Tracking of containers
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United States of America Patent
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Jan 26, 2010
Issued Date -
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app pub date -
May 5, 2006
filing date -
Nov 7, 2003
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Abstract
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.
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