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浙大中控电源分享如何选择合适的监控电源?

2020-09-27 17:34:58 来源:http://www.sdjkyqyb.com/ 53

  如何选择合适的监控电源?
  How to choose the right monitoring power supply?
  1、监控摄像机标明DC12V/AC24V通用,该选择什么样的电源?
  1. The monitoring camera indicates that DC12V / AC24V is universal. What kind of power supply should be selected?
  选择AC24V监控电源,因为同样的传输距离,电压越高,损耗越小。电压高了,负载就能得到比较充足的电压。同时,由于采用交流24V,在调试监控摄像机的时候,可以选择电源同步,使整个监控系统中不同的设备的图像场频能够保持同步。
  Select AC24 V monitoring power supply, because the same transmission distance, the higher the voltage, the smaller the loss. When the voltage is high, the load can get enough voltage. At the same time, due to the use of AC 24 V, when debugging the monitoring camera, you can choose the power synchronization, so that the image field frequency of different equipment in the whole monitoring system can be synchronized.
  2、如何合理配置整个监控系统的监控摄像机浙大中控电源功率?
  2. How to reasonably configure the power supply of the central control system of Zhejiang University?
  这个问题经常让年轻没有经验的工程师为难,很多方案在实施的时候都发现当初设计的电源容量不够,需要追加设备,造成和甲方扯皮现象。实际上,由于监控摄像机在启动瞬间,启动电流很大,再加上工程上远距离传输的损耗,所以,监控摄像机需要的电源,不是简单地把所有监控摄像机的额定功率相加。正确的做法是把整个监控系统的监控摄像机的额定功率相加再乘以1.3倍,这个是监控摄像机实际需要的功率,然后再加上约30的损耗;然后再加上30的余量,作为将来扩容使用。
  This problem often embarrasses young and inexperienced engineers. During the implementation of many schemes, it is found that the power capacity originally designed is not enough, and additional equipment is needed, resulting in disputes with Party A. In fact, since the starting current of the surveillance camera is very large at the moment of starting, and the loss of long-distance transmission in engineering, the power supply required by the monitoring camera is not simply adding up the rated power of all surveillance cameras. The correct way is to add up the rated power of the monitoring camera of the whole monitoring system and multiply it by 1.3 times, which is the actual power required by the monitoring camera, and then add about 30 loss; then add 30 surplus for future expansion.
          浙大中控电源
  3、监控摄像机浙大中控电源的配置,比较忌讳的是什么?
  3. What is taboo about the configuration of central control power supply for surveillance camera in Zhejiang University?
  忌讳的是:整个监控系统共用一个电源。原因如下:
  Taboo is: the whole monitoring system shares a power supply. The reasons are as follows:
  1)系统维修的时候,经常需要打开、关闭电源。所有的监控摄像机在打开电源瞬间同时启动,启动电流特别大,对电源的冲击力很大,严重的会烧毁电源,2)所有的监控摄像机共用一台电源,当电源发生故障时,整个闭路监控系统陷入瘫痪。尤其是一些重要出入口的图像无法监视,可能会造成不必要的麻烦。
  1) When maintaining the system, it is often necessary to turn on and turn off the power supply. All the surveillance cameras start at the same time when the power is turned on, and the starting current is especially large, which will have a great impact on the power supply, which will burn down the power supply seriously. 2) all the surveillance cameras share one power supply. When the power supply fails, the whole closed-circuit monitoring system will be paralyzed. In particular, the images of some important entrances and exits cannot be monitored, which may cause unnecessary trouble.
  那么正确的做法应该是怎样呢?如上面例子,一个商务楼有100台固定监控摄像机,总共需要约800W的电源,正确的配置应该是选择4台、每台200W的电源。这样,当某一台电源发生故障,可以把重要出入口的监控摄像机接到其它好的电源上,不至于影响整个系统的工作。
  So what is the right way to do it? For example, a business building has 100 fixed surveillance cameras, which requires a total power supply of about 800W. The correct configuration should be to select 4 sets of 200 W power supply for each. In this way, when a certain power supply fails, the monitoring camera at the important entrance and exit can be connected to other good power supply, which will not affect the work of the whole system.
  4、监控摄像机电源的选择还需要注意什么问题?
  4. What problems should be paid attention to when choosing the power supply of the surveillance camera?
  一:在给监控摄像机接电源时,不要把距离较远的监控摄像机和距离较近的监控摄像机接在同一台电源上。如果接在同一台电源上,电源电压高了,会烧毁近距离的监控摄像机,电源电源低了,距离较远的监控摄像机无图像。应该尽量把距离比较远的监控摄像机接在同一台电源上,把较近的监控摄像机也接在同一台电源上。
  1: When connecting power to the surveillance camera, do not connect the remote surveillance camera and the closer surveillance camera to the same power supply. If it is connected to the same power supply, if the power supply voltage is high, the close-up monitoring camera will be burned. If the power supply is low, the remote monitoring camera will have no image. We should try our best to connect the remote surveillance camera to the same power supply, and connect the closer surveillance camera to the same power supply.
  二:如果监控距离太远,需要配置更高电压的电源,如30V,36V等等,甚至直接供220V交流电,到前端再变压。
  2: If the monitoring distance is too far, it is necessary to configure a higher voltage power supply, such as 30V, 36V, etc., and even directly supply 220 V AC, and then change the voltage to the front end.
  以上是关于监控摄像机12V还是24V,该如何选择合适的监控电源的内容介绍,希望对大家有所帮助,如您想要了解更多内容欢迎点击我们的浙大中控电源www.sdjkyqyb.com网站。
  The above is about the monitoring camera 12V or 24V, how to choose the appropriate monitoring power supply, hope to help you, if you want to know more, welcome to click our Zhejiang University central control power supply www.sdjkyqyb.com Website.
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