Aircraft autonomous obstacle avoidance system and method and aircraft

Abstract

The invention belongs to the technical field of aircrafts, and discloses an aircraft autonomous obstacle avoidance system and method and an aircraft. The autonomous obstacle avoidance system comprisesa solar power supply module, an image acquisition module, an obstacle information detection module, a central control module, an analysis and judgment module, an instruction generation module, a pathplanning module, a stability analysis module and a display module. According to the invention, the path planning module adjusts a flight planning trajectory when judging that another aircraft will collide with the aircraft, so as to ensure that a safe flight trajectory is planned for the aircraft; the flight safety is greatly improved; the stability analysis module can greatly reduce the computational cost while ensuring the prediction accuracy, so that the qualitative and quantitative research on the dynamic stability characteristic of the entire flight domain of the aircraft can be easily carried out; and a design direction which has a guiding significance for the aircraft design is acquired.

Description

technical field [0001] The invention belongs to the technical field of aircraft, and in particular relates to an aircraft autonomous obstacle avoidance system, method and aircraft. Background technique [0002] A flight vehicle is a device that flies in the atmosphere or in the space outside the atmosphere (space). Aircraft are divided into 3 categories: aircraft, spacecraft, rockets and missiles. Those flying in the atmosphere are called aircraft, such as balloons, airships, airplanes, etc. They rely on the static buoyancy of the air or the aerodynamic force generated by the relative motion of the air to lift into the air. Those flying in space are called spacecraft, such as artificial earth satellites, manned spacecraft, space probes, and space shuttles. Driven by the launch vehicle, they gain the necessary speed to enter space, and then rely on inertia to make orbital motion similar to celestial bodies. However, the existing aircraft autonomous obstacle avoidance syst...

AI Technical Summary

Problems solved by technology

[0004] (1) The existing aircraft autonomous obstacle avoidance system has low safety; at the same time, the flight stability test of the aircraft is complex, cumbersome, and has large analysis errors

[0005] (2) In the process of collecting the environmental image in front of the aircraft flight in the prior art, in the case of multiple moving targets occluded and overlapped, the traditional target tracking algorithm cannot effectively improve the success rate of moving target tracking

[0006] (3) In the prior art, the millimeter-wave radar performs multi-target detection on the obstacles within the detectable distance in front, and in the process of obtaining the position, speed and orientation information of the obstacles, when working in a complex detection background, the echo signal It is unavoidable to be mixed with many clutter components, and the traditional algorithm cannot effectively eliminate the clutter components left in the form of false targets

[0007] (4) In the process of analyzing and judging the danger of obstacles according to the collected images and obstacle information in the prior art, the decision tree of the dangerous degree of obstacles is established by using traditional algorithms according to the collected images and obstacle data information, which cannot be quickly Determining Obstacle Hazards

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