With the advent of high-definition security market, there are more and more high-definition products on the market, users are more and more choices, more choices, although it is a good thing, users can shop around.
However, with the increase in the number of products, these products will inevitably have some quality, but the performance can not meet the user's expectations of the product, coupled with a lot of users for HD products is not particularly understanding, easy to choose when Errors, or be fooled by businesses, lead to high-definition products purchased by users that do not achieve the expected results.
As an important member of high-definition products, high-definition cameras often do not know from what aspects to determine its performance when the user chooses, I believe that the determination of high-definition camera performance is mainly considered from the following aspects:
First of all, when users select high-definition cameras, they must understand their own needs. High-definition cameras are mainly used in the monitoring of financial systems and road traffic, because these places have special requirements for images. If users use a place that does not need to be able to see the human face Features, license plate numbers, etc., there is no need to select a high-definition camera, select an ordinary camera is completely fine, after all, high-definition camera in the price than the ordinary high, so that when the choice of the first to clear their needs.
The second is the function of the camera, which is mainly reflected in the clarity of the picture. When watching the picture, the main observation is static resolution, dynamic resolution, color reproduction degree, and there is the scenery, scenery, flowers, and moving objects. When you see the picture is clean, the color is natural and realistic.
The sharpness of the picture is not only to see the horizontal resolution, but also depends on its wide dynamics, automatic white balance, image sharpness adjustment, super digital noise reduction, intelligent digital automatic photometric compensation and other functions. When detecting the wide dynamic function, it is necessary to observe whether the transition between the bright area and the dark area is clear and natural, and whether the wide dynamic range can be automatically adjusted.
Good cameras have rich levels and delicate performance in bright and dark areas. When looking at license plates under nighttime headlights, the outline of the headlights, filaments, and license plates are all very clear, and no bright lines appear. The low illumination needs to observe whether the camera's monitoring picture is clear at night or not, and how the noise size affects the function of the camera.
The third is some other aspects of the camera, such as the camera's operating settings, the current set of high-definition cameras is mainly through the menu and dialing two ways to adjust, with the menu of the camera should pay attention to whether the menu function is rich, whether Easy to adjust, can meet different complex monitoring environments.
In addition, some cameras have different modes. When users use them, they only need to choose according to different environments. It also depends on whether the camera's data interface is rich, because in the course of use, there will be the phenomenon that the surveillance camera cannot work normally due to environmental or man-made destruction.
In the installation and debugging also pay attention to lens matching, because the quality of the lens is not good, or the matching is not good, to a large extent will affect the clarity of the picture. It is also necessary to pay attention to the accessory products of the camera. In order to achieve high-definition effects, the transmission system, the intermediate system and the terminal display system must meet the requirements for bandwidth and compression, in addition to the high-definition camera at the front end. The last step is to look at the technical support of the camera manufacturers, including whether they can provide specialized technical training, explain in detail the special features and operating menus of products, and whether maintenance can be carried out in the shortest possible time after a problem occurs.
Although the above points illustrate the matters that should be taken care of when selecting a high-definition camera, users should also be cautious about choosing when shopping, and shop around.
However, with the increase in the number of products, these products will inevitably have some quality, but the performance can not meet the user's expectations of the product, coupled with a lot of users for HD products is not particularly understanding, easy to choose when Errors, or be fooled by businesses, lead to high-definition products purchased by users that do not achieve the expected results.
As an important member of high-definition products, high-definition cameras often do not know from what aspects to determine its performance when the user chooses, I believe that the determination of high-definition camera performance is mainly considered from the following aspects:
First of all, when users select high-definition cameras, they must understand their own needs. High-definition cameras are mainly used in the monitoring of financial systems and road traffic, because these places have special requirements for images. If users use a place that does not need to be able to see the human face Features, license plate numbers, etc., there is no need to select a high-definition camera, select an ordinary camera is completely fine, after all, high-definition camera in the price than the ordinary high, so that when the choice of the first to clear their needs.
The second is the function of the camera, which is mainly reflected in the clarity of the picture. When watching the picture, the main observation is static resolution, dynamic resolution, color reproduction degree, and there is the scenery, scenery, flowers, and moving objects. When you see the picture is clean, the color is natural and realistic.
The sharpness of the picture is not only to see the horizontal resolution, but also depends on its wide dynamics, automatic white balance, image sharpness adjustment, super digital noise reduction, intelligent digital automatic photometric compensation and other functions. When detecting the wide dynamic function, it is necessary to observe whether the transition between the bright area and the dark area is clear and natural, and whether the wide dynamic range can be automatically adjusted.
Good cameras have rich levels and delicate performance in bright and dark areas. When looking at license plates under nighttime headlights, the outline of the headlights, filaments, and license plates are all very clear, and no bright lines appear. The low illumination needs to observe whether the camera's monitoring picture is clear at night or not, and how the noise size affects the function of the camera.
The third is some other aspects of the camera, such as the camera's operating settings, the current set of high-definition cameras is mainly through the menu and dialing two ways to adjust, with the menu of the camera should pay attention to whether the menu function is rich, whether Easy to adjust, can meet different complex monitoring environments.
In addition, some cameras have different modes. When users use them, they only need to choose according to different environments. It also depends on whether the camera's data interface is rich, because in the course of use, there will be the phenomenon that the surveillance camera cannot work normally due to environmental or man-made destruction.
In the installation and debugging also pay attention to lens matching, because the quality of the lens is not good, or the matching is not good, to a large extent will affect the clarity of the picture. It is also necessary to pay attention to the accessory products of the camera. In order to achieve high-definition effects, the transmission system, the intermediate system and the terminal display system must meet the requirements for bandwidth and compression, in addition to the high-definition camera at the front end. The last step is to look at the technical support of the camera manufacturers, including whether they can provide specialized technical training, explain in detail the special features and operating menus of products, and whether maintenance can be carried out in the shortest possible time after a problem occurs.
Although the above points illustrate the matters that should be taken care of when selecting a high-definition camera, users should also be cautious about choosing when shopping, and shop around.
Plastics Pigment, Plastic Antioxidant, Plastics Organic Pigment, Plastics Solvent Dyes, Calcium Acetylacetonate (CAS No.19372-44-2)
Dynasty Chemicals (NingBo) Co., Ltd. , https://www.dychemco.com