公开(公告)号：US20060255909A1

公开(公告)日：2006-11-16

申请号：US10541276

申请日：2003-10-30

申请人： Frank Pavatich ,  Christopher Englefield ,  Sophocies Tsolakis

发明人： Frank Pavatich ,  Christopher Englefield ,  Sophocies Tsolakis

IPC分类号： G05B19/00

CPC分类号： B60R25/24 ,  G07C9/00309 ,  G07C2009/00555

摘要： A safety system including an electronic key that has a transmitter, and a protected object having a radio base station which includes a receiver, is provided. The transmitter and the receiver are designed to communicate in order to exchange authentication data. The radio base station regularly monitors the natural high frequency (HF) signal level received on the part of the receiver and detects interferences in the natural HF signal level, so as to make possible the detection of a relay station.

摘要翻译： 提供一种包括具有发送器的电子钥匙的安全系统和具有包括接收器的无线电基站的受保护对象。 发射机和接收机被设计为通信以交换认证数据。 无线电基站定期监测接收机部分接收的自然高频（HF）信号电平，并检测自然HF信号电平中的干扰，以便能够检测中继站。