【正文】 目 錄 1 緒論 .................................................................... 4 研究背景 ........................................................... 4 藍牙應用現(xiàn)狀 ....................................................... 5 研究的目的和意義 ................................................... 5 2 系統(tǒng)方案的設計 .......................................................... 6 數(shù)據(jù)采集技術 ....................................................... 6 無線數(shù)據(jù)采集模塊的構成 ............................................. 6 系統(tǒng)方案設計 ....................................................... 7 3 硬件電路的設計 ........................................................... 8 硬件元器件的選擇 ................................................... 9 溫度傳感器 LM35D 與壓力傳感器 MPS20N0040DD ....................... 9 顯示屏 LCD1602 .................................................. 10 藍牙芯片 CC2540 ................................................. 11 硬件電路的設計 .................................................... 17 電路板的調(diào)試 ...................................................... 22 發(fā)送節(jié)點的調(diào)試 .................................................. 23 接收節(jié)點的調(diào)試 .................................................. 25 4 總結和展望 ............................................................. 27 總結 .............................................................. 27 展望及今后工作的建議 .............................................. 27 致 謝 .................................................................... 28 參考文獻 ................................................................. 29 附錄 A：發(fā)送節(jié)點原理圖 .................................................... 30 附錄 B：發(fā)送節(jié)點 PCB 頂層圖 ................................................ 31 附錄 C：發(fā)送節(jié)點 PCB 底層圖 ................................................ 31 附錄 D：發(fā)送節(jié)點 PCB 圖 .................................................... 32 附錄 E：接收節(jié)點電路圖 .................................................... 33 附錄 F：接收節(jié)點 PCB 頂層圖 ................................................ 34 附錄 G：接收節(jié)點 PCB 底層圖 ................................................ 34 附錄 H：接收節(jié)點 PCB 圖 .................................................... 35 2 基于藍牙的溫度與壓力的無線監(jiān)測設計 摘 要 藍牙技術是近年來發(fā)展迅速的無線通信技術，以低成本、短距離無線連接為基礎，為便攜式電子設備和固定式電子通信環(huán)境建立一個連接。利用藍牙技術構建的無線數(shù)據(jù)采集傳輸 模塊，具有減少系統(tǒng)間的電纜連接的優(yōu)點，可以應用于構建數(shù)據(jù)采集系統(tǒng)、各種檢測的場合。因此，研究藍牙技術構建的無線數(shù)據(jù)采集傳輸系統(tǒng)具有重大的現(xiàn)實意義和應用前景。 本文首先對藍牙技術的概況、應用前景以及數(shù)據(jù)采集傳輸?shù)幕緲嫵傻茸隽撕唵蔚慕榻B，設計兩種無線數(shù)據(jù)采集傳輸方案并加以比較。此基礎上將兩者相結合，提出了一種基于藍牙芯片 CC2540 的無線數(shù)據(jù)采集傳輸系統(tǒng)的實現(xiàn)方案；完成了硬件電路的設計及電路板的制作、硬件的調(diào)試；完成巴倫電路的設計及其相關數(shù)據(jù)的計算，以及天線匹配電路的微帶線的設計。 關鍵詞 藍牙技術，無線通 信，無線傳輸 3 Based on Bluetooth Wireless Monitoring System Design of Temperature and Pressure ABSTRACT Bluetooth technology is a wireless munication technology which developed rapidly in recent years. Because the Bluetooth technology has low cost and short distance wireless connection, so it sets up a special connection for the portable electronic devices and fixed electronic munication environment. The wireless data acquisition and transmission module of Bluetooth, which can reduce the cable connections between the systems and can be used to construct a data acquisition system and a variety of detections. Therefore, the research of wireless data collection and transmission system of Bluetooth has great practical significance and application prospects. This paper made a briefly introduction of the overview, prospects of application and the basic structure of the data acquisition and transmission of Bluetooth technology at first, and then design of two kind of wireless data collection and transmission circuit and a parision. Finally pleted the following works based on the bination:put forward a implementation scheme of wireless data acquisition and transmission system based on the Bluetooth chip CC2540。pleted the design of hardware circuit and the production of the circuit board。debugged and tested the hardware and data acquisition and transmission functions of Bluetooth system； learning the balun circuit design and related calculation of data, as well as the antenna matching circuit design of microstrip line. KEYWORDS The technology of Bluetooth， Wireless Communications ， Wireless Transmission 4 1 緒論 研究背景 藍牙是一種短距離無線通信的技術規(guī)范。截止 2021 年 7 月，藍牙共有六個版本。誠然，無論 ，本身基本是可以支持 Stereo 音效的傳輸要求，但只能夠作（單工） 方式工作，加上音帶頻率響應不太足夠，并未算