Reliability Analysis of k-out-of-n Surveillance Systems Subject to Dual Stochastic Process and Opportunistic Maintenance Policy  
Author Yao Zhang


Co-Author(s) Hoang Pham


Abstract Surveillance systems have been widely used in areas that need monitoring such as airports, railroads, banks, shopping malls, hospitals, schools, etc. The failure of these systems should be analyzed associated with the intrusion/incident arrival process (called intrusion process) in order to achieve a comprehensive representation of the system outcomes. In this paper, we develop a generalized dual-stochastic-process reliability model of k-out-of-n surveillance systems with complete four failure modes on the subsystem level, noted as fail-dangerous detectable, fail-dangerous undetectable, fail-safe detectable and fail-safe undetectable modes. The reliability of the system is derived with considerations of the intrusion process and a (m, d, T) opportunistic maintenance policy. The closed-form reliability function of a triplemodular redundancy (TMR) is obtained. Numerical examples are given to demonstrate the validity of the modeling.


Keywords Surveillance model, reliability, multiple processes, multi-state component, TMR, opportunistic maintenance
    Article #:  2089
Proceedings of the 20th ISSAT International Conference on Reliability and Quality in Design
August 7-9, 2014 - Seattle, Washington, U.S.A.