关键词: 家庭植物工厂, LED光源, 气雾栽培, 环境控制, 物联网

Abstract: In order to meet the family planting needs of urban residents, an aerosol cultivation family plant factory system was developed. The LED controller was selected as the light source and the manual control system for the environment and was used as the integrated control system for the nutrient solution. The PLC software, touch screen software, and mobile terminal application were designed and developed respectively to realize the monitoring and implementation of equipment control of equipment operation status, environmental factors, nutrient solution factors, and other information of family plant factory. The overall test results showed that the ambient temperature control deviation was less than 0.3 ℃, and the average response speed was more than 1.24 ℃/h. The deviation of CO2 concentration regulation was less than 0.002 4%, and the average response speed was greater than 0.005 2%/h. The average response speed of the nutrient solution temperature control was greater than 1.43 ℃/h, and the control deviation was less than 0.4 ℃. The performance of the system met the design requirements, had high reliability, and could meet the needs of practical application.

Key words: aerosol cultivation family plant factory, LED light source, aerosol culture, environmental control, Internet of Things