汽车倒车雷达预警系统研究
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摘要
本文研究了一种汽车倒车雷达预警系统。该系统在常见的汽车倒车预警装置的基础上采用计算机控制技术和超声波测距技术,通过显示障碍物与汽车的距离并根据其距离远近实时发出报警,解除了驾驶员泊车和起动车辆时前后左右探视所引起的困扰,提高了驾驶安全性。
     本文在研究汽车倒车雷达预警系统过程中,运用理论分析、电路设计和计算机仿真等研究手段,完成了倒车雷达预警系统硬件和软件的设计,采用了模糊控制算法,进行了系统的计算机仿真。
     本文在查阅、分析国内外倒车雷达系统相关技术的基础上,结合最新研究成果,对基于超声波测距的倒车雷达预警系统的研制进行了深入探讨和研究。该系统分为测距模块、系统控制模块和显示报警模块,并分别对其进行方案分析,构建了倒车雷达预警系统的系统构架和设计方案;在硬件电路中,详细阐述了运用单片机技术实现的可视倒车雷达预警系统的测距实现原理,分析了以AT89S52单片机为主控单元的系统硬件和软件设计,并对该系统进行了试验和误差分析,给出了本系统的稳定性指标。
     试验结果显示,该系统对室内有限距离的距离测量具有较高的精度,实现了倒车提示和距离报警功能,其主要技术指标达到了系统设计要求,并通过系统仿真研究,验证了系统的可靠性和可行性。
The thesis introduces a kind of Car Reversing Aid-System in detail. The system adopted the technology of computer controll and Ultrasonic Distance-Measurement based on the currently Car Reversing Aid-System.The system alarmed in time through displaying the distances between obstacles and cars. It soluted the puzzle poblem because the drivers looked around through the mirrors when they stopped or started the vehicle. The system would greatly solve the difficulties and meanwhile improve the driving safety.
     In this thesis analysis in theory, design of electronic circuit and experimental investigation on real time simulation system are employed to carry out the research. It realized the design of hardware and software. According to the paper, the fuzzy control theory is introduced and the simulation is developed in the system.
     The thesis mainly analyzed deeply the research on the design of Car Reversing Aid-System. Firstly, according to the latest researches in domestic and foreign countries, the system consisted of the Distance-Measurement Module, Control Module and Display or Alarm Module.The paper discussed the scheme of three module and selected the best system scheme in the paper. Secondly, it presented the theory and characters of Ultrasonic Distance-Measurement and analyzed in detail design of the hardware and software based on the AT89S52 microcontroller. Thirdly, the fuzzy control algorithm is proposed, the simulation is introduced into the system. At last, through the experiment and error analysis, it proved the stability of the system.
     To monitor its reliability, imitations of main cases of the system have been carried out and stable instructions of strategic system have already been received, which verify its efficiency and feasibility.
引文
[1] 纪寿文等.国内外智能车辆研究进展.中国交通研究与探索.第二届全国交通领域青年学者会议,武汉,2001.
    [2] 董子和,李永辉.超声波测距系统的建立及其在汽车防撞系统的应用.汽车电器.1997(1):33~38.
    [3] 柳长立,杨国清,向忠祥.日本未来汽车的安全预警系统,汽车电器,1999,12(1):23~24。
    [4] 孙传铮,蔡玉良.单片微机超声波汽车倒车测距仪.微型机与应用,1996,23(4):24~26.
    [5] H. Elmer; H. Schweinzer; G. Magerl High resolution Supersonic distance measurement for long distances Technisches Messen[J]. 2003, 70 (4): 173-179.
    [6] 董子和,李永辉.超声波测距系统的建立及其在汽车防撞系统的应用.汽车电器.1997(1):33~38.
    [7] 史建军,张玺,王会升.高精度短程激光实时测距系统[J].激光与光电子学进展,2001,(9):33.
    [8] 高林奎,宋玮.激光测距[M].北京:人民铁道出版社,1977,102~106.
    [9] GueuningF. E. Varlan, M. Accurate Distance Measuremnt by an Autonomous Supersonic System Combining Time-of-Flight and Phase-Shift Methods[J]. IEEE Transactions on Instrumentation andMeasurement. US: 1997, 46 (6): 1236-1240.
    [10] 樊昌元,丁义元.高精度测距雷达研究[J].电子测量与仪器学报,2000,14(2):52-56.
    [11] 苏长赞编著.红外线与超声波遥控[M].无线电爱好者丛书,北京:人民邮电出版社,1993.
    [12] 许天增.许克平等.超声传输特性和超声传感系统研究.厦门大学学报.2001(2):34~35.
    [13] 何祚镛,赵玉芳.声学理论基础.北京:国防工业出版社, ,98l
    [14] 胡建凯,张谦琳.超声波检测原理和方法[J].中国科技大学出版社,1993,10.
    [15] E. Francis Guenning, Mihai Varlan, Christian E. Eugene, etal. Accurate distance measurement by an autonomous ultrasonic system combining time-of-flight and phase-shift methods. IEEE Transaction on Instrumentation and Measurement, 1997, 46 (6): 1236~1240.
    [16] 时德刚,刘晔.超声波测距的研究.计算机测量与控制[J].2002,10(7):480-482.
    [17] 胡萍.超卢波测距仪的研制[J].计算机与现代化,2003,(10):54-56.
    [18] 杜功焕,朱哲民,龚秀芬著.声学基础[M].南京:南京大学出版社.声学基础:173~188.
    [19] 孟立凡,郑宾,候文.超卢测距换能器及收发电路的研究.华北工学院学报. 2001 (2): 76~77.
    [20] C. Stiller, J. Hippo, Multi-sensor obstacle detection and tracking. Image and Vision Computing, 2000: 389~396.
    [21] 翁黎朗,杨立.超卢波换能器驱动和接收电路的研究[J].集美大学学报.自然科学版,1998,3(4):60-64.
    [22] 吴妍,袁佑新.可视倒车雷达预警系统设计.微计算机信息,2007,2:268~270.
    [23] 姚中,虞给扬.滤波电感在电源抗干扰中的应用.电源技术应用.1999(5):22~28.
    [24] 锻九州.放大电路实用设计手册[s].沈阳:辽宁科学技术出版社,2002,5.
    [25] LM393, DATASHEET[M].2000.
    [26] H. Amld, K. Yamada, Development of Rear-end Collision Avoidance System.Conference Proceeding of IEEE Intelligent Transportation Systems, 2000.10 (7): 232~236.
    [27] 马田华,陈东,蒋国平.可编程单总线数字式温度传感器DS18820的原理与应用[J].电子质量,2004,(7):83-85,67.
    [28] 苏麟祥.DS18820数字温度传感器的功能特性及其设计 世界采矿快报 2009,16(9).
    [29] 李华,MCU-51系列单片机实用接口技术[M].北京:北京航空航天大学出版社,1993,6.
    [30] 陈光东.单片机微型计算机原理与接口技术(第二版)[M].武汉:华中理工大学出版社,1999.4第2版:22~29.
    [31] 尚志远.压电超声换能器的性能分析及应用领域.压电与声光.1994,16(1):29~33.[26] Xieor.X5043/5045 DTAT SHEET[M].1998.
    [32] 李哲英,李晓光等编著 现代电子系统小功率直流稳压电源设计 北京:中国铁道出版社 1996,第一版10.
    [33] 李文玉,李玉玲.浅谈LM317应用与保护[J].电子制作,2003,(4):54.
    [34] 徐淑华,程退安,姚万生.单片机微型机原理及应用(M].哈尔滨:哈尔滨工业大学出版社,1999,6.
    [35] 王丰,付建华,薛红宣等.采用软件抗干扰设计提高微机系统的可靠性[J].高原地震,2004,16(1):63-67.
    [36] 吕治国,周文武.基于MATLAB的模糊推理系统实现方法.微型机与应用.2002,7:50-52.
    [37] 亢海伟,杨庆芬,王硕禾.基于MATLAB模糊逻辑工具箱的模糊控制系统仿真.自动化与仪器仪表.2000(2):43-44.
    [38] 苏炜,龚壁建.超声波测距误差分析[J].传感器技术,2004,23(6):8-11.

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