基于Logit回归对船员通用紧急报警器的听觉特征分析

Analysis on Auditory Characteristics of Crew General Emergency Alarm Based on Logit Regression

警报器特性严重影响警报器的报警效果,不佳的特性设计无法及时正确获取警报信息。为分析船员通用紧急报警不同特征的报警效果,依据承担性理论开展试验研究。应用DMS-2020轮机模拟器进行试验与数据采集,通过有序Logit模型对试验结果进行量化处理,处理后的结果进行Bonferroni校正,使用推论统计学理论进行深度分析。试验结果表明:在机舱噪音场景下,采用语言广播辅助可显著提升船员通用紧急报警器的效果;报警音声压在75 dB以下变动效果显著,但在75 dB以上变动效果微弱,过高的声压还会造成噪声污染;改变警报器音调频率的效果微弱,可忽略不计。研究结果对于船员紧急报警器的特征设计具有一定的指导意义。

The characteristics of the alarm seriously affected the alarm effect, and the poor characteristic design made people unable to get the alarm information timely and correctly. In order to analyze the alarm effect of different characteristics of the crew general emergency alarm, an experimental study was carried out according to the theory of affordance. The experiment and data collection were carried out with DMS-2020 machinery operation simulator, then the experimental results were quantitatively analyzed by the ordered logit model. The processed results were corrected by Bonferroni, and then analyzed in depth by the inferential statistics theory. The experimental results indicated that in the case of cabin noise, it was of great significance to improve the effect of the crew general emergency alarm by using broadcast. When the sound pressure was below 75 dB, the change effect was significant, but when the sound pressure was above 75 dB, the change effect was weak. Excessive sound pressure will also cause noise pollution. Therefore, the effect brought by changing the alarm’s tone frequency was insignificant and could be ignored. The research results had a certain guiding significance for the characteristic design of the crew general emergency alarm.