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A method of flight plan safety judgment and early warning based on four-dimensional trajectory operation

A safety and flight technology, applied in the field of flight planning safety judgment, can solve the problems of increased workload of controllers and pilots, ineffective use of airspace, and low level of air traffic safety. The effect of flight safety level and balanced utilization rate

Active Publication Date: 2021-03-30
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing methods do not have a flight plan safety judgment or evaluation method based on the maximum use of space, resulting in a low level of air traffic safety, increased workload of controllers and pilots, and limited airspace. Problems that cannot be effectively used

Method used

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  • A method of flight plan safety judgment and early warning based on four-dimensional trajectory operation
  • A method of flight plan safety judgment and early warning based on four-dimensional trajectory operation
  • A method of flight plan safety judgment and early warning based on four-dimensional trajectory operation

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specific Embodiment approach 1

[0054] Specific implementation mode one: combine figure 1 To describe this embodiment,

[0055] A method for judging and early warning of flight plan safety based on four-dimensional track operation, comprising the following steps:

[0056] Step 1: 2 hours before the flight, retrieve the flight plan F of flight A A aircraft type, waypoints, planned time passing through each waypoint, and the maximum flight speed limit information of the aircraft allowed in the airspace; the route segment formed by every two way points is numbered as route segment r, r=1, 2, 3, ...,k;

[0057] Step 2: Extract flight plan F A Involved airspace configuration information (including airspace name, attribute, boundary, opening time), determine whether the airspace contains special airspace (including prohibited airspace, restricted airspace, dangerous airspace); generate time-space Special airspace set L;

[0058] Extract flight plan F A Involved airspace meteorological information to determin...

specific Embodiment approach 2

[0065] In the second step of the present embodiment, the process of generating the space-time special airspace set L is as follows:

[0066] First, take the plane where the route segment r is located as the x-y plane, and use time as the z-axis to establish a three-dimensional coordinate system, representing the space-time space (equivalent to all the space of the route segment during cruising);

[0067] Secondly, select appropriate discretization parameters to discretize the space-time space into several discretization units; determine the attributes of each discretization unit according to the location, boundary, and opening time information of the special airspace: mark the discretization unit corresponding to the ordinary airspace as 0, the discretization unit corresponding to the special airspace is marked as 1, and the spatiotemporal special airspace set L is generated.

[0068] Other steps and parameters are the same as those in the first embodiment.

specific Embodiment approach 3

[0070] In Step 2 of this embodiment, the process of generating the spatiotemporal severe weather affected area set W is as follows:

[0071] Consider the moving center of severe weather as its moving center of mass, and generate the space-time path of severe weather according to the predicted movement trajectory; and use the expected spread range as the radius to determine the influence range of severe weather in time and space; discrete in the space-time and space On the basis of normalization, the discretization unit corresponding to the ordinary airspace is marked as 0, and the discretization unit corresponding to the spatio-temporal severe weather affected area is marked as 1, so as to generate the spatio-temporal severe weather affected area set L.

[0072] Other steps and parameters are the same as those in Embodiment 1 or 2.

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Abstract

The invention discloses a flight plan security judgment early-warning method based on four-dimensional flight path operation, and relates to the technical field of air traffic. The invention aims at solving a problem that there is no quantification method for the flight plan security based on the four-dimensional flight path operation currently. The method comprises the steps: calculating a space-time accessible domain between each two planned flight path point for each aircraft; determining the occurrence position and time of a conflict through recognizing a potential space-time conflict region of each aircraft, and considering the aircraft movement under the impact of various uncertain factors as the irregular Brownian movement; calculating the conflict probability of each aircraft underthe flight plan as the quantification basis for the flight plan security. Through the optimization of the flight plan, the method can effectively improve the security of the air traffic, and balancesthe conflict between the high-speed increasing demands for the air traffic and the limited space resources. The method is suitable for the judgment early warning of the security of the flight plan.

Description

technical field [0001] The invention relates to the technical field of air traffic, in particular to a method for judging the safety of a flight plan. Background technique [0002] Flight plan is the core of airline products and the basis of various business activities of the company, but it is also an important basis for providing air traffic services. A reasonable flight plan is of great significance to reduce the potential risk of aircraft conflicts, ensure air traffic safety, and balance airspace utilization. Especially under the condition of limited civil airspace resources in our country, with the continuous growth of air traffic demand, airspace resources are becoming more and more tense, and the competition for airspace resources among aircraft is bound to produce conflicts, which will seriously affect the service quality of air transportation , which hides a huge security risk. [0003] Under the current air traffic management system, the formulation of the flight...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G5/00G08G5/04
CPCG08G5/00G08G5/003G08G5/04
Inventor 程绍武张亚平郝斯琪
Owner HARBIN INST OF TECH
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