基于ARM的無(wú)線(xiàn)數(shù)據(jù)采集系統(tǒng)的設(shè)計(jì)

摘 要

無(wú)線(xiàn)數(shù)據(jù)采集系統(tǒng)，不僅能很好地滿(mǎn)足各行業(yè)信息采集的需求，而且也為各行業(yè)提高了生產(chǎn)和工作效率，減少建設(shè)成本和運(yùn)營(yíng)成本，創(chuàng)造了很好的經(jīng)濟(jì)效益和社會(huì)效益，符合經(jīng)濟(jì)建設(shè)和社會(huì)發(fā)展的要求。在信息采集系統(tǒng)中，采用無(wú)線(xiàn)方式進(jìn)行信息的傳輸，可避免布線(xiàn)的麻煩，有效擴(kuò)展控制距離和范圍。
本課題研究的是對(duì)溫度的采集和無(wú)線(xiàn)傳輸。溫度信息的采集與處理是信息采集與處理領(lǐng)域經(jīng)常要解決的問(wèn)題，應(yīng)用廣泛。本課題使用ARM7開(kāi)發(fā)板、DS18B20溫度傳感器和nRF905無(wú)線(xiàn)模塊搭建無(wú)線(xiàn)采集的硬件系統(tǒng)。ARM7作為控制核心，控制DS18B20和nRF905無(wú)線(xiàn)模塊的工作狀態(tài)，以實(shí)現(xiàn)對(duì)整個(gè)系統(tǒng)的控制。DS18B20采集現(xiàn)場(chǎng)的溫度，傳輸給ARM7處理，nRF905使用433MHz的無(wú)線(xiàn)頻段將數(shù)據(jù)發(fā)射出去。系統(tǒng)的軟件設(shè)計(jì)使用ARM開(kāi)發(fā)環(huán)境ADS1.2，并通過(guò)Jtag口進(jìn)行在線(xiàn)仿真調(diào)試。本論文介紹了系統(tǒng)整體方案的設(shè)計(jì)、硬件設(shè)計(jì)、軟件設(shè)計(jì)。最終整個(gè)系統(tǒng)實(shí)現(xiàn)對(duì)溫度的現(xiàn)場(chǎng)采集，然后經(jīng)過(guò)無(wú)線(xiàn)傳輸，在電腦上實(shí)時(shí)顯示。     

關(guān)鍵詞：無(wú)線(xiàn)采集  ARM7  DS18B20  nRF905
 
Abstract

Wireless data acquisition system can not only satisfy the needs of various sectors of information collection, but also improve production and working efficiency. It reduces construction costs and operating costs and creates a good economic benefit and social benefit, in line with economic construction and social development. In the information acquisition system, transmitting the data wirelessly can avoid the wiring problems and expanding the control distance.
The project researches how to acquire temperature and transmit the temperature wirelessly. The acquisition and process of temperature information is a common problem in the information acquisition field and has wide application. ARM7 development board, DS18B20 the temperature sensor and nRF905 the wireless module are used to build the hardware foundation for wireless acquisition system in this project. As a control unit, ARM7 controls the working status of DS18B20 and nRF905 the wireless module in order to control the whole system. DS18B20 collects on-site temperature and transmits the temperature to the ARM7 for processing. And nRF905 will transmit the temperature out by using 433MHz radio frequency band. In the system, software design is based on the ARM development environment ADS1.2, and online simulation debugging through Jtag port . This paper introduces the overall system solution design, hardware design and software design. Eventually the whole system will achieve the result of on-site temperature acquisition, wireless transmission and real-time display on the computer.

Key words:Wireless Acquisition  ARM7  DS18B20  nRF905
 
目  錄

摘要 I
Abstract II
緒論 1
1  系統(tǒng)設(shè)計(jì)方案 3
1.1  系統(tǒng)研究 3
1.2  系統(tǒng)整體方案 3
1.2.1  控制核心 3
1.2.2  溫度采集 4
1.2.3  無(wú)線(xiàn)收發(fā) 4
2  硬件設(shè)計(jì) 5
2.1  溫度采集模塊設(shè)計(jì) 5
2.2  無(wú)線(xiàn)收發(fā)模塊設(shè)計(jì) 6
3  軟件設(shè)計(jì) 9
3.1  系統(tǒng)軟件設(shè)計(jì)整體思路 9
3.2  S3C44B0初始化 9
3.3  溫度采集子程序設(shè)計(jì) 10
3.3.1  DS18B20復(fù)位函數(shù) 10
3.3.2  測(cè)量溫度函數(shù) 11
3.3.3  讀取溫度函數(shù) 11
3.4  無(wú)線(xiàn)收發(fā)子程序設(shè)計(jì) 12
3.4.1  初始化nRF905函數(shù) 13
3.4.2  SPI讀寫(xiě)操作函數(shù) 13
3.4.3  配置nRF905函數(shù) 15
3.4.4  發(fā)送數(shù)據(jù)函數(shù) 16
3.4.5  接收數(shù)據(jù)函數(shù) 17
3.5  系統(tǒng)調(diào)試 18
3.6  結(jié)果分析 19
結(jié)論 20
致謝 21
參考文獻(xiàn) 22
附錄一S3C44B0核心板原理圖 23