Title:
RADIO COMMUNICATION DEVICE AND ROOM ENTRY/EXIT CONTROL SYSTEM USING SAID RADIO COMMUNICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/025405
Kind Code:
A1
Abstract:
An RFID tag for a room entry/exit control system includes: a receiving unit that receives an inquiry radio wave transmitted from a tag data receiver and including an identification code for identifying the tag data receiver; a transmitting unit that transmits a response radio wave including the identification code upon reception of the inquiry radio wave by the receiving unit; and a transmission history storage unit that stores identification codes included in response radio waves that have been transmitted by the transmitting unit in the past. When a plurality of inquiry radio waves including identification codes are received by the receiving unit, the transmitting unit of the RFID tag transmits only a response radio wave including a specific identification code on the basis of the identification codes included in the inquiry radio waves and the identification codes stored in the transmission history storage unit.
Inventors:
ANDO NOBUHIKO (JP)
Application Number:
PCT/JP2016/073126
Publication Date:
February 08, 2018
Filing Date:
August 05, 2016
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
G06K19/07; G06K7/10; G07C9/00; H04B1/59
Foreign References:
| JP2002334361A | 2002-11-22 | |||
| JP2012243248A | 2012-12-10 | |||
| JP2013026699A | 2013-02-04 |
Attorney, Agent or Firm:
SOGA, Michiharu et al. (JP)
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