YD/T 4642-2023
Blockchain-based smart city key indicator data management architecture (English Version)
- Standard No.
- YD/T 4642-2023
- Language
- Chinese, Available in English version
- Release Date
- 2023
- Published By
- Professional Standard - Post and Telecommunication CN / YD
- Latest
- YD/T 4642-2023
- Introduction
Core Analysis of Blockchain Smart City Data Management Architecture
This standard revision adopts the ITU-T Y.4907 international standard, and innovatively adds 7 key technical improvements such as the definition of the blockchain platform and the KPI encryption process diagram. Its architecture design follows the three-layer system of the Internet of Things, and realizes the three core characteristics of tamper-proof, traceable, and secure sharing of urban data through blockchain technology.
Technical Analysis of BKDMS Reference Architecture
Architecture Level Core Module Key Technology Device Perception Layer KPI Processing Module Data Collection/Encryption/Block Encapsulation Network Layer Communication Relay P2P Transmission/TLS Secure Channel Service Support Layer KPI Management Module Smart Contract/Consensus Mechanism Typical application: environmental data traceability
A smart city deploys an air quality sensor network to standardize environmental KPI data such as PM2.5 and upload it to the blockchain. The blockchain platform records metadata such as data collection time and device ID to achieve data authenticity audit, and the environmental protection department can trace back historical data from any monitoring point.
Standardized design of KPI data structure
The unified data structure contains 6 major fields:
- Country code (ISO 3166 standard)
- City code (GB/T 2260)
- Device IPv6 address
- UTC timestamp
- Indicator value (refer to ITU-T Y.4903)
- Extended data area
Encrypted transmission process
Adopt an asymmetric encryption system:
1. The smart city platform sends the public key to the edge computing node
2. The node uses the public key to encrypt the KPI data + private key signature summary
3. The blockchain platform verifies the integrity of the data packet and then uploads it to the chain
Implementation suggestions
- Deployment phase: Prioritize pilot projects in key areas such as transportation and environmental protection
- Technology selection: Recommend alliance chain architecture (such as Hyperledger Fabric)
- Security strategy: Establish a key rotation mechanism, with a recommended period of ≤90 days
YD/T 4642-2023 history
- 2023 YD/T 4642-2023 Blockchain-based smart city key indicator data management architecture
