What signal does the current drone rely on to control?

UAV transmits control signals and communication data through wireless electromagnetic waves.

The UAV is equipped with autopilot, which communicates with the ground control station through frequency hopping radio, and uses GPS and inertial navigation for joint guidance.

The specific method is as follows:

Control signal and drive signal conversion, this is the protocol you defined. At present, the mobile phone can only be used as a client, that is, it can only be accessed but not accessed, so an intermediary server must be assumed to realize the direct data interaction between the plane and your mobile phone.

Simple scheme, a WAP server, and a mobile phone terminal (with Internet access) module on the plane. Through the timer, it constantly reads control information from the server and submits its own status information. The mobile phone section regularly obtains the state information of the aircraft from the server and submits the control information at the same time.

Control status, etc. It's a custom protocol.