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Large-scale and high-concurrency deterministic network system

A network system and deterministic technology, applied in transmission systems, digital transmission systems, data exchange networks, etc., can solve problems such as low concurrency and small node scale, and achieve good robustness, large network scale, and high real-time performance Effect

Active Publication Date: 2018-11-20
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a deterministic network with the characteristics of high reliability, high real-time performance, good fault tolerance, high network concurrency and large network scale for the defects of small node scale and low concurrency in deterministic networks

Method used

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  • Large-scale and high-concurrency deterministic network system
  • Large-scale and high-concurrency deterministic network system
  • Large-scale and high-concurrency deterministic network system

Examples

Experimental program
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Embodiment 1

[0040] As one of the most basic implementations of the present invention, this embodiment discloses a large-scale, highly concurrent deterministic network system, such as figure 1 As shown, it includes network redundancy mechanism, system partition strategy, synchronous clock control mechanism and transmission scheduling strategy; network redundancy mechanism includes fault timeout monitoring, transmission rate control and multi-channel network redundancy; system partition strategy is managed by security labels, System security partition and security middleware relay; synchronous clock control mechanism is composed of timing maintenance algorithm and centralized algorithm; transmission scheduling strategy is composed of dynamic priority generation and time scheduling matrix; compared with AS6802, the present invention has designed traffic isolation function , which improves the concurrency and security of the network; the scheduling optimization strategy based on the time sched...

Embodiment 2

[0042] refer to figure 1 , a large-scale, highly concurrent deterministic network system such as figure 1 As shown, it includes network redundancy mechanism, system partition strategy, synchronous clock control mechanism and transmission scheduling strategy.

[0043] Network redundancy mechanism: In some safety-critical application systems, due to the lack of redundancy mechanism, once some nodes fail, the communication of the entire system will be interrupted, which will bring unpredictable consequences to the deterministic network. The remaining mechanism can ensure that the application system can communicate normally and ensure a certain degree of robustness when some nodes fail.

[0044] The network redundancy mechanism adopts the following three methods:

[0045] 1) Using the timeout monitoring method, set a fault timeout monitoring clock in the system. Once the monitoring clock times out, use the exceeded time as the judgment standard to determine the fault model that ...

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Abstract

The invention discloses a large-scale and high-concurrency deterministic network system, and belongs to the technical field of network communication systems. The large-scale and high-concurrency deterministic network system comprises a network redundancy system, a system partition policy system, a synchronous clock control system and a transmission scheduling policy system; the network redundancysystem ensures the network reliability through fault monitoring and rate control; the system partition policy system is used for performing isolation control of service traffic and improving the scaleand concurrency of the network; the synchronous clock control system provides a clock reference for the determinacy of the network for ensuring the synchronization of a local clock of a global network device; and the transmission scheduling policy system generates a scheduling optimization policy through priority configuration for rationally utilizing network bandwidth resources, improving the message concurrency and expanding the network scale at the same time.

Description

technical field [0001] The invention belongs to the technical field of network communication systems, and in particular relates to a large-scale, highly concurrent deterministic network system. Background technique [0002] Deterministic networks are used in fields with specific applications such as industrial control, aviation airborne networks, and military communications. Through deterministic network topology and protocol configuration, data transmission with definite flow direction is completed to achieve the purpose of data and resource interconnection. However, with the maturity of the network technology used, the scale of network data, and the continuous improvement of the comprehensiveness of deterministic networks, the demand for information transmission is further widened and diversified. For example, the new application functions of large aircraft (such as large-screen display, digital map, air-ground data link, etc.) put forward higher requirements for the abili...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L12/26H04J3/06H04L12/851H04L12/865H04L29/06H04L47/6275
CPCH04J3/0638H04L41/0663H04L41/0836H04L41/0896H04L43/0894H04L43/16H04L47/24H04L47/6275H04L63/20
Inventor 李文江刘强赵利霞汪文勇
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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