粮仓的温湿度检测与电动窗控制系统的开发

发布时间：2018-02-12 11:33

本文关键词： 自然通风温湿度检测电动窗控制　出处：《北方工业大学》2013年硕士论文　论文类型：学位论文

【摘要】：我国粮食产后综合损失率较高,粮食储藏科学对减少粮食产后损失有重要意义。从国内外粮食储藏科学的发展史和现状来看,低温储粮技术是粮食储藏科学重要的研究方向之一。低温储粮技术中采用的控温方式主要包括机械通风、机械制冷和自然通风,实验数据表明自然通风比机械制冷和机械通风能降低储粮能耗和提高储粮效益。考虑到部分粮仓窗户设计不合理的现状,采用电动窗控制系统既能用于自然通风降温,又能便于粮仓窗户开关控制。介绍了自然通风可用于低温储粮技术的实验依据。参考粮食行业标准和企业标准提出了进行自然通风应满足的温湿度条件,并据此得出了进行自然通风对粮仓温湿度检测的要求。按照进行自然通风对粮仓温湿度检测的要求,设计了一种具有温湿度检测和电动窗控制功能的系统。从温湿度检测部分、电动窗控制部分和电动窗遥控部分三方面介绍了系统底层硬件和软件设计方案,总结了系统硬件整体结构和软件整体流程。从通信数据帧结构、软件功能和用户界面三方面介绍了系统上位机软件设计方案。从数据通信和控制效果两方面对系统功能进行了测试。总结了全部研究内容,并做出展望。
[Abstract]:The comprehensive loss rate of grain is high in China, and the science of grain storage plays an important role in reducing the loss after grain delivery. From the history and present situation of grain storage science at home and abroad, Low temperature grain storage technology is one of the important research directions of grain storage science. The temperature control methods used in low temperature grain storage technology mainly include mechanical ventilation, mechanical refrigeration and natural ventilation. Experimental data show that natural ventilation can reduce energy consumption and improve efficiency of grain storage compared with mechanical refrigeration and mechanical ventilation. Considering the unreasonable design of some grain silo windows, electric window control system can be used to reduce temperature of natural ventilation. Also can facilitate the granary window switch control. This paper introduces the experimental basis that natural ventilation can be used to store grain at low temperature. Referring to the standards of grain industry and enterprise, the conditions of temperature and humidity that should be satisfied for natural ventilation are put forward. Based on this, the requirements of natural ventilation for temperature and humidity detection of granary are obtained. According to the requirements of natural ventilation for the temperature and humidity detection of granary, a system with the functions of temperature and humidity detection and electric window control is designed. This paper introduces the hardware and software design scheme of the bottom layer of the system from three aspects: the control part of the electric window and the remote control part of the electric window, and summarizes the overall structure of the system hardware and the whole flow of the software. This paper introduces the software design scheme of the upper computer in three aspects of software function and user interface, and tests the system function from two aspects: data communication and control effect. All the research contents are summarized, and the prospect is made.
【学位授予单位】：北方工业大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TP368.1;TP273

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