Reliability analysis of BA system based on connection number of set pair analysis and FTA
基于集对分析联系数故障树的BA系统可靠性分析*

To manage and monitor(BAS) equipment effectively and improve the system reliability, researched a reliability method of BAS based on the theory of connection number of set pair analysis and FTA. Firstly, every kind of factors, which could make the building equipment fault, was analysis deeply. Then, constructed a fault tree and confirmed the reasons of system fault in every possible combination way by the fault tree model.Secondly, established a BAS reliability evaluation model combined with the conception of intermediate probability and the theory of connection number of set pair analysis. Finally, presented an example of BA cold source system to verify the reliability and effectiveness of this model .The result shows the model is easy to find the weakness of system, so as to improve the system reliability effectively.