GT-Chain A Fair Blockchain for Intelligent Industrial IoT Applications

Abstract : In Industrial Internet of Things (IIoT), a number of mutually untrusted devices with diverse computing resources and application requirements often need to work together to serve industrial production. When applying permissionless blockchain to process transactions among these devices, we are concerned with two types of fairness: mining fairness (i.e., miners should obtain commensurate rewards according to their respective invested computing power) and transaction-processing fairness (i.e., transaction packing and confirming is in a desired fair order). To address the two types of fairness simultaneously, this paper proposes GT-Chain, in which miners select transactions according to Geometric-distribution and propagate transactions with a Time-to-live limit for achieving transaction-processing fairness as well as balancing the processing efficiency and fairness. Besides, GT-Chain inherits properties of a famous blockchain called FruitChain for achieving mining fairness. We then conduct a probability analysis to quantify the efficiency of transaction processing and define a Euclidean-distance-based fair degree to measure the fairness of transaction processing. Extensive simulations verify that GT-Chain can well achieve our design objectives, and our theoretical model is accurate. This paper is helpful in better designing blockchain protocols for IIoT.

 EXISTING SYSTEM :

 ? It can be seen that the IIoT will make significant impact on existing business models in many areas, including manufacturing, energy, transportation, agriculture, retail, and many more. ? The blockchain is expected to make a profound effect and influence over the existing IIoT platform. ? Most existing industrial facilities, such as micro-grids, smart-grid IoT, vehicular ad-hoc networks (VANETs), etc., designed are unable to connect to IIoT with built-in intelligence, which need interfaces to communicate with IIoT. ? In many existing IoT systems, the interoperability is managed at the application level, where the operators are required to be proficient in different smart operations.

 DISADVANTAGE :

 ? The blockchain is mainly used to store traceability information on-chain while most other food-related data is stored off-chain using EPC codes, thus alleviating the problem of data explosion. ? Specifically in the IIoT scenario, with the growing number of sensor nodes and the amount of data generated, the problem is compounded. ? We present currently open issues in the adoption of the blockchain technology in Industry 4.0 and discuss newer application areas. ? Storage of medical scanning/imaging and other such high quality and large size data is another practical issue for a feasible, scalable and useful implementation of blockchain for healthcare.

 PROPOSED SYSTEM :

 • This purpose, a blockchain enabled IIoT architecture is proposed which combines the IoT platforms and the blockchain. • The problem is very difficult to solve, but easy to verify, which enables other participants to easily validate the proposed next block. • There are a number of consensus models have been proposed for blockchain systems, including Ripple, multichain, sieve, raft, proof of elapsed time, quorum, and Federated consensus. • The GDPR is a regulation on data protection and privacy proposed by EU, which aims to give individuals the right to protection of their own data. • In IIoT, lightweight smart devices (sensors) can serve as a LN and can propose new transactions that will be propagated between nodes and eventually will be added to a block in the blockchain.

 ADVANTAGE :

 ? This inter-network of anything in the production system context helps in automation of industrial production and improves intelligence, efficiency, and safety. ? Side-blocks contain smart contract reports and help in maintaining the accuracy of the logs and efficiency of block fetching. ? MedRec is a popular instantiation of health care blockchain architecture for storing EHRs efficiently and effectively. ? Blockchain as a tool can accelerate this global energy transformation by lowering the transaction costs and in operating the grid in a more efficient manner. ? Blockchain has significantly enhanced the working efficiency in the manufacturing industry by uploading the data on the shared ledger.