• 제목/요약/키워드: ITS communication system

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협력주행 서비스를 위한 차량통신시스템 성능 분석 (Performance of Inter Vehicle Communication System for Cooperative Driving Service)

  • 송유승;오현서
    • 대한임베디드공학회논문지
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    • 제9권5호
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    • pp.293-297
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    • 2014
  • ITS services are quickly evolving due to the convergence of ICT technologies. WAVE technology based on IEEE802.11p specification has been introduced for the high speed vehicle communication and applied into the transportation system for driving safety and convenience. Recently, WAVE technology as a inter vehicle communication is used for cooperative driving application. In this paper, the implemented inter vehicle communication system is introduced and suggested as a solution for V2X communication. The performance of the implemented inter vehicle communication system is tested and analyzed under various conditions.

Mobile IP 서비스 제공을 위한 DSRC프로토콜 구조 (DSRC Protocol Architecture of provide Mobile If Service)

  • 최광주
    • 대한전자공학회:학술대회논문집
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    • 대한전자공학회 2002년도 하계종합학술대회 논문집(1)
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    • pp.387-390
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    • 2002
  • 본 논문에서는 ITS(Intelligent Transport System) 서비스를 위한 기반시설로 대전광역시에서 도입한 DSRC(Dedicated Short Range Communication) 시스템에 대하여 DSRC 시스템의 개요, DSRC프로토콜 및 DSRC시스템을 이용한 Mobile IP서비스 제공 방법에 대하여 제안하였다.

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Design models of PTIS in a telecommunication point of view, and implementation case at Seoul city (PTIS : Public Transportation Information System)

  • 허완철;채수운
    • 한국ITS학회:학술대회논문집
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    • 한국ITS학회 2005년도 제4회 추계학술대회 및 정기총회
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    • pp.83-88
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    • 2005
  • A transportation problem in Korea is a serious issue that has to be solved urgently in the motor era of 15 million vehicles. Recently ITS has been introduced to improve efficiency of the current roads because an excessive budget and a long term construction are needed to build new roads. Therefore the government enacted the law as of ITS and the in architecture. However, these ITS information services were oriented to mainly vehicles and drivers, not public entities such as bus driver, passengers and so on. Nowadays lots of local autonomous city introduced a public transportation information system (PTIS), and providing useful information for the public. For this PTIS, important design issues are to be focused on detecting and tracking technology of moving bus, and a wireless communication link to transmit the location information. This paper presents design models using several wireless communication methods, and an implementation case using a Wireless packet Data communication Network (WDN) to transmit bus location information at Seoul, Korea.

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A Service Restoration Algorithm for Power Distribution Networks Applying the Multi-Agent System

  • Jung Kwang-Ho;Cho Myeon-Song;Lee Seung-Jae;Lim Seong-Ll
    • KIEE International Transactions on Power Engineering
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    • 제5A권2호
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    • pp.125-131
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    • 2005
  • Service restoration is one of the most important missions in distribution system operation. This paper proposes a multi-agent system approach to distribution system restoration. Every relay is developed as an agent by adding its own intelligent, self-tuning and communication ability. The relay agent independently calculates and corrects its restoration index through communication with neighboring agents and its own intelligence. The proposed algorithm is applied to a simple network to demonstrate its soundness and effectiveness.

지능형 차량 교통체계에서 보안 통신 리뷰 (Review on Security Communication Environment in Intelligent Vehicle Transport System)

  • 홍진근
    • 융합정보논문지
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    • 제7권6호
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    • pp.97-102
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    • 2017
  • 본 논문에서는 연구목적과 관련하여, 협업 지능형교통체계와 자율주행체계에 관심을 가지고 있으며, C-ITS 특성 가운데 핵심 전달 메시지인 CAM과 DENM 특성 분석, 또한 V2X 통신의 보안 특성과 함께 CAM 및 DENM 메시지의 보안 인증서 및 헤더 구조를 중심으로 분석에 초점을 맞추고 있다. 연구방법에 대해, 우리는 CAM 메시지인 차량의 위치와 상태를 알리는 메시지를 분석하고, DENM 메시지인 차량 사고와 같은 이벤트를 알리는 메시지를 분석하고, 이를 지원하는 보안통신 특성을 분석한다. 차량통신에 사용하는 보안헤더와 인증서 형식과 함께, 차량용 서명된 인증서 검증 절차, 그리고 차량용PKI 특성을 얻었다. 아울러, V2X 보안통신을 위해 필요로 하는 보안 동기패턴에 대한 특성과 전송능력에 대해서도 함께 유도할 수 있었다. 그러므로 본 논문은 C-ITS 환경에서 DENM 및 CAM을 전송하는 통신 서비스를 위한 보안 특성을 고려할 때 의미 있는 결과라 할 수 있다.