具有数据包丢失及多包传输的网络控制系统稳定性  

Stability of networked control systems with data packet dropout and multiple-packet transmission

作　　者：孙海燕[1] 侯朝桢[1] 

机构地区：[1]北京理工大学自动控制系,北京100081

出　　处：《控制与决策》2005年第5期511-515,共5页Control and Decision

基　　金：国防预研基金项目.

摘　　要：在分析网络数据包丢失和多包传输原因的基础上,研究存在数据包丢失和多包传输的网络控制系统稳定性问题.根据网络数据包丢失模型,提出了信号传输成功率应满足的系统指数稳定性条件,并依据具有事件概率限制的异步动态系统理论建立了多包传输网络控制系统模型,给出了判定系统指数稳定性的充分条件.仿真示例验证了上述判定系统稳定性条件的有效性.The stability problems of networked control systems (NCS) with data packet dropout and with multiple-packet transmission are discussed based on analyzing the reasons for data packet dropout and multiple-packet transmission in network. The system exponentially stable condition that must be satisfied by the signal transmission rate is proposed depending on the data packet dropout model. An NCS with multiple-packet transmission is modeled according to the theory of an asynchronous dynamical system with rate constraints on events, and the sufficient condition for judging system exponential stability is obtained. The simulation example shows the effectiveness of the system stability conditions.

关 键 词：网络控制系统 异步动态系统 数据包丢失 多包传输 指数稳定 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]