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Granary Condensation and Granary Temperature and Humidity Monitoring System
Grain, as an important strategic resource of our country, is the foundation of the national economy and a major event related to the national economy and the people's livelihood. Therefore, the safety, quality and quantity of food are related to the overall situation of the country's social stability and economic development. It is of great significance to do a good job of grain reserves to ensure the balance of grain supply and demand and national food security. Friends who have grown grain at home should know that due to dew condensation in grain piles during grain storage, especially during the alternation of winter and spring, local grain piles in the warehouse will be stratified, forming a large temperature difference. Dew point will form condensation, which will increase the local moisture content of grain piles, causing grain respiration, intensifying microbial activity, and even causing heat and mildew in grain piles, which seriously endangers food security. What are the factors that affect the condensation of grain piles? There are many factors that affect condensation, but the main influencing factors are temperature, humidity and grain moisture content. Temperature: When the expanding hot air of the grain storehouse is cold, the volume will shrink rapidly, making the water vapor reach a saturated state and forming condensation. The greater the temperature difference, the more severe the condensation. The smaller the temperature difference (below the dew point), there will be no condensation. Humidity: When the temperature is constant, the greater the humidity, the more water content in the air. When the temperature drops slightly, the saturation decreases, and the dew point is reached, forming condensation. Therefore, the higher the humidity in the environment, the easier it is to condense; the lower the humidity, the drier the air and the less likely it is to condense. Grain moisture content: The moisture content of the grain itself is also closely related to it. The higher the moisture content, the more serious the analysis. The greater the pore humidity of the grain pile, the easier it is to dew. The smaller the grain moisture, the less likely it is to condense. Dew. Moisture and heat diffusion: Moisture and heat diffusion cause moisture stratification, leading to condensation. The more severe the spread of heat and humidity, the more likely it is that condensation will occur. What is the relationship between dew condensation and the granary temperature and humidity monitoring system? Now, in grain storage enterprises, the Internet of Things and sensors are applied to grain management, and a set of intelligent grain depot online monitoring system, also known as granary temperature and humidity monitoring system, has been established. Based on temperature and humidity sensors, the system uses big data analysis technology to realize the functions of data display, data storage and intelligent early warning through the cloud platform, so that food management is no longer only dependent on reports, but directly controlled to the scene, to the field, and to the The immediate changes in food conditions ensure food security. The granary temperature and humidity monitoring system is based on temperature and humidity sensor technology, data transmission technology, and network cloud technology. It uses big data analysis technology to realize the functions of data display, data storage and intelligent early warning through the cloud platform, so that the management of grain Relying only on manual detection, but directly controlling the immediate changes in the on-site grain situation in the control room to ensure food security. The temperature and humidity sensor is the monitoring terminal in the grain condition monitoring system. The temperature and humidity sensor can cooperate with the computer terminal for data management and control to realize real-time monitoring of temperature and humidity in the granary, control of exhaust fans, air conditioners and other equipment to ensure good ventilation in the warehouse. About the choice of temperature and humidity sensor Wired transmission: Smaller granaries can use wall-mounted temperature and humidity sensors, which can be directly uploaded to the local computer host via line 485 for internal viewing only to ensure absolute data security. Wireless transmission: If the granary is large, the wiring method in the warehouse will become very cumbersome. The use of 4G and WIFI temperature and humidity sensors can avoid the trouble of wiring, and can be directly uploaded to the cloud platform on mobile phones and other devices The terminal can also be viewed directly.
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