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Computers 2019, 8(1), 16; https://doi.org/10.3390/computers8010016

Inter-Vehicle Communication Protocol Design for a Yielding Decision at an Unsignalized Intersection and Evaluation of the Protocol Using Radio Control Cars Equipped with Raspberry Pi

Information Systems Science Major, Graduate School of Engineering, Soka University, 1-236 Tangi-cho, Hachioji-shi 192-8577, Japan
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Received: 22 December 2018 / Revised: 11 February 2019 / Accepted: 14 February 2019 / Published: 18 February 2019
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Abstract

The Japanese government aims to introduce self-driven vehicles by 2020 to reduce the number of accidents and traffic jams. Various methods have been proposed for traffic control at accident-prone intersections to achieve safe and efficient self-driving. Most of them require roadside units to identify and control vehicles. However, it is difficult to install roadside units at all intersections. This paper proposes an inter-vehicle communication protocol that enables vehicles to transmit their vehicle information and moving direction information to nearby vehicles. Vehicles identify nearby vehicles using images captured by vehicle-mounted cameras. These arrangements make it possible for vehicles to exchange yielding intention at an unsignalized intersection without using a roadside unit. To evaluate the operations of the proposed protocol, we implemented the protocol in Raspberry Pi computers, which were connected to cameras and mounted on radio control cars and conducted experiments. The experiments simulated an unsignalized intersection where both self-driven and human-driven vehicles were present. The vehicle that had sent a yielding request identified the yielding vehicle by recognizing the colour of each radio control car, which was part of the vehicle information, from the image captured by its camera. We measured a series of time needed to complete the yielding sequence and evaluated the validity of yielding decisions. View Full-Text
Keywords: self-driven vehicle; human-driven vehicle; inter-vehicle communication protocol; yielding decision; unsignalized intersection; radio control car; Raspberry Pi self-driven vehicle; human-driven vehicle; inter-vehicle communication protocol; yielding decision; unsignalized intersection; radio control car; Raspberry Pi
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Yajima, H.; Takami, K. Inter-Vehicle Communication Protocol Design for a Yielding Decision at an Unsignalized Intersection and Evaluation of the Protocol Using Radio Control Cars Equipped with Raspberry Pi. Computers 2019, 8, 16.

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