• Journal of Positioning, Navigation, and Timing
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• 제2권1호
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• pp.91-100
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• 2013

This paper introduces an indoor sensor fusion wireless communication device which provides the Location Based Service (LBS) using fire prevention facility. The proposed system can provide information in real time by optimizing the hardware of Wi-Fi technology. The proposed system can be applied to a fire prevention facility (i.e., emergency exit) and provide information such as escape way, emergency exit location, and accident alarm to smart phone users, dedicated terminal holders, or other related organizations including guardians, which makes them respond instantly with lifesaving, emergency mobilization, etc. Also, the proposed system can be used as a composite fire detection sensor node with additional fire and motion detect sensors.

• 제어로봇시스템학회논문지
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• 제18권5호
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• pp.453-464
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• 2012

This is a research of an adaptive longitudinal control system for situated cognition in wide range, traffic accidents reduction and safety driving environment by integrated system which graft a road infrastructure's information based on IT onto the intelligent vehicle combined automobile and IT technology. The road infrastructure installed by laser scanner in intersection, speed limited area and sharp curve area where is many risk of traffic accident. The road infra conducts objects recognition, segmentation, and tracking for determining dangerous situation and communicates real-time information by Ethernet with vehicle. Also, the data which transmitted from infrastructure supports safety driving by integrated with laser scanner's data on vehicle bumper.

• 한국ITS학회 논문지
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• 제23권4호
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• pp.54-66
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• 2024

최근 자율주행 차량을 지원하기 위한 다양한 신규 ITS 서비스들이 등장하고 있다. 인프라 가이던스 서비스도 자율차의 주행능력을 향상시킴으로서 비자율차 운전자와 조화를 이루는 교통흐름을 유도하기 위해 등장한 신규 ITS 서비스중 하나이다. 이와 같은 신규 ITS서비스를 도입하기 위한 검증절차로서 연구자는 시뮬레이션 및 테스트베드 검증 등을 수행하게 된다. 그러나 도로에서 발생할 수 있는 다양한 공간적, 상황적 범위를 모두 고려한 테스트 시나리오 수립에는 현실적 어려움이 발생한다. 본 연구에서는 자율주행 신기술로서 연구를 수행중인 인프라 가이던스 서비스를 중심으로 신규 ITS 서비스 검증을 위한 테스트 시나리오 설계방법에 대하여 제시하고자 한다.

• 전자공학회논문지
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• 제50권1호
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• pp.205-214
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• 2013

본 논문에서는 전기자동차 충전인프라를 효율적으로 보급하는데 도움이 되도록 가상 충전인프라 시뮬레이터를 구현하여 다양한 전기자동차 충전인프라 정보들(충전현황, 충전패턴, 충전부하량, 충전요금 등)를 생성하고 그 결과를 분석하였다. 제안하는 시뮬레이터는 교통량정보제공시스템과 국토해양부 등의 통계자료를 바탕으로 전기자동차의 운행특성을 모의하였으며, 그에 따른 충전부하량 및 충전패턴을 분석할 수 있도록 구현되었다. 또한, 한국전력공사(KEPCO)에서 고시한 전기자동차 충전요금(안)을 적용하여 충전유형별, 차량용도별 및 시간대별 충전요금정산 결과를 분석해 볼 수 있었다. 본 논문에서는 제안하는 전기자동차 충전인프라 시뮬레이터를 통하여 전기자동차 충전인프라를 구성할 때 고려해야하는 요소들을 현실적인 상황과 유사하게 모의하여 분석할 수 있었다.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2011년도 정기총회 및 추계학술대회 논문집
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• pp.2147-2152
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• 2011

This study of bimodal integration management system in conjunction with the tram and the tram cars bimodal integrated management system that occupies a part of the system to perform its role as a bimodal tram vehicle configuration, a device for the vehicle's infrastructure ryureul development and it is aimed to build on the vehicle. Bimodal tram vehicle infrastructure systems, internal and external information of the larger vehicles, and vehicles used to collect information for its own part and the integrated operations management center, or providing partial information from the station and collect/provide for the transfer of information to the communication part consists In this study, the core of these devices, the configuration of the vehicle infrastructure systems for the overall management and control of vehicles operating a computer's central processing device, vehicle infrastructure systems that make it manages and stores all jangchiryu Integrated Operations Management Center is reporting. In addition, seamless integration with operational management center for interactive communication in a vehicle mounted communications devices to maintain the best condition to manage. Current general traffic management system in a similar terminal device being used, but bimodal tram vehicles operating the computer of the vehicle operates the infrastructure to configure the devices around the one to configure the system in terms of step enhanced the active type, the operating terminal unit of inter active type. In this study, considering the future alignment of the accounting fee system, the expansion of the system reliability and stability around the activities that are underway.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2011년도 제42회 하계학술대회
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• pp.23-24
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• 2011

Recently, it is required EV(Electric Vehicles) charging infra construction for approaching to accelerate and to commercialize development of EV. In this study, it was introduced basic overview of EV and charging infra construction. and we're supposed rate of growth and reduction of the number of registered vehicles by considering about last 3 years and supposed automatic number. This paper was produced dissemination if demand of EV would constantly increase. We compared and analyzed the relationship of 5th power supply and power consumption.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2000년도 추계학술대회논문집
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• pp.219-225
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• 2000

The major movement block of the containers have range between apron and designation points on yard in container terminal. The yard tractor operated by human takes charge of its movement in conventional container terminal. In automated container terminal, AGV(Automated Guided Vehicle) has charge of the yard tractor's role and the navigation path is ordered from upper level control system. The automated container terminal facilities must have the docking system to guide landing line to have high speed travelling and precision positioning. The general method for docking system uses the vision system with CCD camera, infra red, and laser. This paper describes the detection of AGV's position and orientation using laser slit beam to develop docking system.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2003년도 추계학술대회논문집
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• pp.533-536
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• 2003

The Low frequency(1-200 Hz) noise levels radiated by road traffic were investigated. The results showed that the peak pass-by noise of truck with speed of 60km/h was about 75㏈. For the infra-sound frequency range, the noise was about 65㏈ and it was less value than expected. But the noise level will be increase as increasing the speed. The pass-by noise for train was also measured for comparison. The peak train noise was about 95㏈ and it will be enough noise level for a human body to give nuisance.

• 방송과미디어
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• 제24권1호
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• pp.23-32
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• 2019

KT는 5G의 핵심서비스로서 자율주행차를 선정하고, 5G를 통한 자율주행 기술 개발에 중점을 두고 있다. 5G 자율주행 핵심 기술 3가지로 5G Infra, 차량사물통신(V2X, Vehicle-to-Everything), 정밀측위(RTK, Real Time Kinematic)를 정의하고 개발해왔다. 5G Infra를 통해 차량 서비스 별로 특화된 전용 슬라이스를 제공하고, 차량 이동 중에도 네트워크와의 연결이 끊기지 않도록 연속적인 5G 커버리지를 제공한다. V2X를 통해 자율주행차 센서 성능을 보완하고 정밀측위를 이용한 정확한 차량제어를 통해 자율주행 성능을 개선하여, 국내 최초로 대형버스의 자율주행을 가능하게 하였다. 5G 자율주행기술은 KT의 자율주행차에 탑재되어 있으며, 이를 바탕으로 5G 자율주행버스, 5G기반 자율주행차 원격제어 등의 다양한 서비스를 선보였다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제13권3호
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• pp.1674-1688
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• 2019

As environmental pollution and fossil fuel energy problems from fuel vehicle have occurred, the interest of electric vehicle(EV) has increased. EV industry and energy industry have grown dynamically in these days. It is expected that the next generation of primary transportation will be EV, and it is necessary to prepare EV infra and efficient energy management such as EV communication protocol, EV charge station, and smart grid. Those EV and energy industry fields are now on growth. Also, the study and development of them are now in progress. In this paper, distributed charge signal processing software for smart slow and quick EV charge is proposed and designed for dealing with EV charge demand. The software consists of smart slow and quick EV charge schedule engine and EV charge power distribution core. The software is designed to support two charge station types. One is normal EV charge station and the other is bus garage EV charge station. Both two types collect the data from EV charge stations, and then analyze the collected data. The software suggests optimized EV charge schedule and deliveries EV charge power distribution information to power switchboard system, and the designed software is implemented on embedded system. It is expected that the software provides efficient EV charge schedule.