How did the aerial camera of the World Cup "fly" all over the stadium? Doesn't look like a wire.

Generally, the World Cup is a flying cat system, and "flying cats" can be used. To put it bluntly, it is a photographic system in which several steel wires slide.

I remember that the speed can exceed 120 yards, 360-degree rotation and dive. Real-time transmission

Multi-axis small aircraft became popular in recent 1.2 years. Mainly because of the miniaturization of digital cameras.

I don't think this will be used in the World Cup. After all, reliability, operability and speed are not as good as flying cats.

Flying cats have been used for many years, and there are many kinds, which are more reliable.