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Data link simulation model

A data chain and model technology, applied in the field of data chain, can solve the problems of large gap in simulation results, unable to reflect the real situation of the data chain well, and unable to reflect the connection characteristics of the data chain, etc., to achieve the effect of adjustment and optimization

Active Publication Date: 2020-08-28
BEIJING RES INST OF MECHANICAL & ELECTRICAL TECH
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Problems solved by technology

The advantage of this mathematical model is that it can basically simulate the delay characteristics of the data link. Connectivity characteristics, the gap between the simulation results and the real data link characteristics is large, and it cannot reflect the real situation of the data link work well

Method used

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Embodiment Construction

[0043] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0044] The data link model is used in the simulation process of the system, and is intended to realize data interaction between nodes (like a WeChat group). The data link model is regarded as an independent module in the system and is paralleled with the equipment of each node. The input and output terminals of all nodes are connected to the output and input terminals of the data link model through the interface. All nodes send data packets to the data link model according to their own timing. output of the output.

[0045]Since the main influence of the data link model on the whole system is connectivity (connectivity indirectly affects delay characteristics) and delay characteristics, therefore, in the embodiment of the present invention, the data link model mainly focuses on the connectivity between nodes And delay characteristics, and the...

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Abstract

The invention discloses a data link simulation model, which comprises a parameter setting module, a node connectivity calculation module, a data updating check module, a time delay calculation moduleand a data output check module, the node direct connection relationship can be judged according to performance parameters of a data link and node state information, the hop count among the nodes in asubnet and the division condition of the subnet are calculated, the length of time delay of a data packet is calculated according to the hop count of the nodes, and different transmission delays amongthe nodes are simulated. According to the data link simulation model, the delay property and connectivity of the data link can be accurately reflected, and relatively real system simulation can be realized after the data link simulation model is introduced into the system.

Description

technical field [0001] The invention belongs to the technical field of data links, and in particular relates to a data link simulation model. Background technique [0002] In application scenarios such as UAV formation flight, Internet of Things construction, and robot collaboration, the data link is a very important link and the link connecting various devices. From the perspective of the system, the introduction of the data link provides conditions for the communication between the modules, and provides more available information for each device. However, due to the connectivity and delay characteristics of the data link, the use of this part of the information is different from the use of the system's own information. Therefore, it is necessary to establish a data link mathematical model to analyze the characteristics of the entire networking system. [0003] There are two main types of existing data link models: [0004] One is the simulation model constructed by the d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L12/26
CPCH04L41/14H04L41/145H04L43/0852H04L43/0811
Inventor 侯冀川胡松李红春刘志峰
Owner BEIJING RES INST OF MECHANICAL & ELECTRICAL TECH
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