• Proceedings of the KIEE Conference
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• 1987.11a
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• pp.53-56
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• 1987

Gyroscope is a key sensor for inertial navigation system (INS) which is a navigational instrument necessary to guide and control a free vehicle, and an important instrument for defense, aeronautical, and space industries that is and will be actively involved. In this study, design parameters, scale factor and linearity, of torquer which is one of the components of two degree of freedom dynamically tuned gyroscope (DTG) are presented. The magnetic circuit of torquer is so complicated that it is difficult to analyze it with analytic method. Thus these parameters are calculated by using finite element method with analysis of magnetic vector potential for axisymmetric 3-dimension magnetic field.

• Transactions of the Korean Society of Mechanical Engineers B
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• v.29 no.1 s.232
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• pp.35-45
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• 2005

TR-E2 configuration designed by Bell Textron was tested in KARI 1-m wind tunnel. To explore aerodynamic characteristics for the given configuration, a $12\%$ scaled model was fabricated and tested. Wind tunnel test for TR-E2 had been performed by changing the incidence angles of wing and deflection angles of control surfaces. Test result showed that the lower wing incidence angle has more favorable lift to drag ratio compared with original design. Longitudinal and directional characteristics of TR-E2 were found to be stable for the pitch and yaw motions. However, the lateral stability of TR-E2 is not stable for certain control surface deflection.

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2008.04a
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• pp.100-101
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• 2008

• Information and Communications Magazine
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• v.25 no.7
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• pp.3-9
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• 2008

오늘날 자동차의 보급과 IT기술의 급작스러운 발전은 텔레매틱스라는 새로운 기술 분야를 창출시켰다. 텔레매틱스 서비스는 자동차 안의 차량 단말기를 통하여 자동차와 운전자에 필요한 다양한 형태의 정보 서비스를 제공해 준다. 본고에서는 텔레매틱스 기술을 활용한 차량 및 운전자 정보관리 시스템인 VDMS (Vehicle and Driver Management Systems)에 대해 기술하고자 한다. VDMS 시스템은 차량 내 센서들을 통해서 차량의 위치, 차량의 상태, 차량의 운행, 차량의 진단 정보를 추출하여 저장하는 차량정보 추출 및 저장 시스템과 수집된 운행정보를 분석하여 운행 패턴정보와 통계정보를 제공해주는 VDMS 정보관리 및 Visualization으로 구성된다.

• Journal of the korean Society of Automotive Engineers
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• v.26 no.3
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• pp.35-38
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• 2004

이미 알려진 바와 같이 차세대 차량에 채용될 동력 시스템의 연구개발이 배출가스 규제에 대한 배기 성능의 획기적 개선에 집중되고 있는 한편, 포괄적 친환경 차량 개발 또한 일반의 관심을 끌고 있다. 현재에 이르기까지 배출가스 규제치 즉, 대기로 배출되는 질소산화물(NOx), 입자상물질(Particulate Matter, PM) 및 미연탄화수소 등에 대한 정량적 규제치의 만족여부가 차량의 친환경 여부를 가리는 척도로 주로 인식되어 왔으나, 금후 보다 본격적으로 완성차량 조립을 위한 전 제품의 제조과정으로부터 차량 폐기까지를 총괄한 포괄적 환경 영향 평가가 필수 불가결한 요소로 등장하리라 예측된다. (중략)

• Proceedings of the KIEE Conference
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• 2002.04a
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• pp.103-105
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• 2002

본 연구에서는 홀소자를 이용한 저가형 엔코더와 제어기를 제안하고 이를 통한 연속적인 회전자 위치추정을 통해 최적의 스위칭 온/오프시점을 결정함으로서 저속 전기자동차 구동용 SRM의 기동특성과 주행성능을 실험을 통해 확인하였다.

• 도로교통
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• s.72
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• pp.18-25
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• 1997

일본은 ITS기구를 ITS JAPAN이라 하지 않고 VERTIS라 한다. 아시아, 태평양 권역권은 VERTIS가 중심이 되어, 여기의 영향권 안에 들어가 있는 것이 현실이다. 내년은 서울에서 ITS세계대회가 열린다. 그렇다면 ITS KOREA는 어떻게 되고, 미구에 발족될 ITS AUSTRALIA는 어떻고, ITS CHINA는 어떻게 될 것이냐. 그것들이 전부 VERTIS의 영향권에 들어가야만 할 것이냐, 문제점은 있다. 이런 주위의 여건 속에 놓여 있는 일본은 ITS를 어떻게 받아 들이고 있고 어떤 사람들이 ITS를 움직이고 있으며, ITS세계회의 참가 홍보작전은 어떻게 전개하며 그 사람들은 궁극적으로 목표를 어디에 두고 있는 것일까. 이런 것들을 알아 보고자 이 VERTIS 특집을 낸다.

• 연구논문집
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• s.22
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• pp.27-38
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• 1992

We deals with stationary layout control system of AGV. It is a intelligent control system to he wholly charged control PC a layout information and guided command and to be controlled a vehicle driving, steering, safety of natural functions of AGV. Fieldbus concentrator of stationary layout control system serves control command from control PC and status information of AGV. Telegram software monitors transmitted command and status information through IR(JnfraRed) modem. Especially it is possible to easily network to use not an exclusive controller of AGV but personal computer(PC) when communicate and interface a different kind of controller.

• Proceedings of the KSR Conference
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• 2009.05b
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• pp.323-337
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• 2009

This paper researched the adiabatic characteristic, safety and sound insulation characteristic of rolling stock window pane type and transition process of korean train vehicle window glass, and also including investigating a hereafter course of development. The window pane have provided the romantic feeling and the external scenery of train travel to the passenger in period of korea 110 year railway history. From the adiabatic viewpoint, this paper reviewed heat conductivity(U-value) and solar factor according to window pane type, including the safety and sound transmission loss of window pane.

• KIPS Transactions on Software and Data Engineering
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• v.10 no.3
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• pp.99-108
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• 2021

There are unrestricted conditions on the driver's face inside the vehicle, such as changes in lighting, partial occlusion and various changes in the driver's condition. In this paper, we propose a face identification system in an unrestricted vehicle environment. The proposed method uses a near-infrared (NIR) camera to minimize the changes in facial images that occur according to the illumination changes inside and outside the vehicle. In order to process a face exposed to extreme light, the normal face image is changed to a simulated overexposed image using mean and variance for training. Thus, facial classifiers are simultaneously generated under both normal and extreme illumination conditions. Our method identifies a face by detecting facial landmarks and aggregating the confidence score of each landmark for the final decision. In particular, the performance improvement is the highest in the class where the driver wears glasses or sunglasses, owing to the robustness to partial occlusions by recognizing each landmark. We can recognize the driver by using the scores of remaining visible landmarks. We also propose a novel robust rejection and a new evaluation method, which considers the relations between registered and unregistered drivers. The experimental results on our dataset, PolyU and ORL datasets demonstrate the effectiveness of the proposed method.