【正文】 的迫切需求，家用汽車將來的發(fā)展趨勢也將越來越趨向智能化，無人駕駛將會不再是夢想。并論述了傳感器在當今智能系統(tǒng)中所承擔的重要地位。全文由制作智能車的背景概述、硬件電路的設(shè)計、機械的調(diào)整、軟件的設(shè)計四部分組成?；诠怆妭鞲衅鲗ほE智能車的研究摘 要隨著近年來，智能化交通工具被廣泛使用，智能汽車的設(shè)計和開發(fā)，將從根本上改變現(xiàn)有汽車的信息采集處理、數(shù)據(jù)交換、行車導航與定位、車輛控制的技術(shù)方案與體系結(jié)構(gòu)。本文提出并設(shè)計了一種基于Freescale公司HCS12單片機系列設(shè)計的無人控制式智能車系統(tǒng)模型，主要論述了采用MC9SXS128單片機控制，通過光電效應(yīng)識別有黑色引導線，白色路徑的道路方案，能夠過最小曲率半徑50厘米的小彎，同時采取減速策略，同時在過波浪彎的情況下，使車盡可能的穩(wěn)定，智能識別十字交叉黑線，在直道上采用加速策略。介紹了系統(tǒng)的開發(fā)背景、單片機技術(shù)、光電檢測技術(shù)；綜合論述了系統(tǒng)的要求和功能設(shè)計，并給出了系統(tǒng)整體構(gòu)架；對主要硬件電路系統(tǒng)進行了電路原理圖的設(shè)計，通過數(shù)據(jù)線連接單片機系統(tǒng)，對其進行指令控制，并設(shè)計軟件的流程框圖，用C語言編程。系統(tǒng)的制作過程中主要利用MC9SXS128的強大功能，如多級中斷，計數(shù)器實用，多通道PWM調(diào)制，鎖相環(huán)超頻工作燈功能。關(guān)鍵字：智能車；MC9SXS128；光電檢測；路徑識別；PWM調(diào)制；C語言編程The Resarch Based On Photoelectric Sensor Of Tracking Intelligent CarABSTRACTFrom the beginning of these year, intelligent transportation is widely used, the design and development of intelligent vehicle will fundamentally change the existing the technology solutions and system structure of car from information collection processing, data exchange, traffic navigation and positioning, vehicle control .This thesis put forword and design a microcontroller of unmanned intelligent vehicle system model based on Freescale pany HCS12 family design , mainly discusses the intelligent car which takes control of MC9SXS128 MCU control through the photoelectric identification of road system of the black guide lines and the white path. The intelligent car can make a least curvature of minimumcurvature radius of 50 cm while taking the slow strategy which can make the car as steadily as also take the intelligent identification of crossed black lines and make accelerated strategy on the straight path.The whole passage have four parts——an background of intelligent vehicle,the hardware circuit design, the mechanical adjustment and software design. The thesis introduces the background of the system development,microcontroller technology,photoelectric detection,mainly discussing the system requirements and functional design,also giving the overall system architecture. The design includes the circuit design of main hardware circuit system and through the cablesystem via MCU system it take control of the car by orders based on the block diagram design software with C language programming. The thesis discusses the important positon of intelligent sensor systems today.The producion process of system mainly uses MC9SXS128 powerful function, such as multilevel interrupts, counters and practical, multichannel PWM modulation, phaselocked loop overclocking features working lights.The program has some of the practical and forwardlooking, intelligent, it is based on the current urgent need for intelligent. And I will surely believe in the near future family car will bee more and more intelligent, unmanned vehicle will be no longer a dream.Key words: intelligent car 。photoelectric detecting。 PWM control。自20世紀80年代以來，智能控制理論與技術(shù)在交通運輸工程中越來越多地被應(yīng)用，在這一背景下，智能汽車的概念應(yīng)運而生。智能汽車是一種高新技術(shù)密集的新型汽車，研究人員正從智能汽車的信息系統(tǒng)、控制系統(tǒng)、網(wǎng)絡(luò)環(huán)境及智能結(jié)構(gòu)等幾個方面進行研究。自20世紀90年代以來，隨著汽車市場競爭激烈程度的日益加劇和智能運輸系統(tǒng)研究的興起