Light airplane comprehensive obstacle avoiding system

Abstract

The invention provides a light airplane comprehensive obstacle avoiding system. The light airplane comprehensive obstacle avoiding system comprises data acquisition equipment including aviation bus conversion equipment, GPS (Global Position System) equipment and two high-definition cameras and the like, data processing equipment including two sets of video processing equipment, an embedded type computer, a server and the like, and man-machine interaction equipment including a control panel, sound equipment, a liquid crystal display and the like. The two high-definition cameras are integrated and designed into a nacelle and the optical axes are parallel; and an image plane is parallel or overlapped so that a distance measuring error is reduced. The video processing adopts an FPGA+FIFO+DSP (Field Programmable Gate Array+First-In First-Out-Digital Signal Processor) framework, and a DSP is connected by a high-speed interface. The GPS is fused with a digital map and the like so that known obstacles are avoided. The unknown obstacles are realized by real-time video processing. The server is operated by adopting a website form. The light airplane comprehensive obstacle avoiding system has the advantages that an avionics comprehensive technology, a vision identification technology and a digital map technology are adopted so that a light airplane comprehensive obstacle avoiding function is realized; and the video processing speed is rapid, and the system is economical and intelligent.

Description

technical field [0001] The invention relates to the field of avionics, in particular to a light aircraft comprehensive obstacle avoidance system. Background technique [0002] Light aircraft generally refer to aircraft with a maximum take-off weight of less than 5,700 kg, and are widely used in private flights, business flights, commercial transportation, air tours, flight training, aviation clubs, geological exploration, aerial photography, emergency rescue, planting and fertilization, forestry and Fishery patrol, fire fighting and prospecting, etc. It has the characteristics of lightness, easy operation, low price, and slow flying speed. It is suitable for light aircraft flying and complex operating environments, such as low altitude, valleys, cities, etc. Natural obstacles such as mountains and trees and artificial obstacles such as transmission towers, buildings, and high-voltage lines have a great impact on flight safety. Due to low prices, light aircraft generally do ...

AI Technical Summary

Problems solved by technology

Natural obstacles such as mountains and trees and artificial obstacles such as transmission towers, buildings, and high-voltage lines have a great impact on flight safety. Due to low prices, light aircraft generally do not install air collision avoidance systems, ground proximity warning systems, terrain following systems, terrain avoidance systems, In the obstacle avoidance system, the avionics equipment is only equipped with some necessary instruments and meters, and lacks identification and avoidance means for obstacles, which is prone to collision accidents with obstacles. land and other issues

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