Title:
APPROACH WARNING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/213707
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide an approach warning system that emits an alarm when a master station and a slave station approach, said system being able to identify the approaching slave station. Specifically, the present invention is an approach warning system that issues a warning when one or a plurality of master stations approaches one or a plurality of slave stations, wherein a slave station control unit: causes a slave station information transmission unit to transmit first slave station information, which includes a warning trigger ID but does not include a slave station ID identifying the slave station itself, when a slave station trigger reception unit receives the warning trigger ID; causes a slave station warning emission unit to emit a warning, and when the slave station trigger reception unit receives a slave station identification trigger ID, causes the slave station information transmission unit to transmit second slave station information including the slave station identification trigger ID and a slave station ID identifying the slave station itself; and causes the slave station warning emission unit to emit a warning. A master station control unit identifies that the slave station having the slave station ID is approaching when the slave station identification trigger ID included in the second slave station information matches the slave station identification trigger ID of the slave station itself.
Inventors:
HARANO SHINYA (JP)
Application Number:
PCT/JP2020/016833
Publication Date:
October 22, 2020
Filing Date:
April 17, 2020
Export Citation:
Assignee:
YOSHIKAWA KOGYO KK (JP)
International Classes:
E02F9/24; E02F9/26; G01V3/12; G01V15/00; G08B21/02; G08B25/10
Foreign References:
| JP2012053515A | 2012-03-15 | |||
| JP2013016142A | 2013-01-24 | |||
| US20100289662A1 | 2010-11-18 | |||
| JP2014177790A | 2014-09-25 | |||
| JP2016057934A | 2016-04-21 | |||
| KR20150108985A | 2015-10-01 |
Attorney, Agent or Firm:
EIWA PATENT FIRM (JP)
Download PDF: