Journal of Textile Research ›› 2020, Vol. 41 ›› Issue (01): 165-173.doi: 10.13475/j.fzxb.20181206309

• Machinery & Accessories • Previous Articles     Next Articles

Research on knitting machine interconnection and interoperability structure based on industrial internet

WANG Songsong1,2, PENG Laihu1,2, DAI Ning1,2, SHEN Chunya1,2, HU Xudong1,2()   

  1. 1. Engineering Research Center of Modern Textile Machinery & Technology, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
    2. Key Laboratory of Modern Textile Machinery & Technology of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
  • Received:2018-12-28 Revised:2019-07-23 Online:2020-01-15 Published:2020-01-14
  • Contact: HU Xudong E-mail:xdhu@zstu.edu.cn

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Abstract:

In order to realize the interconnection and intercommunication of knitting machine from the bottom layer to the cloud, under the drive of the national intelligent manufacturing standard system, based on the network, data, security and other factors, the internet model of knitting machine industry was constructed, and the ubiquitous connection and logo of knitting machine was discussed. By analyzing the characteristics of OT+IT network, the network structure and bandwidth based on ″internet +″ are designed, and the future network is discussed. Combining the reliability of heavyweight communication protocol and the convenience of lightweight communication protocol, a special protocol for knitting machine interconnection is designed. The structure and semantics of the message are standardized. The communication guarantee and service quality assurance mechanism are established to make the message. Be sure to be reachable. The verification platform for the interconnection and intercommunication of the knitting machine industry was designed. The terms of the industrial internet interconnection network and communication protocol of knitting machines such as flat knitting machines, circular knitting machines and warp knitting machines are verified, and the verification, revision and re-verification processes are guaranteed.

Key words: knitting machine, intelligent manufacturing, interconnection and interoperability, industrial internet

CLC Number: 

  • TS18

Fig.1

Industrial internet model of knitting machine"

Fig.2

OT+IT knitting machine network structure"

Fig.3

Knitting machine network structure based on ″internet+″"

Fig.4

Future network structure of knitting machine"

Fig.5

Design mechanism of interconnection protocol for knitting machine"

Tab.1

Message structure"

报文结构 数据类型 含义
固定报头 UInt16 通信序号
DateTime 时间戳
Guid 请求方ID
Guid 应答方ID
UInt32 报文内容总长度
功能代码 1Byte 功能类型代码
1Byte 子功能代码
参数(代码) 可变长度 参数(代码)

Tab 2

Data type of knitting machine"

序号 名称 字节数 描述
1 Boolean 1 2个状态的逻辑值(true或false)
2 SByte 1 -128和127间的整数值
3 Byte 1 0和256间的整数值
4 Int16 2 -32 768和32 767间的整数值
5 UInt16 2 0和65 535间的整数值
6 Int32 4 -2 147 483 648和2 147 483 647间的整数值
7 UInt32 4 0和4 294 967 295间的整数值
8 Float 4 IEEE单精度(32位)浮点值
9 Double 8 IEEE双精度(64位)浮点值
10 String 一系列Unicode字符
11 DateTime 8 时间实例
12 Guid 16 16字节的值,可被用作全球唯一标识符
13 XmlElement — XML元素

Fig.6

Semantic function structure of knitted machine message"

Fig.7

Parameter structure of knitted machine message"

Tab.3

Communication response parameter format"

序号 请求方-参数代码 应答方-参数(代码)值
1 参数代码1、参数代码2、…、参数代码N 参数值1、参数值2、…、参数值N
2 参数代码1、参数值1,参数代码2、参数值2,…,参数代码N、参数值N 参数代码1,参数值1,参数代码2、参数值2,…,参数代码N、参数值N
3 参数块代码 按参数块序列的参数值1、参数值2、…、参数值N

Fig.8

Knitting machine interoperability and interoperability verification laboratory layout"

Fig.9

Verification process for interconnection and interoperability of knitting machine"

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