公开(公告)号：US12123962B2

公开(公告)日：2024-10-22

申请号：US17505077

申请日：2021-10-19

Applicant: Korea Railroad Research Institute

Inventor： Seung Min Yu

IPC: G01S5/00 ,  H04B17/318 ,  H04W24/10 ,  H04W64/00

CPC classification number: G01S5/0063 ,  H04B17/318 ,  H04W24/10 ,  H04W64/00

Abstract: A positioning method and apparatus for positioning a terminal by using various data combinations are disclosed. The present disclosure in at least one embodiment provides a positioning terminal by using data combinations, including a data collection unit for collecting n access point (AP) scan data items from each of n APs (n is a natural number), a combination generation unit for generating a plurality of data combinations by combining the n AP scan data items in units of k (k is integers from 3 up to n), a position estimation unit for estimating a plurality of preliminary positions of the terminal from the plurality of data combinations, a clustering unit configured to cluster the plurality of preliminary positions into at least one cluster according to distances or densities of the plurality of preliminary positions, and a position determination unit for determining a final position of the terminal based on at least one cluster.

公开(公告)号：US20240267337A1

公开(公告)日：2024-08-08

申请号：US18640792

申请日：2024-04-19

Applicant: Korea Railroad Research Institute

Inventor： Il Mu BYUN ,  Kyeong Jun KO ,  Woo Jin AHN ,  Young Ju KIM ,  Sung Soo PARK

IPC: H04L47/28 ,  H04L12/46

CPC classification number: H04L47/28 ,  H04L12/46

Abstract: A method for transmitting data between a first communication device including a first terminal and a first virtual time sensitive networks (TSN) bridge and a second communication device including a second terminal and a second virtual TSN bridge, without interruption of a stream configured by using a time sensitive network even when a communication device moves, according to the present technology, comprises the steps of: the first terminal transmitting a virtual TSN bridge connection request to the first virtual TSN bridge; the first virtual TSN bridge transmitting a virtual TSN port information request to the second virtual TSN bridge according to the virtual TSN bridge connection request; the second virtual TSN bridge transmitting, to the first virtual TSN bridge, information related to a virtual TSN port included in the second virtual TSN bridge; and the first virtual TSN bridge determining, on the basis of the information related to the virtual TSN port, a plurality of virtual TSN ports to be used for communication with the second virtual TSN bridge in the first virtual TSN bridge.

公开(公告)号：US20230166709A1

公开(公告)日：2023-06-01

申请号：US17935748

申请日：2022-09-27

Applicant: KOREA RAILROAD RESEARCH INSTITUTE

Inventor： Yeon Su KIM ,  Sung Hyuk PARK

IPC: B60T17/22 ,  F16D66/00 ,  B60T8/88

CPC classification number: B60T17/228 ,  F16D66/00 ,  B60T8/885 ,  F16D2066/005 ,  F16D2066/001 ,  B60T2270/406 ,  B60T2250/04

Abstract: A brake caliper diagnostic device for railway vehicles according to an embodiment of the present disclosure includes an internal pressure sensor located between a brake hose for delivering brake oil or compressed air to the brake caliper and an inlet of the brake caliper, internal temperature sensors respectively installed in the air breathers respectively located above and below the brake caliper, an assembly plate temperature sensor located adjacent to a brake pad assembly, a piston temperature sensor located on a surface of a brake caliper body adjacent to a piston, and a brake caliper monitoring device configured to determine whether or not the brake caliper is abnormal, based on data received from the internal pressure sensor, the internal temperature sensors, the assembly plate temperature sensor, and the piston temperature sensor.

公开(公告)号：US20220316550A1

公开(公告)日：2022-10-06

申请号：US17312389

申请日：2021-05-03

Applicant: KOREA RAILROAD RESEARCH INSTITUTE

Inventor： Seung-Ho JANG

IPC: F16F15/02 ,  F16F15/06

Abstract: Proposed is an anti-vibration mount using combination of multiple springs in which a main spring is provided between an upper frame and a lower frame to reduce vibration, and an auxiliary spring is provided at each of the side portions of the upper frame such that the direction and magnitude of a force applied by the auxiliary spring change according to the compressed degree of the main spring, so the effect of an air spring is realized only with the combination of the main and auxiliary springs which are coil springs. The anti-vibration mount includes: the upper frame allowing an object to be installed thereon; the lower frame provided under the upper frame by being spaced apart therefrom; the main spring provided between the upper frame and the lower frame; and the auxiliary spring elastically supporting each of opposite sides of the upper frame and the lower frame.

公开(公告)号：US20220034990A1

公开(公告)日：2022-02-03

申请号：US17505077

申请日：2021-10-19

Applicant: Korea Railroad Research Institute

Inventor： Seung Min YU

IPC: G01S5/00 ,  H04W64/00 ,  H04W24/10 ,  H04B17/318

Abstract: A positioning method and apparatus for positioning a terminal by using various data combinations are disclosed. The present disclosure in at least one embodiment provides a positioning terminal by using data combinations, including a data collection unit for collecting n access point (AP) scan data items from each of n APs (n is a natural number), a combination generation unit for generating a plurality of data combinations by combining the n AP scan data items in units of k (k is integers from 3 up to n), a position estimation unit for estimating a plurality of preliminary positions of the terminal from the plurality of data combinations, a clustering unit configured to cluster the plurality of preliminary positions into at least one cluster according to distances or densities of the plurality of preliminary positions, and a position determination unit for determining a final position of the terminal based on at least one cluster.

公开(公告)号：US20210387657A1

公开(公告)日：2021-12-16

申请号：US17093979

申请日：2020-11-10

Applicant: KOREA RAILROAD RESEARCH INSTITUTE

Inventor： Yeon Su KIM ,  Sung Hyuk PARK

IPC: B61L3/00

Abstract: Provided is an electric dual-mode wiper system for a railway vehicle. The electric dual-mode wiper system for a railway vehicle includes a first wiper drive unit and a second wiper drive unit, and controls a synchronization operation of the first wiper drive unit and a second wiper drive unit.

公开(公告)号：US10787311B2

公开(公告)日：2020-09-29

申请号：US15580894

申请日：2016-06-10

Applicant: Korea Railroad Research Institute

Inventor： Hag Seoung Kim ,  Yong Jang Kwon ,  Suk Lee ,  Keun Yul Yang ,  Jong Un Won ,  Youn Keun Bhang ,  Young Joo Kim

IPC: B65D88/52 ,  B65D88/12

Abstract: A foldable container according to an exemplary embodiment of the present disclosure includes: a lower panel; an upper panel provided in parallel with the lower panel; first and second lateral panels of which upper and lower ends are respectively connected to the upper panel and the lower panel to be rotatable along a longitudinal direction of the upper panel and the lower panel and which are configured to be folded toward the inside of the foldable container; and front and rear panels connected to the lower panel to be rotatable along a transverse direction of the lower panel.

公开(公告)号：US20200241137A1

公开(公告)日：2020-07-30

申请号：US16652557

申请日：2018-12-10

Applicant: Korea Railroad Research Institute

Inventor： SuYong CHOI ,  Jae Heon CHOI ,  Jung Youl LIM ,  Chang Young LEE ,  Kwan Sup LEE ,  Yong Jun JANG ,  Jeong Min JO ,  Jin Ho LEE ,  Min Hwan OK ,  Jae Hoon KIM ,  Lee Hyeon KIM

IPC: G01S17/06 ,  B61B13/08 ,  B61B13/10 ,  B60L15/20

Abstract: The present disclosure provides a hypertube system for detecting a position of a hypertube vehicle, including a hypertube vehicle, a tube configured to surround a travel path of the hypertube vehicle, At least one LiDAR sensor each mounted on an inner wall of the tube and including a laser transmitter configured to irradiate a laser beam toward the hypertube vehicle and a laser receiver configured to detect a laser, and a reflector configured to reflect the laser irradiated from the LiDAR sensor, wherein the reflector may be disposed in the hypertube vehicle, and wherein the laser beam reflected from the reflector reaches the laser receiver of the LiDAR sensor to be used in detecting the position of the hypertube vehicle.

公开(公告)号：US10518303B2

公开(公告)日：2019-12-31

申请号：US16096289

申请日：2018-02-06

Applicant: Korea Railroad Research Institute

Inventor： Tae Hoon Koh ,  Dong Geun Lee ,  Han Ju Yoo

IPC: F26B3/00 ,  F26B3/34 ,  B09C1/06 ,  B02C23/10 ,  F26B3/347

Abstract: Disclosed are a thermal desorption system for oil-contaminated soil and gravel, using a microwave indirect irradiation method and including a microwave emission prevention device and a preheating device using waste heat, and a thermal desorption method for oil-contaminated soil and gravel, using the same. In addition, it is disclosed that an outer tube encompassing an inner tube extends to both sides and a plurality of ring-shaped microwave attenuation units are arranged on the inner circumferential surface of the outer tube, such that microwaves are prevented from leaking between the inner tube and the outer tube, thereby enabling eco-friendliness, and even the waste heat generated during a pollutant desorption process is utilized in the system itself, thereby enabling economic feasibility to increase further.

公开(公告)号：US20180171685A1

公开(公告)日：2018-06-21

申请号：US15736903

申请日：2016-10-13

Applicant: Korea Railroad Research Institute

Inventor： Hag Seoung Kim ,  Yong Jang Kwon ,  Young Joo Kim ,  Sung Wook Kang ,  Young Ho Rhee

IPC: E05B83/02 ,  B65D88/12 ,  B65D90/22

CPC classification number: E05B83/02 ,  B63B25/00 ,  B65D88/124 ,  B65D88/129 ,  B65D90/0013 ,  B65D90/22

Abstract: The present disclosure suggests a locking device for containers. A locking device for containers according to an exemplary embodiment of the present disclosure includes: a housing including a base part, a protrusion protruded upwards from an upper surface of the base part, and a through hole formed by penetrating the base part and the protrusion in a vertical direction; a connection part rotatably inserted into the through hole of the housing; an upper cone positioned on the connection part and inserted into a lower corner fitting of a first container positioned on an upper end; and a lower cone positioned under the connection part and inserted into an upper corner fitting of a second container positioned on a lower end.