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    • 5. 发明申请
    • MONITORING SYSTEM USING UNMANNED AIR VEHICLE WITH WIMAX COMMUNICATION
    • 使用无线空中车辆与WIMAX通信的监控系统
    • US20110010025A1
    • 2011-01-13
    • US12921138
    • 2008-06-25
    • Jai Hong EuJin Seok Heo
    • Jai Hong EuJin Seok Heo
    • G05D1/00
    • G01S5/0027G01S19/39
    • Provided is a monitoring system using an unmanned air vehicle communicated based on a WiMAX communication scheme. The monitoring system includes an air vehicle and a relay unit. The air vehicle includes a photographing unit for capturing on-scene image information of a current flying area, and a global positioning system (GPS) receiver for receiving GPS information of the current flying area. The air vehicle transmits the on-scene image information and the GPS information, wirelessly. The relay unit remotely controls the air vehicle by receiving a travel command signal having information on a destination of the air vehicle, wirelessly transmits the travel command signal to the air vehicle based on the WiMAX communication scheme, and wirelessly receives the on-scene image information and the GPS information from the air vehicle based on the WiMAX communication scheme.
    • 提供了一种使用基于WiMAX通信方案进行通信的无人机的监视系统。 该监视系统包括一个空中飞行器和一个中继单元。 该空中交通工具包括用于捕获当前飞行区域的现场图像信息的拍摄单元和用于接收当前飞行区域的GPS信息的全球定位系统(GPS)接收器。 空中车辆以无线方式发送现场图像信息和GPS信息。 所述中继单元通过接收到具有关于所述机动车辆的目的地的信息的行驶指令信号来远程控制所述空中交通工具,基于所述WiMAX通信方式将所述行驶命令信号无线地发送到所述机动车辆,并且无线地接收所述现场图像信息 以及基于WiMAX通信方案的来自机载车辆的GPS信息。
    • 8. 发明授权
    • Silencer for reducing acoustic noise of fuel cell system
    • 消声器用于降低燃料电池系统的噪音
    • US08794377B2
    • 2014-08-05
    • US13585909
    • 2012-08-15
    • Jin-seok HeoWon-ho LeeYoung-jae KimJong-rock Choi
    • Jin-seok HeoWon-ho LeeYoung-jae KimJong-rock Choi
    • F01N1/02F01N1/08F01N1/00
    • F01N1/02F01N1/023F01N1/089H01M8/04082
    • A silencer installed in a fuel cell system includes a plurality of expansion chambers connected to a predetermined apparatus of the fuel cell system, wherein the plurality of expansion chambers serially reduces acoustic noise of air discharged from the predetermined apparatus and a resonator connected to an expansion chamber of the plurality of expansion chambers, wherein the resonator reduces acoustic noise received from the expansion chamber in another frequency band, which is different from a frequency band of the acoustic noise reduced by the plurality of expansion chambers, where one of the plurality of expansion chambers comprises an inlet pipe which receives air from the predetermined apparatus, another of the plurality of expansion chambers comprises an outlet pipe which discharges air flowed into the plurality of expansion chambers, and an intermediate pipe is disposed between the plurality of expansion chambers.
    • 安装在燃料电池系统中的消声器包括连接到燃料电池系统的预定装置的多个膨胀室,其中多个膨胀室串联地减少从预定装置排放的空气的声学噪声和连接到膨胀室的谐振器 的多个膨胀室中的一个,其中所述谐振器减小在另一频带中从所述膨胀室接收的声学噪声,所述另一频带不同于由所述多个膨胀室减小的声学噪声的频带,其中所述多个膨胀室 包括从所述预定装置接收空气的入口管,所述多个膨胀室中的另一个包括排出流入所述多个膨胀室的空气的出口管,并且在所述多个膨胀室之间设置中间管。