Single-chip microcomputer based warehoused unhulled rice humidity on-line detection system

A technology of detection system and single-chip microcomputer, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., and can solve problems such as difficult control of humidity

Inactive Publication Date: 2013-01-16
盛晓洁
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, before the rice enters the warehouse, it is mainly manually picked out for inspection, and it is difficult to control the humidity. It can only be detected when the humidity of the drawn grain bag is too high, which affects the appearance and smell of the grain.

Method used

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  • Single-chip microcomputer based warehoused unhulled rice humidity on-line detection system
  • Single-chip microcomputer based warehoused unhulled rice humidity on-line detection system
  • Single-chip microcomputer based warehoused unhulled rice humidity on-line detection system

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Embodiment Construction

[0019] The on-line detection system of rice humidity in the warehouse is composed of humidity transmitter, A / D conversion, single chip microcomputer, display part, alarm indication and control motor.

[0020] The microcontroller used in this hardware system is AT89C51. The humidity sensor converts the external humidity into an analog voltage signal, and then amplifies and linearizes the signal so that the signal is within the range of the A / D conversion chip. Under the control of AT89C51, the A / D conversion chip completes the A / D conversion of the signal, and then sends the converted digital signal to AT89C51. AT89C51 performs data comparison and BCD code conversion, and finally uses the digital tube to display the current humidity in 2 digits. When the humidity exceeds its requirements, it will alarm and cut off the control motor. The system starts to run directly after power-on reset. During operation, the system detects the current humidity every 3 seconds and sends it to ...

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Abstract

The invention provides a single-chip microcomputer based warehoused unhulled rice humidity on-line detection system, which consists of a humidity transmitter, an A/D converter, a single-chip microcomputer, a display part, an alarm indicator and a control motor.

Description

technical field [0001] The invention belongs to an on-line detection system for humidity of incoming rice based on a single-chip microcomputer. Background technique [0002] In large grain reserve depots, the purchased rice may become moldy due to excessive humidity. At present, before the rice enters the silo, it is mainly manually picked out for inspection, and it is difficult to control the humidity. Only when the humidity of the drawn grain bag is too high, which affects the appearance and smell of the grain, can it be detected. How to use testing instruments to detect the humidity of online transported grain before the grain enters the warehouse, and keep unqualified grain out of the warehouse door, so as to improve the quality of grain storage, is an important issue that has attracted much attention in grain storage. [0003] When the rice enters the warehouse, the soil workers usually open the bagged rice on the grain truck and put it on the conveyor belt, and then t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00
Inventor 盛晓洁
Owner 盛晓洁
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