Wireless Sensor Actuator Networks (WSANs) have shown its advantages of flexibility and cable-free deployment in industrial applications. However, the sensors explore directly to the harsh environment and are the most prone to faults and malfunctioning, which poses a big challenge to the WSAN's applicability in applications with high safety requirements. This paper focuses on highly reliable WSANs equipped with double-sensing system and proposes a model-based on-line sensor fault detection scheme by exploiting information redundancy between sensors and actuators. An optimization method is developed to make the proposed scheme robust to the largely fluctuating end-to-end packet transmission delays due to wireless communications. The performance of the proposed sensor fault detection scheme is demonstrated by the simulation of a pick and place robot.
|Title of host publication||Proceedings of the 2015 IEEE 13th International Conference on Industrial Informatics (INDIN)|
|Place of Publication||Piscataway, NJ|
|Publication status||Published - 2015|
|Event||2015 IEEE 13th International Conference on Industrial Informatics (INDIN) - Cambridge|
Duration: 1 Jan 2015 → …
|Conference||2015 IEEE 13th International Conference on Industrial Informatics (INDIN)|
|Period||1/01/15 → …|