【摘要】：隨著高速公路的普及，經(jīng)濟(jì)水平的提高，汽車已經(jīng)成為了人們外出必備的交通工具，汽車的安全性得到了普遍的提升，從增加車身的碰撞強(qiáng)度到制動(dòng)系統(tǒng)功能的提升從各方面都提升了汽車的主動(dòng)安全性能。交通事故發(fā)生的瞬間，往往伴隨著二次碰撞的發(fā)生，減少二次碰撞的發(fā)生可以有助于降低事故致死率與致傷率。這些年來汽車安全座椅及安全氣囊的應(yīng)用大大降低了事故發(fā)生時(shí)駕乘人員的傷亡率。但是安全氣囊某些方面的局限性，采用單一固定的模式對(duì)駕乘人員進(jìn)行保護(hù)，導(dǎo)致許多負(fù)面效應(yīng)同時(shí)發(fā)生。本文針對(duì)安全氣囊的工作過程進(jìn)行分析研究，找出安全氣囊系統(tǒng)存在的缺陷，通過對(duì)乘員的視覺識(shí)別技術(shù)和對(duì)安全氣囊點(diǎn)火控制算法的優(yōu)化來提升安全氣囊在工作過程中對(duì)乘員的保護(hù)作用。在視覺識(shí)別分類系統(tǒng)中采用了圖像處理技術(shù)，，將運(yùn)動(dòng)圖像的處理方法應(yīng)用到了對(duì)乘員的分類識(shí)別中，在分類識(shí)別方法中進(jìn)行邊緣檢測(cè)時(shí)引入了多種邊緣檢測(cè)算子，圖像預(yù)處理方法中借助圖像的灰度化處理達(dá)到了對(duì)圖像效果的修復(fù)功能。在對(duì)安全氣囊點(diǎn)火控制算法進(jìn)行優(yōu)化的過程中，首次采用了多參數(shù)點(diǎn)火算法的概念對(duì)氣囊的點(diǎn)火控制算法進(jìn)行優(yōu)化。以點(diǎn)火條件和點(diǎn)火時(shí)刻兩個(gè)參數(shù)結(jié)合來完成對(duì)點(diǎn)火系統(tǒng)的控制，這樣可以達(dá)到精確點(diǎn)火，避免氣囊發(fā)生提早點(diǎn)爆或者誤爆的現(xiàn)象。
[Abstract]:With the popularization of freeway and the improvement of economic level, automobile has become the necessary vehicle for people to go out, and the safety of automobile has been generally improved. From increasing the impact intensity of the body to improving the function of the braking system, the active safety performance of the vehicle is improved in all aspects. When traffic accident happens, it is often accompanied by secondary collision. Reducing the occurrence of secondary collision can help to reduce the fatality rate and injury rate. Over the years, the application of car seat and airbag has greatly reduced the casualty rate of drivers. However, because of the limitation of airbag in some aspects, the single fixed mode is used to protect the driver, which results in many negative effects occurring at the same time. In this paper, the working process of airbag is analyzed, and the defects of airbag system are found out. In order to improve the protective effect of airbag on occupants, the visual identification technology and the optimization of ignition control algorithm for airbag are used to improve the safety airbag protection. The image processing technology is used in the visual recognition classification system. The moving image processing method is applied to the classification and recognition of the occupants. In the classification and recognition method, a variety of edge detection operators are introduced. In the image preprocessing method, the restoration function of image effect is achieved with the help of grayscale image processing. In the process of optimizing the airbag ignition control algorithm, the concept of multi-parameter ignition algorithm is used for the first time to optimize the airbag ignition control algorithm. The ignition system can be controlled by the combination of ignition condition and ignition time, which can achieve accurate ignition and avoid the phenomenon of early ignition or false explosion of air bag.
【學(xué)位授予單位】：長(zhǎng)安大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：U491.61

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本文編號(hào)：2275545