GB/T 40778.2-2021 English PDF

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GB/T 40778.2-2021: Internet of things - Web-oriented open service system implementation - Part 2: Thing description method
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Basic data

Standard ID: GB/T 40778.2-2021 (GB/T40778.2-2021)
Description (Translated English): Internet of things - Web-oriented open service system implementation - Part 2: Thing description method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: L79
Word Count Estimation: 25,272
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 40778.2-2021: Internet of things - Web-oriented open service system implementation - Part 2: Thing description method

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Internet of things - Web-oriented open service system implementation - Part 2.Thing description method ICS 35.110 CCSL79 National Standards of People's Republic of China The realization of the system of the Internet of things facing web open services Part 2.Object description method Released on 2021-10-11 2022-05-01 implementation State Administration for Market Regulation Issued by the National Standardization Management Committee

Table of contents

Foreword Ⅲ Introduction Ⅳ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 Abbreviations 1 5 Object description model 2 6 Object description metadata 3 Appendix A (informative) UML symbol description 8 Appendix B (informative) Examples of object description methods 9 B.1 Examples of XML description methods 9 B.2 JSON description method example 13 Reference 20

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" Drafting. This document is the second part of GB/T 40778 "Implementation of the Internet of Things System for Open Services on the Web". GB/T 40778 has The following sections were released. ---Part 1.Reference Architecture; ---Part 2.Object description method. Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying patents. This document was proposed and managed by the National Information Technology Standardization Technical Committee (SAC/TC28). Drafting organizations of this document. China Electronics Technology Group Corporation Information Science Research Institute, China Electronics Standardization Institute, Wuxi IoT Network Industry Research Institute, Shenzhen Saixi Information Technology Co., Ltd., Zhengzhou University, Foxconn Industrial Internet Co., Ltd., Nankai University, Beijing Jingdong Earth Technology Co., Ltd., Wuxi Internet of Things Innovation Center Co., Ltd. The main drafters of this document. Wang Fan, Li Mengliang, Yang Hong, Gao Huilin, Han Li, Guo Xiong, Zhang Chi, Zhao Xiangyang, Ma Chao, Li Jianhui, Zhang Xueqin, Wang Xiaochun, Liu Peiyun, Chen Enqing, Sun Wei, Li Ran, Liu Yang, Yan Jianqing, Jiang Guangsong, Lei Gen, Han Shihao, Dong Zixuan, Li Tao, Lu Ye, Cheng Yuan, Zhuang Baosen and Dong Jielian.

Introduction

In order to solve the problems of information fragmentation and chimney development in the development of the Internet of Things, it is necessary to establish Set relevant national standards to provide norms and guidance for improving the collaboration function between IoT application systems and accelerating the integration of the entire industrial chain of the Internet of Things. This document gives a set of system IoT object description methods oriented to Web development services, unifies the description of heterogeneous IoT objects, and reduces Low development cost of heterogeneous Internet of Things system, improve the interaction and interoperability of objects between systems. The plan of GB/T 40778 "Internet of Things System Implementation for Web Open Services" consists of two parts. ---Part 1.Reference architecture. The purpose is to provide a set of Internet of Things system architecture oriented to Web open services. ---Part 2.Object description method. The purpose is to unify the description of objects between heterogeneous Internet of Things systems oriented to Web open services. The realization of the system of the Internet of things facing web open services Part 2.Object description method

1 Scope

This document specifies the object description model and object description metadata requirements of the Internet of Things system for Web open services. This document is applicable to the design and development of the Internet of Things system oriented to open Web services, and provides technical support for Internet of Things application services.

2 Normative references

The content of the following documents constitutes an indispensable clause of this document through normative references in the text. Among them, dated quotations Only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to This document. GB/T 2260 Administrative division code of the People's Republic of China GB/T 2659 Code for names of countries and regions in the world GB/T 7408 Data element and exchange format information exchange date and time representation GB/T 28174 (all parts) Unified Modeling Language (UML) GB/T 40778.1-2021 The system implementation of the Internet of Things for Web open services-Part 1.Reference architecture

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Thingsdescription The virtual objects generated by devices and data connected to the Internet of Things are represented in a unified and standardized format. 3.2 Metadata Data describing the object data of the Internet of Things. 3.3 Metadataelement The basic unit of metadata. [Source. GB/T 19710-2005, 4.6] 3.4 Metadataentity A set of metadata elements that describe the same characteristics of the data. [Source. GB/T 19710-2005, 4.7]

4 Abbreviations

The following abbreviations apply to this document. ......

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