• 로봇학회논문지
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• 제13권1호
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• pp.38-44
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• 2018

In this paper, we propose Intelligent Driver Assistance System (I-DAS) for driver safety. The proposed system recognizes safety and danger status by analyzing blind spots that the driver cannot see because of a large angle of head movement from the front. Most studies use image pre-processing such as face detection for collecting information about the driver's head movement. This not only increases the computational complexity of the system, but also decreases the accuracy of the recognition because the image processing system dose not use the entire image of the driver's upper body while seated on the driver's seat and when the head moves at a large angle from the front. The proposed system uses a convolutional neural network to replace the face detection system and uses the entire image of the driver's upper body. Therefore, high accuracy can be maintained even when the driver performs head movement at a large angle from the frontal gaze position without image pre-processing. Experimental result shows that the proposed system can accurately recognize the dangerous conditions in the blind zone during operation and performs with 95% accuracy of recognition for five drivers.

• 한국정보전자통신기술학회논문지
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• 제4권1호
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• pp.23-31
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• 2011

본 논문은 차세대 자동차 지능형 통합 스마트 모니터 시스템을 제작하였다. 차량의 계기판 장치는 많은 방해 요소를 감소시키며, 운전자들에게 영향을 주지 않고 도로에 집중할 수 있도록 하는 것이 필수적이다. 위험 경보는 시각적인 디스플레이와 함께 유용하게 사용되지만 기존의 방식은 문제가 있다. 차량 안전 시스템의 최적화는 위험을 알리는 각종 경보보다 더 필수적인 것은 운전자가 도로에 집중할 수 있는 시각적인 장치가 요구된다. 지능형 통합 스마트 모니터 시스템은 자동차에서 가장 많이 보는 정보인 자동차 속도, 엔진 회전속도, 연료, 엔진 온도, 연료 게이지, 회전표시등과 각종 경보 표시등 기본 정보를 모아서 운전자에게 제공한다. 본 논문에서 설계한 지능형 통합 스마트 모니터 시스템은 박막 트랜지스터 액정 표시 장치, 액정 표시 장치배경 조명 발광다이오드, 평면 미러, 특수 제작된 렌즈 및 구동회로로 구성되어 있으며, 운전자 안전성을 고려한 차세대 지능형 자동차 통합스마트 모니터 시스템을 제작, 분석하였다.

• 산업경영시스템학회지
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• 제21권48호
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• pp.101-111
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• 1998

CNS (Car Navigation System) is the most compatible candidate among various in-vehicle information systems as a provider of ITS (Intelligence Transport Systems) information. It generally consists of remote controller, display, CD-changer, GPS receiver and so on. Among them, display is the most important and critical element of the HMI (Human-Machine Interface) suggesting the digital map to the driver. Therefore, it is certain that the display gives cognitive, physical, mental and visual workloads to the driver which are directly related with the driver's and road safety with the success of ITS. Until now, various human factors techniques have been developed and applied to estimate the driver's workload and to collect the driver's requirements of the CNS digital map, for example, mental workload assessment, visual activity analysis, cognitive analysis and so on. In addition to these kinds of techniques, this research performed the human sensibility ergonomics approach to directly investigate and evaluate the driver's requirements and sensibilities of the real products.

• 대한안전경영과학회지
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• 제11권3호
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• pp.87-94
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• 2009

Today's driver information system often features a rotary control type as a main controller for menu navigation. Population stereotype should be clearly understood in designing those systems to minimize the misunderstanding by the operator. This paper investigates stereotypes for rotary controlled menu interfaces and influences of contributing principles. A human factors experiment was conducted using various configurations of control-display layouts, cursor shapes/positions, and movement directions. The results showed that the control should be on the left of the display, with a rightward icon on the right side of the cursor, in order to match the stereotype. Regression analysis indicated that Warrick's principle was the most influential principle, followed by Icon shape, Icon position, Clockwise away, and Clockwise up principles. This study provides valuable information to designers of menu-based systems such as driver information systems and main control rooms that uses rotary controls.

• 전자공학회논문지SC
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• 제44권4호통권316호
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• pp.27-34
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• 2007

본 논문에서는 마이크로소프트사의 Windows CE 운영체제를 기반으로 한 소형의 모바일 시스템의 카메라 영상 획득을 위한 디바이스 드라이버에 관하여 살펴본다. 또한 NAND 플래시 메모리에 획득된 이미지를 저장하기 위하여 FAT 파일 시스템을 사용하였으며 NAND 메모리 특성을 반영한 FAT 파일 시스템에 대하여 다루어 본다. 영상획득을 위하여서 픽셀플러스사의 CMOS 카메라 모듈과 아지시스템에서 개발한 MBA2440 PDA 개발보드를 이용하여 하드웨어를 구현하였다. 이 카메라 모쥴은 VGA $640{\times}480$ 픽셀의 해상도를 지니고 있으며, 영상획득 속도 및 영상의 화질을 테스트하기 위한 디바이스 드라이버의 성능을 테스트 할 수 있는 응용 프로그램도 함께 제작하였다. 실험을 통하여 영상 획득을 위한 디바이스 드라이버와 FAT 파일 시스템을 이용하여 NAND 플래시 메모리에 획득한 영상을 저장하는 응용프로그램이 상호 잘 작동을 함을 확인하였다.

• 제어로봇시스템학회논문지
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• 제7권6호
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• pp.523-531
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• 2001

This paper describes and automatic mirror adjustment system that rotates a pair of side mirrors and the room mirror of a car to the optimal position for a driver by using the locating of the driver\`s pupils. A stereo vision system measures 3D coordinates of a pair pupils by analyzing the input images of stereo B/W CCD cameras mounted on the instrument panel. this system determines the position angle of each mir-ror on the basis of information about the location of the pupils and rotates each mirror to the appropriate po-sition by mirror actuators. The vision system can detect the driver\`s pupils regardless of whether it is day-time or nighttime by virtue of an infrared light source. information about the pair of nostrils in used to im- prove the correctness of pupil detection. This system can adjust side mirrors and the room mirror automati- cally and rapidly by a simple interface regardless of driver replacement of driver\`s posture. Experiment has shown this to be a new mirror adjustment system that can make up for the weak points of previous mirror adjustment systems.

• 전기학회논문지P
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• 제58권1호
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• pp.48-55
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• 2009

In order to keep safe driving conditions under road networks, there are several formations such as road structure, road surface condition, traffic occupancy and supplement of an accurate information of traffic status ahead To support safe-driving on each road formation, each formation is supplied with various information to help the driver. However, in some cases like rapid status change at local-scale geography, traffic information systems often displays insufficient information because of the lack of information correlation. In order to accurately aware the driver, all road formation must be in sync. It is important to supply accurate information to the driver because this information directly impacts the drivers on the road. This paper discusses the amber information to keep the least safety driving over road formations including tunnels and bridges. This paper also will propose the informations for safe-driving conditions, information linkage on the road and rule-base safety information, as ITS technology, being displayed for all drivers under the worst weather conditions.

• 대한인간공학회지
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• 제28권2호
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• pp.57-67
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• 2009

This study proposed a practical metaphor development process that consisted of three steps: 1) identifying major functions, 2) developing metaphor candidates, and 3) evaluating appropriateness of the candidates. In the first step, a total of 27 functions might be implemented in a driver information system (DIS) in the near future. Then, three metaphor candidates were selected from existing metaphors, which were reported to be more practical than others by previous studies. Finally, the candidates were evaluated on their appropriateness for driver information systems by using a quick and simple survey. As a result, two metaphors (a PC and a secretary) were identified as the most appropriate ones. The two metaphors can be used to design a variety of interfaces and interactions for driver information systems. In addition, the development process proposed in this study could be applied to developing metaphors for emerging devices with a variety of functions (e.g. PMPs, MP3s, and electronic dictionaries) as well as driver information systems.

• 디지털산업정보학회논문지
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• 제5권2호
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• pp.167-176
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• 2009

In this paper, a system that detects driver's drowsiness has been implemented based on the automatic extraction and the tracking of pupils. The research also focuses on the compensation of illumination and reduction of background noises that naturally exist in the driving condition. The system, that is based on the principle of Haar-like feature, automatically collects data from areas of driver's face and eyes among the complex background. Then, it makes decision of driver's drowsiness by using recognition of characteristics of pupils area, detection of pupils, and their movements. The implemented system has been evaluated and verified the practical uses for the prevention of driver's drowsiness.

• 정보과학회 컴퓨팅의 실제 논문지
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• 제20권12호
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• pp.632-639
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• 2014

본 논문은 윈도우 환경의 PC에 관리되고 있는 개인적인 주요 파일들이 네트웍을 통해 불법적으로 유출되는 것을 감시하기 위한 PC 자체적인 파일 유출 감시 프로세스 구현에 관한 것이다. 네트웍을 통해 파일을 유출하기 위해서는 우선 해당 파일을 디스크에서 읽어야만(Access) 한다는 점에 착안 하여 윈도우 파일시스템 드라이버에서의 파일 읽기 모든 동작에서 이루어지는 파일 정보(파일명, 내용 일부)와 윈도우 NDIS(Network Driver Interface Specification) 드라이버 미니포트의 전송 패킷을 캡쳐하여 비교함으로서 사용자에게 의도치 않은 파일 전송을 인지토록 하며 또한, 사용자의 응답이 없을 경우 PC 네트웍의 자동 차단 프로세스를 제안한 것이다. 파일 읽기 동작에서의 파일 정보와 전송 패킷 수집 기능에 대해 시험 구현하여 제안 프로세스가 타당성이 있음을 보여 주었으며, 또한 PC 성능 면에서 크게 영향을 미치지 않는 실용성이 있음을 검증하였다.