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Path planning and spectrum resource allocation method and system for multiple unmanned aerial vehicles

A spectrum resource allocation and path planning technology, which is applied in the field of multi-UAV path planning and spectrum resource allocation, can solve problems such as the inability to achieve full coverage of the disaster-stricken area network and rational allocation of frequency resources, to improve network coverage and data collection Efficiency, optimization of the number of deployments, and the effect of reducing delay

Pending Publication Date: 2022-05-06
CHINA TELECOM CLOUD TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Therefore, the technical problem to be solved by the present invention is to overcome the defects in the prior art that cannot realize the full coverage of the disaster-affected area network and the reasonable allocation of frequency resources, thereby providing a multi-UAV path planning and spectrum resource allocation method and system

Method used

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  • Path planning and spectrum resource allocation method and system for multiple unmanned aerial vehicles
  • Path planning and spectrum resource allocation method and system for multiple unmanned aerial vehicles
  • Path planning and spectrum resource allocation method and system for multiple unmanned aerial vehicles

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Embodiment 1

[0034] An embodiment of the present invention provides a multi-UAV path planning and spectrum resource allocation method, such as figure 1 shown, including the following:

[0035] Step S11: use the preset simulation method to simulate the distribution of ground terminals and the distribution of hotspots after the disaster respectively, and obtain multiple ground terminal clusters centered on hotspots.

[0036] Specifically, in the embodiment of the present invention, the present invention uses a Poisson point process (PPP) to simulate the location distribution of hotspots. Hotspots include: densely populated areas, such as schools, hospitals, etc.; Therefore, the density of ground terminals between disaster areas will also vary accordingly. The Thomas clustering process (TCP) is used to describe the location distribution of ground terminals. Ground terminals are communicable devices carried by trapped people. Each cluster will be represented by The hotspots are clustered as c...

Embodiment 2

[0079] An embodiment of the present invention provides a multi-UAV path planning and spectrum resource allocation system, such as Figure 5 shown, including:

[0080] The simulated distribution module is used to simulate the distribution of post-disaster ground terminals and the distribution of hotspots using preset simulation methods to obtain multiple clusters of ground terminals centered on hotspots; this module executes the method described in step S11 in Embodiment 1 , which will not be repeated here.

[0081] The UAV deployment module is used to configure the UAV for each ground terminal according to the distance between each UAV and each cluster and the number of ground terminals that each UAV can access; this module executes the embodiment The method described in step S12 in 1 will not be repeated here.

[0082] The spectrum resource allocation module is used to realize the channel access of UAVs by using TDMA technology, and calculate the amount of data currently re...

Embodiment 3

[0084] An embodiment of the present invention provides a computer device, such as Figure 6 As shown, it includes: at least one processor 401 , such as a CPU (Central Processing Unit, central processing unit), at least one communication interface 403 , memory 404 , and at least one communication bus 402 . Wherein, the communication bus 402 is used to realize connection and communication between these components. Wherein, the communication interface 403 may include a display screen (Display) and a keyboard (Keyboard), and the optional communication interface 403 may also include a standard wired interface and a wireless interface. The memory 404 may be a high-speed RAM memory (Ramdom Access Memory, volatile random access memory), or a non-volatile memory (non-volatile memory), such as at least one disk memory. Optionally, the memory 404 may also be at least one storage device located away from the aforementioned processor 401 . The processor 401 can execute the method for pat...

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Abstract

The invention discloses a multi-unmanned aerial vehicle path planning and spectrum resource allocation method and system, and the method comprises the steps: simulating ground terminal distribution and hotspot distribution, and obtaining a plurality of clusters; according to the distance between each unmanned aerial vehicle and each cluster and the number of the ground terminals capable of being accessed by each unmanned aerial vehicle, the unmanned aerial vehicles are configured for the ground terminals, and the network coverage rate and the data acquisition efficiency of the emergency communication system are improved through network coverage of different disaster areas and cooperation between the unmanned aerial vehicles on the same layer; based on the interference parameters of other unmanned aerial vehicles and the channel gain between the unmanned aerial vehicles and the ground terminal, calculating the data volume currently received by each unmanned aerial vehicle, and according to the data volume currently received by each unmanned aerial vehicle, in combination with the multi-dimensional influence parameters, obtaining the maximum arrangement income as the target. A COBSO intelligent algorithm is utilized to allocate frequency resources for each unmanned aerial vehicle, and the trajectory and deployment number of the unmanned aerial vehicles are optimized, so that the utilization rate of limited bandwidth resources and the life cycle of the system are improved.

Description

technical field [0001] The invention relates to the fields of UAV application, emergency communication and mobile edge computing, in particular to a multi-UAV path planning and spectrum resource allocation method and system. Background technique [0002] With the development of science and technology, people can use smart terminal devices such as mobile phones and computers to communicate with others anytime and anywhere. The communication between people has no barriers of time and space. Information, the main way to connect with the world. However, when natural or man-made disasters such as earthquakes, fires, tsunamis, and wars occur, the communication infrastructure on the ground will suffer huge damage or even be completely destroyed, which will greatly hinder the timely rescue of rescuers, and further greatly Threats to the safety of the lives and property of the trapped persons. Thanks to the increasingly mature manufacturing process and stable performance of UAVs, U...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/185H04W16/10H04W16/18H04W16/22
CPCH04B7/18502H04W16/18H04W16/10H04W16/22
Inventor 胡星星
Owner CHINA TELECOM CLOUD TECH CO LTD
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