The invention discloses an expressway section vehicle variable speed limit real-time adjusting method and system based on big data. The system comprises a face recognition device, a weather detector, a traffic flow detection device, a control center and a variable speed limit display board. According to the obtained driving characteristics of the driver, the current weather quality data and the traffic parameters, constructing an SEM measurement model, establishing a constraint expression of latent variables and explicit variables of the measurement model, performing normalization preprocessing on the driving characteristics, the current weather quality data and a traffic flow parameter data set by using a MinMax scaler, and obtaining a data set of the driving characteristics, the current weather quality data and the traffic flow parameters; and splitting the high-dimensional matrix block into a low-dimensional matrix set based on a matrix pencil algorithm to obtain a data set to construct a feature matrix J, and performing data integration solution on the feature matrix J and the speed-limiting vehicle speed of the high-speed road section to obtain the real-time adjustment vehicle speed. The method can adjust and control the fixed speed limit value of the expressway section in real time in combination with a matrix big data algorithm, improves the dynamic capability, achieves the variable speed limit in a personalized manner, and improves the driving safety.
本发明公开了一种基于大数据的高速路段车辆可变限速实时调节方法及系统,包括人脸识别设备、气象检测器、交通流检测设备、控制中心、可变限速显示牌。根据获取的驾驶员的驾驶特性,当前天气质量数据和交通参数,构建SEM测量模型,建立测量模型的潜变量与显变量的约束表达式,利用MinMax缩放器对驾驶特性、当前天气质量数据和交通流参数数据集进行归一化预处理,基于矩阵束算法将高维矩阵块分拆为低维矩阵集,得到数据集构建特征矩阵J,特征矩阵J与高速路段限速车速进行数据整合求解,得到实时调节车速。本发明能够结合矩阵大数据算法对高速路段固定限速值实时调节控制,提高动态能力,个性化实现可变限速、提高驾驶安全性。
High-speed section vehicle variable speed limit real-time adjusting system and method based on big data
一种基于大数据的高速路段车辆可变限速实时调节系统及方法
22.10.2024
Patent
Elektronische Ressource
Chinesisch
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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