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A real-time data transmission method and node equipment

A technology of real-time data and transmission methods, applied in digital transmission systems, transmission systems, data exchange networks, etc., can solve problems such as waste of network bandwidth resources

Active Publication Date: 2016-03-30
KYLAND TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Embodiments of the present invention provide a real-time data transmission method and node equipment to solve the problem of wasting network bandwidth resources in the prior art when data transmission is based on the TTE mechanism

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  • A real-time data transmission method and node equipment
  • A real-time data transmission method and node equipment
  • A real-time data transmission method and node equipment

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Experimental program
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Embodiment Construction

[0027] In order to effectively improve the utilization rate of network bandwidth, the present invention provides a real-time data transmission method and node equipment.

[0028] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0029] figure 2 A schematic diagram of the real-time data transmission process provided for a specific embodiment of the present invention, the process includes the following steps:

[0030] Step 201: the master node receives message sending requests sent by each node.

[0031] Specifically, according to the network topology in this embodiment of the present invention, there is a master (MASTER) node in a local area network or multiple local area networks, and the master (MASTER) node can be generated by election or determined at the beginning of configuration. After the MASTER node is determined, when each node in its local area needs to send data, it needs to request the master node to allocat...

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Abstract

The invention discloses a real-time data transmission method and node equipment, which solves the problem of waste of network bandwidth resources caused by existing TTE-based data transmission. When the master node receives the message transmission request sent by each node, the method , determine the physical link for each node to send the message, divide the nodes with different physical links into a group, each node is only in one group, and according to the time slot assigned to each node in each group Length, determine the time slot of each group, and notify each node to perform data transmission according to the time slot assigned to its group. Since the nodes with different physical links are divided into one group in the present invention, the allocated time slots of the group are the same, and each node in the group simultaneously transmits data according to the allocated time slots, thereby effectively saving The data transmission time in this networking effectively improves the utilization rate of bandwidth resources.

Description

technical field [0001] The invention relates to the technical field of real-time data transmission, in particular to a real-time data transmission method and node equipment. Background technique [0002] In the network control system, according to the different message transmission methods, it can be divided into event-triggered method and time-triggered method. The event trigger mode is mainly suitable for the transmission of non-periodic messages such as alarms and management; the time trigger mode is mainly suitable for the transmission of hard real-time periodic messages such as sensor data and control variables. [0003] The time-triggered (Time-Triggered, TT) mechanism refers to dividing the time domain into a large number of discrete time intervals (called time slices or time windows), and the transmission of messages is allocated within a certain time slice through the synchronization mechanism. Therefore, through Time-triggered instead of event-triggered, the commu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/853H04L12/841H04L47/2416
CPCH04L12/4015H04J3/00H04L12/4035H04J3/1682
Inventor 马化一薛百华丁杰
Owner KYLAND TECH CO LTD