基于ARM的嵌入式数据采集存储模块的设计与实现

发布时间：2018-01-19 14:18

本文关键词： 嵌入式数据采集存储模块 ARM　出处：《中国海洋大学》2013年硕士论文　论文类型：学位论文

【摘要】：气象数据采集系统是一套安装在船舶上的用以实时采集船舶周围气象数据的装置。该系统能够实时连续的采集船舶周围的风、温、湿、压等气象参数，能够自动接收船舶的航速、航向信息，，用以计算真风速和真风向。它还可以根据需要向船舶的其他设备提供实时的气象参数，为船舶的航行提供有力保障。本课题主要研究气象数据采集系统中的核心模块——数据采集存储模块。首先，论文阐述了海洋气象数据采集的重要意义以及国内外的发展现状，并阐述了论文的主要工作。其次，论文给出了本课题研究的数据采集存储模块的设计方案。根据总体设计方案，确定选用基于ARM920T为内核的S3C2440A作为中央处理器，扩展了256M SDRAM和64M NAND FLASH。硬件电路设计了A/D转换电路、计数电路、RS485转换电路，用来进行数据采集；设计了以太网接口，用于系统的对外通信；设计了CAN总线接口，用于系统内部各模块之间的数据传输；设计了SD卡接口，用于实现数据存储及查询数据的回放传输。论文详细论述了数据采集存储模块各部分的电路设计，完成了原理图和PCB板的设计。再次，论文在完成硬件平台电路板的设计后，研究了数据采集存储模块的软件架构以及软件下载的方法。最后，对数据采集存储模块进行了调试。经实验证明，本课题研究的数据采集存储模块满足系统设计的技术要求，能够实现数据采集、存储、通信功能。
[Abstract]:The meteorological data acquisition system is a set of equipment installed on the ship to collect the meteorological data around the ship in real time. The system can collect the meteorological parameters such as wind, temperature, humidity and pressure around the ship in real time and continuously. It can automatically receive the ship's speed and course information to calculate the true wind speed and the true wind direction. It can also provide real-time meteorological parameters to other equipment of the ship according to the need. This paper mainly studies the data acquisition and storage module, which is the core module of meteorological data acquisition system. First, the paper describes the importance of marine meteorological data collection and the development of the status quo at home and abroad, and describes the main work of the paper. According to the overall design scheme, we choose S3C2440A based on ARM920T as the central processor. It extends 256M SDRAM and 64M NAND flash. The hardware circuit designs the A / D conversion circuit, the counting circuit is RS485 conversion circuit, which is used for data acquisition. The Ethernet interface is designed for external communication of the system. The CAN bus interface is designed, which is used for the data transmission between the modules in the system. SD card interface is designed to realize data storage and query data playback transmission. This paper discusses the circuit design of each part of data acquisition and storage module and completes the design of schematic diagram and PCB board. After the design of the circuit board of the hardware platform, the software architecture of the data acquisition and storage module and the method of software download are studied. Finally, the data acquisition and storage module is debugged. The experimental results show that the data acquisition and storage module can meet the technical requirements of the system design and can realize the functions of data acquisition, storage and communication.
【学位授予单位】：中国海洋大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TP333;P409

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