Patents Assigned to Korea Railroad Research Institute
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Publication number: 20230374736Abstract: The present disclosure provides, as a sleeper pad for railroad sleepers in which a nonwoven fabric is attached to a rubber pad by a thermal fusion process, a nonwoven fabric-integrated sleeper pad using a rubber pad embedded with a stiffener and methods of manufacturing and constructing the same, which can adjust vertical support stiffness of the rubber pad by the stiffener embedded in the middle of the rubber pad and which can secure the flatness of the rubber pad by resisting bending deformation due to a difference in shrinkage between rubber and nonwoven fabric.Type: ApplicationFiled: November 9, 2022Publication date: November 23, 2023Applicant: KOREA RAILROAD RESEARCH INSTITUTEInventors: Dae Sang Kim, Ungjin Kim
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Patent number: 11731675Abstract: A system for exclusive track resource sharing is provided. Some embodiments provide an exclusive track resource sharing system including onboard control units and a resource manager. Onboard control unit is provided in each of trains and is configured to communicate with another onboard control unit in another train. The resource manager is configured to record ownership status information of track resources of the plurality of trains, to provide the ownership status information of the track resources to the onboard control unit, and to generate and deliver a resource entitlement or resource authority to the onboard control unit. The resource authority is configured to be owned by a single onboard control unit. The onboard control unit possessing the resource authority is configured to seize or release the track resources corresponding to the resource authority and to control the track resources corresponding to the resource authority.Type: GrantFiled: December 11, 2018Date of Patent: August 22, 2023Assignee: KOREA RAILROAD RESEARCH INSTITUTEInventors: Seh Chan Oh, Jong Hyen Baek, Hyeon Yeong Choi, Byung Hun Lee
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Publication number: 20230258612Abstract: In a method for detecting rail fracture, vibration data generated according to train operation is inputted, and the vibration data is collected using a distributed acoustic sensing (DAS) system. The inputted vibration data is imaged into the relationship between time and frequency. The imaged image is learned. Rail fracture of train is decided from the imaged vibration data, based on the learning.Type: ApplicationFiled: February 6, 2023Publication date: August 17, 2023Applicant: KOREA RAILROAD RESEARCH INSTITUTEInventors: Jungtai KIM, Hyeyeun CHUN, Yongki YOON, Yongkyu KIM, Kyeongjun KO, Seongjin KIM, Chankyoung PARK, Raggyo JEONG
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Publication number: 20230167614Abstract: The present disclosure provides an assembly type bridge lower structure having a socket type elastic duct coupler and a method of constructing the same in which, in construction of an assembly type bridge lower structure that consists of an assembly type foundation part, an assembly type pillar part, and an assembly type coping part, a socket type elastic duct coupler is utilized, thus enabling shear key joining at connection portions of the assembly type foundation part, the assembly type pillar part, and the assembly type coping part, easily accommodating of construction error displacements of the socket type elastic duct coupler, improving watertightness at connection portions of the precast segments, easily accommodating an insertion angle of the insertion member including a steel strand, a steel bar, a reinforcing bar, a FRP, or the like, and preventing an overflow phenomenon that occurs when epoxy is excessively applied during bonding between the precast segments.Type: ApplicationFiled: November 8, 2022Publication date: June 1, 2023Applicant: KOREA RAILROAD RESEARCH INSTITUTEInventors: TAEHOON KIM, Ki Young Eum, InHo Yeo, Yun Suk Kang, Dae-Sang Kim, Choon Seok Bang, Sungil Kim, Jeong Ryol Shin, KI HYUN KIM
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Publication number: 20230166709Abstract: 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.Type: ApplicationFiled: September 27, 2022Publication date: June 1, 2023Applicant: KOREA RAILROAD RESEARCH INSTITUTEInventors: Yeon Su KIM, Sung Hyuk PARK
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Publication number: 20230152415Abstract: A method and apparatus for cooperative positioning is disclosed herein. A method for cooperative positioning performed by a target device includes: scanning a beacon signal transmitted by at least one peripheral device; determining whether at least one peripheral device exist within a reference radius based on the beacon signal; when the at least one peripheral device is within the reference radius, transmitting a cooperative positioning request to the at least one peripheral device; receiving, in response to transmitting the cooperative positioning request, location of the at least one peripheral device and a degree of reliability for the location of the at least one peripheral device; and determining a location of the target device based on the location and the degree of reliability.Type: ApplicationFiled: January 20, 2023Publication date: May 18, 2023Applicant: KOREA RAILROAD RESEARCH INSTITUTEInventors: Seung Min YU, Jun LEE, So Young YOU, Sang Pil KO, Eun Bi JEONG
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Patent number: 11637488Abstract: Provided is an energy harvester and an engine monitoring system. An engine monitoring system using an energy harvester includes at least one or more self-power generation wireless sensor nodes for generating electric energy using the energy harvester and monitoring an engine; and a management server that receives and manages sensing information received from the self-power generation wireless sensor nodes.Type: GrantFiled: March 29, 2018Date of Patent: April 25, 2023Assignee: KOREA RAILROAD RESEARCH INSTITUTEInventors: Jae Hoon Kim, Da Hoon Ahn
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Patent number: 11628971Abstract: Proposed is an anti-vibration pallet. More particularly, the present disclosure relates to an anti-vibration pallet that is capable of realizing an effect of an air spring by using only a combination of an auxiliary mount and a main mount that are formed of elastic bodies provided between an upper plate and a lower plate, and is also capable of maximizing an anti-vibration performance by controlling an optimal anti-vibration load according to a cargo load. In order to achieve the objectives described above, the present disclosure includes: an upper plate on which cargo is loaded on a top portion thereof; a lower plate positioned below the upper plate; a main mount installed between the lower plate and the upper plate; and an auxiliary mount installed outside the main mount.Type: GrantFiled: May 3, 2021Date of Patent: April 18, 2023Assignee: Korea Railroad Research InstituteInventor: Seung-Ho Jang
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Patent number: 11618488Abstract: 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.Type: GrantFiled: November 19, 2019Date of Patent: April 4, 2023Assignee: KOREA RAILROAD RESEARCH INSTITUTEInventors: Hag Seoung Kim, Yong Jang Kwon, Suk Lee, Keun Yul Yang, Jong Un Won, Youn Keun Bhang, Young Joo Kim
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Publication number: 20230087643Abstract: The present disclosure provides a method and apparatus for determining coupling and decoupling positions between trains. In at least one embodiment, the present disclosure provides a method performed by an apparatus for determining coupling and decoupling positions between trains, the method comprising collecting performance data, simulation data, and real-time data, calculating a first parameter and a second parameter, and determining the coupling and decoupling positions between the trains.Type: ApplicationFiled: June 2, 2022Publication date: March 23, 2023Applicant: KOREA RAILROAD RESEARCH INSTITUTEInventors: Suk Mun OH, Ho Chan KWAK, Ji Young SONG, Rag Gyo JEONG
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Patent number: 11549622Abstract: The present disclosure provides a sealing apparatus for use in a hypertube, which includes a first tube, a second tube having one end connected to an end of the first tube, and a gasket including a seal made of a fiber structure formed with a space that is filled with a sealing fluid, wherein the gasket is configured to seal a space between the first tube and the second tube.Type: GrantFiled: December 5, 2018Date of Patent: January 10, 2023Assignee: KOREA RAILROAD RESEARCH INSTITUTEInventors: JaeHeon Choi, KwanSup Lee, SuYong Choi, JinHo Lee, YongJun Jang, ChangYoung Lee, LeeHyeon Kim, MinHwan Ok, JungYoul Lim, JeongMin Jo
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Patent number: 11525912Abstract: 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.Type: GrantFiled: December 10, 2018Date of Patent: December 13, 2022Assignee: KOREA RAILROAD RESEARCH INSTITUTEInventors: SuYong Choi, JaeHeon Choi, JungYoul Lim, ChangYoung Lee, KwanSup Lee, YongJun Jang, JeongMin Jo, JinHo Lee, MinHwan Ok, JaeHoon Kim, LeeHyeon Kim
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Publication number: 20220316550Abstract: 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.Type: ApplicationFiled: May 3, 2021Publication date: October 6, 2022Applicant: KOREA RAILROAD RESEARCH INSTITUTEInventor: Seung-Ho JANG
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Publication number: 20220306338Abstract: Proposed is an anti-vibration pallet. More particularly, the present disclosure relates to an anti-vibration pallet that is capable of realizing an effect of an air spring by using only a combination of an auxiliary mount and a main mount that are formed of elastic bodies provided between an upper plate and a lower plate, and is also capable of maximizing an anti-vibration performance by controlling an optimal anti-vibration load according to a cargo load. In order to achieve the objectives described above, the present disclosure includes: an upper plate on which cargo is loaded on a top portion thereof; a lower plate positioned below the upper plate; a main mount installed between the lower plate and the upper plate; and an auxiliary mount installed outside the main mount.Type: ApplicationFiled: May 3, 2021Publication date: September 29, 2022Applicant: KOREA RAILROAD RESEARCH INSTITUTEInventor: Seung-Ho JANG
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Patent number: 11320070Abstract: A tube infrastructure includes a first tube; a second tube that is coupled to the first tube; and a fluid tank that is disposed to surround a coupling region of the first tube and the second tube and is filled with a fluid to seal the coupling region, wherein the fluid tank allows negative pressure to be maintained inside the first tube and the second tube.Type: GrantFiled: July 19, 2018Date of Patent: May 3, 2022Assignee: KOREA RAILROAD RESEARCH INSTITUTEInventors: Jae Heon Choe, Kwan Sup Lee, Su Yong Choi, Chang Young Lee, Jung Youl Lim, Jin Ho Lee, Yong Jun Jang, Jeong Min Jo, Min Hwan Ok, Jae Hoon Kim
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Publication number: 20220034990Abstract: 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.Type: ApplicationFiled: October 19, 2021Publication date: February 3, 2022Applicant: Korea Railroad Research InstituteInventor: Seung Min YU
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Patent number: 11203364Abstract: The present invention relates to a bogie structure for a mountain railway car. The bogie structure is configured as follows: a traction motor for driving an axle of mountain railway car is installed on a car body to simplify the bogie structure and to minimized interference between the traction motor and other components constituting the bogie, and a first and a second bearing are respectively inserted and installed between a first and a second axle and a first and a second wheel, so that a first and a second wheel located in one side close to a turning center are rotated less than a first and a second wheel located in the other side opposite thereof and a traveling distance of the wheels located in the turning-centered side is generated corresponding to a length of a turning-centered side railway, whereby the mountain railway car is improved in traveling stability.Type: GrantFiled: June 22, 2017Date of Patent: December 21, 2021Assignee: Korea Railroad Research InstituteInventors: Sung-Il Seo, Hyung-Suk Mun
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Publication number: 20210362757Abstract: A system for exclusive track resource sharing is provided. Some embodiments provide an exclusive track resource sharing system including onboard control units and a resource manager. Onboard control unit is provided in each of trains and is configured to communicate with another onboard control unit in another train. The resource manager is configured to record ownership status information of track resources of the plurality of trains, to provide the ownership status information of the track resources to the onboard control unit, and to generate and deliver a resource entitlement or resource authority to the onboard control unit. The resource authority is configured to be owned by a single onboard control unit. The onboard control unit possessing the resource authority is configured to seize or release the track resources corresponding to the resource authority and to control the track resources corresponding to the resource authority.Type: ApplicationFiled: December 11, 2018Publication date: November 25, 2021Applicant: Korea Railroad Research InstituteInventors: Seh Chan OH, Jong Hyen BAEK, Hyeon Yeong CHOI, Byung Hun LEE
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Patent number: 11047154Abstract: 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.Type: GrantFiled: October 13, 2016Date of Patent: June 29, 2021Assignee: KOREA RAILROAD RESEARCH INSTITUTEInventors: Hag Seoung Kim, Yong Jang Kwon, Young Joo Kim, Sung Wook Kang, Young Ho Rhee
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Publication number: 20200398873Abstract: The present invention relates to a bogie structure for a mountain railway car. The bogie structure is configured as follows: a traction motor for driving an axle of mountain railway car is installed on a car body to simplify the bogie structure and to minimized interference between the traction motor and other components constituting the bogie, and a first and a second bearing are respectively inserted and installed between a first and a second axle and a first and a second wheel, so that a first and a second wheel located in one side close to a turning center are rotated less than a first and a second wheel located in the other side opposite thereof and a traveling distance of the wheels located in the turning-centered side is generated corresponding to a length of a turning-centered side railway, whereby the mountain railway car is improved in traveling stability.Type: ApplicationFiled: June 22, 2017Publication date: December 24, 2020Applicant: KOREA RAILROAD RESEARCH INSTITUTEInventors: SUNG-IL SEO, Hyung-Suk MUN