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Today, CCTV cameras are one of those technologies that there is no doubt in buying. Maybe until a few years ago, only big stores and factories used to buy CCTV cameras, but changes in society have pushed people's mentality to another direction and we see that even for a small property, CCTV cameras are provided. Because you are also thinking of buying a CCTV camera, you must have various questions and issues in your mind, and most likely one of the few questions raised in your mind is that the CCTV camera will keep video for a few days.
What are the factors depending on the duration of the CCTV?
Megapixels or the resolution of the cameras
The first factor among the multiple factors affecting how many days the CCTV keeps video is the megapixels or the resolution of the cameras. The megapixel or resolution of the cameras affects the storage capacity of the system and will show itself by taking up the volume and memory. In a closed-circuit system, there may be cameras with different image quality, whose images will occupy a different volume in proportion to their megapixels. For example, the Hilock camera has different image quality, including HD, FULL HD, 4K, etc., each of which occupies a different space on the hard drive. In general, the higher the megapixels of the cameras and the higher the image quality, the more space their images will occupy. As a result, the volume of your hard disk will be occupied sooner and it will have a direct effect on the category of the CCTV camera, which will keep video for several days.The number of frames in the recording
As you know, every second of the live image consists of 25 frames. For example, in the Hikvision DVR recording mode setting, the number of frames is set to 15 frames per second. Because the more the number of frames, the more space they will occupy, and as a result, you cannot expect to keep the film in the camera.
The number of CCTV cameras
The number of cameras in the system affects the recording time of the CCTV camera. Naturally, the more cameras you have, the more recorded images you will have to store in the available storage space.
Effect of Project Size on Retention Duration
Vendors specializing in larger projects clearly retain video for longer periods of time than those specializing in small projects. While this is not stated in the description, we suspect that larger projects typically have higher security requirements, leading to the need for longer storage. If this happens in your business, be sure to consult with Atlas Electronics before purchasing.The size and number of hard drives in the CCTV camera
The most important factor in the ability of the system to record CCTV images is the capacity of the hard drives and their number. Some DVR and NVR recorders do not have internal memory and you need to get a hard disk to store the images for them, but some others have a certain amount of internal memory, but they still need a hard disk to be able to store the recorded images for several months. The memory card you use in your CCTV camera must have certain features and characteristics. so that you can make maximum use of its capacity. Micro SD cards are memory cards that are used in CCTV cameras. In choosing these cards, you should pay attention to the three factors of capacity (16, 32, 64, 128, 256) and the speed of the desired card as well as its durability. Of course, when buying a camera, you should pay attention to the specifications of the camera. Because some cameras can use the capacity of the memory card to a limited extent, and this creates a limit for you. Of course, the higher the resolution of the captured images, the more space you will need for storage.
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1. The first way is the settings that we use for the camera resolution section. If we set the resolution based on the location where the camera is filming, that is, we use a lower resolution for less important locations, the amount of recordable volume will increase. 2. The second solution to increase the capacity is to disable the sound recording feature for the camera of this section in places such as the parking lot where there is no need for a lot of sound and at the same time there are a lot of additional sounds.
3. Having the ability to detect movement in the desired camera, makes it start recording only when there is movement. And otherwise, the camera will not record anything. This also helps to increase the recording time and capacity of the cameras.
4. Backing up the camera data and transferring it to the computer permanently will cause the camera space to be constantly empty.