The invention relates to the technical field of safety analysis, and discloses an automatic driving safety analysis system and method based on big data, and the system comprises a main control unit which is used for calculating a safe vehicle following distance according to a current final adhesion coefficient obtained by an information processing module, and adjusting the speed of the vehicle according to the current distance between the vehicle and the front vehicle so as to control the distance between the vehicle and the front vehicle not to exceed the safe vehicle following distance. According to the method, the road photo is shot, the road photo and the sample photo are compared through image fusion similarity, the initial road adhesion coefficient of the current road is selected, and the initial road adhesion coefficient is compared with the verification adhesion coefficient, so that the verification calculation range of the initial road adhesion coefficient is narrowed; therefore, the response time of the main control unit is shortened, the response speed of the braking system of the automobile is further improved, and the braking performance of driving is enhanced.
本发明涉及安全分析技术领域,公开了一种基于大数据的自动驾驶安全分析系统及方法,包括主控单元,其根据所述信息处理模块所获取的当前最终附着系数计算安全跟车距离,根据当前自车与前车的距离调整所述自车车速以控制自车与前车的距离不超过所述安全跟车距离。本发明通过拍摄道路照片,将道路照片和样本照片采用图像融合相似度的比较选取当前道路的初始道路附着系数,并通过该初始道路附着系数与验证附着系数进行比较,以缩小初始道路附着系数的验证计算范围,从而缩短主控单元的响应时间,进一步地提高了汽车的制动系统响应速度,加强了行驶的制动性能。
Automatic driving safety analysis system and method based on big data
一种基于大数据的自动驾驶安全分析系统及方法
2023-03-03
Patent
Electronic Resource
Chinese
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