Unlock instant, AI-driven research and patent intelligence for your innovation.

A Synchronization Method for Task Partitioning and Communication Scheduling in Time-triggered Ethernet

A time-triggered, network technology, applied in synchronization devices, multiplexing communication, data exchange networks, etc., can solve the problem that time-triggered Ethernet equipment cannot provide time-determined data transmission services, and cannot strictly guarantee data transmission jitter and end-point. end-to-end delay and other issues to reduce jitter and end-to-end delay and improve accuracy

Active Publication Date: 2018-01-12
XIAN AVIATION COMPUTING TECH RES INST OF AVIATION IND CORP OF CHINA
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the transmission and scheduling mechanism of real-time business messages in traditional Ethernet cannot strictly guarantee the jitter and end-to-end delay of data transmission; Provide time-determined data transmission services
Because pure optimization at the network or operating system level cannot provide deterministic communication support for highly reliable and strong real-time airborne systems

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A Synchronization Method for Task Partitioning and Communication Scheduling in Time-triggered Ethernet
  • A Synchronization Method for Task Partitioning and Communication Scheduling in Time-triggered Ethernet
  • A Synchronization Method for Task Partitioning and Communication Scheduling in Time-triggered Ethernet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] The invention provides a method for synchronizing task partitions and communication scheduling in a time-triggered Ethernet network, which is used to improve the accuracy of the time-triggered Ethernet network and further reduce end-to-end time delay. The communication scheduling of the TTE end system is precisely implemented according to the cluster cycle and the integrated cycle clock on the TTE end system, so the synchronization of the task partition and the communication scheduling is equivalent to the synchronization of the task partition and the cluster cycle of the TTE end system.

[0033] In order to realize the minimum delay time of data transmission from the TTE end system to the respective application partitions of the ARINC653 partition system, the present invention synchronizes and aligns the Major Time Frame (MTF) of the partition system with the TTE network cluster cycle clock. That is, at the beginning of each MTF cycle, the MTF of the specific task parti...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the technical field of computer application, and relates to a synchronization method for task partitioning and communication scheduling in a time trigger network. According to the synchronization method for task partitioning and communication scheduling in the time trigger network, ARINC653 system task partitioning is enabled to be maintained to be closely synchronized with tolerant system level cycle time of a TTE network so that a unified whole system time standard is established between partitions of different modules in a distributed avionic system, a time trigger message is ensured to be timely scheduled and transmitted, jittering and end-to-end time delay of transmission of the time trigger message can be effectively reduced, and thus communication support is provided for a system with high reliability and high real-time performance.

Description

technical field [0001] The invention belongs to the technical field of computer applications, and relates to a method for synchronizing task partition and communication scheduling in a time-triggered Ethernet network. Background technique [0002] In a highly integrated airborne IMA system, various application services such as avionics, flight control, inertial navigation, etc. are mapped to different computing resources of multiple nodes, and the nodes are interconnected through the network, and each node needs to run Multiple applications with different security and critical levels. [0003] The ARINC653 specification proposes an application program interface and a system service set (TheApplication / Executive Interface, APEX) in response to this requirement, which partitions system resources in time and space, thereby isolating application services of different safety-critical levels, and improving IMA system software Portability, high reliability and security of the syst...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04J3/06H04L7/00H04L12/863
CPCH04J3/0635H04L7/0033H04L47/50
Inventor 于峰邱征刘智武魏雪菲朱佳王建宇
Owner XIAN AVIATION COMPUTING TECH RES INST OF AVIATION IND CORP OF CHINA