Network monitoring and installation of the 4 ways!

在监控系统工程安装实践中，我们需要根据环境的不同，客户的要求不同来制定监控设计方案，只有完备合适的监控方案才能保证监控系统的稳定性，经济性，效率性。今天就来说说几种网络监控系统安装的几种传输方式。

In the engineering installation of the monitoring system, we need to make the monitoring design scheme according to the different environment and the different requirements of the customers. Only a complete and appropriate monitoring scheme can ensure the stability, economy and efficiency of the monitoring system. Today let's talk about several transmission modes of network monitoring system installation.

第一种：传统方式，由网络摄像机+电源+网线组成

The first: the traditional way, by the network camera + power + cable composition

在综合布线的时候，同时要布电源线和网线，电源也可以就近取220V交流电，这样节省电源线材，这里暂不讨论它的利弊。给每个网络摄像机提供电源。再有一路网线传输网络数据到网络硬盘录像机NVR。

In the integrated wiring, at the same time, the power line and network wire should be distributed, and the power supply can also take 220V alternating current. In this way, the power supply wire can be saved, and the advantages and disadvantages of it are not discussed here. Supply a power supply for each network camera. Then there is a network line to transmit network data to the network hard disk recorder NVR.

如下图（图片收集于网络）

The following diagram (the picture is collected on the network)

第二种：POE供电方式，有网络摄像机+POE交换机

Second: POE power supply, network camera + POE switch

这样就比前面一种方式节省一条电源线，一台网络摄像机只要一根网线作为传输信号的介质就可以，不再用到电源线了。网线用非屏蔽超五类双绞线就可以了，传输距离100米没有任何问题。

This will save a power line than the previous one, and a network camera can be used as a medium for transmission signals, no longer used in power lines. The net wire uses the unshielded super five kinds of twisted pair cable to be possible, the transmission distance 100 meters does not have any question.

连接方式如下图：

The way of connection is as follows:

为什么现在主流用PoE交换机做网络监控系统，有下面几个优点：

Why is the mainstream using PoE switches to do network monitoring system?

1，节省线材，节省布线时间，节省布线人工，提供工程施工效率。

1, save wire material, save wiring time, save wiring and manpower, and provide engineering construction efficiency.

2，不用电源，就不涉及到强电，不会有触电危险，减少故障概率，降低维护成本。

2, without power supply, it will not involve strong electricity, no danger of electric shock, reduce the probability of failure, and reduce maintenance costs.

3，降低施工难度，简单方便，容易上手，工程布线也更美观。

3, reduce the difficulty of construction, simple and convenient, easy to get started, engineering wiring is also more beautiful.

第三种：远距离的情况下，网络摄像机+光纤+收发器，可以传输距离更远！

Third: long distance, network camera + optical fiber + transceiver, you can transmit farther!

刚才前面我们说了，网线传输正常100米以内，那么超过100米的情况，我们一般考虑用光纤传输了，光纤不但传输距离远（可以传输20公里）而且效果稳定。

As we said earlier, the wire transmission is within 100 meters of normal, then more than 100 meters, we generally consider fiber pikaiz.89ix.comshuigongz.89ix.com jiarebang.89ix.com jiareguan.89ix.com gaibanp.89ix.comlashenyou.89ix.comtransmission, fiber not only transmission distance (can transmit 20 kilometers) and the effect is stable.

我们都知道，光纤传输数据的时候，把数据信号转换成光信号传输，再把光信号转换成数据信号，这样我们使用光纤收发器配合来完成工作。如图：

As we all know, when fiber transmission is transmitted, the data signal is converted into optical signal transmission, and then the light signal is converted into data signal, so we use the optical fiber transceiver to complete the work. Figure:

光纤价格便宜，传输距离远，在监控工程中大量使用。但是光纤需要熔接，熔接设备价格昂贵，所以一般熔接需要找专人进行，这需一定的费用，还需要一定的时间。光纤收发器分为百兆和千兆的，根据所带摄像机的数量可选。

Optical fiber is cheap, and the transmission distance is far away. It is widely used in monitoring engineering. However, the optical fiber needs to be splicing and the welding equipment is expensive. Therefore, the general welding needs to find someone to do it. This will take a certain fee and it will take some time. Optical transceivers are divided into 100 megabytes and gigabytes, depending on the number of cameras.

第四种：无线传输方式，摄像机+无线网桥。

The fourth is wireless transmission, camera + wireless bridge.

在具体监控系统实施环境中，如果布线困难碰到天然屏障或者不可逾越的障碍的时候，我们可以使用无线传输方式，这样就用到无线网桥了。

In the implementation environment of the specific monitoring system, if the wiring difficulties encounter natural barriers or insurmountable obstacles, we can use the wireless transmission mode, so that the wireless bridge is used.