基于车辆通过频率的智能交通控制器研究

Study on intelligent traffic control system based on traffic frequency

通过环形线圈来测定车辆在行驶过程中实时通过的频率,从而判定某一条支线道路上车流量的多少。通过车辆采集卡把由环形线圈采集到的脉冲数据传输到FPGA(field programmable gate array),运用模糊控制技术,设计了一种基于车辆通过频率的单交叉口多相位的交通自适应控制策略,通过FPGA技术进行设计并仿真,仿真结果表明,采用模糊控制所设计的智能交通控制器能有效缩短运行周期,减少车辆排队长度。

This paper estimated how many cars are in the road through the frequency of cars getting across the detector, and transfered the data to PC by vehicle synchronous detection which detects from loop vehicle detector, and then, based on fuzzy control principle put forward a control policy considering vehicle cross frequency at the single intersection and multiple phase, and simulated it by FPGA. The simulation result shows that intelligent traffic control could cut cycle time and reduce the queue length.