Intelligent medical data storage method based on multi-level blockchain system architecture

A technology of medical data and system architecture, applied in the direction of structured data retrieval, database indexing, digital data protection, etc., can solve the problem that cannot meet the needs of blockchain system transaction processing capabilities, security supervision and privacy protection, operating efficiency and scalability Not very high, limited data storage capacity and other issues, to achieve the effect of improving efficiency and scalability, protecting personal identity privacy and data privacy, and achieving efficient management

Active Publication Date: 2020-01-24
NANJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

At present, many in-depth researches have been done on the application of blockchain in the medical industry at home and abroad. For example, the MIT Media Lab proposed a MedRec framework based on blockchain, which realizes medical data across medical organizations. The decentralized integration of MedRec and the protection of patient privacy data through smart contracts, but MedRec uses the PoW consensus mechanism, which requires too much computing power to maintain the consistency of the blockchain. Based on this, Xue Tengfei and others use the improved The DPoS consensus mechanism is used to reduce the computing power of the nodes, and a med

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  • Intelligent medical data storage method based on multi-level blockchain system architecture
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  • Intelligent medical data storage method based on multi-level blockchain system architecture

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[0047] The technical method of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0048] The present invention involves the following technical terms and constraints.

[0049] Fabric: Fabric is the core project of Hyperledger. It is essentially a distributed shared ledger. It adopts a modular architecture in design. The advantage of the modular architecture is that its components can be flexibly configured according to needs, and can be plugged and used. Fabric Including five core modules:

[0050] (1) The peer node module, including the master node, endorsement node, submission node, and sorting node, is responsible for storing block data, operating and maintaining the chain code, and providing external service interfaces, etc.;

[0051] (2) The cryptogen module is responsible for generating certificate files related to organizational structure and accounts;

[0052] (3) The configtxgen module is responsible for ...

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Abstract

The invention discloses an intelligent medical data storage method based on a multi-level blockchain system architecture. According to the method, an existing single-chain or double-layer blockchain system design is abandoned, a multi-layer blockchain system architecture is provided based on a Hyperledger Fabric platform to solve the storage problem of medical data, efficient management of large-scale medical data is achieved, and the efficiency and expandability of the system are greatly improved. Meanwhile, a dual-key encryption system combining public key encryption and symmetric encryptionis adopted, storage and sharing of medical data are achieved under the condition that privacy of the patient is protected, and great convenience is provided for medical institutions, patients and scientific research institutions.

Description

technical field [0001] The present invention proposes a smart medical data storage method based on a multi-level block chain architecture, which belongs to the field of block chain technology, and particularly relates to technical fields such as data security, trusted storage, and data sharing. Background technique [0002] In the field of medical data, the efficient storage and safe sharing of medical data has always been a difficulty. Patients, doctors, and scientific researchers all have strict restrictions on accessing and sharing medical data. Although the widespread use of centralized electronic medical records (EMR) has brought great convenience to the medical field, with the development of society, centralized electronic medical records have been unable to meet the needs of large-scale medical data storage and sharing. Demand, because the patient's medical data is difficult to interact, poor in operability, difficult to coordinate management, and the shared medical d...

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Application Information

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IPC IPC(8): G06F16/27G06F16/22G06F16/29G06F21/62G06F21/60
CPCG06F16/27G06F16/2246G06F16/29G06F21/6245G06F21/602
Inventor 黄海平朱鹏肖甫沙乐天孙翔陈龙马子洋戴铭俞
Owner NANJING UNIV OF POSTS & TELECOMM
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