【正文】 lish t he pr oj ect boundary securit y alarm syst em, in a Wor d, this boundary is a project of t he secur it y alar m system is highly aut omat ed and efficient hospit alit y for a f or table, convenient, and highly secur e envir onment. Five, scheme design based on design principles, design specifcations and according to int ernat ional and domestic st andar ds, and in accordance wit h user needs, as well as drawings and r elated infor mat ion provided by, and j oining t he pr oj ect 39。 17 低通濾波器的設(shè)計(jì) 18 20 指標(biāo)測試和測試結(jié)果 21 結(jié)果分析 while, system of inst alat ion debugging, and sof t war e pr ogr amming and operation using and should simple, easy m aster, f or China condit ions and t his pr oj ect of eatures. Set t he num ber of advanced t echnol gy in a t he systems, r ef lect s t he cur rent level of t he lat est developm ent of put er and wor k t echnol gy, adapt ed t o t he r equir ement s of t he t imes. While t he system is t he syst em used f or various m anagem ent levels, it s f unct ions ar e configured t o pr ovide t he user wit h f or table, safe, f ast and convenient o 3. 1, t he int elligent building design standards (GB/t 503142020) , t he design st andar d for intelligent building syst ems engineering (DB32/1911998) 3. 3, the code f or engineer ing design of generic cabling syst em f or cit y residential buildings ( CECS/1192020) 3. 4, code f or design of buildings and campus cable syst ems engineering ( GB/T50312020) , t he code f or elect rical design of civil buildings ( J GJ / T1692) , t he code f or civil closed cir cuit m onit oring TV syst em engineer ing t echnology ( GB/5019894) 3. 7, the types of syst em ear thing and saf et y technical r equirements (GB14050 93) 3. 8, of t he secur ity engineering procedures and r equirements (GA/T7594) , t he r ules of secur it y engineering acceptance (GA/T308 2020) , t he indust rial design of TV system code (GBJ 115) 3. 11, t he Secur it y checks pr event ion syst em pass f or gr aphics ymbol ( GA/7494) , and f ir e linkage contr ol equipment Gener al t echnology condit ions ( GB 16806 1997) f our, and syst em f unction and features in system both advanced, and pr actical, and matur e, and r eliable, and do system open, and can extended sex god, both invest ment reasonable, and benefit s best of pur pose, border securit y alarm syst em on sit e equipment for concentr at ed m onit or ed, and cont rol and management, makes t hese equipment o secur it y, and r eliable, and ef ficient o run, M aximize intelligent management r ole to create a saf e, healt hy, f or table and pleasant , and to im prove t he ef ficiency of a good environment and save ener gy, and reduce maintenance personel. Accor ding t o the project39。s sit e t o see and list en t o t he leadership pr oposal, and in accordance wit h t he act ual needs of t he pr oject , wit h r ef er ence t o t he r elevant int ernat ional st andards and nat ional st andards, bined wit h t he experience accum ulat ed by t he pany engaged in m ult iple pr oj ects, pr epare t he t echnol gy package. I f t he cont ents or any other aspect of t he pr ogr amm e has not detailed wher e we wele your valuable m ents. Second, t he design principles of t he pr oj ect design f olows t echnology advanced, f unctional, st able and cost saving principles. And considering const ruct ion, m aint enance and oper at ion, and f or f utur e developm ent , expansion, r econst r uc tion and ot her f act ors leave r oom f or expansion. Design elements of t he syst em is t he systematic, int egr ated and pr ehensive。 28 附錄 4 程序清單 25 附錄 1 使用說明 24 15 高頻變壓器的繞制 design has t he scient if ict y, r easonabilt y and operabilt y. I ts has f ol wing pr inciples: 2. 1, and advanced and applicabilt y used cur ently m ost advanced of sof t, and hardware and t he wor k t echnol gy, er rors r at e low, patible sex st r ong, upgr ade easy, used module t ype str uct ur e, expansion convenient, no r epeat const ruct ion i vestment, syst em of t echnol gy per form ance and qualit y index should r eached int er nat ional eading level。該電源采用推挽升壓和全橋逆變兩級(jí)變換 ， 在控制電路上，前級(jí)推挽升壓電路采用 SG3525 芯片控制 ，閉環(huán)反饋； 逆變部分采用 驅(qū)動(dòng)芯片 IR2110 進(jìn)行全橋逆變，采用U3990F6 完成 SPWM 的調(diào)制 ， 后級(jí)輸出采用電流互感器進(jìn)行采樣反饋，形成雙重反饋環(huán)節(jié)，增加了電源的穩(wěn)定性； 在保護(hù)上，具有輸出過載、短路保護(hù) 、過流保護(hù)、空載保護(hù) 等多重保護(hù)功能電路，增強(qiáng)了該電源的可靠性和安全性 ；輸出交流電壓通過 AD637 的真有效值轉(zhuǎn)換后，再由 STC89C52 單片機(jī)的控制進(jìn)行模數(shù)轉(zhuǎn)換，最終將電壓值顯示到液晶 12864 上，形成了良好的人機(jī)界面。s sit e t o see and list en t o t he leadership pr oposal, and in accordance wit h t he act ual needs of t he pr oject , wit h r ef er ence t o t he r elevant int ernat ional st andards and nat ional st andards, bined wit h t he experience accum ulat ed by t he pany engaged in m ult iple pr oj ects, pr epare t he t echnol gy package. I f t he cont ents or any other aspect of t he pr ogr amm e has not detailed wher e we wele your valuable m ents. Second, t he design principles of t he pr oj ect design f olows t echnology advanced, f unctional, st able and cost saving principles. And considering const ruct ion, m aint enance and oper at ion, and f or f utur e developm ent , expansion, r econst r uction and ot her f act ors leave r oom f or expansion. Design elements of t he syst em is t he systematic, int egr ated and pr ehensive。s actual sit uat ion and fut ur e development rends, border secur ity alar m syst ems f or t h