit can be adjusted to achieve the precise control of temperature and humidity and create the best environment suitable for crop growth.This paper starts from the overall structure of the system,describes the PID algorithm theory,respectively detailed design of its hardware and software,and finally through the experimental data to prove the availability and practicability of the system.