Qos model construction and Qos strategy scheme operation performance prediction method based on an RTI-DDS

A technology of RTI-DDS and construction method, which is applied in the field of QoS processing based on RTI-DDS, can solve the problems of little research, complex mechanism and large number, and achieve the effect of low complexity, improved efficiency and low cost

Active Publication Date: 2019-06-18
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

[0004] Although DDS has been developed for a long time, and there are many communication middleware based on DDS mechanism, there are not many related researches based on DDS mechanism itself, including DDS discovery mechanism and Qos (Quality of Service) strategy. Quality of service, etc., the Qos policy model is rarely mentioned, but the Qos policy plays a vital role in the quality of communication, but the Qos policy provide

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  • Qos model construction and Qos strategy scheme operation performance prediction method based on an RTI-DDS
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  • Qos model construction and Qos strategy scheme operation performance prediction method based on an RTI-DDS

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[0044] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the implementation methods and accompanying drawings.

[0045] In order to save developers' time and energy and improve efficiency in the development of DDS middleware, a Qos policy model based on decision tree method is proposed, and the Qos guarantee for the developed DDS middleware is realized through this Qos policy model.

[0046] The process of building the Qos strategy model of the present invention comprises: sample processing, construction of the Qos strategy model and model optimization processing, and its specific implementation process is as follows:

[0047] S1: Sample processing:

[0048] S101: Extracting Qos policy feature clusters.

[0049] In this embodiment, the Qos policy features include the following six categories:

[0050] 1. Time (f 1 ). Strategies that numericall...

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Abstract

The invention discloses a Qos model construction and Qos strategy scheme operation performance prediction method based on an RTI-DDS. According to the entity classification in the RTI-DDS design, thepresent invention serves as a node of the first dimension of the decision tree, and each node includes a Qos policy corresponding to each part. Within the node, the second dimension is included, and the setting problem of the Qos policy is divided into two parts: the numerical index and the switch configuration, which are respectively transformed into a linear model with time complexity and spatial complexity as an index as a node of the second dimension; And a nonlinear model based on a multivariate decision tree structure, this is the second node of the second dimension. The user can providethe characteristics and indicators of the transmitted data, and derive the appropriate model parameters and Qos strategy from the decision tree node. The model has low complexity, short calculation time and low cost.

Description

technical field [0001] The invention belongs to the technical field of software services, and in particular relates to Qos processing based on RTI-DDS. Background technique [0002] RTI-DDS is a commercial network middleware DDS (Data Distribution Service, Data Distribution Service) released by RTI (Real-Time Innovations). [0003] Ethernet is the most common network nowadays. It is at the bottom of the field bus. Actively adopting Ethernet technology is the development trend of the field bus at present. At the same time, the TCP / IP protocol has become an internationally commonly used network language with the help of the application of the Internet. At present, in the distributed network system composed of Ethernet and TCP / IP network technology, the real-time performance of transmission has been improved with the development of Fast Ethernet and switched Ethernet technology, but the improvement of the real-time performance of the underlying network is only It laid the foun...

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Application Information

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IPC IPC(8): H04L29/08
Inventor 荆华田诗奇邱晓晗何宇
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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