Purchase notice: The five elements of the integrated camera purchase

The difference between the purchase of integrated cameras and ordinary cameras is not particularly large, but because of the integrated design, the factors for selecting them are more and more complicated. Zhang Chuyuan, the deputy general manager of Beijing Zhizong Yucheng Technology Co., Ltd., told everyone that choosing an integrated camera requires five major factors.

First, the quality of the lens and DSP technology Zhang Chuyuan said that currently China's surveillance camera lens and DSP are basically using imported technology, in which the lens was Canon, sony occupied more than half of the country. Zhang Chuyuan stated that he likes sony because he has better color reproduction and insists that the monitoring needs to restore the scene's original video collection intention. However, he also pointed out that there are also many excellent camera manufacturers in China, each with its own technical advantages. Users can also carefully determine what they are buying.

Specifically to the choice of lens, Zhang Chuyuan said that the lens of the integrated camera is related to the zoom focus. The common zoom camera on the market is divided according to the focal length of the lens, ie, the value of f, which is 22 times and 27 times, which are two kinds of optical zoom. Multiple, also the true magnification of the camera. However, in order to increase the number of gimmicks, many merchants have added the magnification of the camera lens to the electronic magnification and become cameras such as "220 times", "270 times" or even 300 times or more. Zhang Zhiyuan showed that Zhang Zhiyuan reminded everyone that when purchasing a variable-speed integrated camera, do not be confused by the so-called variable magnification. The main magnification is only 22 times, 27 times, and 30 times. According to their actual needs and Appropriate choice of suitable lens, not blindly believe that the business advertised parameters.

The automatic zoom camera is mainly used in an unattended environment, and the manual zooming is not particularly used for monitoring points, and it needs to be manually debugged to complete the monitoring. In addition, Zhang Chuyuan reminded everyone that when choosing a surveillance camera, we must actually test it to understand the true performance of the lens.

Second, the stability of the camera motor Zhang Chuyuan said that the quality of the motor is a crucial factor in determining the quality of the camera. Compared with synchronous motor, DC motor performance is more excellent, but the price is relatively expensive, the same corresponding long service life, under normal circumstances, the choice of a DC motor camera life can reach five to ten years. However, many cameras on the market generally use synchronous motors, which creates many problems. For example, the power of the synchronous motor is relatively large, and the camera is exposed to severe heat generation during operation. The heat output is large, and the camera is prone to burn out during prolonged use. Therefore, when selecting an all-in-one camera, it is possible to incline to the DC motor if conditions and funds allow.

Third, camera compatibility Camera compatibility refers to the camera for multi-protocol support. Zhang Chuyuan said that because China's surveillance market is in the transition period of analog-to-digital conversion, various products in different stages of technological development appear simultaneously in the market, and different products support different protocols, which can easily cause incompatibility of surveillance systems. The problem. Therefore, a good camera, not just an integrated camera, should have strong adaptability to different monitoring systems. That is, it supports multiple protocols and can handle various standard video streams. After users purchase such a camera, they can use it. Excessive worry about the camera's incompatibility, the scope of application is more extensive and convenient.

Fourth, the camera's interface and scalability Zhang Chuyuan said that a good camera should have better scalability, dedicated interface to facilitate its intelligent digital upgrade, easy access to the monitoring network, rather than an island, to It can only have specific features from beginning to end. The expandable camera will have greater flexibility and applicability in use and should be the user's first choice.

V. Waterproof and explosion-proof design of the camera Zhang Chuyuan said that we cannot despise the waterproof explosion-proof housing design of the camera. In the outdoor application environment, a good waterproof explosion-proof design of the camera can ensure the camera's extension several times to several dozen times, bringing Cost-effectiveness is very intuitive. For a camera with a good water-proof and explosion-proof design, the general housing cost is relatively high, and the production process is also more complicated. When users purchase, they must make appropriate choices according to their own scope of use. Do not ignore this factor. .

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