Unmanned aerial vehicle and supervision method and monitoring system for flight state thereof

A supervision method for a flight state of an unmanned aerial vehicle comprising:

• respectively establishing communication connections with the unmanned aerial vehicle and a supervision server;
• receiving identity information about the unmanned aerial vehicle and flight information about the unmanned aerial vehicle sent by the unmanned aerial vehicle;
• automatically sending the identity information about the unmanned aerial vehicle and the flight information to the supervision server in an on-line mode;
• receiving at least one of a flight restriction instruction or warning information sent by the supervision server;
• forwarding the flight restriction instruction to the unmanned aerial vehicle, so that the unmanned aerial vehicle executes the flight restriction instruction, thereby restricting flight behaviour of the unmanned aerial vehicle in an on-line flight mode via the flight restriction instruction;
• switching, after having established the communication connection with the supervision server, a mode of a control terminal controlling the unmanned aerial vehicle to an on-line mode, the on-line mode referring to that the control terminal keeps a communication connection state with the supervision server;
• and
• switching, after having terminated the communication connection with the supervision server, the mode of the control terminal to an off-line mode, the off-line mode referring to that the control terminal has not established the communication connection with the supervision server.