液體點滴速度監(jiān)控裝置


摘要：為了解決人工監(jiān)測輸液治療所存在的問題，緩解醫(yī)護(hù)人員的工作壓力，設(shè)計了一種基于光電監(jiān)測技術(shù)、串口通信技術(shù)的監(jiān)測系統(tǒng)。本液體點滴速度監(jiān)控裝置采用TI公司的MSP430F2274單片機作為核心控制芯片，由液晶顯示模塊、電機驅(qū)動模塊、傳感器模塊、電源模塊組成。實現(xiàn)點滴速度控制、液晶顯示點滴速度、點滴測速等功能。在機械結(jié)構(gòu)上，用一個步進(jìn)電機，再外加一個定滑輪，來控制滴斗與受液瓶之間的高度，以達(dá)到控制液滴的速度目的。采用PWM 驅(qū)動芯片控制電機，反射式紅外傳感器檢測液滴滴落的速度，LCD128*64顯示點滴的速度?；诳煽康挠布O(shè)計和穩(wěn)定的軟件算法，實現(xiàn)題目要求。而且附加實現(xiàn)主從機通信等擴展功能。

關(guān)鍵詞：MSP430F2274；串口通信；PWM電機驅(qū)動；光電傳感器

Abstract: In order to address the treatment of intraocular fluid by monitoring the problems and ease the work pressure of health care professionals to design a photovoltaic-based monitoring techniques, serial communication technology of the monitoring system. The speed of the liquid drip monitoring device MSP430F2274 using TI's single-chip control as a core chips, by the liquid crystal display module, motor driver module, sensor module, power module. To achieve speed control drip, drip liquid crystal display speed, bit by bit gun functions. In the mechanical structure, the use of a stepper motor, and then plus a fixed pulley, to control the drip bucket with the bottle between the liquid height, in order to achieve the purpose of controlling the speed of droplets. PWM driver chip used to control motors, reflective infrared sensors detect the speed of droplets drip, LCD128 * 64 shows that the rate of drip. Hardware design based on a reliable and stable software algorithms, the requirements to achieve the title. And the additional achievement of master-slave communication, such as extensions.

Keywords: MSP430F2274; serial communication; PWM motor drive; photoelectric sensor

目   錄
1．系統(tǒng)設(shè)計 4
1.1 設(shè)計要求 4
1.1.1 任務(wù) 4
1.1.2 要求 4
1.1.3 說明 5
1.2 總體設(shè)計方案 5
1.2.1 設(shè)計思路 5
1.2.2 方案選擇與論證 7
1.2.3 系統(tǒng)組成 10
2．系統(tǒng)的硬件電路設(shè)計與實現(xiàn) 11
2.1 控制電路的設(shè)計 11
2.2 電機驅(qū)動電路的設(shè)計 12
2.3 顯示模塊的設(shè)計 13
2.4 液體點滴監(jiān)控電路的設(shè)計 14
2.5 電源模塊的設(shè)計 15
3．系統(tǒng)軟件設(shè)計 15
3.1系統(tǒng)主程序 16
3.2液滴速度監(jiān)控子程序 16
3.3主從站通信程序 17
3.4液晶顯示子程序 17
3.5 編程感想 18
4 系統(tǒng)測試 18
4.1 測試使用的儀器 18
4.2 指標(biāo)測試和測試結(jié)果 19
4.2.1液滴檢測部分測試 19
4.2.2調(diào)整時間的測試 19
4.2.3誤差分析 20
4.2.4系統(tǒng)實現(xiàn)的功能 20
5．結(jié)論 20
參考文獻(xiàn) 20
附錄1 使用說明 21
附錄2 主要元器件清單 21