Grid based path search method for UAV delivery operations in urban environment

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United States of America

PATENT NO 11915599
SERIAL NO

17468615

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Abstract

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The present invention provides a method for planning a shortest possible three-dimensional path for autonomous flying robots to traverse from one location to the other in a geographical region, including translating a three-dimensional (3D) environment, discretizing the 3D environment into a graph of many grid cells or nodes, employing a modified any-angle path planning algorithm to calculate non-uniform traversal cost of each grid cell and by averaging the total traversal costs along the path to shorten the corresponding computation time, whilst incorporating operational costs other than the traversal cost specific to the autonomous flying robots to be traversed. The shortest possible path found by the present method does not only consider the path length, but also takes different costs of traversing and operating the flying robots into account, which increases its feasibility and flexibility to be applied in a wide variety of situations and technological areas.

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Patent Owner(s)

Patent OwnerAddress
CITY UNIVERSITY OF HONG KONG83 TAT CHEE AVENUE KOWLOON
HANGZHOU ANTWORK NETWORK TECHNOLOGY CO LTDB101 WEI LAI YAN CHUANG YUAN LONG TAN ROAD 7 YU HANG DISTRICT HANGZHOU

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
He, Fang Wuhan, CN 61 245
Li, Lishuai Hong Kong, HK 3 3
Zhang, Lei Hangzhou, CN 2799 20393

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