This paper addresses the ultimate boundedness control problem for a class of networked nonlinear systems with the round-robin(RR)protocol and uniform quantisation.The communication between sensor nodes and the control...This paper addresses the ultimate boundedness control problem for a class of networked nonlinear systems with the round-robin(RR)protocol and uniform quantisation.The communication between sensor nodes and the controller is implemented via a constrained communication channel.The quantised output of the system is transmitted to the remote controller through a communication channel subject to a transmission delay.For the purpose of alleviating possible data collision,the well-known RR communication protocol is deployed to schedule the data transmissions.On the other hand,the uniform quantisation effects of the network are characterised by a round function(i.e.the nearest integer function).The purpose of the addressed problem is to design an observer-based controller for the networked nonlinear systems such that,in the presence of RR protocol and uniform quantisation effects,the closed-loop system is ultimately bounded.The controller is designed based on mean square stability analysis and Lyapunov-like method.A set of sufficient conditions for the ultimate boundedness of the closed-loop system are established and,on the basis of which,the desired controller gains are obtained by solving a set of linear matrix inequalities.The effectiveness of the proposed method is verified by numerical examples.展开更多
针对局域内网单台计算机下载外网资源速度慢的问题,本文以Petri网为系统逻辑设计工具,提出一种基于P2P(Peer to Peer)分布式结构的外网带宽共享协议。该协议指定内网多台计算机在外网下载所需文件的不同片段,再由局域内网传输给任务发...针对局域内网单台计算机下载外网资源速度慢的问题,本文以Petri网为系统逻辑设计工具,提出一种基于P2P(Peer to Peer)分布式结构的外网带宽共享协议。该协议指定内网多台计算机在外网下载所需文件的不同片段,再由局域内网传输给任务发起者所属计算机进行原文件整合。协议充分利用多台计算机的并行下载能力以及局域内网的快速传输能力,从逻辑层面提高了单台计算机的下行带宽。本文进一步通过基于Petri网的可达标志图,S_不变量和流程图方法对协议的逻辑正确性和行为许可性进行了验证。展开更多
基金supported in part by the National Natural Science Foundation of China under Grants 62173079 and U1808205the Science and Technology Program of Gansu Province under Grant 21ZD4GA028.
文摘This paper addresses the ultimate boundedness control problem for a class of networked nonlinear systems with the round-robin(RR)protocol and uniform quantisation.The communication between sensor nodes and the controller is implemented via a constrained communication channel.The quantised output of the system is transmitted to the remote controller through a communication channel subject to a transmission delay.For the purpose of alleviating possible data collision,the well-known RR communication protocol is deployed to schedule the data transmissions.On the other hand,the uniform quantisation effects of the network are characterised by a round function(i.e.the nearest integer function).The purpose of the addressed problem is to design an observer-based controller for the networked nonlinear systems such that,in the presence of RR protocol and uniform quantisation effects,the closed-loop system is ultimately bounded.The controller is designed based on mean square stability analysis and Lyapunov-like method.A set of sufficient conditions for the ultimate boundedness of the closed-loop system are established and,on the basis of which,the desired controller gains are obtained by solving a set of linear matrix inequalities.The effectiveness of the proposed method is verified by numerical examples.
基金国家自然科学基金(the National Natural Science Foundation of China under Grant No.60673162)北京自然科学基金(the Natural Science Foundation of Beijing of China under Grant No.4073041)
文摘针对局域内网单台计算机下载外网资源速度慢的问题,本文以Petri网为系统逻辑设计工具,提出一种基于P2P(Peer to Peer)分布式结构的外网带宽共享协议。该协议指定内网多台计算机在外网下载所需文件的不同片段,再由局域内网传输给任务发起者所属计算机进行原文件整合。协议充分利用多台计算机的并行下载能力以及局域内网的快速传输能力,从逻辑层面提高了单台计算机的下行带宽。本文进一步通过基于Petri网的可达标志图,S_不变量和流程图方法对协议的逻辑正确性和行为许可性进行了验证。
