直流电压信号采集微系统设计  

A Design Scheme of DC Voltage Signal Acquisition Micro System

作　　者：吴克文[1] WU Kewen(Huanggang Polytechnic College,School of Electronic Information,Huanggang 438002,China)

机构地区：[1]黄冈职业技术学院电子信息学院

出　　处：《电镀与精饰》2019年第9期39-42,共4页Plating & Finishing

基　　金：国家级大学生创新创业训练计划项目(SRTP1)(201710360068);国家级大学生创新创业训练计划项目(SRTP2)(201710360071)

摘　　要：为满足某些弱电系统中对外部多路直流电压信号进行采集的特殊要求,本文利用现代信息电子技术,从硬件电路构建和软件程序控制两个方面设计出一套较为简单的直流电压信号瞬态值采集微系统。该系统的特色在于通过SCMC/EMCU 51、PCF8591芯片和DS1302芯片等器件将脉冲编码调制(PCM)技术和定时提取技术核心思想进行有机结合,轻松实现对外部多路直流电压信号的瞬态采样,能够简化一般的信号采集方案,进一步降低系统采集成本,具有一定的适用性。In order to meet the special requirement of collecting the external DC voltage signals in some weak electric systems,in this paper,a simple set of transient voltage signal acquisition micro system was designed from two aspects of hardware circuit construction and software program control using modern information electronic technology.The characteristic of the system is to combine the pulse code modulation(PCM)technology with the core idea of the timing extraction technology through SCMC/EMCU 51,PCF8591 chip and DS1302 chip.The system can easily realize the transient sampling of external multi-channel DC voltage signals,simplify the general signal acquisition scheme,further reduce the cost of system acquisition,and has a certain applicability.

关 键 词：SCMC/EMCU 51 PCF8591 DS1302 PCM技术 定时提取 

分 类 号：TM451[电气工程—电器]