GB/T 40778.3-2022 in English
VALIDInternet of things—Web-oriented open service system implementation—Part 3: Thing discovery method
- Issued on:2022-10-14
- Implemented on:2023-05-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$156.00
《GB/T 40778.3-2022物联网 面向Web开放服务的系统实现 第3部分：物体发现方法》由TC28（全国信息技术标准化技术委员会）归口，TC28SC41（全国信息技术标准化技术委员会物联网分会）执行，主管部门为国家标准化管理委员会。
Introduction
Evolution of Standardization of Object Discovery Methods
The construction of Web service standardization in the field of Internet of Things began with the establishment of the reference architecture (GB/T40778.1). As the third part of this series of standards, this document completes the construction of a service closed loop based on the object description method (GB/T40778.2).
Core Architecture Technology Analysis
| System Components | Functional Modules | Key Technical Indicators |
|---|---|---|
| Discovered Party | Object Attribute Identification | SupportOID identifier (GB/T26231) and dynamic attribute combination |
| Discover requester | Multi-protocol adaptation | Support JSON/XML format conversion, request response delay <500ms |
| Object discovery center | Identifier resolution | Three-dimensional resolution accuracy ≥ 99.9%, support 300+ concurrent requests per second |
Key points of implementation
Identifier resolution system
- Capability identifier: Hash encoding system based on object functional characteristics
- Location identifier: GIS coordinate and logical area hierarchical encoding specification
- Name identifier: Follow the management rules of the OID tree structure
Security control strategy
Typical application scenarios
After implementing this specification in the smart city system:
1. The cross-domain device discovery time was shortened from 26s to 3.2s
2. The heterogeneous system service docking cycle was shortened by 70%
3. Unauthorized access caused by system vulnerabilities decreased by 84% year-on-year
Upgrade implementation suggestions
- Establish an object attribute identifier mapping library
- Deploy distributed discovery center nodes
- Configure a dynamic permission classification strategy
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