配备免钥匙进入(Passive Keyless Entry,PKE)系统的汽车让消费者毋须使用机械钥匙或按动遥控钥匙的按钮,便可以开启上锁的车门。PKE系统有遥控钥匙和基地台两个主要元件,遥控钥匙通常放置在车主或驾驶者的钱包或口袋里,而基地台则安装在汽车上,包含产生环绕在汽车周围,通常为125kHz低频(Low Frequency,LF) Cars equipped with the PKE system allow consumers to unlock their doors without using a mechanical key or pressing a button on the remote control key. The PKE system has two key elements: a remote control key and a base station. The remote control key is usually placed in the owner’s or driver’s wallet or pocket, while the base station is mounted on a car and contains components that generate a low frequency around the car, typically 125kHz Frequency, LF)