摘要
随着网络技术和无线移动通信技术日趋成熟,无线移动网络在控制系统中的应用也成为研究热点。无线移动NCS是一个崭新的研究领域,由于传输介质是无线移动通信网络,节点之间的数据通信的时间问题(如时间同步和时延等)是控制系统实现和运行稳定的主要影响因素。针对无线移动NCS的特点,作者在重点归纳现有的各种时间同步机制和算法的基础上,利用对时间同步协议和GPS机制以及mini-sync与tiny-sync算法等的研究,提出了适合无线移动NCS的传感器-控制器、控制器-执行器以及多输入多输出节点的数据传输同步机制,包括多传感器和多执行器操作的同步操作等。不同需求环境下的各种同步机制的建模分析和优化设计,为无线移动NCS的时间同步机制设计和分析提供了理论依据。
With the development and maturity of network and wireless communication technology, the study of wireless mobile network application in control systems is becoming a hotspot. Wireless mobile NCS （Networked Control Systems） is a virgin study field. Because the transmission media is wireless in the network, time problem, such as time synchronous and time delay, in data communication between nodes become main affect factors in control systems realization and operating stabilization, According to the characteristics of wireless mobile NCS, the writer put forward a data transmission synchronous mechanism for wireless mobile NCS at sensorcontroller and controller-actuator, multi nodes input and multi output synchronous data transmission, including multi sensors and multi actuators synchronous control, by means of time synchronous protocol, GPS mechanism, mini-sync and tiny-sync algorithms, after concluding lots of existed time synchronous mechanisms and algorithms. Modeling and optimal design analysis in different required synchronous mechanisms environment provides important theoretical basis for time synchronous mechanism design and analysis of wireless mobile NCS.
出处
《微计算机信息》
北大核心
2007年第24期118-120,共3页
Control & Automation
基金
湖北省教育基金(2004D003)
国家自然科学基金(2004ABA076)资助
关键词
无线移动网络
NCS
时间同步机制
wireless mobile network, NCS （Networked Control Systems）, time synchronous mechanism.
