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Title:
ENTRY/EXIT DETERMINATION SYSTEM AND ENTRY/EXIT DETERMINATION METHOD
Document Type and Number:
WIPO Patent Application WO/2022/130725
Kind Code:
A1
Abstract:
This entry/exit determination system (10) comprises: a shielding member (21); beacon transmitters (221, 222); a beacon receiving unit (30), and a determination unit (40). The shielding member (21) has a main surface (211) facing an area on one side of the boundary for determining entry/exit and a main surface (212) facing an area on the other side, and has electromagnetic shielding properties. A beacon transmitter (221) is disposed on the main surface (211) and transmits a beacon signal (BW221). The beacon transmitter (222) is disposed on the main surface (212) and transmits a beacon signal (BW222). The beacon receiving unit (30) is attached to a moving body that enters and exits, and measures the reception strengths (RSSI1, RSSI2) of the received beacon signals (BW221, BW222). The determination unit (40) determines entry/exit using the reception strengths (RSSI1, RSSI2) at a plurality of times.

Inventors:
YAMAGUCHI KENTA (JP)
NISHIMURA TETSU (JP)
OGUSHI NAOKI (JP)
Application Number:
PCT/JP2021/034833
Publication Date:
June 23, 2022
Filing Date:
September 22, 2021
Export Citation:
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Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
G01S1/68; G01S5/02
Foreign References:
JP2018054485A2018-04-05
JP2018064238A2018-04-19
JP2019002850A2019-01-10
Attorney, Agent or Firm:
KAEDE PATENT ATTORNEYS' OFFICE (JP)
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