| 基于Labview串口通讯的虚拟数字电压表的设计 |
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| 引用本文： | 张力,晏红.基于Labview串口通讯的虚拟数字电压表的设计[J].三峡大学学报(自然科学版),2010,32(2):81-83,88. |
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| 作者姓名： | 张力 晏红 |
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| 作者单位： | 三峡大学,机械与材料学院,湖北,宜昌,443002 |
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| 摘 要： | 介绍了Labview环境下串口通讯的实现方法,利用89C51单片机作为下位机采集卡,进行数据采集,PC机作为上位机,二者之间通过串口实现数据通讯.为此,设计了单片机采集和通讯电路,编制了相应的C语言程序,该电路利用8位A/D转换器ADC0808采集电位器输出的电压信号,把转换出的数字量通过RS-232串口通讯送给上位机,同时在Labview开发平台上,设计了串口通讯、数据处理和电压显示的前面板和框图程序,开发了虚拟数字电压表.
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| 关 键 词： | 串口通讯 Labview 单片机 数据采集 虚拟电压表 |
Design of Virtual Digital Voltmeter Based on Serial Communication in Labview |
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| Zhang Li,Yan Hong.Design of Virtual Digital Voltmeter Based on Serial Communication in Labview[J].Journal of China Three Gorges University(Natural Sciences),2010,32(2):81-83,88. |
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| Authors: | Zhang Li Yan Hong |
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| Institution: | Zhang Li Yan Hong(College of Mechanical & Material Engineering,China Three Gorges Univ.,Yichang 443002,China) |
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| Abstract: | This article introduces realization method of serial communication based on Labview,the lower computer with 89C51 SCM collects data as acquisition card,then by the serial port,it sends data to upper PC.In order to do this,this article designs circuit of data acquisition and communication with SCM and writes relevant program file in C;the circuit contains analog-to-digital converter ADC0808;it can measure voltage from the movable arm of a potentiometer and send 8-bit digital signal to upper PC by RS 232.More... |
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| Keywords: | Labview |
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