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

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.