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Path planning method suitable for aircraft under complicated low altitude

A path planning and aircraft technology, applied in navigation computing tools, etc., can solve problems such as increased computational complexity

Inactive Publication Date: 2014-07-09
北京如翼信息技术有限公司
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AI Technical Summary

Problems solved by technology

As the size of the problem grows, the computational complexity increases sharply

Method used

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  • Path planning method suitable for aircraft under complicated low altitude
  • Path planning method suitable for aircraft under complicated low altitude
  • Path planning method suitable for aircraft under complicated low altitude

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Embodiment Construction

[0091] The present invention will be further described in detail with reference to the accompanying drawings and embodiments.

[0092] First, the definitions involved are explained as follows:

[0093] 1. Flight conflict and flight collision: When the distance between two aircraft is less than the conflict threshold (collision threshold), it is considered that the two aircraft have a conflict risk (collision risk).

[0094] 2. Individual: Each individual represents a potential solution to the problem. Each individual is evaluated for its pros and cons, and with a certain probability, it is possible to carry out genetic manipulation and evolution. Individuals are also called chromosomes.

[0095] 3. Chromosomal coding: coding is a conversion method that converts the feasible solution of a problem from its solution space to the search space that the algorithm can handle. Coding has a great influence on the performance and population diversity of the intelligent optimization al...

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Abstract

The invention discloses a path planning method suitable for an aircraft under a complicated low altitude, and belongs to the technical field of flying management methods and systems. The method comprises the following steps of firstly establishing an aircraft path planning model, and carrying out path planning on a single aircraft by adopting a self-adaption difference target evolutionary algorithm. The invention also provides a path planning method of multiple aircrafts based on the path planning method of the single aircraft. The path planning method provided by the invention has the advantages that the method is a multi-machine coevolution conflicting liberation method, the operation efficiency is high, and a requirement of a planning path is met; single machine and multi-machine planning path requirements under a low altitude airspace free flying condition are met, the method has certain feedback arrangement, the security of path planning is guaranteed, and meanwhile, the high flying efficiency is also obtained.

Description

technical field [0001] The invention relates to a flight management method and system, which is a method suitable for path planning of general aircraft in complex low-altitude airspace. Background technique [0002] In principle, low-altitude airspace refers to the airspace below the true height of 1,000 meters, and the activities in this area are mainly general aviation aircraft. The low-altitude airspace environment is complex, and general aviation aircraft can fly freely in this area (proposed by the Federal Aviation Administration (FAA, Federal Aviation Administration), it is a new aviation concept that gives pilots the freedom to choose routes and fly in real time The right to state such as speed, that is, the implementation of autonomous management), strong autonomy. In some scenarios (such as emergency relief), the density of aircraft is high, and it is difficult to guarantee the safety and efficiency of flight. With the gradual opening of low-altitude airspace in m...

Claims

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Application Information

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IPC IPC(8): G01C21/20
CPCG01C21/20
Inventor 张学军曾捷管祥民
Owner 北京如翼信息技术有限公司
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