Title:
DEVICE FOR EXTERNAL COMMUNICATION FOR ELEVATOR
Document Type and Number:
WIPO Patent Application WO/2020/235096
Kind Code:
A1
Abstract:
A device for external communication comprises a detection device (14) and an alarm device (16). The detection device (14) comprises a microphone (17), a detection unit (19), and a transmission unit (20). When the detection unit (19) detects that an intercom (13) is emitting a call sound, the transmission unit (20) wirelessly transmits a detection signal. The alarm device (16) comprises an alarm unit, a reception unit (23), and an alarm control unit (24). When the reception unit (23) receives the detection signal from the transmission unit (20), the alarm control unit (24) sounds an alarm from the alarm unit.
Inventors:
SASAKI SHIGEO (JP)
Application Number:
PCT/JP2019/020522
Publication Date:
November 26, 2020
Filing Date:
May 23, 2019
Export Citation:
Assignee:
MITSUBISHI ELECTRIC BUILDING TECHNO SERVICE CO LTD (JP)
International Classes:
B66B3/00; B66B5/00
Domestic Patent References:
| WO2006117861A1 | 2006-11-09 |
Foreign References:
| JP2004112484A | 2004-04-08 | |||
| JP2009007142A | 2009-01-15 | |||
| JP2014060688A | 2014-04-03 | |||
| JP2005075478A | 2005-03-24 | |||
| US20050045425A1 | 2005-03-03 |
Attorney, Agent or Firm:
TAKADA, Mamoru et al. (JP)
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