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Data chain channel allocating method for automatic formation of unmanned air vehicle

A technology for unmanned aerial vehicles and channel allocation, which is applied in the field of data link channel allocation for autonomous formations of unmanned aerial vehicles. It can solve problems such as the inability to meet the requirements of the formation control system of unmanned aerial vehicles and insufficient data link reliability, and achieve optimal node update rates. , optimize the system update rate, eliminate the effect of sending time

Inactive Publication Date: 2010-02-10
BEIHANG UNIV
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AI Technical Summary

Problems solved by technology

However, the existing data link is not designed for the use of such a high information update rate, and cannot meet the requirements of the UAV formation control system
[0006] 2. Insufficient data link reliability

Method used

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  • Data chain channel allocating method for automatic formation of unmanned air vehicle
  • Data chain channel allocating method for automatic formation of unmanned air vehicle
  • Data chain channel allocating method for automatic formation of unmanned air vehicle

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Embodiment Construction

[0036] The present invention will be further described in detail with reference to the accompanying drawings and embodiments.

[0037] The present invention is a kind of data link channel distribution method used for autonomous formation of unmanned aerial vehicle, the flow process of this method is as follows figure 1 As shown, the data link time slot structure is defined first, then the time slot allocation is performed, and then the dynamic time slot reservation is performed. Finally, the physical realization method is given. The specific steps of the method are as follows:

[0038] Step 1: Define the data link slot structure

[0039] This data link adopts the time division multiple access technology TDMA mechanism to construct a network time slot structure of 16 nodes. Nodes send their own information in the time slots they occupy, and one time slot can only be occupied by one node. The slot structure is as figure 2 As shown, taking 200ms as a frame, three frames form a...

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Abstract

The invention discloses a data chain channel allocating method for automatic formation of an unmanned air vehicle, comprising the following steps: firstly, defining a data chain time slot structure; and then allocating time slot; finally, performing dynamic time slot reservation. According to application condition and requirement of the system, the invention provides a compound dynamic TDMA mechanism channel allocating method based on a fixed allocation and a reservation mechanism and solves different requirements of all the nodes of the system for updating the information; different channel allocation techniques are adaptively applied according to the sum of different network nodes, thereby promoting the channel output of the system in each period, bringing in node circulation auxiliary protocol, avoiding high requirement for synchronization of the time slot, and promoting the stability of overtime system when data frame is sent by part of nodes. Thus, the resource of the system is utilized to the most extent.

Description

technical field [0001] The invention belongs to the technical field of mobile communication, and in particular relates to a data link channel allocation method for autonomous formation of unmanned aerial vehicles. Background technique [0002] The data link is defined as a communication link and network that uses automated radio transceiver equipment to transmit and exchange load data information between users based on a common communication protocol. By definition, a system should consist of a communication protocol that is commonly observed between various radio transceivers and users. Among them, the data link channel allocation method is used to control the occupancy of the shared channel by each node, so that the channel utilization rate is the highest and the information does not collide. [0003] The formation flight of UAVs shares the position, attitude, decision-making and other information of each aircraft through the data link, so the data link needs to complete ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W80/00H04B7/26
Inventor 吴森堂刘星穆晓敏彭琛孙健杜阳冀湘予张有光唐积强
Owner BEIHANG UNIV
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