| 高精度模拟量采集卡的设计与实现 |
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| 引用本文： | 刘暾东,柳小鹏,余齐齐.高精度模拟量采集卡的设计与实现[J].计算机测量与控制,2006,14(11):1575-1577,1588. |
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| 作者姓名： | 刘暾东 柳小鹏 余齐齐 |
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| 作者单位： | 厦门大学,自动化系,福建,厦门,361005 |
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| 摘 要： | 介绍了基于Modbus通讯协议的高精度模拟量采集卡的软硬件设计与制作；由于采用了高精度A／D转换芯片CS5532，该采集卡可以通过软件分时的方法采集8路24位模拟量信号，特别适用于高精度工业现场数据采集；同时，采集卡使用基于Modbus协议的RS-485总线通信方式，实现了数据的远程通信；系统软件采用MCS-51汇编语言和C语言混合编写，既可提高开发效率又保证了A／D转换的精确性。
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| 关 键 词： | 单片机 模拟量采集 抗干扰 |
| 文章编号： | 1671-4598（2006）11-1575-03 |
| 收稿时间： | 2006-02-27 |
| 修稿时间： | 2006-02-272006-04-04 |
Design and Realization of High Precision Analog Data-Acquisition Card |
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| Liu Tundong,Liu Xiaopeng,Yu Qiqi.Design and Realization of High Precision Analog Data-Acquisition Card[J].Computer Measurement & Control,2006,14(11):1575-1577,1588. |
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| Authors: | Liu Tundong Liu Xiaopeng Yu Qiqi |
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| Affiliation: | Automation Dept. , Xiamen University, Xiamen 361005, China |
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| Abstract: | Design and manufacture of a high precision analog-data-acquisition card is introduced. This card provides 8 analog input channels, using 24bit high precision AD converter CS5532, so it can can be smoothly applied to high precision industrial field. At the same time, Modbus protocol based RS-485 bus were used to achieve long-distance communication. The software development in this system uses both MCS-51 assembly and C language, which can not only shorten the development cycle but also ensure high quility A/D conversion. |
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| Keywords: | Modbus |
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