Journal of the Korea Institute of Information and Communication Engineering (한국정보통신학회논문지)

The Korea Institute of Information and Commucation Engineering (한국정보통신학회)
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Implementation of Road Risk Information Notice Device

도로위험정보알림 디바이스 구현

  • Kim, Jong-Duk (Department of Bio Medical Engineering, Ajou University) ;
  • Han, Seung-Heon (Department of Bio Medical Engineering, Ajou University) ;
  • Kim, Yong-Kil (Department of Electronic Engineering, Ajou University)
  • Received : 2019.02.15
  • Accepted : 2019.03.13
  • Published : 2019.04.30
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Abstract

With the increasing supply of vehicles, construction of new roads and expansion of existing roads are growing and this is leading to a proportional rise in diverse hazards on a road. These hazards are classified into fixed hazards and variable hazards. Currently, drivers receive information of fixed hazards, such as overspeed, frequent accidents, and rock fall through navigations. However, variable hazards are more hazardous than fixed hazards. Map companies frequently enter information of variable hazards manually, but it is less real-time and hard to deal with unforseen hazards. This paper is intended to implement a road hazard warning system for making a contribution to pubic interests by improving this problem and delivering real-time information of hazards to drivers, and suggest a direction for using information of hazards on a road.

차량의 보급 증가와 함께 신규 도로 건설 및 기존 도로의 확장이 늘어나고 있으며, 이와 함께 도로 위 다양한 위험들은 비례적으로 증가하고 있다. 이러한 위험들은 크게 고정위험과 가변위험들로 나타나고 있으며, 현재는 내비게이션을 통해 과속, 사고다발, 낙석주의 등에 대한 고정위험이 운전자에게 안내되고 있다. 그러나 도로위험정보는 고정위험정보보다 가변위험정보가 그 위험성이 높다 할 수 있는데, 가변위험 정보의 경우 맵 회사들이 수기로 정보를 입력하고 있는데, 이는 실시간성이 떨어지며, 돌발 위험에 대한 대응이 되지 않는다. 이에 본 논문에서는 이러한 문제점을 해결하고 실시간 위험정보를 운전자에게 안내하여 공공이익에 기여할 수 있는 도로위험정보알림 장치에 대해 제안하고 구현하여 도로 위 위험정보의 활용에 대한 방향성을 제시한다.

Keywords

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Fig. 1 NTRIP Service Flow

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Fig. 2 LoRaWan Topology

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Fig. 3 Data Communication of LoRa Classes

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Fig. 4 SKT LoRa Location Service Flow

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Fig. 5 Road Risk Information Notice Service Scenario

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Fig. 6 Organization of Road Risk Information Notice Device

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Fig. 7 PCB Design of Road Risk Information Notice Device

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Fig. 8 Task Flow Road Risk Information Notice Device

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Fig. 9 Design of User GUI

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Fig. 10 Hardware Platform

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Fig. 11 Radiation Pattern of LoRa Antenna

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Fig. 12 Installation of Road Risk Information Notice Device

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Fig. 13 Present Road Risk Information on T-Map

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Fig. 14 Device Location Status on Server

Table. 1 Re-defined Packet of RTCM

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Table. 2 LoRa Antenna Gain

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References

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  3. J. H. Shin, J. Y. Lim, D. H. Kim, and J. D. Kim, "Link Performance Analysis of LoRa for Real-time Information Gathering in Maritime Conditions," Journal of KIISE, vol. 45, no. 3, pp. 303-310, Mar. 2018. https://doi.org/10.5626/JOK.2018.45.3.303
  4. J. M. Kwak, and S. R. Lee, "Buoy-launched Terminal Equipment and Ship-launched Gateway Equipment Based on LoRa for Identification of Fishing Gear," Journal of the Korea Institute of Information and Communication Engineering, vol. 22, no. 5, pp. 779-786, May. 2018. https://doi.org/10.6109/JKIICE.22018.22.4.779
  5. J. J. Shin, S. B. Eun, S. S So, and B. H. Kim, "Design and Implementation of LoRa-based Emergency Exit Guide System," Journal of the Korea Institute of Information and Communication Engineering, vol. 22, no. 4, pp. 569-574, Apr. 2018. https://doi.org/10.6109/JKIICE.2018.22.4.569
  6. LoRa Alliance Technical Marketing Workgroup 1.0, "A technical overview of LoRa(R) and LoRaWAN," 2400 Camino Ramon, #375, San Ramon, CA 94583, 2016.
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