基于改进型PID的恒温恒湿养殖大棚控制系统优化设计  

Optimum Design of Control System for Constant Temperature and Humidity Aquaculture Greenhouse Based on Improved PID

作　　者：刘娟[1] 胡徐胜[2] LIU Juan;HU Xu-sheng(Ma′anshan Technical College,Ma′anshan,243000,Anhui;HohaiUniversity,Wentian College,Ma′anshan,243031,Anhui)

机构地区：[1]马鞍山职业技术学院,安徽马鞍山243000 [2]河海大学文天学院,安徽马鞍山243031

出　　处：《蚌埠学院学报》2019年第5期59-61,共3页Journal of Bengbu University

基　　金：河海大学文天学院校级科研项目(WT18024)

摘　　要：恒温恒湿养殖大棚控制系统以MKL46Z256VLL4单片机为控制核心,采用半导体制冷片对系统制冷和制热,用加湿器和抽风机对系统加湿和除湿,再用DS18B20和SHT11采集系统温度和湿度,然后反馈给单片机,单片机再通过继电器调节半导体制冷片的电流方向和抽风机对系统温度和湿度进行闭环调节,以实现控制要求。实验数据表明,控制系统各项控制指标都比较理想。The control system of constant temperature and humidity aquaculture greenhouse took MKL46Z256VLL4 as the control core.It used semiconductor refrigeration chip to refrigerate and heat the system,humidifiers and exhaust fans to humidify and dehumidify the system.It used DS18B20 and SHT11 to collect temperature and humidity of the system,and then feeds back to the MCU.The MCU adjusted the current direction of the semiconductor refrigeration chip and the temperature of the system through relays and exhaust fans.Degree and humidity were closed-loop regulated to meet control requirements.The experimental data showed that the control indexes of the control system are ideal.

关 键 词：单片机 半导体制冷片 加湿器 恒温恒湿 PID算法 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]