毕业设计论文_基于at89c51单片机的转速测量仪的设计

毕业设计论文_基于at89c51单片机的转速测量仪的设计内容摘要：

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DM V f ul play t o t he fir st line of Defense positon contr ol, investigating cheating, f ake identif ication and r obber y suspect vehicles t hr ough oper ational wor k, and car ef uly examine t he document s and legal pr oof, check t raffic violat ions, t r af fic accidents, t he f ugit ive suspect suspect ed vehicles and t hef t han t o wor k, f urt her t ight car, dr iving m anagem ent business f orm alit ies r eview procedures. . Tr uck dr iver inf orm ation managem ent plat f orm. Mot or vehicles and t raff ic police depar tments, St at e t r ansport aut hor it y t o f ur ther clarif y t he Division of labour , im plem ent ation r esponsibilt y, st rengt hen our colabor at ion and m anagem ent t ogether , r einf orcing t he m anagem ent of drivers on which str ongly synt hetic war fare and inf orm ation war fare. 3 st rictly im plem ent ed. Fr om M ay 1 up, a is im plement ed plex r oad and bad weather driving exam, cur rently DM V is ur ged cont ract or s par ty in t reasures dr iving school incr eased sim ulation Highway, and cont inuous r gent det our s, and snow days, and wet sliding r oad, and bur st situation disposal, subj ects I I f ield t o dr iving exam project , is expected 1 序 言 近年来随着计算机在社会领域的渗透， 在电子技术飞速发展的今天， 单片机的应用正在不断地走向深入。 单片机技术在自动控制领域有着十分广泛的应用，如汽车、航空、电话、传真、视频等。 很多行业涉及到自动控制的情况下涉及到单片机技术。 电子产品的人性化和智能化已经非常成熟，单片机就是一个微型中央处理器，通过编程即能完成很多智能化的工作 ，因此它的出 现给电子技术智能化和微型化起到了很大的推动作用。 随着人们生活水平的提高，社会经济的发展，人们开始注重身体素质的提高。 臂如在火车 、汽车、工厂许多地方都用到电机的驱动，当然也要精确的知道它的转速，本设计就是测试电机的转速。 智能化转速测量可以对电机的转速进行测量，电机在运行的过程中，需要对其平稳性进行监测，适时对转速的测量有效地可以反映电机的状况。 本系统主要由传感器，单片机 AT89C51 构成。 可以对大范围转速进行测量，测量的转速精度高，还可以和 PC 机时时通信，实现对电机转速的测量。 单片机的英文名称是 Micro Controller unit,缩写为 MCU，又称为微控制器，它是一种面向控制的大规模集成电路芯片。 它具有功能强、体积小、可靠性高、应用简单灵活，因而使用非常广泛，有力地推动各行业的技术发展和更新换代。 本文首先在第二章绪论介绍了此系统的功能、技术指标以及主要内容等；在第三章论述了总体设计过程 ,确定了技术指标及器件的选择；第四章着重描述了系统硬件电路设计、硬件设计框图及所使用的各种芯片功能与特性 ； 在第五章中重点剖析了软件设计的过程；最后在第六章中具体论述单片机、电平转换电路、通信的处理及调试。 由 于本人水平有限，加之时间仓促，论文中难免会有错误和不足之外，不够理想、许多方面还需要继续完善和改进。 在这里恳请指导老师批评指正。 在此特别感谢我的指导老师张亚超老师的大力指导。 evaluat ion of scient if ic development. Nat ur e secur ity t ype nat ur e secur ity is t o maintenance people of healt h value f or t ar get, thr ough st rengt hening secur ity based management, and r is k m anagement , and equipment management and t echnology super vison, ensur e production in t he people, and r eal, and syst em, and syst em , element s ecur ity r eliable, and harmony unif ied, f ul cont rol various against f actors, achieved thought no slack, and managem ent no empty document , and equipment no hidden, and system no blocked, and unit zero nonst oped. Qualit y and ef ficiency qualit y benefit is t o adhere to t he enter pr ise sur vival, profit and development business t ruth, adher e to t he all activit y is economic activit y, all costs can be contr oled, money should not be wast ed management philosophy, m anagement analysis, t o im prove m anagement qualit y, im prove cost contr ol capacit y and m ar ket pet it iveness. I novation of science and t echnol gy science and t echnology innovat ion is t o play the r ole of science and t echnology as t he pr imar y pr oduct ive f orce, act ive use of new t echnologies, new m at er ials, new processes, new equipment , increase investm ent in science and t echnology, str engthening scient ifc and technological t r aining, speeding up t r ansf orming scientif ic and t echnological achievement s, f orming a number of pr opr iet ary technology, enhancing core pet itveness. Resour ce savingt he resources saving ent erprise was t o reduce coal consumption, wat er consumpt ion, elect ricit y at t he core, enhance t he operation of lean management to r ealize low consumption, high eff iciency, r educe product ion cost s. Second is t o st rengt hen t he business, f inancial, material, inf or mation and t he opt imizat ion of or ganizat ion and management, saving t he inter nal t ransaction costs. Harm onious development of har monious development is to constr uct a f oreign envir onm ent f or development . XING refer s t o the internal securit y fir m and int er nal m anagement of t he internal m anagement measures ar e ef fect ive, harmonious. Foreign cur rency m eans Enterprise cor dinating development of homeopathy, well, get along wit h t he neighbors better. ( B) XX 2020 f ive ent er pr ises building int rinsic safety power pany goals ar e: unplanned outage 0 t imes. Class of disor ders 0, 0 is equivalent forced out age r ate. No personal inj ury accident , m at er ial and equipment accident s do not occur, no fir e, no envir onmental polut ion accident . Ent er prise integrated to achieve zer o cases of violation, zero accidents, zer o. Qualit y goal is: when generating capacit y ≥ 7. 5 bilon kilowat t, sales of over bilon kWh, t otal pr of it s of ≥ 306. 6 m ilon Yuan, . . BFS+、 PI、 MIS、 SCM Infor mat ion systems inf r astr uctur e, fuly int egr at ed inf ormation syst em t o r ealize infor mat io。