【正文】 .............................................................. III ABSTRACT ............................................................. IV 第一章 緒論 ........................................................... 1 研究背景和意義 ................................................. 1 論文的研究內(nèi)容 ................................................. 4 內(nèi)容安排 ....................................................... 4 第二章 ZIGBEE 協(xié)議分析 ................................................. 6 ZIGBEE協(xié)議框架 ................................................... 6 ZIGBEE協(xié)議優(yōu)缺點和應(yīng)用前景 ....................................... 8 ZigBee 協(xié)議的優(yōu)點 ............................................ 9 ZigBee 協(xié)議存在的問題及解決方案 .............................. 9 ZigBee 協(xié)議應(yīng)用前景 ......................................... 10 2． 3 基于 ZIGBEE協(xié)議的芯片 ........................................... 10 第三章 基于 ZIGBEE 協(xié)議的硬件系統(tǒng)的設(shè)計及實現(xiàn) ......................... 14 STC89C58RD+單片機概述 ........................................... 14 開發(fā)板的各個組成部分原理圖以及功能 .............................. 15 單片機最小系統(tǒng)組成電路 ...................................... 15 串行口電平轉(zhuǎn)換部分 .......................................... 16 LED 部分 .................................................... 17 開發(fā)板和無線數(shù)據(jù)傳輸模塊接口部分 ............................ 17 鍵盤部分 .................................................... 18 無線數(shù)據(jù)傳輸模塊 ................................................ 19 無線數(shù)據(jù)傳輸模塊和開發(fā)板的 PCB 圖設(shè)計 ............................ 20 開發(fā)板的 PCB 圖 ................................................ 20 無線數(shù)據(jù)傳輸模塊的 PCB 圖 ...................................... 22 第四章 硬件驅(qū)動程序和串行口調(diào)試工具 .................................. 24 硬件驅(qū)動程序 .................................................... 24 主機端硬件驅(qū)動程序 .......................................... 24 移動端驅(qū)動程序 .............................................. 28 串行口調(diào)試工具 .................................................. 28 II 串行通信的基本原理 .......................................... 28 程序設(shè)計原理 ................................................ 30 第五章 總結(jié)與展望 .................................................... 37 全文總結(jié) ........................................................ 37 研究展望 ........................................................ 38 致 謝 ............................................................... 39 參考文獻 ............................................................. 40 附錄 ................................................................. 41 III 摘 要 隨著人民生活水平 的提高 和生活方式的轉(zhuǎn)變，餐飲業(yè)具有巨大的投資市場，被稱為中國的黃 金產(chǎn)業(yè)。 無線電子點菜系統(tǒng)是無線通信技術(shù)的典型應(yīng)用，把無線技術(shù)用于餐飲業(yè)將會極大提高餐館的工作效率和服務(wù)質(zhì)量。 論文給出了無線電子點菜系統(tǒng)的完整的硬件平臺的設(shè)計和實現(xiàn)方案。整個系統(tǒng)有主機端和移動端兩部分組成，無線通信的雙方依托一定的硬件平臺，按照約定好的協(xié)議來實現(xiàn)數(shù)據(jù)交換。設(shè)計的硬件平臺時，首先詳細介紹了平臺將要用到的一些芯片，然后使用 Protel 99 SE 設(shè)計出了系統(tǒng)的原理圖和 PCB(Print Circuit Broad,印刷電路板 )圖 ；在設(shè)計的硬件平臺的基礎(chǔ)上，依據(jù)所用芯片的編程原則，在 Windows 環(huán)境下，以 C51 語言為編程語言，開發(fā)出了無線通信系統(tǒng)的驅(qū)動程序來實現(xiàn)雙方約定的通信協(xié)議。文中還附帶簡要介紹了用到的軟件開發(fā)工具，以及系統(tǒng)的局限性，并提出了進一步改進的方案。 為了使整個系統(tǒng)更加完善，用 Visual C++ 開發(fā)了串口調(diào)試工具，實現(xiàn)了將遠端數(shù)據(jù)發(fā)送到計算機并以窗口形式顯示和通過窗口形式將計算機上的數(shù)據(jù)發(fā)送到遠端，基本達到了論文的設(shè)計目的。 關(guān)鍵詞 無線通信， ZigBee，單片機， nRF2401 IV Abstract Along with the enhancement of the level of the people’s lives and the transformation of the lifestyle, the dining industry which is called gold industry in China has the huge investment market. The wireless electronic ordering food system is the typical use of the technology of wireless munication. Using the technology of wireless munication in the dining industry will largely improve the working efficiency and the grade of service. The present paper brings up the plan of the hardware design of the the wireless electronic ordering food system and how to realize. The overall system is made up of two parts, one is the main end and the other is the mobile end. Both sides of wireless correspondence depend on certain hardware platforms. They exchange data according to the protocol which both sides have agreed on before, and the data is transformed in specific frame form. When designing the hardware platform, first analyzes the CMOS chips that will be used in the system. Then, the paper uses Protel 99 SE to design the principle picture and the PCB picture of the system. In this foundation, according to the programming rules of the CMOS chips used in the system, the paper exploits the driving pro