摘要数字频率计作为电力系统中必不可少的对信号频率的监测设备，如今正向简易化、微型化、智能化以及多功能化方向发展。根据当今频率计的技术指标和发展要求，结合传统测频方法设计了一款全电子化数字频率计。该频率计使用基于ARM内核的STM32F103ZET6单片机作为控制核心，利用其定时器具有输入捕获的特性设计了测频程序。同时，围绕单片机设计了滤波模块、整形模块、显示模块和串口模块等相关功能模块完成了信号采集和数据处理。另外，设计了上位机程序实现将频率值以图表显示的功能，完成了对信号频率的测量以及频率波动分析。87402

毕业论文关键词    单片机  数字频率计  频率波动

毕业设计说明书外文摘要

Title           Design of Digital Frequency Meter  Based on SCM                     

Abstract Nowadays, the digital frequency meter as a essential monitoring device for signal frequency in power system is developing to the direction of simplification, miniaturization, intelligence and multi-function。 In this paper, a full-electronic digital frequency meter is designed according to the technique target and the development requirement of the current frequency meter, combined with the traditional frequency measurement method。 The ARM kernel STM32F103ZET6 is used as the control core of meters。 The frequency measurement procedure is designed using its timer with input capture characteristics。 At the same time, the filter module, shaping module, display module and serial module and other related function modules are designed to complete the collection of the data and the processing of the signal。 In addition, the host computer processing is designed to achieve the function of displaying frequency values in a chart,which can complete the measurement of the signal frequency and the frequency fluctuation analysis。

Keywords  SCM   digital frequency meter   frequency fluctuation

目   次

1 引言 1

1。1 数字频率计发展现状 1

1。2 数字频率计发展趋势 1来-自+优=尔;论.文:网www.youerw.com +QQ7520.18766

1。3 本课题研究的主要内容 2

2 频率测量原理 3

2。1 频率测量概述 3

2。2 传统频率测量方法 3

3 系统硬件设计 6

3。1 系统硬件简介 6

3。2 系统硬件总体架构 7

3。3 各硬件模块具体设计 8

3。4 系统硬件总图 16

3。5 本章小结 16

4 系统软件设计 17

4。1 软件总体设计 17

4。2