Active RFID system for port logistics using multi-hop communication and communication method in the system
US8217794B2 · kind B2 · utility
5Cited by
3References
10Claims
0Family size
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Key dates
| Filing date | Sep 24, 2009 |
| Grant date | Jul 10, 2012 |
| Priority date | — |
| Expiry date | Aug 28, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/10178
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Provided are an active radio frequency identification (RFID) system for port logistics and a communication method in the RFID system in which the forms of commands and response messages in the current standard are not changed in order to maintain compatibility with the current standard and to support multi-hop communication and some fields that are not generally used are used so as to enable communication between a tag in a shadow area and a reader by multi-hop communication using other surrounding tags.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.