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采用可编程I/O接口的多路串行通讯模拟器设计 被引量:1

Design of Multi-channel Serial Communication Simulator Based on Programmable I/O Interface
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摘要 某航天器闭式贮箱增压控制系统的测试中,需要设计具有多路串行通讯接口的模拟器,用于模拟数字式压力传感器的输出信号;对于72路串行发送和10路串行接收功能,若采用传统商用的标准串行通讯接口板,则整个模拟器需要十多套板卡,系统复杂,体积大,且多个通道之间难以实现同步与实时控制;为此提出了一种采用多路可编程I/O接口板实现485通讯功能的方案,借助于LabVIEW软件开发平台,由FPGA编程实现通讯协议;并配置信号调理板以实现信号的隔离传输和驱动;最终仅用一台小型便携式设备和三块板卡就实现了模拟器的所有功能,可以灵活地根据系统设置的工作模式模拟传感器的输出,在增压系统的测试中表现优异;试验结果表明,此种设计方案具有较强的通用性和适应性,可以广泛推广到多种通讯应用场合。 The purpose of this paper is to design a simulator with multi-channel serial communication interfaces to simulate the outputs of pressure sensors,which would be used for the test of closed-loop pressure control system.For the requirement of 72 transmission interfaces and 10 receiving interfaces,it would be more than 10 boards with the application of standard commercial communication cards,and the simulator would be large,complex,and difficult to achieve real-time and synchronous control among those channels.So,a multi-channel programmable I/O interface board is applied for RS-485 communication,whose protocol is programmed on the FPGA supported by LabVIEW platform;and regulation boards are deployed for signal's isolated transmission and driving.All functions are implemented within a miniaturized portable device,which is flexible to simulate the signals based on the patterns set up by users,and has excellent performance during the test.The result shows the approach has strong versatility and adaptability for a variety of communication applications.
出处 《计算机测量与控制》 2015年第11期3879-3881,3903,共4页 Computer Measurement &Control
关键词 模拟器 串行通信 可编程接口 simulator serial communication programmable I/O interface
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  • 1吴刚,庞彦斌.地震监测网络传感器系统的设计及其通信协议的实现[J].北京化工大学学报(自然科学版),2005,32(4):94-96. 被引量:4
  • 2韩红霞,曹立华,刘帅师.基于FPGA的光纤通信系统中帧同步头检测设计[J].电光与控制,2006,13(4):90-92. 被引量:6
  • 3杨嘉伟,董胜波,张立东.用PLD构成高速RS—485同步总线接口[J].系统工程与电子技术,1996,18(10):18-27. 被引量:3
  • 4Stetan Sjoholm 边计年等(译).用VHDL设计电子线路[M].北京:清华大学出版社,2000..
  • 5NI Haiyan, HU Chao, MA Changwang. Research on a 485-serial network architecture in intelligent uptown management[C]// Proc 2006 IEEE Conf on Mechatronics and Automation. Luoyang : IEEE Press, 2006 : 400 - 405.
  • 6Costa L, Fernandes J. On-line control systems using RS485 [C]// ISA TECH/EXPO Technology Update Conf Proc. Houston: Instrument Society of America, 2001:695 -700.
  • 7Anon. Fieldbus wars continue [J]. Control (Chicago Ⅱ ), 2006, 19(7): 36-44.
  • 8B&B Electronics Mfg. Co. Inc. RS-422 and RS-485 Application Note [EB/OL]. [2008-01-03]. http://www. bb-elec.com/bb-elec/literature/tech/485appnote. pdf.
  • 9Ozcelik I, Ekiz H. Building an interconnection between PROFIBUS and ATM networks [J]. J Network and Compu Appl, 2007, 30(2) : 800- 817.
  • 10XU Jun, FENG Yanjun. Profibus automation technology and its application in DP slave development [C]// Proc of Conf on Information Acquisition. Hefei: IEEE Press, 2004: 155 - 159.

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