近年(nian)來隨著社會的(de)發展，安(an)防技術也在(zai)不斷的(de)成熟(shu)與(yu)完善(shan)，安(an)防正(zheng)朝著網絡化、高(gao)清化與(yu)智(zhi)(zhi)能化邁進。高(gao)速公路(lu)(lu)(lu)視頻(pin)(pin)監控(kong)系統也不例外，但是高(gao)速公路(lu)(lu)(lu)監控(kong)系統龐大(da)，距離遙遠，信號錯綜(zong)復雜，對系統的(de)穩(wen)(wen)定(ding)性(xing)(xing)、應用的(de)靈活性(xing)(xing)均提(ti)出了(le)更高(gao)的(de)要求，因此要實(shi)現高(gao)速公路(lu)(lu)(lu)視頻(pin)(pin)監控(kong)系統的(de)網絡化、高(gao)清化與(yu)智(zhi)(zhi)能化，搭建智(zhi)(zhi)能型、穩(wen)(wen)定(ding)性(xing)(xing)、實(shi)用性(xing)(xing)、先進性(xing)(xing)、可靠性(xing)(xing)、可擴展性(xing)(xing)、靈活性(xing)(xing)的(de)光纖傳輸(shu)系統成為了(le)重中之重。本文提(ti)出的(de)方案，是針對內(nei)蒙(meng)古鄂爾多(duo)斯(si)高(gao)速公路(lu)(lu)(lu)而設計的(de)光纖傳輸(shu)方案。
一、客戶需求
2.1系統構成
根據實(shi)際需(xu)(xu)求情況，鄂爾多斯市高(gao)速(su)公(gong)(gong)路(lu)視(shi)頻監(jian)控(kong)(kong)系列光纖傳(chuan)輸系統的建設(she)主要包括(kuo)：一(yi)(yi)個(ge)(ge)總監(jian)控(kong)(kong)管(guan)理(li)中(zhong)(zhong)(zhong)心(xin)(xin)，三(san)個(ge)(ge)分監(jian)控(kong)(kong)管(guan)理(li)中(zhong)(zhong)(zhong)心(xin)(xin)(其中(zhong)(zhong)(zhong)一(yi)(yi)個(ge)(ge)設(she)為(wei)總監(jian)控(kong)(kong)中(zhong)(zhong)(zhong)心(xin)(xin))，七(qi)對(dui)高(gao)速(su)公(gong)(gong)路(lu)服(fu)務區(qu)(分別在高(gao)速(su)公(gong)(gong)路(lu)兩旁2-3Km處(chu))，七(qi)個(ge)(ge)收費站，分別布局在七(qi)對(dui)高(gao)速(su)公(gong)(gong)路(lu)服(fu)務區(qu)附近(jin)。七(qi)對(dui)高(gao)速(su)公(gong)(gong)路(lu)服(fu)務區(qu)、七(qi)個(ge)(ge)收費站所(suo)(suo)有數(shu)據均需(xu)(xu)上傳(chuan)至所(suo)(suo)轄分監(jian)控(kong)(kong)中(zhong)(zhong)(zhong)心(xin)(xin)，分監(jian)控(kong)(kong)中(zhong)(zhong)(zhong)心(xin)(xin)全部數(shu)據，均可(ke)由總監(jian)控(kong)(kong)中(zhong)(zhong)(zhong)心(xin)(xin)調取和實(shi)時監(jian)控(kong)(kong)及控(kong)(kong)制。
1、總監控管理中心：
鄂(e)爾(er)多斯市高速(su)公路視頻(pin)監(jian)控(kong)(kong)系列(lie)光纖傳輸系統(tong)的中心(xin)。對(dui)下屬3個分(fen)監(jian)控(kong)(kong)中心(xin)，共(gong)510路視頻(pin)圖像進行監(jian)控(kong)(kong)管理，以及收費站近20×7路視頻(pin)，并對(dui)區(qu)間測速(su)數據控(kong)(kong)制(zhi)具備實時(shi)檢測及控(kong)(kong)制(zhi)能力。
2、分監控管理中心：
樁(zhuang)號K19+650點分(fen)監控(kong)(kong)管(guan)理中(zhong)(zhong)心(A分(fen)控(kong)(kong)中(zhong)(zhong)心)，A分(fen)控(kong)(kong)中(zhong)(zhong)心含74個(ge)道(dao)路視(shi)頻(pin)監控(kong)(kong)點，其中(zhong)(zhong)A分(fen)控(kong)(kong)中(zhong)(zhong)心前端(duan)14個(ge)，后端(duan)59個(ge)，旁(pang)1個(ge)。含2對服務(wu)區，每個(ge)服務(wu)區20個(ge)視(shi)頻(pin)攝像機，共80個(ge)。其中(zhong)(zhong)，2對服務(wu)區的樁(zhuang)號分(fen)別(bie)是：K19+650、K101+830。因此A分(fen)控(kong)(kong)中(zhong)(zhong)心視(shi)頻(pin)總量(liang)為154路。
樁(zhuang)號(hao)K135+100點分監控管理中(zhong)心(xin)(xin)(總(zong)監控管理中(zhong)心(xin)(xin)設置在此分控中(zhong)心(xin)(xin)，因此該處稱為(wei)B總(zong)控中(zhong)心(xin)(xin))，B總(zong)控中(zhong)心(xin)(xin)含71個(ge)(ge)道路視頻監控點，其中(zhong)A分控中(zhong)心(xin)(xin)前端(duan)9個(ge)(ge)，后端(duan)61個(ge)(ge)，旁1個(ge)(ge)。含2對服(fu)務區，每個(ge)(ge)服(fu)務區20個(ge)(ge)視頻攝像機，共(gong)80個(ge)(ge)。其中(zhong)，2對服(fu)務區的樁(zhuang)號(hao)分別是：K135+100、K189+950。因此B總(zong)控中(zhong)心(xin)(xin)視頻總(zong)量為(wei)151路。
樁K380+100點(dian)分(fen)(fen)監控(kong)管理中(zhong)(zhong)心(xin)(C分(fen)(fen)控(kong)中(zhong)(zhong)心(xin))，C分(fen)(fen)控(kong)中(zhong)(zhong)心(xin)含88個道路視(shi)頻(pin)監控(kong)點(dian)，其中(zhong)(zhong)A分(fen)(fen)控(kong)中(zhong)(zhong)心(xin)前端70個，后端17個，旁1個。含3對服(fu)務(wu)區(qu)，每個服(fu)務(wu)區(qu)20個視(shi)頻(pin)攝像機(ji)，共120個。其中(zhong)(zhong)，3對服(fu)務(wu)區(qu)的樁號分(fen)(fen)別是(shi)：K247+200、K313+700、K380+100。因(yin)此C分(fen)(fen)控(kong)中(zhong)(zhong)心(xin)視(shi)頻(pin)總量(liang)為208路。
將A、C分(fen)控(kong)(kong)(kong)(kong)中(zhong)(zhong)(zhong)心通過(guo)2芯(xin)光纖與管理中(zhong)(zhong)(zhong)心組成星型傳(chuan)(chuan)輸網(wang)絡，將系統中(zhong)(zhong)(zhong)監(jian)控(kong)(kong)(kong)(kong)視(shi)頻(pin)圖(tu)像(xiang)應用(yong)一(yi)芯(xin)采(cai)用(yong)智(zhi)(zhi)能千兆光網(wang)絡上傳(chuan)(chuan)或者(zhe)調取(qu)數(shu)(shu)(shu)據，另(ling)外，應用(yong)一(yi)芯(xin)分(fen)別(bie)從A、C分(fen)控(kong)(kong)(kong)(kong)中(zhong)(zhong)(zhong)心實時傳(chuan)(chuan)輸任意32路(lu)非(fei)壓縮視(shi)頻(pin)圖(tu)像(xiang)至總(zong)控(kong)(kong)(kong)(kong)中(zhong)(zhong)(zhong)心。鑒于(yu)分(fen)控(kong)(kong)(kong)(kong)中(zhong)(zhong)(zhong)心距(ju)總(zong)控(kong)(kong)(kong)(kong)中(zhong)(zhong)(zhong)心距(ju)離(li)長(chang)，采(cai)取(qu)增(zeng)加節(jie)點(dian)的方式延長(chang)傳(chuan)(chuan)輸距(ju)離(li)。該(gai)高速(su)公路(lu)含7對服務區(qu)，7個收(shou)費站(zhan)，均采(cai)用(yong)智(zhi)(zhi)能千兆光網(wang)絡上傳(chuan)(chuan)或調取(qu)數(shu)(shu)(shu)據，采(cai)用(yong)一(yi)芯(xin)光纖。各路(lu)段除視(shi)頻(pin)監(jian)控(kong)(kong)(kong)(kong)以外，另(ling)含有(you)交通誘導(dao)、區(qu)間(jian)測(ce)速(su)，這些(xie)交通誘導(dao)采(cai)用(yong)RS485傳(chuan)(chuan)輸數(shu)(shu)(shu)據，并在視(shi)頻(pin)監(jian)控(kong)(kong)(kong)(kong)點(dian)旁，因(yin)(yin)此采(cai)用(yong)在視(shi)頻(pin)監(jian)控(kong)(kong)(kong)(kong)點(dian)設(she)置光端(duan)機處(chu)，增(zeng)添RS485傳(chuan)(chuan)輸通道即(ji)可，區(qu)間(jian)測(ce)速(su)采(cai)用(yong)以太網(wang)數(shu)(shu)(shu)據傳(chuan)(chuan)輸，因(yin)(yin)光纖資源有(you)限，僅提供一(yi)芯(xin)單模光纖，傳(chuan)(chuan)輸節(jie)點(dian)數(shu)(shu)(shu)量多，因(yin)(yin)此，采(cai)用(yong)千兆智(zhi)(zhi)能環網(wang)以太網(wang)光纖收(shou)發器傳(chuan)(chuan)輸。
鄂爾多斯市高(gao)速(su)公路(lu)視(shi)頻(pin)(pin)監控(kong)(kong)(kong)(kong)(kong)(kong)系列光(guang)纖傳(chuan)(chuan)(chuan)輸(shu)系統(tong)采(cai)用(yong)(yong)分(fen)(fen)布式、多級管理模(mo)式，分(fen)(fen)控(kong)(kong)(kong)(kong)(kong)(kong)中(zhong)(zhong)心(xin)(xin)與總(zong)控(kong)(kong)(kong)(kong)(kong)(kong)中(zhong)(zhong)心(xin)(xin)之間用(yong)(yong)2芯光(guang)纖組成星型傳(chuan)(chuan)(chuan)輸(shu)網(wang)絡(luo)，以(yi)(yi)及分(fen)(fen)控(kong)(kong)(kong)(kong)(kong)(kong)中(zhong)(zhong)心(xin)(xin)與服(fu)務(wu)區(qu)(qu)(qu)(qu)、收(shou)費站之間用(yong)(yong)1芯光(guang)纖也組成智能冗余(yu)千兆(zhao)共(gong)享是光(guang)網(wang)絡(luo)鏈路(lu)，高(gao)速(su)公路(lu)傳(chuan)(chuan)(chuan)輸(shu)距離遠，監控(kong)(kong)(kong)(kong)(kong)(kong)點(dian)分(fen)(fen)散度高(gao)，因此該(gai)傳(chuan)(chuan)(chuan)輸(shu)方(fang)案(an)采(cai)用(yong)(yong)光(guang)電級聯(lian)方(fang)式，應用(yong)(yong)CWDM波分(fen)(fen)復(fu)用(yong)(yong)技術(shu)解決(jue)光(guang)纖資源不足，監控(kong)(kong)(kong)(kong)(kong)(kong)點(dian)多切分(fen)(fen)散的問題。該(gai)方(fang)案(an)分(fen)(fen)三級信(xin)(xin)號(hao)(hao)(hao)(hao)傳(chuan)(chuan)(chuan)輸(shu)管理，第(di)一(yi)級為(wei)總(zong)控(kong)(kong)(kong)(kong)(kong)(kong)中(zhong)(zhong)心(xin)(xin)，對道(dao)路(lu)監控(kong)(kong)(kong)(kong)(kong)(kong)圖(tu)像(xiang)施(shi)行實時監控(kong)(kong)(kong)(kong)(kong)(kong)，全部錄像(xiang)圖(tu)像(xiang)數據可全部上傳(chuan)(chuan)(chuan)至總(zong)控(kong)(kong)(kong)(kong)(kong)(kong)中(zhong)(zhong)心(xin)(xin)，或(huo)者任意(yi)調取歷史時刻(ke)圖(tu)像(xiang);第(di)二(er)級為(wei)分(fen)(fen)控(kong)(kong)(kong)(kong)(kong)(kong)中(zhong)(zhong)心(xin)(xin)，分(fen)(fen)別管理所(suo)(suo)轄區(qu)(qu)(qu)(qu)域各類信(xin)(xin)號(hao)(hao)(hao)(hao)，并向上級總(zong)控(kong)(kong)(kong)(kong)(kong)(kong)中(zhong)(zhong)心(xin)(xin)提(ti)供該(gai)區(qu)(qu)(qu)(qu)域所(suo)(suo)有(you)信(xin)(xin)號(hao)(hao)(hao)(hao);第(di)三級為(wei)服(fu)務(wu)區(qu)(qu)(qu)(qu)、收(shou)費站以(yi)(yi)及道(dao)路(lu)監控(kong)(kong)(kong)(kong)(kong)(kong)點(dian)，服(fu)務(wu)區(qu)(qu)(qu)(qu)將該(gai)區(qu)(qu)(qu)(qu)監控(kong)(kong)(kong)(kong)(kong)(kong)視(shi)頻(pin)(pin)信(xin)(xin)號(hao)(hao)(hao)(hao)及云(yun)臺(tai)控(kong)(kong)(kong)(kong)(kong)(kong)制信(xin)(xin)號(hao)(hao)(hao)(hao)集中(zhong)(zhong)管理，收(shou)費站將所(suo)(suo)屬監控(kong)(kong)(kong)(kong)(kong)(kong)視(shi)頻(pin)(pin)信(xin)(xin)號(hao)(hao)(hao)(hao)集中(zhong)(zhong)管理，并通過(guo)與服(fu)務(wu)區(qu)(qu)(qu)(qu)共(gong)同組建共(gong)享式全速(su)千兆(zhao)智能光(guang)網(wang)絡(luo)，向分(fen)(fen)控(kong)(kong)(kong)(kong)(kong)(kong)中(zhong)(zhong)心(xin)(xin)，以(yi)(yi)及總(zong)控(kong)(kong)(kong)(kong)(kong)(kong)中(zhong)(zhong)心(xin)(xin)上傳(chuan)(chuan)(chuan)圖(tu)像(xiang)以(yi)(yi)及其(qi)他信(xin)(xin)號(hao)(hao)(hao)(hao)。道(dao)路(lu)監控(kong)(kong)(kong)(kong)(kong)(kong)點(dian)，集中(zhong)(zhong)該(gai)點(dian)視(shi)頻(pin)(pin)信(xin)(xin)號(hao)(hao)(hao)(hao)、云(yun)臺(tai)信(xin)(xin)號(hao)(hao)(hao)(hao)及就近的區(qu)(qu)(qu)(qu)間測(ce)速(su)或(huo)交通誘導等數據信(xin)(xin)號(hao)(hao)(hao)(hao)并上傳(chuan)(chuan)(chuan)所(suo)(suo)轄分(fen)(fen)控(kong)(kong)(kong)(kong)(kong)(kong)中(zhong)(zhong)心(xin)(xin)。三級通信(xin)(xin)靈活采(cai)用(yong)(yong)光(guang)電級聯(lian)，應用(yong)(yong)CWDM波分(fen)(fen)復(fu)用(yong)(yong)技術(shu)。以(yi)(yi)保障(zhang)下級向上級傳(chuan)(chuan)(chuan)輸(shu)的信(xin)(xin)號(hao)(hao)(hao)(hao)處于(yu)穩定(ding)高(gao)效的狀態。
2.2產品應用推薦
本(ben)方案著眼于鄂(e)爾多斯市高速公(gong)路視頻(pin)監控系(xi)列光(guang)(guang)纖傳(chuan)(chuan)輸系(xi)統的具體需求，依據系(xi)統智(zhi)能型、穩定性(xing)(xing)、實用性(xing)(xing)、先進性(xing)(xing)、可靠性(xing)(xing)、可擴(kuo)展(zhan)性(xing)(xing)、靈活性(xing)(xing)和經濟性(xing)(xing)等設計需求，建議視頻(pin)傳(chuan)(chuan)輸設備(bei)采用深圳市光(guang)(guang)網視科技(ji)有限公(gong)司的ONV非(fei)壓縮(suo)(suo)視頻(pin)數字(zi)電級聯光(guang)(guang)端機(ji)、ONV非(fei)壓縮(suo)(suo)視頻(pin)數字(zi)光(guang)(guang)端機(ji)、ONV智(zhi)能冗余式節點(dian)光(guang)(guang)纖收發器(qi)設備(bei)。
產品應用設計優越性體現在下列幾點：
A) 標準化原(yuan)則(ze)：設備(bei)的選型(xing)、調(diao)試、安裝等環節都將嚴格貫(guan)徹質量管理條例(li)，完全符(fu)合標書和國家(jia)、行業的有關標準，確保系統穩(wen)定、可靠、安全地運行。
B) 先(xian)(xian)進性原則：在(zai)系統設計中，我們充分考慮(lv)圖像監(jian)控及視(shi)頻(pin)(pin)傳(chuan)輸技(ji)術的發(fa)展(zhan)，參考目前視(shi)頻(pin)(pin)監(jian)控及圖像傳(chuan)輸行(xing)業的發(fa)展(zhan)水平，確保系統在(zai)國內處于領先(xian)(xian)地位(wei)。
C) 安(an)全可(ke)靠(kao)性原則：系統采(cai)用(yong)星(xing)形網絡結構，使(shi)用(yong)光級聯式，采(cai)用(yong)CWDM波(bo)分復用(yong)技術(shu)，應用(yong)不同波(bo)長實現各(ge)監控(kong)(kong)點故障(zhang)并(bing)不影響(xiang)其它監控(kong)(kong)點及分控(kong)(kong)中心、總(zong)控(kong)(kong)中心工作狀況(kuang)。使(shi)用(yong)電級聯式，采(cai)用(yong)業界(jie)最先進(jin)(jin)的光開關技術(shu)，電級聯技術(shu)，電級聯將視頻信(xin)號疊加調制(zhi)(zhi)，通過光開關進(jin)(jin)行故障(zhang)控(kong)(kong)制(zhi)(zhi)，使(shi)監控(kong)(kong)點故障(zhang)不影響(xiang)其他監控(kong)(kong)點及分控(kong)(kong)中心、總(zong)控(kong)(kong)中心工作狀況(kuang)。
D) 可(ke)擴展(zhan)性原則：本(ben)方案(an)設計(ji)時已考慮到系(xi)統(tong)以后(hou)的(de)可(ke)擴充性，充分考慮圖像業(ye)務需求，以及在(zai)不(bu)增加大量投資的(de)情況(kuang)下能滿足(zu)今后(hou)較長時間(jian)內系(xi)統(tong)的(de)升(sheng)級(ji)和(he)擴容要求，并(bing)為近(jin)期(qi)和(he)遠期(qi)系(xi)統(tong)聯網預留了(le)接口。
E) 經濟性(xing)原則：整(zheng)個傳(chuan)(chuan)輸系(xi)統能(neng)夠在先進性(xing)，開放性(xing)，高效性(xing)，實用(yong)性(xing)，可靠性(xing)和穩定性(xing)方面進行綜合(he)平衡，傳(chuan)(chuan)輸系(xi)統除了保(bao)障(zhang)圖(tu)像(xiang)傳(chuan)(chuan)輸的(de)高實時性(xing)，動態穩定的(de)圖(tu)像(xiang)業務外(wai)，還需具有良(liang)好的(de)系(xi)統性(xing)能(neng)價格比。
F) 實用性(xing)：方案設計滿足監(jian)控系統要求，充分考(kao)慮到系統圖(tu)像監(jian)控項目的具體(ti)使用要求。
G) 易(yi)用性原則：控(kong)制簡單(dan);故障(zhang)診斷和隔離容易(yi);方便(bian)服務。
3.1方案概述
本傳輸系(xi)統由星型連接級聯方式組網，總(zong)(zong)控(kong)(kong)中心(xin)可(ke)實(shi)現(xian)(xian)對道路監(jian)(jian)控(kong)(kong)所有圖(tu)像(xiang)實(shi)時監(jian)(jian)控(kong)(kong)并(bing)向任意(yi)監(jian)(jian)控(kong)(kong)點(dian)(dian)調取(qu)圖(tu)像(xiang)或其(qi)他信(xin)息，并(bing)可(ke)實(shi)現(xian)(xian)統一控(kong)(kong)制功能，各監(jian)(jian)控(kong)(kong)點(dian)(dian)之間保持獨立運行狀態，不受其(qi)它(ta)監(jian)(jian)控(kong)(kong)點(dian)(dian)工作狀況的影響，安裝(zhuang)簡單，維護(hu)方便。該(gai)系(xi)統采(cai)用先進(jin)的波(bo)分復用技(ji)術(shu)，光(guang)開關技(ji)術(shu)，電級聯技(ji)術(shu)，智能自(zi)愈技(ji)術(shu)，僅僅需要八(ba)芯光(guang)纖便可(ke)實(shi)現(xian)(xian)總(zong)(zong)控(kong)(kong)中心(xin)通(tong)過對其(qi)中任一監(jian)(jian)控(kong)(kong)點(dian)(dian)有效(xiao)地實(shi)現(xian)(xian)監(jian)(jian)控(kong)(kong)系(xi)統內的圖(tu)像(xiang)切換和控(kong)(kong)制以及收(shou)集道路運行所需數據(ju)并(bing)有效(xiao)交(jiao)通(tong)誘導。
3.2 系統組成
3.2.1總體結構
鄂(e)爾(er)多(duo)斯(si)市高(gao)速(su)(su)公路(lu)(lu)視(shi)頻(pin)(pin)監(jian)(jian)控(kong)(kong)(kong)系列(lie)光(guang)(guang)纖傳(chuan)(chuan)輸(shu)系統(tong)采取三級(ji)(ji)組網(wang)方式，根據鄂(e)爾(er)多(duo)斯(si)市高(gao)速(su)(su)公路(lu)(lu)實際情況，總控(kong)(kong)(kong)中(zhong)(zhong)(zhong)(zhong)心(xin)為第(di)一級(ji)(ji)，分(fen)(fen)(fen)控(kong)(kong)(kong)中(zhong)(zhong)(zhong)(zhong)心(xin)為第(di)二級(ji)(ji)，服(fu)(fu)務(wu)區(qu)(qu)及(ji)道路(lu)(lu)監(jian)(jian)控(kong)(kong)(kong)點(dian)(dian)(dian)為第(di)三級(ji)(ji)，服(fu)(fu)務(wu)區(qu)(qu)或道路(lu)(lu)監(jian)(jian)控(kong)(kong)(kong)點(dian)(dian)(dian)首先收集(ji)就近信號，并別(bie)分(fen)(fen)(fen)接入該服(fu)(fu)務(wu)區(qu)(qu)或道路(lu)(lu)監(jian)(jian)控(kong)(kong)(kong)點(dian)(dian)(dian)配(pei)置(zhi)的(de)光(guang)(guang)端機(ji)傳(chuan)(chuan)輸(shu)設備(bei)(bei)，在服(fu)(fu)務(wu)區(qu)(qu)、收費(fei)(fei)站(zhan)還(huan)可實現本地監(jian)(jian)看的(de)同時上傳(chuan)(chuan)監(jian)(jian)控(kong)(kong)(kong)圖像(xiang)到(dao)分(fen)(fen)(fen)控(kong)(kong)(kong)中(zhong)(zhong)(zhong)(zhong)心(xin)。分(fen)(fen)(fen)控(kong)(kong)(kong)中(zhong)(zhong)(zhong)(zhong)心(xin)將服(fu)(fu)務(wu)區(qu)(qu)及(ji)道路(lu)(lu)監(jian)(jian)控(kong)(kong)(kong)點(dian)(dian)(dian)匯聚(ju)的(de)視(shi)頻(pin)(pin)及(ji)其他信號集(ji)中(zhong)(zhong)(zhong)(zhong)統(tong)一管(guan)理，除(chu)實現本地監(jian)(jian)控(kong)(kong)(kong)以外，同時將所(suo)匯聚(ju)信號接入該分(fen)(fen)(fen)控(kong)(kong)(kong)中(zhong)(zhong)(zhong)(zhong)心(xin)配(pei)置(zhi)的(de)光(guang)(guang)端機(ji)設備(bei)(bei)。總控(kong)(kong)(kong)中(zhong)(zhong)(zhong)(zhong)心(xin)，將各分(fen)(fen)(fen)控(kong)(kong)(kong)中(zhong)(zhong)(zhong)(zhong)心(xin)上傳(chuan)(chuan)的(de)信號統(tong)一監(jian)(jian)控(kong)(kong)(kong)。鄂(e)爾(er)多(duo)斯(si)市高(gao)速(su)(su)公路(lu)(lu)視(shi)頻(pin)(pin)監(jian)(jian)控(kong)(kong)(kong)系列(lie)光(guang)(guang)纖傳(chuan)(chuan)輸(shu)系統(tong)的(de)建設包括：監(jian)(jian)控(kong)(kong)(kong)中(zhong)(zhong)(zhong)(zhong)心(xin)三個(ge)(其中(zhong)(zhong)(zhong)(zhong)一個(ge)含“分(fen)(fen)(fen)控(kong)(kong)(kong)中(zhong)(zhong)(zhong)(zhong)心(xin)”和“總控(kong)(kong)(kong)中(zhong)(zhong)(zhong)(zhong)心(xin)”兩種功能)，服(fu)(fu)務(wu)區(qu)(qu)7對(dui)(三個(ge)監(jian)(jian)控(kong)(kong)(kong)中(zhong)(zhong)(zhong)(zhong)心(xin)分(fen)(fen)(fen)布(bu)在14個(ge)服(fu)(fu)務(wu)區(qu)(qu)當中(zhong)(zhong)(zhong)(zhong)，服(fu)(fu)務(wu)區(qu)(qu)成對(dui)分(fen)(fen)(fen)布(bu) 在道路(lu)(lu)兩旁)，收費(fei)(fei)站(zhan)7個(ge)(分(fen)(fen)(fen)別(bie)位于服(fu)(fu)務(wu)區(qu)(qu)附近)。
鄂爾多斯(si)市高速公(gong)路(lu)視頻監(jian)控系列(lie)光纖傳(chuan)(chuan)(chuan)輸系統(tong)包括了視頻信號的(de)接(jie)入、傳(chuan)(chuan)(chuan)輸、控制和其他信號的(de)統(tong)一管理，是高速公(gong)路(lu)監(jian)控系統(tong)的(de)核心子系統(tong)。該項(xiang)目具有前端點分散(san)、多級傳(chuan)(chuan)(chuan)輸、分布式(shi)管理、線路(lu)復雜、保密性(xing)要求高等特(te)點，因(yin)此視頻傳(chuan)(chuan)(chuan)輸的(de)方式(shi)直接(jie)決定了整個監(jian)控系統(tong)的(de)質量和效果。
在本(ben)系統中，服務區/收費站、道路監(jian)控(kong)點、分控(kong)中心、總控(kong)中心之間的(de)視(shi)頻(pin)傳(chuan)(chuan)輸(shu)均采用(yong)了(le)(le)光纖(xian)作為傳(chuan)(chuan)輸(shu)通道。方案中設計(ji)的(de)全光數(shu)字監(jian)控(kong)網絡(luo)，是融合了(le)(le)數(shu)字非壓縮視(shi)頻(pin)編碼技(ji)(ji)(ji)(ji)(ji)術(shu)、光纖(xian)專(zhuan)網通信(xin)技(ji)(ji)(ji)(ji)(ji)術(shu)、數(shu)字矩陣技(ji)(ji)(ji)(ji)(ji)術(shu)、CWMD技(ji)(ji)(ji)(ji)(ji)術(shu)、光級(ji)聯技(ji)(ji)(ji)(ji)(ji)術(shu)、電級(ji)聯技(ji)(ji)(ji)(ji)(ji)術(shu)、光開關技(ji)(ji)(ji)(ji)(ji)術(shu)、智(zhi)能(neng)自愈網絡(luo)技(ji)(ji)(ji)(ji)(ji)術(shu)，針對高速公(gong)路監(jian)控(kong)系統視(shi)頻(pin)傳(chuan)(chuan)輸(shu)的(de)特點，實現了(le)(le)全數(shu)字傳(chuan)(chuan)輸(shu)及交叉切(qie)換(huan)、前端可擴(kuo)容等功能(neng)，是在傳(chuan)(chuan)統視(shi)頻(pin)監(jian)控(kong)聯網方式基礎上的(de)一次質的(de)飛躍。
3.2.2組網方式
總控中(zhong)心為第一級，分控中(zhong)心為第二級，服務(wu)區/收費站/道路監(jian)控點為第三級。利用已有的光纖為傳輸(shu)通道組成星型分布式傳輸(shu)網絡。
采用全(quan)光數字(zi)監(jian)控網絡(luo)，多級傳輸和統一管理，在滿(man)足并提高了專(zhuan)網傳輸能力和網絡(luo)質(zhi)量的(de)同時，建設起一套獨立(li)的(de)監(jian)控網絡(luo)。
1、服務區、收(shou)費站將(jiang)(jiang)視頻信號(hao)及控(kong)(kong)(kong)制(zhi)信號(hao)進行(xing)集(ji)中(zhong)后，除實現本地監控(kong)(kong)(kong)以為并向上(shang)級分控(kong)(kong)(kong)中(zhong)心(xin)上(shang)傳(chuan)。道路監控(kong)(kong)(kong)點僅(jin)將(jiang)(jiang)該點視頻信號(hao)、控(kong)(kong)(kong)制(zhi)信號(hao)以及其他(ta)就(jiu)近數(shu)據(ju)信號(hao)進行(xing)集(ji)中(zhong)到ONV智能(neng)冗余式千(qian)兆光(guang)纖(xian)收(shou)發器上(shang)傳(chuan)至上(shang)級分控(kong)(kong)(kong)中(zhong)心(xin)。
2、分(fen)控中心將視(shi)頻信(xin)號及其他(ta)信(xin)號進行集(ji)中后，除實現(xian)本地監控以外并(bing)視(shi)頻信(xin)號及其他(ta)信(xin)號統一上傳總控中心。
3、總(zong)控(kong)(kong)中(zhong)心通(tong)過獨立(li)光纖(兩芯)與(yu)分控(kong)(kong)中(zhong)心連接，組成傳輸網(wang)絡，實(shi)現(xian)總(zong)控(kong)(kong)中(zhong)心與(yu)分控(kong)(kong)中(zhong)心之間的雙向傳輸。
4、總控中(zhong)心(xin)(xin)對(dui)圖像信號的切(qie)換調用(yong)、控制和(he)傳(chuan)輸，可(ke)直接在總控中(zhong)心(xin)(xin)調用(yong)任意信號并實施相應控制。
圖1
光纖(xian)傳輸系統結構示意圖如圖2所示：
圖2
■區(qu)域劃(hua)分及光纖資源分配示意(yi)圖如圖3：
圖3
光纖傳輸系(xi)統道路A區傳輸方(fang)案分圖如圖4：
圖4
光纖傳輸(shu)系統(tong)道路B區傳輸(shu)方案分(fen)圖(tu)(tu)如圖(tu)(tu)5：
圖5
光纖傳輸系統道(dao)路C區傳輸方案分(fen)圖如圖6：
圖6
A、B、C區域設(she)備(bei)按(an)以上示意圖進行配置。因此依據光級聯(lian)傳(chuan)(chuan)輸(shu)視頻數(shu)量多，電級聯(lian)傳(chuan)(chuan)輸(shu)節(jie)(jie)(jie)點(dian)(dian)多距(ju)離遠，服務(wu)區、收(shou)費站圖像及其(qi)他信號上傳(chuan)(chuan)采用(yong)智(zhi)能(neng)冗余節(jie)(jie)(jie)點(dian)(dian)千(qian)(qian)兆收(shou)發器傳(chuan)(chuan)輸(shu)，分監(jian)控中(zhong)(zhong)心上傳(chuan)(chuan)總監(jian)控中(zhong)(zhong)心組(zu)建(jian)兩組(zu)千(qian)(qian)兆全線速(su)光纖網絡，采用(yong)智(zhi)能(neng)冗余節(jie)(jie)(jie)點(dian)(dian)千(qian)(qian)兆收(shou)發器傳(chuan)(chuan)輸(shu)，應用(yong)區間(jian)測(ce)速(su)采用(yong)智(zhi)能(neng)冗余節(jie)(jie)(jie)點(dian)(dian)千(qian)(qian)兆收(shou)發器傳(chuan)(chuan)輸(shu)，在(zai)距(ju)離超(chao)過100km，為保證傳(chuan)(chuan)輸(shu)質量采用(yong)增設(she)節(jie)(jie)(jie)點(dian)(dian)方式中(zhong)(zhong)繼傳(chuan)(chuan)輸(shu)。
高速公路收費站信號(hao)傳輸結構(gou)圖(tu)-光(guang)端機(ji)應用(yong)如圖(tu)7：
圖7
高(gao)速公(gong)路收(shou)(shou)費站(zhan)信號(hao)傳(chuan)輸結構圖(tu)-光纖(xian)收(shou)(shou)發(fa)器應用如圖(tu)8：
圖8
結束語：
自2008年以(yi)來中(zhong)國全(quan)面進入“高(gao)速公(gong)(gong)路(lu)時(shi)代”，全(quan)國各地(di)高(gao)速公(gong)(gong)路(lu)基礎建設連續五年如雨后春筍般各地(di)開花逐步編(bian)制出(chu)一幅優美的中(zhong)國高(gao)速公(gong)(gong)路(lu)網。進一步提升高(gao)速公(gong)(gong)路(lu)物防、技(ji)(ji)防水平，搭(da)建網絡化、高(gao)清(qing)化與(yu)智能化的高(gao)速公(gong)(gong)路(lu)視(shi)頻監控系(xi)統(tong)(tong)成(cheng)為高(gao)速公(gong)(gong)路(lu)基礎建設的核心項(xiang)目之一，其中(zhong)傳(chuan)輸系(xi)統(tong)(tong)的優劣將從根本上影(ying)響并決定著(zhu)整(zheng)(zheng)體方(fang)(fang)案(an)的安全(quan)性(xing)與(yu)實(shi)用性(xing)。鄂(e)爾多斯高(gao)速公(gong)(gong)路(lu)視(shi)頻監控光纖傳(chuan)輸系(xi)統(tong)(tong)設計方(fang)(fang)案(an)的提出(chu)，采用了工業傳(chuan)輸方(fang)(fang)案(an)模(mo)式，使得整(zheng)(zheng)體方(fang)(fang)案(an)更具實(shi)用性(xing)、穩定性(xing)。科(ke)(ke)技(ji)(ji)是生產的第一原動(dong)力，科(ke)(ke)技(ji)(ji)的發展，新技(ji)(ji)術的應(ying)用，安全(quan)可靠(kao)的高(gao)速公(gong)(gong)路(lu)傳(chuan)輸系(xi)統(tong)(tong)將會更好的促進智能化高(gao)速公(gong)(gong)路(lu)管理(li)體系(xi)日益完(wan)善與(yu)成(cheng)熟。
