The invention relates to the technical field of urban road pedestrian and truck collision prevention, in particular to a method for constructing a truck-oriented collision early warning model at a pedestrian crossing, which comprises the following steps (1), (2) and (3). Firstly, tracks of pedestrians and trucks are predicted and estimated, whether collision possibly occurs or not is judged, and collision points are calibrated; secondly, the possibility of emergency braking of the truck is reduced, a short-term early warning model is established, a driver is reminded of collision risks in advance, and the driver is indicated to slow down; thirdly, aiming at the braking characteristics of the truck, the braking process of the truck is analyzed, and an instantaneous early warning model based on the minimum safety distance is established; finally, simulation verification is carried out, the short-term early warning model can reduce the possibility of emergency braking when the truck approaches the limit safety distance and slow down the speed of emergency braking, and the occurrence rate of accidental safety accidents caused by emergency braking of the truck is fundamentally reduced; the traffic safety is improved, and the traffic passing efficiency is improved at the same time.

    本发明涉及城市道路行人与大货车防碰撞技术领域,具体为一种人行横道处面向大货车的碰撞预警模型构建方法,包括以下步骤1)、2)、3)。首先,对行人和大货车的轨迹进行预测和估计,判定是否可能发生碰撞并标定碰撞点;其次,考虑减少大货车紧急制动的可能性,建立短期预警模型,对驾驶员先行提示碰撞风险,示意其减速慢行;再次,针对大货车制动特点,分析了大货车制动过程,建立了基于最小安全距离的瞬时预警模型。最后进行仿真验证,短期预警模型可以减少大货车接近极限安全距离时做紧急制动的可能性和变缓做紧急制动时的速度,从根本上降低大货车因紧急制动造成意外安全事故的发生率;在增加交通安全性的同时提高了交通通行效率。


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    Title :

    Method for constructing truck-oriented collision early warning model at pedestrian crossing


    Additional title:

    一种人行横道处面向大货车的碰撞预警模型构建方法


    Contributors:
    YAO JIAO (author) / CHO JUNG (author) / HAN YIN (author) / LIU JIAKUN (author) / WANG JIAWEN (author) / HE JIAPING (author) / LI JUNJIE (author) / LI JIAYANG (author) / CHEN XIN (author) / WU XIURONG (author)

    Publication date :

    2022-10-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion



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