| 基于FPGA的多路数据实时采集与传输系统 |
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| 引用本文： | 冯希辰,杨帆,刘登学,唐可然.基于FPGA的多路数据实时采集与传输系统[J].微电子学,2016,46(4):511-514. |
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| 作者姓名： | 冯希辰 杨帆 刘登学 唐可然 |
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| 作者单位： | 中国电子科技集团公司 第二十四研究所, 重庆 400060,中国电子科技集团公司 第二十四研究所, 重庆 400060,中国电子科技集团公司 第二十四研究所, 重庆 400060,中国电子科技集团公司 第二十四研究所, 重庆 400060 |
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| 摘 要： | 针对传统数据采集系统的硬件设计复杂、开发周期长、精度低和实时性差等问题,提出了一种基于FPGA的多路数据实时采集与传输系统,并完成了系统程序构架。该系统以FPGA作为核心控制单元,采集到32路模拟信号和1路数字信号,根据数据发送帧格式,转换成连续不间断的SPI信号输出。采用Labview软件构建了高速UART数字信号验证平台。实验结果表明,模拟信号经14位A/D采样得到的数字信号与理论值相差的最大值为±3 LSB,采样精度达0.04%。数字信号传输稳定、无误码,实现了模拟信号的高精度实时采集与稳定传输。
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| 关 键 词： | 数据采集 多路数据 实时 高精度 |
A Multi-Channel Real-Time Data Acquisition and Transmission System Based on FPGA |
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| FENG Xichen,YANG Fan,LIU Dengxue and TANG Keran.A Multi-Channel Real-Time Data Acquisition and Transmission System Based on FPGA[J].Microelectronics,2016,46(4):511-514. |
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| Authors: | FENG Xichen YANG Fan LIU Dengxue and TANG Keran |
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| Affiliation: | Sichuan Institute of Solid-State Circuits,China Electronics Technology Group Corporation,Chongqing 400060,P. R .China,Sichuan Institute of Solid-State Circuits,China Electronics Technology Group Corporation,Chongqing 400060,P. R .China,Sichuan Institute of Solid-State Circuits,China Electronics Technology Group Corporation,Chongqing 400060,P. R .China and Sichuan Institute of Solid-State Circuits,China Electronics Technology Group Corporation,Chongqing 400060,P. R .China |
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| Abstract: | As the traditional data acquisition systems have the characteristics of complex hardware design, long development cycle, low accuracy and poor real-time performance, a multi-channel real-time data acquisition and transmission system based on FPGA was designed, and its system program architecture was completed. The system used FPGA as the core control unit. 32 analog signals and 1 digital signal were collected and converted into continuous SPI signal according to the frame format. A high-speed UART digital signal verification platform was constructed by using Labview. The verification tested results showed that the largest difference between digital signals obtained by 14 bit A/D sampling and the standard value was ±3 LSB, and the sampling accuracy was up to 0.04%. The digital signal transmission was stable and no errors occurred. The system had realized real-time acquisition and stable transmission of analog signal with high precision. |
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