基于多种工业现场输入信号的网络路由器的设计与实现

发布时间：2018-07-27 13:15

【摘要】：随着工业自动化技术的快速发展,工业生产中对生产过程的控制的要求越来越高,生产复杂度也相应增加,而以往普通的人工操作已经满足不了现代工业生产的发展需求。所以,近年来计算机技术和嵌入式技术已经逐渐被引入到工业生产中,使其在工业生产中发挥出优势。本文是通过基于嵌入式的工业以太网技术来解决工业生产中的数据传输问题,证明了工业以太网技术在工业生产中的有效性和实用性。温度是工业生产中重要的参数之一,随着工业生产过程的复杂度增加,对温度测量的要求也越来越严格,所以在本课题中分别使用K型热电偶和热电阻PT100对工业生产中的温度进行测量。系统中对温度传感器的数据采集和处理主要使用TI公司的低功耗微处理器MSP430F5529,并通过工业现场总线协议Modbus协议将采集的数据传送至网络终端系统。数据采集部分的硬件部分主要包括热电阻测温、热电偶测温、0~10mA以及4~20mA信号的采集部分。本文系统的网络终端是通过网络控制芯片ENC28J60和TI公司的低功耗芯片MSP430F5529来设计和开发的。主控制器MSP430F5529编写相应的以太网控制器驱动程序来驱动以太网的发送和接收,然后把经过剪裁的TCP/IP协议移植到主控制芯片,最后通过网络接口RJ45来实现本地的局域网的通信。上位机部分是使用NI公司的LabVIEW软件进行编写,主要包括数据的接收部分、数据的保存部分、数据的显示部分三个方面。数据的接收部分主要是通过TCP/IP协议来实现数据的接收。数据的保存主要是通过数据库将接收的数据进行保存。数据的显示部分主要是对下位机发送上来的数据进行实时显示,实现工业现场的实时监控。通过上述三个部分,本课题不仅实现工业现场的温度采集,而且实现了工业现场的以太网控制,使得整个工业生产的劳动力减少、操作简单,并且实现了远程监控,对整个工业生产具有重要的意义。
[Abstract]:With the rapid development of industrial automation technology, the demand of industrial production for the control of production process is more and more high, and the production complexity increases accordingly. But the common manual operation has been unable to meet the needs of the development of modern industrial production in the past. Therefore, in recent years, computer technology and embedded technology have been gradually introduced into industrial production, so that it plays an important role in industrial production. In this paper, the problem of data transmission in industrial production is solved based on embedded industrial Ethernet technology, which proves the validity and practicability of industrial Ethernet technology in industrial production. Temperature is one of the most important parameters in industrial production. As the complexity of industrial production increases, the requirement of temperature measurement becomes more and more strict. Therefore, K-thermocouple and PT100 are used to measure the temperature in industrial production. The low power microprocessor MSP430F5529 of TI company is used to collect and process the data of temperature sensor, and the collected data is transmitted to the network terminal system by Modbus protocol. The hardware of the data acquisition part mainly includes the thermal resistance temperature measurement, the thermocouple temperature measurement and the 4~20mA signal acquisition. In this paper, the network terminal is designed and developed by the network control chip ENC28J60 and TI's low power chip MSP430F5529. The main controller MSP430F5529 writes the corresponding Ethernet controller driver to drive the transmission and reception of Ethernet, then transplants the clipped TCP/IP protocol to the master control chip, finally realizes the local LAN communication through the network interface RJ45. The upper computer part is written with NI company's LabVIEW software, including the receiving part of data, the saving part of data, and the display part of data. The receiving part of data is mainly realized by TCP/IP protocol. Data storage is mainly through the database will receive the data to save. The display part of the data is mainly to display the data sent from the lower computer in real time and realize the real-time monitoring of the industrial field. Through the above three parts, this subject not only realizes the temperature collection in the industrial field, but also realizes the Ethernet control in the industrial field, which makes the labor force of the whole industrial production reduce, the operation is simple, and the remote monitoring is realized. It is of great significance to the whole industrial production.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN915.05

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