智能汽車行駛記錄儀設(shè)計

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目 錄
第一章 系統(tǒng)總體設(shè)計方案·······························3
1.1系統(tǒng)總體框··············································9
1.2各模塊功能需求··········································9
第二章 硬件電路設(shè)計···································12
2.1電源模塊設(shè)計···········································12
2.2信號采集模塊···········································14
2.2.1車速信號采集·········································14
2.2.2開關(guān)量···············································15
2.3單片機(jī)模塊·············································16
2.3.1單片機(jī)的選型·········································16
2.3.2外部晶振電路設(shè)計·····································16
2.3.3復(fù)位電路設(shè)計·········································17
2.4鍵盤模塊···············································17
2.5存儲器模塊·············································18
2.6駕駛員身份識別·········································20
2.7傳輸模塊···············································21
2.7.1USB接口··············································21
2.7.2RS232接口············································22
2.8顯示模塊···············································23
2.9時鐘模塊···············································25
2.10熱敏打印機(jī)············································26
2.11報警模塊··············································27
結(jié)論·················································28
致謝·················································29
參考文獻(xiàn)·············································30


摘要 汽車行駛記錄儀是對車輛行駛速度、時間、里程以及有關(guān)車輛行駛的其他狀態(tài)信息進(jìn)行記錄、存儲并可通過接口實現(xiàn)數(shù)據(jù)輸出的數(shù)字式電子記錄裝置。
記錄儀對約束駕駛?cè)藛T的疲勞駕駛、超速等不良駕駛行為，對預(yù)防道路交通事故的發(fā)生局域重要作用。記錄儀便于道路運輸企業(yè)及交通管理部門的科學(xué)管理，可以為交通事故的分析和公正處理提供科學(xué)、權(quán)威的原始數(shù)據(jù)。
介紹記錄儀的研究背景、意義和國內(nèi)外發(fā)展現(xiàn)狀，敘述記錄儀的定義、相關(guān)術(shù)語和組成等。
本文記錄儀的主機(jī)位主要研究對象。本文的主要內(nèi)容包括以下內(nèi)容：
1）供電模塊2）單片機(jī)系統(tǒng)3）信號采集模塊4)實時時鐘模塊5)數(shù)據(jù)儲存模塊6)顯示和鍵盤模塊
詳細(xì)論述駕駛員身份識別、實時時鐘、車速、里程等數(shù)據(jù)采集單元的具體實現(xiàn)方法。闡述數(shù)據(jù)存儲格式、液晶顯示器和熱敏打印機(jī)的設(shè)計。
關(guān)鍵詞 汽車行駛記錄儀 MC9S12XS128 閃存存儲器 熱敏打印機(jī)


Intelligent vehicle traveling data recorder
Abstract Recorder on constraint driver fatigue driving, speeding and other bad driving behavior, the important role of local prevention of road traffic accidents. Recorder for scientific management of road transportation enterprises and traffic management departments, can process the raw data to provide scientific, authoritative and impartial analysis of traffic accidents.
The recorder research background, significance and current development status, describes the definition of related terms and recorder, etc..
In this paper, the main research object of the host recorder. The main contents of this paper include the following contents:
1) power supply module 2) microcomputer system 3) signal acquisition module 4) real-time clock module 5) data storage module 6) display and keyboard module
The concrete implementation method in detail the driver identification, real-time clock, speed, mileage and other data acquisition unit. Design the format of data storage, liquid crystal display and the thermal printer.
Key words Vehicle traveling data recorder MC9S12XS128 Flash memory Thermal printer