2. Providing air traffic control services, aiming at preventing collisions between civil aircraft and obstacles, and maintaining and accelerating the orderly activities of air traffic.
3. Providing flight information services, aiming at providing information and suggestions that are helpful for safe and effective flight implementation.
4. Providing alarm service, aiming at informing relevant departments when civil aircraft needs search and rescue, and assisting relevant departments in search and rescue as required.
control system
The Russian/Chinese standard was set as today's model after the increase of foreign air traffic in the 1960s and 1990s, but it mainly follows the regulations of ICAO, but the aircraft entering its flight information region need to take the meter as the height unit, and the western and Soviet-made aircraft have different technical settings.
No matter what kind of system, controllers and pilots must be able to talk in English, but some countries allow dialogue in local languages. Taiwan Province Province and Chinese mainland each have a set of Chinese ATC vocabulary and dialogue rules.
Extended data:
Spatial classification
ICAO classifies airspace as:
1, Class A: All aircraft require instrument flight (IFR), and all aircraft are also forced to coordinate intervals by air traffic control.
2. Class B: All aircraft can fly in instrument (IFR), visual flight (VFR) or special visual flight (SVFR), and all aircraft are forced to coordinate their intervals by air traffic control.
3. Class C: All aircraft can fly with instrument (IFR), visual flight (VFR) or special visual flight (SVFR). All aircraft are separated, and the aircraft flying visually will be supported by air traffic control to avoid other aircraft flying visually.
4. Class D: All aircraft can fly in instrument flight (IFR), visual flight (VFR) or special visual flight (SVFR). All aircraft are separated, and the visual flight aircraft will be supported by air traffic control to avoid all aircraft.
5. Class E: All aircraft can fly in instrument (IFR), and all aircraft can fly in visual mode (VFR) or special visual mode (SVFR) separately. Aircraft flying by sight will be supported by air traffic control to avoid other aircraft flying by sight, but aircraft flying by sight do not need the approval of air traffic control.
6. Class F: All aircraft can fly according to instrument flight rules and visual flight rules, and all aircraft are separated. Only the aircraft with instrument flight will be supported by air traffic control to avoid other aircraft.
7. Class G: All aircraft can fly by instrument (IFR) and by sight (VFR). All aircraft will not be separated by air traffic control, and their spacing needs to be coordinated by themselves. All aircraft can avoid other aircraft through the basic information provided by air traffic control, but they can also avoid contacting air traffic control or monitoring channels.
References:
Baidu encyclopedia-air traffic management