摘要
为满足变电站对电力参数采集的实时性与准确性要求,提出并设计了一种基于嵌入式技术的高速数据采集系统。该系统以LPC2138微处理器为核心,利用硬件同步与软件纠错相结合的方法实现电力现场模拟量信号的采集与处理;并可通过RS-422总线与主机通信完成数据的存储、传输与处理;还可通过本地人机交互接口对系统进行维护和升级。应用实践表明,该系统采样精度高、成本低廉,且性能稳定、可靠。
In order to meet the real-time and reliability requirement of power data substation,this paper introduces the design and realization of intelligent system which based on LPC2138 ARM microcontrollers.They using hardware synchronization and software error correction to gather and process the analogue data of power grid,it can also be connected to the computer control system implementing data storage,transmission and exceptional event monitoring.Practical application shows that the system has some advantages such as high precision,low cost,performance stable and reliable.
出处
《自动化与仪器仪表》
2010年第6期68-71,共4页
Automation & Instrumentation
关键词
嵌入式技术
ARM
数据采集
embedded technology
ARM
data acquiring system
