公开(公告)号：US20190134686A1

公开(公告)日：2019-05-09

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: B09C1/06 ,  F26B3/347 ,  B02C23/10

CPC classification number: B09C1/06 ,  B02C23/10 ,  B09C1/00 ,  F26B3/347

Abstract: Embodiments of the present invention relate to 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 and, more specifically to: a device capable of economically purifying, in an eco-friendly manner, contaminated soil and gravel by using a microwave indirect irradiation method on soil and gravel contaminated by pollutants such as various oils or organic waste; and a method therefor. When using the contaminated soil and gravel purification device and the method therefor of the present invention, purification work can be completed by processing contaminated soil and gravel only once, thereby enabling high productivity to be ensured, and waste materials discharged from an ironmaking process and the like are used as raw materials of heating element particles such that objectives are achieved even without using conventional, high-priced materials, thereby enabling high economic feasibility to be ensured, and thus applicability to an actual field can remarkably increase. In addition, 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 to be ensured, 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：US10161090B2

公开(公告)日：2018-12-25

申请号：US15570726

申请日：2015-10-26

Applicant: KOREA RAILROAD RESEARCH INSTITUTE

Inventor： Kyoung Chan Lee ,  In Ho Yeo ,  Sung Il Kim ,  Seung Yup Jang ,  Hyun-Min Kim ,  Ki Hyun Kim ,  Hyang Wook Ma ,  Young Hak Kwak ,  Yoon Bong Shin ,  In Gyu Kim ,  Young Jin Kim

IPC: E01D21/06 ,  E01D19/12 ,  E01D6/00

Abstract: A method for launching/constructing a bridge using assembly of a precast bottom plate and a concrete-filled steel tube truss girder, wherein a CFT truss girder and a precast bottom plate are provisionally assembled, thereby forming a segment, and then a plurality of segments are successively launched, thereby constructing a bridge.

公开(公告)号：US10084565B1

公开(公告)日：2018-09-25

申请号：US15797454

申请日：2017-10-30

Applicant: KOREA RAILROAD RESEARCH INSTITUTE

Inventor： Jung Tai Kim ,  Chi Hyung Ahn ,  Jae Hee Kim ,  Seh Chan Oh ,  Kyeong Jun Ko ,  Sung Soo Park ,  Jae Ho Lee ,  Sang Hoon Chang

IPC: H04B1/18 ,  H04K3/00

CPC classification number: H04K3/22 ,  B61L3/125 ,  B61L15/0027 ,  H04K3/222 ,  H04K3/224 ,  H04K3/226 ,  H04K3/62 ,  H04K3/88 ,  H04K2203/16 ,  H04K2203/22 ,  H04K2203/32 ,  H04K2203/36

Abstract: An apparatus and method for protecting a communication device of a railroad car is provided. The apparatus includes an antenna portion configured to include main antennas and an auxiliary antenna, a main receiver configured to check a magnitude of a received signal transferred through the main antennas of the antenna portion, an auxiliary receiver configured to check a magnitude of a received signal transferred through the auxiliary antenna of the antenna portion, and a controller configured to compare the magnitude of the signal received by the main receiver and the magnitude of the signal received by the auxiliary receiver, determine whether there is a jamming signal according to a comparison result, and take a preset countermeasure when it is determined that there is a jamming signal.

公开(公告)号：US10046779B2

公开(公告)日：2018-08-14

申请号：US15430665

申请日：2017-02-13

Applicant: Korea Railroad Research Institute

Inventor： Jaehoon Kim

IPC: G06F7/00 ,  B61L15/00 ,  H02K7/18 ,  H02N2/18 ,  H02K35/02 ,  B61K9/00 ,  B61L27/00 ,  G01M17/08 ,  G01D5/02

Abstract: A wireless sensor device includes: an energy harvester configured to convert vibration generated from a broadband vibration source into electricity, an elastic member arranged to receive the vibration and a communication unit fixed by the elastic member, supplied with the converted electricity from the energy harvester, and configured to transmit sensing information obtained by sensing a measurement target. The elastic member operates as a mechanical filter configured to limit a frequency range and an acceleration magnitude of the vibration to be transferred to the communication unit for stabilizing the performance of the communication unit, and the communication unit is arranged to receive vibration passing through the elastic member.

公开(公告)号：US20180143017A1

公开(公告)日：2018-05-24

申请号：US15570373

申请日：2016-02-22

Applicant: KOREA RAILROAD RESEARCH INSTITUTE

Inventor： IL YOON CHOI ,  JUN SUK LEE ,  SAM YOUNG KWON ,  IN KI MIN

IPC: G01B21/16 ,  G01C9/00 ,  G01P3/00

CPC classification number: G01B21/16 ,  B61K9/00 ,  B61L23/047 ,  B61L23/048 ,  G01B21/30 ,  G01B21/32 ,  G01C9/00 ,  G01P3/00

Abstract: Provided is versine trolley-type equipment for inspecting a track irregularity, having sensors respectively provided to a trolley so as to measure a height difference, direction misalignment, gauge irregularity, rail longitudinal slope, cant and the like of railroad rails, and simultaneously measuring the height difference and direction misalignment of a left rail and a right rail so as to reduce a measurement time by half and, also, allowing left and right measurement frames to freely move in a vertical direction within a predetermined range, thereby bringing front and rear trolley wheels of the left and right measurement frames into close contact with the rails all the time even if the rails are warped.

公开(公告)号：US09701325B2

公开(公告)日：2017-07-11

申请号：US14927861

申请日：2015-10-30

Applicant: Korea Railroad Research Institute

Inventor： Jaehoon Kim ,  Jae Yun Lee ,  Kwan Sup Lee ,  Young Il Kim ,  Kun Min Yeo

IPC: G07C5/00 ,  G01J1/42 ,  B60C23/00 ,  B61L15/00 ,  H02N2/18 ,  G01D11/00 ,  G01M17/08 ,  H02K7/18 ,  H02K35/02 ,  B61L27/00 ,  B61L25/04

CPC classification number: B61L15/0018 ,  B61K9/00 ,  B61L15/0027 ,  B61L15/0081 ,  B61L25/04 ,  B61L27/0005 ,  B61L27/0077 ,  B61L27/0094 ,  G01D5/02 ,  G01D11/00 ,  G01M17/08 ,  H02K7/1892 ,  H02K35/02 ,  H02N2/186

Abstract: A railroad vehicle monitoring system installed on a railroad vehicle includes: wireless sensor devices installed at attached equipment of the railroad vehicle, including a sensor that senses statuses of the attached equipment, configured to wirelessly transmit a sensing value sensed by the sensor in real time, and including an energy harvester configured to convert energy generated by running of the railroad vehicle into electric energy, and supply the electric energy as a power source for the sensor, a signal process in the sensing value, and wireless communication of the sensing value; sink node devices configured to wirelessly receive the sensing value and output, in real time, railroad vehicle status information obtained by integrating the received sensing value; and a vehicle status monitoring device configured to receive the railroad vehicle status information, integrate and manage the railroad vehicle status information, and output the integrated railroad vehicle status information in real time.

公开(公告)号：US09698663B2

公开(公告)日：2017-07-04

申请号：US14426719

申请日：2013-04-13

Applicant: KOREA RAILROAD RESEARCH INSTITUTE

Inventor： Woo Tae Jeong ,  Duck Shin Park ,  Soon Bark Kwon

IPC: H02K44/00 ,  F01D1/00 ,  H02K7/18

CPC classification number: H02K44/00 ,  F01D1/00 ,  H02K7/18

Abstract: Provided is an orientation control device for a magnetic fluid, includes: a magnetic fluid having magnetic nanoparticles; an induction power generation unit configured to include a silicone tube through which the magnetic fluid passes and a solenoid coil which is wound around a predetermined section outside the silicone tube to generate induced power when the magnetic fluid passes through an inner side of the silicone tube; and a magnetic pole direction control unit configured to include a silicone tube at an entrance portion of the induction power generation unit and a solenoid coil wound around a predetermined section outside the silicone tube and generating a flux when a current flows therein so as to control pole orientation of the magnetic fluid.

公开(公告)号：US20170151964A1

公开(公告)日：2017-06-01

申请号：US15430665

申请日：2017-02-13

Applicant: Korea Railroad Research Institute

Inventor： Jaehoon Kim ,  Jae Yun Lee ,  Kwan Sup Lee ,  Young Il Kim ,  Kun Min Yeo

IPC: B61L15/00 ,  H02N2/18 ,  G01D5/02 ,  B61K9/00 ,  B61L27/00 ,  G01M17/08 ,  H02K7/18 ,  H02K35/02

CPC classification number: B61L15/0018 ,  B61K9/00 ,  B61L15/0027 ,  B61L15/0081 ,  B61L25/04 ,  B61L27/0005 ,  B61L27/0077 ,  B61L27/0094 ,  G01D5/02 ,  G01D11/00 ,  G01M17/08 ,  H02K7/1892 ,  H02K35/02 ,  H02N2/186

Abstract: A wireless sensor device includes: an energy harvester configured to convert vibration generated from a broadband vibration source into electricity, an elastic member arranged to receive the vibration and a communication unit fixed by the elastic member, supplied with the converted electricity from the energy harvester, and configured to transmit sensing information obtained by sensing a measurement target. The elastic member operates as a mechanical filter configured to limit a frequency range and an acceleration magnitude of the vibration to be transferred to the communication unit for stabilizing the performance of the communication unit, and the communication unit is arranged to receive vibration passing through the elastic member.

公开(公告)号：US20170048894A1

公开(公告)日：2017-02-16

申请号：US15234997

申请日：2016-08-11

Applicant: Korea Railroad Research Institute

Inventor： Sang Won CHOI ,  Ju Yeop KIM ,  Yong Soo SONG ,  Yong Kyu KIM

IPC: H04W76/00 ,  H04W4/08 ,  H04W4/10

CPC classification number: H04W76/45 ,  H04W4/08 ,  H04W4/10 ,  H04W76/50

Abstract: A method of Mission Critical Push to Talk (MCPTT) service performed by a mobile terminal includes: generating, at the mobile terminal, a group call announcement for off-network Mission Critical Push to Talk (MCPTT) service, the group call announcement for off-network MCPTT service including information of a period of the group call announcement for off-network MCPTT service; controlling a transceiver to periodically transmit, to one or more mobile terminals, the group call announcement for off-network MCPTT service based on the period; in response to the transmitted group call announcement for off-network MCPTT service, receiving a response from the one or more mobile terminals; and establishing, based on the response from the one or more mobile terminals, a group call with the one or more mobile terminals by setting a direct wireless communication with the one or more mobile terminals.

Abstract translation: 由移动终端执行的关键任务通信（MCPTT）服务的方法包括：在移动终端处生成用于离网任务关键一键通（MCPTT）服务的群组通话通知，组呼呼叫关闭 网络MCPTT服务，包括网络外MCPTT服务的群组通话周期信息; 基于该周期，控制收发器周期性地向一个或多个移动终端发送用于离网网络MCPTT服务的群呼通知; 响应于所发送的用于离网MCPTT服务的组呼通知，接收来自所述一个或多个移动终端的响应; 以及基于来自所述一个或多个移动终端的响应，通过设置与所述一个或多个移动终端的直接无线通信来建立与所述一个或多个移动终端的群组呼叫。

公开(公告)号：US20160365951A1

公开(公告)日：2016-12-15

申请号：US15072982

申请日：2016-03-17

Applicant: KOREA RAILROAD RESEARCH INSTITUTE

Inventor： Sang Won CHOI ,  Ju Yeop KIM ,  Yong Soo SONG ,  Yong Gyu KIM

IPC: H04L1/08 ,  H04L1/16

CPC classification number: H04L1/08 ,  H04L1/1607 ,  H04L1/1829 ,  H04L1/1867

Abstract: Provided is a method for retransmitting received data using index coding and statistical characteristics in a method for transmitting packets, by a transmitter, to at least two receivers in a wireless communication network and retransmitting packets which are not received correctly by each receiver, wherein the transmitter receives a reception acknowledgement response signal for the packets transmitted to the receiver and analyzes received patterns of the reception acknowledgement response signals transmitted from the receiver to differently perform index coding for each received pattern on the packets which are not received correctly by the receiver and retransmit the index-coded packets. According to the exemplary embodiment of the present invention, it is possible to effectively reduce a retransmission frequency of the packets which are not received correctly and a channel use frequency on communications and effectively use limited radio resources.

Abstract translation: 提供了一种用于在由无线通信网络中的发射机向至少两个接收机发送分组的方法中的索引编码和统计特性的接收数据的重传方法，并且重传未被每个接收机正确接收到的分组，其中发射机 接收发送到接收机的分组的接收确认响应信号，并且分析从接收机发送的接收确认响应信号的接收模式，以对接收机未正确接收到的分组对每个接收模式不同地执行索引编码，并重发 索引编码数据包。 根据本发明的示例性实施例，可以有效地减少未正确接收的分组的重传频率和通信上的信道使用频率，并有效地使用有限的无线电资源。