單片機控制半自動酶標儀

論文編號:ZD1205   論文字數:22006,頁數:56  附原理圖，外文翻譯，答辯PPT

摘  要
 半自動酶標儀主要用于對人體體液各種的生化指標進行檢測，為醫生確定所有病人的病情提供科學依據。目前，酶標儀已經成為醫療機構進行臨床診斷所必須的醫療儀器之一。本文以半自動酶標儀研發過程中電氣系統及針對半自動酶標儀分析所開發的應用程序軟件為主要內容，提出了完整可行的系統設計方案。
 本文先介紹了以單片機為控制核心的控制系統，酶標儀的電子系統比較復雜，輸入輸出量多，對操作的實時性要求比較嚴格。控制系統需要完成如控制步進電機的運動，以保證微面板和濾光片運動平穩性和定位的準確性；對當前樣品杯的多路模擬信號進行數據采集；實時的接收并完成應用程序軟件的控制命令等多項任務。其次，本文還介紹了軟件系統功能。
 該設計的控制性能指標完全符合半自動酶標儀的系統設計要求，在設計過程中出現的問題，希望各位老師見涼，并給予指導和幫助。
 
 
 關鍵詞：  半自動酶標儀  單片機  控制系統  數據采集系統
 
   

The monolithic integrated circuit controls the semiautomatic enzyme sign meter
Abstract
 The abstract semiautomatic enzyme sign meter mainly uses to human body's body fluid each biochemistry target carries on the examination, for doctor determined that all patient's condition provides the scientific basis. At present, the enzyme sign meter already became the Medical establishment carries on the clinical diagnosis to one of medical instruments. This article take the semiautomatic enzyme sign meter research and development process in the electrical system and the application procedure software which develops in view of the semiautomatic enzyme sign meter analysis as the primary coverage, proposed the complete feasible system design plan.
 This article introduced first take the monolithic integrated circuit as the control core's control system, the enzyme sign meter's electronic system is quite complex, the input output are many, is quite strict to the operation timely request. The control system needs to complete like the control to step-by-step electrical machinery's movement, guarantees the micro kneading board and the light filter movement stability and the localization accuracy; Carries on the data acquisition to the current sample cup's multi-channel simulated signal; The real-time receive and completes the application procedure software's control command and so on many duties. Next, this article also introduced the software system function.
 This design's control performance target meets the semiautomatic enzyme sign meter's system design requirement completely, has the problem in the design process, hoped that fellow teachers see coolly, and renders the instruction and the assistance.
 
 
Keywords   Semiautomatic Enzyme Sign Meter  M.C.U
             Control System  Data Acquisition System         

目  錄
第一章  緒論 1
第二章  方案論證 5
 2.1系統的總體結構 5
 2.2 濾波片選擇 6
 2.3 朗伯·比耳定律 6
 2.4光電檢測器的選擇 7
 2.5主控芯片的選擇 7
 2.6 模擬數字轉換系統的選擇 9
第三章 系統硬件設計 11
 3.1控制系統設計 11
 3.1.1 單片機概述 11
 3.1.2 單片機89C51 12
 3.1.3 時鐘電路 15
 3.1.4 復位電路 17
 3.2 電機控制系統 18
 3.3 數據采集系統 22
 3.3.1 前置放大電路 22
 3.3.2 A/D轉換 23
 3.4 LCD液晶顯示 26
 3.4.1 引腳功能介紹 26
 3.4.2內部結構與工作原理 27
 3.4.3應用電路 29
 3.5 鍵盤單元 29
 3.6 報警電路 31
 3.7 通信單元 32
 3.8 小結 33
第四章 軟件設計 34
結  論   36
致  謝  37
參考資料 38
附錄 A  40
附錄 B  51