RFID tag and construction site management system and management method using the same

US7880620B2 · kind B2 · utility

Assignee

• Hitachi Plant Technologies, Ltd. · JP

Inventors

• Fumio Hatori · Tokyo, JP
• Shinichi Ebata · Tokyo, JP
• Sumito Maezawa · Tokyo, JP
• Masayuki Hosokawa · Nisshin, JP
• Masashi Hashimoto · Tokyo, JP

Key dates

• Filing date: Dec 17, 2007
• Grant date: Feb 1, 2011
• Expiry date: Dec 13, 2028

Classification

• Technology area (CPC G): Physics
• CPC primary: G06Q10/06
• WIPO field: IT methods for management
• WIPO sector: Electrical engineering

Abstract

According to an aspect of the present invention, an RFID tag has a long-distance communication RFID and a plurality of short-distance communication RFIDs. The RFID tag has tear-off lines for separating the short-distance communication RFID from the whole RFID tag, and when the short-distance communication RFID is separated, a loop-shaped antenna of the long-distance communication RFID is also cut up. And the RFID tag has an overall management identification code for identifying the whole tag before separation and a partial management identification code for identifying a partial tag after separation.