摘要
为了准备第三届"飞思卡尔杯全国大学生智能汽车竞赛",针对智能汽车比赛计时的问题,设计制作了一种单赛道智能小车计时器。采用对射式光电开关作为传感器,巧妙地运用MAX232的DC/DC转换器功能,利用RS 232接口输入脉冲信号计时,完成硬件接口电路。采用C++.NET编程,设计完成智能车计时控制程序。该计时器硬件线路简单,成本低廉,实际应用效果良好,可以广泛应用于智能赛车竞赛和性能测试研究。
Preparing for the third＂Freescale Cup National Undergraduates Intelligent Car Contest＂, a timer is manufactured to solve the problem of timing. A photoelectric switch is used as a sensor to give the signal of timing pulse to computer via serial port. The Max232, which has dual charge- pump DC- DC voltage converters,C^＋＋. NET is used to programme. The timer is inexpensive and do work well.
出处
《现代电子技术》
2008年第19期192-194,共3页
Modern Electronics Technique
关键词
计时器
智能车竞赛
串行接口
光电开关
timer
intelligent car contest
serial port
photoelectric switch
