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本文用 Poisson 分布拟合对海员意外死亡的时间分布进行了研究。根据1979～1983年期间中国海员意外死亡的资料,提出海员意外死亡的控制线为每月死亡数大于4人,警戒线为每月死亡数大于6人。控制图可作为有关部门预防和控制意外死亡的参考。
In this paper, Poisson distribution fitting was used to study the time distribution of seafarer’s accidental death. According to the data on accidental death of seafarers in China from 1979 to 1983, it was suggested that the control line for the accidental death of seafarers was more than 4 deaths per month and the warning line was more than 6 deaths per month. Control chart can be used as a reference for the relevant departments to prevent and control accidental death.