摘要
为了提高电网和电力设备数据采集的效率和精度,设计一种高速高精度的数据采集系统。介绍32位微处理器Coldfire5307和高速4通道14位A/D转换器AD7865的性能特点,以Coldfire5307为核心,复杂可编程逻辑器件(CPLD)为逻辑控制芯片,采用AD7865实现多路信号的同步采样,给出系统的软硬件结构。实验测试结果表明,系统能稳定地工作,为参量分析提供准确的数据来源。
In order to improve the efficiency and accuracy of data acquisition in grid and power equipment, a new data acqui- sition system of high speed and precision is designed. The performance characteristics of 32 bit microprocessor Coldfire5307 and high- speed four- channel 14 bits A/D converter is introduced, Coldfire5307 is used as the core, Complex Programmable Logic Device （CPLD） is used as the logic control chip, and AD7865 is used to sample the multi- channel signals simultaneous- ly,the system＇s structure of hardware and software is also given. Experiments showed that the system can work steadily and provide accurate data for parametric analysis.
出处
《现代电子技术》
2008年第10期160-163,共4页
Modern Electronics Technique
