The invention discloses a safe traffic flow generation method. The method comprises the following steps: S1, traffic flow simulation environment modeling; s2, collecting online data; and S3, safe traffic flow driving behavior modeling: collecting training data by using a current strategy, and then collecting batch data from the data to update the value network, the cost network and the strategy network. According to the invention, a reward function and a cost function are designed, the reward function is used for measuring the driving efficiency, the design is mainly considered from the angles of speed and collision, the higher the speed is, the larger the reward is, and the larger the corresponding punishment is if the collision occurs. The cost function is designed to measure the safety of the current driving state, the cost function is obtained by transforming the TTC, and if the TTC is small, it is indicated that the current state is not safe, and the cost will be high.

    本发明公开了一种安全交通流生成方法,包括如下步骤:S1、交通流仿真环境建模;S2、在线数据收集;S3、安全交通流驾驶行为建模:先使用当前策略收集训练数据,然后从数据中采集批量数据以更新价值网络、代价网络、策略网络。本申请设计一种奖励函数与代价函数,其中奖励函数是为了度量行驶效率,其设计主要从速度与碰撞角度来考虑的,速度越大奖励就会越大但如果发生碰撞对应的惩罚也会越大。设计代价函数是为了衡量当前行驶状态的安全性,代价函数是对TTC进行变换而来的,如果TTC较小表明当前状态不安全,那么代价就会较高。


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    Title :

    Safe traffic flow generation method


    Additional title:

    一种安全交通流生成方法


    Contributors:
    WANG YONGSHA (author) / HUANG YONGCHAO (author) / FAN LIBO (author) / ZHANG XU (author) / SHAO YANQI (author) / SHU DEWEI (author) / GAN LU (author) / LUO QING (author) / LONG PENGYU (author)

    Publication date :

    2024-10-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



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