安防监控工程中的三大供电方式如何选择？

How to choose the three power supply modes in the security monitoring project?

视频监控工程中，需要考虑摄像机的供电方式，用什么供电方式能达到最佳监控效果？如何最大程度的节约工程成本?首先就需要了解一下视频监控工程中摄像机供电的几种方式。

In the video surveillance project, the power supply mode of the camera should be considered. What power supply mode can be used to achieve the best monitoring effect? How to save the cost of the project to the greatest extent? First, we need to know several ways of the camera power supply in the video surveillance project.

一、集中供电

1. Centralized power supply

集中供电指的是将源设备集中安装在电力室和电池室，电能经统一变换分配后向各通信设备供电的方式。

Centralized power supply means the centralized installation of the source equipment in the power room and battery room, and the power supply to all communication devices after unified transformation and distribution.

集中电源供电：在220V电源处接12V假山制作 不锈钢铸件 铝箔真空袋 七孔梅花管 hdpe硅芯管 液压钢坝 PVC软管 飞行激光打标机 沥青保温泵集中电源一个，再用2*1.0红黑电源线分别接给摄像头，12V供电距离不可超过100米。在接个单个电源线接头，再把单个电源线接头和监控摄像头电源接头相连接即可。集中供电方式是指在监控室或某个中间点采用12V开关电源向前端负载集中供电。

Centralized power supply: at the 220V power point, a 12V centralized power supply is supplied, then the 2*1.0 red black power line is connected to the camera, and the 12V power supply distance can not exceed 100 meters. Connect a single power cord connector and connect the single power cord connector to the power adapter of the monitoring camera. Centralized power supply means that the 12V switch power supply is concentrated on the front end of the monitoring room or an intermediate point.