This paper considers the problem of attitude sensor fault diagnosis in a quadrotor helicopter. The proposed approach is composed of two stages. The first one is the modelling of the system attitude dynamics taking into account the induced communication constraints. Then a robust fault detection and evaluation scheme is proposed using a post-filter designed under a particular design objective. T...

The deployment scenarios for sensor networks are often hostile. These networks also have to operate unattended for long periods. Therefore, fault-tolerance mechanisms are needed to protect these networks from various faults such as node failure due to loss of power, compromise, etc and link failure due to network intrusion, etc. A number of fault-tolerance techniques have been developed specifi...

This paper introduces MACH-FTDC (Multihop Alternate Cluster Head Fault Tolerant – Dynamic Clustering) protocol for wireless sensor network that provides fault tolerance as well as reduced data loss with mobility as compared to the existing FT-DSC protocol. It introduces mobility which is important to some of the real world applications. This protocol does tradeoff between sensor node energy and...

The performance of electronic vehicle PHM relies not only on the diagnostic and prognostic algorithms used, but also on the types, location, and number of sensors selected. The paper firstly presents the architecture for PHM. Sensor localization and selection for fault diagnostic purposes is the importance part. It introduces the new sensor approach for PHM, such as smart sensor. Sensor localiz...

This article addresses the behavioral characteristics of faults, errors and failures in wireless sensor network. Viable usage of compact limited resource constrained microsensors for advance deployment tends to face more challenges during the execution of various event handling and this action reflects to obtain deviated result from reaching the targeted goals. Achieving the targeted goals beyo...

In this paper we address the management of sensor faults in an intelligent environment. Our proposed approach aims to introduce self-healing as a method of fault management. This approach is based on the use of adaptive finite state machine automata which handle suspicious sensor behavior. These state machines communicate with a mobile robot which investigates the error states detected through ...

In this paper, a synthesized design of fault-detection filter and fault estimator is considered for a class of discrete-time stochastic systems in the framework of event-triggered transmission scheme subject to unknown disturbances and deception attacks. A random variable obeying the Bernoulli distribution is employed to characterize the phenomena of the randomly occurring deception attacks. To...

This paper introduces a new maximum fault-tolerance barrier-coverage problem in hybrid sensor network, which consists of a number of both static ground sensors and fully-controllable mobile sensors. The problem aims to relocate the mobile sensor nodes so that the fault-tolerance of the barriercoverage of the hybrid sensor network is maximized. The main contribution of this paper is the polynomi...

Modern day personal navigation devices are often realized as a multi-sensor integrated navigation system wherein the measurements from various sensors are combined to generate a navigation solution. A fault occurring in any of these sensors can affect the performance of the navigation system, potentially compromising the reliability of the navigation solution. It is thus imperative to detect an...