弱電工程外文翻譯

1、<p>　　河 北 建 筑 工 程 學(xué) 院</p><p>　　本科畢業(yè)設(shè)計（論文）外文資料翻譯</p><p>　　系別： 電氣工程系 </p><p>　　專業(yè)： 建筑電氣與智能化 </p><p>　　班級： 電智072

2、 </p><p>　　姓名： 王延龍 </p><p>　　學(xué)號： 2007318230 </p><p>　　外文出處： 《Electricity》 </p><p>　　附 件：1、外文原文；2、外文資料翻譯譯

3、文。</p><p>　　weak electricity engineering</p><p>　　System function</p><p>　　The in common use building weak electricity system mainly has a few kinds as follows:</p><p>

4、　　(1)The telephone corresponds by letter system</p><p>　　Carry out telephone(include three types of facsimile machines, can see a telephone...etc.) correspondence function The star type To rushes toward stru

5、cture; Use 3 types(or above) don't shield a double to wring line, deliver the frequency of signal within the scope of audio frequency.</p><p>　　(2)Area net system in calculator bureau</p><p&g

6、t;　　Is a realization to transact to automate and various data delivers of network foundation The star type to rushes toward structure Use 5 types(or above) don't shield a double to wring line, deliver number signal,

7、 the baud rate can reach to a 100 mbs the s is above.</p><p>　　(3)Music| broadcast system</p><p>　　The loudspeaker passed to install on the spot(is like places, such as market, restaurant, guest

8、 room and hallway...etc.) broadcasts music, and can pass to transmit sound machine to carry on a broadcasting to the spot Many road total line structure Deliver is certainly pressed a 120 Vs by the power enlarger output&

9、#39;s| the audio frequency signal of 120 Ωs with drive the spot loudspeaker phonation, deliver the line use copper Xin to insulate to lead line.</p><p>　　(4)The cabled T.V. signal assigns system</p>&

10、lt;p>　　Evenly assign the cabled T.V. signal to each customer inside the building to order ;Adopt branch and assign a machine to carry on a signal allotment, for letting up signal to lose to really reduce and make each

11、 customer order the request that the signal quality attains norm rules with , its cloth line is tree type structure, and order to distribute with the form of building and the customer of dissimilarity but dissimilarity U

12、se 75 Ω radio frequency coaxial cable, deliver many road radio frequen</p><p>　　(5)The public security supervises and controls system</p><p>　　The camera passed to install on the spot, guard aga

13、inst theft equipment like carry on surveillance and excrescent circumstance to report to the police to each exit and entrance and some important places of building etc. ;The video frequency signal delivers to adopt star

14、type structure, use video frequency coaxial cable ;Control delivering of signal to adopt total line structure, the use copper insulates a cable.</p><p>　　(6)The fire fight reports to the police system</p&

15、gt;<p>　　The system is reported to the police by a fire and the fire fight is allied the broadcasting system, fire alarm moving system, fire fight to constitute towards speaking 3 parts like telephone system.</

16、p><p>　　A fire reports to the police and the fire fight is allied and move system to pass constitution in the building everywhere of a fire locator, hand move to report to the police device etc. to the spot the

17、 circumstance carry on a monitor, be have already reported to the police signal, according to receiving of signal, according to in advance setting of procedure, unite the homologous equipments spreads by control fire, it

18、s signal delivers to adopt total line structure of many roads, but for importa</p><p>　　The fire fight broadcasting system is used for to direct the spot while taking place a fire a personnel safety evacuati

19、on, adopt total line structure of many roads, the signal delivers to use copper to insulate to lead line.(the system can and music broadcasting system suitable for use)</p><p>　　The fire alarm is two kinds o

20、f structure towards speaking that the telephone system is used for in command of spot fire fighter to carry on extinguishing fire a work, adopt star type and total line type, the signal delivers uses to shield line.</

21、p><p>　　(7)The exit and entrance controls system</p><p>　　Use calculator, intelligence Carmen equipment, such as lock and card reader...etc., carry on constitution, surveillance, control and record

22、 etc. to each exit and entrance status, carry out unify a management to each exit and entrance of building, promise mansion safety, its Tuo rushes toward structure and delivers to lie quality because of product but diffe

23、rence.</p><p>　　(8)The parking lot charge manages system</p><p>　　Pass to install under the exit and entrance ground of respond coil, respond the discrepancy of vehicle, pass artificial half aut

24、o the full-automatic charge management system, carry out a charge and control the Qi of dynamoelectric railing to shut... The system cloth's line is only limited by the exit and entrance of car field in the mansion,

25、each exit and entrance from one set controller control, the controller can independently work as well as manage a calculator allied net with place of honor,</p><p>　　(9)Building Yu from control system</p&

26、gt;<p>　　The various examination and performance spare part passed to connect with each other with the spot controller, to mansion inside outside of the work status of various equipments(is like air condition, to

27、the catchment, lighting, is provided to go together with equipment, such as electricity and elevator...etc.) inside various environment parameter and building carry on examination, surveillance and control, and link thro

28、ugh a calculator network each the spot controller, carry on reasonable allot</p><p>　　Also have the television meeting the system, expand a system and cruise more in addition system and building Yu to speak

29、system, three forms(water, electricity, annoy form) automatically and copy form system The weak electricity system that the building of different function needs to be established is each not same.</p><p>　　3

30、 systems are integrated</p><p>　　In the middle of physically working, the design should integrate 3 aspects: etc. to consider an integrated problem between the systems of each weak electricity from the netwo

31、rk integration, function integration and software interface.</p><p>　　3.1 networks are integrated</p><p>　　The network integrates mainly on-line come to consider from the cloth of each system, m

32、ake the weak electricity system of different function able to work the platform is at an unified cloth line up, so, on the other hand easy to also make on the other hand each weak electricity system to the management of

33、clothes line systems on the spot the decoration of equipments up have larger vivid.</p><p>　　At in common use building weak electricity system in, the telephone corresponds by letter system and the function

34、of area net in the calculator bureau system and the hardware equipments of the use each not same, but it the network rush toward the decoration principle that the structure, information orders homology, and can use homol

35、ogy of delivering and lying quality and connect a plug-in, so can synthesize two cloth lines of systems as a cloth line system Thus, two systems can be an exploitatio</p><p>　　3.2 functions are integrated<

36、;/p><p>　　The function integration includes a following both side contents:</p><p>　　(1) the function merge Main consideration will some on the function and hardware equipments up repeated of the s

37、ystem merge and make to merge the system of the empress before having merger all functions of each system, with decrease equipments redundancy, avoid repeated investment In the above-mentioned system, music broadcasting

38、system and fire fight report to the police and allied move the fire fight within system broadcasting system and then can be a system to design, but the system has to sa</p><p>　　(2) the function repair with

39、each other See from the function, each sub- systems in the building Yu automation all have its particular function and rule over scope and respectively and independently work at ordinary times, but while taking place som

40、e and special affairs, usually needing an of each system can be in conjunction with a work, the whole system carries out overall control and management the exaltation to the processing ability that bursts affairs, exalta

41、tion building of the intelligen</p><p>　　The fire fight reports to the police system →music broadcasting system When occurrence fire fight reported to the police, correspond the public broadcasting system of

42、 floor will drive strong line of cut over into an urgent broadcasting of fire fight;</p><p>　　The fire fight reports to the police system →the public security supervise and control system When occurrence fir

43、e fight reported to the police, the public security supervised and control system to automatically be like the shooting of camera of fire alarm close by district the appearance sliced to hold to lord surveillance in the

44、public security center and laid equal stress on some to record these shooting of cameras to be like contents with provide whether the confirmation has fire alarm occur</p><p>　　The fire fight reports to the

45、police system →the exit and entrance control system While confirming to take place fire fight to report to the police exit and entrance's control the each control door(the control door of important core part can esta

46、blish alone) having something to do with fire alarm part in the system should automatically be placed in to open status, for the purpose of internal personnel evacuate to withdraw to get into with fire fighter;</p>

47、<p>　　The fire fight reports to the police system →the garage manage system The garage management system should control garage while confirming fire fight to report to the police occurrence at the first floor or t

48、he underground layer the gateway place in open status, so that the vehicle inside the garage quickly withdraw a fire field;(at this time garage relevant of the camera should be placed in a work and record image status)&l

49、t;/p><p>　　The fire fight reports to the police system →the speech correspond by letter system After the fire fight reports to the police the system auto confirmation fire fight to report to the police occurren

50、ce, immediately pass the speech in the mansion correspondence system reports to the police to the fire fight bureau and deliver concerning the information, report to the police to supervisor's section in the mansion

51、at the same time;</p><p>　　Building Yu from control system →the public security supervise and control system When building Yu from control system to have difference to report to the police or trouble, the pu

52、blic security supervision system can automatically will report to the police the shooting of camera of close by district to be like appearance to slice to hold to lord surveillance in the public security center and lay e

53、qual stress on some to record these shooting of cameras to be like contents to provide after the eve</p><p>　　The public security supervises and controls system →building Yu from control system When the publ

54、ic security system reports to the police, can unite elevator control system, the elevator doesn't stop to depend to report to the police a layer, or stop to depend a public security member appointed layer;</p>

55、<p>　　The exit and entrance controls system →the public security supervise and control system When control door at not work when someone hold card into or take place illegal incursion the public security supervises

56、 and controls a system auto will get into of control door or report to the police a shooting of the camera of ordering the close by district to be like appearance to slice toward the public security center lord surveilla

57、nce hold, lay equal stress on some to record these shooting of cameras t</p><p>　　The garage manages system →the public security supervise and control system When the garage has vehicle discrepancy, the publ

58、ic security supervises and controls a system auto to be like the shooting of camera of garage door appearance to slice to hold to lord surveillance in the public security center and lay equal stress on some to record the

59、se shooting of cameras to be like contents to check when it's necessary by providing.</p><p>　　In fact, the function between each system is integrated and allied to move to respond to have no one mode of

60、 unified or fix, can establish according to the effective demand.</p><p>　　The function integrates a purpose just, in fact existing two kinds of modes, 1 kind is at each statures system on build up higher an

61、d first-degree management and control network, another is with building Yu from control system for center of integrated mode No matter choose which integrated mode, key techniques' all wanting to work out a correspon

62、dence problem between each system , while making sure a solution, must adopt theory forerunner and technique maturity and wide spread accept for industr</p><p>　　The building Yu been widespread accepted by t

63、he international society currently from control correspondence agreement of realm, is provided heat by the United States and make cold regulate the association establishment of engineer with air, and become standard ANSI

64、 of of ASCII|ASHRAE Standard 135-1995), it matches ISO(international standardizing organization) OSI(open system with each other connect)7 F model, forgiving 5 kinds already mature network correspondence agreement, inclu

65、ding correspond</p><p><b>　　弱電工程</b></p><p><b>　　弱電系統(tǒng)功能</b></p><p>　　常用的建筑弱電系統(tǒng)主要有以下幾種： </p><p>　　(1) 電話通信系統(tǒng)</p><p>　　實現(xiàn)電話(包括三類傳真機(jī)、可

66、視電話等)通信功能；星型拓?fù)浣Y(jié)構(gòu)；使用三類(或以上)非屏蔽雙絞線，傳輸信號的頻率在音頻范圍內(nèi)。 </p><p>　　(2) 計算機(jī)局域網(wǎng)系統(tǒng)</p><p>　　是實現(xiàn)辦公自動化及各種數(shù)據(jù)傳輸?shù)木W(wǎng)絡(luò)基礎(chǔ)；星型拓?fù)浣Y(jié)構(gòu)；使用五類(或以上)非屏蔽雙絞線，傳輸數(shù)字信號，傳輸速率可達(dá)100 Mb/s以上。 </p><p>　　(3) 音樂/廣播系統(tǒng)</p>

67、<p>　　通過安裝在現(xiàn)場(如商場、餐廳、客房、走廊等處)的揚(yáng)聲器，播放音樂，并可通過傳聲器對現(xiàn)場進(jìn)行廣播；多路總線結(jié)構(gòu)；傳輸由功率放大器輸出的定壓120 V/120 Ω的音頻信號，以驅(qū)動現(xiàn)場揚(yáng)聲器發(fā)聲，傳輸線使用銅芯絕緣導(dǎo)線。 </p><p>　　(4) 有線電視信號分配系統(tǒng)</p><p>　　將有線電視信號均勻地分配到樓內(nèi)各用戶點；采用分支、分配器進(jìn)行信號分配，為了減小

68、信號失真和衰減，使各用戶點信號質(zhì)量達(dá)到規(guī)范規(guī)定的要求，其布線為樹型結(jié)構(gòu)，且隨建筑物的形式及用戶點分布的不同而不同；使用75 Ω射頻同軸電纜，傳輸多路射頻信號。 </p><p>　　(5) 保安監(jiān)控系統(tǒng)</p><p>　　通過安裝在現(xiàn)場的攝像機(jī)、防盜探測器等設(shè)備，對建筑物的各出入口和一些重要場所進(jìn)行監(jiān)視和異常情況報警等；視頻信號的傳輸采用星型結(jié)構(gòu)，使用視頻同軸電纜；控制信號的傳輸采用總線

69、結(jié)構(gòu)，使用銅芯絕緣纜線。</p><p>　　(6) 消防報警系統(tǒng)</p><p>　　該系統(tǒng)由火災(zāi)報警及消防聯(lián)動系統(tǒng)、消防廣播系統(tǒng)、火警對講電話系統(tǒng)等3部分組成。 </p><p>　　火災(zāi)報警及消防聯(lián)動系統(tǒng)通過設(shè)置在樓內(nèi)各處的火災(zāi)探測器、手動報警裝置等對現(xiàn)場情況進(jìn)行監(jiān)測，當(dāng)有報警信號時，根據(jù)接收到的信號，按照事先設(shè)定的程序，聯(lián)動相應(yīng)的設(shè)備，以控制火勢蔓延，其信號

70、傳輸采用多路總線結(jié)構(gòu)，但對于重要消防設(shè)備(如消防泵、噴淋泵、正壓風(fēng)機(jī)、排煙風(fēng)機(jī)等)的聯(lián)動控制信號的傳輸，有時采用星型結(jié)構(gòu)，信號的傳輸使用銅芯絕緣纜線(有的產(chǎn)品要求使用雙絞線)。 </p><p>　　消防廣播系統(tǒng)用于在發(fā)生火災(zāi)時指揮現(xiàn)場人員安全疏散，采用多路總線結(jié)構(gòu)，信號傳輸使用銅芯絕緣導(dǎo)線(該系統(tǒng)可與音樂/廣播系統(tǒng)合用)。 </p><p>　　火警對講電話系統(tǒng)用于指揮現(xiàn)場消防人員進(jìn)行滅

71、火工作，采用星型和總線型兩種結(jié)構(gòu)，信號傳輸使用屏蔽線。 </p><p>　　(7) 出入口控制系統(tǒng)</p><p>　　使用計算機(jī)、智能卡門鎖、讀卡器等設(shè)備，對各出入口狀態(tài)進(jìn)行設(shè)置、監(jiān)視、控制和記錄等，實現(xiàn)對建筑物各出入口統(tǒng)一管理，保證大樓安全，其拓?fù)浣Y(jié)構(gòu)和傳輸介質(zhì)因產(chǎn)品而異。 </p><p>　　(8) 停車場收費(fèi)管理系統(tǒng)</p><p&g

72、t;　　通過安裝在出入口地面下的感應(yīng)線圈，感應(yīng)車輛的出入，通過人工/半自動/全自動收費(fèi)管理系統(tǒng)，實現(xiàn)收費(fèi)和控制電動欄桿的啟閉等。該系統(tǒng)布線僅限于大樓車場的出入口處，每一個出入口由一臺控制器控制，控制器可以獨(dú)立工作，也可以與上位管理計算機(jī)聯(lián)網(wǎng)，其布線結(jié)構(gòu)和傳輸介質(zhì)因產(chǎn)品而異。 </p><p>　　(9) 樓宇自控系統(tǒng)</p><p>　　通過與現(xiàn)場控制器相連的各種檢測和執(zhí)行器件，對大樓內(nèi)外

73、的各種環(huán)境參數(shù)以及樓內(nèi)各種設(shè)備(如空調(diào)、給排水、照明、供配電、電梯等設(shè)備)的工作狀態(tài)進(jìn)行檢測、監(jiān)視和控制，并通過計算機(jī)網(wǎng)絡(luò)連接各現(xiàn)場控制器，對樓內(nèi)的資源和設(shè)備進(jìn)行合理分配和管理，達(dá)到舒適、便捷、節(jié)省、可靠的目的。到目前為止，樓宇自控系統(tǒng)還沒有國際標(biāo)準(zhǔn)，不同廠家的產(chǎn)品所采用的通信協(xié)議各不相同，其現(xiàn)場總線和控制總線的拓?fù)浣Y(jié)構(gòu)和傳輸介質(zhì)也就不同。下面將對目前被國際社會普遍接受和采納的LonWorks技術(shù)和BACnet技術(shù)作簡單介紹。 <

74、/p><p>　　此外，還有電視會議系統(tǒng)、擴(kuò)聲系統(tǒng)、巡更系統(tǒng)、樓宇對講系統(tǒng)、三表(水、電、氣表)自動抄表系統(tǒng)等。不同功能的建筑物需要設(shè)置的弱電系統(tǒng)各不相同。</p><p><b>　　弱點系統(tǒng)集成</b></p><p>　　在實際工作中，設(shè)計者應(yīng)該從網(wǎng)絡(luò)集成、功能集成和軟件界面集成等3方面來考慮各弱電系統(tǒng)間的集成問題。 </p>

75、<p><b>　　3.1　網(wǎng)絡(luò)集成</b></p><p>　　網(wǎng)絡(luò)集成主要是從各系統(tǒng)的布線上來考慮，使不同功能的弱電系統(tǒng)能夠工作在一個統(tǒng)一的布線平臺上，這樣，一方面便于對布線系統(tǒng)的管理，另一方面也使各弱電系統(tǒng)在現(xiàn)場設(shè)備的布置上具有更大的靈活性。 </p><p>　　在常用的建筑弱電系統(tǒng)中，電話通信系統(tǒng)和計算機(jī)局域網(wǎng)系統(tǒng)的功能及使用的硬件設(shè)備各不相同，但

76、其網(wǎng)絡(luò)拓?fù)浣Y(jié)構(gòu)、信息點的布置原則相同，并且可以使用相同的傳輸介質(zhì)和接插件，所以可將兩個系統(tǒng)的布線綜合為一個布線系統(tǒng)。這樣，兩個系統(tǒng)可以互為利用，信息點的功能可以互換，使兩個系統(tǒng)都具有更大的靈活性，這也就是我們所說的綜合布線系統(tǒng)(PDS)。對其余幾種系統(tǒng)，綜合考慮技術(shù)上和經(jīng)濟(jì)上的可行性，目前的產(chǎn)品由于受系統(tǒng)拓?fù)浣Y(jié)構(gòu)、信號傳輸介質(zhì)和雙絞線對傳輸功率信號的限制等，其布線系統(tǒng)暫時還無法綜合到PDS中來。但是，隨著數(shù)字信號處理理論和應(yīng)用技術(shù)以及計

77、算機(jī)技術(shù)、通信技術(shù)等的不斷發(fā)展，未來的PDS一定會發(fā)展成為包含更多不同功能弱電系統(tǒng)的布線平臺。</p><p><b>　　3.2　功能集成</b></p><p>　　功能集成包括以下兩方面內(nèi)容： </p><p>　　(1) 功能合并。主要考慮將一些在功能上和硬件設(shè)備上重復(fù)的系統(tǒng)合并，使合并后的系統(tǒng)具備合并前各系統(tǒng)的所有功能，以減少設(shè)備冗余

78、，避免重復(fù)投資。在上述系統(tǒng)中，音樂/廣播系統(tǒng)和消防報警及聯(lián)動系統(tǒng)中的消防廣播系統(tǒng)就可以作為一個系統(tǒng)來設(shè)計，但系統(tǒng)必須滿足《消防自動報警系統(tǒng)設(shè)計規(guī)范》(GBJ 50116—98)的規(guī)定。 </p><p>　　(2) 功能互補(bǔ)。從功能上看，樓宇自動化系統(tǒng)中的各子系統(tǒng)都有其特定的功能和管轄范圍，平時各自獨(dú)立工作，但在發(fā)生某些特殊事件時，往往需要各系統(tǒng)之間能夠協(xié)同工作，以提高整個系統(tǒng)對突發(fā)事件的處理能力，實現(xiàn)全局性的控

79、制和管理，提高建筑的智能化程度。具體的聯(lián)動響應(yīng)包括以下幾種系統(tǒng)： </p><p>　　消防報警系統(tǒng)→音樂/廣播系統(tǒng)：發(fā)生消防報警時，相應(yīng)樓層的公共廣播系統(tǒng)將被強(qiáng)行切換至消防緊急廣播； </p><p>　　消防報警系統(tǒng)→保安監(jiān)控系統(tǒng)：發(fā)生消防報警時，保安監(jiān)控系統(tǒng)自動將火警相近區(qū)域的攝像機(jī)的攝像畫面切向保安中心主監(jiān)視屏，并重點監(jiān)錄這些攝像機(jī)的攝像內(nèi)容，以供確認(rèn)是否有火警發(fā)生和事后分析事故原

80、因等； </p><p>　　消防報警系統(tǒng)→出入口控制系統(tǒng)：確認(rèn)發(fā)生消防報警時，出入口控制系統(tǒng)中與火警部位有關(guān)的各管制門(重要核心部位的管制門可單獨(dú)設(shè)置)應(yīng)自動處于開啟狀態(tài)，以便內(nèi)部人員疏散撤出和消防人員進(jìn)入； </p><p>　　消防報警系統(tǒng)→車庫管理系統(tǒng)：確認(rèn)消防報警發(fā)生于底層或地下層時，車庫管理系統(tǒng)應(yīng)將車庫控制閘門置于開放狀態(tài)，以便車庫內(nèi)車輛迅速撤離火場(此時車庫有關(guān)的攝像機(jī)應(yīng)處于

81、工作和錄像狀態(tài))； </p><p>　　消防報警系統(tǒng)→語音通信系統(tǒng)：當(dāng)消防報警系統(tǒng)自動確認(rèn)消防報警發(fā)生后，立即通過大樓內(nèi)的語音通信系統(tǒng)向消防局報警并傳送有關(guān)信息，同時向大樓主管部門報警； </p><p>　　樓宇自控系統(tǒng)→保安監(jiān)控系統(tǒng)：當(dāng)樓宇自控系統(tǒng)有異報警或事故時，保安監(jiān)控系統(tǒng)可自動將報警相近區(qū)域的攝像機(jī)的攝像畫面切向保安中心主監(jiān)視屏，并重點監(jiān)錄這些攝像機(jī)的攝像內(nèi)容，以供事后分析事故

82、原因等； </p><p>　　保安監(jiān)控系統(tǒng)→樓宇自控系統(tǒng)：當(dāng)保安系統(tǒng)報警時，可以聯(lián)動電梯控制系統(tǒng)，使電梯不?？繄缶瘜樱蛲？勘０矄T指定層； </p><p>　　出入口控制系統(tǒng)→保安監(jiān)控系統(tǒng)：當(dāng)管制門在非工作時有人持卡進(jìn)入或發(fā)生非法侵入時，保安監(jiān)控系統(tǒng)自動將進(jìn)入的管制門或報警點相近區(qū)域的攝像機(jī)的攝像畫面切向保安中心主監(jiān)視屏，并重點監(jiān)錄這些攝像機(jī)的攝像內(nèi)容，以供必要時核對； </p&

83、gt;<p>　　車庫管理系統(tǒng)→保安監(jiān)控系統(tǒng)：當(dāng)車庫有車輛出入時，保安監(jiān)控系統(tǒng)自動將車庫門的攝像機(jī)的攝像畫面切向保安中心主監(jiān)視屏，并重點監(jiān)錄這些攝像機(jī)的攝像內(nèi)容，以供必要時核對。 </p><p>　　其實，各系統(tǒng)間的功能集成和聯(lián)動響應(yīng)并沒有一個統(tǒng)一或固定的模式，可以根據(jù)實際需要來設(shè)置。 </p><p>　　功能集成只是目的，其實現(xiàn)有兩種模式，一種是在各個子系統(tǒng)之上建立更高

84、一級的管理和控制網(wǎng)絡(luò)，另一種是以樓宇自控系統(tǒng)為中心的集成模式。不管選擇哪一種集成模式，關(guān)鍵技術(shù)都是要解決各系統(tǒng)間的通信問題，在確定解決方案時，一定要采用理論先進(jìn)、技術(shù)成熟且為業(yè)界普遍接受和采納的通信協(xié)議。 </p><p>　　目前被國際社會普遍接受的樓宇自控領(lǐng)域的一個通信協(xié)議，是由美國供熱、制冷與空氣調(diào)節(jié)工程師協(xié)會制定，并成為美國國家標(biāo)準(zhǔn)的BACnet標(biāo)準(zhǔn)ANSI/ASHRAE Standard 135—199

85、5)，它符合ISO(國際標(biāo)準(zhǔn)化組織)的OSI(開放系統(tǒng)互連)七層模型，包容5種已成熟的網(wǎng)絡(luò)通信協(xié)議，包括以太網(wǎng)和LonTalk等通信協(xié)議。其中，以太網(wǎng)通信協(xié)議是OA系統(tǒng)普遍使用的一種通信協(xié)議，大多數(shù)網(wǎng)絡(luò)操作系統(tǒng)都支持這種通信協(xié)議；而LonWorks技術(shù)是美國Echelon公司開發(fā)的新一代現(xiàn)場總線技術(shù)，它的突出優(yōu)點是支持任意拓?fù)浣Y(jié)構(gòu)，支持多種傳輸介質(zhì)(包括雙絞線、電力線、無線電波、紅外線、同軸電纜和光纖)，且多種介質(zhì)可以在同一網(wǎng)絡(luò)中混用，