• 한국정보처리학회:학술대회논문집
• /
• 한국정보처리학회 2002년도 춘계학술발표논문집 (하)
• /
• pp.1203-1206
• /
• 2002

통합플랫폼 관리체재의 운용에 있어서 승객제어장치를 제어하고 감시하는 공항관리자에게는 공항관련 등의 상황통제시 항상 위험이 존재하고 있다. 비행기에 무인화를 도입하면 인간이 수동적으로 처리해야 하는 부분을 기계로 대체하면 보다 안전하게 되어 여러 위험도를 감소시킬 수 있는 해결책의 하나가 될 수가 있을 것으로 본다. 제안된 방법의 성능을 평가하기 위해, 탑승시스템을 조작하는 제어시스템의 컴퓨터 시뮬레이터를 만들어 수행해 보았다. 본 논문에서는 통합플랫폼 관리체재 하에서 열악한 손상조건에서도 탑승객의 불편을 주지 않고 비행기의 여러 가지 돌발상황에 따른 적절한 조치를 자동적으로 취해주는 마이크로프로세서를 이용한 탑승시스템을 설계하고 구현했다. 제안하는 시스템은 기존 시스템과 비교시 보다 정밀하게 탑승영역활동을 하였고 돌발시에도 비행기가 처한 상황에 따라 보다 적절한 조치를 취할 수가 있었다.

• 한국철도학회:학술대회논문집
• /
• 한국철도학회 2011년도 춘계학술대회 논문집
• /
• pp.1716-1721
• /
• 2011

The Public Address and Passenger Information System of Rolling Stock should be able to perform automatic announcements in connection with TCMS(Train Control and Monitoring System), common announcements and emergency announcements for safe operation and the passengers. CCTV(Closed Circuit Television) System also should be able to watch passenger compartment for safety. Those equipments are very important thing for train service and safety. but the installation of equipment is restricted by space, weight, modulation. therefore, Passenger Information Intergrated System(PIIS) is required to consider economical efficiency, technical trend, expansion and space insufficiency. and system based on IP network has to be considered as new PIIS. so PIIS could meet economical efficiency and expansion. and it could go further and share network with TCMS and others.

• 한국철도학회논문집
• /
• 제19권5호
• /
• pp.609-616
• /
• 2016

승객서비스 장치는 역정보 등 다양한 열차운행 정보를 제공하기 위해 설치된 승객 접점장치로 고장이나 오류 시 열차운행에 영향은 적지만 승객들은 큰 불편을 느끼게 된다. 이에 본 논문에서는 신뢰성기반 유지보수(RCM)를 운영자 입장에서 적용했던 기존 시각에서 벗어나, 승객 입장에서 중요장치인 승객서비스 장치를 분석대상으로 선정하였다. 서울도시철도공사의 데이터를 기초로 승객서비스 장치에 대한 고장분석 및 FMEA/FMECA수행, 심각-발생도 매트릭스 및 위험우선순위평가 결과를 기반으로 통합 설정기를 분석대상으로 선정하였으며, 와이블분포를 통해 고장패턴, 고장률 등 고장해석을 수행하였다. 이를 바탕으로 승객서비스 장치의 고장 최소화 방안을 제시하였다.

• 한국자동차공학회논문집
• /
• 제3권6호
• /
• pp.176-187
• /
• 1995

The problem of designing intelligent cruise control system for a longitudinal motion of an automobile, which is powered by internal combustion engines coupled to an automatic multispeed transmission, is considered. The basic concept is a vehicle-following system which maintains desired spacing between vehicles. This system actuates throttle with the information of the spacing error so as to maintain proper spacing and improve passenger ride comfort. In designing the controller, a modified controller, i.e, PID gain scheduling and fuzzy controller with fuzzy compensator was developed in order to overcome the nonlinearities of the automobile and obtain better performance. The computer simulation results illustrate that the better vehicle responses were obtained with the modified fuzzy controller and, under this controller, the vehicle responses were found to be relatively insensitive to parameter variations.

• 한국철도학회:학술대회논문집
• /
• 한국철도학회 2007년도 춘계학술대회 논문집
• /
• pp.1375-1381
• /
• 2007

Optimization system for convergence point control is required for train control system, this paper introduces the way of enhanced optimization for convergence point with data of intelligence full prediction system. Also the result of the intelligence full prediction system is useful for train control system at the convergence point and passenger will take more accurate information from the prediction system.

• 대한기계학회논문집A
• /
• 제24권3호
• /
• pp.718-727
• /
• 2000

Nowadays, most passenger cars equipped with automatic transmissions use torque converter clutches to reduce fuel consumption, and recently the slip control scheme of torque converter clutches is widely studied for the expansion of the operating region of torque converter clutches and thus for the further improvement of the fuel economy of vehicles. In this study, the analysis of the torque converter clutch system including the line pressure control unit of the automatic transmission and the actuating hydraulic control unit of the torque converter clutch is performed, and a feedforward controller and a fuzzy logic controller for its slip control are proposed. Also, for the slip controller to use the grade resistance information during control, an observer-based grade resistance estimator is designed. The performance of the designed grade resistance estimator and the slip controller is verified by dynamic simulations, and the effect of the torque converter clutch slip control on the fuel economy is examined using a driving cycle simulation.

• Transactions on Control, Automation and Systems Engineering
• /
• 제3권2호
• /
• pp.71-76
• /
• 2001

This paper deals with an estimation method for sideslip angle by using an unknown disturbance observation technique in 4WS passenger car systems. Firstly, a 4WS vehicle model with 3DOF is derived under the constant velocity and same tyres properties. The vehicle dynamics is transformed into the linear state space model with considering the external disturbances. Secondly, and unknown disturbance observer is introduced and its property which estimating the states of system without any disturbance information is shown. Lastly, the estimated sideslip angle of the 4WS vehicle system is verified through numerical simulation.

• 한국철도학회:학술대회논문집
• /
• 한국철도학회 2006년도 추계학술대회 논문집
• /
• pp.941-946
• /
• 2006

It followed in system development and SMRT(Seoul Metropolitan Rapid Transit Co)System reached to an automatic train operation(ATO) and driverless operation(DLM) from the manual operation due to the train driver. The train like the general bus or the car vehicle was not serial riding in a car and the Parallel concept which the numerous passenger rides in a car simultaneously occur frequently the charge of the train driver unmanned bitterly from existing manual handling was a possibility of doing, train open door control(ODM) which bites also ATO, it handles it minimized. Like this ATO/DLM, the control system which bites being a Wayside to Train communication for immediacy, it is a system of the Vital concept the immediacy of the citizen Data evil the radio information transmission and the train of the interface which is accurate from unmanned operation and, will decipher, will accomplish it will guarantee. It respects the passenger accident prevention and an air question environment improvement from subway platform and phul leys the screen door of Platform(PSD) with the fire tube frost it refers and part it treats and to sleep it does, ODM which bites is accuracy and immediacy of altitude and when seeing from the viewpoint which demands the trust of altitude, ODM system the trust of car incest interface in the equipment construction which is safe and the comparative analysis back of the system analysis against the control which bites and case study and other subway system it leads from the research which it sees and signal - train in base grudge to sleep it contributes it does.

• 한국산학기술학회논문지
• /
• 제16권5호
• /
• pp.3610-3618
• /
• 2015

도시철도 차량 및 역사 내 혼잡도가 최고 220%를 나타내고 있다. 특히 방향별 동선의 충돌로 인해 보행자의 이동저항이 급속히 증가해 통행시간 증가, 안전사고 발생 등 도시철도 역사의 이용효율을 저해하는 요인으로 작용하고 있다. 이러한 문제를 해결하고자 본 논문에서 도시철도 이용객의 역사 내 이동속도 및 쾌적성 향상을 위한 혼잡관리 모형을 이용한 도시철도 이용객 동선유도시스템을 제안한다. 이를 위하여 반복혼잡/비반복혼잡을 고려할 수 있는 혼잡관리 모형을 구성하셨고, 미들웨어시스템, 제어시스템, 동선유도구동시스템으로 구성된 동선유도시스템의 기본설계를 수행하였다. 동선유도시스템은 외부데이터를 알고리즘에서 사용가능한 형태로 변경하는 미들웨어시스템 단계와 실시간 데이터 및 과거 데이터를 통해 혼잡관리 알고리즘을 수행하는 단계와, 산정된 혼잡관리 알고리즘을 기반으로 LED표시장치, 방향유도 표시기, 이동식 가이드레일 등을 제어하는 제어시스템의 단계와 제어시스템의 정보를 기반으로 LED표시장치, 방향유도 표시기, 이동식 가이드레일 등의 장치를 실제로 구동하는 동선유도 구동장치 단계와 이용자가 실제로 접하는 LED표시장치, 방향유도 표시기, 이동식 가이드레일 등의 동선유도장치로 이루어진다. 향후 본 기본설계를 기반으로 시스템의 상세설계를 통해 도시철도 역사의 구조 및 지점에 따른 다양한 동선유도장치의 시작품을 제작하고 이를 제어할 수 있는 동선유도제어 모듈을 개발할 예정이다.

• 한국항공운항학회지
• /
• 제30권2호
• /
• pp.55-60
• /
• 2022

A PSU (passenger service unit) is mounted on passenger seats in a cabin on an aircraft and consists of a crew call lamp, a reading lights, an information display lamp, an emergency oxygen generator, and an emergency oxygen mask. It is a safety device for providing convenience to passengers and providing oxygen to passengers in an emergency. This paper is a study on emergency oxygen supply systems and light systems of aircraft PSUs and a control device was developed to operate the system by analyzing the B767-300 aircraft's PSU circuit diagram. And the temperature generated by the B777-200ER aircraft's emergency oxygen generator was also measured by operating it directly. Through this, precautions for explaining the operation of an oxygen mask in an emergency were described and improvements were presented. Data acquired in these research processes can be used in the future to develop aircraft PSU (passenger service unit) and emergency oxygen generators.