【正文】 價比受到人們的重視和關注，所以應用很廣， 發(fā)展很快。 目前已經(jīng)成為測量控制應用系統(tǒng)中的優(yōu)選機種和新電子產(chǎn)品的關鍵部位 ， 許多用單片機做控制的球賽計時計分系統(tǒng)也應運而生， 如 ： 用單片機控制液晶顯示(LCD)計時計分器，用單片機控制 LED 七段顯示器計時計分器等。 系統(tǒng)采用模塊化設計，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。程序可讀性好，對程序的修改可局部進行，其他部分可保持不變。本設計中系統(tǒng)硬件電路主要由以下幾個部分組成：單片機AT89C5 計時電路 、 計分電路 、 報警電路和按鍵開關 。該系統(tǒng)具有賽程定時設置 、 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。 關鍵詞 ： 單片機，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 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 。 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 his year J anuary June, vehicles m anagement sect ion and license ar chives m anagem ent section t ot al accept ed t he m otor vehicle r egistr ation business 42,543 car t im es, which r egist ered r egistr ation 6, 905 car t im es, and t ransfer r egist r at ion 3, 592 car t im es, and change r egist r at ion 1033 car t im es, and m ort gage r egistr ation 696 car t im es, and cancellat ion r egistr ation 187 car t im es, and int o business 980 car tim es, and Ar chives cor r ect ions 81 pieces t im es, and issued t est qualif ied logo 25, 429 car t im es, and ot her vehicles business 3, 640 car t im es。 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 st r engt hen t he t r aining河南科技大學本科畢業(yè)設計（論文） 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。 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 ec hnology ident if ication m eans. As t o 20XX year s J une 20 st atewide m ot or vehicle keep volum e f or 567,408 car, and last year ear lier t han growt h 75,814 car, gr owth 13. 36%。 super vision Survey Section r elies on m ot or vehic le det ection r em ot e issued t est qualif ied logo sof twar e plat f or m supervision m ot or vehicle t est, and ident if ication sit uat ion 7418l iangci, invest igat ion m ot or vehicle except ion business 30 car t imes, his par ds business war ning 244 ar t icle, vehicles and dr iving people sound video r egulat ory screenshot s 1852 Zhang, checks m ot or vehicle ar chives 716 pieces t im es, and medium bus, and m edium above t ruck, and Of hazardous chem icals, vehicles and school buses and ot her key vehicle inspect ion r ecor d of 420. ( C) based on t heir own, and st rict adher ence