Event-triggered networked fault detection for positive Markovian systems

Event-triggered networked fault detection for positive Markovian systems
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正马尔可夫系统的事件触发网络故障检测

DOI:
10.1016/j.sigpro.2018.11.014
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发表时间:
2019-04
期刊:
影响因子:
4.4
通讯作者:
Zhang Baoyong
Zhang Baoyong
中科院分区:
工程技术2区
文献类型:
--
作者:
Xiao Shunyuan;Zhang Yijun;Zhang Baoyong

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研究了具有马尔可夫参数的正系统的事件触发网络故障检测问题。提出了一种动态线性事件触发方案,以限制通信信道中的传输数据量。考虑到网络诱导时延的影响,将网络故障检测滤波器设计成一个正马尔可夫跳变系统,对故障信号进行检测。考虑了系统的增益特性,研究了系统的干扰抑制问题。利用线性李雅普诺夫函数方法,给出了该问题可解性的判据。提出的事件触发条件和所需的故障检测滤波器的参数可以通过求解得到的线性规划(LP)问题进一步确定。最后通过两个算例验证了理论结果的有效性。
The problem of event-triggered networked fault detection for positive systems with Markovian parameters is investigated in this paper. A dynamic linear event-triggered scheme is proposed to limit the quantity of the transmitted data in the communication channel. With the consideration of network-induced delays, a networked fault detection filter is designed as a positive Markov jump system to detect the fault signal. ℓ1-gain performance is taken into account to study the disturbance attenuation. Through linear Lyapunov function method, the criteria for the solvability of the concerned problem are presented. The parameters of proposed event-triggered condition and desired fault detection filter can be further determined through solving obtained linear programming (LP) problems. Two illustrative examples are given to demonstrate the effectiveness of the theoretical results.
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