有關(guān)智能小車(chē)的外文文獻(xiàn)翻譯

1、<p>　　Intelligent Vehicle</p><p>　　Our society is awash in “machine intelligence” of various kinds.Over the last century, we have witnessed more and more of the “drudgery” of daily living being replaced

2、 by devices such as washing machines.</p><p>　　One remaining area of both drudgery and danger, however, is the daily act ofdriving automobiles. 1.2million people were killed in traffic crashes in 2002, whic

3、h was 2.1% of all globaldeaths and the 11th ranked cause of death . If this trend continues, an estimated 8.5 million people will be dying every year in road crashes by 2020. in fact, the U.S. Department of Transportatio

4、n has estimated the overall societal cost of road crashes annually in the United States at greater than $230 billion .</p><p>　　when hundreds or thousands of vehicles are sharing the same roads at the same t

5、ime, leading to the all too familiar experience of congested traffic. Traffic congestion undermines our quality of life in the same way air pollution undermines public health.Around 1990, road transportation professional

6、s began to apply them to traffic and road management. Thus was born the intelligent transportation system (ITS). Starting in the late 1990s, ITS systems were developed and deployed。In developed countri</p><p&g

7、t;　　cant amounts of information about travel conditions, whether they are driving their own vehicle or riding on public transit systems.</p><p>　　As the world energy crisis, and the war and the energy consum

8、ption of oil -- and are full of energy, in one day, someday it will disappear without a trace. Oil is not in resources. So in oil consumption must be clean before finding a replacement. With the development of science an

9、d technology the progress of the society, people invented the electric car. Electric cars will become the most ideal of transportation. In the development of world each aspect is fruitful, especially with the automob&

10、lt;/p><p>　　Will was electric cars and intelligent car replaced. This is the question that day after timing will come. ABS, GPS, and various new 4WD 4WS, electronic products and the modern era, excellent perfor

11、mance auto tacit understanding is tie-in, bring us unparalleled precision driving comfort and safety of driving.</p><p>　　The hardware and software of the intelligent vehicle are designed based on AVR.This s

12、ystem could set the route in advance. The vehicle could communicate with the PC vianRF401 and could run safely with the help of ultra sound detection and infrared measuring circuit.Neural network self- study is used to i

13、mprove the intelligence of the vehicle.</p><p>　　The performance of servo systems will determine the property of the robot． Based on AVRseries MCU，the velocity servo system for driving motor is created in th

14、is paper，including a discrete PIregulator which will work out a PWM control signal with applying the skill of integral separation． The velocities of motors will be controlled real － time with the speed sampling frequency

15、 set for 2KHz by using the AVR － GCC compiler software development． Compared to the servo system development based on the </p><p>　　A new design of contest robot cont rol system based on AVR Atmega8 was put

16、forward. According to the character of contest robot , the main cont rol unit , motor drive unit , sense detection unit and LCDdisplay unit wereintroduced. Furthermore the servo driver system based on MCBL3006S , the lin

17、e t racker sensor system and the obstacle avoidance sensor system were presented in detail. Finally the performance showsthat the cont rol system is open , simple , easy programming , intelligent and effic</p><

18、;p>　　Avoidance rules of intelligent vehicle obstacle are introducted. Through the collection of infrared sensor formation, the rules use diode D1 to launch and diode D2 to receive infrared signals. Infrared transmitt

19、er signal without a dedicated circuit comes directly from the MCU clock frequency, which not only simplifie the circuit and debugging, but also make the circuit stability and anti- jamming capability greatly enhanced. Af

20、ter the experimental verification, the system runs reliably meet the</p><p>　　A smart car control sys tem of the path informat ion identif ied based on CCD camera was introduced. The hardware s truc ture and

21、 scheme were designed. The contro l strategy of s teering mechanismwas presented. T he smart car not only can identify the road prec isely, but also have antinterference performance, and small s teady state error.</p&

22、gt;<p>　　This article designed smartcar system,includes the aspects of the sensor information acquisition and processing, motor drive, control algorithm and control strategy etc.Using laser sensor to collect the r

23、oad information which can feedback to the microcontroller control system,then making analytical processing combined with the software.With velocity feedback and PID control algorithms to control steering engine and the s

24、peed of smartcar.Verified by actual operation, this method makes smartcar tr</p><p>　　By the aid o f the pro fessio na l know ledge of contr ol, patter n recog nitio n, senso r t echnolog y, aut omotive elec

25、t ronics, elect ricit y, computer, machiner y and so on, an intelligent vehicle system is designed with PID control a lg orithm,CCD detection system and H C9SDG128 M CU. Codew arr ior IDE integr ated dev elo pment pro gr

26、 amming env ir onment is taken as a basic softw are platform t hat can aut omatically deal w ith the traffic and image pro cessing, and then adjust the mo ving</p><p>　　Based on the research background of th

27、e Free-Scale smart car competition， a smart trackfollowing car is designed. In the car, the photo electricity sensor is used to check the path and obtain the information of racing road, andcalculate the error between the

28、 car and the black line. The fuzzy control is used to control the velocity of the car. The experiments show that the smart car based on the fuzzy control has high accuracy on the judgment of the path, stability and veloc

29、ity control.</p><p>　　In the wake of the computer and information revolutions, motor vehicles are undergoing the most dramatic changes in their capabilities and how they interact with drivers since the early

30、 years of the century. </p><p>　　In 1908, Henry Ford's Model T exemplified major breakthroughs in automotive design. Not only did its interchangeable parts inaugurate easy and economical mass production,

31、 but its "user-friendly" operation allowed almost anyone to drive. Nearly 90 years later, the motor vehicle is resembling less and less Ford's simple machine and quickly becoming a complex "mobile comp

32、uter", capable of acting as a navigator, a safeguard, and even, a second driver. These new capabilities will not only change how </p><p>　　However, intelligent vehicles aren't quite here. Instead, t

33、he components that make vehicles smarter -- new information, safety, and automation technologies -- are arriving on the market as piecemeal accessories, offered either as optional equipment by new vehicle manufacturers o

34、r as speciality components by after-market suppliers. These technologies are being developed and marketed to increase driver safety, performance, and convenience. These individual technologies, however, have yet to be in

35、t</p><p>　　The automotive industry is already aware of and addressing potential problems associated with the uncoordinated influx of technology. But their progress is hampered by technical and economic obsta

36、cles, uncertain consumer interest, and insufficient standards and guidelines. Also, neither original vehicle manufacturers or government regulators (unless safety problems are clearly proven) have control over after-mark

37、et products, especially their use in trucks and buses. However, without a "human-cen</p><p>　　Recognizing the importance of smart vehicles and the potential for unintended consequences if human factors

38、are not placed at the center of their design, DOT launched the Intelligent Vehicle Initiative (IVI) in 1997. This initiative aims to accelerate the development, availability, and use of integrated in-vehicle systems that

39、 help drivers of cars, trucks, and buses operate more safely and effectively.</p><p>　　The 1980s television series "Knight Rider" featured an intelligent vehicle that could leap moderately tall bui

40、ldings, drive itself at seemingly supersonic speeds, spy on bad guys, and had the diction and personality of an English butler. The car was not only smart, but smart-alecky. Although intelligent vehicles in the real worl

41、d will not be able to fly over standing traffic, they will have formidable capabilities. As envisioned by IVI, smart vehicles will be able to give route directions, sense</p><p>　　The use of information- and

42、 computer-based technologies in motor vehicles, however, is not new. Widescale computerization of motor vehicles began in the 1980s with technologies designed to enhance vehicle operation and driver comfort. These techno

43、logies included electronic fuel injection to control engine performance, particularly to reduce vehicular emissions and improve fuel economy, antilock braking systems to help drivers retain control on slippery roads, and

44、 cruise control to relieve driver</p><p>　　Just as people possess different specialized abilities, in-vehicle ITS technologies endow vehicles with different types and levels of "intelligence" to co

45、mplement the driver. Driver information systems expand the driver's knowledge of routes and locations. Warning systems, such as collision-avoidance technologies, enhance the driver's ability to sense what's g

46、oing on in the surrounding environment. And driver assistance and automation technologies simulate a driver's thinking and physical action</p><p>　　But while a smart vehicle will extend the driver's

47、capabilities, it will also potentially expand the driver's traditional role. In particular, in the midst of new in-vehicle technologies, the human role expands from that of sensory-motor skill, writes Thomas Sheridan

48、, a professor who heads the Human-Machine Systems Laboratory at the Massachusetts Institute of Technology (MIT), "to that of planner, programmer, monitor of the automation, diagnostician ..., learner and manager.&qu

49、ot;8</p><p>　　Integration: The Key to Human-Centered Design </p><p>　　A key criteria of human-centered design is ensuring that a technology provides the intended benefits without engendering uni

50、ntended adverse consequences. Driving is a potentially dangerous activity that requires attentive and alert drivers. Although technologies in the vehicle can enhance the driver's capabilities and comfort, they can al

51、so create potential distractions that transform even the best driver into a road hazard. The National Public Services Research Institute, for example, found tha</p><p>　　ITS research has already shown the be

52、nefits and feasibility of many of the technologies that will be contained within intelligent vehicles: </p><p>　　Route guidance systems will help drivers better navigate unfamiliar streets or find the quicke

53、st route to their destinations. In the TravTek field test in Orlando, sponsored by DOT in 1992 and 1993, tourists driving vehicles equipped with route guidance systems made 30 percent fewer wrong turns and shortened thei

54、r travel times by 20 percent compared to drivers who used paper maps. </p><p>　　Collision-avoidance systems will expand the paradigm of traffic safety from protecting the occupant of the vehicle to preventin

55、g accidents altogether. According to one study, 60 percent of crashes at intersections and about 30 percent of head-on collisions could be avoided if drivers had an additional half-second to react. Nearly 75 percent of

56、vehicular crashes are caused by inattentive drivers. NHTSA estimates that three types of collision-avoidance systems could prevent 1.1 million accidents </p><p>　　In-vehicle automation systems will temporari

57、ly take over driving during emergencies or allow autopiloting for prolonged durations. In 1996, NHTSA began field testing intelligent cruise-control systems, which will automatically adjust a vehicle's cruising speed

58、 to maintain a safe distance from vehicles ahead, to evaluate the safety impact of this technology. In a more dramatic step towards "hands-off, feet-off" driving, the National Automated Highway Systems Consorti

59、um (NAHSC), which is a partner</p><p>　　Aside from delivering safety and efficiency benefits for the traveling public, the federal government expects that indigenous development of intelligent vehicles could

60、 promote America's economic competitiveness.</p><p>　　For intelligent vehicles to reach their maximum potential, they must be able to communicate with an intelligent transportation infrastructure and wit

61、h other intelligent vehicles. For example, communication with a smart infrastructure would allow an intelligent vehicle to learn of incidents and then proactively suggest alternative routes in real time. Smart vehicles c

62、ould also act as probes that could send information about travel conditions back to the infrastructure to create a richer base of k</p><p>　　Over the next five to 10 years, we should see the first generation

63、 with advances in the capabilities of individual driver information and warning systems. These systems will become increasingly integrated with information coordinated through displays. Drivers will still maintain full c

64、ontrol over their vehicles although collision-warning systems will provide limited automated assistance. In addition, vehicles would have a greater intelligence about road conditions in real time due to rudimentary</p

65、><p>　　In about 10 to 15 years, the application of improvements in individual ITS systems will bring on a second generation with more and better intelligence in the vehicle. Although drivers will still maintain

66、 full control over their vehicles, collision-avoidance systems could take control temporarily during emergencies. In addition, more sophisticated voice recognition systems will be incorporated within the driver-vehicle i

67、nterface. Vehicles will be able to communicate with each other to improve col</p><p>　　In about 20 years, in the third generation, we could see fully automated highway systems, cooperative systems of vehicle

68、s and infrastructure, and advances in the driver-vehicle interface, such as use of vision enhancements and head-up displays.</p><p>　　Looking back on a century inundated by technology, the motor vehicle stan

69、ds out as a singularly dynamic invention. In the next century, this dynamism will be driven by advances in information and computer technology. Our challenge is to ensure that new information, safety, and automation tech

70、nologies are integrated to create human-centered intelligent vehicles that can advance safety, surface transportation efficiency, and economic competitivenes</p><p><b>　　外文資料譯文</b></p><

71、;p><b>　　智能車(chē)</b></p><p>　　我們的社會(huì)充斥著各種各樣的“機(jī)器智能“。在過(guò)去的世紀(jì)，我們目睹越來(lái)越多日常生活中的“苦差事“被機(jī)器設(shè)備解決，如洗衣機(jī)。</p><p>　　然而，一個(gè)既枯燥又危險(xiǎn)的保留區(qū)域就是日常駕駛汽車(chē)。2002年，120萬(wàn)人死于交通事故，這是所有全球2.1％死亡，死因排名第11。如果這種趨勢(shì)繼續(xù)下去，估計(jì)從2020年起每

72、一年死于道路交通統(tǒng)（ITS）。 20世紀(jì)90年代中后期開(kāi)始，它的系統(tǒng)進(jìn)行了開(kāi)發(fā)和部署。在發(fā)達(dá)國(guó)事故的人將達(dá)到850萬(wàn)人。事實(shí)上，美國(guó)交通部估計(jì)交通事故的整體社會(huì)成本每年超過(guò)2300億美元。 </p><p>　　數(shù)百或數(shù)千輛車(chē)共享相同的道路時(shí)，就導(dǎo)致了大家都熟悉的交通擠塞。交通擠塞破壞了我們的生活質(zhì)量就像空氣污染損害公眾健康。1990年左右，公路運(yùn)輸?shù)膶?zhuān)業(yè)人士開(kāi)始申請(qǐng)讓他們?cè)诮煌ê偷缆饭芾?。于是誕生了智能交通系家

73、，旅客今天能夠獲得旅行條件的信息，無(wú)論是駕駛自己的車(chē)或乘坐公共交通系統(tǒng)。</p><p>　　隨著世界能源危機(jī)的持續(xù)，以及戰(zhàn)爭(zhēng)和能源-----石油的消耗及汽車(chē)飽有量的增加，能源在一天一天下降，終有一天它會(huì)消失的無(wú)影無(wú)蹤。石油不是在生資源。所以必須在石油耗凈之前找到一種代替品。隨著科技的發(fā)展社會(huì)的進(jìn)步，有人發(fā)明了電動(dòng)汽車(chē)。電動(dòng)汽車(chē)將成為人們最為理想的交通工具。</p><p>　　世界在各各

74、方面的發(fā)展都取得豐碩成果，尤其是隨著汽車(chē)電子技術(shù)和計(jì)算機(jī)以及發(fā)展迅速的信息時(shí)代。電子控制技術(shù)在汽車(chē)上得到了廣泛應(yīng)用，汽車(chē)上應(yīng)用的電子裝置越來(lái)越豐富，電子技術(shù)不僅用來(lái)改善和提高傳統(tǒng)汽車(chē)電器的質(zhì)量和性能，而且還提高了汽車(chē)的動(dòng)力性、燃油經(jīng)濟(jì)性、可靠性以及廢氣排放的凈化性。汽車(chē)上廣泛使用電子產(chǎn)品不僅降低了成本，并且減少維護(hù)的復(fù)雜性。從發(fā)動(dòng)機(jī)的燃油噴射點(diǎn)火裝置、進(jìn)氣控制、廢氣排放控制、故障自診斷到車(chē)身輔助裝置都普遍采用了電子控制技術(shù)，可以說(shuō)今后汽

75、車(chē)發(fā)展主要以機(jī)電一體化。汽車(chē)上廣泛采用的電子控制點(diǎn)火系統(tǒng)主要有電子控制燃油噴射系統(tǒng)、電子控制點(diǎn)火系統(tǒng)、電子控制自動(dòng)變速器、電子控制防滑（ABS/ASR）控制系統(tǒng)、電子控制懸架系統(tǒng)、電子控制動(dòng)力轉(zhuǎn)向系統(tǒng)、車(chē)輛動(dòng)力學(xué)控制系統(tǒng)、安全氣囊系統(tǒng)、主動(dòng)安全帶系統(tǒng)、電子控制自動(dòng)空調(diào)系統(tǒng)、導(dǎo)航系統(tǒng)還有GPS等。有了這些系統(tǒng)汽車(chē)響應(yīng)敏捷，使用功能強(qiáng)，可靠性高，既保證發(fā)動(dòng)機(jī)動(dòng)力又降低燃油的消耗，而且又滿(mǎn)足排放法規(guī)的標(biāo)準(zhǔn)。</p><p&

76、gt;　　汽車(chē)是現(xiàn)代人必不可少的交通工具。而電動(dòng)汽車(chē)給我們帶來(lái)無(wú)限樂(lè)趣外還能給我們勞累一天的身心得以放松。就拿自動(dòng)變速器來(lái)說(shuō)吧，汽車(chē)在行駛時(shí)，可以不踩離合器踏板，就可以實(shí)現(xiàn)自動(dòng)換檔而發(fā)動(dòng)機(jī)不會(huì)熄火，這樣有效的提高駕駛方便性減輕駕駛員的疲勞強(qiáng)度。自動(dòng)變速器主要由液力變矩器、齒輪變速器、油泵、液壓控制系統(tǒng)、電子控制系統(tǒng)、油冷卻系統(tǒng)等組成。電子控制的懸架主要是用來(lái)緩沖路面對(duì)車(chē)身的沖擊力以及減少振動(dòng)保證汽車(chē)平順性和操縱穩(wěn)定性。當(dāng)汽車(chē)行駛在不平坦

77、的道路時(shí)汽車(chē)能能根據(jù)底盤(pán)和路面高度自動(dòng)調(diào)整。當(dāng)車(chē)高比設(shè)置的高度低時(shí)，就向氣室或油缸充氣或充油。如果是相反，就放氣或?yàn)a油。從而保證汽車(chē)的水平行駛，提高行駛穩(wěn)定性?？勺兞?dòng)力轉(zhuǎn)向系統(tǒng)因能顯著改變駕駛員的工作效率和狀態(tài)，所以在電動(dòng)汽車(chē)上廣泛使用。VDC對(duì)汽車(chē)性能有著至關(guān)重要的作用它能根據(jù)需要主動(dòng)對(duì)車(chē)輪進(jìn)行制動(dòng)來(lái)改變汽車(chē)的運(yùn)動(dòng)狀態(tài)，使汽車(chē)達(dá)到最佳的行駛狀態(tài)和操縱性能，并增加了汽車(chē)的附著性，控制性和穩(wěn)定性。除了這些之外4WS、4WD的出現(xiàn)大大提高

78、了電動(dòng)汽車(chē)的價(jià)值與性能同步提升。ABS具有減少制動(dòng)距離并能保持轉(zhuǎn)向操作能力有效提高行駛方向的穩(wěn)定性同時(shí)減少輪胎的磨損。安全氣囊的出</p><p>　　智能電子技術(shù)在汽車(chē)上得以推廣使得汽車(chē)在安全行駛和其它功能更上一層樓。通過(guò)各種傳感器實(shí)現(xiàn)自動(dòng)駕駛。除些之外智能汽車(chē)裝備有多種傳感器能充分感知交通設(shè)施及環(huán)境的信息并能隨時(shí)判斷車(chē)輛及駕駛員是否處于危險(xiǎn)之中，具備自主尋路、導(dǎo)航、避撞、不停車(chē)收費(fèi)等功能。有效提高運(yùn)輸過(guò)程中的

79、安全，減少駕駛員的操縱疲勞度，提高乘客的舒適度。當(dāng)然蓄電池是電動(dòng)汽車(chē)的關(guān)鍵，電動(dòng)汽車(chē)用的蓄電池主要有：鉛酸蓄電池、鎳鎘蓄電池、鈉硫蓄電池、鈉硫蓄電池、鋰電池、鋅―空氣電池、飛輪電池、燃料電池和太陽(yáng)能電池等。在諸多種電池中，燃料電池是迄今為止最有希望解決汽車(chē)能源短缺問(wèn)題的動(dòng)力源。燃料電池具有高效無(wú)污染的特性，不同于其他蓄電池，其不需要充電，只要外部不斷地供給燃料，就能連續(xù)穩(wěn)定地發(fā)電。燃料電池汽車(chē)(FCEV)具有可與內(nèi)燃機(jī)汽車(chē)媲美的動(dòng)力性能

80、，在排放、燃油經(jīng)濟(jì)性方面明顯優(yōu)于內(nèi)燃機(jī)車(chē)輛。</p><p>　　隨著計(jì)算機(jī)和電子產(chǎn)品不斷開(kāi)級(jí)換代，電動(dòng)汽車(chē)技術(shù)也在日趨成熟與完善，使得駕駛更安全、方便、靈活、舒適?，F(xiàn)在，電動(dòng)汽車(chē)離普通消費(fèi)者的距離還很遙遠(yuǎn)，只有少數(shù)人在趕趕時(shí)髦而已。電動(dòng)汽車(chē)真正能夠與傳統(tǒng)的燃油汽車(chē)相競(jìng)爭(zhēng)，今后汽車(chē)市場(chǎng)終會(huì)被電動(dòng)汽車(chē)和智能汽車(chē)所取代。這只是時(shí)間性的問(wèn)題這一天終究會(huì)來(lái)到的。ABS、GPS、4WS、4WD以及各種新時(shí)代的電子產(chǎn)品與現(xiàn)代

81、高性能汽車(chē)默契組合、絕妙搭配，帶給我們無(wú)與倫比的精準(zhǔn)駕駛舒適性和行駛安全性。</p><p>　　以AVR 單片機(jī)為核心, 提出了一種智能探測(cè)小車(chē)的軟硬件設(shè)計(jì)方案。系統(tǒng)可以預(yù)先設(shè)定小車(chē)的行走路線, 能夠?qū)崿F(xiàn)小車(chē)與計(jì)算機(jī)之間的無(wú)線通訊, 通過(guò)超聲測(cè)物和紅外測(cè)障電路使小車(chē)安全行走。另外, 系統(tǒng)通過(guò)JTAG 接口在線調(diào)試程序。軟件設(shè)計(jì)中采用神經(jīng)網(wǎng)絡(luò)自學(xué)習(xí), 大大增強(qiáng)了小車(chē)的智能化.</p><p&g

82、t;　　執(zhí)行元件的伺服系統(tǒng)性能將決定機(jī)器人的性能?；贏VR 系列單片機(jī)，并應(yīng)用積分分離技術(shù)，設(shè)計(jì)離散PI 調(diào)節(jié)器，輸出PWM 控制信號(hào)，建立驅(qū)動(dòng)電機(jī)的速度伺服控制系統(tǒng)。使用AVR － GCC 編譯軟件開(kāi)發(fā)伺服系統(tǒng)軟件，設(shè)定速度采樣頻率為2KHz，實(shí)現(xiàn)對(duì)電機(jī)速度的實(shí)時(shí)控制。與基于51 系列單片機(jī)開(kāi)發(fā)的伺服系統(tǒng)相比，本系統(tǒng)所需的外圍電路更簡(jiǎn)單，數(shù)據(jù)處理速度更快。實(shí)現(xiàn)了機(jī)器人響應(yīng)快速，移動(dòng)平穩(wěn)。該伺服系統(tǒng)的開(kāi)發(fā)尤其適用于智能移動(dòng)機(jī)器人，還可

83、以廣泛應(yīng)用于其它智能設(shè)備和生產(chǎn)線。</p><p>　　提出了一種基于AVR 單片機(jī)Atmega8 為核心控制器的比賽機(jī)器人控制系統(tǒng),通過(guò)比賽機(jī)器人的特征分析,闡述了構(gòu)成控制系統(tǒng)所需的主控單元、電機(jī)驅(qū)動(dòng)單元、傳感檢測(cè)單元及LCD 顯示單元,其中詳細(xì)分析了以MCBL3006S 為核心的伺服電機(jī)驅(qū)動(dòng)單元,以及關(guān)系比賽機(jī)器人基本功能實(shí)現(xiàn)的循線傳感系統(tǒng)及避障傳感系統(tǒng),并給出部分程序。最后通過(guò)實(shí)踐表明,該控制系統(tǒng)開(kāi)放性好、

84、結(jié)構(gòu)簡(jiǎn)單、編程容易、智能并高效。</p><p>　　智能車(chē)的避障規(guī)則，通過(guò)對(duì)紅外傳感器的信息進(jìn)行采集,使用二極管D1 發(fā)射紅外線，二極管D2 接收紅外信號(hào)。紅外線發(fā)射部分不設(shè)專(zhuān)門(mén)的信號(hào)發(fā)生電路，直接從單片機(jī)實(shí)現(xiàn)時(shí)鐘頻率，既簡(jiǎn)化了線路和調(diào)試工作，又能使電路的穩(wěn)定性和抗干擾能力大大加強(qiáng)。經(jīng)實(shí)驗(yàn)驗(yàn)證，該系統(tǒng)運(yùn)行可靠，達(dá)到了設(shè)計(jì)要求。</p><p>　　介紹一種基于CCD 攝像頭的路徑識(shí)別的智

85、能車(chē)控制系統(tǒng), 設(shè)計(jì)了硬件結(jié)構(gòu)與方案, 提出了轉(zhuǎn)向機(jī)構(gòu)的控制策略, 該智能車(chē)能準(zhǔn)確實(shí)現(xiàn)自主尋跡, 具備抗干擾性極強(qiáng), 穩(wěn)態(tài)誤差小等特點(diǎn)。</p><p>　　智能車(chē)系統(tǒng)，包括傳感器信息采集與處理、電機(jī)驅(qū)動(dòng)、控制算法及控制策略等方面。采用激光傳感器采集道路信息并反饋給單片機(jī)控制系統(tǒng)，通過(guò)軟件進(jìn)行相關(guān)分析處理，通過(guò)速度反饋和PID 算法控制舵機(jī)轉(zhuǎn)向和智能車(chē)速度。通過(guò)實(shí)際運(yùn)行驗(yàn)證，本方法使智能車(chē)運(yùn)行穩(wěn)定、可靠,其平均速

86、度達(dá)到2.6m/s，得到比較理想的效果。</p><p>　　為了綜合利用控制、模式識(shí)別、傳感器技術(shù)、汽車(chē)電子、電氣、計(jì)算機(jī)、機(jī)械等專(zhuān)業(yè)領(lǐng)域知識(shí), 設(shè)計(jì)實(shí)現(xiàn)了一個(gè)基于PID 控制算法, CCD 檢測(cè)系統(tǒng), 并采用H C9SDG128 單片機(jī)作為主控芯片的智能車(chē)系統(tǒng)。該系統(tǒng)使用Codewar rio r IDE 集成開(kāi)發(fā)環(huán)境作為程序設(shè)計(jì)的基本軟件平臺(tái), 能利用攝像頭自動(dòng)識(shí)別路況, 進(jìn)行圖像處理, 進(jìn)而調(diào)整方向沿預(yù)定

87、軌道前行, 具有很強(qiáng)的可靠性、穩(wěn)定性、快速性、擴(kuò)展性。</p><p>　　以“飛思卡爾”杯智能車(chē)大賽為研究背景，開(kāi)發(fā)了一種智能循跡小車(chē)。該小車(chē)采用光電傳感器檢測(cè)路徑，獲得賽道信息，求出小車(chē)與黑線間的偏差，采用模糊控制對(duì)小車(chē)的速度進(jìn)行控制，使小車(chē)能夠自動(dòng)跟隨直道和彎道。實(shí)踐表明，采用模糊控制的智能小車(chē)在路徑識(shí)別的精準(zhǔn)度，穩(wěn)定性，及速度控制上具有明顯優(yōu)勢(shì)。</p><p>　　本世紀(jì)初期，在

88、計(jì)算機(jī)和信息革命的影響下，汽車(chē)經(jīng)歷了性能和與駕駛者之間的互動(dòng)方面最富戲劇性的變革。</p><p>　　1908年，亨利福特T型車(chē)的出現(xiàn)體現(xiàn)了汽車(chē)設(shè)計(jì)上的重大突破。它不僅開(kāi)創(chuàng)了輕松更換零件和大量生產(chǎn)的先河，而且其“用戶(hù)友好”的運(yùn)作方式，讓任何人都可以輕松駕駛。近90年來(lái)，類(lèi)似于福特T型車(chē)的簡(jiǎn)單汽車(chē)越來(lái)越少，汽車(chē)迅速成為了一種復(fù)雜的“移動(dòng)電腦”，扮演著領(lǐng)航者，護(hù)航者，甚至第二司機(jī)的角色。這些新特性不僅改變了我們的駕

89、駛方式，還提高了運(yùn)輸服務(wù)質(zhì)量和挽救生命的能力，并對(duì)美國(guó)工業(yè)的競(jìng)爭(zhēng)力提供了支持。</p><p>　　然而，智能車(chē)的表現(xiàn)不僅如此。相反的，使車(chē)輛更加智能的這些組件，如新信息，安全性和自動(dòng)化技術(shù)，是作為零配件抵達(dá)市場(chǎng)的，或作為可選設(shè)備，或作為售后服務(wù)的特殊配件。為了提高司機(jī)的安全性，這些技術(shù)不斷發(fā)展并上市銷(xiāo)售。但是個(gè)別的技術(shù)還沒(méi)有得到整合，不能創(chuàng)造出與司機(jī)高度協(xié)作的完全智能的車(chē)輛。</p><p&

90、gt;　　汽車(chē)行業(yè)已經(jīng)意識(shí)到并解決了潛在的不協(xié)調(diào)技術(shù)的大量涌入問(wèn)題。但他們的進(jìn)步受到技術(shù)和經(jīng)濟(jì)障礙，不確定的消費(fèi)者喜好，不完善的標(biāo)準(zhǔn)和準(zhǔn)則的阻礙。此外，無(wú)論是傳統(tǒng)的汽車(chē)制造商或是政府監(jiān)管機(jī)構(gòu)（除非安全問(wèn)題非常明顯）都不能控制售后的產(chǎn)品的使用，特別是在卡車(chē)和公共汽車(chē)的使用方面。然而，還沒(méi)有一個(gè)“以人為本”的智能車(chē)輛試圖整合和協(xié)調(diào)各種技術(shù)以解決問(wèn)題。我們也許不僅僅會(huì)失去實(shí)現(xiàn)新的車(chē)載技術(shù)的機(jī)遇，甚至可能會(huì)在無(wú)意中降低行車(chē)的安全性和性能。<

91、;/p><p>　　意識(shí)到智能車(chē)輛的重要性和汽車(chē)設(shè)計(jì)中人為因素所產(chǎn)生的潛在危險(xiǎn)之后，交通部于1997年啟動(dòng)智能車(chē)輛倡議（IVI）。這一舉措旨在加快汽車(chē)系統(tǒng)的發(fā)展和集成，用以幫助汽車(chē)，卡車(chē)及巴士司機(jī)更安全和有效地操作。</p><p>　　20世紀(jì)80年代的電視連續(xù)劇“霹靂游俠”功能的智能車(chē)輛可以跨越頗高的大廈，似乎駕駛超音速本身，對(duì)壞人間諜，并有英文用詞和管家的個(gè)性。這款車(chē)不僅是聰明，但自作聰

92、明。雖然在現(xiàn)實(shí)世界中的智能車(chē)輛將無(wú)法飛越站在交通，他們將有強(qiáng)大的能力。正如所設(shè)想的國(guó)際疫苗研究所，智能車(chē)輛將能夠提供路線指示，感覺(jué)對(duì)象，警告即將發(fā)生的碰撞司機(jī)，自動(dòng)信號(hào)在緊急情況下幫助司機(jī)保持警覺(jué)，并可能最終能夠接管駕駛。 </p><p>　　信息和機(jī)動(dòng)車(chē)輛的電腦為基礎(chǔ)的技術(shù)，然而，是不是新的用途。將廣泛的汽車(chē)電腦開(kāi)始了旨在提高車(chē)輛運(yùn)行和駕駛員舒適性技術(shù)的20世紀(jì)80年代。這些技術(shù)包括電子控制燃油噴射發(fā)動(dòng)機(jī)的性

93、能，特別是減少汽車(chē)排放，提高燃油經(jīng)濟(jì)性，防抱死制動(dòng)系統(tǒng)，以幫助司機(jī)保持在濕滑路面控制，巡航控制系統(tǒng)以減輕司機(jī)的駕駛很長(zhǎng)一段乏味。而這些技術(shù)主要是加強(qiáng)對(duì)車(chē)輛，在車(chē)輛技術(shù)的最新波，其中最感興趣的是IVI的能力的目的，是智能交通，旨在加強(qiáng)對(duì)駕駛員的能力的系統(tǒng)。這些系統(tǒng)包括預(yù)警和信息，駕駛輔助和自動(dòng)化技術(shù)。 </p><p>　　正如人們具有不同的專(zhuān)業(yè)能力，不同類(lèi)型和層次的車(chē)載智能車(chē)輛技術(shù)賦予“情報(bào)”，以補(bǔ)充該驅(qū)動(dòng)程序。

94、駕駛員信息系統(tǒng)，擴(kuò)大了駕駛員的路線和地點(diǎn)的知識(shí)。預(yù)警系統(tǒng)，如防撞技術(shù)，提高駕駛員的感知能力發(fā)生了什么事在周?chē)h(huán)境的。自動(dòng)化和驅(qū)動(dòng)技術(shù)援助和模擬駕駛者的思想和行動(dòng)，以實(shí)際操作或在緊急情況下，長(zhǎng)時(shí)間的車(chē)輛暫時(shí)的。 </p><p>　　但是，在智能車(chē)輛將擴(kuò)大司機(jī)的能力，它也可能會(huì)增加司機(jī)的傳統(tǒng)角色。特別是，在新車(chē)內(nèi)的技術(shù)中，人的作用擴(kuò)大從感覺(jué)運(yùn)動(dòng)技能，寫(xiě)道托馬斯謝里登，教授誰(shuí)負(fù)責(zé)的人機(jī)系統(tǒng)實(shí)驗(yàn)室在美國(guó)麻省理工學(xué)院（M

95、IT），“這一規(guī)劃，程序員，在自動(dòng)化，診斷者...，監(jiān)控學(xué)習(xí)者和管理者。</p><p>　　ITS的研究顯示出將在智能車(chē)輛中應(yīng)用的許多技術(shù)的好處可行性：</p><p>　　路線引導(dǎo)系統(tǒng)將幫助司機(jī)更好的行駛在不熟悉的街道或找到到達(dá)目的地最快的路線。1992年和1993年，在交通部主辦的奧蘭多TravTek實(shí)地測(cè)試中顯示，配備了路線引導(dǎo)系統(tǒng)的游客駕駛汽車(chē)減少了30%的車(chē)輛轉(zhuǎn)錯(cuò)彎的問(wèn)題。與使

96、用紙質(zhì)地圖的游客相比，節(jié)省了20%的時(shí)間。</p><p>　　防撞系統(tǒng)可以加強(qiáng)交通安全規(guī)范，完全防止交通事故的發(fā)生。據(jù)研究表明，如果司機(jī)能多半秒鐘反應(yīng)時(shí)間，就可以避免60%的岔路交通事故和30%的迎面相撞，而75%的車(chē)輛事故是由司機(jī)走神造成的。國(guó)家公路交通安全管理局（NHTSA）估計(jì)每年美國(guó)應(yīng)用于這三類(lèi)的防撞系統(tǒng)能夠避免110萬(wàn)次交通事故，占總交通事故數(shù)的17%。而這能夠挽救17,500人的生命（安全帶和氣囊約

97、挽救10,500人）并挽回260億美元的損失。其他的安全設(shè)施正在測(cè)試中，包括自動(dòng)撞擊告知系統(tǒng)，當(dāng)一輛汽車(chē)的安全氣囊彈出時(shí)，該系統(tǒng)會(huì)自動(dòng)發(fā)出求救信號(hào)，而昏睡司機(jī)警告系統(tǒng)可以防止在汽車(chē)行駛過(guò)程中司機(jī)昏昏欲睡。</p><p>　　車(chē)內(nèi)自動(dòng)化系統(tǒng)可以在緊急情況下接管駕駛，或在允許長(zhǎng)時(shí)間行駛的情況下自動(dòng)駕駛。1996年，國(guó)家公路交通安全管理局開(kāi)始實(shí)地測(cè)試智能巡航控制系統(tǒng)——該系統(tǒng)能夠自動(dòng)調(diào)整車(chē)輛行駛速度，與前方車(chē)輛保持安