温室CO2气肥增施控制器的设计

doi:10.19640/j.cnki.jtau.2021.02.014

Journal of Tianjin Agricultural University ›› 2021, Vol. 28 ›› Issue (2): 67-71.doi: 10.19640/j.cnki.jtau.2021.02.014

• Researches and Scientific Notes • Previous Articles Next Articles

Design of carbon dioxide gas fertilize control system for greenhouse

Yu Jia^1,2, Yang Yanrong^1,*, Zhao Hui¹, Shan Huiyong¹, Guo Junwang¹, Wei Yong¹

1. College of Engineering and Technology, Tianjin Agricultural University, Tianjin 300392, China;
2. Tianjin Longchuan Cleanroom Operations Management Co. Ltd., Tianjin 300384, China

Received:2020-10-09 Online:2021-06-30 Published:2021-07-26

Abstract

Abstract: In order to realize the precise control of carbon dioxide gas fertilizer in the greenhouse, a carbon dioxide gas fertilizer application control system was designed, which was based on the open source system Arduino Mega 2560. The system selects MH-Z14, BH1750, SHT10, DS18B20 and other sensors to collect environmental parameters such as carbon dioxide concentration, light intensity, air temperature and humidity, soil temperature, etc., uses 2G capacity SD card to achieve mass storage of test data, LCD12864 and 4x4 keypads to achieve human machine interaction, through the remote control relay output to control the gas fertilizer generator. The fuzzy control algorithm was adopted to control the working hours of the gas fertilizer generator according to the present parameters to realize the control of the greenhouse gas fertilizer environment. The designed controller has the functions of data acquisition, data storage, parameter setting, automatic alarm, extreme data query in 24 hours, and gas fertilizer generator control. The gas fertilizer control mode includes three modes: manual setting of reaction time, manual setting of target concentration automatic tracking and intelligent selection of target concentration automatic tracking. The actual test of the electric heating gas fertilizer generator made by the project group shows that the air fertilizer application controller can realize the designed function.

Key words: greenhouse, carbon dioxide gas fertilizer, fuzzy control, Arduino Mega 2560

CLC Number:

TP273.4

Yu Jia, Yang Yanrong, Zhao Hui, Shan Huiyong, Guo Junwang, Wei Yong. Design of carbon dioxide gas fertilize control system for greenhouse[J]. Journal of Tianjin Agricultural University, 2021, 28(2): 67-71.

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Design of carbon dioxide gas fertilize control system for greenhouse

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