数字可视对讲系统的采购标准 (转贴)...

 
<p style="TEXT-JUSTIFY: inter-ideograph; TEXT-ALIGN: justify; LINE-HEIGHT: 18.75pt; BACKGROUND: white"><strong><span style="FONT-FAMILY: PMingLiU; FONT-SIZE: 9pt; mso-bidi-font-family: 宋体; mso-fareast-language: ZH" lang="ZH">如何识别真假数字对讲系统</span></strong><span style="FONT-FAMILY: PMingLiU; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-fareast-language: ZH" lang="EN-US">&nbsp;<br/></span><span style="FONT-FAMILY: PMingLiU; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-fareast-language: ZH" lang="ZH">就目前而言，数字可视对讲无论在市场上还是技术上，正处于加速发展时期，并越来越成为数字家庭的一个重要角色。其自身具备的三大要素：视频压缩、语音处理、网络传输，使得数字可视对讲与其他家庭多媒体产品互相融合。由于市场对数字产品的需求愈加旺盛，所以数字可视对讲已成为大势所趋。不少厂家也看到了数字可视对讲产品的优势，都想搭上这趟“淘金的列车”。国内对讲厂家也较早将目光聚焦于此，一些厂家已经生产销售数字可视对讲产品，一些厂家则仍处于研发阶段。由此，数字可视对讲产品市场比较混杂，半数字、假数字产品也充斥其中，使得数字可视对讲产品在用户心中大打折扣，仍然持观望态度。那么，该如何甄别数字可视系统的真假呢？主要从以下几点来辨别：</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-language: ZH" lang="EN-US"><?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></span></p>
<p style="TEXT-JUSTIFY: inter-ideograph; TEXT-ALIGN: justify; LINE-HEIGHT: 18.75pt; BACKGROUND: white"><span style="FONT-FAMILY: PMingLiU; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-fareast-language: ZH" lang="EN-US"><br/>1</span><span style="FONT-FAMILY: PMingLiU; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-fareast-language: ZH" lang="ZH">、首先要考察是<b style="mso-bidi-font-weight: normal">否采用标准的</b></span><b style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: PMingLiU; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-fareast-language: ZH" lang="EN-US">TCP/IP</span></b><b style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: PMingLiU; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-fareast-language: ZH" lang="ZH">协议</span></b><span style="FONT-FAMILY: PMingLiU; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-fareast-language: ZH" lang="ZH">，传输的音视频信号是否经过<b style="mso-bidi-font-weight: normal">编码压缩处理</b>后的数字信号。</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-language: ZH" lang="EN-US"><o:p></o:p></span></p>
<p style="TEXT-JUSTIFY: inter-ideograph; TEXT-ALIGN: justify; LINE-HEIGHT: 18.75pt; BACKGROUND: white"><span style="FONT-FAMILY: PMingLiU; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-fareast-language: ZH" lang="EN-US">&nbsp;<br/>2</span><span style="FONT-FAMILY: PMingLiU; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-fareast-language: ZH" lang="ZH">、<b style="mso-bidi-font-weight: normal">看中间设备、联网设备是否通用</b>。目前，有的采用专用的交换机，而有的将转换器改称交换机等，这些都需要注意辨别。一般来说，真正的联网中间设备都可以直接从市面上购买到，如果只能从对讲系统供应商那里购买的话，那肯定不是真正的数字化产品，真正的数字化产品是标准的、通用的。</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-language: ZH" lang="EN-US"><o:p></o:p></span></p>
<p style="TEXT-JUSTIFY: inter-ideograph; TEXT-ALIGN: justify; LINE-HEIGHT: 18.75pt; BACKGROUND: white"><span style="FONT-FAMILY: PMingLiU; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-fareast-language: ZH" lang="EN-US"><br/>3</span><span style="FONT-FAMILY: PMingLiU; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-fareast-language: ZH" lang="ZH">、<b style="mso-bidi-font-weight: normal">看接口</b>。在购买产品时，我们要对门口机、中心管理机、室内机以及围墙机的接口仔细观察，看是否采用</span><span style="FONT-FAMILY: PMingLiU; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-fareast-language: ZH" lang="EN-US">RJ-45</span><span style="FONT-FAMILY: PMingLiU; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-fareast-language: ZH" lang="ZH">接口</span><span style="FONT-FAMILY: PMingLiU; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-fareast-language: ZH; mso-fareast-font-family: 宋体" lang="EN-US">(</span><span style="FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-fareast-language: ZH; mso-ascii-font-family: PMingLiU; mso-hansi-font-family: PMingLiU" lang="ZH">即网线接口</span><span style="FONT-FAMILY: PMingLiU; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-fareast-language: ZH; mso-fareast-font-family: 宋体" lang="EN-US">)</span><span style="FONT-FAMILY: PMingLiU; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-fareast-language: ZH" lang="ZH">，如果不是</span><span style="FONT-FAMILY: PMingLiU; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-fareast-language: ZH" lang="EN-US">RJ-45</span><span style="FONT-FAMILY: PMingLiU; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-fareast-language: ZH" lang="ZH">标准接口，则肯定不是数字对讲设备。</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-language: ZH" lang="EN-US"><o:p></o:p></span></p>
<p style="TEXT-JUSTIFY: inter-ideograph; TEXT-ALIGN: justify; LINE-HEIGHT: 18.75pt; BACKGROUND: white"><span style="FONT-FAMILY: PMingLiU; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-fareast-language: ZH" lang="EN-US"><br/></span><strong><span style="FONT-FAMILY: PMingLiU; FONT-SIZE: 9pt; mso-bidi-font-family: 宋体; mso-fareast-language: ZH" lang="ZH">采购数字可视对讲要点</span></strong><span style="FONT-FAMILY: PMingLiU; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-fareast-language: ZH" lang="EN-US">&nbsp;<br/></span><span style="FONT-FAMILY: PMingLiU; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-fareast-language: ZH" lang="ZH">楼宇对讲行业产品缺乏标准，许多产品不兼容，产品质量也参差不齐，因此，对于工程商和地产商来说，选购一款好的数字可视对讲系统是非常重要的。因此，用户可以根据以下几个要点来进行选购。</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-language: ZH" lang="EN-US"><o:p></o:p></span></p>
<p style="TEXT-JUSTIFY: inter-ideograph; TEXT-ALIGN: justify; LINE-HEIGHT: 18.75pt; BACKGROUND: white"><span style="FONT-FAMILY: PMingLiU; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-fareast-language: ZH" lang="EN-US"><br/>1</span><span style="FONT-FAMILY: PMingLiU; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-fareast-language: ZH" lang="ZH">、厂家的实力</span><span style="FONT-FAMILY: PMingLiU; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-fareast-language: ZH" lang="EN-US">&nbsp;<br/></span><span style="FONT-FAMILY: PMingLiU; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-fareast-language: ZH" lang="ZH">很多数字化对讲系统在样板房或演示厅里运行是好的，但在实际工程中可能无法验收。基于</span><span style="FONT-FAMILY: PMingLiU; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-fareast-language: ZH" lang="EN-US">TCP/IP</span><span style="FONT-FAMILY: PMingLiU; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-fareast-language: ZH" lang="ZH">的数字对讲往往存在声音、图像如何处理的难题，声音要做到回音消除，图像要做到延迟时间很小，这都不是那么简单的事情。因此，在购买产品之前，要考察该厂家是否有一支高水平的研发队伍，是否有一支高效的管理团队，是否做过一些具有代表性的工程项目。</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-language: ZH" lang="EN-US"><o:p></o:p></span></p>
<p style="TEXT-JUSTIFY: inter-ideograph; TEXT-ALIGN: justify; LINE-HEIGHT: 18.75pt; BACKGROUND: white"><span style="FONT-FAMILY: PMingLiU; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-fareast-language: ZH" lang="EN-US"><br/>2</span><span style="FONT-FAMILY: PMingLiU; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-fareast-language: ZH" lang="ZH">、系统稳定可靠</span><span style="FONT-FAMILY: PMingLiU; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-fareast-language: ZH" lang="EN-US">&nbsp;<br/></span><span style="FONT-FAMILY: PMingLiU; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-fareast-language: ZH" lang="ZH">任何一款产品，稳定可靠是最根本的。现在的小区户数上千户居多，甚至有上万户，如果系统不稳定，经常出现问题，将会严重影响社区居民生活。因此，数字对讲系统是否可靠运行，是考量稳定性的重要指标。因此，不仅要观看产品的演示，还要实地考察成熟的案例。有的系统在样板工程中运行良好，但并不代表在实际应用中仍然表现不错。在实际的工程中，环境的复杂可能是厂家都无法想象得到的，因此实地观摩实际案例，听听业主的声音，才会让您买得放心，住的舒心。</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-language: ZH" lang="EN-US"><o:p></o:p></span></p>
<p style="TEXT-JUSTIFY: inter-ideograph; TEXT-ALIGN: justify; LINE-HEIGHT: 18.75pt; BACKGROUND: white"><span style="FONT-FAMILY: PMingLiU; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-fareast-language: ZH" lang="EN-US"><br/>3</span><span style="FONT-FAMILY: PMingLiU; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-fareast-language: ZH" lang="ZH">、产品工艺设计</span><span style="FONT-FAMILY: PMingLiU; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-fareast-language: ZH" lang="EN-US">&nbsp;<br/></span><span style="FONT-FAMILY: PMingLiU; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-fareast-language: ZH" lang="ZH">由于对讲系统已经融入我们的生活，每天我们都会使用，因此，数字可视对讲系统的工艺外观的风格必须和家居风格接近。对讲系统产品也必须靠外观来打动用户，给用户留下好的印象。一般有实力的厂家，对于同一系列的产品会有多种颜色款式、结构设计款式，材质的选择也分高中低档，更重要的是设计理念，人性化的操作设计，会让用户感到非常贴心。</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-language: ZH" lang="EN-US"><o:p></o:p></span></p>
<p style="TEXT-JUSTIFY: inter-ideograph; TEXT-ALIGN: justify; LINE-HEIGHT: 18.75pt; BACKGROUND: white"><span style="FONT-FAMILY: PMingLiU; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-fareast-language: ZH" lang="EN-US">[nextpage]<br/>4</span><span style="FONT-FAMILY: PMingLiU; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-fareast-language: ZH" lang="ZH">、上乘的服务</span><span style="FONT-FAMILY: PMingLiU; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-fareast-language: ZH" lang="EN-US">&nbsp;<br/></span><span style="FONT-FAMILY: PMingLiU; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-fareast-language: ZH" lang="ZH">一流的企业，一流的服务。服务很大程度上影响了用户的最终决策，而且数字可视对讲系统刚开始进入市场，如果服务做不到位，用户可能会仍选用模拟可视对讲系统。这个服务包括售前服务，还包括售后的服务，售后需要对用户进行培训，并定期进行技术回访，询问产品是否有问题，为用户提供满意的服务，最终会赢得用户的信赖。</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-language: ZH" lang="EN-US"><o:p></o:p></span></p>

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