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平板式汽車制動智能檢測系統(tǒng)的開發(fā)2
摘 要
汽車行使安全問題是日益引起國家、社會關注的重大社會經濟問題之1。我國的汽車保有量正在急劇上升，今后若干年中汽車行駛安全問題將會更加尖銳。而汽車制動系統(tǒng)故障又是引發(fā)行車事故的主要原因。隨著汽車數(shù)量的增多和好行駛速度的提高，汽車制動性對保障交通安全尤為重要。為減少道路交通事故，我國有關法規(guī)明確規(guī)定對在用汽車必須經過定期檢測合格后才允許上路行駛，在汽車定期檢測中，制動性能被作為判定車輛安全技術狀況的主要因素。
因此，利用現(xiàn)代檢測技術和先進的技術產品，盡快研制出具有現(xiàn)代先進水平的汽車制動性能檢測系統(tǒng)對保障交通安全、保護人民生命財產安全具有重要的意義。
本文介紹了我們設計的基于PC機和單片機技術的汽車制動性能檢測系統(tǒng)設計。我們系統(tǒng)地研究了汽車制動系統(tǒng)的設計理論、設計方法，依據(jù)汽車制動性能檢測相關法規(guī)，研究并開發(fā)出平板式汽車制動智能檢測系統(tǒng)。該系統(tǒng)采用分布式管理方式，主控機采用PC機，數(shù)據(jù)采集系統(tǒng)采用AT89C51為中央處理器的單片機系統(tǒng)，主控機與數(shù)據(jù)采集系統(tǒng)之間通信聯(lián)系采用RS-232串行口進行通信。
文中詳細討論了采用這些技術設計的汽車制動性能檢測系統(tǒng)的設計方法。包括檢測系統(tǒng)的總體設備配置、硬件布局、工位分配、接口驅動等硬件設計方法；通訊系統(tǒng)設計、控制軟件結構、人機界面等軟件設計。系統(tǒng)軟件共分PC機與單片機兩大塊，其中：單片機部分軟件采用MCS-51匯編語言編寫，PC部分采用Microsoft公司的 Microsoft Visual Basic 6.0應用程序開發(fā)工具設計的。針對檢測數(shù)據(jù)的實時存儲要求，文中也討論了數(shù)據(jù)庫的設計以及檢測軟件與數(shù)據(jù)庫的接口設計。
關鍵詞：汽車；制動；檢測；PC機；單片機；數(shù)據(jù)庫
Abstract
Safety of automobile driving is an increasingly serious economic problem that society puts emphasis on. The present quantity of automobile in our country is increasing rapidly, which makes safety of automobile driving an even more urgent problem. According to statistic, among the traffic accidents caused by automobile breakdown, braking breakdown causes most. Automobile braking performance has become more important while the present quantity and the speed of automobile are increasing. In order to reduce traffic accidents, some rules of law have definitely stated that automobiles must get regular test before their driving. And during the regular test automotive braking performance is one of the key factors that determine automobile safety technical condition.
Therefore, it is of great importance to design and research advanced automobile brake performance test system by the application of technical of the research of modern test system and advanced product.
This article introduces us to an test system design on automobile brake performance inspection based on PC and SCM （Single Chip Micyoco）technology. Systematical study about the theory and methods of design automobile’s brake system. According to the correlative statute of the automobile’s brake performance tests, we developed a type of system software for the intelligent tabulate automobile’s brake intellective test system. The system adopts distributive management, PC is used as the master-control, and data collection system adopts AT89C51 as the CPU of the SCM. Using RS-232 to implement the communication between master-control and data collection system.
Including hardware design methods such as the equipment of the whole test system, the layout of hardware, sections allocation, signal amplifier. Software design methods such as communication system, control software architecture, the interface between people and machines, etc. In the system, the part of SCM is compiled with the language of MCS-51, and the software for master-control is compiled with the application tool, Microsoft Visual Basic 6.0 of Microsoft Company. According to the real-time save requirement of data, the design of database and the interface design of the database and the inspection software are also discussed.
Key words: automobile; brake; test; PC; SCM; database
包括：畢業(yè)設計圖紙、畢業(yè)論文、開題報告、任務書、外文翻譯、實習報告
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