SUBWAY CONGESTION INFORMATION MANAGEMENT SYSTEM BASED ON WLAN PARAMETER FLUCTUATION

WIPO Patent Application WO/2019/009459

A1

The present invention relates to a technique by which an external congestion control server can receive passenger car-specific congestion information for a train so as provide information related to the level of congestion in each passenger car thereof to subway passengers waiting to board the train at a subway station, when a WLAN-based congestion detector provided in each passenger car of the subway train produces congestion information on how many passengers are in a passenger car on the basis of the fluctuation characteristics of WLAN parameters of an inner passenger car space. The present invention is configured such that the congestion detector is composed of a plurality of WLAN devices in order to increase estimation accuracy when the congestion information is produced, and an inner wireless communication environment of the subway passenger car is stabilized by continuously transmitting and receiving dummy data therebetween in the form of a UDP packet.

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KIM CHUL MIN (KR)
HWANG KWANG TAE (KR)

PCT/KR2017/007858

January 10, 2019

July 21, 2017

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KAONMEDIA CO LTD (KR)

G06Q50/30; H04W84/12

KR20120126376A	2012-11-21
JP6023280B1	2016-11-09
KR20090009957A	2009-01-23
KR20120090448A	2012-08-17
US20150215797A1	2015-07-30

KIM, Do Hyoung (KR)

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