Surveillance, as the name suggests, refers to backend control and monitoring, which is an important field in security. Surveillance can be seen everywhere in our daily lives, bringing us a lot of convenience and deterring many bad people who want to break the law.

The earliest camera was invented by Jules Jean Saint in Paris, France in 1874. At that time, cameras were the earliest cameras. After generations of improvement, various types of cameras have emerged, and cameras are also a branch of them. In 1987, China also began to use cameras. At that time, cameras were high-tech products with high prices, and only a portion of people used them before they became popular.

But the learning and manufacturing capabilities of Chinese technology companies are quite impressive. After some learning and manufacturing, cameras began to become popular around 2006. At the beginning, analog cameras were used for monitoring, and at that time, the monitoring system was also known as closed-circuit television monitoring, which meant that it could only be watched by oneself and could not be viewed remotely or shared. If there is interference near the monitoring area, it is also necessary to buy anti-interference devices. But the TV screen often shows striped patterns and the pixel count is not high

Of course, this belongs to early surveillance cameras, just like our youth when they were still immature. In order to better meet the needs of daily life, coaxial high-definition network cameras have emerged. In terms of wiring, this camera still uses coaxial cables like analog cameras, but there has been a significant improvement in image pixels, with more delicate picture quality. Perhaps coaxial high-definition cameras are just like our youth, slightly mature. It comes and goes quickly, just like our youth.

Not long after the emergence of coaxial high-definition cameras, digital network cameras emerged, and there are many advantages to digital network cameras. It can be said to be superior to coaxial and analog cameras. So coaxial high-definition cameras are also known as transitional cameras in cameras.

Nowadays, almost all digital network cameras are used on the market, and network cables are used for dedicated transmission. If the distance is far, fiber optic transmission can be used, which is relatively convenient for comprehensive cabling. In terms of pixel selection, there are 8 million pixels to choose from. Remote viewing and sharing functions are also available.

The camera function is becoming more and more perfect, and the development of Chinese technology companies is also getting better. Foreign companies that used to occupy the surveillance market in China are now having a decreasing market share.

The improvement of cameras is still ongoing, and the development of Chinese technology companies will continue to improve.