摘要
针对空座椅及婴儿座椅与其他不同类型的成人乘员,对电感式感应的汽车乘员分类检测系统中电感检测的微信号放大及鉴相技术可行性研究,通过信号放大,直流偏置,频率搬移,低频滤波技术得到可识别的检测信号;通过施密特触发并与MCU内部时钟比较,得到相位差。从而实现检测识别。并探讨实际电感式感应系统的应用和识别算法。
This paper focus on the empty seats and baby seats and other types of adult occupant,research inductive signal amplification and detection of micro-phase technical feasibility in the inductive sensing vehicle occupant classification system.It implies the signal amplification,DC bias,frequency moving,low-pass filtering techniques to identify detection signal,the Schmitt trigger mechanism,and compares with the MCU internal clock get phase difference identification,achieve the detection and identification.And it discusses on the practical application of inductive sensing systems and the recognition algorithm.
出处
《信息技术》
2010年第9期1-5,共5页
Information Technology
基金
上海市科学技术委员会资助(09700713900)
关键词
智能汽车乘员约束系统
电涡流乘员检测
电感式感应
频率搬移
鉴相电路
intelligent vehicle occupant restraint system
eddy current occupant detection
inductive sensing
frequency move
phase detector
