The main reason for the emergence of network surveillance cameras is to adapt to a more and more advanced network society in the future. With the increasing speed of the Internet, it is very common for people who separate the two places to communicate and communicate with each other through the network. So, under what circumstances should you use a home network surveillance camera?
First, there are elderly people and children in the family and need to know their situation at any time. At this time, as long as the webcam is installed, whether we are at work or on business, changes at home can be done at any time. The second is to ensure the safety of family property to the maximum extent, fire prevention, theft prevention, and in the event of an accident, be able to receive an alert in a timely manner. In general, if you encounter one of the above two situations, you will need to use a home webcam.
How to choose a network surveillance camera
1. The product parameters are not as high as possible. The difference in parameters between different products directly reflects the level of product performance, but not the higher the more ideal. Taking resolution as an example here, if you think that a web camera with a resolution of only 300,000 pixels (image resolution of 640 x 480) is hard to do, you are wrong.
2. The more functions are better, the more you use them. As mentioned earlier, the webcam has more functions, but it does not mean that the more features the product is more suitable for us. The reason is simple. The more functions there are, the higher its price, and some functions are not necessarily used by everyone. If your surveillance area is small, optical zoom will not work. If you are not at home during the day, then automatic infrared night vision is useless. And the reasonable choice of these functions is directly related to the price of the product, but also related to our purchase cost.
Since the transmission of network surveillance cameras mainly depends on the network, if the resolution of the camera is too high, the resulting data will be large, and the network will have difficulty in real-time transmission. Judging from current network conditions, the 640×480 delivery rate is basically the upper limit of real-time image transmission. So why are some products with high resolution, some even reach 2 million pixels (resolution 1600 × 1200)? The reason is very simple, these products in use, in addition to the network through the image transmission, but also Images are stored locally (such as using a memory card or connected to a computer, while others can be connected to a NAS). At a critical moment, these high-definition images will play a vital role, but in this way, the overall cost will be much higher.
In addition, we still need to pay attention to some details in the actual purchase. First of all, look at the surveillance camera's volume, in general, the smaller the better, because the smaller it will not attract attention. Second, it is necessary to see if the accessories are complete, especially if the accessories that are needed for fixing are complete. In addition, if you can, it is better to have a few more fixed parts. In this way, if there is an error in the installation, there are spare parts. Finally, to give priority to wireless products, the biggest advantage is to reduce the wiring trouble, and the placement is more casual. Of course, the premise is that there must be a wireless router in the home, and it is necessary to ensure that the position of the surveillance camera has enough signals to transmit the image data.
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