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基于无线网络的温湿水一体化粮情监测系统

发布时间:2018-08-17 13:13
【摘要】:粮食是每一个国家发展的经济基础,关系着国家民生的发展大计,并且已经上升到特殊战略储备物资的地位,甚至可以影响国家的安全以及社会的稳定。粮食的数量、质量以及安全与国家的经济是否能够健康发展息息相关,因此如何利用科学的办法来存储粮食成了重中之重。我国粮仓的建设起步比较晚,设备比较落后,因此在粮食存储过程中损耗比较大。除了粮食存储仓库落后之外,我国检测粮仓内的温度以及湿度的方法比较落后,需要人工检测并且检测的参数比较单一,这样就出现了数据量不多、无法实时监测数据等一系列问题。正因为在粮仓的检测过程中出现了各种各样的问题,所以我们在尽量改善粮食存储环境的同时提出了基于无线网络的温湿水一体化粮情监测系统。该系统主要是利用传感器采集粮仓内粮食的温度、湿度以及谷物的水分,粮仓内的数据采集器通过M-BUS通讯以及RS-485接口获取传感器的数据并将这些数据通过WiFi模块上传到整个粮库的数据集中器中,数据集中器再通过GPRS模块将所有粮仓的数据上传并保存到服务器。在服务器上部署了通讯软件,用来实时监听数据集中器中是否有数据传送,如果有数据传送,则把数据保存到服务器上的数据库中,为用户通过Internet访问粮情监测系统的界面提供数据支持。文章首先介绍了该课题研究的背景、意义、国内外现状以及未来的发展趋势;其次介绍了粮情监测系统的相关技术、开发语言、硬件以及软件的整体设计方案;然后重点介绍了数据采集器以及温湿度传感器的设计与实现,具体主要包括GPRS模块、WiFi模块、M-BUS通讯、RS-485通讯、为各个模块供电的电源电路设计以及为硬件提供顶层支持的软件设计,并给出了相关的硬件设计电路图、相关软件的流程框图、关键代码以及通讯协议;最后介绍了部署到服务器上的三部分内容,分别是上位机与数据集中器之间的通讯软件、数据库设计以及粮情监测系统的访问界面。本课题设计的基于无线网络的温湿水一体化粮情监测系统,该系统能够获取温度、湿度以及谷物水分的原始数据,并且可以通过网络访问粮情监测系统的界面,能够查看最新采集到的数据、查询任何时间段的历史数据并且可以获取该采集点纵向上的温度、湿度以及水分的曲线。
[Abstract]:Grain is the economic base of the development of every country, which is related to the development of the national livelihood, and has risen to the status of special strategic reserve material, which can even affect the security of the country and the stability of the society. The quantity, quality and safety of grain are closely related to the healthy development of the country's economy, so how to use scientific methods to store grain has become a top priority. The construction of granary in our country starts late and the equipment is backward, so the wastage of grain storage process is large. In addition to the backwardness of grain storage warehouses, the methods of detecting temperature and humidity in grain warehouses in China are relatively backward, and the parameters that need manual detection and detection are relatively single. Thus, there is a small amount of data. Unable to monitor data in real time and a series of problems. Because there are various problems in the process of granary detection, we put forward an integrated monitoring system of temperature, humidity and water based on wireless network while improving the storage environment of grain as much as possible. The system mainly uses sensors to collect the temperature, humidity and moisture of grain in the granary. The data collector in the granary acquires the data of the sensor through the M-BUS communication and the RS-485 interface and uploads the data to the data concentrator of the whole grain depot through the WiFi module. The data concentrator uploads and saves all granary data to the server through the GPRS module. The communication software is deployed on the server to monitor whether there is data transfer in the data concentrator in real time and, if there is, to save the data to the database on the server. It provides data support for users to access the interface of grain condition monitoring system through Internet. This paper first introduces the background, significance, current situation and future development trend of the research, and then introduces the related technology, development language, hardware and software of the whole design of the grain situation monitoring system. Then the design and implementation of data collector and temperature and humidity sensor are introduced, including GPRS module, M-BUS communication module and RS-485 communication, power supply circuit design for each module and software design to provide top-level support for hardware. The related circuit diagram of hardware design, flow chart of related software, key code and communication protocol are given. Finally, three parts of communication software are introduced, which are the communication software between the upper computer and the data concentrator. Database design and access interface of grain condition monitoring system. Based on the wireless network, this system can obtain the original data of temperature, humidity and grain moisture, and access the interface of the grain condition monitoring system through the network. Can view the latest collected data, query the historical data of any time period, and get the temperature, humidity and moisture curves of the sampling point longitudinally.
【学位授予单位】:山东建筑大学
【学位级别】:硕士
【学位授予年份】:2017
【分类号】:TP274

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本文编号:2187743


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