電動(dòng)機(jī)運(yùn)行狀態(tài)檢測(cè)系統(tǒng)的設(shè)計(jì)
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電子電工畢業(yè)論文(設(shè)計(jì)) |
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電氣自動(dòng)化 |
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電機(jī)|串口通訊 |
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2013-07-11 11:44:00 |
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畢業(yè)論文 電動(dòng)機(jī)運(yùn)行狀態(tài)檢測(cè)系統(tǒng)的設(shè)計(jì),共32頁,15119字。
摘 要:在電力系統(tǒng)中,電動(dòng)機(jī)運(yùn)行狀態(tài)直接影響到負(fù)載設(shè)備的穩(wěn)定運(yùn)行。因此,利用計(jì)算機(jī)實(shí)時(shí)監(jiān)控電動(dòng)機(jī)的運(yùn)行狀態(tài),準(zhǔn)確地讀取扭矩參量,并能根據(jù)需要控制電動(dòng)機(jī),是勢(shì)在必行的。本文的主要目的是設(shè)計(jì)一個(gè)扭矩檢測(cè)系統(tǒng),首先介紹了研制背景,指出其重要意義。接著提出了電動(dòng)機(jī)扭矩檢測(cè)的技術(shù)指標(biāo)和要求,主要包括A/D轉(zhuǎn)換電路對(duì)8位模擬電路開關(guān)量進(jìn)行采集,串行通訊等幾方面內(nèi)容。然后提出了本文的主要工作內(nèi)容,其內(nèi)容包括:原理樣機(jī)的電路設(shè)計(jì),單片機(jī)與上位機(jī)利用RS232進(jìn)行串口通信及其抗干擾技術(shù),單片機(jī)程序設(shè)計(jì)及軟件的去干擾問題,以及整個(gè)系統(tǒng)進(jìn)行調(diào)試。
電動(dòng)機(jī)檢測(cè)系統(tǒng)是由單片機(jī)采集系統(tǒng)和計(jì)算機(jī)的控制檢測(cè)系統(tǒng)兩個(gè)子系統(tǒng)所組成。單片機(jī)采集系統(tǒng)完成對(duì)電動(dòng)機(jī)扭矩信息量的采集,本文詳細(xì)介紹了電路設(shè)計(jì),系統(tǒng)的核心器件為89C51,其外圍電路包括電源電路、模擬信號(hào)采集電路、A/D轉(zhuǎn)換電路、時(shí)鐘發(fā)生電路、通訊電路等,本論文給出了每個(gè)電路的電路設(shè)計(jì)圖。并提出了在電路設(shè)計(jì)中應(yīng)注意的問題。本文對(duì)單片機(jī)匯編程序軟件設(shè)計(jì)進(jìn)行了詳細(xì)分析,匯編程序主要由數(shù)據(jù)采集、通訊幾部分組成,給出了程序設(shè)計(jì)流程圖,討論了編程方法。
采集到的數(shù)據(jù)通過RS232送到計(jì)算機(jī)的監(jiān)控檢測(cè)系統(tǒng)進(jìn)行處理。本論文利用Visual Basic開發(fā)出監(jiān)控檢測(cè)系統(tǒng)軟件來對(duì)采集到的數(shù)據(jù)進(jìn)行處理。監(jiān)控檢測(cè)系統(tǒng)軟件主要解決以下三個(gè)問題:(1)與單片機(jī)采集系統(tǒng)的通訊;(2)對(duì)送過來的采集數(shù)據(jù)進(jìn)行處理;(3)對(duì)采集來的數(shù)據(jù)進(jìn)行操作及顯示。本文介紹了VB語言的優(yōu)點(diǎn),給出了控制程序界面圖,討論了與單片機(jī)匯編程序的通訊協(xié)議。
關(guān)鍵詞:電機(jī) 轉(zhuǎn)矩 串口通訊
The desing of testing system of engine running state
Abstract:In the electrical system, the running of electrical engines has an immediate influence on the state of the load equipment. Therefore, it is important to monitor running of the engine, obtain the torque parameter accurately and control the engine whenever necessary with help of computers. This paper intends to design a torque testing system. Firstly, the background for the design is introduced and its significance is highlighted. Secondly, the technical standards and requirements for torque testing of the engine are proposed, including the data value acquisition of 8-digit analog circuit by A/D converting circuit as well as serial communication. Finally, this paper discusses the circuit design of principle prototype, communication and anti-interference techniques between microcontroller and host computer by means of RS232, the microcontroller programming and interference-free as well as the testing of the overall system.
The acquired data are processed by the monitoring system of computer through RS232. This paper employs Visual Basic to develop the monitoring and testing system in order to process the acquired data. So the monitoring and testing system will focus on the following three problems: (1) the communication with the microcontroller acquisition system; (2) the processing of the acquired data; (3) the operation and display of the acquired data. This paper also introduces the advantages of VB, presents the controlling program interface and discusses the communicational protocols for the microcontroller assembly program.
Key words: engine torque serial communication
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