單片機(jī)液體點(diǎn)滴速度控制系統(tǒng)設(shè)計(jì)

電子機(jī)電論文編號(hào):JD1046   論文字?jǐn)?shù):25834,頁數(shù):56  有開題報(bào)告，任務(wù)書，文獻(xiàn)綜述

目 錄
 
摘    要 ……………………………………………………………………………………Ⅰ
Abstract ……………………………………………………………………………………Ⅱ

第1章  緒   論

1.1 單片機(jī)液體點(diǎn)滴速度控制的開發(fā)背景…………………………………………………1
1.2  單片機(jī)在液體點(diǎn)滴研究的現(xiàn)狀………………………………………………………1
1.3  今后的發(fā)展方向及意義………………………………………………………………2

第2章  系統(tǒng)總體方案的確定

2.1  系統(tǒng)設(shè)計(jì)要求…………………………………………………………………………4
2.2  系統(tǒng)總體方案設(shè)計(jì)……………………………………………………………………4
2.3  各電路設(shè)計(jì)與器件選擇………………………………………………………………5
  2.3.1 單片機(jī)的選擇………………………………………………………………………5
 2.3.2 點(diǎn)滴速度檢測(cè)電路設(shè)計(jì)……………………………………………………………6
 2.3.3步進(jìn)電機(jī)……………………………………………………………………………7
 2.3.4鍵盤/顯示電路設(shè)計(jì)…………………………………………………………………7
 2.3.5液位檢測(cè)電路設(shè)計(jì)…………………………………………………………………8
 2.3.6報(bào)警電路設(shè)計(jì)………………………………………………………………………9
 2.3.7 通訊接口模塊的設(shè)計(jì)………………………………………………………………9
  2.3.8  主站的設(shè)計(jì)……………………………………………………………………10

第3章  硬件設(shè)計(jì)

3.1 系統(tǒng)硬件設(shè)計(jì)…………………………………………………………………………12
3.2主站及通訊網(wǎng)絡(luò)的設(shè)計(jì)………………………………………………………………12
3.3 點(diǎn)滴速度檢測(cè)電路……………………………………………………………………13
3.4步進(jìn)電機(jī)的驅(qū)動(dòng)電路…………………………………………………………………15
3.5鍵盤/顯示電路…………………………………………………………………………16
3.6液位檢測(cè)電路…………………………………………………………………………17
3.7報(bào)警電路………………………………………………………………………………18
3.8通訊接口電路…………………………………………………………………………19

第4章  軟件設(shè)計(jì)

4.1主機(jī)軟件設(shè)計(jì)…………………………………………………………………………20
  4.1.1初始化………………………………………………………………………………21
  4.1.2巡回檢測(cè)……………………………………………………………………………21
  4.1.3定點(diǎn)檢測(cè)……………………………………………………………………………23
  4.1.4退出系統(tǒng)……………………………………………………………………………23
4.2 從機(jī)軟件設(shè)計(jì)…………………………………………………………………………23
  4.2.1存儲(chǔ)空間分配和I/O口說明……………………………………………………24
  4.2.2滴速判斷、滴速控制及報(bào)警………………………………………………………25
  4.2.3鍵盤及顯示程序……………………………………………………………………26
  4.2.4與主站通訊………………………………………………………………………27

結(jié)束語 ……………………………………………………………………………………29

參考文獻(xiàn) …………………………………………………………………………………30

致謝 ………………………………………………………………………………………31

附錄 A 從站程序……………………………………………………………………………32
附錄 B 主站程序……………………………………………………………………………42
附錄 C 系統(tǒng)從站電路總圖…………………………………………………………………50

摘    要：近年來隨著科技的飛速發(fā)展，單片機(jī)的應(yīng)用正在不斷地走向深入，同時(shí)帶動(dòng)傳統(tǒng)控制檢測(cè)日新月益更新。在實(shí)時(shí)檢測(cè)和自動(dòng)控制的單片機(jī)應(yīng)用系統(tǒng)中，單片機(jī)往往是作為一個(gè)核心部件來使用，僅單片機(jī)方面知識(shí)是不夠的，還應(yīng)根據(jù)具體硬件結(jié)構(gòu)，以及針對(duì)具體應(yīng)用對(duì)象特點(diǎn)的軟件結(jié)合，以作完善。
 本設(shè)計(jì)介紹了一種智能輸液速度測(cè)控系統(tǒng)。該系統(tǒng)主站采用586PC機(jī)作為主控制器，以AT89C51單片機(jī)作為智能節(jié)點(diǎn)控制器，構(gòu)成一個(gè)分布式的主從局域控制網(wǎng)。采用光電傳感原理實(shí)現(xiàn)對(duì)液體點(diǎn)滴速度的測(cè)量和液位檢測(cè)，用步進(jìn)電機(jī)拖動(dòng)，控制儲(chǔ)液瓶的高度，實(shí)現(xiàn)點(diǎn)滴速度的自動(dòng)調(diào)節(jié)，使點(diǎn)滴輸液變得更加方便和安全。
 從站采用單片機(jī)AT89C51作為核心器件來實(shí)現(xiàn)液體滴速的檢測(cè)、滴速異常報(bào)警、滴速的設(shè)定及控制等，其軟件采用MCS-51匯編語言實(shí)現(xiàn)。
 主站與從站之間的通信采用RS-485總線連接，有效地實(shí)現(xiàn)了主從式網(wǎng)絡(luò)設(shè)計(jì)。

關(guān) 鍵 詞：速度檢測(cè) 自動(dòng)調(diào)節(jié) 輸液監(jiān)控 串行通信

The Single-Chip Controlling System
Transfusion Speed in the Therapy

Abstract: With the development at full speed of science and technology in recent years, the application of the one-chip computer is being moved towards deepenning constantly, drive tradition is it measure crescent benefit to upgrade day to control at the same time. In measuring in real time and automatically controlled one-chip computer application system, the one-chip computer often uses as a key part, only one-chip computer respect knowledge is not enough, should also follow the concrete hardware structure , and direct against and use the software of target's characteristic to combine concretly, in order to do perfectly.
This design introduces an intelligence speed control system for transfusion. We use the 586 PC as the home site controller， AT89C51 single-chip by way of node controller, composes a distributed local control network. The system could detect the drops and the location of liquid through the transfer line with optic-electric detects technique. Control the high of bottle with an electromotor, realization transfusion speed automatic adjust, made transfusion become more convenience and safety.
 The subordinate site use AT89C51 Single-chip controller as the core instrument to realize the detection of the transfusion current velocity, the abnormal current velocity alarming, the setup and control of the current velocity, etc. This software is built by MCS-51 assembly language programming.
 We use the RS-485 bus unit to connect the communication of the home site and the subordinate site, this can greatly realize the home site and subordinate site network design.

Key words: Speed measure; Self-Correcting ; Transfusion control ; Serial communication.