Intelligent greenhouse, the new development direction of modern agriculture

With the rapid development of facility horticulture, intelligent greenhouse (usually referred to as multi-block greenhouse or modern greenhouse) comes into being. It is the advanced type of facility agriculture. It has a comprehensive environmental control system, which can directly adjust indoor temperature, light, water, fertilizer, gas and many other factors.

What is a smart greenhouse

Intelligent greenhouse, also known as automatic greenhouse, is a high-tech "intelligent" greenhouse based on agricultural greenhouse environment equipped with computer controlled mobile skylight, shading system, insulation, wet curtain/fan cooling system, drip irrigation system or drip irrigation system, mobile seedbed and other automatic facilities. The control of intelligent greenhouse generally consists of three parts: signal acquisition system, central computer and control system.

"Control System" is important in intelligent greenhouse

The "central system" of intelligent greenhouse is the intelligent greenhouse monitoring system. It is composed of sensors, automatic control systems, communications, computer technology and expert systems. By preloading the appropriate environmental parameters required by the growth of various crops, it builds the intelligent soft and hard platform of the greenhouse, and realizes the automatic monitoring and control of the temperature, humidity, light, carbon dioxide, nutrient solution and other factors in the greenhouse.

Greenhouse temperature, humidity, light intensity and soil temperature and water content and other factors play a key role in greenhouse crop growth. Greenhouse automation control system is based on PLC as the core, using computer distributed network control structure for greenhouse.

In the air temperature, soil temperature, relative humidity, CO2 concentration, soil moisture, light intensity, water flow, PH value, EC value and other parameters for real-time automatic adjustment, detection, to create the best environment for plant growth, so that the environment in the greenhouse close to the artificial ideal value, in order to meet the needs of greenhouse crop growth and development. It is suitable for seedling breeding, high-yield planting and cultivation of rare and rare flowers, so as to increase the output of greenhouse products and improve labor productivity. It is a successful example that high-tech achievements serve the modern agriculture of large-scale production.

Computer operators input the data and control parameters required by planting crops into the computer, and the system can realize unmanned automatic operation. The data collected by the computer can be accurately displayed and counted, providing reliable basis for experts to make decisions. The control cabinet is equipped with manual/automatic switch, which can be manually controlled when necessary.

How does the greenhouse monitoring system work

The computer collects various environmental parameters through sensors, combines the knowledge of agricultural expert system, makes decisions and gives instructions, and controls irrigation system, temperature regulating system, humidity regulating system, internal and external shading and light replenishment system and other equipment through manual, automatic and computer network (wired and wireless), so as to create suitable environmental conditions for crop growth and development. To achieve high yield, high quality and efficient production targets.

The system can be widely used in the production management of modern greenhouses, storage and preservation warehouses, breeding and storage houses and other agricultural facilities in various regions, so that users can truly appreciate the convenience brought by "science and technology serves agriculture". Through the use of the greenhouse monitoring system, farmers can feel that "no matter the wind and rain outside, the greenhouse is always good".

Application of Internet technology in intelligent greenhouse

In fact, Internet technology is a kind of perception technology, modern network technology, artificial intelligence and automation technology aggregation and integrated application.

In the greenhouse environment, a single greenhouse can use Internet technology to become a wireless sensor network measurement control area, using different sensor nodes and nodes with simple actuators, such as fans, low-voltage motors, valves and other low working current actuators, to form a wireless network. To measure the matrix humidity, composition, pH value, temperature and air humidity, air pressure, light intensity, carbon dioxide concentration, and so on, and then through the model analysis, automatic control of the greenhouse environment, control irrigation and fertilization operations, so as to obtain the best conditions for plant growth.

The innovation of agricultural production and management system will accelerate the popularization of smart greenhouse

Faced with the current situation of a large outflow of rural labor force, the state issued the No. 1 document advocating innovation in agricultural production and operation system, the development of family farms, large farmers, new farmer cooperative organizations, and support leading enterprises to form large enterprise groups through merger, reorganization, acquisition, holding and other means. We will establish demonstration bases for agricultural industrialization and promote the development of leading enterprise clusters. Leading enterprises are encouraged to establish a tight interest linkage mechanism with farmers, and farmers are encouraged to share more of their processing and sales revenue by means of rock-bottom purchase, share dividend and profit return. We will encourage and guide urban industrial and commercial capital to invest in rural areas to develop planting and breeding industries suitable for enterprise operation. We will increase funds to support agricultural industrialization, and support leading enterprises in building raw material bases, energy conservation, emission reduction, and brand cultivation.

It is not difficult to see that the formation and development of family farms, large agricultural growers and farmers' cooperative organizations will accelerate the promotion and application of intelligent greenhouse in agriculture. Because these new agricultural economies have the money, the technology, the talent, and the ability to use new smart greenhouse technologies to increase the value of land per unit of output and maximize the benefits of family farms.