An early warning and control system and method for dew condensation in grain piles based on temperature and humidity field coupling

Abstract

The invention discloses a grain pile dew condensation early warning and control system and method based on temperature and humidity field coupling. The early warning and control system includes a temperature measurement sensor array, an analysis and early warning device, and a ventilation control device that are electrically connected in sequence; The sensor array includes a plurality of regularly arranged temperature sensors, which are respectively arranged at different positions inside the grain pile, and each temperature sensor is located at an actual measurement point inside the grain pile; the analysis and early warning device includes a temperature field construction module, a humidity field building module and a coupling module, and the temperature field building module is electrically connected to the humidity field building module and the coupling module in turn. The early-warning prevention and control system and method can predict the time and location of dew condensation that may occur in grain piles in a few days or tens of days, thereby avoiding mildew loss, reducing expenses, and ensuring the quantity and quality of stored grain.

Description

Technical field [0001] The invention relates to the technical fields of food storage safety theory and engineering control, and in particular to a system and method for early warning and control of grain pile condensation based on temperature and humidity field coupling. Background technique [0002] Food security is related to national security. Since 1998, a number of large-scale grain storage depots have been built in my country. The research team headed by Wu Zidan of the National Grain Administration Academy of Sciences proposed and promoted the new “four-in-one” technology for grain storage, making my country's comprehensive grain storage technology a step forward. A new level, and the condensation of grain piles is one of the important hidden dangers that threaten food security. [0003] Grain pile condensation refers to the phenomenon that the water vapor in the grain pile reaches a saturated state and condensation water begins to appear on the surface of grain grains, equi...

AI Technical Summary

Problems solved by technology

But this requires the management personnel to have enough experience, otherwise improper ventilation will not only increase the cost, but also may lead to excessive moisture loss; and untimely ventilation often causes serious mildew loss

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