• Proceedings of the Korea Contents Association Conference
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• 2019.05a
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• pp.325-326
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• 2019

서비스화(servitization)와 공유경제 패러다임이 확산되면서 서비스 산업에서도 IT기술을 융합시킨 다양한 형태의 새로운 비즈니스가 성공적으로 정착되고 있다. 특히 대중교통 서비스 산업에서 우버(Uber) 택시는 IT기술과 공유경제 개념을 절묘하게 접목시킨 새로운 차원의 성공적인 공유택시 비즈니스 모델로 자리매김하였고, IT기술을 적용한 교통예약 소프트웨어는 공유택시의 차별적 경쟁우위를 확보하기 위한 중요한 수단이 되고 있다. 공유택시 예약 프로그램은 택시이용자에게 신속하고 편리함을 제공할 뿐만 아니라 에너지 절약, 교통체증으로 인한 스트레스 완화 등의 많은 사회적 혜택과 이익을 제공하고 있기 때문에, 여러 분야에서 다양한 연구가 진행되고 있다. 최근 중국에서는 보다 진보된 공유택시 예약 프로그램이 공유택시에 접목되면서 공유택시 이용객이 급히 증가하고 있으며, 이와 함께 공유택시 차별화에 핵심적인 역할을 하는 소프트웨어 시장의 경쟁도 가속화 되고 있다. 그러나, 이용객을 대상으로 강력범죄 발생빈도 증가와 이로 인한 부정적인 여론의 급속한 확산은 공유택시 산업발전에 심각한 방해요인이 되고 있지만, 근본적인 해결방법에 관한 연구는 미비한 실정이다. 따라서 본 연구는 공유택시 예약 프로그램에 이용객의 안전을 위한 컨텐츠 개발과 적용을 통해 공유택시 이용객의 불안해소와 공유택시 산업 발전에 기여할 수 있는 방법을 제안하고자 하였다. 연구방법은 중국현지의 공유택시 이용객을 대상으로 실증연구를 진행할 계획이며, 고객여정맵(CJM)과 Kano 분석을 통해 결과와 시사점을 도출할 계획이다.

• Journal of Korea Multimedia Society
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• v.21 no.10
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• pp.1203-1210
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• 2018

As the use of public transportation is increasing, a service considering the convenience of passengers is being launched utilizing the Internet (IoT) data collected through the bus information system. However, the bus information system only provides limited information such as the current location of the bus (GPS) and the expected arrival time at the stop. Additional IoT sensor information is needed to provide various services for the safety and convenience of passengers. In this paper, to improve the safety and convenience of passengers, we have added the boarding doors imaging sensor, temperature and humidity sensors, and sensor for measuring the number of passengers. The proposed IoT bus system can attach various sensors to buses to provide high-quality safety services to passengers.

• Transactions of the Korean Society of Automotive Engineers
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• v.5 no.4
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• pp.142-151
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• 1997

In order to reduce passenger injuries in side collisions, car makers are developing a side impact airbag system while Volvo has already adopted. This study examines dummy injury reduction effect of a side airbag system using full car side impact simulation according to FMVSS 214 test procedure. The simulation result without side airbag shows a good correlation with test data. The folded airbag simulation is carried out to check main design factors. Through the simulation with side airbag module integrated in the seat frame, it is found that the side airbag system provides a substantially enhanced protection for car occupants in side collisions.

• Proceedings of the KSR Conference
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• 2001.10a
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• pp.198-204
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• 2001

Train crashes involve complex interaction between deformable bodies in multiple collisions. The purpose of this study is to suggest the effective analytical procedure using hybrid model for the crashworthiness of motorized trailer of high speed train. The hybrid approach, with very short modeling times and reduced computation times to extract the global behaviour and to perform a pre-optimization of the considered structure. Firstly, various types of crash events are investigated and the conditions for numerical simulation are defined. In this paper, the structural crashwonhiness of Korean High Speed Train trailer was examined through FE analysis. Crash analyses on energy absorbing part and safety zone were carried out to determine each section force. Rollover analysis was performed to observe the amount of intrusion in the passenger's area in case of rollover accident.

• Proceedings of the KIEE Conference
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• 2015.07a
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• pp.1581-1582
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• 2015

최근 많은 승객을 수공하는 대중 교통시스템의 안전에 대한 중요성이 더욱 대두되고 있으며, 고속화된 철도차량 또한 이를 피해갈 수 없다. 현재 철도차량의 사고 방지를 위해 많은 연구가 이루어 지고 있으며, 차량기지의 검수설비 및 검수시스템이 자동화되어 많이 발전되었다. 그 중 차축 초음파 탐상은 각 차량기지에 설치된 A-Scan 초음파 방식과 Phased Array 초음파 방식의 두가지 방식의 장비를 이용하여 차축 초음파 탐상이 이루어 지고 있다. 본 논문에서는 초음파 방식 중 철도차량 차축 결함 검출을 위한 A-Scan 탐상 방식과 Phased Array 탐상방식에 대하여 비교 분석하였다.

• Transactions of the Korean Society of Automotive Engineers
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• v.20 no.5
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• pp.1-7
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• 2012

Automobile airbag deployment process has been studied with MADYMO software. Based on the FMVSS208 and USNCAP(United States New Car Assessment Program) regulations, four parameters were chosen for the design improvement with reference to the 5th percentile female passenger dummy: time to fire, vent hole size, tether length and tank test pressure of inflator. Sensitivity analyses based on orthogonal arrays show that enhanced protection of small females can be achieved with improved USNCAP rating within the boundary of FMVSS 208.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2014.10a
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• pp.20-22
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• 2014

선박, 해양플랜트에 적용되는 PAGA System 는 선내 모든 선원 및 승객에 대하여 정보전달 기능뿐 아니라 위급 상황 발생시 신속한 상황 전달 및 대피를 위한 안전상의 이유로서 매우 중요시 되고 있다. PAGA 의 핵심이 되는 Audio Coverage 의 경우, 초기 설계단계에서 해석을 통해 스피커 배치가 이루어지는데, 본 논문에서는 이러한 PAGA Audio Coverage 관련 요구조건과 합리적인 적용방안, 해석 및 평가 방안에 대하여 사례를 통해 소개하고자 한다.

• Proceedings of the KSR Conference
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• 2008.06a
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• pp.553-558
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• 2008

Advancement in information technology have enabled applying vision sensor to railway, such as CCTV. CCTV has been widely used in railway application, however the CCTV is a passive system that provide limited capability to maintain safety from boarding platform. The station employee should monitor continuously CCTV monitors. Therefore immediate recognition and response to the situation is difficultin emergency situation. Recently, urban transit operators are pursuing applying an unattended station operation system for their cost reduction. Therefore, an intelligent monitoring system is need for passenger's safety in railway. The paper proposes a vision based monitoring system and object detection algorithm for passenger's safety in railway platform. The proposed system automatically detects accident in platform and analyzes level of danger using image processing technology. The system uses stereo vision technology with multi-sensors for minimizing detection error in various railway platform conditions.

• Proceedings of the KSR Conference
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• 2006.11b
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• pp.62-65
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• 2006

From the research which it sees it tried to observe from the comfort viewpoint where the passenger feels the high-speed railway car safety standard which it is see clearly from the domestic railroad safety law. It presents a minimum safety standard, the passengers being an safety most, the place where to sleep receive the service which is comfortable from the railroad safety law and they do there is a most big difference. It analyzed the correlation of the comfort where the passenger feels the vehicle efficiency standard which it is presenting from railroad safety law 59th clause and from the research which it sees consequently.

• Proceedings of the KSR Conference
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• 2002.10a
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• pp.396-407
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• 2002

New Electric Multiple Units that will be released in the rolling stock market are required to meet regulations of reinforced safety and conveniences for passengers. For those reasons, Vehicle purchasing cost to be increased will be unavoidable. However, The reduction of operating cost by employing effective and efficient design on the EMU at initial phase will be expected. Hence, Vehicle purchasing shall be determined to take into consideration of purchasing cost vehicle at first stage and operation cost appropriately. In order for introducing method to presume such costs, this document will show Life Cycle Cost on vehicle and its applicability.