An access system for an object (10) has a transmitting unit (20) and a transponder unit (30). The transmitting unit (20) emits query signals at regular intervals. The transponder unit (30), in response to a triggering event, stores a current position of the object (10) and determines its own position at regular intervals. The transponder unit (30) deactivates the transmitting unit (20) if the transponder unit detects, on the basis of the determined position, that it has left a first zone ZI, wherein the first zone ZI is located around the object (10), and wherein the transmitting unit (20) does not emit any query signals while it is deactivated. The transponder unit (30) activates the transmitting unit (20) again when the transponder unit detects, on the basis of the determined position, that it has entered an adapted first zone ZI' x, wherein the adapted first zone ZI' x is located around the object (10).
披露了一种用于对象(10)的访问系统,该访问系统具有布置在该对象中的发送单元(20)和布置在便携式装置中的应答器单元(30)。该发送单元(20)以规则间隔发射请求信号。该应答器单元(30)响应于触发事件,存储该对象(10)的当前位置,并以规则间隔确定其自身位置。该应答器单元(30)在它基于所确定的位置检测到它已经离开第一区域(ZI)时去激活该发送单元(20),其中该第一区域(ZI)围绕该对象(10)布置,并且其中该发送单元(20)在其被去激活时不发射任何请求信号。该应答器单元(30)在它基于所确定的位置检测到它已经进入调整后的第一区域(ZI’)时激活该发送单元(20),其中该调整后的第一区域(ZI’)围绕该对象(10)布置。
Access system and access verification method
访问系统和访问验证方法
2020-05-15
Patent
Electronic Resource
Chinese
Secure Access System Using Signature Verification over Tablet PC
Online Contents | 2007
|