【正文】 ty research ultimate purpose。ret Ranging in front of singlechip termination circuit input port, single chip implementation of the above procedure, the port in a 40kHz pulze output signal, after amplification transistor T, the drive to launch the first ultrasonic UCM40T, issued 40kHz ultrasonic pulse, and the continued launch of the right and the left side of the circuit, respectively, then input port and , the working principle and circuit in front of the same Reception and processing of ultrasonicUsed to receive the first launch of the first pair UCM40R, the ultrasonic pulse modulation signal into an alternating voltage, the opamp amplification IC1A and after polarization IC1B to is locked loop with audio decoder chip LM567, internal voltagecontrolled oscillator center frequency of f0=1/, capacitor C4 determine their target in the launch of the carrier frequency on the LM567 input signal is greater than 25Mv, the output from the high jump 8 feet into a lowlevel, as interrupt request signals to the singlechip in front of singlechip termination circuit port INT0 interrupt the highest priority, right or left location of the output circuit with output gete IC3A access INT1 port singlechip, while singlechip and received input IC3A, interrupted by the process to identify the source code is as follows: receivel:push pswpush ace中原工學(xué)院畢業(yè)設(shè)計(jì)（論文）譯文cir ex1: related external interrupt 1jnb , right。calculate the tome difference MOV 31H, A。related external interrupt 0 MOV R7, TH0。nop。因此，它不僅可用于移動(dòng)機(jī)器人，還可以用在其他檢測系統(tǒng)中。測量過零時(shí)間與回波振幅。MOV A,R7 SUBB A,3CH MOV 30H,A SETB EX0。部分源程序如下： receive1：push pswpush accclr ex1；關(guān)中斷源1jnb ，right。電路的原理如圖1所示。測量脈沖到達(dá)時(shí)間的傳統(tǒng)方法是以擁有固定參數(shù)的接收信號(hào)開端為基礎(chǔ)的。其主要有三種測距方法：（1）相位檢測法，相位檢測法雖然精度高，但檢測范圍有限；（2）聲波幅值檢測法，聲波幅值檢測法易受反射波的影響；（3）渡越時(shí)間檢測法，渡越時(shí)間檢測法的工作方式簡單，直觀，在硬件控制和軟件設(shè)計(jì)上都非常容易實(shí)現(xiàn)。首先測出超聲波從發(fā)射到遇到障礙物返回所經(jīng)歷的時(shí)間，再乘以超聲波的速度就得到二倍的聲源與障礙物之間的距離。能檢測前進(jìn)和倒車方向障礙物距離, 通過后視鏡內(nèi)置的中原工學(xué)院畢業(yè)設(shè)計(jì)（論文）譯文顯示單元顯示距離和方位, 發(fā)出一定的聲響, 起到提示和警戒的作用。其較早的產(chǎn)品是用蜂鳴器報(bào)警，蜂鳴聲越急，表示車輛離障礙物越近。它安裝在汽車上，能探測企圖接近車身的行人、車輛或周圍障礙物。智能交通系統(tǒng)ITS是目前世界上交通運(yùn)輸科學(xué)技術(shù)的前沿技術(shù)，它在充分發(fā)揮現(xiàn)有基礎(chǔ)設(shè)施的潛力，提高運(yùn)輸效率，保障交通安全，緩解交通賭塞，改善城市環(huán)境等方面的卓越效能，已得到各國政府的廣泛關(guān)注。第三篇：外文翻譯中原工學(xué)院畢業(yè)設(shè)計(jì)（論文）譯文超聲測距系統(tǒng)設(shè)計(jì)原文出處：傳感器文摘 布拉福德：1993年第13頁摘要：超聲測距系統(tǒng)技校在工業(yè)場車輛導(dǎo)航水聲工程等領(lǐng)域都具有了廣泛的應(yīng)用價(jià)值，目前已應(yīng)用于物理測量，機(jī)器人自動(dòng)導(dǎo)航以及空氣中與水下的目標(biāo)探測、識(shí)別定位等場合，因此，深入研究超聲的探測理論和方法具有重要的實(shí)踐意義，為了進(jìn)一步提高測量的精確度，滿足工程人員對(duì)測量精度測距量程和測距儀使用的要求，本文研制了一套基于單片機(jī)的使拱式超聲測距系統(tǒng)。由于德爾菲專家的意見，約有84％的淘汰型規(guī)則和優(yōu)化周期時(shí)間的87％被接受。例如一個(gè)階段選型的模糊規(guī)則如下所述：“如果一個(gè)路口的類型是四的方式，平均車輛擁堵低，平均行人擁堵是中等，然后相類型是簡單的兩階段”。這些規(guī)則的模糊變量是天氣條件，時(shí)間，每天平均車輛擁堵情況。本節(jié)說明在這項(xiàng)工作中的應(yīng)用技術(shù)包括語義網(wǎng)絡(luò)技術(shù)，特別本體和模糊本體。這種新的辦法適用于智能代理使用知識(shí)決策模糊?！氨倔w論是一個(gè)正式的、明確的一個(gè)共享的概念化的規(guī)范。專家對(duì)本體論進(jìn)行手動(dòng)的開發(fā)和評(píng)估。本文安排如下：第2部分?jǐn)⑹鋈绾谓⒔煌Ｐ?，預(yù)測交通情況和控制交通。由于低效率的交通控制，汽車在城市交通中都經(jīng)歷過長時(shí)間的行進(jìn)。而計(jì)算機(jī)技術(shù)怎樣 與實(shí)際應(yīng)用更有效的結(jié)合并有效的發(fā)揮其作用是科學(xué)界最熱門的話題，也是當(dāng)今計(jì)算機(jī)應(yīng)用中空前活躍的領(lǐng)域。因此，一個(gè)好的交通燈控制系統(tǒng)，將給道路擁擠，違章控制等方面給予技術(shù)革新。由于道路使用者的不斷增加，現(xiàn)有資源和基礎(chǔ)設(shè)施有限，智能交通控制將成為一個(gè)非常重要的課題。在我們的方法中，聚類算法與道路使用者的價(jià)值函數(shù)是用來確定每個(gè)交通燈的最優(yōu)決策的，這項(xiàng)決定是基于所有道路使用者站在交通路口累積投票，通過估計(jì)每輛車的好處(或收益)來確定綠燈時(shí)間增益值與總時(shí)間是有差異的，它希望在它往返的時(shí)候等待，如果燈是紅色，或者燈是綠色。The times is a automation times nowadays,traffic light waits for much the industey equipment to go hand in hand with the puter under the control ,a good traffic light controls system,will give road aspect such as being crowded,controlling against rules to give a technical the fact that the largescale integrated circuit and the puter art promptness develop,as well as artificial intelligence broad in the field of control technique applies,intelligence equipment has had very big development,the main current being that modern science and technology develops main body of a book is designed having introduccd a intelligence traffic light function being intelligence traffic light navar’s turn to be able to e true has：The crossing carries out supervisory control on four main traffic of some downtown area。把本系統(tǒng)的性能與其他類似的系統(tǒng)性能進(jìn)行比較。這種能力將提高有關(guān)性能的決定和其他非智能系統(tǒng)的功能特點(diǎn)。第2節(jié)中，我們將簡要地解釋了在這項(xiàng)工作中運(yùn)用的技術(shù)包括semanTIC網(wǎng)絡(luò)技術(shù)，智能代理技術(shù)和交通的回地面光控制方法。使電腦與人更好的合作。日期和時(shí)間也是在交通專家的知識(shí)的基礎(chǔ)上以模糊變量形式預(yù)先定義的。在此步驟結(jié)束時(shí)，應(yīng)該對(duì)交通燈邏輯控制的項(xiàng)目的有效性進(jìn)行評(píng)估。在這個(gè)過程中進(jìn)行了兩項(xiàng)活動(dòng)，包括檢查的要求和能力的問題，并在目標(biāo)應(yīng)用環(huán)境測試本體。而設(shè)計(jì)研制箱涵排水疏通移動(dòng)機(jī)器人的自動(dòng)控制系統(tǒng)，保證機(jī)器人在箱涵中自由排污疏通，是箱涵排水系統(tǒng)疏通機(jī)器人的設(shè)計(jì)研制的核心部分，控制系統(tǒng)核心部分就是超聲波測儀的研制。從傳統(tǒng)上說，汽車的安全可以分為兩個(gè)主要研究方向:一是主動(dòng)式安全技術(shù)，即防止事故的發(fā)生，該種方式是目前汽車安全研究的最終目的。對(duì)于公路交通事故的分析表明，80%以上的車禍?zhǔn)掠捎隈{駛員反應(yīng)不及所引起的，超過65%的車輛相撞屬于追尾相撞，其余則屬于側(cè)面相撞。目前市場上還出現(xiàn)了具有語音報(bào)警功能的產(chǎn)品。為了以超聲波作為檢測手段，必須產(chǎn)生超生波和接收超聲波。由于超聲波指向性強(qiáng)，能量消耗緩慢，在介質(zhì)中傳播距離遠(yuǎn)，因而超聲波可以用于距離的測量。在移動(dòng)車輛中應(yīng)用的超聲波傳感器，是利用超聲波在空氣中的定向傳播和固體反射特性（縱波），通過接收自身發(fā)射的超聲波反射信號(hào)，根據(jù)超聲波發(fā)出及回波接收的時(shí)間差和傳播速度，計(jì)算傳播距離，從而得到障礙物到車輛的距離。進(jìn)一步說，從脈沖起始點(diǎn)到剛好超過界限之間的時(shí)間段隨著脈沖的強(qiáng)度而改變。工作原理和前方測距電路相同。當(dāng)收到超聲波反射波時(shí)，接受電路輸出端產(chǎn)生一個(gè)負(fù)跳變，在INT0或INT1端產(chǎn)生一個(gè)中斷請(qǐng)求信號(hào)，單片機(jī)響應(yīng)外部中斷請(qǐng)求，執(zhí)行外部中斷服務(wù)子程序，讀取時(shí)間差，計(jì)算距離。第三步：檢測兩種回波的振幅與過零時(shí)間。中原工學(xué)院畢業(yè)設(shè)計(jì)（論文）譯文超聲波測距系統(tǒng)的軟件設(shè)計(jì)軟件分為倆部分，主程序和中斷服務(wù)程序。second, it is passive safety technique, namely the occupant protection after the automotive safety field passive safety more research, mainly from the airbag, ABS(antilock brakes)and suspension from the aspects such as to ensure safety of personnel the economic and safety two ways, these passive safety measures is the accident of vehicle and personnel moments protection, with great limitations, thus vehicle active safety research is particularly important, leads to a of this study is based on single chip ultrasonic ranging system is a kind of can advance to the driver issued audiovisual speech signal detection is installed in cars that can detect trying to approach the body of a car pedestrians and vehicles or around obstacles, Can send to the driver and crew imminent danger ahead of the signal, prompting a crash drivers take emergency measures to cope with special danger, avoid the question design significanceAlong with the development of modern society industrialization process, car this traffic tools are used for more and more people, but any problem has obvious that along with the increase in vehicles, traffic accident, which led to the frequent occurrence of casualties and property losses number highway traffic accident analysis showed that more than 80% of the accident due to the driver reaction inferior things, caused more than 65% of vehicle collision, the rest belongs to tracing cauda colli