This paper is concerned with the protocol-based fault detection (FD) issue for state-saturated delayed nonlinear systems with both redundant channels and sensor nonlinearities. Specifically, in pursuit of relieving the communication pressure, the stochastic communication protocol is adopted, which can regulate the transmission of output signal during the communication process. Moreover, for the purpose of decreasing the negative impact of one channel failure on network communication and enhancing data reliability, the redundant channels transmission is introduced. Then, the protocol-based FD filter is constructed such that the resultant FD dynamics system attains the global asymptotic stability in mean-square sense and satisfies the performance index. Moreover, an implement-to-easy algorithm is developed to facilitate the solvability of the desirable FD filtering method. In the end, two illustrative examples are utilized to demonstrate the validity of the developed FD filtering algorithm.

中文翻译：

---

针对具有传感器非线性和冗余通道的状态饱和系统的基于协议的故障检测

本文关注的是具有冗余通道和传感器非线性的状态饱和延迟非线性系统的基于协议的故障检测（FD）问题。具体来说，为了缓解通信压力，采用随机通信协议，可以在通信过程中调节输出信号的传输。此外，为了减少某一通道故障对网络通信的负面影响，提高数据的可靠性，引入了冗余通道传输。然后，构建基于协议的FD滤波器，使得所得的FD动力学系统在均方意义上达到全局渐近稳定性并满足性能指标。此外，还开发了一种易于实现的算法，以促进所需 FD 滤波方法的求解。最后，利用两个说明性例子来证明所开发的FD滤波算法的有效性。