Tracking of containers
US7652568B2 · kind B2 · utility
11Cited by
11References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 5, 2006 |
| Grant date | Jan 26, 2010 |
| Priority date | — |
| Expiry date | Dec 28, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/561
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.