A vehicle to pedestrian (V2P) collision prevention system and a method therefor are disclosed. In a V2P communication system for transmitting and receiving vehicle global navigation satellite system (GNSS) location information and pedestrian GNSS location information via wireless access in vehicular environments (WAVE) standard wireless communication, a V2P collision prevention system comprises: an on-board unit (OBU) in which a V2P collision prevention service is executed by calculating a relative distance between the vehicle and the pedestrian and which is mounted in the vehicle, road side equipment (RSE) which is capable of WAVE standard wireless communication with the OBU, and a user terminal which is capable of transmitting the pedestrian GNSS location information via WAN/Internet; and a server which calculates the possibility of collision between the vehicle and the pedestrian using the vehicle GNSS location information and the pedestrian GNSS location information via the RSE and WAN/Internet, and which transmits a danger signal to the driver of the vehicle and to the user terminal of the pedestrian. According to the present invention, the OBU provides a V2P collision prevention service via WAVE by calculating the relative distance between the vehicle and the pedestrian even when the accuracy of locations measured using the vehicle GNSS and measured using the pedestrian GNSS is low, and the latency executed using an ACK packet between the vehicle and the server, and between the pedestrian and the server is low.
L'invention concerne un système de prévention de collision entre un véhicule et un piéton (V2P) et un procédé associé. Dans un système de communication V2P pour la transmission et la réception d'informations de position de système satellite de navigation mondial (GNSS) de véhicule et d'informations de position GNSS de piéton par accès sans fil en communication sans fil normale d'environnements véhiculaires (WAVE), un système de prévention de collision V2P comprend : une unité embarquée (OBU) dans laquelle un service de prévention de collision V2P est exécuté en calculant une distance relative entre le véhicule et le piéton et qui est montée dans le véhicule, un équipement sur le côté de la route (RSE) qui est capable de communication sans fil normale WAVE avec l'OBU, et un terminal d'utilisateur qui peut transmettre les informations de position GNSS du piéton par WAN/internet ; et un serveur qui calcule la possibilité de collision entre le véhicule et le piéton au moyen des informations de position GNSS du véhicule et des informations de position GNSS du piéton par le RSE et le WAN/l'internet, et qui émet un signal de danger au conducteur de véhicule et au terminal d'utilisateur du piéton. Selon la présente invention, l'OBU assure un service de prévention de collision V2P par WAVE en calculant la distance relative entre le véhicule et le piéton même lorsque la précision de positions mesurées au moyen du GNSS du véhicule et mesurées au moyen du GNSS du piéton est faible, et que la latence exécutée au moyen d'un paquet ACK entre le véhicule et le serveur, et entre le piéton et le serveur est faible.
V2P 충돌예방 시스템 및 그 방법을 개시한다. V2P 충돌예방 시스템은, 차량의 GNSS 위치정보와 보행자의 GNSS 위치정보를 WAVE 무선통신을 통해 송수신하는 V2P 통신 시스템에 있어서, 상기 차량과 상기 보행자간의 상대거리를 계산하여 V2P 충돌 예방 서비스가 실행되는 차량에 탑재된 OBU(On Board Unit)와, 상기 OBU와 WAVE 무선통신이 가능한 RSE(Road Side Equipment)와, 상기 보행자의 GNSS 위치정보를 WAN/Internet을 통해 전송가능한 사용자단말기; 및 상기 RSE와 WAN/Internet을 통해 상기 차량의 GNSS 위치정보와 상기 보행자의 GNSS 위치정보로부터 상기 차량과 상기 보행자간의 충돌가능성을 계산하여 상기 차량의 운전자와 상기 보행자의 사용자단말기에 위험신호를 전송하는 서버를 포함한다. 본 발명에 따르면, OBU는 차량의 GNSS와 보행자의 GNSS로 측정한 위치의 정확도가 낮고, ACK 패킷(packet)을 이용하여 실행되는 차량과 서버간 그리고 보행자와 서버간의 지연속도(latency)가 낮아도, 차량과 보행자간의 상대거리를 계산하여 WAVE를 통해 V2P 충돌 예방 서비스를 제공한다.
VEHICLE TO PEDESTRIAN (V2P) COLLISION PREVENTION SYSTEM AND METHOD THEREFOR
SYSTÈME DE PRÉVENTION DE COLLISION ENTRE UN VÉHICULE ET UN PIÉTON (V2P) ET PROCÉDÉ ASSOCIÉ
V2P 충돌예방 시스템 및 그 방법
2018-01-25
Patent
Electronic Resource
Korean
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION , Übertragung digitaler Information, z.B. Telegrafieverkehr / H04W WIRELESS COMMUNICATION NETWORKS , Drahtlose Kommunikationsnetze |
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