What is the composition of intelligent greenhouse intelligent greenhouse
Smart greenhouse is a general term (not a professional name) for the Dutch Venlo greenhouse and other greenhouses with intelligent control systems. -Generally refers to the intelligent greenhouse whose main structure is mainly Dutch Venlo greenhouse (double slope, herringbone ridge), covered with glass or PC board for thermal insulation, and equipped with rich sunshade system, cooling system, forced ventilation system, natural ventilation system , heating system, supplementary light system, intelligent control system, sprinkler irrigation system, seedbed system and other advanced facilities and equipment have greatly improved the efficiency of production management, especially the addition of the Internet of Things intelligent control system, which makes the management efficiency of intelligent greenhouse more efficient It is more accurate and reduces the technical difficulty and threshold of greenhouse management. It should be pointed out that if a "smart greenhouse" does not have an IoT intelligent control system, strictly speaking, it is just an ordinary greenhouse with an intelligent greenhouse structure.
The composition of intelligent greenhouse
1. Greenhouse
There are many types of greenhouses, and the degree of intelligent control that can be achieved is also different due to different structural forms. The easiest greenhouse to realize intelligent control of the Internet of Things is the multi-span greenhouse, which can provide a comfortable and controllable growth environment for crops.
2. Information display
The information display of the Internet of Things smart greenhouse is mainly divided into several parts: (1) The information display area composed of the LCD screen inside the greenhouse. (2) PC computer terminal information display. (3) Remote real-time monitoring on the mobile phone terminal. These three display methods all collect data through sensors and cameras in the greenhouse, and present on-site data and scenes, which are convenient for management and operation.
3. Sensor
The sensors of the IoT smart greenhouse mainly include: air temperature and humidity sensors, soil temperature and humidity sensors, soil PH sensors, light sensors, cameras, etc. Sensors are also divided into wired and wireless types according to different designs. The IoT intelligent control system collects data through sensors, such as air temperature and humidity, soil temperature and humidity, soil PH value, light intensity, carbon dioxide concentration, etc., to realize real-time monitoring and intelligent control of the environment in the greenhouse.
4. Controller
The controller of the IoT smart greenhouse should be composed of heating, ventilation, irrigation, cooling and other equipment as well as servers. When the system finds that the collected environmental data exceeds the critical value, the controller will automatically start the environmental control equipment to monitor the inside of the greenhouse. The environment is heated, watered, fertilized, ventilated, cooled, etc., to achieve automatic intelligent and precise control.
5. Main system
The main system of the IoT smart greenhouse is installed in the server, which is responsible for summarizing, displaying, comparing and controlling the collected environmental data.
Intelligent Greenhouse Control System
Greenhouse intelligent control system is put forward when the Internet of Things is widely used, especially the emergence of Top Agricultural Internet of Things. Based on this, a control and management system for greenhouse irrigation environment monitoring is developed.
The system realizes the monitoring, control, environmental data collection, sorting, statistics and mapping of greenhouse irrigation equipment. It has a consistent interface style with WINDOWS, perfect memory management and friendly and intuitive operation. The current status of each greenhouse can be monitored, including information collection of parameters such as air temperature, air humidity, illuminance, carbon dioxide, soil temperature, soil moisture, electrical conductivity, etc., as well as the switching status of each device.
The operating parameters of each greenhouse can be set, such as soil humidity, soil temperature, conductivity, time and other parameters in the greenhouse to automatically control the target value of the solenoid valve, water pump, fertilization system, etc., through the air temperature, air humidity, light, carbon dioxide, and other parameters to automatically control the target values of skylights, side windows, internal sunshades, external sunshades, fans, wet curtains, everted windows, heating equipment, humidification equipment, carbon dioxide generators, etc. and the opening/closing time of the equipment, etc.
Cost Analysis of Smart Greenhouse
The cost of intelligent greenhouse is mainly divided into four major items: main frame, covering material, system equipment, and installation fee. Among them, the main frame is based on a greenhouse with a length of 100*50 meters and a height of 6 meters. The cost of the main frame is about 100-120 yuan per square meter. The higher the frame size, the higher the cost of the main frame.
Covering materials generally refer to the thermal insulation materials on the façade and top of the greenhouse. These materials are required to have good light transmittance first, and secondly to have good thermal insulation effect. Smart greenhouses generally use PC boards or glass as insulation covering materials, and the total cost of covering materials is about 80-100 per square meter. Among them, PC boards generally use 8mm and 10mm. The glass can be single-layer tempered or double-layer insulating glass. Double-layer insulating glass has better thermal insulation effect.
To sum up, the average cost of smart greenhouses is between 370,450 yuan per square meter, and the more system equipment, the higher the cost.
