4 results about "Flight level" patented technology

The invention provides a low-altitude traffic operation control method and system based on moving block. The method comprises the following steps: layering an airspace according to aircraft type performance and service types for the vertical take-off and landing aircraft, and distributing corresponding entering and leaving areas according to flight height layers of the aircraft; quasi-moving block is introduced into a low-altitude traffic system, an air route network and operation rules are designed, a free area-buffer area-block area three-level space structure of an aircraft is dynamically constructed according to the state of the aircraft, when the front aircraft occupies a certain block area, the first area in front of the block area is a buffer area, and the second area in front of the block area is a block area. The second zone in front of the blocking zone is a free zone, the aircraft flies in the free zone according to the current speed, and the aircraft is selected for braking in the buffer zone according to the braking distance obtained through calculation. According to the method, the braking curve is generated by dynamically dividing'free area-buffer area-block area 'and combining the braking performance, so that the safety redundancy is increased, and the safety and airspace utilization rate is improved.

The invention provides a busy waypoint traffic capacity simulation evaluation method based on a release interval. The method comprises the following steps: step 1, preprocessing flight track data of a flight; step 2, extracting waypoint operation characteristic parameters; step 3, waypoint traffic capacity evaluation simulation; according to the method, traffic flow distribution conditions of different height layers at waypoints, passing-point flight release time interval distribution, aircraft model hybrid ratio and other characteristic data are counted based on historical data, a waypoint topological structure is combined, a busy flight height layer of a busy waypoint serves as an experimental scene, and the simulation evaluation method is constructed.

A control method for a flight level change mode, and an automatic flight system. The control method comprises: on the basis of a signal acquired from engines regarding whether the engines operate in a dual-engine mode or a single-engine mode, selectively setting respective different vertical speed thresholds during climb and descent processes in a flight level change mode.

This invention provides a method and system for low-altitude traffic operation control based on moving block. The method includes: stratifying airspace according to aircraft type and service type for vertical takeoff and landing (VTOL) aircraft; allocating corresponding approach and departure areas based on the aircraft's flight altitude layer; introducing quasi-moving block into the low-altitude traffic system; designing the airway network and operational rules; and dynamically constructing a three-level spatial structure of free zone – buffer zone – block zone based on the aircraft's status. When an aircraft occupies a block zone, the first zone before that block zone becomes the buffer zone, and the second zone before that block zone becomes the free zone. The aircraft flies at its current speed in the free zone and brakes at the appropriate time in the buffer zone based on the calculated braking distance. This invention increases safety redundancy and improves safety and airspace utilization by dynamically dividing the "free zone – buffer zone – block zone" and generating braking curves based on braking performance.