What is an Analog Monitor?

The analog camera outputs an analog video signal, which can be converted into a digital signal by an encoder. The video signal captured by the analog camera must be converted to digital mode by a specific video capture card. To be divided into several forms: one, gun type, two, hemisphere type, three, global type, four, infrared type.

Analog surveillance camera

The analog camera outputs an analog video signal, which can be converted into a digital signal by an encoder. The video signal captured by the analog camera must be converted to digital mode by a specific video capture card. To be divided into several forms: one, gun type, two, hemisphere type, three, global type, four, infrared type.

Chinese name

Analog surveillance camera

Classification

Gun, hemisphere, global, infrared

output signal

Analog signal

receive signal

Digital mode

Converter

Encoder

View device

computer

The entire video surveillance system is divided into front-end video capture equipment, mid-range transmission processing equipment, and back-end display viewing equipment. The analog camera we are talking about belongs to the front-end video acquisition equipment. The analog camera outputs analog video signals. The encoder can convert the analog video signals generated by the video acquisition equipment into digital signals and then store them in the computer. Captured by analog camera

Analog surveillance cameras are mainly divided into several types: one, gun type, two, hemisphere type, three, global type, four, infrared type.

Analog surveillance camera gun camera

The so-called gun camera is only distinguished by its appearance. This is the initial form of the camera. In fact, it is the camera board + housing. It does not contain a lens and can be used with various types of lenses. The installation method can be hoisting or wall-mounting. Outdoor installation generally requires a protective cover. This camera is mainly used in special fields and high-end fields, and the low-end field is basically replaced by the all-in-one and hemisphere. The gun type is mainly suitable for areas with insufficient light and areas where lighting equipment cannot be installed at night. When only monitoring the position or movement of the scene, a gun camera can be selected. The scope of application of the gun camera is more extensive. Depending on the lens used, remote monitoring or wide-angle monitoring can be achieved. The application is wider than the hemisphere. The zoom range of the gun camera depends on the selected lens, which can range from several times Dozens of times, and the lens replacement is relatively easy. In addition, if there is a need for a gun, you need to configure a protective cover.

Dome camera

The dome camera is also named for the shape. In principle, it is the same as a gun camera, but only in a different form. In fact, it is a camera board + lens + housing. It is generally used indoors, ceiling-mounted installation. Due to the shape limitation, the general lens focal length does not exceed 20mm, and the monitoring distance is short; Dome cameras are widely used in banks, hotels, office buildings, shopping malls, subways, elevator cars and other places that need to be monitored, beautiful and hidden, due to their beautiful appearance and better hidden performance. On the whole, gun-type cameras are more scalable; hemispherical cameras are more beautiful and concealed. Since civilian surveillance does not require special lenses, it is more practical to choose a hemisphere.

Analog surveillance camera dome camera

The dome camera is a high-end device for monitoring products. It can be divided into high-speed dome, medium-speed dome and low-speed dome according to the speed of the pan / tilt. It can be divided into indoor smart dome and outdoor smart dome by using the environment. Or embedded. This is a highly integrated product that integrates the PTZ system, communication system, and camera system. It is a masterpiece of surveillance camera performance. It is a combination of clarity and intelligence. It is the most complex and comprehensive performance of the surveillance system. The best camera front-end, which is complex to manufacture and expensive, can adapt to high-density and most complex surveillance occasions.

Infrared camera with analog surveillance camera

Infrared all-in-one is actually a convenient and cost-effective solution. Dome cameras or guns are mounted with infrared lights + camera board + lens + camera cover and sold together. , Will reduce the image quality. This is a product unique to China, because the domestic emphasis on price and convenience exceeds product quality, and developed countries in Europe and the United States generally do not produce such cameras. This kind of camera has a wide range of applications, covering mid-to-low-end prices, short-to-medium-range monitoring, indoor and outdoor installation, and can be used day and night. It is more convenient to use, but it is generally not used in areas with high image quality requirements.