1. Introduction to greenhouse control system.
Factors such as temperature, humidity, light intensity, soil temperature and moisture content in the greenhouse play a key role in the growth of crops in the greenhouse. The greenhouse automatic control system is based on PLC as the core, and the computer distribution network control structure is used to automatically adjust and detect the temperature, humidity, CO2 concentration, soil moisture, light intensity, water flow and pH value and other parameters in the greenhouse in real time, so as to create the best environment for plant growth, and make the environment in the greenhouse close to the ideal value of artificial design, so as to meet the needs of greenhouse crop growth and development. It is suitable for seedling breeding, high-yield planting, precious and rare flower cultivation and other sites to increase the output of greenhouse products and improve labor productivity. It is a successful example of high-tech achievements serving modern agriculture for large-scale production.
Second, the advantages of intelligent control system.
1.Accurate data collection.
The system adopts the cutting-edge "data transfer technology" to continuously store environmental data on the greenhouse controller. Every time you turn on your computer, the data will be automatically uploaded to your PC for long-term data collection. The user can freely select the recording interval from 1 minute to 999 minutes, and any sensor can be set to record. The recorded data can be exported as an "execl" report, and a daily, weekly, and monthly trend chart can be generated at the same time, which is convenient for us to compare and analyze. Through the in-depth analysis of the sensor data, it is possible to determine the type of crop that the soil is suitable for;The climate and environmental sensors can collect crop growth environment data in real time to provide strong support for scientific cultivation.
2.Low carbon and energy saving.
The control logic will select the optimal control system to achieve the optimal environmental system inside the greenhouse, for example, if the indoor greenhouse is higher than the set value of 30 degrees Celsius, then the top window ventilation or fan water curtain can be used to cool down, then the system will choose to give priority to the use of low energy consumption window ventilation and cooling according to the outdoor climate dataWhen the window is opened for ventilation and cooling can not achieve a good effect, the fan and water curtain will be used for ventilation and cooling.
3.Labor savings.
We only need to set various parameters in the system in advance, and then the system will logically control the switches of various systems in the later stage, and there is no need to manually turn on the system regularly. And the system will have the function of SMS alarm. The Internet of Things agricultural cultivation method has fundamentally completed the system automation, intelligence and long-distance. More accurate and efficient than manual cultivation.
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