Monitoring device modules (10) in containers on a ship are polled by a tracking proxy (12). Monitoring data is thus captured, and the proxy 12 can ascertain in real time that the correct group of containers is present. The proxy (12) also transmits higher-value report messages with relatively low bandwidth via a satellite communication system (13) to a gateway (15). The gateway (15) routes the messages on to various systems such as tracking centers. Also, the gateway (15) regularly polls and authenticates the distributed tracking proxies (12) within its group.
申请公布号
HK1097074(A1)
申请公布日期
2013.03.08
申请号
HK20070103965
申请日期
2007.04.16
申请人
ALTOBRIDGE LIMITED
发明人
GUY, WAUGH;MICHAEL, FITZGERALD;CHRISTOPHER, YOUNG;MICHAEL, GODLEY;RICHARD, LORD