搜索结果: 46-60 共查到“工学 Fault”相关记录82条 . 查询时间(0.107 秒)
Decentralized Fault Diagnosis of Large-Scale Processes Using Multiblock Kernel Principal Component Analysis
Multiblock kernel methods Nonlinear Component Analysis Process Monitoring Fault detection
2009/9/9
In this paper, a multiblock kernel principal component analysis (MBKPCA) algorithm is proposed. Then a new fault detection and diagnosis approach based on MBKPCA is proposed to monitor large-scale pro...
Fault-Tolerant Control of a Distributed Database System
Fault-Tolerant Control Distributed Database System
2009/9/7
Optimal state information-based control policy for a distributed database system subject to server failures is considered. Fault-tolerance is made possible by the partitioned architecture of the syste...
Reliability Monitoring of Fault Tolerant Control Systems with Demonstration on an Aircraft Model
Reliability Monitoring Fault Tolerant Control Systems Demonstration Aircraft Model
2009/9/7
This paper proposes a reliability monitoring scheme for active fault tolerant control systems using a stochastic modeling method. The reliability index is defined based on system dynamical responses a...
A Method for Designing Fault Diagnosis Filters for LPV Polytopic Systems
Method Designing Fault Diagnosis Filters LPV Polytopic Systems
2009/9/7
The work presented in this paper focuses on the design of robust Fault Detection and Isolation (FDI) filters for dynamic systems characterized by LPV (Linear Parameter Varying) polytopic models. A suf...
Optimal Robust Fault Detection for Linear Discrete Time Systems
Optimal Robust Fault Detection Linear Discrete Time Systems
2009/9/7
This paper considers robust fault-detection problems for linear discrete time systems. It is shown that the optimal robust detection filters for several well-recognized robust fault-detection problems...
Actuator Fault Diagnosis with Robustness to Sensor Distortion
Actuator Fault Diagnosis Robustness Sensor Distortion
2009/9/7
Actuator fault diagnosis is often studied under strong assumptions on available sensors. Typically, it is assumed that the sensors are either fault free or sufficiently redundant. The purpose of this ...
On Fault Detection in Linear Discrete-Time, Periodic, and Sampled-Data Systems
Fault Detection Linear Discrete-Time Periodic Sampled-Data Systems
2009/9/7
This paper gives a review of some standard fault-detection (FD) problem formulations in discrete linear time-invariant systems and the available solutions. Based on it, recent development of FD in per...
Computation of a Reference Model for Robust Fault Detection and Isolation Residual Generation
Reference Model Robust Fault Detection Isolation Residual Generation
2009/9/7
This paper considers matrix inequality procedures to address the robust fault detection and isolation (FDI) problem for linear time-invariant systems subject to disturbances, faults, and polytopic or ...
Fault Detection, Isolation, and Accommodation for LTI Systems Based on GIMC Structure
Fault Detection Isolation Accommodation LTI Systems Based GIMC Structure
2009/9/7
In this contribution, an active fault-tolerant scheme that achieves fault detection, isolation, and accommodation is developed for LTI systems. Faults and perturbations are considered as additive sign...
Stability Guaranteed Active Fault-Tolerant Control of Networked Control Systems
Stability Guaranteed Active Fault-Tolerant Control Networked Control Systems
2009/9/7
The stability guaranteed active fault-tolerant control against actuators failures and plant uncertainties in networked control systems (NCSs) is addressed. A detailed design procedure is formulated as...
Design and Assessment of a Multiple Sensor Fault Tolerant Robust Control System
Multiple Sensor Fault Tolerant Robust Control System
2009/9/7
This paper presents an enhanced robust control design structure to realise fault tolerance towards sensor faults suitable for multi-input-multi-output (MIMO) systems implementation. The proposed desig...
Design and Analysis of Robust Fault Diagnosis Schemes for a Simulated Aircraft Model
Robust Fault Diagnosis Schemes Simulated Aircraft Model
2009/9/7
Several procedures for sensor fault detection and isolation (FDI) applied to a simulated model of a commercial aircraft are presented. The main contributions of the paper are related to the design and...
Robustness Issues in Fault Diagnosis and Fault Tolerant Control
Robustness Issues Fault Diagnosis Fault Tolerant Control
2009/9/7
Fault diagnosis and fault tolerant control have become critically important in modern complex systems such as aircrafts and petrochemical plants. Since no system in the real world can work perfectly a...
Fault Tolerant Control With Re-Configuring Sliding-Mode Schemes
Fault detection fault-tolerant systems sliding-mode control
2009/7/28
In this paper, a controller design method for linear MIMO systems is presented which a sliding mode controller is reconfigured in case of system faults. Faults are detected with the residual vector ge...
基于时空双序列分析的温室WSN故障诊断（Fault Diagnosis of the Greenhouse WSN Based on the Time Series and Space Series Analysis）
温室 无线传感器网络 时间序列
2009/5/22
根据温室无线传感器网络（WSN）所采集数据在时间和空间上具有很强的相关性，从温室无线传感器网络基本结构出发，在分析WSN原始数据的基础上，通过对时空序列样本信息的预处理，分别建立了时间和空间故障诊断数学模型，据此分析传感节点的工作状态，给出了温室WSN故障诊断的综合算法。研究结果表明，该故障诊断方法能够及时、有效地发现温室WSN的异常并诊断出故障节点，提高了WSN工作的可靠性。