【正文】 s actual sit uat ion and fut ur e development rends, border secur ity alar m syst ems f or t he project design. 5. 1. principle of syst em and burglar alar m system f rom det ect or s, regional dir ectors, and t he alarm cont rol centre posed of three parts. I ts principles as in t he folowing char t: det ector s f or burglar alar m system is inside and outside the building in key areas, import ant places, protect ion, when t he probe t o ilegal invader s, the signal t ransmit t ed t o t he alarm cont rol: sound and light alar m, display address, about he person on duty aft er r eceiving t he alar m, t ake measures accor ding t o the situation, t o contr ol t he development of t he sit uat ion. Anti theft alarm syst em alar m f unction in addit ion t o t he above, there is linkage f unct ion. Such as: open the alarm light ( including infr ared lam p) , int eract ive audio and。 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。設(shè)計(jì)中主電路采用電氣隔離、 DCDCAC 的技術(shù)，控制部分采用 SPWM（正弦脈寬調(diào)制）技術(shù)，利用對逆變原件電力 MOSFET 的驅(qū)動脈沖控制，使輸出獲得交流正弦波的穩(wěn)壓電源。滿載時 輸出功率 大于 100W，效率不小于 80%，具備過流保護(hù)和負(fù)載短路保護(hù)等功能 。 28 附錄 4 程序清單 25 附錄 3 電路原理圖及印制板圖 25 附錄 1 使用說明 24 21 結(jié)果分析 20 指標(biāo)測試和測試結(jié)果 18 AD 轉(zhuǎn)換電路的設(shè)計(jì) 18 17 低通濾波器的設(shè)計(jì) 15 高頻變壓器的繞制 15 輔助電源二的設(shè)計(jì) 15 輔助電源一的設(shè)計(jì) s envir onmental needs, and engagement f unctions t o est ablish 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。 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。 15 synchronous backup sof t ware does not r espond t