本文關(guān)鍵詞： 嵌入式 數(shù)據(jù)采集存儲模塊 ARM　出處：《中國海洋大學(xué)》2013年碩士論文　論文類型：學(xué)位論文

【摘要】：氣象數(shù)據(jù)采集系統(tǒng)是一套安裝在船舶上的用以實時采集船舶周圍氣象數(shù)據(jù)的裝置。該系統(tǒng)能夠?qū)崟r連續(xù)的采集船舶周圍的風(fēng)、溫、濕、壓等氣象參數(shù)，能夠自動接收船舶的航速、航向信息，，用以計算真風(fēng)速和真風(fēng)向。它還可以根據(jù)需要向船舶的其他設(shè)備提供實時的氣象參數(shù)，為船舶的航行提供有力保障。本課題主要研究氣象數(shù)據(jù)采集系統(tǒng)中的核心模塊——數(shù)據(jù)采集存儲模塊。 首先，論文闡述了海洋氣象數(shù)據(jù)采集的重要意義以及國內(nèi)外的發(fā)展現(xiàn)狀，并闡述了論文的主要工作。其次，論文給出了本課題研究的數(shù)據(jù)采集存儲模塊的設(shè)計方案。根據(jù)總體設(shè)計方案，確定選用基于ARM920T為內(nèi)核的S3C2440A作為中央處理器，擴展了256M SDRAM和64M NAND FLASH。硬件電路設(shè)計了A/D轉(zhuǎn)換電路、計數(shù)電路、RS485轉(zhuǎn)換電路，用來進(jìn)行數(shù)據(jù)采集；設(shè)計了以太網(wǎng)接口，用于系統(tǒng)的對外通信；設(shè)計了CAN總線接口，用于系統(tǒng)內(nèi)部各模塊之間的數(shù)據(jù)傳輸；設(shè)計了SD卡接口，用于實現(xiàn)數(shù)據(jù)存儲及查詢數(shù)據(jù)的回放傳輸。論文詳細(xì)論述了數(shù)據(jù)采集存儲模塊各部分的電路設(shè)計，完成了原理圖和PCB板的設(shè)計。再次，論文在完成硬件平臺電路板的設(shè)計后，研究了數(shù)據(jù)采集存儲模塊的軟件架構(gòu)以及軟件下載的方法。最后，對數(shù)據(jù)采集存儲模塊進(jìn)行了調(diào)試。 經(jīng)實驗證明，本課題研究的數(shù)據(jù)采集存儲模塊滿足系統(tǒng)設(shè)計的技術(shù)要求，能夠?qū)崿F(xiàn)數(shù)據(jù)采集、存儲、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.
【學(xué)位授予單位】：中國海洋大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：TP333;P409

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本文編號：1444535