What is a smart greenhouseThe composition of a smart greenhouse
What is a Smart Greenhouse
Smart greenhouse is a general term (not a professional name) for Dutch Venlo-style greenhouses and other greenhouses with intelligent control systems. Generally refers to the intelligent greenhouse whose main structure is Dutch Venlo-style greenhouse (double slope, herringbone ridge) as the note, covered with glass or PC board insulation, equipped with rich facilities such as sunshade system, cooling system, forced ventilation system, natural ventilation system, Heating system, lighting system, intelligent control system, sprinkler irrigation system, Miaosong system and other advanced facilities and equipment have greatly improved the efficiency of production management, especially the addition of the intelligent control system of the Internet of Things, making the management efficiency of the 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 add an IoT intelligent control system, strictly speaking, it is just an ordinary greenhouse with a "smart greenhouse" structure.
Composition of smart greenhouse
1. Greenhouse
There are many types of greenhouses, and the degree of intelligent control that can be realized is also different due to different structural forms. The greenhouse that is easiest to realize the intelligent control of the Internet of Things is a multi-span greenhouse, which can provide a comfortable and controllable growth environment for crops.
2. Information display
The information display of the IoT smart greenhouse is mainly divided into several parts: (1) The information display area composed of LCD screens inside the greenhouse. (2) PC terminal information display. (3) Remote real-time monitoring on the mobile phone. These three display methods all collect data through sensors and cameras in the greenhouse to present on-site data and scenes, which is 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 according to different designs. The intelligent control system of the Internet of Things 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 greenhouse environment.
4. Controller
The controller of the Internet of Things smart greenhouse is mainly composed of heating and ventilation, irrigation, cooling and other equipment and servers. When the system finds that the collected environmental data exceeds the critical value, the controller automatically starts the environmental control equipment to control the environment in the greenhouse. Carry out heating, watering, fertilization, ventilation, cooling, etc., to achieve automatic intelligent and precise control.
5. Ruler
The main system of the IoT smart greenhouse is installed in the server, which is responsible for summarizing, comparing and controlling the collected environmental data.
Intelligent Greenhouse Control System
The greenhouse intelligent control system was proposed when the application of the Internet of Things is becoming more and more widespread, especially the emergence of the Top Agricultural Internet of Things. Based on this, a set of control and management systems for greenhouse irrigation and environmental monitoring has been developed.
The system realizes the monitoring and control of greenhouse irrigation equipment, and the uninterrupted collection, arrangement, statistics and drawing of environmental data. It has an interface style consistent with WINDOWS, perfect memory management and friendly and intuitive operation methods. The current status of each greenhouse can be monitored, including information collection of air temperature, air humidity, illuminance, carbon dioxide, soil temperature, soil humidity, electrical conductivity and other parameters, 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 and water pump fertilization system, etc., through air temperature, air humidity, light, carbon dioxide, etc. Parameters to automatically control the target value of the sunroof, side window, inner sunshade, outer sunshade, fan, wet curtain, outward-turning window, heating equipment, humidification equipment, carbon dioxide generator, etc., and the opening/closing time of the equipment, etc.
Smart Greenhouse Cost Analysis
The cost composition of smart greenhouses is mainly divided into four major items: main frame, covering materials, system equipment, and installation costs. 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 specification of the condyle, the higher the cost of the main frame.
Covering materials generally refer to the insulation materials on the facade and top of the greenhouse. These materials firstly require good light transmittance, and secondly have good thermal insulation effects. Smart greenhouses generally use PC boards or glass as insulation covering materials, and the total price of covering materials is about 80-100 per square meter. Among them, PC boards generally use two types of 8mm and 10mm, and the glass can be single-layer tempered or double-layer insulating glass, and the 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.
