<p class="" style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>几乎每位朋友安装监控时，都会出现一些大大小小的故障，一个最频率的现象，监控安装好后，总有两路左右不显示，然后就不断的找原因、、、。
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255); height: 0px;”>
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>监控摄像头安装看似简单，但却是一个复杂的问题，稍有差池，都会影响设备的正常使用，本期弱电行业网总结了18个弱电监控安装的基础知识，安装监控前，这18个问题<span style="margin: 0px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-style: inherit; font-variant: inherit; font-weight: 700; font-stretch: inherit; font-size: inherit; line-height: inherit; font-family: inherit; vertical-align: baseline;”>必须烂熟于胸。
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255); height: 0px;”>
<p class="pgc-img-caption" style="margin-top: 18px; margin-bottom: 18px; padding: 0px 0px 0px 16px; box-sizing: border-box; outline: none; border: 0px; font-style: inherit; font-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: 12px; line-height: 30px; font-family: inherit; vertical-align: baseline; position: relative; color: rgb(153, 153, 153); overflow: hidden;”>
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255); height: 0px;”>
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>1、摄像机怎么更改IP？
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>（1）从电脑浏览器里打开摄像机的管理界面，找到网络选项，填上需更改的地址；
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>（2）从NVR里面，搜到摄像机之后，点“编辑”输入更改的地址。
<p class="pgc-img-caption" style="margin-top: 18px; margin-bottom: 18px; padding: 0px 0px 0px 16px; box-sizing: border-box; outline: none; border: 0px; font-style: inherit; font-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: 12px; line-height: 30px; font-family: inherit; vertical-align: baseline; position: relative; color: rgb(153, 153, 153); overflow: hidden;”>
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>当然，海康的也可以通过<span style="margin: 0px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-style: inherit; font-variant: inherit; font-weight: 700; font-stretch: inherit; font-size: inherit; line-height: inherit; font-family: inherit; vertical-align: baseline;”>SADP软件批量修改ip地址。
<p class="pgc-img-caption" style="margin-top: 18px; margin-bottom: 18px; padding: 0px 0px 0px 16px; box-sizing: border-box; outline: none; border: 0px; font-style: inherit; font-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: 12px; line-height: 30px; font-family: inherit; vertical-align: baseline; position: relative; color: rgb(153, 153, 153); overflow: hidden;”>
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255); height: 0px;”>
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>2、镜头毫米数怎么确定？
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>一般情况是根据场所需要的距离除以2再除以1000，得出镜头毫米数，再根据所需照摄角度，适当调整毫米数。
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>摄像头镜头焦距有2.8mm/4mm/6mm/8mm/12mm等多种，每个产品系列均可以选择镜头焦距，可以满足室内外各种环境的拍摄需求。一般来说，焦距越大，视场角越小，而监控距离越远。
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255); height: 0px;”>
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”><span style="margin: 0px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-style: inherit; font-variant: inherit; font-weight: 700; font-stretch: inherit; font-size: inherit; line-height: inherit; font-family: inherit; vertical-align: baseline;”>总结就是下面几张图：
<p class="pgc-img-caption" style="margin-top: 18px; margin-bottom: 18px; padding: 0px 0px 0px 16px; box-sizing: border-box; outline: none; border: 0px; font-style: inherit; font-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: 12px; line-height: 30px; font-family: inherit; vertical-align: baseline; position: relative; color: rgb(153, 153, 153); overflow: hidden;”>
<p class="pgc-img-caption" style="margin-top: 18px; margin-bottom: 18px; padding: 0px 0px 0px 16px; box-sizing: border-box; outline: none; border: 0px; font-style: inherit; font-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: 12px; line-height: 30px; font-family: inherit; vertical-align: baseline; position: relative; color: rgb(153, 153, 153); overflow: hidden;”>
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”><span style="margin: 0px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-style: inherit; font-variant: inherit; font-weight: 700; font-stretch: inherit; font-size: inherit; line-height: inherit; font-family: inherit; vertical-align: baseline;”>以下建议是可以看清人脸的照射距离
<p class="pgc-img-caption" style="margin-top: 18px; margin-bottom: 18px; padding: 0px 0px 0px 16px; box-sizing: border-box; outline: none; border: 0px; font-style: inherit; font-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: 12px; line-height: 30px; font-family: inherit; vertical-align: baseline; position: relative; color: rgb(153, 153, 153); overflow: hidden;”>
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255); height: 0px;”>
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>放到实际使用场景中，<span style="margin: 0px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-style: inherit; font-variant: inherit; font-weight: 700; font-stretch: inherit; font-size: inherit; line-height: inherit; font-family: inherit; vertical-align: baseline;”>2.8mm焦距适用于电梯、楼梯等较为狭小的环境，4mm适用于会议室、商店稍大一些的场景等，而停车场、工厂车间、庭院等更开阔的地方则可以选用6mm以上的镜头；具体选择可以根据需要而定。
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255); height: 0px;”>
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>3、调焦摄像机在哪里调节？
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>摄像机侧面或尾部都有“FOCUS”“ZOOM”字样，用螺丝刀调节即可。
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255); height: 0px;”>
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>4、磁盘阵列怎么选型？
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>先计算出全部前端摄像机图像所需的存储容量，除以单块硬盘容量，得出盘位数，再加上<span style="margin: 0px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-style: inherit; font-variant: inherit; font-weight: 700; font-stretch: inherit; font-size: inherit; line-height: inherit; font-family: inherit; vertical-align: baseline;”>RAID所需管理盘数量，热备盘数量，得出阵列盘位数。
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255); height: 0px;”>
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>这里面列出了常用阵列类型至<span style="margin: 0px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-style: inherit; font-variant: inherit; font-weight: 700; font-stretch: inherit; font-size: inherit; line-height: inherit; font-family: inherit; vertical-align: baseline;”>少所需硬盘的数量：
<p class="pgc-img-caption" style="margin-top: 18px; margin-bottom: 18px; padding: 0px 0px 0px 16px; box-sizing: border-box; outline: none; border: 0px; font-style: inherit; font-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: 12px; line-height: 30px; font-family: inherit; vertical-align: baseline; position: relative; color: rgb(153, 153, 153); overflow: hidden;”>
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255); height: 0px;”>
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>5、网络球机通过什么方式控制？
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>NVR、电脑客户端、网络键盘，都可以对网络球机进行控制。
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255); height: 0px;”>
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>6、如何根据实际情况配置光纤？
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>根据系统光传输设备需要的总芯数、传输模式来选择光纤类型和芯数。根据所需传输的距离确定光纤数量。
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”><span style="margin: 0px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-style: inherit; font-variant: inherit; font-weight: 700; font-stretch: inherit; font-size: inherit; line-height: inherit; font-family: inherit; vertical-align: baseline;”>例如：
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>按照IBDN标准，一般推荐每个<span style="margin: 0px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-style: inherit; font-variant: inherit; font-weight: 700; font-stretch: inherit; font-size: inherit; line-height: inherit; font-family: inherit; vertical-align: baseline;”>建筑物内通讯间为12芯，<span style="margin: 0px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-style: inherit; font-variant: inherit; font-weight: 700; font-stretch: inherit; font-size: inherit; line-height: inherit; font-family: inherit; vertical-align: baseline;”>建筑间用24芯。
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255); height: 0px;”>
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”><span style="margin: 0px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-style: inherit; font-variant: inherit; font-weight: 700; font-stretch: inherit; font-size: inherit; line-height: inherit; font-family: inherit; vertical-align: baseline;”>可以这样去考虑：
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>先清楚知道该层布线点的数量，算出交换机的台数，交换机之间连接是堆叠还是不堆叠。
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>如果堆叠，核心交换机为双机热备冗余的话，6芯就够用了（2台核心各用2芯，2芯冗余）。
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>如果不堆叠，一台交换机要4芯，多少台交换机乘以4加上4芯的冗余，就可以了。
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255); height: 0px;”>
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”><span style="margin: 0px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-style: inherit; font-variant: inherit; font-weight: 700; font-stretch: inherit; font-size: inherit; line-height: inherit; font-family: inherit; vertical-align: baseline;”>经验做法：
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>每个<span style="margin: 0px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-style: inherit; font-variant: inherit; font-weight: 700; font-stretch: inherit; font-size: inherit; line-height: inherit; font-family: inherit; vertical-align: baseline;”>楼层配线间（水平配线机柜），设一根光纤，一般为六芯，两芯使用、两芯备用、两芯冗余；也有使用八芯光纤的。
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255); height: 0px;”>
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>7、在多远的距离下配置光纤收发器？
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>超出网线信号传输距离之后（一般100米），就该考虑用光纤传输了，用光纤收发器成本也比较低，当然如果<span style="margin: 0px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-style: inherit; font-variant: inherit; font-weight: 700; font-stretch: inherit; font-size: inherit; line-height: inherit; font-family: inherit; vertical-align: baseline;”>是100-200米的距离的话，中间<span style="margin: 0px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-style: inherit; font-variant: inherit; font-weight: 700; font-stretch: inherit; font-size: inherit; line-height: inherit; font-family: inherit; vertical-align: baseline;”>加个普通交换机也是可以解决的；
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255); height: 0px;”>
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>8、录像机如何调试远程？
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>（1）在主菜单里进入系统设置——网络设置——DDNS——启用DDNS打钩——DDNS类型里选择合适的域名服务站——输入在此网址注册的用户名、密码——确定。
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>（2）进入录像机上网接入的路由器，找到“<span style="margin: 0px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-style: inherit; font-variant: inherit; font-weight: 700; font-stretch: inherit; font-size: inherit; line-height: inherit; font-family: inherit; vertical-align: baseline;”>转发规则”选项，添加转发端口然后保存。
<p class="pgc-img-caption" style="margin-top: 18px; margin-bottom: 18px; padding: 0px 0px 0px 16px; box-sizing: border-box; outline: none; border: 0px; font-style: inherit; font-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: 12px; line-height: 30px; font-family: inherit; vertical-align: baseline; position: relative; color: rgb(153, 153, 153); overflow: hidden;”>
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255); height: 0px;”>
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>9、监控硬盘存储量如何计算？
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>记住这张表就行了。
<p class="pgc-img-caption" style="margin-top: 18px; margin-bottom: 18px; padding: 0px 0px 0px 16px; box-sizing: border-box; outline: none; border: 0px; font-style: inherit; font-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: 12px; line-height: 30px; font-family: inherit; vertical-align: baseline; position: relative; color: rgb(153, 153, 153); overflow: hidden;”>
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255); height: 0px;”>
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>10、平台一体机和解码器的区别？
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>平台一体机集成<span style="margin: 0px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-style: inherit; font-variant: inherit; font-weight: 700; font-stretch: inherit; font-size: inherit; line-height: inherit; font-family: inherit; vertical-align: baseline;”>解码、管理、拼接等功能于一体的设备；解码器只是解码、上墙（拼接、画面分割），可根据用户的功能需求进行选择。
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255); height: 0px;”>
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>11、流媒体服务器的作用？
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>大量客户端或WEB访问监控摄像机的时候，一般的录像机承受不了太大的网络压力，这时候需要<span style="margin: 0px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-style: inherit; font-variant: inherit; font-weight: 700; font-stretch: inherit; font-size: inherit; line-height: inherit; font-family: inherit; vertical-align: baseline;”>流媒体服务器做一下<span style="margin: 0px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-style: inherit; font-variant: inherit; font-weight: 700; font-stretch: inherit; font-size: inherit; line-height: inherit; font-family: inherit; vertical-align: baseline;”>转发，把客户端的访问压力转到服务器上来。
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255); height: 0px;”>
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>12、在使用磁盘阵列的情况下还需要录像机吗？
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>磁盘阵列的存储功能，数据往里面存储，需要有存储服务器来管理。一般来讲，有磁盘阵列就不需要录像机了。
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255); height: 0px;”>
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>13、LED灯和点阵灯的区别？
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>两种灯本质上是一样的，点阵灯比普通LED灯功率更大，使用寿命更长。
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255); height: 0px;”>
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>14、IPC添加后显示不在线怎么办？
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>（1）IPC的IP地址设置跟NVR地址不在同一网段。
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>（2）可以ping一下看下丢包情况，是否是网络连接不畅，可以检查网线的8芯是否全部测通或所用网线质量以及网线距离。
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255); height: 0px;”>
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>15、为什么使用手机客户端软件预览图像黑屏？
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>（1）服务端设备不在线。
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>（2）客户端添加设备不正确，IP地址、端口、用户名、密码错误。
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255); height: 0px;”>
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>16、什么时候会用到编码器？编码器是NVS么？
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>编码器也叫视频编码器，其作用是把<span style="margin: 0px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-style: inherit; font-variant: inherit; font-weight: 700; font-stretch: inherit; font-size: inherit; line-height: inherit; font-family: inherit; vertical-align: baseline;”>模拟摄像机视频信号编码成<span style="margin: 0px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-style: inherit; font-variant: inherit; font-weight: 700; font-stretch: inherit; font-size: inherit; line-height: inherit; font-family: inherit; vertical-align: baseline;”>网络信号。当模拟摄像机视频信号需要接入到网络系统中的时候，需要用到编码器。
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255); height: 0px;”>
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>17、摄像机集中供电的布线方法？
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>所谓集中供电，是指所有的前端设备用电，都是从后端中控室统一提供。分两种情况：
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>（1）集中提供市电到前端，摄像机的电源适配器放在摄像机端，这种情况布线的时候，电源线要跟视频信号线分开，电源线需穿JDG管保护。
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>（2）集中提供摄像机所需的直流电源到前端，摄像机电源适配器放在后端控制室，这种情况布线的时候，电源线和视频线可以共走同一线路，要求不严格的情况下，可用PVC管。同时注意直流电传输距离和线径关系，传输越远，所需线径越大。
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255); height: 0px;”>
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>18、影响网络监控运行稳定的最常见因素有哪些呢？
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>（1）网络带宽及<span style="margin: 0px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-style: inherit; font-variant: inherit; font-weight: 700; font-stretch: inherit; font-size: inherit; line-height: inherit; font-family: inherit; vertical-align: baseline;”>交换机的配置。
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>（2）网线，<span style="margin: 0px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-style: inherit; font-variant: inherit; font-weight: 700; font-stretch: inherit; font-size: inherit; line-height: inherit; font-family: inherit; vertical-align: baseline;”>传输线缆的质量好坏有关系。
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>（3）<span style="margin: 0px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-style: inherit; font-variant: inherit; font-weight: 700; font-stretch: inherit; font-size: inherit; line-height: inherit; font-family: inherit; vertical-align: baseline;”>水晶头等辅材的质量及施工人员的工艺水平。
<p style="margin-top: 18px; margin-bottom: 18px; padding: 0px; box-sizing: border-box; outline: none; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 18px; line-height: 30px; font-family: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, Arial, sans-serif; vertical-align: baseline; color: rgb(93, 93, 93); white-space: normal; background-color: rgb(255, 255, 255);”>（4）主流硬件的选择，拓扑线路规划，工程的综合施工与测试情况。