What is a CCTV?
Basically say by a CCTV that is in a fixed place and sends information such as images and videos through a completely secure CCTV to the device or devices that are connected to the camera. Pictures do not need to be connected to the image recording device with only one wire. Nowadays, no information can be received from the cameras. Also, CCTVs do not necessarily connect to one device. Rather, you can send to several devices and even where you want to see.
What are the CCTV components?
▪️ CCTV Camera: Receive images from the desired location and send it to the server.
server: in the CCTV of the Server device (DVR or DVR NVR) Receives and records images sent from cameras. It also enables them to manage.
▪️ Memory or Hard Disk: enables recording of images in the server.
▪️ Cable: Camera Connection to Camera Server.
▪️ Power Supply: To supply cameras, it needs a power supply to change the city's power voltage to 12V.
▪️ Power Cable: Camera and power supplier.
Foundation: connecting cables to CCTV equipment via special sockets.
CCTV
CCTVs are manufactured and designed in different types for different uses. You can find the camera for any and even your budget for any supervisory purpose. So I suggest that you do the market for a valid disbelief before purchasing and then buy. CCTVs are divided into different categories based on shape, application, technology, lens and resolution. The form of a variety of CCTVs is one of the camera categories that most customers use.
CCTV with different body and appearance
▪️ Bolt Camera: Cameras that are suitable for the outside.
Speeddam Farm: Cameras with a turn left and right with special use
▪️ Box Camera: Suitable for industrial environments with separate lens
▪️ Fish Eye Observatory: Camera for places with high ceilings and for 360 degrees of environment
▪️ Kub camera: Double Voice Recording and Voice Communication
B> ▪️ Needle Camera: Very fine cameras hiding behind objects
▪️ Lamp Camera: Wireless Cameras with Lamp Laundry, Suitable for Hidden Installation
CCTV with a variety of lenses
The lens in the CCTV is one of the main components and plays an important role in the use of the camera. The lens in the camera is constantly embedded. If you choose a CCTV with a fixed lens, the viewing angle gives you is fixed and unchanged. This angle of vision depends on the focal length of the lens in different cameras. For example, the camera with a 2.8mm lens offers about 100 degrees, or the camera with a 4mm angle lens between 50 and 60 degrees. These angles are fixed and unchanged, and you should install the camera in the right direction to better cover the camera. The camera's viewing angle is horizontally and vertically inserted in the camera's data sheet.
If you need to change the viewing angle and zoom in the image, use a variable lens camera. Changing the angle of view in the camera with a variable lens can also be done in two ways. The first type should be done manually and mechanically and occurred by the button on the camera. In the second type, you can also remotely adjust the settings in addition to changing manually. These lenses are called the engine lens. Their price is slightly higher than cameras with two other types of lenses.
CCTV with different resolution
CCTV cameras are tailored to different uses and prices. Circuit and resolution also play a decisive role in CCTV cameras. In the past, good and high quality resolution was expected only from network CCTVs. While we are currently seeing high quality and great quality on HD analog cameras. The reasonable price of these cameras has made many customers reach these types of cameras.