求救求救：单片机毕业论文摘要汉译英（不要软件翻译）

本设计是基于单片机的可编程控制器的实现，本设计实现的功能比较简单，只需实现PLC简易的输入/输出与简单逻辑关系功能。在本设计中，根据以单片机（MCS-51系列）为核心元件，配合开关、继电器、指示灯以及串口工具RS-232等组成一个简易的PLC硬件及相关数据，适合于作简单的工业控制和其它场合的控制。
Originally is based on the piece machine may the program control regulator, this function compared to, only needs PLC easy to enter/and the department function. In this, according to by the piece machine (the MCS-51 series) the core part, the coordination, the instruction as well as serial port tool RS-232 and so on becomes an easy PLC hardware and according to, the control which suits in makes the labor control which and other gathers.
本设计中使用的单片机为ATMEL公司的AT89C51，在本次毕业设计过程中还涉及到了功能强大的Protel99 SE软件的使用，并利用此软件绘制了系统原理图。
关键词：单片机 AT89C51 可编程控制器 Protel99 SE
In this design uses the monolithic integrated circuit is ATMEL Corporation's AT89C51, also involved function formidable Protel99 in this graduation project process the SE software's use, and has drawn up the system schematic diagram using this software. key wor