Granary monitoring and early warning method

Abstract

The invention relates to a granary monitoring and early warning method. The granary monitoring and early warning method comprises the steps that alarming is achieved by a computer when the temperature and humidity inside each granary are out of upper limits or lower limits by measuring the temperature and humidity of the interior of the granary; a bus network is established by all granaries through RS485, the real-time values and average values of the temperature and humidity of each granary, the station number of each sensor, and the arrangement conditions of sensors in each granary are monitored and displayed in a centralized mode through a computer workstation in a main control room; the short circuit information and open circuit information of each sensor and the real-time alarm information are displayed, and storage, inquiry and printing of historical data are achieved.

Description

technical field [0001] The invention belongs to the fields of electrical and electronic technology, computer technology and automation, and in particular relates to a grain depot monitoring and early warning method. Background technique [0002] Food is a necessity for human survival. Every year, a large amount of new grain is harvested and some old grain is backlogged. If a large amount of food is wasted due to improper storage, it will cause huge economic losses. Food security is very important. The safety of grain in the storage process is mainly manifested in the change of grain temperature and moisture. Once the grain is damp, its metabolism will speed up and produce respiratory heat. Changes, you can grasp the food situation. Therefore, the safe storage of grain has always been a major problem that plagues grain management units. It is imperative to improve the conditions of grain storage, improve the level of grain storage technology, and promote the progress of grai...

AI Technical Summary

Problems solved by technology

Although this monitoring method basically meets the requirements in terms of function, it will cause the following problems when wiring: the grain depot project is huge, resulting in high costs; once the equipment and wiring system are completed, it is difficult to change, and the flexibility of the system is poor, which is easy to cause The vacancy of its lines and collection facilities reduces the utilization rate of the system; the system is easily damaged by pests, food fumigation, human factors and other factors, resulting in secondary cost investment

The existing wired grain monitoring methods can no longer meet the requirements

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