The difference between network cameras and analog surveillance cameras
Leave a message
An analog surveillance camera (Camera) is a front-end surveillance device that acquires surveillance images. It takes a CCD image sensor as its core component, plus a synchronization signal generation circuit, a video signal processing circuit, and a power supply. In recent years, new low-cost CMOS image sensors
An analog surveillance camera (Camera) is a front-end surveillance device that acquires surveillance images. It takes a CCD image sensor as its core component, plus a synchronization signal generation circuit, a video signal processing circuit, and a power supply. In recent years, new low-cost CMOS image sensors have developed rapidly, and cameras based on CMOS image sensors have begun to be used in videophone or conference TV systems that do not require high image quality. Because the resolution and low illumination of the CMOS image sensor are not as good as the CCD image sensor, for the time being, the cameras used in the TV monitoring system are still CCD cameras. The signal output by the analog camera (Camera) is a video signal, which can only transmit a one-way video signal, and needs to be connected to a monitor or a hard disk video recorder for monitoring and recording.
IP Camera integrates video compression and network transmission processing module (DVS) on the basis of the analog camera (Camera) and has the technical characteristics of an analog camera and video server. The network camera can operate independently as long as it is placed in any location with an IP network interface. In addition to the image capture functions of general traditional cameras, the network camera also has a built-in digital compression controller and a WEB-based operating system (including a Web server, FTP server, etc.) Local area network, Internet or wireless network) to end users, and remote users can use standard web browsers or client software to access the IP cameras on their PCs, monitor the situation of the target site in real-time, and monitor the image data in real-time. With real-time storage, addition, you can also control the camera's PTZ and lens through the network for comprehensive monitoring. Some IP cameras also have other functions, such as voice intercom, alarm input, relay output, motion detection, analog video output, and SD card local storage of recorded data and other functions.
