Visible to the public Biblio

Filters: Author is Guo, J.  [Clear All Filters]
2019-08-05
Ma, S., Zeng, S., Guo, J..  2018.  Research on Trust Degree Model of Fault Alarms Based on Neural Network. 2018 12th International Conference on Reliability, Maintainability, and Safety (ICRMS). :73-77.

False alarm and miss are two general kinds of alarm errors and they can decrease operator's trust in the alarm system. Specifically, there are two different forms of trust in such systems, represented by two kinds of responses to alarms in this research. One is compliance and the other is reliance. Besides false alarm and miss, the two responses are differentially affected by properties of the alarm system, situational factors or operator factors. However, most of the existing studies have qualitatively analyzed the relationship between a single variable and the two responses. In this research, all available experimental studies are identified through database searches using keyword "compliance and reliance" without restriction on year of publication to December 2017. Six relevant studies and fifty-two sets of key data are obtained as the data base of this research. Furthermore, neural network is adopted as a tool to establish the quantitative relationship between multiple factors and the two forms of trust, respectively. The result will be of great significance to further study the influence of human decision making on the overall fault detection rate and the false alarm rate of the human machine system.

2017-12-28
Guo, J., Li, Z..  2017.  A Mean-Covariance Decomposition Modeling Method for Battery Capacity Prognostics. 2017 International Conference on Sensing, Diagnostics, Prognostics, and Control (SDPC). :549–556.

Lithium Ion batteries usually degrade to an unacceptable capacity level after hundreds or even thousands of cycles. The continuously observed capacity fade data over time and their internal structure can be informative for constructing capacity fade models. This paper applies a mean-covariance decomposition modeling method to analyze the capacity fade data. The proposed approach directly examines the variances and correlations in data of interest and express the correlation matrix in hyper-spherical coordinates using angles and trigonometric functions. The proposed method is applied to model and predict key batteries performance metrics using testing data under various testing conditions.