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Real-time communication method, device and system based on industrial internet

A technology of industrial Internet and real-time communication, applied in the field of real-time communication methods, devices and systems, can solve the problems of heavy network burden, uncertainty of data transmission time, inability to meet the requirements of certainty of data transmission and transmission time, etc. Deterministic, guaranteed real-time effect

Active Publication Date: 2019-03-19
KYLAND TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The embodiment of the present invention provides a real-time communication method, device and system based on the industrial Internet, which is used to solve the current problem of using the Ethernet communication technology and the need to transform the two-wire network into a Category 5 twisted-pair Ethernet. Moreover, in the prior art, the modified Ethernet adopts CSMA / CD technology to have the uncertainty of data transmission time. When the network load is heavy, it cannot meet the requirements of industrial control for the deterministic sending time of data transmission.

Method used

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  • Real-time communication method, device and system based on industrial internet
  • Real-time communication method, device and system based on industrial internet
  • Real-time communication method, device and system based on industrial internet

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Embodiment 1

[0045] Such as figure 1 As shown, it is a schematic flowchart of the industrial Internet-based real-time communication method described in Embodiment 1 of the present invention. The data transmission method is applicable to a two-wire data transmission network, and each node in the two-wire data transmission network Establishing a network connection based on an IP address may include the following steps:

[0046] Step 101: the master node receives a time slice acquisition request sent by the slave node, and the time slice acquisition request includes the data volume of the data to be transmitted.

[0047] Step 102: According to the data amount of the data to be transmitted and the unallocated time slot, allocate a time slot for the data to be transmitted, and obtain time slot allocation information.

[0048] Wherein, in one embodiment, the number of time slices that can be transmitted is limited, and how many time slices to allocate can be determined according to the amount o...

Embodiment 2

[0060] Such as figure 2 As shown, it is a schematic flow chart of the industrial control data transmission method described in Embodiment 2 of the present invention. The data transmission method is suitable for a two-wire data transmission network, and each node in the two-wire data transmission network is based on IP Address to establish a network connection may include the following steps:

[0061] Step 201: The slave node sends the generated time slice acquisition request to the master node; the time slice acquisition request includes the data volume of the data to be transmitted.

[0062] Step 202: Receive the time slice allocation information sent by the master node; the time slice allocation information is that after the master node receives the time slice acquisition request, according to the data volume of the data to be transmitted and the unallocated time slice It is obtained after the time slice is allocated for the data to be transmitted.

[0063] Step 203: Acco...

Embodiment 3

[0088] Based on the same inventive concept, an embodiment of the present invention also provides a real-time communication device based on the Industrial Internet, which is suitable for a two-wire data transmission network, and each node in the two-wire data transmission network establishes a network connection according to an IP address such as image 3 Shown is a schematic structural diagram of the device, including:

[0089] A time slice acquisition request receiving module 301, configured to receive a time slice acquisition request sent from a node, wherein the time slice acquisition request includes the amount of data to be transmitted;

[0090] A time slice allocation module 302, configured to allocate a time slice for the data to be transmitted according to the data volume of the data to be transmitted and unallocated time slices, and obtain time slice allocation information;

[0091] Time slice allocation information sending module 303, configured to send the time slic...

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Abstract

The invention discloses a real-time communication method, device and system based on an industrial internet. The scheme is applicable to a two-wire system data transmission network. Each node in the two-wire system data transmission network establishes network connection according to an IP address. The method comprises the steps that a slave node sends a message to a destination node according to time slice allocation information obtained from a master node, wherein the message is generated in advance by taking the IP of the slave node as a source IP and taking the IP of the destination node as a destination IP, to-be-transmitted data is carried in the message, the destination node identifies the identity of the slave node according to the source IP, and the master node, the slave node and the destination node communicate through adoption of a carrier communication transmission technology or a baseband transmission technology. In the scheme, the network is unnecessarily changed into the 5-class twisted-pair network, moreover, the slave node identifies the identity of a device according to the time slice transmission data and the IP address, and the data transmission time certainty can be ensured.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to an industrial Internet-based real-time communication method, device and system. Background technique [0002] In the field of industrial control, with the development of Ethernet communication technology, it gradually replaces the traditional industrial field bus technology to transmit industrial control data. [0003] In the existing industrial control field, CSMA / CD (Carrier Sense Multiple Access with Collision Detection, Carrier Sense Multiple Access with Collision Detection) is mostly used to transmit data. Specifically, this technology requires each node to detect whether the channel is free before sending data, and if it is free, send data immediately; otherwise, wait for a period of time until the channel is free before sending data. If two or more nodes make sending requests at the same time after the last piece of information is sent, it will be judged as...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/413
CPCH04L12/413
Inventor 张洪雁张俭锋闫志伟韦锦驹
Owner KYLAND TECH CO LTD
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