| 基于C8051F350的多路高精度数据采集系统及应用 |
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| 引用本文： | 沈金鑫,夏静.基于C8051F350的多路高精度数据采集系统及应用[J].电子设计工程,2014(5):154-156. |
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| 作者姓名： | 沈金鑫 夏静 |
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| 作者单位： | 南京理工大学机械工程学院,江苏南京210094 |
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| 摘 要： | 为针对一般的数据采集系统精度较低、价格较高的问题,设计了一种低成本、高精度的多路数据采集系统.系统由上、下位机两部分组成,上、下位机通过RS-485总线进行通信.下位机选用C8051F350作为主控制器,A/D转换采用C8051F350内部24位∑-△型ADC,并设计了RS-485总线接口,便于接入RS-485总线网络.上位机软件使用LabVIEW编写,具有较好的人机交互界面.实际使用表明,该系统能够满足高精度数据采集的要求.
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| 关 键 词： | 数据采集 高精度 C8051F350 LabVIEW 虚拟仪器 RS-485 |
Multi-channel high precision data acquisition system and applications based on C8051F350 |
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| SHEN Jin-xin,XIA Jing.Multi-channel high precision data acquisition system and applications based on C8051F350[J].Electronic Design Engineering,2014(5):154-156. |
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| Authors: | SHEN Jin-xin XIA Jing |
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| Affiliation: | (Mechanical Engineering School, Nanjing University of Science and Technology, Nanjing 210094, China) |
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| Abstract: | Because general data collector accuracy is lower,the price is higher; we design a low cost and high precision data acquisition system.The system was composed of upper computer and lower computer,upper and lower computer communicated with each other with the RS-485 bus.The lower computer system chose C8051F350 as the main controller,used the C8051F350 the internal 24Σ-△ ADC to achieve A/D conversion,and RS-485 bus interface is designed for easy access to the RS-485 bus network.PC software based on the LabVIEW platform has good humancomputer interaction interface.Practical use shows that the system can meet the requirements of high precision data acquisition. |
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| Keywords: | data acquisition precision C8051F350 LabVIEW virtual instrument RS-485 |
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