All-in-one camera must be used carefully

Today, with the rapid development of the security market, integrated cameras have steadily advanced with their unique advantages. Its advantages are compact size, beautiful appearance, easy installation and use, wide monitoring range, and high cost performance. It is widely used in government projects, high-grade high-rise buildings, and shopping malls, schools, hotels, hotel lobbies, etc. It can be seen that the integrated camera The scope of application is very extensive. Then, what should be noted when purchasing products for purchasers in these industries?
Image Resolution
Since it is a camera device, the picture quality is the first point worth noting. Regarding the picture quality, that is, the resolution of the picture, is the higher the better? Personally think that buying on demand is the best policy. When purchasing, users should pay attention to the market's mainstream standards. For example, the image resolution of the mainstream models on the market has basically reached 480 lines. Too high or too low will result in product maintenance or when used with other devices. Inconvenience; on the other hand, also pay attention to their own monitoring equipment performance, if the resolution of the monitor is very low, then the unilateral pursuit of high image resolution is equal to a useless work, and it is not conducive to cost control.
Optical zoom factor
In addition to the quality of the picture, the zoom factor is also a concern for the engineering company. What should be noticed when facing the optical zoom factor? First of all we all know that there are generally optical zoom and digital zoom on the zoom, but in the actual image monitoring system, the real role is the optical zoom factor, digital zoom will affect the picture quality, not practical, but some manufacturers on the market This concept is often used to mislead the user about how many times the camera zooms in on the presentation rather than how many times the optical zoom is multiplied by the number of times the digital zoom.
In general, the longer the focal length of the optical Lens is, the larger the zoom factor is, and the farther it can be monitored and seen. The general 16x optical zoom focal length range is: 4-64mm, 18x optical zoom focal length range is: 3.1-73.8mm, 22x optical zoom focal length range is: 4-88mm or 3.6-79.2mm, while 23 times is 3.6-82.8mm, 25 times is 2.5-62.5mm, 27 times is 3.25-87.75mm, can be seen from the above, not the higher the zoom magnification see farther, such as 22x optical zoom close focus from 4mm, The longest can reach 88mm, and the 27x optical zoom starts from 3.25mm, so the farthest can reach 87.75mm, but 22 times less than the optical zoom, so the user should ask the manufacturer to provide a specific lens near focus when selecting the lens zoom factor. Far-focus parameters should not be one-sided to hear multiple advertisements on their advertisements.
Low illumination
In the actual monitoring process, changes and shortcomings of light have always been major challenges in security monitoring. However, in many occasions, there are many people passing through during the day and the light is adequate. The role of monitoring is rather weakened, and crime is often at night. Under cover, with the improvement of people's awareness of security monitoring, 24-hour monitoring has become an inevitable requirement for more and more occasions. The camera environment that can adapt to low illumination is already the basic quality of an integrated camera.
The effect of the camera under low illumination is affected by the following two factors:
One is whether it has an automatic color-to-black function. The camera with automatic color to black auto can automatically sense the brightness of the ambient light. When the light is dark, it will automatically change from the color mode to the black and white mode; when the light is bright, it will return to the color mode. This function can compensate for the unsatisfactory image defects of ordinary color cameras in low light conditions.
Second, depending on the minimum illumination of the product, it mainly refers to the need for the weakest light and the camera's agility, that is, the sensitivity of the CCD to the ambient light or the darkest light required when the CCD is normally imaged. The unit of illumination is Lux LUX. The smaller the value, the less light is needed and the more agile the camera is, 2-3LUX is the general illumination.
Functional performance
As the design of the integrated camera processing circuit becomes more and more sophisticated, the degree of digital processing of the video signal becomes higher and higher, and the functionality of the machine is gradually becoming stronger. Don't ignore these features, maybe it will improve the system's effectiveness, and let you get unexpected results. Such as the wide dynamic function, it can make the camera in the face of strong light, good light to suppress the dark part of the scene to make up for the dark area, so you get the ideal picture quality; there is a day and night conversion function, although not what The new features, but still an important indicator for the purchase of the project and the user, there are many other features like motion detection, synchronization, communication control, mirroring, etc., can be seen in today's integrated camera, these are very Easy to be ignored by the user, but it will play a significant role in the use process.

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