DVR - Digital video recorder features.
The DVR is a device that can be compared to a compact computer. The software installed on it makes it possible to save recordings from cameras, view them and connect to the home surveillance system
remotely. The connection scheme is as follows: the registrar is connected to the router, and through WiFi you can watch video using a smartphone, iphone, tablet or other gadget with the application for remote access installed. Thus, homeowners have the opportunity to watch what is happening at home via the Internet, while on vacation, from almost anywhere in the world where there is access to the network.
Many are interested in the questions: what size should the hard drive be and how long does it take to store recordings from cameras? The amount of disk space depends on its cost. It is advisable to select such a volume that the information is stored for at least 2-3 weeks. This time is enough to review the video, deal with troubles and delete data.
In addition, there is a way to significantly increase the storage time of videos, if you configure the camera to respond to movement. Equipping cameras with motion sensors and special software on a computer (recorder) make it possible to start devices at certain times. If nothing happens in the house or on the territory, then the shooting is not conducted. As a result, the homeowner receives a "cut" from the events, which, moreover, is much more convenient to view.
Internet quality is improving every year. Modern channels for data transfer make it possible to record a video signal directly to the Internet and save recordings on an external server - "in the cloud". That is, you can do without a home video recorder. But it should be remembered that data storage on the Internet will have to pay. In addition, if there is a problem with the Internet, recordings will not be saved. If there was a short-term shutdown of the Internet, the camera will be able to save data to a flash drive, and after the network is working, transfer it to the server. If the Internet has disappeared for a long time, there is a possibility that important data will simply be lost.