<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; clear: both; min-height: 1em; box-sizing: border-box !important; overflow-wrap: break-word !important;”><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; color: rgb(62, 62, 62); font-family: Optima-Regular, PingFangTC-light; font-size: 15px; letter-spacing: 0.544px; text-align: left; text-indent: 34px;”>在做弱电监控项目中，最常易遇到故障就是画面卡顿，这个基本上每天都会有不少的朋友问到，在我们弱电vip群中也经常讨论到，本期我们一起来看下网络摄像机画面卡顿的主要原因是什么？
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<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, “>
<span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; background-color: rgb(0, 0, 0); color: rgb(255, 255, 255);”><strong style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;”><span style="margin: 0px; padding: 0px; max-width: 100%; font-family: Optima-Regular, PingFangTC-light; font-size: 15px; letter-spacing: 0.544px; text-align: left; text-indent: 34px; box-sizing: border-box !important; overflow-wrap: break-word !important;”>原因一：<strong style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;”><span style="margin: 0px; padding: 0px; max-width: 100%; font-family: Optima-Regular, PingFangTC-light; font-size: 15px; letter-spacing: 0.544px; text-align: left; text-indent: 34px; box-sizing: border-box !important; overflow-wrap: break-word !important;”><strong style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;”><strong style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;”><strong style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;”><span style="margin: 0px; padding: 0px; max-width: 100%; font-family: Optima-Regular, PingFangTC-light; font-size: 15px; letter-spacing: 0.544px; text-align: left; text-indent: 34px; box-sizing: border-box !important; overflow-wrap: break-word !important;”>摄像机自身原因
<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; clear: both; min-height: 1em; box-sizing: border-box !important; overflow-wrap: break-word !important;”><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; color: rgb(62, 62, 62); font-family: Optima-Regular, PingFangTC-light; font-size: 15px; letter-spacing: 0.544px; text-align: left; text-indent: 34px;”>网络摄像机生产厂家本身技术存在缺陷，生产出来的的网络摄像机长时间运行后会出现延时比较大的现象，大大超过了国标要求的延时时间，给人感觉画面卡顿，只有给摄像机断电后才能恢复正常，对于这种情况建议大家选择大品牌的设备，而且售后有保障的监控产品品牌。
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<strong style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;”><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; text-align: left; font-family: Optima-Regular, PingFangTC-light; font-size: 15px; letter-spacing: 0.544px; text-indent: 34px; background-color: rgb(0, 0, 0); color: rgb(255, 255, 255);”>原因二：
<strong style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;”><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; text-align: left; font-family: Optima-Regular, PingFangTC-light; font-size: 15px; letter-spacing: 0.544px; text-indent: 34px; background-color: rgb(0, 0, 0); color: rgb(255, 255, 255);”>解码器的解码能力不足
<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; clear: both; min-height: 1em; box-sizing: border-box !important; overflow-wrap: break-word !important;”><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; color: rgb(62, 62, 62); font-family: Optima-Regular, PingFangTC-light; font-size: 15px; letter-spacing: 0.544px; text-align: left; text-indent: 34px;”>对于使用网络高清硬盘录像机显示存储的客户来说，选择的网络高清硬盘录像机的解码能力也会影响到画面的流畅性，如果连接画面超过解码器的最大解码能力，或者硬盘录像机选择的核心芯片本身处理能力不强，都会导致画面卡顿的现象。
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<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; clear: both; min-height: 1em; box-sizing: border-box !important; overflow-wrap: break-word !important;”><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; background-color: rgb(0, 0, 0); color: rgb(255, 255, 255);”><strong style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;”><span style="margin: 0px; padding: 0px; max-width: 100%; font-family: Optima-Regular, PingFangTC-light; font-size: 15px; letter-spacing: 0.544px; text-align: left; text-indent: 34px; box-sizing: border-box !important; overflow-wrap: break-word !important;”>原因三、NVR资源不足
<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; clear: both; min-height: 1em; box-sizing: border-box !important; overflow-wrap: break-word !important;”><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; color: rgb(62, 62, 62); font-family: Optima-Regular, PingFangTC-light; font-size: 15px; letter-spacing: 0.544px; text-align: left; text-indent: 34px;”>很多监控项目，大家喜欢将NVR满载，或者接入摄像机的像素过高，超出了NVR的能力，就会出现NVR资源不足，可能会引起画面卡顿或不显示，可以稍微降低码流或减少接入量来解决。
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<span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; background-color: rgb(0, 0, 0); color: rgb(255, 255, 255);”><strong style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;”><span style="margin: 0px; padding: 0px; max-width: 100%; font-family: Optima-Regular, PingFangTC-light; font-size: 15px; letter-spacing: 0.544px; text-align: left; text-indent: 34px; box-sizing: border-box !important; overflow-wrap: break-word !important;”>原因四：<strong style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;”><span style="margin: 0px; padding: 0px; max-width: 100%; font-family: Optima-Regular, PingFangTC-light; font-size: 15px; letter-spacing: 0.544px; text-align: left; text-indent: 34px; box-sizing: border-box !important; overflow-wrap: break-word !important;”>网线质量太差或距离太远
<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; clear: both; min-height: 1em; box-sizing: border-box !important; overflow-wrap: break-word !important;”><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; color: rgb(62, 62, 62); font-family: Optima-Regular, PingFangTC-light; font-size: 15px; letter-spacing: 0.544px; text-align: left; text-indent: 34px;”><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;”>使用的网线质量太差，不是采用无氧铜质材料。<span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;”>一般正规国标网线最远传输距离建议不要超过100米，而劣质网线的传输性能更会大<span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; background-color: rgba(9, 187, 7, 0.31);”>打<span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;”>折扣，如果采用了劣质网线，前期画面可能一切正常，后期随着线路的氧化衰减，容易导致信号传输丢包，时断时连，画面卡顿等现象。<span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;”>这种情况建议在施工中选择质量好的国标网线。
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<span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; color: rgb(255, 255, 255); background-color: rgb(0, 0, 0);”><strong style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;”><span style="margin: 0px; padding: 0px; max-width: 100%; font-family: Optima-Regular, PingFangTC-light; font-size: 15px; letter-spacing: 0.544px; text-align: left; text-indent: 34px; box-sizing: border-box !important; overflow-wrap: break-word !important;”>原因五：<strong style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;”><span style="margin: 0px; padding: 0px; max-width: 100%; font-family: Optima-Regular, PingFangTC-light; font-size: 15px; letter-spacing: 0.544px; text-align: left; text-indent: 34px; box-sizing: border-box !important; overflow-wrap: break-word !important;”><strong style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;”><strong style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;”><strong style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;”><span style="margin: 0px; padding: 0px; max-width: 100%; font-family: Optima-Regular, PingFangTC-light; font-size: 15px; letter-spacing: 0.544px; text-align: left; text-indent: 34px; box-sizing: border-box !important; overflow-wrap: break-word !important;”>交换机的选择以及网络结构不合理
<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; clear: both; min-height: 1em; box-sizing: border-box !important; overflow-wrap: break-word !important;”><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; color: rgb(62, 62, 62); font-family: Optima-Regular, PingFangTC-light; font-size: 15px; letter-spacing: 0.544px; text-align: left; text-indent: 34px;”>交换机的选择也会直接影响到画面的流畅性，<span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; letter-spacing: 0.544px;”>如果选择的交换机为非线速交换机，就会导致画面卡顿。选择交换机时不能单单只看包转发率、与背板带宽，尤其是核心交换机的选择，目前国内的很多厂家对于包转发率与背板带宽这两个数据标的很虚，不能够反映出交换机的真实性能，所以在选择核心交换机时务必选择大品牌，详细了解交换机的用途与参数。
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<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; clear: both; min-height: 1em; box-sizing: border-box !important; overflow-wrap: break-word !important;”><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; color: rgb(62, 62, 62); font-family: Optima-Regular, PingFangTC-light; font-size: 15px; letter-spacing: 0.544px; text-align: left; text-indent: 34px;”>建议8个点以下可使用百兆交换机，8个点以上需使用带千兆上传口的交换机。超过50个点位就需要三层汇聚网络结构，核心交换机需为大牌子。
<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; clear: both; min-height: 1em; box-sizing: border-box !important; overflow-wrap: break-word !important;”><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; color: rgb(62, 62, 62); font-family: Optima-Regular, PingFangTC-light; font-size: 15px; letter-spacing: 0.544px; text-align: left; text-indent: 34px;”>对于画面卡顿的现象，通常是可以降低码流或帧率的方法解决，但是这样做虽然提高了画面的流畅性，却是以牺牲图像的清晰度为代价，如果用户对画面清晰度要求较高，不建议使用，需要找到根本的原因问题，从而解决。
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<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; clear: both; min-height: 1em; box-sizing: border-box !important; overflow-wrap: break-word !important;”><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; color: rgb(217, 33, 66);”><strong style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;”>补充：
<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; clear: both; min-height: 1em; box-sizing: border-box !important; overflow-wrap: break-word !important;”><strong style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;”><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; color: rgb(62, 62, 62); font-family: Optima-Regular, PingFangTC-light; font-size: 15px; letter-spacing: 0.544px; text-align: left; text-indent: 34px;”>最后弱电行业网补充个问题，也是比较常见的。<span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; color: rgb(62, 62, 62); font-family: Optima-Regular, PingFangTC-light; font-size: 15px; letter-spacing: 0.544px; text-align: left; text-indent: 34px;”>
<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, “><strong style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;”><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; color: rgb(62, 62, 62); font-family: Optima-Regular, PingFangTC-light; font-size: 15px; letter-spacing: 0.544px; text-align: left; text-indent: 34px; background-color: rgb(255, 251, 0);”>监控预览本身很流畅，没有卡顿现象，但回放时卡？
<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, “><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; color: rgb(62, 62, 62); font-family: Optima-Regular, PingFangTC-light; font-size: 15px; letter-spacing: 0.544px; text-align: left; text-indent: 34px;”>这种情况一般是因为使用的硬盘读取速度过低或硬盘录像机本身其他关系到读写性能的硬件配置过低造成的。可以将需要查看的监控通过备份的方式将监控录像备份到U盘，然后到普通电脑上进行查看，另外建议使用监控专用硬盘，购买硬盘时注意查看参数。
