为了正常的体验网站,请在浏览器设置里面开启Javascript功能!

计算机控制汽车安全语音提示系统翻译

2017-09-21 21页 doc 101KB 35阅读

用户头像

is_511210

暂无简介

举报
计算机控制汽车安全语音提示系统翻译计算机控制汽车安全语音提示系统翻译 河南科技学院2004届毕业论文 英文资料翻译 UNIT ONE: The automobile speech sound system of the computer control 1.Forewords In the last few years, the highway traffic caused development of our country very rapidly, has raised the vehicle traversal speed and circul...
计算机控制汽车安全语音提示系统翻译
计算机控制汽车安全语音提示系统翻译 河南科技学院2004届毕业论文 英文资料翻译 UNIT ONE: The automobile speech sound system of the computer control 1.Forewords In the last few years, the highway traffic caused development of our country very rapidly, has raised the vehicle traversal speed and circulation density greatly ,especially the appearance of highway has followed to come to traffic accident ,and also occurred again and again, at the same time ,caused personal casualties and economic property loss. How to reduce traffic accident have become urgent matters. Driver of carefullessness is the one of important reason that traffic accident occurs , therefore developing a set of simple reliable, can each partial conditions of automatic detection vehicle, discover unusual condition the safe system that can send the hint of speech sound in time to driver have great actual meaning. Driver of carefullessness is the one of important reason that traffic accident occurs , therefore develop a set of simple reliable, can each partial conditions of automatic detection vehicle, discover unusual condition the safe system that can send the hint of speech sound in time to driver have great actual meaning. 2.Systems design ideological basised to initiate the common factor of accident, this set of system will realize following detection function: ,. closing door , detecting whether the gate lock has beenn deducted; ,. detecting the cooling water of engine warm up; ;. detecting the oil quantity of engine machine; ,. detecting the braking oil quantity; ,. when automobile backs a car , detecting the barrier condition after the automobile; ,. the wear out condition of detection automobile brake friction flat; ,. Detecting the condition of road surface; ,. Detecting whether driver is excessive drinking. After automobile engine starts , system begins detecting, when discovering unusual condition, such as door do not close , the warm error of cooling water is the hint of speech sound high , oil quantity is below and backing a car ,the barrier is near next to the automobile , friction flat excessively wear and the coefficient of friction of road surface .the alcohol content in the little air of driver's cab error higher and so on, starting system send the hint of speech sound. In the system of speech sound adopting the ,6668 chip record systems of speech synthesis and the regenerative signal of speech sound. According to needs ,in the control of ,,,, ask to be able to export the following hint speech sounds: ,. noticing door do not close; ,. Noticing the temperature exceed; 1 河南科技学院2004届毕业论文 英文资料翻译 ;. the oil quantity of machine oil is below; ,. brake oil quantity is below; ,. care left rear obstacle; ,. care right rear obstacle; ,. Braking ineffectiveness is danger; ,. noticing the road surface than slippery; ,. wine rear driving danger. In the entire design, being economy , simple, reliable to popularize. 3.Systematic hardwares To complete the above-mentioned every detection and the export requirement of speech sound, this system adopts the hardware structure that shows as Fig.1. 传感器 语言数据存储器 电 子 控 制 器 程序存储器 语音合成电路 图1 硬件结构图 Electronic controlling machine adopts the 8031 single chip machine and the corresponding digital circuit, by it, gather the signal of each sensor , decide and control the synthetic output of speech sound as a result according to handling and calculation. Because of the 8031 single chip machine without ,,,, expand a slice of ,,,,, 2764 is as the program memory. The system of speech sound with Japanese Dong Zhi company's production ,6668 chips of speech synthesis is core, additionally adopting again a slice of ,,,,, 27,256 stock record the data of speech sound of good system in advance, managing the data in which is using 8031 , according to the various faults to take the adjust, make up , from the ,6668 output. In this design the ,6668 adopts the ,,, operating pattern and the 8031 connections ,which instruction is written in by the ,6668 ,,, interface. The ,6668 ,,,1 end and data input end 、,, end difference and 74 ,, 165 ( 8 and/string shift register ) ,, end 、,, end are linked , so ,,, with only ,,,,, of the data of 27,256 by the data bus line send into 74 , , 165 the output of speech sound that gets composition. In this design, it is for door , backing a car detection adopted the ,,, 226 dry spring flat switch sensors. The spring flat switch sensor is a kind of magnetic drive type switch, which sport partial qualities are little ,and rapid that natural frequency respond speed high and service life grows , even if in the place in which automobile and trolleybus often have vibration , using fully , especially be used in being the sensor with the monitor of relevant automobile extensively part. For the engine machine oil the detection of oil quantity and braking oil quantity adopt ,, 4-1 - 5 type floats - spring flat liquid position sensor. Measuring the temperature of cooling fluid to use thermistor type liquid use temperature sensor. 2 河南科技学院2004届毕业论文 英文资料翻译 With the negative thermistor NTC of temperature coefficient, its temperature value and simulated voltage signal become inverse ratio. Imitate voltage signal to go through condenser strain the INO simulated signal passageway that sent into ADC0 809 after wave. When engine preheats , engine water is warm to be 70 to take to show degree, in the data memory in single flat machine, stocking data is compared , after contrast report to alarm the circuit silent light report to the police. Along with the work of unceasing engine, the water warm beginning of engine goes up gradually, when water is warm to exceed 95 to take to show degree only flat microcomputer drive report to alarm circuit report to alarm. Reminding the cooling system of driver notice engine the change of temperature. The weared out condition of the detection automobile braking friction flat uses the wear detection sensor. When installing maked friction flat sensor , the top of word shape the wear limit location that locates in brake brake pad on, when friction flat wear goes to assigned limit , word shape part have been ground to break, circuit break open. At the same time, this unusual signal will be sent into the single flat microcomputer. For the detection driver, whether drink choose the semiconductor gas sensor that applies to ethanol gas detection , when the alcohol content in the air of driver's cab reaches certain density, sends a alarm signal to the single chip microcomputer. When automobile back a car , system uses the barrier of supersonic detection vehicle rear. The rear bumper two ends of automobile pack to set up supersonic project/receiver, two project/receiver with the way of equal time, project/in proper order to take over supersonic , is circulating to go on again and again. Because of this cycle time is from ,,, control, therefore this system will not get the wrong signal influence from external sound wave. Automobile distance the distance of barrier is pass through sonar send reflection return the time that this route spends come to survey and calculate , calculation has following type. ,=1/2*ct ;=331+0.6θ In type , — — — automobile far from the distance of barrier ; — — — supersonic the speed that propagated in air 3 河南科技学院2004届毕业论文 英文资料翻译 , — — — the time of mensuration θ — — — vehicle outside air temperature Angle sonar the barrier that can be measured approximate in 50;, scope within, pawn barrier distance automobile do not go to 50;, , send speech sound to report to alarm. On the road surface that the moist of rainy day or ice snow covers , between road surface and wheel tyre, coefficient of friction is little , vehicle is all right with high speed or sudden braking makes automobile overturn easily, which knows vehicle course Central Africa, is frequently dangerous. Therefore in this system spoil frequently some point using driver in the course of traveling to move brake movement, detection tyre and the slip rate of road surface ( racial of drive wheel and the bad speed of rotational speed of undrive wheel of drive wheel), and the accordingly estimation condition of road surface. And beg the specific practice of slip rate is the sensor of rotational speed of edd current installation in drive with undrive wheel on, measure the difference of rotational speed , so making slip rate finally in order to remind that driver reduces speed. 4.Systematic softwares The main program block diagram shows as Fig.2. The subprogram of speech sound shows as Fig.3. After system starts eclectricity , main program first complete initialization work includes setting up storehouse indicator , sets initial value and the working way of timer/counter, put relevant storage element initial value, start timer/counter open suspend and so on. Then shiping inquire each state input line, looking over whether needs report to alarm. For instance, when sensor detection going to automobile is backing a car,,,, choose want trigger project address, then, starting to project circuit and begin to reckon by time , in the given time if taking over signal from postpone time can calculate barrier arrive to project a little distance. If taking over signal in the given time do not think that barrier far from projects a little distance have exceeded the distance taken over, then project/again to take over next project a little signal. According to the signal taking over and calculating the result, after judging vehicle left or right whether have barrier. In design using the timer of 8031 ,0 reckon by time , in week 0.5,, with the counter of 8031 , the pulse that 1 sends for the wheel sensor of rotational speed count. Setting timer ,0 is 250μ,, therefore in timer ,0 spill over to suspend service program in, basis whether spill over 2000 times come to judge whether arrival 0.5,, at the same time for the calculation of wheel rotational speed and slip rate, is also completed in suspend service program. When reporting to alarm, the subprogram of speech sound used ( Fig.3 ) are the important link of regenerative speech sound, major function is will control order write in ,6668 come to realize speech sound revive. 4 河南科技学院2004届毕业论文 英文资料翻译 5.Summarize Using various sensors, this system can detect various dangerous condition and send the speech sound in time report to alarm , being against contracting in unran, avoiding to occurs the accident and becomes the good assistant of driver safely trip vehicle. This technology is willing to seek investor and cooperative partner. UNIT TWO: The 8051-single chip microcomputer 8051 is the representative product in the MCS-51 series single flat mictocomputer, it has integrated inside the center with the powerful function processor, and have contained hardware to multiply the 8 parallel mouthes of divider, the 21 control registers for special purpose, the program memory of 4 kB, the data memory of 128 bytes and 4 groups , two 16 but editing processor as well as the serial mouth of programming timer / counter and a whole duplex operation. MCS-51 have comparison big seek address space, address line width reaches the piece of 16, external data memory and program memory seek the address scope reaching to 216 = 64 kB, which has been larger as only the flat microcomputer control, at the same time which have for the mouth of I/O visit ability. Besides, MCS-51 adopts modular structure, but a convenient emendation modular can draw the compatible new product of foot and instruction. So, make product form seriation easily. The working frequency of MCS-51 single flat microcomputer is 2-12 MHz, when vibration frequency is 12 MHz, a machine period is 1 us, the speed should be said that it is more rapid. 8051 in integrated perfect various suspend source, user can very much control and use its function conveniently , makers that it's application scope increase , can say that it can satisfy the most of application occasions absolutely. MCS-51 that is the major parts of personal computer integrated in a heart flat on, make data deliver distance shorten greatly, reliability is higher , traversal speed more piece. Since belonging to chip the personal computer that melts , each function parts structure and the layout in chip reach optimization, the ability of interference rejection strengthens , working is also stabilized relatively. Therefore in industry measure the controlling system, using the only flat microcomputer is the most ideal option. The single flat microcomputer belongs to the typical embedded system, so it is low end control systematic best device. 8051 is the typical product of MCS-51 series single flat mictocomputer, we go on with the type of this representative, which is systematic to explain. 8051 single slices microcomputer contains the central processing unit and program memory ( ROM ) , data memory ( RAM ) , timer / counter, parallel inputs or outputs(I/O) and serial interface with suspend few big units such as system and the 3 big bus lines such as data bus line, address bus line and control bus line.Now, we differentiate explanation: 5 河南科技学院2004届毕业论文 英文资料翻译 1、Central processing unit: Central processing unit( CPU ) is the key parts of the entire single flat microcomputer, which is the processor of 8 data widthes , can handle the 8 data or code of binary system, the complete operation and control input export function etc. And working CPU takes the responsibility for controling, commanding and managing entire unit system to coordinate operating. 2、Random access memory ( RAM): 8051 insides the 128 bytes of 8 user data storage elements and the 128 register units for special purpose, which is unified editing addtess, using privately register can only instruct datas used in stocking control, user can only visit , and can not be used to keep the user’s data, so user can RAM of using the only 128, can keep the intermediate result of reading the operation and data that written or the word type table of user definition. 3、Read only memory ( ROM ): 8051 possess 4096 of 8 covered membrane ROM, used in stocking user program original data or form. 4、Timer / counter ( ROM ): 8051 has the two-16 and programming timer / counter,which realization is timing or counting to produce suspend used in control program change direction. 5、 Parallel inputs or outputs( I/O): 8051 possess the 4 groups of 8 doors of I/O ( P0, P1, P2 or P3 ), which is used in the transmission for external data. 6、The serial mouth of duplex operation The 8051 built in serial the communication mouthes of duplex operation, deliver used in the serial data between other equipment. This serial mouth can use to make asynchronous communication dispatcher ware, and also pawn at the same time shift ware use. 7、Suspend system: 8051 has more than perfect suspend function, and has two Outside suspend, two timing / counters suspend and one serial suspend , the prior rank that can satisfy different control requirement and has 2 levels is selected. 8、Clock circuit The clock circuit with the 8051 built-in highest frequencies reaches to 12 MHz, which is used in the pulse sequential that produces entire only flat microcomputer operation . But 8051 single slices microcomputer needs the vibration capacity to put outside. 6 河南科技学院2004届毕业论文 英文资料翻译 译 文 第一篇: 计算机控制汽车安全语音提示系统 1、引言 近几年来,我国公路交通事业发展很快,尤其是高速公路的出现,大大提高了车辆运行速度及流通密度,但随之而来的交通事故也频频发生,造成人员伤亡及经济财产损失。如何减少交通事故的发生已成为当务之急。驾驶员的疏忽大意是交通事故发生的重要原因之一,因此研制一套简单可靠,能自动检测车辆各部分状况,发现异常情况能及时向驾驶员发出语音提示的安全系统就有很大实际意义。 2、系统思想 根据引发事故的常见因素,这套系统将实现下列检测功能: , 关车门时,检测门锁是否扣紧; 检测发动机的冷却水温; , ; 检测发动机机油油量; , 检测制动油油量; , 汽车倒车时,检测车后障碍物情况; , 检测汽车制动器摩擦片的磨损情况; , 检测路面状况; , 检测驾驶员是否酗酒。 汽车发动机起动后系统开始检测,当发现异常情况时,如车门未关紧、冷却水温过高、油量不足、倒车时车后障碍物过近、摩擦片过度磨损、路面摩擦系数过小、驾驶室的空气中酒精含量过高等,便启动安全语音提示系统发出语音提示。 在语音系统中采用,6668语音合成芯片录制并再生语音信号。根据需要,在,,,的控制下,要求能输出以下的提示语音: ,注意车门未关; ,注意温度超限; ;机油油量不足; , 制动油量不足; ,小心左后障碍; ,小心右后障碍; , 制动失灵危险; ,注意路面较滑; ,酒后驾驶危险。 在整个设计中,要求经济、简单、可靠,便于推广。 3、系统硬件 为完成上述的各项检测及语音输出要求,本系统采用如图1所示的硬件结构。 电子控制器采用8031单片机和相应的数字电路,由它采集各传感器的信号,根据处理、计算结果决定并控制语音的合成输出。由于8031不含,,,,因此扩展一片,,,,,2764作为程序存储器。 7 河南科技学院2004届毕业论文 英文资料翻译 语音系统以日本东芝公司生产的,6668语音合成芯片为核心,另外再采用一片,,,,,27256存储事先录制好的语音数据,利用8031管理其中的数据,根据各种故障进行调取、组合,由,6668输出。在本设计中,6668采用,,,操作模式与8031连接,其指令通过,6668的,,,接口写入。,6668的,,,1端和数据输入端,,端分别与74,,165(8位并/串移位寄存器)的,,端和,,端相 165便得到合成的语音输出。 连,这样,,,,只要将,,,,,27256的数据经数据总线送入74,, 在本设计中对车门、倒车检测均采用,,,226干簧片开关传感器。干簧片开关传感器是一种磁驱动型开关,其运动部分质量小,固有频率高,响应速度很快,而且使用寿命长,即使是在汽车、电车等经常有振动的场所都可以充分使用,特别是可广泛用于与汽车有关的监控器的传感器部分。 对发动机机油油量和制动油油量的检测均采用,,4-1-5型浮子-簧片液位传感器。 测量冷却液温度使用热敏电阻式液用温度传感器。 检测汽车制动器摩擦片的磨损情况使用磨损检测传感器。在安装时,使摩擦片传感器,字形的顶端位于制动器摩擦块的磨损限度位置上,当摩擦片磨损到规定限度时,,字形部分被磨断,电路断开,同时这一异常信号将被送到单片机中。 为了检测驾驶员是否饮酒,选用适用于乙醇气体检测的半导体气敏元件,当驾驶室空气中的酒精含量达到一定浓度时,向单片机发出报警信号。 在汽车倒车时,系统利用超声波检测车辆后方的障碍物。在汽车的后保险杠两端装设超声波发射/接收器,两个发射/接收器以均等时间的方式,依次发射/接收超声波,循环反复进行。由于这一循环时间是由,,,控制,因此该系统不会受到来自外部声波的错误信号影响。汽车距障碍物的距离是通过声纳发出到反射回来这段行程所花费的时间来测定并进行计算的,计算式如下: =12;,;=331+0 6θ , 式中 ,———汽车距障碍物的距离 ;———超声波在空气中传播的速度 ,———测定的时间 θ———车外空气温度角 声纳可测得的障碍物大约在50;,范围以内,当障碍物距汽车不到50;,时,发出语音报警。 在雨天潮湿或冰雪覆盖的路面上,路面和车轮轮胎之间摩擦系数小,高速行车或突然制动容易使汽车颠覆,这在行车过程中非常危险。因此在该系统中,利用驾驶员在行驶过程中惯常有的点动制动动作,检测轮胎与路面滑移率(驱动轮和非驱动轮的转速差与驱动轮速度之比),并据此估算路面的状况。而求滑移率的具体做法是将转速涡流传感器安装在驱动与非驱动轮上,测出转速差,从而算出滑移率,以提醒驾驶员降低车速。 4、系统软件 主程序框图如图2所示。语音子程序如图3所示。 系统通电后,主程序先完成初始化工作,包括设堆栈指针,设定定时器/计数器的工作方式及初值,将有关存储单元置初值,启动定时器/计数器,开中断等等。然后轮询各状态输入口线,查看是否需要报警。例如,当传感器检测到汽车正在倒车时,,,,选定要触发的发射点地址,然后启动发射电路并开始计时,在给定时间内如接收到信号则由延迟时间可以计算出障碍物到发射点的距离。如在给定时间内接收不到信号,则认为障碍物距发射点的距离已超过可接收距离,然后再发射/接收下一个发射点的信号。根据信号接收和计算的结果,可以判断车辆后左方和后右方是否有障碍物。 在设计中利用8031的定时器,0计时,周期为0 5,,采用8031的计数器,1对车轮转速传感器发出的脉冲计数。设定定时器,0为250μ,,因此,在定时器,0的溢出中断服务程序中,根据是否溢出2000次来判断是否到达0 5,,同时对车轮转速和滑移率的计算也在该中断服务程序中完成。 报警时调用的语音子程序(图3)是语音再生的重要环节,主要功能是将控制命令写入,6668来实现语音的再生。 5、总结 8 河南科技学院2004届毕业论文 英文资料翻译 利用各种传感器,该系统可以检测出多种危险情况并及时发出语音报警,防患于未然,避免事故的发生,成为驾驶员安全行车的好帮手。本技术愿寻求投资者和合作伙伴。 第二篇: MCS-51单片机特性和结构 8051是MCS-51系列单片机中的代产品,它内部集成了功能强大的中央处理器,包含了硬件乘除法器、21个专用控制寄存器、4kB的程序存储器、128字节的数据存储器、4组8位的并行口、两个16位的可编程定时/计数器、一个全双工的串行口以及布尔处理器。 MCS-51具有比较大的寻址空间,地址线宽达16条,即外部数据存储器和程序存储器的寻址范围 16达2=64kB,这作为单片机控制来说已是比较大的,这同时具备对I/O口的访问能力。此外,MCS-51采用模块化结构,可方便地增删一个模块就可引脚和指令兼容的新产品。从而容易使产品形成系列化。 MCS-51单片机的工作频率为2-12MHz,当振荡频率为12MHz时,一个机器周期为1us,这个速度应该说是比较快的。 8051中集成了完善的各种中断源,用户可十分方便地控制和使用其功能,使得它的应用范围加 大,可以说它可以满足绝大部分的应用场合。 MCS-51把微型计算机的主要部件都集成在一块心片上,使得数据传送距离大大缩短,可靠性更高,运行速度更块。由于属于芯片化的微型计算机,各功能部件在芯片中的布局和结构达最优化,抗干扰能力加强,工作亦相对稳定。因此,在工业测控系统中,使用单片机是最理想的选择。单片机属于典型的嵌入式系统,所以它是低端控制系统最佳器件。 8051是MCS-51系列单片机的典型产品,我们以这一代表性的机型进行系统的讲解。 8051单片机包含中央处理器、程序存储器(ROM)、数据存储器(RAM)、定时/计数器、并行接口、串行接口和中断系统等几大单元及数据总线、地址总线和控制总线等三大总线,现在我们分别加以说明: 1、中央处理器: 中央处理器(CPU)是整个单片机的核心部件,是8位数据宽度的处理器,能处理8位二进制数据或代码,CPU负责控制、指挥和调度整个单元系统协调的工作,完成运算和控制输入输出功能等操作。 2、数据存储器(RAM): 8051内部有128个8位用户数据存储单元和128个专用寄存器单元,它们是统一编址的,专用寄存器只能用于存放控制指令数据,用户只能访问,而不能用于存放用户数据,所以,用户能使用的的RAM只有128个,可存放读写的数据,运算的中间结果或用户定义的字型表。 3、程序存储器(ROM): 8051共有4096个8位掩膜ROM,用于存放用户程序,原始数据或表格 4、定时/计数器(ROM): 8051有两个16位的可编程定时/计数器,以实现定时或计数产生中断用于控制程序转向。 5、并行输入输出(I/O)口: 8051共有4组8位I/O口(P0、 P1、P2或P3),用于对外部数据的传输。 6、全双工串行口: 8051内置一个全双工串行通信口,用于与其它设备间的串行数据传送,该串行口既可以用作异步通信收发器,也可以当同步移位器使用。 7、中断系统: 8051具备较完善的中断功能,有两个外中断、两个定时/计数器中断和一个串行中断,可满足不同的控制要求,并具有2级的优先级别选择。 9 河南科技学院2004届毕业论文 英文资料翻译 8、时钟电路: 8051内置最高频率达12MHz的时钟电路,用于产生整个单片机运行的脉冲时序,但8051单片机需外置振荡电容。 10
/
本文档为【计算机控制汽车安全语音提示系统翻译】,请使用软件OFFICE或WPS软件打开。作品中的文字与图均可以修改和编辑, 图片更改请在作品中右键图片并更换,文字修改请直接点击文字进行修改,也可以新增和删除文档中的内容。
[版权声明] 本站所有资料为用户分享产生,若发现您的权利被侵害,请联系客服邮件isharekefu@iask.cn,我们尽快处理。 本作品所展示的图片、画像、字体、音乐的版权可能需版权方额外授权,请谨慎使用。 网站提供的党政主题相关内容(国旗、国徽、党徽..)目的在于配合国家政策宣传,仅限个人学习分享使用,禁止用于任何广告和商用目的。

历史搜索

    清空历史搜索