HUSTRING, a local area network named after the Harbin University of Science and Technology, uses a combination of token-passing approach and register insertion technology as its medium access control mechanism. The re...HUSTRING, a local area network named after the Harbin University of Science and Technology, uses a combination of token-passing approach and register insertion technology as its medium access control mechanism. The results of theoretical analysis and computer simulation indicate that the real-time performance of the HUSTRING is much better than that of the well-known token-ring local area network.The network topology of the HUSTRING, the architecture of its physical layer, medium access layer and logic link layer and the configuration of its ring interface are describedand its performance is compared with the token ring local area network.展开更多
文摘HUSTRING, a local area network named after the Harbin University of Science and Technology, uses a combination of token-passing approach and register insertion technology as its medium access control mechanism. The results of theoretical analysis and computer simulation indicate that the real-time performance of the HUSTRING is much better than that of the well-known token-ring local area network.The network topology of the HUSTRING, the architecture of its physical layer, medium access layer and logic link layer and the configuration of its ring interface are describedand its performance is compared with the token ring local area network.
文摘为应对工业无线测控需要而提出的单跳令牌环网受无线模块通信距离限制,无法满足实际工业应用需求。为了延长通信距离,扩大令牌环网应用范围,提出一种在基于原令牌环协议的基础上挂接主从的两层无线监控网络WICN-TL(Wireless Indus-trial Control Network-Two Layers),介绍了其协议模型的拓扑结构及通信流程,将该协议在基于IEEE802.15.4a的硬件平台NanoNET上加以实现,并接入PROFIBUS-DP现场总线系统,在某污水处理厂进行了实地测试。测试结果表明,该协议具有良好的通信能力和较大的覆盖范围,能够适应工业环境的应用需要。
