Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
}
TY - GEN
T1 - Move from Online Test to Fault-tolerant: Design and Simulation of a Multi-Functional MEMS Sensor
AU - Xu, Zhou
AU - Richardson, Andrew
AU - Begbie, Mark
AU - Wang, Changhai
PY - 2011/5/16
Y1 - 2011/5/16
N2 - Fault-tolerance is an important design requirement in critical sensor applications. It is conventionally achieved by using redundant components, which increases system’s size, cost and complexity, that are often sacrificed or comprised due to associated limitations. This paper proposes a novel solution to achieve sensor fault-tolerance at the system level instead of the usual approach that targets the component level. The architecture consists of multi-functional sensors which are used to replace conventional single mode sensors, and a data fusion algorithm which provides online test and fault-tolerance. This method has the potential to significantly increase system reliability and supports a reduction in the overheads inherent with the use of redundancy in fault-tolerant systems. A MEMS humidity/pressure sensor has been designed as an example to support the method. The sensor has simple structure, good linearity and sensitivity, and the potential of further integrating a temperature function.
AB - Fault-tolerance is an important design requirement in critical sensor applications. It is conventionally achieved by using redundant components, which increases system’s size, cost and complexity, that are often sacrificed or comprised due to associated limitations. This paper proposes a novel solution to achieve sensor fault-tolerance at the system level instead of the usual approach that targets the component level. The architecture consists of multi-functional sensors which are used to replace conventional single mode sensors, and a data fusion algorithm which provides online test and fault-tolerance. This method has the potential to significantly increase system reliability and supports a reduction in the overheads inherent with the use of redundancy in fault-tolerant systems. A MEMS humidity/pressure sensor has been designed as an example to support the method. The sensor has simple structure, good linearity and sensitivity, and the potential of further integrating a temperature function.
KW - fault-tolerance
KW - online test
KW - multi-mode sensing
KW - multi-functional sensor
KW - MEMS
KW - humidity sensor
KW - pressure sensor
KW - health and usage monitoring
M3 - Conference contribution/Paper
SN - 978-1-4577-1144-2
SP - 88
EP - 95
BT - Proceedings of the IEEE International Mixed Signals, Sensors and Systems Test Workshop
PB - IEEE COMPUTER SOC
CY - USA
T2 - 17th IEEE International Mixed-Signals, Sensors and Systems Test Workshop
Y2 - 16 May 2011 through 18 May 2011
ER -