Grain status monitoring system based on fieldbus

Abstract

The invention relates to a grain status monitoring system, belongs to the field of electrical and electronic techniques, computer techniques and automation and particularly relates to a grain status monitoring system based on a CAN (controller area network) fieldbus. The grain status monitoring system based on the CAN fieldbus comprises a management center computer (1), an RS-232 (recommended standard-232) conversion CAN fieldbus module (2), a fieldbus (3), a plurality of CAN fieldbus control terminals (4), a plurality of temperature sensors (5), a plurality of humidity sensors (6) and a plurality of contactors (7), wherein the management center computer (1) is used for completing the dynamic real-time display and accurate control of a monitoring interface, and the CAN fieldbus control terminals (4) are used for acquiring temperatures and humidities, and signals of the contactors (7), then transmitting the temperatures, humidities and signals to the management center computer (1). The grain status monitoring system provided by the invention is good in control real-time performance, vivid and accurate in monitoring interface, simple and efficient in circuit, strong in anti-jamming capability, less in cable, convenient to use and low in cost.

Description

Technical field [0001] The invention belongs to the fields of electric and electronic technology, computer technology and automation, and specifically relates to a field bus-based grain situation monitoring system. 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 grain...

AI Technical Summary

Problems solved by technology

The measures taken in the past were to use artificial methods to dry the grain, ventilate it, and spray chemicals to prevent insect damage caused by improper storage, which consumed a lot of manpower and financial resources. However, the effect was not good, and the phenomenon of mold and deterioration still existed.

With the development of electronic technology and computer technology, electronics and computers are widely used to measure, control and manage the grain situation, but there are still many unsatisfactory problems, such as poor anti-interference performance, loss of transmitted data, and the interface of the upper computer is not vivid, etc. , in view of these situations, a fieldbus-based grain situation monitoring system is proposed, which can reduce grain loss and increase farmers' income

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