1、 I 基于单片机的多路数据采集系统设计基于单片机的多路数据采集系统设计 The Design Of The Design Of MultiMulti- -channel channel D Data ata A Acquisitioncquisition SystemSystem B Based ased O On n SCMSCM 摘要摘要 本文介绍了基于单片机的数据采集的硬件设计和软件设计，数据采 集系统是模拟域与数字域之间必不可少的纽带，它的存在具有着非常重 要的作用。本文介绍的重点是数据采集系统，而该系统硬件部分的重心 在于单片机。数据采集与通信控制采用了模块化的设计，数据采集与通 信
2、控制采用了单片机 AT89S52 来实现，硬件部分是以单片机为核心，还 包括 A/D 模数转换模块，显示模块，和串行接口部分。该系统从机负责 数据采集并应答主机的命令。8 路被测电压通过模数转换器 ADC0809 进 行模数转换，实现对采集到的数据进行模拟量到数字量的转换，并将转 换后的数据通过串行口 MAX232 传输到上位机，由上位机负责数据的接 受、处理和显示，并用 LED 数码显示器来显示所采集的结果。软件部分 应用 VC+编写控制软件，对数据采集系统、模数转换系统、数据显示、 数据通信等程序进行了设计。 关键词关键词：数据采集 89C52单片机 ADC0809 MAX232 II A
3、bstract This article describes the hardware design and software design of the data on which based on signal-chip microcomputer .The data collection system is the link between the digital domain and analog domain. It has an very important function. The introductive point of this text is a data to col
4、lect the system. The hardware of the system focuses on signal-chip microcomputer .Data collection and communication control use modular design. The data collected to control with correspondence to adopt a machine 8051 to carry out. The part of hardwares core is AT89S52, is also includes A/D conversion module, display module, and the serial interface. Slave machine is responsible for data acquisition and answering the host machine.8 roads were measured the electric voltage to pass the in ge
