Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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Design and Implementation of Vehicle Control Network Using WiFi Network System

WiFi 네트워크 시스템을 활용한 차량 관제용 네트워크의 설계 및 구현

  • Yu, Hwan-Shin (Department of Automotive Mechanical Engineering, Howon University)
  • 유환신 (호원대학교 자동차기계공학과)
  • Received : 2018.12.03
  • Accepted : 2019.03.08
  • Published : 2019.03.31
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Abstract

Recent researches on autonomous driving of vehicles are becoming very active, and it is a trend to assist safe driving and improve driver's convenience. Autonomous vehicles are required to combine artificial intelligence, image recognition capability, and Internet communication between objects. Because mobile telecommunication networks have limitations in their processing, they can be easily implemented and scale using an easily expandable Wi-Fi network. We propose a wireless design method to construct such a vehicle control network. We propose the arrangement of AP and the software configuration method to minimize loss of data transmission / reception of mobile terminal. Through the design of the proposed network system, the communication performance of the moving vehicle can be dramatically increased. We also verify the packet structure of GPS, video, voice, and data communication that can be used for the vehicle through experiments on the movement of various terminal devices. This wireless design technology can be extended to various general purpose wireless networks such as 2.4GHz, 5GHz and 10GHz Wi-Fi. It is also possible to link wireless intelligent road network with autonomous driving.

차량의 자율주행을 위한 최근의 연구는 매우 활성화되고 있고, 안전운행을 보조하고 운전자의 편의성을 향상시키기는 추세이다. 자율주행 차량은 인공지능의 결합, 영상인식 능력과 더불어 사물간의 인터넷 통신이 필수인 상황이다. 모바일 이통통신 네트워크는 처리하는데 한계가 있기 때문에, 쉽게 구현이 가능하고 확장이 용이한 Wi-Fi 네트워크를 활용하여 확장한다. 이러한 차량 관제용 네트워크를 구축하기 위한 무선 설계방식을 제안한다. 이동 단말장치의 데이터 송수신의 손실을 최소화하기 위한 AP의 배치 구성과 소프트웨어 구성방식을 제안한다. 제안한 네트워크 시스템의 설계를 통해서 이동 차량의 통신성능을 비약적으로 높일 수 있다. 또한 다양한 단말장치의 이동에 대한 실험을 통해, 차량용으로 사용할 수 있는 GPS, 영상, 음성 및 데이터 통신의 패킷 구성을 검증한다. 이러한 무선 설계기술을 2.4GHz, 5GHz 및 10GHz Wi-Fi 등의 다양한 범용 무선 네트워크에 확장적용이 가능하다. 또한 무선 지능형 도로망과 자율주행과의 연동이 가능하다.

Keywords

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Fig. 1. Hardware configuration method of communication terminal device

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Fig. 2. Connection S/W method based on Linux OS

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Fig. 3. AP location method

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Fig. 4. Wireless area overlap design

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Fig. 5. Example of installation of outdoor wireless AP

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Fig. 6. Packet loss when driving at 30Km/h

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Fig. 7. Packet bandwidth in Wireless

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Fig. 8. Packet loss when driving at 30Km/h, 60Km/h and 90Km/h

Table 1. Specification of testing Reference Design Kit

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Table. 2. Data processing method

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Table. 3. Data processing result

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References

  1. Hwan-Shin Yu, "The lane departure warning algorithm optimized for automotive black-boxes and compact system", Journal of KIIT, Volume 13 Issue 10, pp. 9-15, Oct. 2015.
  2. Hwan-Shin Yu and Eui-Bung Joeung, "The optimized file system designed for vehicle black box system", Journal of KIIT, Volume 14 Issue 2, pp. 1-6, Feb. 2016.
  3. Hwan-Shin Yu, "File syste recovery and search enhancement algorithm of automotive Black-boxes", Journal of KIIT, Volume 14 Issue 10, pp. 133-140, Oct. 2016.
  4. Hwan-Shin Yu, "System design and implementation with improved FCWS detection speed", Journal of KIIT, Volume 16 Issue 1, pp. 53-60, Oct. 2018.
  5. Hwan-Shin Yu, "Design and Implementation of Anti-collision Algorithm Using Bluetooth 4.0 Technology", Journal of KIIT, Volume 15 Issue 5, pp. 31-36, Oct. 2017.
  6. Hwan-Shin Yuand Eui-Bung Joeung, "The lane recognition enhancement algorithms of around view monitoring system based on automotive black boxes", Journal of KIIT, Volume 15 Issue 1, pp. 45-53, Jan. 2017.
  7. Hwan-Shin Yu, "Design of Vehicle security authentication system Using Bluetooth 4.0 Technology", Journal of KIIT, Volume 18 Issue 7, pp. 325-330, Oct. 2017.
  8. Leiming Mao, SamTaek Kim and Dongwoo Lee, "The auxiliary system of traffic regulation based on blackbox(vehicle DVR)", Journal of KIIT, Summer Conference, pp. 1-3, 2015.
  9. Junho Kim and Sungwon Lee, "The development of automatic boarding and alighting bus system", Journal of KICS, Summer Conference, pp. 1390-1391, 2015.
  10. Jong-Wuk Son, Kookrae Cho and Bokyu Jang, "Bacon-Management Scheme using the moving route", Journal of KSC, Winter Conference, pp. 379-380, 2015.