Foreign object detection method and foreign object detection equipment based on static clutter graph

Abstract

The invention discloses an FOD detection method and device based on static clutter maps. The method includes the steps that initial static clutter data are acquired, and initial static clutter maps in each layer are calculated according to different distances and directions; two-dimensional registration, correction, filtration and registration between three layers are carried out on the multiple initial static clutter maps to obtain the final static clutter maps in each layer; initial object clutter maps under scanning frames are acquired, and two-dimensional registration, correction, filtration and registration between three layers are carried out on the initial object clutter maps under the scanning frames to obtain object clutter maps under current scanning frames; the static clutter maps are compared with the object clutter maps according to FOD discrimination criteria to obtain FOD position information. In this way, the problem that labor cost is increased because specific positions of FOD cannot be accurately provided in the prior art is solved; thus, by providing the specific positions of the FOD, the difficulty of removing the FOD is reduced for working staff, and economic losses are reduced.

Description

technical field [0001] The invention relates to a foreign matter detection method and foreign matter detection equipment, in particular to a foreign matter detection method and foreign matter detection equipment based on a static clutter map. Background technique [0002] With the substantial increase in passenger traffic at civil airports, the number of foreign objects (Foreign Object Debris, referred to as FOD) falling on the airport runway has increased significantly. Typical examples of foreign objects include: concrete asphalt fragments, metal devices, rubber fragments, plastic products, flora and fauna. [0003] Aircraft are quite fragile to FOD. A bird or a small piece of plastic sheet inhaled into the engine may cause an air stop. A screw or metal piece or even a sharp stone may puncture the tire and cause a blast. The resulting tire fragments may damage the aircraft body Or important components such as hydraulic pipes, mailboxes, etc. The FOD event that attracted ...

AI Technical Summary

Problems solved by technology

[0006] In view of the above existing problems, the present invention provides a foreign object detection method and foreign object detection equipment based on static clutter graphs to overcome the problem that the specific location of FOD cannot be accurately provided in the prior art, resulting in increased labor costs, thereby accurately providing The specific location information of FOD reduces the difficulty for staff to remove foreign objects and reduces economic losses

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