【摘要】 为了解决高速公路出口存在的车辆驶出高速收费口耗时长、高速出口拥堵的问题,采用STC单片机STC11F32XE作为主要控制芯片,设计了一套高速公路快速放行提示系统。该系统由上位机、下位机和倒计时控制器3部分组成。其中,上位机通过地感线圈和车辆检测器获取车辆位置信息,控制语音模块给出语音提示,并由串口下发控制命令给下位机;下位机接收到控制命令后控制室外显示屏显示相应信息,同时与倒计时控制器通过并行通信方式控制倒计时屏计时。实际运行结果表明,本系统能达到提高高速公路放行速度的要求。该系统已在山西运城高速各路口安装使用。更多还原

【Abstract】 In order to solve problems of the vehicle’s transit time and congestion in freeway export, using STC microcontroller STC11F32XE as the main control chip,design a set of prompting system of highway rapid release.The system consists of upper machine,lower machine and countdown controller. The host machine gets the vehicle location information by the ground coil and the vehicle detector, voice control module gives voice prompts,and commands are issued to the lower machine by the serial control. After lower machine receives control commands,it controls the outdoor display screen to display the corresponding information,and at the same time,it control countdown screen to keep time with the countdown controller through the parallel communication.The practical operation shows that this system can effectively improve the freeway release speed.It has been installed in the Shanxi Yuncheng freeway intersection.更多还原