Risk Assessment of Audio-visual Equipment Based on Fuzzy Comprehensive Evaluation Method

In order to meet people’s pursuit for culture and art, more and more audio-visual equipment is involved to provide colorful experience for the audience, which increases the probability of performance accident consequently. Risk evaluation of equipment is essential to find the risk factors and reduce the frequency of hazardous events. A method of fuzzy comprehensive evaluation, integrated Failure Modes and Effects Analysis (FMEA) as well as Fault Tree Analysis (FTA) is adopted here. Firstly, FMEA is used to identify the effective failure modes of audio-visual equipment, which may lead to some hazardous events. Secondly, the failure modes identified are used as the inputs of the fault trees to calculate the probability of the event. Lastly, the fuzzy evaluation method is introduced to construct an assessment model of audio-visual equipment. The results of simulation show the effectiveness of the model.