Abstract: Interval speed measurement is an important part of intelligent transportation applications, and in order to solve the intelligent background of automotive students hands-on practice less, the transformation of the difficult problem, a set of interval speed measurement experimental system is designed in this paper. The experimental system takes 51 microcontrollers as the experimental platform, E18-D80NK photoelectric sensor for interval speed measurement, STC89C52RC as the main control chip, LCD1602 for speed display, and a rimmed buzzer as the speeding alarm device to complete the design of the whole interval speed measurement alarm system. Students can further stimulate interest in integrating into the intelligent learning of automobiles by building own interval speed measurement system and conducting tests.

Key words: Intelligence; Interval speed measurement; Simulation experiment; Teaching practice

摘要： 区间测速是智能交通应用的重要环节，为了解决智能化背景下汽车专业汽车区间测速 教学中学生上手实践少，转变难的问题，文章设计了一套区间测速实验系统。该实验系统以 51 单片机为实验平台，采用 E18-D80NK 光电传感器进行区间测速，同时以 STC89C52RC 作 为主控芯片，以 LCD1602 作为速度显示器，以蜂鸣器作为超速报警设备，完成整个区间测速 报警系统的设计。通过自行搭建区间测速系统并进行试验的方法，能进一步激发学生融入汽 车智能化学习的兴趣。

关键词: 智能化；区间测速；仿真实验；教学实践