Intelligent controller of grain drier

Abstract

The invention discloses an intelligent controller of a grain drier. The intelligent controller comprises a grain moisture measuring circuit, an air temperature measuring circuit, a single chip microcomputer processing unit, a keyboard input circuit, an over-limit alarm circuit, a liquid crystal display circuit and a motor control circuit, wherein the grain moisture measuring circuit is used for measuring moisture of grains at the outlet of the grain drier; the air temperature measuring circuit is used for measuring airflow temperature in the drier; the motor control circuit is used for controlling a grain discharging speed; and the grain moisture measuring circuit, the air temperature measuring circuit, the keyboard input circuit, the over-limit alarm circuit, the liquid crystal display circuit and the motor control circuit are respectively connected with the single chip microcomputer processing unit. An AT89S5X series chip and some peripheral devices are only used in the intelligent controller disclosed by the invention; the drying time is controlled by acquiring temperature of dry air and moisture content of grains at the outlet of the grain drier, so that the drying process is controlled; meanwhile, the intelligent controller also has an alarming and displaying function if drying conditions are excess and has higher flexibility and practicability; and the intelligent controller of the grain drier is installed on a universal grain drier and has a very low cost.

Description

technical field [0001] The invention relates to an agricultural machine, in particular to an intelligent grain dryer controller. Background technique [0002] Grain dryers are an important part of agricultural machinery. Due to the lack of drying equipment, the harvested grains cannot be dried to safe water in time, causing mildew and deterioration. The loss in a normal year is 2.5 million tons, and the loss in a disaster year is as high as 10 million tons. Grain dryers are related to high yields and harvests and a major event in ensuring grain quality. The research and development of foreign grain drying equipment was relatively early. By the 1990s, the research on drying technology had reached a relatively high level, and the products had reached serialization, standardization, stable performance, good quality, and high automation level. my country's grain dryer started late. Although it has formed a certain production capacity and use capacity, there are still many prob...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an intelligent grain drying process controller, which makes up for the defects that some existing grain drying process control methods are relatively complicated and the equipment is too large, and also solves the problem that the complex grain drying process cannot be controlled

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