汽车黑匣子抗干扰技术

Anti-interference technology of the automobile black box

汽车黑匣子是实时采集并记录汽车行驶状态的电子仪器,作用是保证行车安全和为道路交通事故责任分析提供信息,但汽车黑匣子工作环境恶劣,外界干扰大,需具有较强抗干扰能力才能正常工作。本文通过对汽车黑匣子所受干扰种类、作用部位及影响进行分析,从汽车黑匣子硬件和软件两个方面提出了各种抗干扰措施,能有效提高汽车黑匣子工作可靠性。

The automobile black box is of electric immanent,whlch can gather and record the state of the automobile＇s driving in time The automobile black box does the very well in assuring driving safety and analyzing responsibility in traffic accident.However, as the operating environment of black box is rather bad and interference is rather large , so anti-interference design very important. paper diacussed kinds,function and effect of intecferences to black box and pet forward some measures and methods both in hardware and software to improve relisbility.