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为了进一步提高十字路口的车辆通行效率,提出基于CAN总线的交通管理智能控制设计方案。该系统包括硬件控制模块、车流量采集模块、上位机软件等部分。硬件控制模块由主控模块、驱动模块、硬件黄闪模块等组成。主控模块与驱动模块之间采用CAN总线通信,具有通信速率高、可靠性好的优点。主控模块负责协调调度各个模块之间的工作;驱动模块负责驱动路口的信号灯及故障检测;车流量采集模块负责采集排队车流量数据,为智能配时提供依据。调试结果表明,该控制系统能够根据车流量智能调节车辆通行时间,提高车辆通行效率。
In order to further improve traffic efficiency at intersections, a traffic control intelligent control design scheme based on CAN bus is proposed. The system includes hardware control module, traffic flow acquisition module, PC software and other parts. Hardware control module consists of the main control module, drive module, hardware yellow flash module. The main control module and the drive module using CAN bus communication, with high communication speed, good reliability. The main control module is in charge of coordinating and scheduling the work among various modules; the driving module is responsible for driving the signal light and the fault detection at the intersection; the traffic collecting module is responsible for collecting the traffic data of the queuing car and providing basis for the intelligent timing. The debugging results show that the control system can intelligently adjust the vehicle travel time according to the traffic volume and improve the traffic efficiency.