警報装置に対する信頼度に基づく事故要因の分類(一般講演 A4)

抄録

The system and the alarm were designed as the operator operates properly it. However, the operator sometimes disregards consciously the alarms. In this paper, we discuss by the operator-machine-alarm model why operator disregards the alarms. The operator-machine-alarm model is the simplified model of the complex system. The model has three parameters which include the reliability by operator, the machine failure rate and the alarm failure rate. It can calculate the ratio of the machine state by giving each parameter.