Abstract:
PURPOSE: An air cleaner is provided to exhaust external air in which impurities of various sizes are absolutely removed by the combination of an electrostatic precipitation method and a non-power cyclone method. CONSTITUTION: An air cleaner(1) comprises a main body(2), a cyclone flow forming member(20), a discharge electrode(100), and an air filter(200). In the main body, an axial direction-penetrating hole(10) and an outlet are formed. The cyclone flow forming member arranged inside the axial direction-penetrating hole rotatably, and consists of a shaft(21), and blades(22). The shaft is installed to be perpendicular with the direction of a flow path. The blades guide flow of inflowing air. The discharge electrode is attached to at least one blade, and to have one polarity of positive polarity of negative polarity. The air filter is installed to the outlet, and has opposite polarity with the discharge electrode. The air filler collects micro dusts in air penetrated through the cyclon flow forming member.
Abstract:
본 발명은 도시철도에 사용되는 전력설비의 절연 진단 장치를 개시한다. 개시된 본 발명의 SHF 전자파 대역 검출을 포함하는 도시철도 전력설비 절연 진단 장치는, 전력기기의 부분방전 시 방사되는 전자파를 SHF 대역까지 검출하기 위한 RF 센서부;와, 상기 RF 센서부로부터 전자파 감지 신호를 입력받아 로그 스케일링 변환한 전자파 로그 신호를 출력하는 RF 신호 처리부;와, 상기 전자파 로그 신호와 외부 전원으로부터 검출된 위상 동기 신호를 중첩하여 부분방전 분석을 위한 위상 중첩 신호를 출력하는 디지털 신호 처리부;를 포함하여, SHF 전자파 대역까지 포함하는 부분방전 신호를 검출하는 것에 의해 도시철도 전력설비의 부분방전 검출 측정 신뢰성을 향상시키고 도시철도 전력 설비의 안정성을 증대시킨다.
Abstract:
PURPOSE: An intelligent video monitoring simulation searching method is provided to execute a simulation according to a time sequence by storing sensor data and video data in real time. CONSTITUTION: The video data and sensor data of a camera is stored in a remote central data storage unit(S1). When event occurs, the center data storage unit stores metadata by creating the meta data which is interlocked with the video and sensor data(S2). The desired data is searched by the meta data(S3). The searched data is simulated according to a time sequence(S4). The video data is stored in the center data storage unit. The sensor data is stored in the center data storage unit through a sensor gateway connected to the sensor.
Abstract:
PURPOSE: A method for controlling the transmission power of a wireless data communication system is provided to remove the same frequency interference from a neighboring ground wireless transceiver. CONSTITUTION: A communication circuit between ground wireless base stations with the plurality of ground wireless transceivers which is installed according to the movement of high speed movement body is established. The wireless base station analyzes the receiving sensitivity of a frequency which is transmitted from the mobile wireless transceiver of the high mobile body(S2). The ground wireless station grasps the location information of the mobile wireless transceiver(S3).
Abstract:
PURPOSE: An intelligent synthetic monitoring system based on an urban railway is provided to manage efficiently manpower and a system by rapidly informing an emergency state at an urban railway station to a manager. CONSTITUTION: A camera(100) is installed at an urban railway station or a railway vehicle. An intelligent image analysis unit(110) generates event information by analyzing the images photographed through the camera when sensing a movement of an object. An optical transmission unit(112) transmits the images to a synthetic control room when the event information is generated from the intelligent image analysis unit.
Abstract:
PURPOSE: A device and method for monitoring a line of a subway in real time are provided to prevent an accident by previously sensing the fine abnormality of a line. CONSTITUTION: A camera(100) for monitoring a line is installed to correspond to the traveling direction of a vehicle. A line analyzer(200) is connected to the camera and is arranged in the vehicle to analyze the state of a line. A vehicle RF transceiver(300) is installed in the vehicle to wirelessly transmit the line analysis result of the line analyzer. A ground RF transceiver(400) is arranged in a line to receive the line analysis result and transmits the line analysis result to a ground control center(C). The vehicle RF transceiver is wirelessly connected with one or more ground RF transceivers.
Abstract:
PURPOSE: A station guidance broadcasting system in a subway passenger room is provided to offer various information to passengers such as historical information related with a subway station. CONSTITUTION: A receiver(110) is included in a subway passenger room. The receiver receives reference information of a transmitter. A controller(120) is connected to the receiver. The controller transmits the content corresponding to the received reference information. An output unit(130) is installed in the passenger room while being connected to the controller. The output unit outputs the transmitted content in order to be recognized by the passengers.
Abstract:
본 발명은 열차의 송신출력 제어에 의한 무선 통신 시스템에 관한 것으로, 무선링크정보와 지상무선송신데이터를 송신하고, 차상무선송신데이터를 수신하여 처리하는 지상 무선통신장치와, 상기 지상 무선통신장치에서 무선링크정보를 수신하고, 상기 무선링크정보를 토대로 무선 데이터의 송수신 허용 여부를 결정한 후 상기 차상무선송신데이터를 전송하는 차상 무선통신장치로 구성되는 것을 특징으로 한다. 따라서, 본 발명은 비정상적인 전파 과밀 조건이 발생할 경우에 주채널과 예비채널을 통해 무선 통신이 이루어지도록 송신채널을 제어함으로써 복수 개의 열차에 있는 차상무선 통신장치와 각 역에 설치된 지상장치의 지상무선 통신장치 간에 모두 정상적인 통신이 가능하도록 하여 비상 상황에서의 안정적인 시스템 운영에 기여할 수 있고, 전파 과밀 조건에서도 밀집된 2대의 열차가 모두 지상무선 통신장치와 각기 다른 채널로 무선 통신이 이루어져 통신이 안정적으로 유지될 수 있어 비정상적인 열차 과밀 지역에서도 열차가 안정적으로 운행될 수 있도록 한다. 무선 통신 시스템. 지상무선 통신장치, 차상무선 통신장치, 무선링크정보 생성기, 송신채널 제어기