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SDN-based multi-modal data interaction system and method for intelligent production line

A data interaction and multi-modal technology, applied in the direction of digital transmission system, data exchange network, transmission system, etc., can solve the problems that affect the overall compatibility of the system, increase the system maintenance cost, prolong the development cycle, etc., to ensure reliable real-time transmission , Improve network congestion, accurate object-oriented and demand effects

Active Publication Date: 2020-12-22
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the current technologies are dedicated one-to-one protocol gateways. When converting between any two different protocols, a dedicated gateway is required, which is very inconvenient in the current complex intelligent production line heterogeneous network communication.
Moreover, it is necessary to write different gateway programs for different devices, and even need to add a private protocol in the gateway to enable the successful access of the device, which greatly affects the overall compatibility of the system
In addition, it is necessary to make corresponding hardware access ports according to the equipment, which not only prolongs the development cycle but also increases the maintenance cost of the system

Method used

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  • SDN-based multi-modal data interaction system and method for intelligent production line

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Embodiment 1

[0034] This embodiment provides an SDN-based multi-modal data interaction system for intelligent production lines. The system includes four layers: equipment layer, conversion layer, network layer, and server layer. The equipment layer includes terminals and data of intelligent production lines. collection node. The terminal equipment mainly involves three aspects: product, processing, and transportation. The product aspect includes raw material addition and finished product packaging; the processing aspect includes processing equipment such as robotic arms and lathes; the transportation includes the movement and status detection of the production line. Due to the different manufacturers of each device, the types of communication protocols used for underlying data transmission are different. At present, there are more: ModbusTCP, ModbusRTU, OPCUA, RFID, Zigbee, Wifi, etc. Firstly, the equipment in the production line is divided according to function and area, and some areas or...

Embodiment 2

[0040] This embodiment provides an SDN-based multimodal data interaction method for an intelligent production line, the method comprising the following steps:

[0041] The distributed sensor network is used to collect the data of the bottom equipment, the bottom equipment in the intelligent production line is divided according to the function and area, and a data collection node is set up in each sensor local area network to collect and forward the equipment operation information ;

[0042] Design an intelligent gateway that supports multi-communication protocol conversion to connect with the data acquisition node, and convert the information collected by the data acquisition node to the communication protocol to realize communication with the network layer and networking of various devices;

[0043] Build an SDN network architecture, configure the software of the edge intelligent gateway, so that it can perform data conversion and transmission between different communication ...

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Abstract

The invention discloses an SDN-based intelligent production line multi-modal data interaction system and method. The system includes a device layer, a conversion layer, a network layer and a server layer. The device layer is composed of bottom devices, sensors and data acquisition nodes. It is used to collect the operation information of the equipment and summarize the data; the conversion layer is composed of distributed intelligent gateways, which are responsible for the format conversion of data and the interaction with the network layer; the network layer is built with a software-defined SDN network, which is used for the dynamic conversion of the conversion layer conversion protocol Configuration and data transmission path optimization; the server layer stores different protocol conversion installation packages through the establishment of the database, and stores the collected data and accesses user services. Based on the SDN network, the system decouples the device control plane and the data plane, realizes flexible control of network traffic, and mixes wired and wireless networks, making the data collection network system more flexible and convenient, and more suitable for current Production line status.

Description

technical field [0001] The invention relates to the technical field of industrial automation control, in particular to an SDN-based multi-modal data interaction system and method for an intelligent production line. Background technique [0002] With the development of information technology, the traditional manufacturing industry is changing to the direction of intelligence. In the environment of intelligent manufacturing, information interaction and efficient and stable communication of data are the key and important basis for realizing the intelligentization, informatization, and automation of production lines. ; Provides a very important channel for data collection, uploading, and distribution of production lines. Device networking has become an inevitable trend of future technology development. At present, the relatively mature technologies mainly include bus communication and wireless communication. By deploying wireless transmission networks such as Wi-Fi, Zigbee, and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/24H04L12/851H04L12/865H04L29/08H04L47/6275
CPCH04L41/00H04L41/0226H04L41/044H04L41/06H04L41/147H04L47/24H04L47/6275H04L67/10
Inventor 万加富汪曦祥陈宝通杨俊
Owner SOUTH CHINA UNIV OF TECH
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