RS485控制器和TCP控制器的比较...

<p class="unnamed1" style="MARGIN: auto 0cm;"><font size="2"><strong><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-bidi-font-family: 宋体; mso-hansi-font-family: ˎ̥;">优缺点比较</span></strong><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥;">：</span></font></p><p class="unnamed1" style="MARGIN: auto 0cm;"><font size="2"><span lang="EN-US"><font face="宋体, MS Song">RS485</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥;">控制器的优点：</span></font></p><p class="unnamed1" style="MARGIN: auto 0cm;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥;"><font size="2">成本比较低廉，单独组网，不会受到其他设备的共用网络的干扰。</font></span></p><p class="unnamed1" style="MARGIN: auto 0cm;"><font size="2"><span lang="EN-US"><font face="宋体, MS Song">RS485</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥;">控制器的缺点：</span></font></p><p class="unnamed1" style="MARGIN: auto 0cm;"><font size="2"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥;">组网数量有限，一般在</span><span lang="EN-US"><font face="宋体, MS Song">1000</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥;">台以内最多，设备越多网络越复杂，受到干扰越大。组网范围有限，一般只能在几百米范围内。</span></font></p><p class="unnamed1" style="MARGIN: auto 0cm;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥;"><font size="2">通讯速度比较慢，对于过万人，数百个门的系统，上传权限，下载记录等操作速度比较慢。</font></span><span lang="EN-US"><font face="宋体, MS Song" size="2">&nbsp;</font></span></p><p class="unnamed1" style="MARGIN: auto 0cm;"><font size="2"><span lang="EN-US"><font face="宋体, MS Song">TCP/IP </font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥;">控制器的优点：</span></font></p><p class="unnamed1" style="MARGIN: auto 0cm;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥;"><font size="2">采用国际标准的流行通讯协议，先进性和性能都比较好，好多年都不会被淘汰。组网数量无限制，组网范围广，可以跨地区，甚至跨国界。</font></span></p><p class="unnamed1" style="MARGIN: auto 0cm;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥;"><font size="2">通讯速度快，适合过万人，过百门的门禁系统。通讯质量稳定，不容易受到外界干扰。如果用户已经有局域网等网络可以不用重新铺设网络，利用现有网络组网。</font></span></p><p class="unnamed1" style="MARGIN: auto 0cm;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥;"><font size="2">缺点：</font></span><font size="2"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥;">成本会稍高于</span><span lang="EN-US"><font face="宋体, MS Song">RS485</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥;">控制器。<span style="FONT-SIZE: 13.5pt; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-bidi-font-family: &quot;Times New Roman&quot;; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-font-kerning: 1.0pt;">慧川公司是专业安防工程商</span><span lang="EN-US" style="FONT-SIZE: 13.5pt; FONT-FAMILY: &quot;Times New Roman&quot;; mso-fareast-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-font-kerning: 1.0pt;">,</span><span style="FONT-SIZE: 13.5pt; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-bidi-font-family: &quot;Times New Roman&quot;; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-font-kerning: 1.0pt;">大型联网门禁系统、考勤系统、监控系统、</span><span lang="EN-US" style="FONT-SIZE: 13.5pt; FONT-FAMILY: &quot;Times New Roman&quot;; mso-fareast-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-font-kerning: 1.0pt;">PORIS</span><span style="FONT-SIZE: 13.5pt; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-bidi-font-family: &quot;Times New Roman&quot;; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-font-kerning: 1.0pt;">门禁系统、</span><span lang="EN-US" style="FONT-SIZE: 13.5pt; FONT-FAMILY: &quot;Times New Roman&quot;; mso-fareast-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-font-kerning: 1.0pt;">BIO</span><span style="FONT-SIZE: 13.5pt; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-bidi-font-family: &quot;Times New Roman&quot;; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-font-kerning: 1.0pt;">指纹门禁系统、</span><span lang="EN-US" style="FONT-SIZE: 13.5pt; FONT-FAMILY: &quot;Times New Roman&quot;; mso-fareast-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-font-kerning: 1.0pt;">HID</span><span style="FONT-SIZE: 13.5pt; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-bidi-font-family: &quot;Times New Roman&quot;; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-font-kerning: 1.0pt;">门禁系统、</span><span lang="EN-US" style="FONT-SIZE: 13.5pt; FONT-FAMILY: &quot;Times New Roman&quot;; mso-fareast-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-font-kerning: 1.0pt;">SOYAL</span><span style="FONT-SIZE: 13.5pt; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-bidi-font-family: &quot;Times New Roman&quot;; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-font-kerning: 1.0pt;">门禁系统、</span><span lang="EN-US" style="FONT-SIZE: 13.5pt; FONT-FAMILY: &quot;Times New Roman&quot;; mso-fareast-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-font-kerning: 1.0pt;">IGUARD</span><span style="FONT-SIZE: 13.5pt; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-bidi-font-family: &quot;Times New Roman&quot;; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-font-kerning: 1.0pt;">指纹门禁系统、单门门禁系统、门禁考勤、门禁系统控制器、防盗报警、指纹考勤、指纹门禁、智能消费、电子巡更、智能停车场、三辊闸以及各类自动门产品。<a href="http://www.hckj.com">www.hckj.com</a></span></span></font></p>

有没有用到485转TCP/IP模块呀?

<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 20pt; mso-line-height-rule: exactly;"><b><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">基于</span></b><b><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">TCP/IP</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">的网络门禁控制器</span></b><font face="Times New Roman"><b><span style="mso-bidi-font-size: 10.5pt;">
                                </span></b><b><span style="FONT-SIZE: 12pt;"><span style="mso-spacerun: yes;">&nbsp;</span></span></b></font><span style="FONT-FAMILY: 宋体;">传统的单<span lang="EN-US">RS485</span>，或者改良的双<span lang="EN-US">RS485</span>、<span lang="EN-US">RS485+TCP/IP</span>网络转换器的系统组网方式，都不符合大规模门禁系统对数据实时响应，协议标准化的要求。<span lang="EN-US"><br clear="all"/></span>本方案采用了具有<span lang="EN-US">TCP/IP</span>网络接口直联功能的门禁控制器，从而保证了事件上传的<b style="mso-bidi-font-weight: normal;">实时性</b>和<b style="mso-bidi-font-weight: normal;">协议的标准化</b>，这也符合门禁系统技术发展的潮流。是本设计的一个重要特色。<span lang="EN-US"><p></p></span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 20pt; mso-line-height-rule: exactly;"><b><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">基于</span></b><b><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">TCP/IP</font></span></b><b><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">的视频联动</span></b><b><span style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">
                                </font></span></b><span style="FONT-FAMILY: 宋体;"><span style="mso-spacerun: yes;">&nbsp;</span>顺应数字化安防的发展趋势，本大厦的<span lang="EN-US">CCTV</span>监控采用了数字监控系统的新技术，而本设计方案中的门禁系统，具有支持数字视频服务器（编码器）的功能，与数字监控系统同时实现从设备协议层到软件数据库层的双重数据交换功能。这是绝大多数门禁系统目前还不具备的技术。这是本方案的又一亮点。<span lang="EN-US"><p></p></span></span></p>

那有没有想过，这个TCP/IP的门禁容易中毒呢，还有通过网络控制这个门禁呢，他又好也是有坏的。