基于S3C2440的移频监测系统的设计与实现
发布时间：2019-05-09 07:19
【摘要】：数字信息已经完全融入生存的这个时代，目前，几乎所有信息控制领域都采用大量的嵌入式系统来完成所需的各种工作。本文研究并最终实现了利用ARM2440嵌入式平台开发用于微机监测系统中的移频采集机功能。本文开发的这个系统所使用的处理器的型号为S3C2440A，它的主频高达400MHz，而且它具有强大的运算能力。利用该芯片以及各种外围器件实现的移频采集机功能一方面可以满足移频监测的快速准确特性，另一方面可以在该平台上实现所需的人机交互界面，用于形象的展示所有其他功能模块，为将来开发各种新功能提供了便利，提高了平台的可扩展性。 本文首先详细说明了移频信号的基本概念和生成原理，并全面介绍了移频测量的基本步骤和内容。除此之外，本文利用工业领域比较常用的Matlab软件仿真和实现了移频算法，并对其与数学计算获得的数据进行分析，中心频率的精度为1Hz，测量精确度可以满足要求的0.1Hz，从而说明了其可行性。最后，本文利用S3C2440嵌入式平台以及平台上的AD模块和定时器等相关硬件以及通过嵌入式软件编程实现了移频监测系统，并最终能够在液晶显示屏上显示相关结果和供相关人员操作，实现了当初提出的实时采样指标。 本文所实现的移频监测系统的整体设计思路是：首先，对ZP-89以及ZPW-2000A类型的移频输入信号进行调整，达到降压的目的；其次，利用A/D转换器对输入的信号进行采样，这些信号能够给提供系统所需的频率；接着，采用傅利叶变换以及ZFFT等常用的信号处理公式，方便求出这些信号的移频信息；最后，利用硬件平台的液晶显示器以直观的方式实时输出计算出的移频信息，并且操作人员可以利用触摸屏或者按键操作和控制相关信息显示，方便使用。 利用S3C2440嵌入式平台开发移频采集机虽然实现了当初所提的各种指标，但由于平台处理芯片以及各种外围芯片的固有限制，最终开发完成的移频采集机在实时采样时会有部分信息无法采集到，即使利用ZFFT算法也无法获取这些缺失的信息。因此，，系统有进一步完善的空间。
[Abstract]:Digital information has been fully integrated into the age of survival. At present, almost all fields of information control use a large number of embedded systems to accomplish the required work. In this paper, the function of frequency shift collector used in microcomputer monitoring system is developed by using ARM2440 embedded platform. The processor used in this system is S3C2440A, its main frequency is up to 400MHz, and it has powerful computing ability. On the one hand, it can meet the fast and accurate characteristics of frequency shift monitoring, and on the other hand, it can realize the human-computer interface on the platform, which can be realized by using the chip and various peripheral devices to realize the function of the frequency-shift acquisition machine. It is used to display all other functional modules, which provides convenience for the future development of various new functions and improves the scalability of the platform. In this paper, the basic concept and generation principle of frequency shift signal are described in detail, and the basic steps and contents of frequency shift measurement are introduced in detail. In addition, this paper simulates and implements the frequency shift algorithm by using Matlab software, which is commonly used in the industrial field, and analyzes it with the data obtained by mathematical calculation. The accuracy of the center frequency is 1Hz, and the measurement accuracy can meet the requirements of 0.1Hz. Thus, the feasibility of this method is illustrated. Finally, this paper realizes the frequency shift monitoring system by using S3C2440 embedded platform, AD module, timer and other related hardware on the platform, as well as the embedded software programming. Finally, the related results can be displayed on the liquid crystal display screen and can be operated by the relevant personnel, and the real-time sampling index originally proposed is realized. The overall design idea of the frequency shift monitoring system implemented in this paper is as follows: firstly, the frequency shift input signals of ZP-89 and ZPW-2000A are adjusted to achieve the purpose of reducing pressure; Secondly, the A 鈮
本文编号：2472581
[Abstract]:Digital information has been fully integrated into the age of survival. At present, almost all fields of information control use a large number of embedded systems to accomplish the required work. In this paper, the function of frequency shift collector used in microcomputer monitoring system is developed by using ARM2440 embedded platform. The processor used in this system is S3C2440A, its main frequency is up to 400MHz, and it has powerful computing ability. On the one hand, it can meet the fast and accurate characteristics of frequency shift monitoring, and on the other hand, it can realize the human-computer interface on the platform, which can be realized by using the chip and various peripheral devices to realize the function of the frequency-shift acquisition machine. It is used to display all other functional modules, which provides convenience for the future development of various new functions and improves the scalability of the platform. In this paper, the basic concept and generation principle of frequency shift signal are described in detail, and the basic steps and contents of frequency shift measurement are introduced in detail. In addition, this paper simulates and implements the frequency shift algorithm by using Matlab software, which is commonly used in the industrial field, and analyzes it with the data obtained by mathematical calculation. The accuracy of the center frequency is 1Hz, and the measurement accuracy can meet the requirements of 0.1Hz. Thus, the feasibility of this method is illustrated. Finally, this paper realizes the frequency shift monitoring system by using S3C2440 embedded platform, AD module, timer and other related hardware on the platform, as well as the embedded software programming. Finally, the related results can be displayed on the liquid crystal display screen and can be operated by the relevant personnel, and the real-time sampling index originally proposed is realized. The overall design idea of the frequency shift monitoring system implemented in this paper is as follows: firstly, the frequency shift input signals of ZP-89 and ZPW-2000A are adjusted to achieve the purpose of reducing pressure; Secondly, the A 鈮
本文编号：2472581
本文链接：https://www.wllwen.com/kejilunwen/jisuanjikexuelunwen/2472581.html
