The main difference between DVR and NVR is based on their data processing systems. A DVR (Digital Video Recorder) system converts analog footage to digital to process and store it. On the other hand, an NVR (Network Video Recorder) system encodes and processes digital footage. In an NVR system, an IP camera dually functions to capture footage and compress and encode this footage. Coaxial cables connect DVR systems, while NVR systems use Ethernet cables.
In the security systems, DVR and NVR store surveillance footage. However, their working principle and usage are different. So, it is crucial to know their differences in-depth before choosing one for the security system. Let’s learn more about the DVR vs. NVR systems.
What is DVR (Digital Video Recorder)?
A DVR system stores the footage in the video surveillance system. DVR stands for Digital Video Recorder. From its name, we can guess that it converts analog footage to digital. Yes, that’s right. A DVR system captures analog footage from security cameras and converts it to digital signals to store it.
DVR Systems use coaxial cables to connect the cameras to the recorder. The footage is sent to the DVR through these cables and then converted into a digital format. DVR systems have a limit on the distance they can cover. In this system, the camera only plays the role of capturing footage. The central processing unit is DVR, which converts analog video footage into a digital signal and sends them for storage.
Components of a DVR System:
Analog security cameras are used in DVR systems. Since this security system costs less, most people prefer to use it. In this system, the cameras only play the role of capturing footage. The quality of footage captured by analog cameras is not as good as that of IP cameras. This camera can be used with legacy coaxial cable infrastructure.
Analog cameras connect to the DVR via coaxial cable, sending an analog video signal to the DVR for recording. While analog cameras have been around for many years, they are still the most popular type used in DVR security systems. This is because they offer a good combination of price, quality, and compatibility.
Coaxial BNC Cables:
Coaxial cables are used to connect the DVR to analog cameras. These cables send an analog video signal from the cameras to the DVR. BNC (Bayonet Neill-Concelman) is a connector used with coaxial cables. Since these cables are less expensive with excellent video quality, they are still widely used. There is no chance of data loss in these cables. But ensure that the coaxial cable is of good quality.
Finally, the DVR recorder converts the raw videos into a digital format. This recorder stores the digital video footage. The DVR is connected to a monitor, and you can view the live or recorded footage on this monitor. You can also connect the DVR to the internet and view the footage remotely on your computer or phone.
Pros and Cons of DVR Systems:
- Setup Flexibility
- Less expensive than IP cameras
- Easy to set up and use
- Remote viewing with the internet
- Chance of data missing
- Low-quality images
- Old technology
What is NVR System?
NVR System is a surveillance system that uses a Network Video Recorder to Livestream, record, and store video footage. NVR systems are often used in commercial and industrial settings. It offers several advantages over traditional DVR systems. One of the main benefits of NVR systems is that they can be easily integrated with other security systems, such as access control and alarm systems. Additionally, NVR systems offer high-quality video footage and can be easily scaled to accommodate changing needs. NVR systems are also relatively easy to install and maintain, making them a popular choice for many businesses. In this system, An IP camera is used rather than an analog camera. IP cameras can convert raw video footage into digital signals themself. That’s why NVR is better than DVR.
Components of an NVR System:
The quality of footage captured by IP cameras is much better than that of analog cameras. IP cameras can be used with both new and legacy IP infrastructure. These cameras can compress and encrypt video data before recording it to the NVR. This helps to save space and bandwidth.
The NVR recorder receives and records the video footage from the IP cameras. It can also be used to view live or recorded footage. The NVR is connected to a monitor, and you can view the live or recorded footage on this monitor. You can also connect the NVR to the internet and view the footage remotely on your computer or phone.
An Ethernet network connects the NVR recorder with the IP cameras. This network can be wired or wireless. The video footage is sent from the IP cameras to the NVR recorder over this network.
Pros and Cons of NVR Systems:
- Advance technology
- High video quality
- Easy to install & setup
- Flexible Placement
- Extensive coverage areas with multiple cameras
- Higher storage capacity
- Signal loss when the network is down
What is better, DVR or NVR?
Though it depends on multiple factors, NVR is better than DVR. This is because NVR uses IP cameras to ensure higher quality footage while DVR uses analog cameras. The video quality captured by IP cameras is much better than analog cameras. Additionally, NVR systems offer high-quality video footage and can be easily scaled to accommodate changing needs. NVR systems are also relatively easy to install and maintain, making them a popular choice for many businesses.
If you are looking for a surveillance system for your home or business, you should consider an NVR system. NVR systems offer many advantages over traditional DVR systems, such as high-quality video footage, easy integration with other security systems, and easy installation. When using Castr for your live surveillance monitoring, you can talk with our technical team for more information on which method is best for you!