请教一下----停车场...

<p>请问一下目前停车场管理系统有没有采用CAN总线的?</p><p>采用CAN总线有没有什么优势!目前有个项目传输距离</p><p>比较远,用485实现不了,听朋友说CAN总线可以实现.</p><p>本人对CAN总线不是很了解,请各位高手指点一下.</p><p>在线求教!</p>

<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 18pt; TEXT-INDENT: -18pt; mso-list: l0 level1 lfo1; tab-stops: list 18.0pt;"><font face="Times New Roman"><span lang="EN-US" style="mso-bidi-font-size: 10.5pt; mso-fareast-font-family: &quot;Times New Roman&quot;;"><span style="mso-list: Ignore;">楼主你好:</span></span></font></p><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';"><span lang="EN-US" style="mso-bidi-font-size: 10.5pt; mso-fareast-font-family: &quot;Times New Roman&quot;;"><span style="mso-list: Ignore;"><font face="Times New Roman"><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 21pt; TEXT-INDENT: -21pt; mso-list: l1 level1 lfo1; tab-stops: list 21.0pt;"><span lang="EN-US" style="COLOR: red; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 宋体;"><span style="mso-list: Ignore;"></span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 18pt; TEXT-INDENT: -18pt; mso-list: l0 level1 lfo2; tab-stops: list 18.0pt;"><span lang="EN-US" style="mso-bidi-font-size: 10.5pt; mso-fareast-font-family: &quot;Times New Roman&quot;;"><span style="mso-list: Ignore;">1、<span style="FONT: 7pt &quot;Times New Roman&quot;;">&nbsp; </span></span></span><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;;">脱机运行分为两种：第一种固定用户脱机运行，本系统基本没有临时用户进出，也不对临时用户进行收费，指与控制系统通讯的电脑在开与不开的情况下，固定用户都可以正常的运行，当电脑关闭的时候可以将进出信息保存在控制器中，当电脑开机时进出记录信息自动上传；第二种是临时用户脱机收费运行，是指收费型的停车场系统在特殊情况下，关闭电脑后，停车场能够继续实现（除图像对比、记录查询以外）停车场收费管理功能；本系统包含对固定用户及临时用户脱机情款下的正常运行；</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 18pt; TEXT-INDENT: -18pt; mso-list: l0 level1 lfo2; tab-stops: list 18.0pt;"><span lang="EN-US" style="mso-bidi-font-size: 10.5pt; mso-fareast-font-family: &quot;Times New Roman&quot;;"><span style="mso-list: Ignore;">2、<span style="FONT: 7pt &quot;Times New Roman&quot;;">&nbsp; </span></span></span><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;;">锐方达的</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;">RD2000/NT2</span><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;;">控制系统可以实现固定用户的脱机运行，</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;">RD3000/NT1</span><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;;">中</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;">CAN</span><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;;">系列脱机型停车场管理系统可以实现脱机收费运行；</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 18pt; TEXT-INDENT: -18pt; mso-list: l0 level1 lfo2; tab-stops: list 18.0pt;"><span lang="EN-US" style="mso-bidi-font-size: 10.5pt; mso-fareast-font-family: &quot;Times New Roman&quot;;"><span style="mso-list: Ignore;">3、<span style="FONT: 7pt &quot;Times New Roman&quot;;">&nbsp; </span></span></span><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;;">根据不通的要求，可以采用以上两种脱机运行的方式，脱机运行不能实现图像对比、以及进出记录查询功能，只能作为一种停车场应急的措施进行处理，一般情况下，在收费型停车场系统中，当电脑故障时，由人工发卡并记录车牌的人工临时收费肯定要比自动脱机收费要安全可靠的多（因为人工记录车牌可以严密的核对车卡对应保障进出车辆的安全）</span></p></font></span></span><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 18pt; TEXT-INDENT: -18pt; mso-list: l0 level1 lfo2; tab-stops: list 18.0pt;">二:锐方达的联机版:</p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 18pt; TEXT-INDENT: -18pt; mso-list: l0 level1 lfo1; tab-stops: list 18.0pt;"><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';"><font face="Times New Roman">锐方达科技有限公司生立的</font>系统主板是以</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">422</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">工业通讯方式，有几点好处：距离远（</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">3</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">～</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">5</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">公里）、稳定（抗干扰能力强）</span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">.</span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';"><span style="COLOR: red; mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">&nbsp;</font></span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 18pt; TEXT-INDENT: -18pt; mso-list: l0 level1 lfo1; tab-stops: list 18.0pt;"><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';"><span style="COLOR: red; mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">所以楼主可以采用联机版的也是不错的</font></span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 18pt; TEXT-INDENT: -18pt; mso-list: l0 level1 lfo1; tab-stops: list 18.0pt;"><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';"><span style="COLOR: red; mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">距离可以达到那么远&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 有需要请加278702638&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 13928482108</font></span></span></p></span>

<p>深圳锐方达科技有限公司</p><p><a href="http://www.rfdkj.com">www.rfdkj.com</a></p><p>qq278702638</p><p>13928482108</p><p></p>

<span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">422</font></span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'times new roman'; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: 'times new roman';">工业通讯方式，有几点好处：距离远（</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">3</font></span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'times new roman'; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: 'times new roman';">～</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">5</font></span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'times new roman'; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: 'times new roman';">公里）?没听说过,也许是我看花眼了</span>

<p>通讯距离远，指的是设备到电脑。没有必要用CAN，可以增加485驱动器</p>