【正文】 dustry 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。 Remote。 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?jī)?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(hào)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 ................................................................................................. 29 無線傳輸程序 ................................................................................................. 30 溫度 巡檢 流程圖 ............................................................................................. 31 顯示子程序流 程圖 ......................................................................................... 32 定時(shí)中斷子程序流程圖 ................................................................................. 33 6 系統(tǒng)上位機(jī)的設(shè)計(jì) ............................................................................................................... 34 基于 nRF2401的遠(yuǎn)程無線監(jiān)控系統(tǒng) IV LabVIEW 概述 .......................................................................................................... 34 LabVIEW 與單片機(jī)串行通信 .................................................................................. 34 與單片機(jī)串行通信概述 ................................................................ 34 LabVIEW 部分設(shè)計(jì) ....................................................................................... 35 單片機(jī)通信串口的部分設(shè)計(jì) ........................................................................ 38 監(jiān)控界面設(shè)計(jì) ........................................................................................................... 38 7 系統(tǒng)調(diào)試 .............................................................................................................................. 42 結(jié) 論 .................................................................................................................................. 43 參 考 文 獻(xiàn) ............................................................................................................................ 44 附錄 A 系統(tǒng)程序 ............................................................................................