Choosing a video recorder depends on the main functions of the security system
Basic characteristics of video recorders
The design of video recorders directly depends on the equipment connected to them. When purchasing on the website https://control.ua you can not only save money but also get competent advice. In the catalog, all models /ohrannye-videoregistratory/ are sorted by parameters. By the type of interaction with cameras, devices are divided into three types:
Network – record and store digitized data from IP cameras.
Digital – digitize the signal from analog video cameras and record information to a hard drive.
Hybrid or tri-hybrid – can work with different types of cameras and video data formats. The designation "hybrid" or HDVR is not always indicated on the packaging, but the instructions list the supported formats. The information needs to be analyzed independently to avoid buying devices that are not compatible with each other.
The next parameter is the number of channels of the device. This characteristic means the number of analog cameras that can be simultaneously connected to the video surveillance system. If IP cameras are also connected, their number is indicated separately in the instructions.
Another important function is the presence of two streams. This does not mean that the video recording will be present on the hard drive in two copies. In fact, a higher quality version of the video is written to the disk or cloud, while a simplified version can be streamed to a mobile device in real time.
The resolution of the recorder must match the resolution of the camera. If it is low, it is useless to buy the most advanced video camera. Recorders can also be indoor – for use in apartments, offices, and outdoor – for installation on premises, roads, highways. Such models differ in the type of housing.
Selection principles
When purchasing, you need to clearly understand what is necessary and what is not. An important parameter is the number of recording frames per second. The characteristic should be high if critical actions are possible within a few seconds. For guarding a country house, three frames per second are quite enough, but when monitoring a store cash register, at least sixteen are required.
You need to consider the presence of a function for transmitting sound from the camera if you need to hear customers' conversations or monitor a meeting. Equally important is the device's support for network protocols, through which you can view the material via the Internet or a local network.
The next important point is the presence of multitasking. A video recorder can perform only one or several tasks simultaneously. Multitasking is necessary if video recording must continue while information is being retrieved. This is often required at large facilities, but for home, a simplex model that can perform only one task at a time is suitable.
By spending a little time and understanding the characteristics of the system components, you can buy a video recorder that will meet all the necessary requirements. At the same time, the equipment will not be too expensive. However, you need to consider the technical parameters so that all components of the system are compatible with each other in terms of characteristics.