Used in high-rise residential buildings, apartment buildings inside and outside, inter-household information transmission, security door…

Unmanned aircraft, abbreviated as "UAVs", are unmanned aircraft operated by radio-controlled equipment and self-contained programmable…

Desktop, is an independent and separate computer, completely unconnected from other components, compared to notebooks…

1. The ability to adjust the focal length is one of the properties of a…

Lens coverings shield cameras' and camcorders' lenses from scuffs and other minor impacts. On the…

A telescope (telescope) is an optical instrument that uses lenses or mirrors and other optical…

1、Front-end acquisition system Camera, lens, gimbal, intelligent dome camera. 2、Video transmission system Transmission cable, fiber…

Projection refers to the projection of the shape of an object onto a plane with…

Blu-ray HD player can be said to be a special product of Blu-ray player in…

What is an Android tablet? It is a small, portable personal computer that uses a…