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<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21.75pt;"><shapetype id="_x0000_t75" stroked="f" filled="f" path="m@4@5l@4@11@9@11@9@5xe" opreferrelative="t" ospt="75" coordsize="21600,21600"><stroke joinstyle="miter"></stroke><formulas><f eqn="if lineDrawn pixelLineWidth 0"></f><f eqn="sum @0 1 0"></f><f eqn="sum 0 0 @1"></f><f eqn="prod @2 1 2"></f><f eqn="prod @3 21600 pixelWidth"></f><f eqn="prod @3 21600 pixelHeight"></f><f eqn="sum @0 0 1"></f><f eqn="prod @6 1 2"></f><f eqn="prod @7 21600 pixelWidth"></f><f eqn="sum @8 21600 0"></f><f eqn="prod @7 21600 pixelHeight"></f><f eqn="sum @10 21600 0"></f></formulas><path oconnecttype="rect" gradientshapeok="t" oextrusionok="f"></path><lock aspectratio="t" vext="edit"></lock></shapetype><shape id="_x0000_s1026" type="#_x0000_t75" style="MARGIN-TOP: 0.95pt; Z-INDEX: 1; LEFT: 0px; MARGIN-LEFT: 21.75pt; WIDTH: 145.05pt; POSITION: absolute; HEIGHT: 147.25pt; TEXT-ALIGN: left;"><imagedata otitle="" src="file:///C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp\msohtml1\01\clip_image001.png"></imagedata><wrap type="square"></wrap></shape><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">多网融合的概念早已提出。国家“十一五”规划中，也提到“加强宽带通信网、数字电视网和下一代互联网等信息基础设施建设，推进‘三网融合’”。</span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21.75pt;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">融合是把两个不同的事物合并成同一个实体。因此，从通信网络来讲，多网融合主要是指固定网络、移动网络、互联网、广电网融合于一体，满足通信业务融合、网络融合、终端融合、产业融合的需求。以多网融合为出发点进行灵活的客户接入，才是未来网络发展的方向。</span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21.75pt;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">居住区智能化中目前提出的“宽带一网通”，讲的“多网融合”主要是指智能化系统中的控制网与居住区内的宽带网融合，要求在物理上能共享宽带接入网的通信介质，业务上能成为宽带接入的内容之一，且希望网络运营商承担部分业务，以达到降低建造成本，减少物业管理公司运营维护的费用。无疑，这是居住区智能化系统一个重要的技术发展趋势。</span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US"><span style="mso-spacerun: yes;"><font face="Times New Roman"> </font></span></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">智能化系统中的控制网提供了居住区内安全防范、设备监控等的信息传输通道。采用“多网融合”技术，利用宽带接入网作为控制网，主要的优点是：</span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US"><span style="mso-spacerun: yes;"><font face="Times New Roman"> </font></span></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">（</span><span lang="EN-US"><font face="Times New Roman">1</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">）大大减化了控制网的布线，降低室内外的布线成本与线路的维护成本，提高了线路的可靠性与标准化程度；</span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US"><span style="mso-spacerun: yes;"><font face="Times New Roman"> </font></span></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">（</span><span lang="EN-US"><font face="Times New Roman">2</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">）提供了智能化系统新的设计思路与方法，可克服控制系统延续下来的原模式的一些缺点，即各子系统的协议不统一、联动困难，只好独立建设，独立成网等；</span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US"><span style="mso-spacerun: yes;"><font face="Times New Roman"> </font></span></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">（</span><span lang="EN-US"><font face="Times New Roman">3</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">）在物业管理中可以借助电信部门专业队伍的力量和相应的机制，也有利于开展增值服务；</span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US"><span style="mso-spacerun: yes;"><font face="Times New Roman"> </font></span></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">（</span><span lang="EN-US"><font face="Times New Roman">4</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">）采用基于</span><span lang="EN-US"><font face="Times New Roman">IP</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">技术的智能终端，可以提高产品的标准化程度，有利于不同厂家生产的产品互换，促进产业化。</span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21.75pt;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">居住者对通信的要求，希望可以在任何时间、任何地点与任何对象交互话音、数据、视频等信息。目前，没有一个网络能融合地提供“话音</span><span lang="EN-US"><font face="Times New Roman">(</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">固定和移动</span><span lang="EN-US"><font face="Times New Roman">)+</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">数据</span><span lang="EN-US"><font face="Times New Roman">+</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">视频”的服务。技术在进步，融合是关键。就居住区智能化领域来说．“宽带一网通”的提出对智能化系统的融合是一种技术进步，值得肯定。</span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21.75pt;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";"><span style="FONT-SIZE: 16pt; FONT-FAMILY: 幼圆;"><font size="3">摘自《智能建筑与城市信息》杂志<span lang="EN-US">2007</span>年第<span lang="EN-US">2</span>期<span lang="EN-US"><p></p></span></font></span></span></p> |
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