The invention provides a traffic information estimation method, and the method comprises the steps: constructing a cumulative distribution function generator which comprises an input layer, an output layer and a middle layer; neurons of the middle layer respectively adopt an exponential distribution function, a normal distribution function or a logarithmic normal distribution function as activation functions. Outputting a cumulative distribution function of the estimated call time by using the constructed cumulative distribution function generator, and performing derivation on the cumulative distribution function of the estimated call time so as to obtain a probability density function of the estimated call time; and estimating traffic information through the estimated probability density function of the call time and the number of cellular network signals, wherein the traffic information comprises traffic flow, vehicle speed or traffic density. The method has the advantages that the call holding time and the arrival time of the next call can be more accurately predicted, and the accuracy of traffic information estimated by a traffic data estimation model is effectively improved.

    本发明提供了一种交通信息的估计方法,方法包括构建累积分布函数生成器,所述累积分布函数生成器包括一个输入层、一个输出层以及一个中间层;所述中间层的神经元分别采用指数分布函数、正态分布函数或对数正态分布函数作为激活函数;利用构建的累积分布函数生成器输出估计的通话时间的累积分布函数,对估计的通话时间的累积分布函数进行求导,从而获得估计的通话时间的概率密度函数;通过估计的通话时间的概率密度函数和蜂窝网络信号的数量估计出交通信息,所述交通信息包括交通流量、车速或交通密度。本发明优点:能够对通话保持时间与下一次通话到达的时间进行更准确预测,有效提升交通数据估计模型估计出的交通信息的准确率。


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    Title :

    Traffic information estimation method


    Additional title:

    一种交通信息的估计方法


    Contributors:
    LIU XIAOJUAN (author) / ZHANG YIZHUO (author) / TANG HONGAN (author)

    Publication date :

    2023-10-27


    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 / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / G06N COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS , Rechnersysteme, basierend auf spezifischen Rechenmodellen



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