• 한국자동차공학회논문집
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• 제15권1호
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• pp.71-77
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• 2007

Dangerous driving is a major cause of traffic accidents in Korea. It becomes more serious for commercial vehicles due to higher fatality rates. The Safe Driving Management System (SDMS), developed in this research, is a comprehensive solution that monitors and stores driving conditions of vehicles, detects dangerous driving situations, and analyzes the results in real time. The Safe Driving Management System consists of a vehicle movement information controller, a dangerous driving detection algorithm and a vehicle movement data report and analysis program. The dangerous driving detection algorithm detects and classifies dangerous driving conditions into representative cases such as sudden acceleration, sudden braking, sudden lane change, and sudden turning. Both computer simulation and vehicle test have been conducted to develop and verify the algorithm. The Safe Driving Management System has been implemented on commercial buses to verify its reliability and objectivity. It is expected that the system can contribute to prevention of traffic accidents, systemization of safe driving management and reduction of commercial vehicle operation costs.

• 인터넷정보학회논문지
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• 제23권3호
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• pp.47-56
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• 2022

본 논문의 안전운행 보상시스템은 안전운전을 수행한 차량운전자에게 직접적인 보상을 제공하여 안전운전의 동기를 부여하고 적극적 참여를 유도함으로써 사고의 발생을 줄여 생명과 재산의 손실을 줄이는데 목표가 있다. 기존의 디지털 운행기록계의 경우 차량의 운전상태를 기록만 하였으나, 안전운전보상시스템은 사고예방 효과를 높이기 위한 지원책으로서 안전운전을 수행한 경우 금전적 보상을 통해 위험운전을 피하고 안전운전을 하도록 유도하였다. 즉, 과속으로 인한 사고 발생 빈도가 높은 지역에서는 속도 준수, 또는 차 간 거리 유지, 지정차로 운행 등의 안전운행 지시를 수행한 경우 직접적인 보상을 제공함으로써 안전운전 동기를 부여하여 교통사고를 예방하고자 한다. 이러한 안전운행 데이터와 보상내용은 투명하고 안전하게 관리되어야 하므로 보상근거와 보상내용을 폐쇄형 블록체인 하이퍼레저 패브릭을 이용하여 구축하였다. 그러나 블록체인 시스템은 투명성과 안전성이 보장되는 반면에 낮은 데이터 처리속도가 문제가 되므로 이를 개선하고자 블록생성 가속 기능을 구현하였다. 본 연구에서는 순차적으로 블록을 생성하는 속도가 10TPS(Transaction per second) 내외의 낮은 속도를 나타내어, 블록의 생성속도를 높이기 위해 가속 기능을 적용한 결과 1,000TPS 이상의 고성능 네트워크를 구현하였다.

• 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.

• ETRI Journal
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• 제37권3호
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• pp.626-636
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• 2015

This paper proposes an adaptive multimodal in-vehicle information system for safe driving. The proposed system filters input information based on both the priority assigned to the information and the given driving situation, to effectively manage input information and intelligently provide information to the driver. It then interacts with the driver using an adaptive multimodal interface by considering both the driving workload and the driver's cognitive reaction to the information it provides. It is shown experimentally that the proposed system can promote driver safety and enhance a driver's understanding of the information it provides by filtering the input information. In addition, the system can reduce a driver's workload by selecting an appropriate modality and corresponding level with which to communicate. An analysis of subjective questionnaires regarding the proposed system reveals that more than 85% of the respondents are satisfied with it. The proposed system is expected to provide prioritized information through an easily understood modality.

• Journal of Positioning, Navigation, and Timing
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• 제11권4호
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• pp.389-395
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• 2022

In order to ensure reliability the high-level automated driving such as Advanced Driver Assistance System (ADAS) and universal robot taxi provided by autonomous driving systems, the operation with high integrity must be generated within the defined Operation Design Domain (ODD). For this, the position and posture accuracy requirements of autonomous driving systems based on the safety driving requirements for autonomous vehicles and domestic road geometry standard are necessarily demanded. This paper presents localization requirements for safe road driving of autonomous ground vehicles based on the requirements of the positioning system installed on autonomous vehicle systems, the domestic road geometry standard and the dimensions of the vehicle to be designed. Based on this, 4 Protection Levels (PLs) such as longitudinal, lateral, vertical PLs, and attitude PL are calculated. The calculated results reveal that the PLs are more strict to urban roads than highways. The defined requirements can be used as a basis for guaranteeing the minimum reliability of the designed autonomous driving system on roads.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2008년도 추계학술대회 논문집
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• pp.536-543
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• 2008

When the electric motor car was first introduced, an engineer, responsible for the work related to operation and a conductor for the announcement and management of entrances and the other services like as monitoring the passengers in the platforms used to take together the train for passengers' safe. As new technologies developed and the urban transit system had the automatic driving facilities, automatic door switch and broadcasting systems, to solve the financial problems, most subway systems introduced the one-man operation system. To curtail the operating expense through automatic control and operation for the economical efficiency, the crewless driving system was introduced abroad around 1970 on the light weight train and Japan started the crewless driving system in 2005, Germany started it in June 2008. We examine system requirements of the system and methods to construct safe systems that would be introduced, suitable for one-man operation system or crewless driving system through the surveys and analysis of driving state and the systems.

• 전자공학회논문지
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• 제50권8호
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• pp.171-179
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• 2013

내비게이션은 차량 운전자에게 경로탐색과 길안내 서비스의 제공을 기본으로 한다. 그러나 현재의 경로탐색에서는 운전자의 안전을 지키기 위해 다양한 도로 상황을 고려하지 않고, 안전운전 DB만을 이용하여 최단경로를 찾는 서비스만을 제공하고 있다. 따라서 안전운전을 위해서는 단순한 최단경로 검색 서비스를 벗어나, 위험지역이나 위험시간대를 고려한 경로탐색이 필요하다. 본 논문에서는 A* 알고리즘을 이용하여 안전운전을 위해 위험지역을 회피할 수 있는 경로탐색 방법을 제안한다. 이 경로탐색에서 탐색노드의 경로 적합 도를 측정할 때 위험지역 종류별로 서로 다른 휴리스틱 가중치를 적용하였다. 특히 경로 탐색에서 회피할 위험지역으로는 사고가 자주 발생하는 사고 다발구간, 어린이 보호구역, 교차로지역, 그리고 위험시간대를 고려하여 동적으로 위험지역별 가중치를 부여하였다. 컴퓨터 시뮬레이션 결과, 안전운전을 위해 위험지역을 회피할 수 있는 경로탐색 서비스를 제공할 수 있는 가능성을 확인하였다.

• 한국ITS학회 논문지
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• 제9권1호
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• pp.55-68
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• 2010

IEEE WAVE는 고속 이동 중인 차량 네트워크에서 운전자 안전 정보 및 상업적 서비스를 제공하기 위한 무선 전송 기술로써 현재 표준화가 활발히 진행 중이다. 본 논문에서는 IEEE WAVE를 기반으로 하는 안전운전 지원 서비스를 위한 응용계층 프로토콜과 이를 기반으로 하는 응용 시스템을 소개한다. 본 논문에서 다루는 안전운전 지원 서비스로는 공사구간 정보 서비스 및 사고차량 신고 서비스, 응급차량 알림 서비스, 프로브 서비스, 딜레마구간 의사결정 지원 서비스를 포함한다. 시스템의 기능 검증을 위하여 에뮬레이터 시스템을 구현하였으며 에뮬레이터는 차량과 도로의 모든 상황을 관리하는 에뮬레이터 서버와 각각의 기능 개체(차량 및 노변, 교통 센터)를 포함하는 클라이언트로 구성된다.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2009년도 춘계학술대회 논문집
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• pp.628-635
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• 2009

To assure the safety of urban railway train, it is necessary to observe the specified driving principles under an essential condition during running on tracks. These principles arises from a great deal of experience for a long time and include safe distance between trains, the railway signaling, block system, regular block of the highest priority and driving prohibition of simple railway vehicle in the main track, etc. Therefore, it is important to apply these principles to domestic urban railway driving regulations and railway vehicle driving regulations. However, domestic urban railway administrator established his own operation rules within the regulation. In this study, domestic urban railway administration's own rules are examined and the appropriate driving regulation on the safe driving principles is proposed.

• 한국자동차공학회논문집
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• 제22권3호
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• pp.234-240
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• 2014

Driving-related injuries associated with elderly drivers are on the rise, although the overall rate of driving-related injuries has decreased. To determine the causes of this trend, we researched existing vehicle systems that use different sensors and signals to promote safe driving. We found that although the systems alert drivers to potential collisions and assist them in finding a location easily, they were created by people who rarely use the systems in their daily lives. For the most part, they're not created by people with driving difficulties caused by health problems, which in turn often afflict the elderly. To address this issue, we analyzed the drawbacks of the current systems and used a focus group of people with body conditions that have declined due to age to discover the problems they encounter while driving. With the focus group, we used diverse research activities, such as observation and interview to demonstrate how new system concepts could be developed for the elderly. Finally, we propose that adequate system concepts for the elderly would improve driving safety and provide a more enjoyable driving environment for this population.