摘要
提出了一种基于SOC的高频双向脉冲幅值的采集与测试的方法,将高频双向脉冲信号经过一系列的衰减、滤波、平移,得到0～2.4V的电压信号,经过核心处理芯片的处理,把采集的数据通过串口通信,在计算机控制界面上实时显示。在数据处理方面,结合了中值滤波法以及最小二乘法的思想,把采集的噪声信号滤除,并还原输入信号的原始值。本设计实现对高频双向脉冲幅值的低功耗、高精度以及实时性的采集,介绍了对高频双向脉冲采集的解决方案以及软硬件实现方法。将本设计的采集方案用于对火焰探测器的检测,提高了检验效率以及检测准确性,对火焰探测器的生产与研究有着重大的意义。
The amplitude acquisition and test method of the high frequency two-way pulse is put forward based on the SOC.First,the high frequency two-way pulse signal is changed to a voltage signal whose amplitude range 0 to 2.4 V after attenuation,filtering and translation.Second,process the voltage signal through the core chip.Third,display the data on computer in real-time through the serial communication.In data processing,the median filtering is combined with the thought of least square.Filter the noise of the acquisition signal and restore the original value of the input signal.The design implements the amplitude collection of the high frequency two-way pulse in low power consumption,high precision and real-time collection.This paper introduces the acquisition solution of the high frequency two-way pulse and the realization method of the hardware and the software.This design method used in the test of the flame detector can improve the efficiency and accuracy.It has great significance for the production and research of the flame detector.
出处
《电子测量技术》
2012年第5期95-98,102,共5页
Electronic Measurement Technology
关键词
高频双向脉冲
数据采集
低功耗
the high frequency two-way pulse
data acquisition
low power consumption
