Supercharge Your Innovation With Domain-Expert AI Agents!

Message sending and receiving method in gjb289a bus module supporting priority

A priority and message technology, applied in bus network, digital transmission system, data exchange network, etc., can solve the problem of no priority distinction in message sending and receiving, affecting the effect of message sending and receiving, etc.

Active Publication Date: 2020-06-16
CHENGDU CHENGDIAN GUANGXIN TECH
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The bus network GJB289A (MIL-STD-1553B) bus in the field of avionics has been widely used in the field of avionics for many years. There is no priority distinction for sending and receiving, which affects the effect of sending and receiving messages

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
  • Message sending and receiving method in gjb289a bus module supporting priority
  • Message sending and receiving method in gjb289a bus module supporting priority
  • Message sending and receiving method in gjb289a bus module supporting priority

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] In order to facilitate the description, explain the English abbreviations in the text:

[0021] MsgID: message ID;

[0022] ICD: interface control file;

[0023] MBI: bus interface module;

[0024] RT: remote terminal;

[0025] BC: bus controller;

[0026] BM: Bus monitor.

[0027] A GJB289A bus module that supports priority is composed of two parts: message sending and message receiving.

[0028] 1 Distinguish the sending buffer management according to the message priority

[0029] Such as figure 1 As shown, when MBI is used as a BC, MBI applies for three types of buffers, emergency message buffer, asynchronous message buffer, and ordinary message buffer according to different message sending priorities.

[0030] The emergency message buffer stores emergency messages. When the application software sends an emergency message, the message is stored in the emergency message buffer. The priority of the emergency message is the highest. When the emergency message buffer is not empty, the ...

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 provides a method for sending and receiving messages in a priority-supporting GJB289A bus module. When the bus interface module acts as a BC, the bus interface module independently creates a cache for high-priority messages to ensure that the high-priority messages are sent first. The reception adopts the form of the second-level cache, and the form of the first-level cache adopts the form of receiving a large queue, which ensures the timing of message reception. The second-level cache adopts the pointer method, which not only ensures that the messages are classified according to different priorities, but also ensures that the message cache does not occupy too much memory space; at the same time, different priority messages adopt different receiving methods, and high-priority urgent messages Interrupt reception is adopted, and periodical messages of normal priority are received by inquiry mechanism. When users need to retrieve messages according to the timing of receiving messages, they can choose to retrieve messages from the first-level cache. When users need to extract messages according to their priority, they can choose to extract messages from the second-level cache.

Description

Technical field [0001] The present invention relates to bus technology, and particularly relates to message sending and receiving technology in bus modules. Background technique [0002] The bus network GJB289A (MIL-STD-1553B) in the field of avionics has been widely used in the field of avionics for many years. However, in the airborne avionics network and avionics comprehensive laboratory, the existing GJB289A bus module There is no priority distinction between sending and receiving, which affects the effect of sending and receiving messages. Summary of the invention [0003] The technical problem to be solved by the present invention is to provide a method that can support the priority of messages to be received and sent in the GJB289A bus module. [0004] The technical solution adopted by the present invention to solve the above-mentioned technical problems is the message receiving and sending method in the GJB289A bus module supporting priority: [0005] 1) Sending step: The bu...

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): H04L12/40H04L12/865H04L12/863H04L47/6275
CPCH04L12/40143H04L47/6215H04L47/6275H04L2012/4028
Inventor 高翔解军邱昆
Owner CHENGDU CHENGDIAN GUANGXIN TECH
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com