基于POWERLINK的工业实时以太网多接口路由器设计与实现

发布时间：2018-02-28 13:15

本文关键词： 工业以太网 POWERLINK FPGA STM32 多接口路由器　出处：《西安电子科技大学》2014年硕士论文　论文类型：学位论文

【摘要】：伴随着科学技术的不断发展,工业自动化测控系统的不断更新,工业现场对数据采集以及传输设备的依赖愈发强烈。高速、实时的通信总线是数据传输的纽带,在实现远程监控、网络化测试系统中占据重要地位。以太网现场总线是工业控制领域的重要成员,其应用广泛、成本低廉、通信速率高等特点,在通信设备互联以及信息集成中发挥着重要作用。但是以太网实时性较差是其软肋,Ethernet POWERLINK工业实时以太网的出现,弥补了传统以太网的不足,并且只要有以太网接口的设备都可以应用。在工业现场应用中,被测设备的接口各异,为了满足多种应用场合,可在传输设备中增加了其他应用较为广泛的数据传输接口,多接口设计将会使得通信系统能够实现无差异传输,应用更加广泛。本系统设计了六种接口,除了实时性较高的POWERLINK接口外,还集成了两种有线接口CAN、RS485,以及3种无线接口RF433、ZigBee、WI-FI。所有接口可以通过预设置,配置其主从口。路由器上行口为3种有线的一种,下行口为其余五种接口的任意组合。本系统采用基于FPGA和openPowerlink协议栈实现了POWERLINK从站接口设计,STM32作为系统的核心控制器,使用自带的UART和CAN控制器实现了RS485总线接口和CAN总线接口设计,通过UART和SPI外挂无线模块实现了RF433接口和WI-FI接口,采用MSP430加CC2520模块和Z-stack协议栈实现了ZigBee接口。系统软件使用RTX多任务实时操作系统,完成多任务调度。基于POWERLINK的多接口路由器的设计与实现,完成了多种通信接口之间的灵活转换和协议互通,扩展了工业现场数据采集和传输的范围,根据工业现场实际情况,能够灵活配置,为后续改进系统性能以及实现更多类型的网络接入提供了解决方案。
[Abstract]:With the continuous development of science and technology and the continuous updating of industrial automation measurement and control system, the industrial field relies more and more on data acquisition and transmission equipment. High speed, real-time communication bus is the link of data transmission. Ethernet fieldbus is an important member of industrial control field, which is widely used, low cost, high communication rate and so on. It plays an important role in communication equipment interconnection and information integration, but the bad real-time performance of Ethernet is the appearance of Ethernet POWERLINK industry real time Ethernet, which makes up for the deficiency of traditional Ethernet. In the industrial field application, the interface of the tested equipment is different, in order to satisfy many kinds of applications, other widely used data transmission interfaces can be added in the transmission equipment. Multi-interface design will enable the communication system to achieve non-differential transmission, more widely used. This system designed six interfaces, in addition to the real-time POWERLINK interface, It also integrates two wired interfaces, CANU RS485, and three wireless interfaces, RF433N ZigBeeWI-FI.All interfaces can be configured by pre-setting their master-slave ports. The router uplink port is one of three wired ports. The downlink port is any combination of the other five interfaces. This system uses POWERLINK slave station interface design based on FPGA and openPowerlink protocol stack as the core controller of the system. The design of RS485 bus interface and CAN bus interface is realized by using UART and CAN controller, and RF433 interface and WI-FI interface are realized by UART and SPI external module. The ZigBee interface is implemented by MSP430 plus CC2520 module and Z-stack protocol stack. The system software uses RTX multitask real-time operating system to complete multitask scheduling. The design and implementation of multi-interface router based on POWERLINK are presented. The flexible conversion and protocol interworking between various communication interfaces have been completed, and the scope of data collection and transmission in industrial field has been expanded. According to the actual situation of industrial field, it can be configured flexibly. It provides a solution for further improvement of system performance and implementation of more types of network access.
【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】：TP273;TP393.05

【相似文献】