请英文好的朋友帮忙翻译下 （人工翻译 刚注册分全给）

来源：百度知道 编辑：UC知道 时间：2024/07/08 13:02:45
用MSC-51系列单片机ATSC51和可编程并行I/O接口芯片8255A为中心器件来设计交通灯控制器，实现了能根据实际车流量通过8051芯片的P1口设置红、绿灯燃亮时间的功能；红绿灯循环点亮，倒计时剩5秒时黄灯闪烁警示（交通灯信号通过PA口输出，显示时间直接通过8255的PC口输出至双位数码管）；车辆闯红灯报警；绿灯时间可检测车流量并可通过双位数码管显示。本系统实用性强、操作简单、扩展功能强。

The designing of traffic light controller with single chip microprocessor series MSC-51 and programmable parallel I/O interface chip 8255A as central device, realizes the function to set the red / green lighting time according to the actual vehicle flowrate by the PI port of 8051 chip. Red and green lights in turn, the yellow flashes to warn from 5 seconds countdown. ( Traffic light signal is output through PA port, indicating timer is output directly to dual-digit tube through the PC port of 8255. ) Any run in the red light will be alarmed; in green, traffic flow can be detected and displayed through the dual-digit tube. The system is very practical, easy to operate, and powerful to expand functions.

This system adopt MSC-51 series monolithic machine ATSC51 and the parallel I/O interface chip weave Cheng to have realized the function being able to according to actual vehicle rate of flow by the fact that 8051 chips P1 mouth interposing redly , green light burning bright time