农业机械学报2024，Vol.55Issue(9)：442-449,8.DOI:10.6041/j.issn.1000-1298.2024.09.039
基于物联网的热泵式低温循环粮食烘干机监控系统研究
Design of Monitoring System for Heat Pump Grain Low Temperature Circulating Dryer Based on Internet of Things
摘要
Abstract
Aiming at the problems of backward monitoring means and low information level of heat pump low-temperature circulating food dryer,a monitor and control system of heat pump low-temperature circulating food dryer based on the Internet of things was designed and developed.The architecture design of the system used perception layer,transmission layer and application layer,and the system took programmable logic controller(PLC)and HMI touch screen as the core to design and develop a control system to realize real-time monitoring,graphical display,safety protection and automatic control of dryers and heat pumps.The server system framework was developed by Linux CentOS system.The data connected by EG8000mini module was sent to AP base station and stored in database.Users can remotely monitor and control the heat pump low temperature circulating food dryer through computer or mobile APP.The experimental results showed that the communication success rate of the system was higher than 98％,and the average absolute error of real-time detection of ambient temperature,hot air temperature,hot air humidity and hot air wind speed was 0.3℃,0.26℃,1.2％and 0.47 m/s,respectively,which can meet the remote monitor and control requirements of heat pump type low temperature circulation dryer.关键词
粮食烘干机/监控系统/物联网/实时监控Key words
grain dryer/monitoring system/Internet of things/real-time monitoring分类
农业工程引用本文复制引用
左毅,刘浩鲁,陈子轩,张士航,王守元,陈坤杰..基于物联网的热泵式低温循环粮食烘干机监控系统研究[J].农业机械学报,2024,55(9):442-449,8.基金项目
南京市现代农机装备与技术创新示范项目(NJ[2022]06)和江苏省科技计划专项资金项目(BE2021305) （NJ[2022]06）
