نتایج جستجو برای: actuator and sensor failure

تعداد نتایج: 16919551  

2013
Tino Brade Sebastian Zug Jörg Kaiser

Modern sensor-actuator applications combine a large number of components (sensing devices, processing nodes, networks) and implementing complex interactions between them. Due to failures and other sensor inherent insufficiencies the intended control function is adversely affected. This cannot be tolerated in safety critical applications. In some cases replication and voting may be possible. But...

2010
Dražen Slišković Ratko Grbić Željko Hocenski

Process safety and environment pollution demands are continuously increasing in the process industry. Apart from that, requirements regarding final product quality and production efficiency are higher and higher [1]. This can be achieved by applying advanced process monitoring and control techniques. Process control is heavily dependent on the quality of the data, so it is crucial to measure as...

2009
Robert Jeffrey Pascal David W. Miller ROBERT JEFFREY

The use of a high-fidelity finite element model is investigated for the design and closedloop performance prediction of shaped and distributed sensors and actuators for structural acoustic control. Sensor and actuator design was found to be sensitive to nodeline discrepancies between the model and experiment caused by moderate manufacturing defects and/or boundary condition uncertainties. Relyi...

2008
Diego Martínez Francisco Blanes José Simo Alfons Crespo

Nowadays developments in Wireless Sensor and Actuators Networks (WSAN) applications are determined by the fulfillment of constraints imposed by the application. For this reason, in this work a characterization of WSAN applications in health, environmental, agricultural and industrial sectors are presented. A case study for detecting heart arrhythmias in non-critical patients during rehabilitati...

Journal: :Computers & Chemical Engineering 2012
Guosong Tian Feng Xia Yu-Chu Tian

Networked control systems (NCSs) offer many advantages over conventional control; however, they also demonstrate challenging problems such as network-induced delay and packet losses. This paper proposes an approach of predictive compensation for simultaneous networkinduced delays and packet losses. Different from the majority of existing NCS control methods, the proposed approach addresses co-d...

2000
Mark N. Horenstein Julie A. Perreault Thomas G. Bifano

Ž . A capacitive sensor has been developed for measuring the vertical deflection of bridge-type micro-electromechanical MEMS silicon actuators. The sensor requires no electrodes above the actuator surface and does not require the actuator diaphragm to be used as a signal electrode. Sets of interdigitated electrodes, one for ac signal injection and the other for signal sensing, are placed beneat...

2006
Muhammad Farukh Munir Fethi Filali

Sensor-actuator networks are often limited in battery capacity and processing power. Therefore, it is exigent to develop solutions that are both energy and delay efficient. In this paper, we propose a low-energy and delay-sensitive TDMA based MAC for wireless sensor-actuator networks (WSANs). These networks are organized into clusters and each cluster is managed by a single actuator. To avoid i...

Journal: :International Journal of Distributed Sensor Networks 2005

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید