基于STM32的农业大棚环境监测系统设计

Design of Environmental Monitoring System for Agricultural Greenhouse Based on STM32

为进一步实现农业大棚的智能化管理,提出基于STM32嵌入式技术、虚拟仪器技术的大棚环境监测系统设计方案.系统选用STM32F103C8T6作为核心处理器,首先通过YL-69、SGP30等传感器模块实时采集大棚内土壤湿度、CO_(2)浓度、光照强度和空气温湿度等数据,经STM32分析处理后,依据当前环境参数,通过继电器控制风扇、抽水机等设备的工作状态,实现大棚内部环境的自动监测与调节等功能.上位机软件采用虚拟仪器语言LabVIEW开发完成,LabVIEW界面可实时显示当前环境数据、设备工作状态.测试结果表明,系统运行稳定可靠,总体准确率基本能维持在94.12%以上,可以有效监控农业大棚内部环境,节省人力成本.

In order to further realize the intelligent management of agricultural greenhouses;a design scheme of environmental monitoring system for greenhouses based on STM32 embedded technology and virtual instrument technology was proposed.The system uses STM32F103C8T6 as the core processor.First;the data of soil moisture;CO_(2)concentration;light intensity and air temperature and humidity in the greenhouse are collected in real time by YL-69;SGP30 and other sensor modules.After analysis and processing by STM32;the system further controls the working state of the fans;pumps and other equipment through relays according to the current environmental parameters;so as to realize the automatic monitoring and adjustment of the internal environment of the greenhouse.The upper computer software is developed by the virtual instrument language LabVIEW.LabVIEW interface can display the current environment data and the working state of the equipment in real time.The test results show that the system is stable and reliable;the accuracy of the system can be basically maintained above 94.12%;it can effectively monitor the internal environment of agricultural greenhouses and save labor cost.