Internet of Things data sharing system and method based on block chain

A technology of data sharing and blockchain, applied in the field of file security and blockchain, which can solve problems such as insufficient system scalability, poor data privacy protection ability, and weak interaction ability of data sharing platform

Active Publication Date: 2020-11-27
BEIJING UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of this invention is to propose a blockchain technology-based Internet of Things data sharing system and method to solve the problem of weak i

Method used

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  • Internet of Things data sharing system and method based on block chain
  • Internet of Things data sharing system and method based on block chain
  • Internet of Things data sharing system and method based on block chain

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Experimental program
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Embodiment Construction

[0030] In order to make the above-mentioned technical solutions and functions of the present invention easier to understand, the present invention will be further described below in conjunction with accompanying drawings 1-5:

[0031] The whole system adopts a three-tier functional architecture for data access, data processing and data application as a whole. figure 1 As shown, and based on the function of the data service layer, a layered and split-chain network architecture is built to realize the local storage and global sharing of data. figure 2 shown.

[0032] On the basis of the above data sharing system, the functions of user registration, data access and storage, data sharing and acquisition, data privacy and analysis are realized by using the smart contract method. The specific content is as follows:

[0033] 1. Smart contract design such as image 3 As shown, the functions of each part include:

[0034] DMMC is used to record the digital identity (DU-ID), the co...

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PUM

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Abstract

The invention discloses an Internet of Things data sharing system and method based on a block chain. A set of trust mechanism is established by jointly maintaining an account book through a pluralityof nodes by adopting a block chain technology; therefore, the account book data has the characteristics of openness, transparency, traceability, no tampering and the like, automatic and intelligent data processing can be realized by utilizing an intelligent contract technology formed by automatic scripts, and meanwhile, the problem of block chain storage limitation can be well solved by combiningan IPFS (Internet Protocol File System). And the requirement of data sharing is highly met. A layered and chained network architecture is adopted in the system, a local network is locally constructedin each member mechanism to realize local storage of data, and a global network is constructed among the member mechanisms to realize data sharing among the members, so that the security of data sharing and the expandability of the system are effectively improved.

Description

technical field [0001] The present invention belongs to the field of blockchain technology, the field of data sharing, the field of the Internet of Things, the field of file security, and the like. Background technique [0002] In the information age, data, as an important strategic resource, is growing explosively. All walks of life realize that whether it is enterprise innovation applications or scientific theoretical research, it needs to be driven by a large amount of reliable data as the cornerstone. At the same time Accompanied by a sharp increase in the need for data sharing. However, traditional centralized data sharing platforms face problems such as weak interaction capabilities, poor data privacy protection capabilities, and insufficient system scalability, which have become obstacles to data sharing. If an efficient, safe, flexible and scalable sharing method can be proposed, it can greatly increase the enthusiasm of data owners to share data and improve the uti...

Claims

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Application Information

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IPC IPC(8): H04L29/08H04L29/06G06Q40/04G06N20/00G06F16/182
CPCH04L67/12H04L67/1097H04L67/06H04L63/08H04L63/105H04L63/104H04L63/0435G06Q40/04G06F16/182G06N20/00H04L9/50
Inventor 孙恩昌孟康杨睿哲李萌司鹏搏张延华
Owner BEIJING UNIV OF TECH
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