智能汽車(chē)行駛記錄儀設(shè)計(jì)

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目 錄
第一章 系統(tǒng)總體設(shè)計(jì)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(jì)···································12
2.1電源模塊設(shè)計(jì)···········································12
2.2信號(hào)采集模塊···········································14
2.2.1車(chē)速信號(hào)采集·········································14
2.2.2開(kāi)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(jì)·····································16
2.3.3復(fù)位電路設(shè)計(jì)·········································17
2.4鍵盤(pán)模塊···············································17
2.5存儲(chǔ)器模塊·············································18
2.6駕駛員身份識(shí)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(shí)鐘模塊···············································25
2.10熱敏打印機(jī)············································26
2.11報(bào)警模塊··············································27
結(jié)論·················································28
致謝·················································29
參考文獻(xiàn)·············································30


摘要 汽車(chē)行駛記錄儀是對(duì)車(chē)輛行駛速度、時(shí)間、里程以及有關(guān)車(chē)輛行駛的其他狀態(tài)信息進(jìn)行記錄、存儲(chǔ)并可通過(guò)接口實(shí)現(xiàn)數(shù)據(jù)輸出的數(shù)字式電子記錄裝置。
記錄儀對(duì)約束駕駛?cè)藛T的疲勞駕駛、超速等不良駕駛行為，對(duì)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(yùn)輸企業(yè)及交通管理部門(mén)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(guó)內(nèi)外發(fā)展現(xiàn)狀，敘述記錄儀的定義、相關(guān)術(shù)語(yǔ)和組成等。
本文記錄儀的主機(jī)位主要研究對(duì)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(hào)采集模塊4)實(shí)時(shí)時(shí)鐘模塊5)數(shù)據(jù)儲(chǔ)存模塊6)顯示和鍵盤(pán)模塊
詳細(xì)論述駕駛員身份識(shí)別、實(shí)時(shí)時(shí)鐘、車(chē)速、里程等數(shù)據(jù)采集單元的具體實(shí)現(xiàn)方法。闡述數(shù)據(jù)存儲(chǔ)格式、液晶顯示器和熱敏打印機(jī)的設(shè)計(jì)。
關(guān)鍵詞 汽車(chē)行駛記錄儀 MC9S12XS128 閃存存儲(chǔ)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