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Is NVR necessary in a Large Scale Security Camera System?

The cameras security system provides us with a live feed, recording and a playback function. Now it’s quite understanding that setting up a camera security surveillance system can be hard for some people that has a few knowledge about surveillance systems, why? There are different kinds of systems that you could choose from, but with the lack of technical knowledge, it crate’s the dilemma in which case makes the decision hard. The camera security system comes in two different categories which are DVR (digital video recorder) and NVR (network video recorder). As mention in the topic, we will be discussing more about the NVR system, and see if it’s a necessary to install it in a large scale camera system, but before getting into that, what is a NVR?

What is NVR?

It’s normally for people to think that the NVR (network video recorder) is another complicated device to use, but don’t be too jumping into conclusion, as I was saying the NVR (network video recorder) is simple a software program that enables you to monitor live stream and record vast amount of video data for evidence in the feature and make smart playback for daily monitoring, it’s basically a consists of a digital mass storage device, just like the digital video recorder (DVR). Now speaking of the DVR, what are the difference between the DVR and the NVR.

What’s the difference between the DVR and NVR?

Both DVR and NVR surveillance systems basically severs the same purpose, but that doesn’t mean that the features are the same, both process their video data at different places, the DVN process it’s data on the recorder while the NVR encodes and process the video data at the camera. Both of them also requires different cameras in order for them to work, analog cameras are a usual for the DVR, whereas NVR uses the IP camera the most, besides that, unlike the DVR system, the NVR comes in both wireless and wired, they can connect to any IP cameras system using the same network, thus they could also use standard Ethernet cable like cat5 or cat6 to transmit data in a POE-NVR switch. As for the DVR, it uses the coaxial BNC cable, in which case has limitation to it, and to make matters more inconvenient, the connections has to make physical contact with each port to make the connection.

After comparing both of the cameras security systems, I think it’s obvious why we won’t be hesitated to employ the NVR system. Why? Here are the three main reasons.

High quality of image

Images plays an important part in the security surveillance system, why am I saying this, well isn’t it obvious, for security purposes. But don’t be too naïve thinking that it’s only for security purpose, it’s also severs different purpose such as preventing bad things from happening or even gathering evidence for an on-going investigation. This comes in handy but what if the image was not clear, this could be a really big problem due to the fact that the cameras resolution was in low quality, thus it affects the images quality. That’s why it would be in the best interest to get a high quality camera, in which case comes with a high quality image. As for the NVR system, it receives digital signal from the IP cameras, with a resolution that can go from 2MP to 12MP or higher. Compare to the DVR, the video qualities are better even in the same resolution.


Everyone have their own definition of flexibility, and that’s normal and understandable, but I’m quite sure that when it comes to surveillance technology, most of us want a flexible function and easy to understand systems. Now as for the NVR, due to the fact that it support IP cameras in wired or wireless connection, so you can flexible employ wired and WiFi camera in your security camera system. Besides, you know that IP camera has need to connect to the NVR physically, that means the distance between the NVR and IP camera can be extremely long, especially when it is under the help of long range PoE solution or fiber optic link, you can place it anywhere that you want as long as the network connection is the same, giving you great flexibility on deployment. Unlike the DVR in which case is limited by the coax cable, that’s makes its max range up to 300ft.

Easy to use

The word easy is music to every ones ear’s, nobody can say that they don’t like the word easy, if they don’t, then they are telling a lie. Using a security surveillance system is common to be hard, because some of the technical function needs to be handle by a technician, and not all who installs the security system has the full knowledge of it, that’s why most of the regular people like easy installment. And you are in luck because the NVR security system is easy to use, so you won’t need any technician to help you with the installment. First of all its wireless so the headache of a lot of cables crossing in and out is unnecessary, it also need no configurations and you just need to connect the NVR and the IP cameras using the same network and you are good to go.

Actually, apart from the common wired NVR, there is the WiFi-NVR and PoE- NVR available on the market, let me give you a little bit of insight about these two systems. The wifi-NVR is connected without running Ethernet cable but that is its transmit via WiFi, thus the WiFi signal is not so stable compared to the wired connection, because WiFi signal is easy to be affected by many factor, such as connection distance, obstacles between devices. As for the POE-NVR, stands for NVR with built in switch, which enables IP camera to connect to it direct to get power and network simultaneously, whereas it is capable to connect to much lesser cameras as the number of port is quite limit and the performance is not that stable enough. All in all, the common wired NVR is a fair choice to employ in large scale IP camera surveillance system.

How to use NVR in the system?

You might think that using the NVR system cause a lot of work or even must have the fundamental background of the systems, but you are wrong, it’s simple and a beginner could learn it in a split of a second. Now all you have to do is connect the NVR for IP camera with switch, if you need remote access to the NVR, you may need to connect to router there are zero configurations needed, but you need to download a network video software, and the IP cameras will automatically show up in the network list, all you have to do is add the cameras to the client with your input password and the system is ready to run.

Reading to this, obviously, we can say that NVR is a necessity in a large scale security camera system as its vast data storage capacity, high stability and great flexibility as well as high quality image. Then you may come into the next step to look for a suitable NVR for a large scale system. Actually, 64 channel NVR are highly recommended as it is more easy to use than those NVR with more channels.

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