資料顯示,，到2013年，我國鐵路總投資將達到3.5萬億人民幣,，根據(jù)規(guī)劃,，到2012年我國將建成客運專線42條，總里程1.3萬公里,，全國將形成“四縱四橫”鐵路快速客運通道,，東部、中部和西部地區(qū)大多數(shù)大城市都納入規(guī)劃,。而另據(jù)規(guī)劃,，預計到2020年，中國鐵路營業(yè)里程將達到12萬公里,。高鐵的蓬勃發(fā)展為安防業(yè)帶來了新的機遇和發(fā)展機會,，業(yè)內(nèi)人士分析僅視頻監(jiān)控系統(tǒng)" title="視頻監(jiān)控系統(tǒng)">視頻監(jiān)控系統(tǒng)" title="視頻監(jiān)控系統(tǒng)">視頻監(jiān)控系統(tǒng)" title="視頻監(jiān)控系統(tǒng)">視頻監(jiān)控系統(tǒng)" title="視頻監(jiān)控系統(tǒng)">視頻監(jiān)控系統(tǒng)" title="視頻監(jiān)控系統(tǒng)">視頻監(jiān)控系統(tǒng)" title="視頻監(jiān)控系統(tǒng)">視頻監(jiān)控系統(tǒng)" title="視頻監(jiān)控系統(tǒng)">視頻監(jiān)控系統(tǒng)" title="視頻監(jiān)控系統(tǒng)">視頻監(jiān)控系統(tǒng)" title="視頻監(jiān)控系統(tǒng)">視頻監(jiān)控系統(tǒng)" title="視頻監(jiān)控系統(tǒng)">視頻監(jiān)控系統(tǒng)" title="視頻監(jiān)控系統(tǒng)">視頻監(jiān)控系統(tǒng)" title="視頻監(jiān)控系統(tǒng)">視頻監(jiān)控系統(tǒng)" title="視頻監(jiān)控系統(tǒng)">視頻監(jiān)控系統(tǒng)" title="視頻監(jiān)控系統(tǒng)">視頻監(jiān)控系統(tǒng)" title="視頻監(jiān)控系統(tǒng)">視頻監(jiān)控系統(tǒng)" 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title="視頻監(jiān)控系統(tǒng)">視頻監(jiān)控系統(tǒng)" title="視頻監(jiān)控系統(tǒng)">視頻監(jiān)控系統(tǒng)" title="視頻監(jiān)控系統(tǒng)">視頻監(jiān)控系統(tǒng)" title="視頻監(jiān)控系統(tǒng)">視頻監(jiān)控系統(tǒng)" title="視頻監(jiān)控系統(tǒng)">視頻監(jiān)控系統(tǒng)平均每公里投資約為20萬元人民幣，按照2012年總里程1.3萬公里計算,，視頻監(jiān)控系統(tǒng)的市場規(guī)模將高達26億元,，而這些還沒有計算配套的門禁系統(tǒng)、入侵報警系統(tǒng),，這個安防大蛋糕不可謂不大,，只在于大家如何能夠吃到自己的那一份蛋糕，這里必將成為群雄逐鹿的新戰(zhàn)場,。
需求分析
高鐵的安防系統(tǒng)需求非常復雜,，由于屬于首次建設，再加上最近幾年安防技術發(fā)展較快,，尤其是視頻技術發(fā)展日新月異,，原有的鐵路安防建設標準已不能適應新的形式，本文限于篇幅,，主要分析高鐵監(jiān)控市場的困局,。
建設高鐵監(jiān)控系統(tǒng)一樣少不了標準和規(guī)范，鐵道部和有關部門共同制訂了《鐵路綜合視頻監(jiān)控系統(tǒng)技術規(guī)范》這個規(guī)范,，從名稱上來看“綜合視頻監(jiān)控系統(tǒng)”就意味著不僅僅是視頻監(jiān)控這么簡單,，既然“綜合”肯定要考慮和其它系統(tǒng)的融合，比方說報警系統(tǒng),、通信系統(tǒng),、控制系統(tǒng)等。按照規(guī)范的定義“綜合視頻監(jiān)控系統(tǒng)”是指“采用網(wǎng)絡化,、數(shù)字化視頻監(jiān)控技術和IP傳輸方式構建的視頻監(jiān)控系統(tǒng),，提供鐵路各業(yè)務部門和信息系統(tǒng)所需的視頻信息,，實現(xiàn)網(wǎng)絡和視頻信息資源共享。”同時,，規(guī)范還對鐵路綜合視頻監(jiān)控系統(tǒng)的網(wǎng)絡架構做了明文規(guī)定：“鐵路綜合視頻監(jiān)控系統(tǒng)主要由視頻節(jié)點設備,、視頻采集點前端設備,、視頻網(wǎng)絡和用戶終端構成,。其中，視頻接入節(jié)點位于高鐵沿線的各站段或中間站,，負責視頻的前端采集,、編碼等;視頻區(qū)域節(jié)點位于路局及客專調(diào)度所，主要設備為分散分布的網(wǎng)絡錄像機(NVR),、DVR,、存儲設備，同時也可進行大屏集中監(jiān)控,、網(wǎng)管,、流媒體轉(zhuǎn)發(fā)等;視頻核心節(jié)點位于鐵道部，可對視頻監(jiān)控信息進行調(diào)用和匯總,。鐵路綜合視頻監(jiān)控系統(tǒng)的視頻業(yè)務通過數(shù)據(jù)網(wǎng)承載,，視頻采集點的視頻信息可通過光纜、電纜或無線傳輸?shù)确绞浇尤氲剿鶎俚囊曨l接入節(jié)點,。”
在鐵路領域,，除了每條線都要求聯(lián)網(wǎng)管理外，甚至要求全國聯(lián)網(wǎng),。目前鐵路監(jiān)控中心設在鐵道部,，全國共有20多個區(qū)域中心，區(qū)域中心下面是各級接入點,。
基于以上的描述,，可以看到高鐵監(jiān)控的建設依然會采用三級體系：視頻接入節(jié)點、視頻區(qū)域節(jié)點和視頻核心節(jié)點,，每個節(jié)點的功能和定位不一樣,，如同縣、省,、國家這種關系,。筆者很快就想到了以前的變電站遠程監(jiān)控系統(tǒng)，因為筆者曾經(jīng)有過一段時間的建設經(jīng)驗,。
在變電站的遠程監(jiān)控中,，變電站分為三種：110千伏、220千伏和500千伏三種變電站,，其中500千伏變電站是有人值守變電站,，另外兩種為無人值守變電站,，變電站分布于各大城市周邊，其監(jiān)控就采用了三級結(jié)構的方式,，利用電力專用線路傳輸(大多數(shù)采用E1線路或者電力Intranet網(wǎng)),，和高鐵的建設有非常大的相似性，變電站的遠程監(jiān)控技術已經(jīng)相對比較成熟,，絕對可以給高鐵監(jiān)控建設以借鑒,，盡管高鐵的某些要求和應用有所區(qū)別。
高速鐵路要求全線都設置視頻監(jiān)控系統(tǒng),，設置點位比較多的是區(qū)間和站點,、特大橋、隧道,、公跨鐵,、區(qū)間基站、變電所等,。其中站點屬于有人值守,，其它區(qū)域?qū)儆跓o人值守，監(jiān)控的具體對象可能包括：區(qū)間公跨鐵區(qū)段,、通信,、信號機房、牽引供電,、電力供電機房內(nèi)外,、車站內(nèi)候車室、站臺,、進站大廳,、站前廣場、進站咽喉等場所的監(jiān)控,。另外視頻監(jiān)控系統(tǒng)需要進一步的和入侵報警系統(tǒng),、火災報警系統(tǒng)、門禁系統(tǒng),、動力監(jiān)控系統(tǒng)進行融合,，使得綜合視頻監(jiān)控系統(tǒng)變得更加復雜，而這恰恰就是廣大市場進入者需面臨的市場,。
另外,，高鐵領域視頻監(jiān)控系統(tǒng)也涉及眾多業(yè)務部門，比如公安,、車務段,、機務段、調(diào)度段、旅客服系統(tǒng),、客運段,、貨運段等都有各自獨特的視頻監(jiān)控需求，而這些復雜的需求要得到滿足的前提必須是：“統(tǒng)一領導,、統(tǒng)一規(guī)劃,、統(tǒng)一標準、統(tǒng)一資源,、統(tǒng)一管理”,，否則就會亂套。
高鐵安防應用還有一個非常顯著的特點：無人值守,。為了減少小站的設置,，高鐵領域很多場站都實行無人值守,。另外,，鐵路每隔數(shù)百米會有電力機房和通信機房，這些機房基本上都需要無人職守,，并用到視頻監(jiān)控和報警系統(tǒng),，以檢測是否有人入侵，現(xiàn)場的情況有無變化等,。因此,，高鐵無人值守機房對視頻監(jiān)控的需求量非常大。這就要求同一線路各專業(yè)的系統(tǒng)都集中起來管理,。那么建設一套大而全,、互相兼容匹配的系統(tǒng)就是高鐵視頻監(jiān)控建設的終極目標。
高鐵是典型的垂直市場,，誰能了解市場需求,，提出有針對性的解決方案，誰才是最終的贏家,。但高鐵視頻監(jiān)控市場將面臨著諸多困局：市場準入,、設備互聯(lián)互通、兼容,、統(tǒng)一的協(xié)議和規(guī)范,、滿足需要的各種功能等等，這些考驗在等待著形形色色的市場進入者,。
市場準入門檻高
盡管高鐵安防蛋糕誘人,，但參與過的設備供應商和集成商無不感嘆：高鐵領域門檻高!高鐵項目由鐵道部統(tǒng)一規(guī)劃及建設，對參與企業(yè)的要求非常高,，具有鐵道部認證的“四電”(通信,、信號、電力、電氣化)系統(tǒng)集成商才有資格承擔高鐵“站后工程”—“四電”集成系統(tǒng)及信息系統(tǒng)的承建工作,。真正擁有“四電”集成資質(zhì)的企業(yè)目前全國只有3～4家,，像國鐵華晨、易程科技,、中鐵電氣化局等都是代表企業(yè),。除此之外，也有一些其它企業(yè)具有較強的實力,。國內(nèi)的安防企業(yè)大多數(shù)都處于產(chǎn)品供應商或系統(tǒng)供應商級別,，很少企業(yè)具有垂直市場的“解決方案”能力，雖然平安城市,、地鐵,、變電站的建設培養(yǎng)了不少的解決方案供應商，但真正能夠提供高鐵解決方案的,，是少之又少,。
僅僅產(chǎn)品的選型也是千里挑一，無論是前端的攝像機,、傳輸端的編解碼器,、后端的控制系統(tǒng)都選用了比較高端的品牌，尤其是在視頻分析方面,，更是高端產(chǎn)品頻頻一統(tǒng)天下,，欣喜的是中國的安防企業(yè)已經(jīng)慢慢成熟，在硬盤錄像機,、模擬監(jiān)控攝像機,、光端機、護照,、支架,、云臺方面的競爭力還是有的，并且在相關項目上已有良好的介入,。
設備困局
不管是什么視頻監(jiān)控系統(tǒng),，組成的設備不外乎攝像機、鏡頭,、護照,、編解碼器、光端機,、矩陣控制設備,、聯(lián)動設備、探測器,、錄像設備,、遠程傳輸設備、后端接入設備、軟件平臺和顯示設備等等,，看似簡單,，實則復雜。在設備的選型上,，《鐵路綜合視頻監(jiān)控系統(tǒng)技術規(guī)范》對前端攝像機,、云臺、視頻編碼解設備,、存儲設備等都有明確的技術規(guī)范,。
以攝像機為例，分為模擬攝像機和網(wǎng)絡攝像機兩類,，外形上可以分為半球,、固定、高速球,，功能上可以分為夜視,、熱成像、低照度,、常規(guī)照度等等,，都要面臨日曬雨淋、臺風,、雷擊、暴曬,、高溫,、低溫這些環(huán)境因素，而高鐵監(jiān)控卻要求攝像機能夠全天候工作,，不論白天,、黑夜，不論地區(qū)和環(huán)境,，可以講很少有企業(yè)同時能夠提供高鐵所需的所有攝像機產(chǎn)品,，更沒有一家公司能供應所需的所有軟硬件產(chǎn)品，所以這就是筆者所謂的設備困局,。
所以,，高鐵的設備供應商肯定不是一家，這將對后續(xù)的維護和保養(yǎng)帶來一定的難度,，而建立入圍推薦品牌將是不可避免的措施,。
兼容困局
傳統(tǒng)的模擬監(jiān)控系統(tǒng)由于采用了類似有線電視的技術原理，通用性和兼容性都非常好,，但綜合考慮到安防IT化的趨勢,，還有大量網(wǎng)絡化監(jiān)控系統(tǒng)供應商的鼓吹、加之高鐵網(wǎng)絡傳輸?shù)男枰瑒荼馗哞F視頻監(jiān)控系統(tǒng)的建設將采用大量的IP產(chǎn)品,，比如說網(wǎng)絡攝像機,、網(wǎng)絡編解碼器、網(wǎng)絡硬盤錄像機以及軟件平臺,、視頻分析軟件等,，而IP監(jiān)控系統(tǒng)最大的缺點就是兼容性，很少有一個后臺程序,、平臺可以兼容前端五花八門的IP設備,，如果采用一家公司的產(chǎn)品容易形成壟斷，不利于監(jiān)控系統(tǒng)的長期穩(wěn)定的發(fā)展及維護,，也面臨很大的風險,，也可能受制于人，所以最少采用三家的IP產(chǎn)品是必須的,，那么對于后端平臺供應商的選擇尤為重要,。
歷史經(jīng)驗表明，誰建設了視頻核心節(jié)點誰將占有最高點,、占有最多的市場份額,，所以視頻核心節(jié)點的建設應該由鐵道部統(tǒng)一規(guī)劃建設，所有權和開發(fā)權應歸屬國家,，而不是屬于某個企業(yè),，就顯得尤為重要。
視頻區(qū)域節(jié)點的平臺可以不統(tǒng)一,，但必須保證能夠互聯(lián)互通,，才能夠保證三級架構的實現(xiàn)，這點尤為重要,，也正是廣大設計專家,、建設者最頭痛的問題，到底如何解決,，這是一個大問題,。如果建設的不好將造成諸侯割據(jù)格局，就達不到最終的效果,。
協(xié)議困局
視頻監(jiān)控系統(tǒng)中有兩個比較重要的協(xié)議,，或者說是標準，那就是圖像的編解碼標準(比如H.264和MPEG4,、MJPEG)和傳輸控制協(xié)議,。
通常情況下，大部分產(chǎn)品都遵循了H.264和MPEG4的圖像壓縮標準,，即使全部采用了H.264的標準也很難保證互聯(lián)互通,，用一套軟件平臺兼容所有的攝像機,，畢竟視頻信號在壓縮的過程中每個公司打包的原理和方式不同，加上有些攝像機有一些獨特的設置和控制參數(shù),，造成了網(wǎng)絡攝像機之間的互不兼容,，這是標準的困局。
云臺型攝像機主要靠控制協(xié)議完成對攝像機的控制,，在模擬監(jiān)控系統(tǒng)中控制協(xié)議就沒有達成統(tǒng)一的標準,，到了網(wǎng)絡監(jiān)控系統(tǒng)中，這種云臺的控制協(xié)議更是每個廠家都有自己的一套獨特的方法,，給云臺攝像機的控制兼容性帶來了無盡的麻煩,，這是市場大環(huán)境使然，也是一種困局,。
功能困局
高鐵視頻監(jiān)控的特點決定了需求上有幾個明顯的功能要求：
◆全天候監(jiān)控：如果攝像機安裝在戶外,，如果一天中有12個小時看不到圖像，那么這個監(jiān)控系統(tǒng)就存在50%的監(jiān)控真空時段,，尤其是對北方地區(qū)夜間更長的地區(qū)來說簡直就是噩夢,，所以大量的熱成像攝像機、紅外攝像機,、低照度攝像機的需求是比較明顯的,，但熱成像攝像機的價格居高不下。另外一個功能要求就是攝像機要適應非常復雜的工作環(huán)境：高溫,、超低溫(可能零下三十度),、雷電(經(jīng)常發(fā)生)、臺風,，這些環(huán)境因素對攝像機的要求是非常高的,，對那些非常惡劣的環(huán)境要求，目前還沒有非常好的解決方案,。
◆無人值守：由于鐵路沿線距離非常遠，如果一個攝像頭故障維修成本非常高,，所以對攝像機的質(zhì)量和穩(wěn)定性要求特別高,。
◆視頻分析：視頻分析目前被廣泛應用于高鐵視頻監(jiān)控當中去，可以實現(xiàn)虛擬周界,、虛擬劃線,、遺留物探測、非法入侵等功能,，大大減輕了人力工作,，尤其是對這么大的高鐵監(jiān)控系統(tǒng)來講，效率提高了不少,，但視頻分析應用與鐵路環(huán)境,，還是有一些誤報的情況存在,，如發(fā)生狂風暴雨等極端惡劣天氣、分析功能會大受影響,。
◆視頻監(jiān)控系統(tǒng)通常要和入侵報警系統(tǒng)進行集成,，當發(fā)生警情的時候，可以自動的調(diào)用視頻信號,、打開背景燈光,、警笛等，這就要求視頻監(jiān)控設備具有一定的報警接入能力,。
◆視頻監(jiān)控系統(tǒng)需要和其它系統(tǒng)進行集成和聯(lián)動：比方說和門禁系統(tǒng),、信號傳輸系統(tǒng)、環(huán)境監(jiān)控系統(tǒng)進行集成和聯(lián)動,，尤其在鐵路系統(tǒng)建設了應急指揮系統(tǒng),，那么視頻信號就格外顯得重要，那這種集成將會更加的深入,、聯(lián)動關系將會更加的復雜,，這些都是高鐵視頻監(jiān)控的功能困境。
集成商困局
設備供應商趨之若騖,，系統(tǒng)集成商也不例外,。按照招投標法的規(guī)定，超過一定金額的政府項目是要舉行招標活動的,，合格的供應商最少3家,，大型項目要求的投標者更多，絕對不允許一,、兩家企業(yè)壟斷市場,，但對于高鐵視頻監(jiān)控系統(tǒng)來講，集成商越少,，兼容性,、互聯(lián)互通性才會越好，才會有集中優(yōu)勢,，不過八仙過海,、各顯神通，每個集成商都想吃這塊大蛋糕,，估計最終參與高鐵安防監(jiān)控的集成商絕對不是個位數(shù),，這也算是一種困局吧。
筆者說這么多的困局,，并不是想給高鐵安防系統(tǒng)的建設潑冷水,，只是提一些思路和建議，供大家參考,。最終希望高鐵能夠建立成一個大一統(tǒng)的平臺,、也希望高鐵系統(tǒng)能夠培養(yǎng)幾個大型的安防平臺集成商和運營商,，讓中國的解決方案提供商看到未來的希望，而不只是掌握在少數(shù)外資巨頭手里,。