How does the hard disk video recorder monitoring system work?

Digital video recorder A digital video recorder records video and digital data and stores them. It can be a hardware or software computer. Records can come from various sources, such as DVD, analog TV, cable TV cable, video camera or other sources. In some aspects, digital video recorders can be regarded as performance video recorders with the same functions. However, the recorded video is stored in digital format, such as AVI or MPEG, much like DVD data. Recorded content can be indexed, searched and manipulated, but video cannot. Digital video recorder has become a security monitoring system. DVR and monitoring system In the DVR security system, closed-circuit television cameras are connected to DVR equipment or hard disk video recorder function computers. Since the TV camera records video (and possibly audio), it is transmitted to the DVR device through the cable system. The transmitted video can be routed to a monitor or another device through a network, or converted and stored in a digital format. All archived or stored video information is "tagged", that is, it is tagged to indicate when it was recorded and provided by the camera. This makes it easier for people to obtain real and archived security data. Advantages compared with traditional methods Although the main function of DVR security equipment is to manage and store the input from surveillance cameras, it has many additional security applications. The camera can be remotely controlled by DVR equipment, so that the user can zoom, pan or rotate to monitor the field of view of the camera. If an alarm event is triggered, it can be integrated into the video data because it is stored, so that the fact that the event is searched can be easily accessed. Finally, some systems have the ability to detect the motion of monitoring video data. Motion detection and event marking eliminate the monitoring ability of this system, and participate in monitoring from the personnel management, so that it can work more effectively. The complexity of DVR security system has made great progress. In recent years, there is no doubt that the future system will have more impressive sports functions.