An unmanned aerial vehicle optimal communication route planning method based on a 4G network

A communication route and unmanned aerial vehicle technology, applied in vehicle wireless communication service, service based on location information, service based on specific environment, etc., can solve local optimal computational complexity, uneven distribution of 4G network, ground control terminal Lost contact and other problems, to achieve the effect of reducing the complexity of pathfinding calculations, avoiding entering signal blind spots, and high communication reliability
CN109670656AActive Publication Date: 2019-04-23CHONGQING UNIV OF POSTS & TELECOMM
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHONGQING UNIV OF POSTS & TELECOMM
Publication Date
2019-04-23

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Abstract

The invention relates to an unmanned aerial vehicle optimal communication route planning method based on a 4G network, and belongs to the technical field of mobile communication, The method comprisesthe steps of S1, carrying out the space modeling and grid division: S2, establishing a database of a three-dimensional space based on a grid method, and recording an RSRP of a 4G signal at any position in a grid node; S3, pre-planning a flight path, connecting a starting point with a terminal point, and using a connecting line as the pre-planned path; S4, re-planning a flight route, solving a newre-planned route by utilizing a three-dimensional linear rasterization algorithm and a route routing algorithm and utilizing secondary data; and S5, solving an optimal route through an improved path finding algorithm. According to the method, the path finding calculation complexity is reduced through grid method modeling, meanwhile, the optimal solution is obtained through the path finding algorithm, and it is guaranteed that the unmanned aerial vehicle is prevented from entering a signal blind area.
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Description

technical field

[0001] The invention belongs to the technical field of mobile communication, and relates to a route planning method for an unmanned aerial vehicle based on a pathfinding algorithm. Background technique

[0002] In recent years, UAV-related technologies have been vigorously developed. In addition to civilian entertainment, it can also be used in film and television photography, environmental monitoring, fire detection, target tracking, etc. At the same time, it also has the function of automatic pathfinding. Plan the optimal route.

[0003] At present, civilian drones are mostly controlled by radio frequency remote controllers. The control distance is short and the signal is easily blocked by obstacles. Under today's communication conditions, 4G networks have been able to spread throughout the main areas of major cities and can meet the needs of most users. , provides excellent conditions for solving the communication distance limitation problem encountered b...

Claims

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