3 research outputs found
Maintenance of Smart Buildings using Fault Trees
Timely maintenance is an important means of increasing system dependability
and life span. Fault Maintenance trees (FMTs) are an innovative framework
incorporating both maintenance strategies and degradation models and serve as a
good planning platform for balancing total costs (operational and maintenance)
with dependability of a system. In this work, we apply the FMT formalism to a
{Smart Building} application and propose a framework that efficiently encodes
the FMT into Continuous Time Markov Chains. This allows us to obtain system
dependability metrics such as system reliability and mean time to failure, as
well as costs of maintenance and failures over time, for different maintenance
policies. We illustrate the pertinence of our approach by evaluating various
dependability metrics and maintenance strategies of a Heating, Ventilation and
Air-Conditioning system.Comment: arXiv admin note: substantial text overlap with arXiv:1801.0426