In the greenhouse environment, a single greenhouse can use Internet technology to become a measurement and control area of the wireless sensor network, using different sensor nodes and nodes with simple actuators, such as fans, low-voltage motors, valves and other actuators with low operating current , Constitute a wireless network to measure substrate humidity, composition, pH, temperature, air humidity, air pressure, light intensity, carbon dioxide concentration, etc., and then through model analysis, automatically regulate the greenhouse environment, control irrigation and fertilization operations, so as to obtain plant growth Optimal conditions.
For agricultural parks with greenhouses, the Internet of Things can also realize automatic information detection and control. By being equipped with wireless sensor nodes, each wireless sensor node can monitor various environmental parameters. By receiving the data sent by the wireless sensor convergence node, storing, displaying and data management, the acquisition, management, analysis and processing of the information of all base test points can be realized, and it can be displayed to the users in each greenhouse in the form of intuitive graphs and curves. At the same time, various sound and light alarm information and SMS alarm information are provided according to the needs of planting plants, so as to realize the intensive and networked remote management of the greenhouse.
In addition, the Internet of Things technology can be applied to different stages of greenhouse production. At the stage when the greenhouse is ready to be put into production, by arranging various sensors in the greenhouse, the internal environmental information of the greenhouse can be analyzed in real time, so as to better select the suitable varieties for planting; in the production stage, the practitioners can use the Internet of Things technology to collect the temperature in the greenhouse Various types of information such as, humidity, etc., to achieve fine management. For example, the opening and closing time of the shading net can be sensor-controlled based on information such as temperature and light in the greenhouse, and the startup time of the heating system can be adjusted based on the collected temperature information, etc.; After the product is harvested, the information collected by the Internet of Things can also be used to analyze the performance and environmental factors of plants at different stages and feed them back to the next round of production, so as to achieve more precise management and obtain better quality products.
The application of the Internet of Things technology in the greenhouse can achieve the purpose of improving product quality, regulating the growth cycle, and increasing economic benefits, especially the high efficiency and precision of greenhouse management. For large-scale greenhouse facilities, manual adjustment of the environmental conditions in the greenhouse requires a lot of manpower and time, and there are unavoidable manual errors. If you apply the Internet of Things technology, you only need to click the mouse to complete the manual operation in the shortest time, and it is very rigorous. This is also an important reason why the industry is optimistic about the application of the Internet of Things in modern agriculture.
With the popularization and application of the Internet of Things technology, ordinary users can receive various real-time accurate sensor data through computers or mobile phones at any time, and can also observe the overall situation of the greenhouse by remotely controlling the video sensors in the greenhouse. After the product leaves the nursery, its circulation process can be retrieved at any time by the corresponding barcode. The industry generally believes that the IoT agricultural intelligent monitoring system will be more widely used in facility agriculture.
