【正文】 XXX 大學 畢業(yè)設計 1 前言 ............................................................................................................................................ 4 1 總體方案設計 ...................................................................................................................... 5 方案論證 ................................................................................................................... 5 傳感器 ............................................................................................................ 5 主控部分 ........................................................................................................ 5 2 硬件電路的設計 .................................................................................................................. 6 電源電路 ................................................................................................................... 6 溫度采集電路 ........................................................................................................... 7 DS18B20 簡介 ................................................................................................. 7 電路設計 ........................................................................................................ 9 無線傳輸電路模塊 ...................................................................................... 10 3 無線發(fā)送與接收電路 ........................................................................................................ 11 無線發(fā)送電路 ......................................................................................................... 11 無線接收模塊 ......................................................................................................... 11 4 顯示電路 ............................................................................................................................ 12 字符型液晶顯示模塊 ............................................................................................. 12 字符型液晶顯示模塊引腳 ..................................................................................... 13 字符型液晶顯示模塊內(nèi)部結構 ............................................................................. 13 5 單片機 AT89S52 ................................................................................................................. 14 AT89S52 簡介 .......................................................................................................... 14 AT89S52 引腳說明 .................................................................................................. 15 6 軟件設計 ............................................................................................................................ 17 系統(tǒng)概述 ................................................................................................................. 17 程序設計流程圖 ..................................................................................................... 17 溫度傳感器多點數(shù)據(jù)采集 ..................................................................................... 18 7 調(diào)試及結果 ........................................................................................................................ 18 測試環(huán)境及工具 ..................................................................................................... 18 測試方法 ................................................................................................................. 18 測試結果分析 ......................................................................................................... 18 8 總結 .................................................................................................................................... 19 附錄 1： 電路原理總圖 ......................................................................................................... 20 附錄 2： 發(fā)射部分主程序 ..................................................................................................... 20 附錄 3： 接收部分主程序 ..................................................................................................... 26 參考文獻 .................................................................................................................................. 31 XXX 大學 畢業(yè)設計 2 無線數(shù)據(jù)采集系統(tǒng)的設計與實現(xiàn) 學生： XX 指導教師： XX 內(nèi)容摘要 ： 由于數(shù)據(jù)采集系統(tǒng)的應用范圍越來越寬、所涉及到的測量信號和信號源的類型越來越多、對測量的要求也越來越高，國內(nèi)現(xiàn)在已有不少數(shù)據(jù)測量和 采集的系統(tǒng)，但很多系統(tǒng)存在功能單一、采集通道少、采集速率低、操作復雜，并且對測試環(huán)境要求較高等問題。人們需要一種應用范圍廣、性價比高的數(shù)據(jù)采集系統(tǒng)。 在分析了不同類型的單片機的特點及單片機與 PC 機通信技術的基礎上，設計了單片機控制的采集系統(tǒng)，并通過串口通信實現(xiàn)單片機與 P(：機之間的通信，實現(xiàn)數(shù)據(jù)的傳送并將數(shù)據(jù)在 PC機上顯示及存儲，完成單機的多通道數(shù)據(jù)采集系統(tǒng)的設計及實現(xiàn)。 基于單片機的多通道數(shù)據(jù)采集系統(tǒng)是由將來自傳感器的信號通過放大、線性化、濾波、同步采樣保持等處理后，輸入 A／ D 轉換為數(shù)字信號后由單片機采集 ，然后利用單片機與 PC 機的通信將數(shù)據(jù)送到 PC 機進行數(shù)據(jù)的存儲、后期處理與顯示，實現(xiàn)了數(shù)據(jù)處理功能強大、顯示直觀、界面友好、性價比高、應用廣泛的特點，可廣泛應用于工業(yè)控制、儀器、儀表、機電一體化、智能家居等諸多領域。 關鍵詞： 多通道 數(shù)據(jù)采集 單片機 XXX 大學 畢業(yè)設計 3 Design and implementation of wireless data acquisition system Abstract: since the wide range of data acquisition system, which involves the measurement signal and the type of signal source more and more, Surveyors are increasingly high requirements of the domestic now have a lot of data acquisition and measurement system But there are many single function systems, collecting less access, low collection rate, plicated operations, and the demands of the test environment and other issues． It requires abroad scope of application, high reliability and lowcost data acquisition system． Based on the analysis of the characteristics of different types of SCM and SCM and PC munication technology, SCM control of the collection system designed and adopted MCU serial munication between PC and munications, Data transmission and display of data stored on the PC． Single pleted the multichannel data acquisition system design and implementation. Based on SCM′ s multichannel data acquisition system is adopted will e from the sensor si