轿车乘客自动识别系统的设计与研究.doc

PAGE 轿车乘客自动识别系统的设计与研究 山东莱芜高级技工学校 秦程现 摘 要 汽车安全气囊主要是防止乘员在碰撞事故中与车体内饰件发生二次碰撞，由于常规汽车安全气囊的起爆时间和充气强度的匹配设计原则是针对第95百分位男性且处于正常驾乘姿态时来提供最佳乘员保护。这种为一个身材高大的成年男性提供最佳保护而产生的强大冲击力，极有可能对离位乘员、小个子乘员、女性乘员和儿童乘员造成二次碰撞伤害。 本课题应用Tekscan软件采集座椅压力的分布，识别乘员的体型特征，避免安全气囊压力过大而对儿童或身材矮小者、女性乘员带来危险,进一步提高轿车的安全性；并对轿车乘客自动识别系统的结构组成、工作原理进行了深入的剖析，对实验环境的设计过程进行了全面的总结和详细的说明。实验台的总体设计工作包括台架结构的设计、台架的制作、数据的采集、数据的分析与处理等。 通过BP算法对数据进行统计分析，找出差异性。若输出值为1,判断为儿童,输出值为0,判断为成年人,从而辅助控制汽车安全气囊系统的工作，达到乘客识别的目的。 关键词：安全气囊；自动识别；坐姿；体压分布 ABSTRACT Airbag prevent occupant in the collision with the vehicle interior in the second collision incident, as the conventional automobile airbag inflation time and the initiation of matching the design principles of strength against the 95th percentile male and a normal driving posture when the crew to provide the best protection. Such as a tall adult male have to provide the best protection of a strong impact, most likely from the position of the occupant, a smaller crew, the crew of women and children caused by secondary impact injuries crew. Tekscan application of this subject in the artificial , the distribution of pressure through the seat data, the size of the crew to identify the characteristics of the output value of 1, the judge for children, the output value of 0, judged as adults, thereby assist-control automotive airbag system, airbag pressure to avoid too large or small size of children, women crew at risk of further improving the safety of cars. The design of the passenger car automatic identification system of the structure of the working principle of an in-depth analysis of the experimental design and the process of concluding a comprehensive and detailed explanation.Experimental work includes the design bench test structure design, test bench of the production, test data collection, test data analysis and processing. Key words：airbags；automatic identification； posture； body pressure distribution 目 录 TOC \o 1-4 \u 1引言 1 1.1课题提出的背景 1 1.2课题研究的目的与意义 2 1.3课题研究的理论依据 3 1.4设计与制作的主