Abstract:
PURPOSE: A multimedia content updating system of a train is provided to transmit a fixed part of data of the same large capacity to trains, thereby efficiently using wireless resources. CONSTITUTION: A ground image information server(100) partitions multimedia content by a fixed unit. The ground image information server transmits the partitioned multimedia content to trains on a track of a fixed area. An on-board image information server(300) receives the partitioned multimedia content through a wireless network. The on-board image information server displays recovered multimedia content on the display panel of a vehicle.
Abstract:
PURPOSE: An auto-monitoring apparatus and a method for passenger quarters and a platform video of a railroad monitoring center are provided to help a user to automatically monitor passenger quarters and a platform by interlinking the image of a passenger quarters and a platform with each other. CONSTITUTION: Image receiving units(10,11) are installed in passenger quarters of a railway car and the specific location of a platform. A display unit(20) outputs an image signal on a large monitor of a railway control center. An image switch unit(30) selectively outputs the images of the display unit on the display unit according to the switch control signal. An image controller(40) controls the image of the passenger quarters and the platform according to the train operation information and the emergency situation of the railroad car and the platform.
Abstract:
PURPOSE: A horizontal angel control device and a method thereof are provided to effectively transmit and receive a wireless signal in 18~19Ghz, which has superior directivity, by controlling the horizontal angle of a directivity antenna according to a calculated horizontal moving angle. CONSTITUTION: A receiving module(110) transfers a received wireless signal to a location information extraction module(120) through a directional antenna. The location information extraction module transfers the location information of the extracted overground wireless transceiver and the location information of a moving train vehicle to an angle calculation module(130). The angle calculation module calculates a horizontal feed angle towards a wireless transceiver on the ground. The calculated horizontal moving angle is transferred to a control module(140). The control module controls the horizontal angle of the directional antenna as the horizontal moving angle transmitted from the angle calculation module.
Abstract:
광대역 이더넷 데이터를 송수신하기 위한 데이터 송수신장치 및 데이터 송수신방법이 개시된다. 본 발명에 따른 데이터 송수신장치는 DVB-T/H 방식을 이용한 데이터 송수신장치에 있어서, MPEG 2 전송스트림을 직교 부호화 주파수분할 다중(Coded Orthogonal Frequency Division Multiplexing, COFDM) 방식으로 변조하여 외부로 전송하기 위한 DBV-T/H 변조모듈을 포함하는 데이터 송신모듈과, 외부에서 수신된 COFDM 신호를 직교 부호화 주파수분할 다중(Coded Orthogonal Frequency Division Multiplexing, COFDM) 방식으로 복조하는 DVB-T/H 복조모듈을 포함하는 데이터 수신모듈을 한쌍으로 구비하는 것을 특징으로 한다. 이를 통해 양방향 데이터 전송이 가능하며, 다중 경로 페이딩이 심한 환경에서 에러에 강한 데이터 송수신이 가능하다.
Abstract:
PURPOSE: A wireless sensor network system and an operating method thereof are provided to monitor battery information and task information in real time, thereby preventing shut down of the wireless sensor network system. CONSTITUTION: A sensor node(110) senses recognition information for an object and surrounding environment information in real time. The sensor node checks a battery(114) and a state of the battery. A central management system(130) is connected with a gateway through a communication network. A control unit(118) calculates a modified remaining amount of battery power according to a charging and remaining amount of battery power by a measuring device(117) of a sensing module(116). The central management system receives the modified remaining amount of battery power.
Abstract:
PURPOSE: A multi gateway device and a method processing data are provided to transmit sensing data to a gateway through each appointed multi channel from a plurality of zigbee terminal and successively store the data in a memory within the gateway, thereby preventing collision about receiving information through each channel. CONSTITUTION: A MCU(Micro Controller Unit) of gateway receives sensing data through multi channel of a receiving unit if a plurality of zigbee terminals transmits the data to gateway through designated channel(S300,S310). A demodulation unit demodulates the data. The demodulates unit successively stores the data in a memory(S330). The gateway demodulates the data at a modulation unit in idle time. The gateway provides the data to higher system through a transceiving unit(S320).
Abstract:
PURPOSE: An on-board guidance system of a train is provided to help avoid the congestion on boarding by informing the congestion of the compartment of the train. CONSTITUTION: A data transmitting unit measures the congestion of passengers at each compartment through the information on boarded passengers. The data transmitting unit transmits the congestion of passengers and an image to a central control center. An image analyzing unit(200) transmits boarding guidance data based on a still image to a destined station. A display device(300) displays the boarding guidance data. The display device is installed at a place where passenger compartments(101,102) of the train are stop.
Abstract:
PURPOSE: An alarm device for the opening and closing time of a door for a manless railway vehicle is provided to enable a passenger to know the closing time of a door through a counter, since a time display displays the opening time of the door. CONSTITUTION: An alarm device for the opening and closing time of a door for a manless railway vehicle comprises an image monitoring camera(10), a video image server(20), a controller(30), and a timer(40). The image monitoring camera is installed around a door and collects the state of passengers. The video image server treats images inputted from the image monitoring camera. The controller analyzes the movement and the density of the movement of the passengers. The controller determines the opening and closing time of the door.
Abstract:
본 발명은 도시철도차량 유지보수 정보화 기술지원 시스템에 관한 것으로써, 철도차량의 부품 데이터 및 상기 부품의 3차원 형상정보 데이터를 저장하고 관리하는 데이터베이스서버와; 상기 철도차량의 검수자 및 작업자가 유지보수업무 수행 중 상기 데이터베이스서버에 접근시에 상기 부품에 대한 3차원 형상정보 데이터를 검색하고 그 결과를 보여주는 유지보수지원시스템;으로 구성되는 것을 특징으로 한다. 본 발명에 따르면 기술 추세를 반영하여 도시철도유지보수 작업시 작업자가 3차원 형상정보시스템의 도움을 받아 효율적인 유지보수작업을 할 수 있도록 하여 도시철도분야의 유지보수정보화에 활용하여 신뢰도 및 유지보수편리성을 향상시킬 수 있다. 도시철도, 차량, 3차원, 형상
Abstract:
본 발명은 바코드 또는 RFID와 같은 인식표시기와 이들을 인식가능한 인식부가 구비된 무선단말기를 사용함으로써 정확한 검수작업 결과를 등록가능하게 하여 전동차의 이력정보를 실시간으로 조회가 가능하고 자재청구를 자동으로 수행함으로써 전동차 검수시간을 줄이고 효율적인 전동차 검수가 가능한 전동차 검수시스템에 관한 것으로; 전동차의 각부를 구성하는 장치 및 부품에 대한 정보가 구비되는 인식표시기와; 상기 인식표시기에 해당하는 인식표시기데이터가 저장되는 데이터베이스를 운영 관리하는 중앙서버와; 검수자의 검수작업시에 상기 인식표시기의 정보를 읽어들이는 인식부가 구비되어 상기 인식표시기의 정보를 읽어들이고, 그에 대한 인식표시기데이터를 상기 중앙서버에 접속하여 상기 중앙서버의 인식표시기데이터를 확인할 수 있는 검수자 무선단말기;로 이루어진 것을 특징으로 한다. 본 발명에 따르면 바코드 또는 RFID태그와 같은 인식표시기를 전동차의 장치 및 부품에 구비하여 검수작업 중에 실시간으로 해당 차량 또는 장치에 대한 이력정보를 정확하게 제공하여 검사자가 전동차검사를 함에 있어 보다 효율적인 검사를 수행하고, 작업자가 정확한 위치에 해당하는 작업을 할 수 있도록 작업지시를 할 수 있는 효과가 있다. 전동차, 검수, 바코드, RFID, 부품