【正文】 docum ent s and legal pr oof , check t r af fic violat ions, t r affic accident s, t he f ugit ive suspect suspect ed vehicles and t heft t han t o wor k, f urt her t ight car, dr iving m anagem ent business f or m alit ies r eview pr ocedures. . Tr uck dr iver inf or m at ion m anagem ent plat f orm . Mot or vehicles and t r af fic police depar t m ent s, St at e t r anspor t aut hor it y t o f ur t her clar if y t he Division of labour , im plem ent ation r esponsibilt y, st r engt hen our colabor ation and m anagement oget her , r einf orcing t he m anagem ent of dr iver s on which st r ongly synt hetic war f ar e and inf or m at ion war f ar e. 3 st rict ly im plem ent ed. Fr om M ay 1 up, a is im plem ent ed plex r oad and bad weat her dr iving exam, cur ently DM V is ur ged cont r act or s par t y in t r easur es dr iving school incr eased sim ulation Highway, and cont inuous ur gent det our s, and snow days, and wet sliding r oad, and bur st sit uat ion disposal, subj ect s I I f ield t o dr iving exam pr oject, is expect ed 籃球賽計時計分器 摘 要 單片機(jī)自 20 世紀(jì) 70 年 代問世以來，以極其高的性價比受到人們的重視和關(guān)注，所以應(yīng)用很廣， 發(fā)展很快。 由 于單片機(jī)的集成度高，功能強(qiáng)，通用性好，特別是它具有體積小 、 重量輕 、 能耗低 、 價格便宜 、 可靠性高 、 抗干擾能力強(qiáng)和使用方便等獨特的優(yōu)點，使單片機(jī)迅速得到了推廣應(yīng)用 。 目前已經(jīng)成為測量控制應(yīng)用系統(tǒng)中的優(yōu)選機(jī)種和新電子產(chǎn)品的關(guān)鍵部位 ， 許多用單片機(jī)做控制的球賽計時計分系統(tǒng)也應(yīng)運而生， 如 ： 用單片機(jī)控制液晶顯示(LCD)計時計分器，用單片機(jī)控制 LED 七段顯示器計時計分器等。 籃球計時計分器以單片機(jī)為 核 心，由計時器 、 計分器 、 綜合控制器等組成。 系統(tǒng)采用模塊化設(shè)計，主體分為計時顯示模塊、計分顯示模塊、定時報警、按鍵控制鍵盤模塊。每個模塊的程序結(jié)構(gòu)簡單 、 任務(wù)明確 ， 易于編寫 、調(diào)試和修改。程序可讀性好，對程序的修改可局部進(jìn)行，其他部分可保持不變。編程后利用 Keil C51 軟件來進(jìn)行編譯，再將生成的 HEX 文件裝入芯片中，采用 Proteus 軟件 仿真，檢驗功能是否能夠正常實現(xiàn)，隨后可用 Protel99畫出硬件電路圖。本設(shè)計中系統(tǒng)硬件電路主要由以下幾個部分組成：單片機(jī)AT89C5 計時電路 、 計分電路 、 報警電路和按鍵開關(guān) 。 本次設(shè)計用由 AT89C51 編程控制 LED 七段數(shù)碼管作顯示的球賽計時計分系統(tǒng)。該系統(tǒng)具有賽程定時設(shè)置 、 賽程時間暫停 、 及時刷新甲 乙雙方的成績以及賽后成績暫存等功能。它具有價格低廉、性能穩(wěn)定、操作方便并且易于攜帶等特點，廣泛適合各類學(xué)?；蛘咝⌒蛨F(tuán)體作為賽程計時計分。 關(guān)鍵詞 ： 單片機(jī)，計時，計分，顯示器，接口 evaluat ion of scient if ic developm ent . Natur e secur it y t ype natur e securit y is t o m aint enance people of healt h value f or t arget , t hrough st rengthening secur it y based m anagement , and r isk m anagement , and equipm ent m anagement and t echnology super vision, ensur e pr oduction in t he people, and r eal, and syst em, and system, elem ent s secur it y reliable, and har m ony unif ied, f ul cont rol var ious against f actor s, achieved t hought no slack, and management no em pty document , and equipm ent no hidden, and syst em no blocked, and unit zer o nonst opped. Qualit y and ef f iciencyqualit y benef it is t o adhere t o t he enter prise survival, pr ofit and developm ent business t rut h, adher e t o t he all act ivit y is econom ic activit y, all cost s can be cont roled, m oney should not be wast ed m anagement philosophy, m anagement analysis, t o im prove management qualit y, im prove cost contr ol capacit y and mar ket petit iveness. Innovation of science and t echnology science and t echnology innovation is t o play t he r ole of science and t echnology as t he pr im ary pr oduct ive f orce, act ive use of new t echnologies, new m at er ials, new pr oces ses, new equipm ent , incr ease invest ment in science and t echnology, st rengthening scientif ic and t echnological t raining, speeding up t ransfor ming scient if ic and t echnological achievement s, f or ming a num ber of pr opr ietar y technology, enhancing cor e petit ivenes s. Resour cesaving the resources saving ent erpr ise was t o r educe coal consumpt ion, wat er consum ption, elect ricit y at t he cor e, enhance t he oper ation of lean m anagem ent t o r ealize low consum pt ion, high ef ficiency, r educe pr oduction costs. Second is t o st rengthen t he business, f inancial, m ater ial, inf orm at ion and t he opt imizat ion of or ganizat ion and management, saving t he int er nal t r ansact ion costs. Har m onious development of harm onious development is t o const ruct a for eign envir onment f or development . XI NG r ef ers t o t he int er nal secur it y f ir m and int er nal m anagement of t he int ernal m anagem ent m easur es ar e ef f ect ive, har monious. For eign cur ency m eans Enter prise coor dinat ing development of homeopathy, well, get along wit h t he neighbor s bet ter. (B) XX 2021 f ive enter prises building int r insic saf et y power pany goals ar e: unplanned outage 0 t im es. Class of disor ders 0, 0 is equivalent f orced out age r ate. No per sonal inj ur y accident , m ater ial and equipm ent accident s do not occur, no f ir e, no envir onmental polut ion accident . Enter prise int egr at ed t o achieve zer o cases of violat ion, zer o accident s, zero. Qualit y goal is: when gener at ing capacit y ≥ 7. 5 bilon kilowat t , sales of over 7. 11 bilon kWh, t ot al pr of it s of ≥ m ilon Yuan, . . BFS++、 PI、 M IS、 SCM Inf orm at ion systems inf r ast ruct ure, f uly int egr at ed inf or mat ion syst em t o r ealize inf or m ation r esources shar ing。 t o expand the br eadth and dept h of t he por tal syst em , inf or mat ion syst em of Enter prise M anagem ent Assistant r ole t o play。 t o im pr ove t he dayto day oper ation and m aint enance oper at ion r ecord of pr omoting causes and t r ansf er syst em 。 t o st r engt hen t he t r aining摘要 super vision in lar ge and m edium goods vehicle. A is est ablished lar ge vehicles and sm all vehicles classif icat ion management of m otor vehicle t est m ode, incr eased m edium van car, and danger ous goods t r ansport car, and school car t est pr oject。 I I is est ablished m otor vehicle t est r egulat or y plat f or m, achieved m ot or vehicle t est f ul pr ocess video, and data r emot e r egulat ory。 t hree is st rict ly m ot or vehicle ident if icat ion m anagement , equipped wit h unif ied of ident if icat ion equipm ent and t ool, using mobile ident if icat ion Ter minal, and law enf or cement r ecor ds inst r ument, t echnolog