| 摘要: |
| 为了解决实时控制网络应用中的通讯实时性和确定性问题,提出在总线以太网上实现一种CSMA/CD-Master/Slave切换混合协议,并在其上构建UDP/IP协议,同时对该混合协议的实时性和可靠性进行计算机仿真分析。在实时控制网络应用中,当网络轻载时,采用CSMA/CD访问控制方式;当网络重载时,自动切换到Master/Slave方式,实现自动调节达到对介质的有限争用。仿真表明CSMA/CD-Master/Slave切换混合协议的应用能够提高通讯实时性和可靠性,可以保证控制网络的稳定性和实效性。 |
| 关键词: TCP/IP协议 CSMA/CD Master/Slave 协议改进 |
| DOI： |
| 投稿时间：2007-05-24 |
| 基金项目: |
|
| An Improvement of Control Protocol Ameliorating Based on Ethernet Bus |
|
NONG Yi1, PENG Ke2
|
| (1.School of Management, Guilin University of Electronic Technology, Guilin, Guangxi, 541004, China;2.School of Engineering, Hunan Normal University, Changsha, Hunan, 410081, China) |
| Abstract: |
| In order to solve the problems of real-time communication and determinacy in real-time control network, the article put forward a kind of hybrid handoff protocol of CSMA/CD and Master/Slave according to loading variation influence real-time and certain control in the Ethernet bus control. The article also established the UDP/IP protocol on the basis of hybrid handoff protocol of CSMA/CD and Master/Slave. The result of simulation shows that the UDP/IP protocol can increase the real-time and reliability of communication, which is valuable in the computer network control. |
| Key words: TCP/IP protocols CSMA/CD Master/Slave protocol ameliorating |
