基于LabVIEW的养殖场环境监控系统

发布时间：2018-05-20 00:37

本文选题：养殖场 + 环境监控　；参考：《华中农业大学》2015年硕士论文

【摘要】：在我国畜禽养殖业正逐步向规模化和集约化发展,并已开始出现大型的综合性养殖场。营造一个健康的养殖环境对保证畜禽产品的质量和产量起着至关重要的作用,因为良好的养殖环境在保证一个适宜畜禽生长环境的同时还可以有效降低畜禽疫病的发生,促进畜禽的健康成长和提高相关畜禽产品的产量。在畜禽养殖业中,轴流风机、降温湿帘以及日光灯等环境调控设备因具有良好的调控效果,已经被广泛地使用,但养殖场环境调控设备的控制方式目前大多还是依靠管理人员的操作经验,采用人工和机电相结合的简单控制方式,缺乏系统的控制方法,自动化水平较低,无法满足养殖业规模化发展的需要。近年来国内的专家学者已逐渐开始研究关于养殖场环境自动控制的技术,利用计算机、单片机、无线传感器技术以及现代控制算法等方式来构建环境监控系统,实现养殖场环境的自动控制。本研究在详细研究畜禽养殖技术的基础上,分析对比国内养殖场环境监控系统的研究现状,根据养殖场的环境控制要求,提出了一种基于Lab VIEW的养殖场环境监控系统。系统利用模拟量采集模块采集环境参数变送器的信息并发送至计算机,经过计算机的算法处理后将控制指令发送到单片机,由单片机控制相应环境调控设备的开启和关闭。系统利用Lab VIEW软件为设计平台,开发了支持Modbus协议的上位机软件,其最大的特点是能与任意支持Modbus协议的数据采集模块建立组网通信,这使得本系统的具有很强的实用性和互换性,可用于实现多个养殖场的组网监控;系统采用Modbus模拟量数据采集模块采集各变送器输出的标准电流信号,无需增加外部信号处理电路及AD转换硬件电路,系统结构简单、稳定;系统具有模糊PID控制算法和温湿指数控制算法两种控制方法,模糊PID算法将模糊控制与PID控制结合起来,综合两者的优点可实现对封闭式养殖场环境的稳定调控;温湿指数算法可用于开放式养殖场的降温控制。
[Abstract]:In China, livestock and poultry breeding industry is gradually developing to scale and intensive, and has begun to appear large comprehensive farms. Creating a healthy breeding environment plays a vital role in ensuring the quality and output of livestock and poultry products, because a good breeding environment not only ensures a suitable environment for livestock and poultry growth, but also effectively reduces the incidence of livestock and poultry disease. To promote the healthy growth of livestock and poultry and to increase the output of related livestock and poultry products. In livestock and poultry farming, environmental control equipment such as axial flow fans, cooling and wet curtains and fluorescent lamps have been widely used because of their good regulatory effects. However, at present, most of the control methods of the environmental control equipment in the farm still rely on the operation experience of the management personnel, adopt the simple control mode of combining manual and electromechanical, lack of systematic control method, and the level of automation is relatively low. Can not meet the needs of large-scale development of aquaculture. In recent years, domestic experts and scholars have gradually begun to study the technology of automatic control of farm environment, using computer, singlechip, wireless sensor technology and modern control algorithm to construct environment monitoring system. Realize the automatic control of farm environment. Based on the detailed study of livestock and poultry breeding technology, this paper analyzed and compared the current situation of domestic livestock farm environment monitoring system. According to the requirement of farm environment control, a kind of environment monitoring system based on Lab VIEW was put forward. The system uses analog data acquisition module to collect the information of the environmental parameter transmitter and sends it to the computer. After the algorithm of the computer is processed, the control instructions are sent to the single chip microcomputer, and the SCM controls the opening and closing of the corresponding environmental control equipment. Using the Lab VIEW software as the design platform, the system developed the host computer software supporting the Modbus protocol. Its biggest characteristic is that it can set up the network communication with any data acquisition module which supports the Modbus protocol. This makes the system have strong practicability and interchangeability, it can be used to realize the network monitoring of many farms, the system uses Modbus analog data acquisition module to collect the standard current signals from each transmitter. The system has two control methods: fuzzy PID control algorithm and temperature and humidity index control algorithm. Fuzzy PID algorithm combines fuzzy control with PID control. Combining the advantages of the two methods, the stable control of closed farm environment can be realized, and the temperature and humidity index algorithm can be used to control the cooling of open farm.
【学位授予单位】：华中农业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TP277;S818.9

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