IoT Data Management Through Selective Blockchain Recording
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Solution Overview
Problem
Managing large volumes of IoT data using blockchain technology is challenging due to storage capacity limitations and delays in real-time data utilization, especially when linking devices, leading to potential data tampering and operational failures.
Innovation Solution
A data management method utilizing a first authentication server with a distributed ledger to manage only necessary data by generating blocks for data indicated in an information type list related to a predetermined contract, ensuring efficient and secure data utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the entire IoT data is managed using blockchains, then data tampering is prevented, but storage capacity is insufficient due to the enormous amount of data
Solution Approach 1:
The patent segments IoT data into two categories: important data that requires tampering prevention and other data that does not. Only the important data is recorded on the blockchain, while other data is stored in conventional databases. This segmentation allows the system to maintain data security for critical information without being constrained by blockchain storage limitations.
Solution Approach 2:
The patent applies different storage qualities to different types of data. Critical data receives the high-security, tamper-proof quality of blockchain storage, while non-critical data uses the lower-cost, higher-capacity conventional database storage. This local quality differentiation optimizes both security and storage efficiency.
2Reliability
If block generation is performed for real-time data utilization, then data security is ensured, but processing delay occurs due to the time required for block generation
Solution Approach 1:
The patent segments data processing into two paths: urgent important data that requires blockchain verification and other data that can be processed conventionally. This segmentation allows real-time processing of time-sensitive operations while maintaining security for critical data through blockchain.
Solution Approach 2:
The patent applies blockchain verification partially, only to the extent necessary for data security. Not all IoT data undergoes the time-consuming block generation process, only those data items that require tampering prevention. This partial application reduces overall processing delay while maintaining necessary security.
3Reliability
If all transaction data is recorded in the distributed ledger, then data integrity is maintained, but system complexity increases due to the enormous amount of data
Solution Approach 1:
The patent segments the data management system into a blockchain component for integrity-critical data and a conventional database component for other data. This segmentation simplifies the overall system architecture by allowing each component to be optimized independently, reducing the complexity that would arise from managing all data uniformly through blockchain.
Data Source
AI summary
A data management method performed by a first authentication server included in a plurality of authentication servers each having a distributed ledger in a data management system including a device and the plurality of authentication servers includes: obtaining first transaction data generated by the device and including device data obtained or generated by the device; and generating a block including the first transaction data and recording the generated block in the distributed ledger, when the device data included in the first transaction data is first data indicated in an information type list which is a data list indicating data that is subject to recording in the distributed ledger and related to a predetermined contract.