【正文】 大 連 理 工 大 學(xué) 本 科 畢 業(yè) 設(shè) 計(jì)（論 文） 基于 nRF2401 的無線遠(yuǎn)程監(jiān)控系統(tǒng) Remote Wireless Monitoring System Based on nRF2401 學(xué) 院（系）： 電氣工程 與應(yīng)用電子技術(shù) 系 專 業(yè)： 電氣工程及其自動化 學(xué) 生 姓 名： 董琳瑯 學(xué) 號： 20xx85123 指 導(dǎo) 教 師： 劉蘊(yùn)紅 評 閱 教 師： 牟憲民 完 成 日 期： 大連理工大學(xué) Dalian University of Technology 基于 nRF2401的遠(yuǎn)程無線監(jiān)控系統(tǒng) I 摘 要 近年來隨著科技的飛速發(fā)展， 遠(yuǎn)程無線 監(jiān)控系統(tǒng)在現(xiàn)代生活中 不斷成熟和完善 。這個(gè)系統(tǒng)建立在無線收發(fā)模塊 PTR20xx 的基礎(chǔ)之上。它是超小型，超低功耗，高速率無線收發(fā)數(shù)傳模塊，靈敏度高，具有兩個(gè)頻道，特別滿足需要多信道工作的特殊場合，它可完成點(diǎn)對點(diǎn)傳輸?shù)臄?shù)據(jù)采集，用于工業(yè)控制 ； 數(shù)據(jù)采集 ； 遙控 ； 遙測 ； 無線抄表 ； 門禁系統(tǒng) ； 小區(qū)傳呼 ； 工業(yè)數(shù)據(jù)采集系統(tǒng) ； 小型無線數(shù)據(jù)終端 ； 無線遙控系統(tǒng) ； 水文氣象監(jiān)控 和 機(jī)器人控制中。 本文 研究的 遠(yuǎn)程無線 監(jiān)控系統(tǒng)是由 PTR20xx 的無線收發(fā)系統(tǒng)、單片機(jī) AT89S51 的下位機(jī)控制系統(tǒng)和 LabVIEW 的上位機(jī)監(jiān)控系統(tǒng)構(gòu)成的遠(yuǎn)程無線溫度 巡檢 系統(tǒng) 。 此系統(tǒng)可分為四個(gè)信息處理過程實(shí)現(xiàn)無線傳輸，首先通過 ADC0809 的模數(shù)信號的轉(zhuǎn)換，然后信號傳輸?shù)綌?shù)碼管顯示電路，同時(shí)，單片機(jī)將信號傳輸給無線傳輸模塊 PTR20xx。此片PTR20xx 再將信號無線傳輸給與電腦相連的那片 PTR20xx，最后由基于 LabVIEW 的上位機(jī)監(jiān)控系統(tǒng)進(jìn)行監(jiān)控。綜上所述，本設(shè)計(jì)系統(tǒng)提出了一種簡單，高效并且能夠被廣泛應(yīng)用的遠(yuǎn)程無線監(jiān)控體系。 關(guān)鍵詞 ： 單片機(jī)；無線；遠(yuǎn)程； LabVIEW； nRF2401 基于 nRF2401的遠(yuǎn)程無線監(jiān)控系統(tǒng) II Remote Wireless Monitor System Based on nRF2401 Abstract With the rapid development of science and technology, Remote Wireless Monitor Systems are maturing and being ever more prevalent in modern life. The Remote Wireless Monitor System presented here is based on the PTR20xx Remote Wireless Model. It is a microminiature, low power, high speed, and highly sensitive wireless dispatcher with two channels and the capability to satisfy the need for many channels operating at the same time. The system can connect to a single chip directly and perform nodetonode data collection. Remote Wireless Monitors are widely applicable with uses spanning: industry control, industry data collection, remote control, remote measurement, wireless data exchange, gate ban systems, radio transceivers, mini wireless data terminals, wireless remote control systems, weather monitors, and robot control. The Remote Wireless Monitor System presented can be conceptually divided into several ponents: the PTR20xx Remote Wireless Model, the LabVIEW software system, and the AT89S51 MCU. This system realizes wireless munication through a fourstep operation. The signal is first detected by the ADC0809. Following signal detection, the data is simultaneously forwarded to the LED display board and the AT89S51 MCU. The AT89S51 MCU acts as a control unit, passing the data to PTR20xx, which transmits the signal to the receiving party through wireless munication. This signal is then processed by the receiving party’s LabVIEW software. Together, these operations and ponents create a simple, effective, and widely applicable Remote Wireless Monitor System. Key Words: Single chip。 Wireless。 Remote。 LabVIEW。 nRF2401 基于 nRF2401的遠(yuǎn)程無線監(jiān)控系統(tǒng) III 目 錄 摘 要 ..................................................................................................................................... I Abstract ...................................................................................................................................... II 1 緒論 ......................................................................................................................................... 1 課題研究的目的和意義 .............................................................................................. 1 本課題的主要研究內(nèi)容 .............................................................................................. 1 2 現(xiàn)有無線通信系統(tǒng) ................................................................................................................. 3 無線通信技術(shù)的發(fā)展 .................................................................................................. 3 無線通信技術(shù)的種類 .................................................................................................. 6 3 遠(yuǎn)程無線溫度 巡檢 監(jiān)控系統(tǒng) ................................................................................................. 9 系統(tǒng)特點(diǎn) ...................................................................................................................... 9 系統(tǒng)功能 .................................................................................................................... 10 系統(tǒng)構(gòu)成 .................................................................................................................... 12 4 無線傳輸 ............................................................................................................................... 13 nRF2401 無線射頻收發(fā)一體芯片 ............................................................................ 13 基于 PTR20xx 無線通信數(shù)傳系統(tǒng) .......................................................................... 16 天線的設(shè)計(jì) ................................................................................................................ 20 元器件參數(shù) ................................................................................................................ 20 5 系統(tǒng)下位機(jī)的設(shè)計(jì) ............................................................................................................... 22 硬件的設(shè)計(jì) ................................................................................................................ 22 基本單元設(shè)計(jì) ......................................................................................... 22 數(shù)碼管顯示電路的設(shè)計(jì) ................................................................................. 25 溫度 信號電路的設(shè)計(jì) ..................................................................................... 26 串行接口電路的設(shè)計(jì) ..................................................................................... 28 電源電路的設(shè)計(jì) ............................................................................................. 28 軟件的設(shè)計(jì) ................................................................................................................ 29 主程序流程圖 .................