Blockchain Papers

汝飞 赵

No abstract is available for this record.

Authors unavailable

In recent years, as digital cryptocurrencies have gradually entered people's field of vision, the underlying blockchain technology has also attracted the attention of researchers.As a distributed ledger technology, blockchain has the characteristics of multi-party maintenance, non-tampering, openness and transparency.At the same time, blockchain technology is considered to be a technology with more research significance after the Internet.Blockchain technology has distributed accounting and storage, does not rely on data backup of intermediate institutions, and nodes share resources through smart contracts and are open and transparent, automatic execution, mandatory performance, and non-tamperable.This article combines blockchain and energy Internet technology.Because both have the characteristics of decentralization, high autonomy, marketization, and intelligence, they have greater application prospects.This article describes the application scenario analysis of distributed transactions in the energy Internet.First, the regional electricity sales model based on blockchain technology will be adopted to promote the implementation of distributed smart energy metering and settlement scenarios through a trustless smart contract mechanism.Secondly, it elaborates the business model of internal bidding energy consumption based on the weak centralization of blockchain technology.This model uses multi-party bidding to optimize the allocation of resources such as cold, heat, and electricity, restores the commodity and financial attributes of energy, and can greatly improve the energy efficiency and economic benefits of the microgrid.

L. Hao

Agriculture of China is a typical agricultural system of small producer and large market. Producers are too scattered. Agricultural foundation remains weak in the vast rural areas, especially poverty-stricken areas. All of the above have built up a hedge for the high input of information industry and been a serious impediment to agricultural informationalization. As the underlying technology of electronic tokens, blockchain has become the current research hotspot, and been applied in finance, logistics, electronic commerce, information traceability and so on. Blockchain is a distributed storage and computation system, which is decentralized, so it is highly compatible with the distributed economic system. It will be a comprehensive solution to the agricultural status that is "scattered, small and weak". The book China Blockchain Technology and Application Development Whitepaper 2016 gives guidance suggestions for the application of blockchain in different industries including agriculture. This article is proposed by combining the specific status of Chinese agriculture and the technical characteristics of the block chain. Blockchain will play a very important rule in information gathering, resource integrating, profits sharing and backtracking information. Framework of blockchain for agricultural product with 7 levels of information gathering layer, data layer, network layer, consensus layer, excitation layer, contract layer and application layer was designed based on generalized blockchain according to actual situation of agriculture in China. The function of information gathering layer and data layer weve used to storage encrypted information that is acquired by IoT node in a distributed way. The Network layer was designed with a semi-distributed topological structure based on the original Peer-to-Peer distributed network structure in the blockchain by adding the supper notes. In the consensus layer, the DPOS was implied install of POW, therefore, there is no need for intensive computing. Due to the use of smart contact in the contract layer, transactions can be completed automatically in the absence of intermediaries. Furthermore, members of the Blockchain Union can also get repay by participating in the consensus with the smart contracts. The application layer was designed to provide the interface for application of government, bank, enterprise, producer and consumers. This framework can provide flexible mechanism of distributed storage, complete information consensus system, reliable information tamper-proof function and practical incentive reward measures. Subsequently, the above functions have been explained in the agricultural products quality safety traceability and application for the agricultural product market information transparency in more detail. However, the application of block chain in the field of agriculture is still in the stage of exploration, the technology is far from mature, and still need to be perfected in the process of application gradually.

丰静 纪

No abstract is available for this record.

Youn-A Min, Yeong-Tae Baek

No abstract is available for this record.

Yonggui Fu, Jianming Zhu, Sheng Gao

CPS (Cyber Physical Systems) have got wide application and research, and information security risk evaluation became the key for CPS greatly developing. In view of the physical structure and business characteristics of CPS, this paper constructs an information security risk evaluation system for CPS. In the process of risk evaluation, colligating the analysis results from experts and the analysis results of external data sources' related big data for information security risk evaluation of CPS, by experts confirming the index system and indexes' weight values for CPS information security risk evaluation, further through using evaluation model to realize the quantitative calculation to CPS information security risks. This paper proposes using blockchain technology to construct the data's authenticity and reliability guarantee system for CPS and CPS related external systems, and constructing blockchain's layered model structure based on CPS. In the part of case analysis, comparing and analysing the evaluation system based on blockchain and big data and the evaluation system based on traditional mode, to confirm the research value of this paper.

서주연

No abstract is available for this record.

He Haiwu, Yan An, Zehua Chen

With the vigorous development of blockchain technology represented by Bitcoin, blockchain technology has gradually surpassed the era of programmable currency and entered the era of smart contracts. Smart contracts are event- driven and stateful. With the in-depth development of blockchain technology, smart contracts use protocols and user interfaces to complete all steps of the contract process, allowing users to implement personalized code logic on the blockchain. Contract technology has the characteristics of decentralization, autonomy, observability, verifiability, and information sharing. It can effectively build programmable finance and programmable society, and is widely used in digital payment, financial asset disposal, multi-signature contracts, cloud computing, Internet of Things, sharing economy and other fields. First, it explains the basic concepts, full life cycle, basic classification, basic structure, key technologies, development status and main technology platforms of smart contracts; then discusses the application scenarios and development issues of smart contract technology, aiming to provide smart contract technology. The research and development provides reference.

Wenyu Xu, Lei Wu, Yunxue Yan

No abstract is available for this record.

박연아, 김종현, In‐Kyu Kim

No abstract is available for this record.

李延, 黄宁, 范轶翔

作者报道了信息网 (Internet)同设备网 (Devicenet)互连的一种方法 ,采用客户 /服务器计算模型和Java技术 ,将自动控制技术同网络技术融合为一体 ,以实现信息网和设备网之间的无缝互连 .