Abstract:
양안영상용 부호화기 및 이를 포함하는 모니터링 시스템이 개시된다. 상기 양안 영상용 부호화기는, 제1 입력 영상 및 제2 입력영상을 각각 다운 샘플링하기 위한 다운 샘플러; 움직임 보상을 위한 제1 복호화 영상을 추출하고, 다운 샘플링된 상기 제1 입력 영상을 움직임 벡터에 기초해서 부호화하여 제1 부호화 영상을출력하기 위한 제1 부호화기; 움직임 보상을 위한 제2 복호화 영상을 추출 하고, 다운 샘플링된 상기 제2 입력 영상을 움직임 벡터 또는 양안차 벡터 중 적어도 하나에 기초해서 부호화하여 제2 부호화 영상을 출력하기 위한 제2 부호화기; 상기 제1 부호화 영상 및 상기 제2 부호화 영상을 각각 B 프레임 분할하여 베이스 계층 비트열과 적어도하나의 시간적 향상 계층 비트열을 출력하기 위한 시간적 스케일러빌리티 인코더; 상기 제1 복호화 영상 및 상기 제2 복호화 영상을 업 샘플링하기 위한 업샘플러; 및 상기 업 샘플링된 영상들과 상기 제1 입력 영상및 상기 제2 입력 영상과의 차분 영상들을 각각 부호화하여 적어도 하나의 공간적 향상 계층 비트열을출력하기 위한 공간적 스케일러빌리티 인코더를 포함할 수 있다.
Abstract:
PURPOSE: A power supply system for an electric rail car having function for stabilizing voltage of a wire is provided to save manufacturing costs by forming a system supplying AC current for driving the electric rail car by using a scott transformer and an auto-transformer. CONSTITUTION: A scott transformer(11) receives AC voltage of 154KV from a power system, change it into AC voltage of 55KV, and then supplies it to an M and T phase. An autotransformer(AT) is connected to the scott transformer to compensate voltage drop. The autotransformer changes the AC voltage of 55KV into 27.5KV and supplies it to the electric rail car. The scott transformer and autotransformer are installed within A transformer substation(12). The autotransformer is installed in a SSP(Sub-Sectioning Post) or an SP(Sectioning Post).
Abstract:
PURPOSE: A durability test device of the connecting members for a railway vehicle is provided to set a variety of twisting shapes capable of appearing at connecting members during the operation of a railway vehicle by arbitrarily controlling the twisting of the connecting members. CONSTITUTION: A durability test device(100) of the connecting members for a railway vehicle comprises a base(110), a passenger-car model frame(210) and a driving unit(310). The passenger-car model frame is prepared on the top end of the base and comprises connecting members. The driving unit is installed at the lower part of the passenger-car model frame and moves the passenger-car model frame in every direction. The passenger-car model frame comprises a first body(212a) and a second body(212b) which correspond to each other. A connecting member is formed between the first body and the second body. Paths are formed in the side boards of the first body and the second body and a foothold is installed on their bottom so that the paths are connected to each other.
Abstract:
PURPOSE: An encoder for binocular image and a monitoring system containing the same are provided to generate bitstream of several levels by encoding video image and selectively transfer bitstream based on environment of a receiver terminal. CONSTITUTION: A temporal scalability encoder performs B frame division of a first encoding image and second encoding image. The temporal scalability encoder outputs bitstream of base layer and at least one bitstream of temporal scalability layer. An up-sampler(140) performs up-sampling of a first decoding image and second decoding image. A spatial scalability encoder(160) encodes differential image with the first and second input images.
Abstract:
PURPOSE: A system for monitoring a platform and a method thereof are provided to intellectually and quickly determine whether a situation is dangerous on the platform. CONSTITUTION: Pattern recognition learning about a dangerous situation on a platform about a neural network is performed(S100). Platform monitoring information including temperature determination camera information, stereo camera information, sensor information and train enter/exit information is collected(S210). The collected platform monitoring information is inputted to a neural network in which learning is completed(S220). A dangerous situation such as object lane falling, passenger insertion between doors, fire and passenger safety line invasion on a platform is determined based on an output result of the neural network(S230).
Abstract:
PURPOSE: A regeneration energy storage system of an electric railway vehicle is provided to store regeneration energy generated during regeneration braking of the electric railway vehicle, thereby preventing reduction of a change element of a wire voltage. CONSTITUTION: Power is provided through a pantograph(30). A power converting apparatus(50) controls speed of a train by controlling a voltage and a frequency supplied to a motor(40). An energy storage device(60) charges or discharges regeneration electric generated by regeneration braking. A control device controls charging/discharging of the regeneration energy and conversion between electric energy and kinetic energy by operation control.
Abstract:
A phase and frequency detector for controlling a converter is provided to remove influence of a noise included in a power source by rapidly estimating a necessary phase and frequency in a converter control. A voltage type converter includes a voltage controller(212), a first current controller(214), a second current controller(215), a first space vector modulator(216), a second space vector modulator(217), and a power converter(210). The voltage controller calculates a preset current. A phase angle estimation value calculated in a phase and frequency detector(100) for controlling a converter converts an output of a current detector into a current of d-q coordinate. An error of a converted current and the preset current is calculated in the first current controller and the second current controller. A feed pod control part(218) calculates a voltage of a steady state, and performs a feed pod control by a current included in a calculus of a reactance voltage.
Abstract:
A mock site system for simulating operation of unmanned rail system and method for generating mock-situation using the same are provided to train control staffs by virtually generating all kinds of the accidents. The image management database(110) stores image data (for example, the route, train, history, tunnel and surrounding environment etc). In order to represent imitation situations, the acoustic management database(120) stores necessary sound data. The input interface(I/F) part(130) performs a user and interfacing operation. The communications interface(I/F) part(140) performs the interfacing operation with the external device connected through the communications network. The controller(150) detects necessary image data from the image administration DB. The image display(160) indicates the virtually real-time transport condition according to the imitation operation information in the screen controller. The sound output part(170) outputs the acoustic according to the imitation operation information controller.
Abstract:
본 발명의 전력품질 보상시스템은 a) 전원에 병렬로 연결되어 고조파 전류를 보상하며 DC 링크 전압을 일정하게 유지하는 제1 인버터, b) 전원에 직렬로 연결되어 전압강하를 보상하는 제2 인버터, c) 제1 인버터와 제2 인버터가 공유하여 제1 인버터와 제2 인버터로 DC 링크 전압을 공급하는 DC 링크 전압원 및 d) 제1 인버터의 고조파 전류 보상 및 DC 링크 전압의 유지 동작과 와 제2 인버터의 전압강하 동작을 제어하는 제어부를 포함한다. 본 발명에 따른 전력품질 보상시스템은 병렬인버터와 직렬인버터가 하나의 DC 링크 전압을 공유함으로써 제어 효율성이 향상될 뿐만 아니라 고조파 전류를 보상할 수 있고 유효전력을 공급함으로써 전압 강하의 보상 및 역률 개선을 도모할 수 있다.
Abstract:
본 발명은 철도 차량 가선 전압 및 전류 측정 시스템에 관한 것으로, 보다 상세하게는 철도 가선의 전압 및 전류 등을 측정하여 분석하는 철도 차량 가선 전압 및 전류 측정 시스템에 관한 것이다. 본 발명은 가선(전차선)의 전압 및 전류를 측정하는 전압 및 전류 센서; 차량의 속도를 측정하는 속도 센서; 상기 전압 및 전류 센서, 속도 센서를 통해 입력된 전압 및 전류, 속도 데이터를 이용하여 가선(전차선)의 전력량, 역율, 전압, 전류, 속도, 고조파 전압 및 전류를 분석하는 전력 분석기와; 상기 전력 분석기로부터 데이터를 입력받아 모니터링하는 모니터로 구성되는 것을 특징으로 하는 철도 차량 가선(전차선) 전압 및 전류 측정 시스템으로 구성된다.