Greenhouse monitoring system
Thread Content
1. Overview For greenhouses, the most important factor is temperature and humidity control. The large fluctuations in temperature and humidity throughout the day and night are extremely detrimental to plant growth. Most greenhouses are equipped with thermometers and hygrometers installed inside, and workers need to continuously read these values in order to adjust the temperature and humidity within the greenhouse based on their personal experience. For large numbers of greenhouses, traditional temperature and humidity monitoring methods are no longer suitable. To this end, modern greenhouse management requires an automatic temperature and humidity monitoring system to control the temperature inside the vegetable greenhouses, ensuring it is suitable for plant growth and thereby improving yield and quality. 2. Structural diagram of the greenhouse monitoring system: It mainly involves the monitoring of air temperature and humidity, soil temperature and humidity, agricultural light intensity, carbon dioxide (CO2), oxygen concentration (O3), and ammonia concentration (NH3). Depending on the actual situation, other types of monitoring can be added. The monitoring system notifies the relevant personnel of the data as soon as it becomes available, and activates the appropriate control devices such as sprinklers, blowers, heaters, and cooling systems to adjust the temperature and humidity levels inside the greenhouse, thereby enabling high-quality, high-yield, and efficient cultivation of crops. 3. Conclusion: Greenhouses are primarily used to produce fruits and vegetables outside the normal growing season. Intelligent control systems can significantly increase the yield and quality of crops, while also helping to avoid production losses caused by human factors. This is especially true for high-value cash crops, such as the cultivation of rare plants and flowers. Changxin IoT Technology pioneers a new era for smart agriculture!
Are there any more detailed information, as well as an estimate of the overall cost of such a system?
At present, temperature control is relatively reliable; there’s a startup in Shanghai that does a good job at this. I can’t mention their name since ads aren’t allowed. The other controls are hardly useful; expecting farmers to understand them is also frustrating. It would be great if one could control everything remotely.
1. How to lower the temperature in greenhouses during the hot summer months? 2. The control logic is actually quite simple; the most important aspects are the selection of measuring instruments and the design of measurement points.
This widespread adoption is rather difficult, and it is also necessary to minimize failures in control systems and instrumentation. If there are established applications for this technology, it can be very useful for large-scale greenhouses
Cooling down in greenhouses relies mainly on ventilation; increasing the volume of ventilation will suffice, and if that doesn’t work, it can be achieved by controlling the area of the shading nets.
During the hottest times of summer, the ambient temperature is very high as well, and simple ventilation is not effective. If shade nets are used, combined with poor ventilation, it will only lead to higher temperatures. I was fortunate enough to go to a greenhouse in the summer; although the sunshades were in use, the ventilation was so poor that the temperature there was much higher than the ambient temperature.
Lowering the temperature also involves watering more, as the plant’s own transpiration is quite important as well
We will remove the plastic this summer; it can be controlled by changing the area of the plastic
If the plastic is not removed, the high humidity inside the shelter will make it very stuffy; a water curtain can be used to reduce the temperature, though this will result in higher costs