Results 21 to 30 of about 153,439 (296)

Faulty sensor detection using data correlation of multivariant sensor reading in smart agriculture with IOT [PDF]

open access: yes, 2019
The Internet of Things (IoT), the idea of getting real-world objects connected with each other, will change the ways we organize, obtain and consume information radically.
Malik, Ahmed Dhahir
core   +1 more source

Sensor Fault Diagnosis and Fault Tolerant Control for Automated Guided Forklift

open access: yesIEEE Access, 2021
For the problem of multiple sensor faults in the automated guided forklift (AGF), an equivalent model with system faults and disturbances is established. To detect multiple sensor faults in the AGF, a sliding mode observer (SMO) is proposed.
Hanguo Kang   +6 more
doaj   +1 more source

Research on Convolutional Neural Network Model for Sonar IMAGE Segmentation

open access: yesMATEC Web of Conferences, 2018
The speckle noise of sonar images affects the human interpretation and automatic recognition of images seriously. It is important and difficult to realize the precision segmentation of sonar image with speckle noise in the field of image processing. Full
Jiao Shengxi, Zhao Chunyu, Xin Ye
doaj   +1 more source

A Method to Simultaneously Detect the Current Sensor Fault and Estimate the State of Energy for Batteries in Electric Vehicles

open access: yesSensors, 2016
Recently, State of energy (SOE) has become one of the most fundamental parameters for battery management systems in electric vehicles. However, current information is critical in SOE estimation and current sensor is usually utilized to obtain the latest ...
Jun Xu   +3 more
doaj   +1 more source

Dynamic Calibration Method of Sensor Drift Fault in HVAC System Based on Bayesian Inference

open access: yesSensors, 2022
Sensor drift fault calibration is essential to maintain the operation of heating, ventilation and air conditioning systems (HVAC) in buildings. Bayesian inference (BI) is becoming more and more popular as a commonly used sensor fault calibration method ...
Guannan Li   +3 more
doaj   +1 more source

A semidefinite relaxation procedure for fault-tolerant observer design [PDF]

open access: yes, 2015
A fault-tolerant observer design methodology is proposed. The aim is to guarantee a minimum level of closed-loop performance under all possible sensor fault combinations while optimizing performance under the nominal, fault-free condition.
Chaudhuri, B   +3 more
core   +1 more source

Fault Reconnaissance Agent for Sensor Networks [PDF]

open access: yesMobile Information Systems, 2010
One of the key prerequisite for a scalable, effective and efficient sensor network is the utilization of low-cost, low-overhead and high-resilient fault-inference techniques. To this end, we propose an intelligent agent system with a problem solving capability to address the issue of fault inference in sensor network environments. The intelligent agent
Elhadi M. Shakshuki   +2 more
openaire   +1 more source

Sensor Fault Detection and Fault-Tolerant Control for Buck Converter via Affine Switched Systems

open access: yesIEEE Access, 2019
The main purpose of this paper is to study the problem of the sensor fault detection and fault-tolerant control for DC-DC buck converter via affine switched systems.
Jian Li   +3 more
doaj   +1 more source

Sensor Fault Reconstruction based on Adaptive Sliding Mode Observer for Forklift Fault-Tolerant Control System

open access: yesApplied Sciences, 2020
For the problem of multiple sensor fault detection and reconstruction in the forklift fault-tolerant control system, a sliding mode observer (SMO) with adaptive regulation law is proposed. Based on the three-degree-of-freedom (3-DOF) model of forklift, a
Zhilu Zhang, Benxian Xiao
doaj   +1 more source

Fault-accommodation with intelligent sensors

open access: yesAutomatica, 2003
Means of accommodating sensor faults (modelled as an increase in the bounds of additive uncorrelated noise) are considered for systems with one input and one primary and several auxiliary outputs. The noise is assumed to be bounded and having unknown probabilistic properties. A controller is designed minimizing the bounds of the effect of faults on the
Tortora, G, Kouvaritakis, B, Clarke, D
openaire   +3 more sources

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