ANTENNA IMPEDANCE-BASED APPARATUS AND METHOD FOR DETECTING A BREACH IN THE INTEGRITY OF A CONTAINER
摘要
<p>A security breach in the integrity of a container (10), such as a cargo container or a security vault, is detected using an apparatus (12) formed of a transmitter (18) and a processor (20). The transmitter (18) includes an antenna (26) that radiates electromagnetic waves from within the container (10). The processor (20) measures an impedance of the antenna (26) and produces an alarm if the impedance of the antenna (26) strays indicating a security breach in the integrity of the container (10).</p>
申请公布号
WO2006091186(A1)
申请公布日期
2006.08.31
申请号
WO2005US05234
申请日期
2005.02.22
申请人
CHUBB INTERNATIONAL HOLDINGS LIMITED;CONCHA, JULIO, I.;OH, JAE-HYUK