Design of Event-Triggered Fault-Tolerant Control for Stochastic Systems with Time-Delays

Gao, Yi; Li, Yunji; Liu, Junyu

doi:10.3390/s18061929

Cited by 7 publications

(6 citation statements)

References 31 publications

(35 reference statements)

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“…It should be pointed out that reducing the number of actuator updates may be preferable for some practical applications where some embedded processors with limited resources are employed [ 28 , 29 , 30 , 31 , 32 , 33 , 34 ]. Clearly, the above finite-time consensus control schemes need to continuously update control signals and cannot provide any support for this case.…”

Section: Related Workmentioning

confidence: 99%

Event-Based Communication and Finite-Time Consensus Control of Mobile Sensor Networks for Environmental Monitoring

2018

Sensors

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This paper deals with the problem of environmental monitoring by designing a cooperative control scheme for mobile sensor networks. The proposed cooperative control scheme includes three main modules: a wireless communication module, a direction decision module, and a motion control module. In the wireless communication module, an event-based communication rule is proposed, which means that mobile sensor nodes do not send their positions, velocities, and the data of environmental attributes to the other sensor nodes in real-time for the coordination and control of mobile sensor networks. Due to using the event-based communication rule, the communication bandwidth can be saved. In the direction decision module, a radial basis function network is used to model the monitored environment and is updated in terms of the sampled environmental data and the environmental data from the other sensor nodes by the wireless communication module. The updated environment model is used to guide the mobile sensor network to move towards the region of interest in order to efficiently model the distribution map of environmental attributes, such as temperature, salinity, and pH values for the monitored environment. In the motion control module, a finite-time consensus control approach is proposed to enable the sensor nodes to quickly change their movement directions in light of the gradient information from the environment model. As a result of using the event-based communication rule in the wireless communication module, the proposed control approach can also lower the updating times of the control signal. In particular, the proposed cooperative control scheme is still efficient under the directed wireless communication situation. Finally, the effectiveness of the proposed cooperative control scheme is illustrated for the problem of environmental monitoring.

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Section: Related Workmentioning

confidence: 99%

Event-Based Communication and Finite-Time Consensus Control of Mobile Sensor Networks for Environmental Monitoring

2018

Sensors

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“…An output estimation error-based scheme with a switching Kalman filter is proposed in [22] as a new framework for event-triggered state estimation. Two different event conditions for fault-tolerant control are studied in [23] in terms of the system state and the system state error, respectively. A great deal of research progress has been made (see [24][25][26][27][28][29][30] and the references therein).…”

Section: Related Workmentioning

confidence: 99%

An Event-Triggered Fault Detection Approach in Cyber-Physical Systems with Sensor Nonlinearities and Deception Attacks

Liu

2018

Electronics

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In this paper, a general event-triggered framework is constructed to investigate the problem of remote fault detection for stochastic cyber-physical systems subject to the additive disturbances, sensor nonlinearities and deception attacks. Both fault-detection residual generation and evaluation module are fully described. Two energy norm indices are presented so that the fault-detection residual has the best sensitivity to faults and the best robustness to unwanted factors including additive disturbances and false information injected by attacker. Moreover, the filter gain and residual weighting matrix are formulated in terms of stochastic Lyapunov function, which can be conveniently solved via standard numerical software. Finally, an application example is presented to verify the performance of fault detection by comparative simulations. The prolonged battery life is experimentally evaluated and analyzed via a wireless node platform.

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“…Because actuator faults can also lead to poor performance of the closed-loop systems and sometimes destabilizes the systems [13,14]. Recently, a host of characters have paid attention to the study of various control problem of NCSs with actuator faults [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Passive Fault-Tolerant Control for NCSs Using Event-Triggered Approach

Shi

2023

IEEE Access

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In this paper, the passive event-triggered control problem for networked control systems with actuator faults is of concern. A sufficient condition is proposed by a Lyapunov-Krasovskii functional, under which such type continuous-time Networked control systems with actuator faults are asymptotically stable and passive. The designing method of controller is developed by using Wirtinger inequality and linear matrix inequalities (LMIs). The given strategy can reduce the number of transmissions, thus saving the communication resources. Finally, two numerical examples are provided to demonstrate the effectiveness of the proposed method.INDEX TERMS Passive fault-tolerant control, Event-triggered approach, Networked control systems, Linear matrix inequalities (LMIs).

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Design of Event-Triggered Fault-Tolerant Control for Stochastic Systems with Time-Delays

Cited by 7 publications

References 31 publications

Event-Based Communication and Finite-Time Consensus Control of Mobile Sensor Networks for Environmental Monitoring

Event-Based Communication and Finite-Time Consensus Control of Mobile Sensor Networks for Environmental Monitoring

An Event-Triggered Fault Detection Approach in Cyber-Physical Systems with Sensor Nonlinearities and Deception Attacks

Passive Fault-Tolerant Control for NCSs Using Event-Triggered Approach

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