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【正文】 f orm. M otor vehicles and t r aff ic police depar tm ents, St at e t r anspor t aut horit y t o f urt her clar if y t he Division of labour , im plem ent at ion r esponsibilt y, st r engt hen our colabor ation and m anagem ent t oget her, r einf or cing t he m anagem ent of dr iver s on which st r ongly synt het ic war f ar e and inf orm ation 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 driving exam , cur r ent ly DM V is ur ged contr act ors par t y in t r easures dr iving school incr eased sim ulat ion Highway, and continuous 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 expected Abstract The single chip microputer is the microputer,which intergrates the main puter function part on a is a microcontroller which is a collection of microprocessor and many kinds of interfaces in a body, which is widely applied in the intelligent product and in the industrial automation, but 51 SCM is the most typical and the most repesentative one kind in SCM. This design takes MCS51series 8751H as a core, connects with the keyboard and the monitor, adjusts the pulse signal frequency, then realizes the stepping motor speed control. The stepping motor is a kind of motor easy to is used widely for its are many ways to control the stepping motor. The Microputer control speed regulator taking 8751H as a core solves the diversifyed kind of controltechnic. The whole system structure is simple. Diversified kind of control function is realized flexibly by changing software design. My design method is programming with SCM 8751H, realizing the control of the stepping motor in order to achieve the accurate the high four bits ～ of 8751H’s parallel P1 with driver circuit interface four input pins A,B,C,D repectively, and connect the output pins of the driver circuit with the four input exciting coil pins of the stepping motor. Programming to SCM makes the data output of the high four bits to control the stepping motor after amplified by the driver circuit, which makes the stepping motor rotate clockwise and anticlockwise. The possible impacts during the CPU operation which leads the ―running out‖,or ―death cycle‖of program are taken into ,the‖watchdog‖circuit is designed using microprocessor integrated chip MAXI813 produced by United States MAXIM. This article in detail has given the related hardware diagram and the software fiow chart,and has established this assembly language procedure. The keyword :8751H； stepping motor； SCM control 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 s uper 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 m ar ket petit iveness. Innovation of science and t echnology science and t echnology innovat ion is t o play t he r ole of science and t echnology as t he prim ar y pr oductive f or ce, act ive use of new t echnologies, new m at erials, new pr ocesses, new equipm ent, incr ease investm ent in science and t echnology, st r engt hening scient if ic and t echnological t r aining, speeding up t r ansf orm ing s cient if ic and t echnological achievem ent s, f orm ing a num ber of pr opr iet ary t echnology, enhancing core pet it iveness. Resourc esavingt her esour ces saving ent er pr ise was t o r educe coal consumption, wat er consumpt ion, elect r icit y at t he core, enhance t he operat ion of lean m anagement o r ealize low consum ption, high ef f iciency, r educe pr oduct ion cost s. Second is t o st r engt hen t he bus iness, f inancial, m ater ial, inf or mation and t he opt im ization of or ganizat ion and m anagement , saving t he int er nal t r ansaction cost s. Har monious developm ent of har monious developm entis t o constr uct a f oreign envir onm ent f or developm ent . XING r efer s t o t he int ernal securit y f ir m and int er nal m anagem ent of t he int er nal m anagement measures are ef f ect ive, har monious. For eign cur rency m eans Enter prise coor dinating developm ent of homeopathy, well, get along wit h t he neighbor s bet ter. ( B) XX 2021 f ive ent er prises building int r insic saf et y power pany goals ar e: unplanned outage 0 t im es. Class of disor der s 0, 0 is equivalent f or ced out age r ate. No per sonal inj ur y accident , m at er ial and equipm ent accident s do not occur, no f ir e, no envir onment al polut ion accident . Enterprise integrated to achieve zero cases of violation, zero accidents, zero. Quality goal is: when generating capacity ≥ 7. 5 bilon kilowatt, sales of over 7. 11 bilon kWh, total profits of ≥ milon Yuan, . . . BFS++、 PI、 M IS、 SCM I nfor mation syst em s inf r astr uct ure, f uly int egr at ed inf orm at ion system t o r ealize inf or mation r esources shar ing。 I I is est ablished m ot or vehicle t est r egulat ory plat f orm , achieved mot or vehicle t est f ul pr oces s video, and dat a r em ote r egulator
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