毕业设计论文_基于单片机的医院病房紧急呼叫系统(无线语音

毕业设计论文_基于单片机的医院病房紧急呼叫系统(无线语音内容摘要：

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(C) based on t heir own, and str ict adher ence t o def ense, m or e cheat ing, f alse f alse f ugit ive suspect s, r ober y suspect vehicles and t he I nt er crackdown. DM V f ul play t o t he f ir st line of Def ense posit ion cont r ol, investigat ing cheat ing, f ake ident if ication and r obbery suspect vehicles t hrough operat ional wor k, and car efuly exam ine t he docum ent s and legal pr oof, check t r af fic violat ions, t r af fic accident s, t he f ugit ive suspect suspected vehicles and t heft t han t o wor k, f ur ther t ig ht car , dr iving m anagement business f orm alit ies r eview pr ocedur es. . . Tr uck dr iver inf orm ation m anagem ent plat for m. Mot or vehicles and t r aff ic police depar tm ent s, St at e t ransport author it y to f ur ther clar ify t he Division of labour , im plement ation r esponsibilt y, st r engt hen our colabor ation and m anagem ent ogether, r einfor cing t he m anagem ent of driver s on which st r ongly synt het ic war f ar e and inf orm ation war f are. 3 str ict ly im plement 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 ractor s par t y in t r easures dr iving school incr eased sim ulation Highway, and cont inuous ur gent det ours, and snow days, and wet sliding r oad, and bur st sit uation disposal, subj ect s I I f ield t o dr iving exam pr oject, is expect ed2 摘要 本文 介绍了一种以 AT89S52 单片机设计的医院病房无线呼叫系统。 该系统由单片机系统、无线收发系统、 功能开关、 1602 液晶显示器、 以 ISD4004 语音芯片为主的语音系统 等单元电路 组成。 该系统所用到的无线收发系统采用 315 无线收发模块的 PT2262 和 PT2267 编解码芯片，利用单片机的串行半双工通信来实现。 它的核心控制器采用 价格低廉，性能可靠的 单片机。 该系统主要工作原理是分机按键呼叫，主机声光报警，同时显示呼叫的号码，主机按键可回复。 研究表明该系统使用 方 便、快捷、安全可靠，可应用于医院、茶庄、 KTV、餐厅等领域。 在市场经济体制中，尤其在服务性的行业中，更省人、省钱、省心，更能提高企业效率，提高服务形象，带来更好的经济效益， 可作为电子产品进行开发研制，具有很好的推广价值。 关键词： 单片机技术 无线发射和接收 无线呼叫系统 ISD4004 1602 evaluat ion of scient if ic developm ent . Nat ur e securit y t ypenat ure securit y is t o m aint enance people of healt h value f or t arget, t hr ough st r engt hening securit y based m anagement, and r is k m anagem ent, and equipm ent m anagem ent and t echnol gy super vision, ensure pr oduct ion in t he people, and r eal, and syst em, and syst em, elem ent s ecurit y r eliable, and har m ony unif ied, f ul cont r ol var ious against f actor s, ac hieved t hought no slack, and m anagem ent no em pty docum ent, and equipm ent no hidden, and syst em no blocked, and unit zer o non st oped. Qualit y and ef ficiencyqualit y benefit is t o adher e t o t he ent er prise survival, pr ofit and developm ent business t r ut h, adher e t o t he all act ivit y is economic act ivit y, all cost s can be cont roled, m oney should not be wast ed m anagem ent philosophy, m anagement analysis, t o im pr ove m anagem ent qualit y, im pr ove cost contr ol capacit y and m ar ket petit iveness. I nnovation of science and t echnology science and t echnology innovat ion is t o play t he r ole of science and t echnol gy as t he pr im ar y pr oductive f or ce, active use of new t echnol gies, new m at er ials, new pr ocesses, new equipm ent , incr ease invest ment in science and t ec hnology, st rengt hening scientif ic and t echnological t r aining, speeding up t r ansf or ming scient if ic and t echnol gical achievem ent s, f orm ing a num ber of pr opr iet ary t echnol gy, enhancing cor e pet it iveness. Resour ce savingt her esour ces saving ent er prise was t o r educe coal consumption, wat er consum pt ion, elect r icit y at t he cor e, enhance t he oper at ion of lean m anagem ent t o r ealize low consum pt ion, high ef f iciency, r educe pr oduction cost s. Second is t o st r engt hen t he business, f inancial, m at er ial, inf orm ation and t he opt imizat ion of or ganizat ion and m anagem ent, s aving t he int er nal t r ansaction cost s. Harm onious developm ent of har monious developm entis t o constr uct a f or eign envir onment f or developm ent. XI NG r ef er s t o t he int er nal secur it y f ir m and int er nal m anagem ent of t he int er nal m anagem ent m easur es ar e eff ective, har m onious. For eign cur r ency m eans Ent er pr ise coordinat ing developm ent of hom eopat hy, well, get along wit h t he neighbor s bet t er. ( B) XX 2020 f ive ent er prises building int r insic saf et y power pany goals ar e: unplanned out age 0 t im es. Class of disor ders 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 kilowat t , sales of over 7. 11 bilon kWh, total profit。