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    Energy harvester and wireless sensor device having energy harvester
    33.
    发明授权
    Energy harvester and wireless sensor device having energy harvester 有权

    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.

    Orientation control device for magnetic fluid and method for same
    36.
    发明授权
    Orientation control device for magnetic fluid and method for same 有权

    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.

    Non-contact power feeding apparatus using conductive fluid
    37.
    发明授权
    Non-contact power feeding apparatus using conductive fluid 有权
    使用导电流体的非接触供电装置

    公开(公告)号：US09531219B2

    公开(公告)日：2016-12-27

    申请号：US14347727

    申请日：2011-12-15

    Applicant: Seong Won Nam

    Inventor： Seong Won Nam

    IPC: B60L5/00 ,  H02J17/00

    CPC classification number: B60L5/00 ,  B60L5/005 ,  B60L2200/26 ,  H02J17/00 ,  H02J50/00

    Abstract: Disclosed is a non-contact power feeding apparatus using a conductive fluid, through which an electric railroad vehicle or a trolleybus receives required power from a contact wire in a non-contact state by using the conductive fluid. The non-contact power feeding apparatus according to the present invention includes: a fluid injection hole defined in a vehicle to inject the conductive fluid toward the contact wire; a conductive fluid container for supplying the conductive fluid that is injected through the fluid injection hole; a pressing pump for injecting the conductive fluid within the conductive fluid container through the fluid injection hole; and a current collection terminal disposed on a side of the fluid injection hole to receive the power from the contact wire in a non-contact manner by using the conductive fluid as a medium. According to the present invention, since the conductive fluid is injected toward the contact wire through the fluid injection hole to feed the power in a non-contact manner, wear-out of the power feeding apparatus and the contact wire does not occur and thus costs for maintenance and repair can be reduced.

    Abstract translation: 公开了一种使用导电流体的非接触供电装置，电动铁路车辆或无轨电车通过使用导电流体从非接触状态的接触线接收所需的电力。 根据本发明的非接触供电装置包括：限定在车辆中的流体注入孔，用于将导电流体朝向接触导线注入; 导电流体容器，用于供给通过流体注入孔注入的导电流体; 用于通过流体注入孔将导电流体注入导电流体容器内的压力泵; 以及集流端子，其设置在流体喷射孔的一侧，以通过使用导电流体作为介质以非接触的方式接收来自接触导线的电力。 根据本发明，由于导电流体通过流体注入孔向接触导线注入，以非接触的方式供给动力，所以不会发生供电装置和接触导线的磨损，因此成本 可以减少维护和修理。

    Structure for reducing tunnel micro pressure wave including air pipe
    38.
    发明授权
    Structure for reducing tunnel micro pressure wave including air pipe 有权
    减少隧道微压波包括空气管的结构

    公开(公告)号：US09291055B2

    公开(公告)日：2016-03-22

    申请号：US14516684

    申请日：2014-10-17

    Applicant: Korea Railroad Research Institute

    Inventor： Dong Hyeon Kim

    IPC: E21D9/14 ,  B61B13/10 ,  E21F1/00

    CPC classification number: E21F1/003 ,  B61B13/10 ,  E21D9/14

    Abstract: A structure for reducing a tunnel micro pressure wave is provided. The structure includes a hood structure formed in front of an entry of a railroad tunnel; and an air pipe section in which at least one air pipe is provided along the circumference of the hood structure, wherein the air pipe comprises a horizontal introduction section formed to be extended from an internal side of the hood structure toward a longitudinal direction of the hood structure, an outlet section formed on an external side of the hood structure, and an intermediate section connecting the horizontal introduction section and the outlet section through each other.

    Abstract translation: 提供了一种用于减小隧道微压力波的结构。 该结构包括形成在铁路隧道入口前面的罩结构; 以及空气管部，其中沿着所述罩结构的圆周设置有至少一个空气管，其中所述空气管包括水平导入部，所述水平导入部形成为从所述罩结构的内侧朝向所述罩的纵向延伸 结构，形成在发动机罩结构的外侧的出口部以及将水平引入部和出口部彼此连接的中间部。

    Tunnel excavation device
    39.
    发明授权
    Tunnel excavation device 有权
    隧道挖掘装置

    公开(公告)号：US09291054B2

    公开(公告)日：2016-03-22

    申请号：US14358470

    申请日：2012-05-31

    Applicant: Dong Hyeon Kim

    Inventor： Dong Hyeon Kim

    IPC: E21D9/10 ,  E21D9/08 ,  E21D9/11

    CPC classification number: E21D9/1066 ,  E21D9/087 ,  E21D9/0875 ,  E21D9/0879 ,  E21D9/1073 ,  E21D9/112

    Abstract: The invention relates to a tunnel excavation device, which includes an excavation head, a main body on which the excavation head is rotatably mounted, a motor provided in the main body and rotates the excavation head, and a controller for controlling the motor, wherein the excavation head includes a perforating means formed by maintaining a predetermined interval from the center of a body part, which has a front surface formed in the shape of a circular plate, to the outer surface of the body part, an injection means for injecting water and liquid nitrogen into the hole formed by the perforating means, and a plurality of cutters provided on the surface of the main body for crushing the bedrock.

    Abstract translation: 隧道挖掘装置技术领域本发明涉及一种隧道挖掘装置，其包括挖掘头，可旋转地安装挖掘头的主体，设置在主体中并使挖掘头旋转的马达和用于控制马达的控制器，其中， 挖掘头包括穿孔装置，该穿孔装置通过将具有形成为圆形板形状的前表面的主体部分的中心保持预定间隔而形成为穿过主体部分的外表面的喷射装置， 将液氮吹入由穿孔装置形成的孔中，以及设置在主体的表面上用于破碎基岩的多个切割器。

    ABSOLUTE POSITION DETECTION SYSTEM
    40.
    发明申请
    ABSOLUTE POSITION DETECTION SYSTEM 有权
    绝对位置检测系统

    公开(公告)号：US20140368837A1

    公开(公告)日：2014-12-18

    申请号：US14371672

    申请日：2012-05-31

    Applicant: Dong Hoon Kang

    Inventor： Dong Hoon Kang

    IPC: B61L25/02 ,  G01B11/14

    CPC classification number: B61L25/025 ,  G01B11/14

    Abstract: The present invention relates to an absolute position detection system. More particularly the present invention relates to a system for detecting an absolute position on a vehicle travel path. For example, disclosed is an absolute position detection system comprising: a plurality of pattern units arranged at a predetermined spacing on a vehicle travel path and having one or more first patterns and one or more second patterns having light reflectances that differ from each other; a pattern scan unit installed in a vehicle to scan each of the plurality of pattern units by laser beam and measuring light reflectance for each of the first and second patterns; a data processing unit for comparing the measured light reflectance and a preset reflectance light reflectance, and performing binary data processing on the result of the comparison to recognize each of the plurality of pattern units; and a position detection unit for detecting the absolute positions of the plurality of pattern units by means of the processed binary data and information on the distance between the plurality of pattern units.

    Abstract translation: 本发明涉及绝对位置检测系统。 更具体地，本发明涉及一种用于检测车辆行驶路径上的绝对位置的系统。 例如，公开了一种绝对位置检测系统，包括：在车辆行驶路径上以预定的间隔布置并具有一个或多个第一图案的多个图案单元和具有彼此不同的光反射的一个或多个第二图案; 安装在车辆中的图案扫描单元，用于通过激光束扫描多个图案单元中的每一个，并测量第一和第二图案中的每一个的光反射率; 数据处理单元，用于比较测量的光反射率和预设的反射光反射率，并对比较结果执行二进制数据处理以识别多个图案单元中的每一个; 以及位置检测单元，用于通过处理的二进制数据和关于多个图案单元之间的距离的信息来检测多个图案单元的绝对位置。

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