In the construction of modern grain sensing systems, more scientific and accurate distributed probe detection methods are adopted. This system takes the main control computer as the core of management and control, and sets hundreds of detection instruments throughout the warehouse to achieve real-time measurement, sensing and monitoring of the temperature and humidity in the warehouse. Based on this warehouse detection system, the storage capacity of the warehouse has been greatly improved, fundamentally solving various management accidents caused by grain mildew, and at the same time achieving the purpose of saving labor costs and improving work efficiency. Secondly, the system is also designed to have self-checking and early warning functions, to detect the moisture content of grains before entering the warehouse, and to interlock with the warehouse exhaust device.

In the domestic development of fruit and vegetable refrigeration technology, the two most commonly used methods are controlled atmosphere and low-temperature storage. The main function and function of so-called low-temperature storage is to rely on facilities and equipment to create a constant-temperature environment to ensure aerobic respiration of fruits and vegetables in it, so that deterioration such as mildew or dehydration will not occur in a short period of time. Low-temperature storage uses refrigeration equipment to reduce the storage environment temperature to a certain range (usually between 0 and 10°C) and keep it stable. In such a temperature environment, the active enzymes in fruits and vegetables are inhibited, the basic conditions for the reproduction of various fungi and bacteria are lost, and water evaporation is also greatly reduced, thus allowing the nutrients of fruits and vegetables to be completely preserved.

In the construction of this system, the function and role of the temperature sensor is particularly prominent. It can detect the temperature and humidity in the cold storage in real time through various detection instruments spread throughout the cold storage. Once the temperature value appears to be too high or too low, Automatic adjustment will take place immediately. The controlled atmosphere storage method is more scientific and advanced than the cold storage structure. In addition to detecting and sensing the temperature in the warehouse, it can also comprehensively monitor various other media indicators that may affect the quality of fruits and vegetables, including carbon dioxide, Oxygen, humidity, etc.