基于Petri网的车辆交通实时调度研究

A Study for Vehical Traffic Scheduling Based on Petri Nets

设计了一种交叉路口车辆交通实时调度策略,建立了交叉路口交通系统的受控着色PN模型,定义了单个方向上路口车辆的整体等待时间和平均等待时间,实时的根据两个方向上整体等待时间的差值和平均等待时间的差值实现红绿灯的切换。

A real-time traffic scheduling strategy for vehicles in crossroads is presented, A controlled color Petri net model is constructed for the vehicle traffic system of a crossroad. This Petri net model is utilized to define the sum of waiting time of one way. Similarly, the average waiting time of one way is defined. Then a method is given to perform the light switch according to the difference between the sums of waiting time of two ways and that between the average waiting time of two ways.