Distributed electric quantity transaction block chain storage method and device based on Merkel tree

Abstract

The invention provides a distributed electric quantity transaction block chain storage method and device based on a Merkel tree, and relates to the technical field of block chains, and the method comprises the steps: extracting a key element field from obtained transaction information; establishing a Merkel tree according to the key element fields, and calculating a first hash value of a tree root; broadcasting the key element field and the first hash value at the same time in the blockchain network, updating the first hash value into the block after a consensus is formed, and storing transaction information locally by the main node; establishing a new Merkel tree according to the actual delivery information and the transaction information, and calculating a second hash value of a new treeroot; broadcasting the new key element field and the second hash value at the same time in the blockchain network; and after a consensus is formed, updating the second hash value into the block, wherein the main node locally stores actual delivery information. Therefore, the scale of the uplink data is reduced based on the storage technology of the Merkel tree, and the complexity of information storage and updating in the matching, settlement and checking stages of the transaction is reduced on the premise of ensuring the safety and traceability.

Description

technical field [0001] This application relates to the technical field of applying blockchain to distributed electricity trading, and in particular to a storage method and device for distributed electricity trading blockchain based on a Merkle tree. Background technique [0002] In recent years, with the continuous increase of the proportion of various distributed power generation resources and energy storage resources on the distribution network side, users at the end of the power grid are changing from single energy consumers to flexible subjects integrating energy production and sales. Bringing an urgent need for peer-to-peer distributed electricity transactions. Through point-to-point distributed electricity trading, users with abundant energy can obtain economic benefits by selling energy to energy-scarce users, and energy-scarce users can obtain energy at a lower cost. Since the two parties in a point-to-point transaction are usually under the same distribution networ...

AI Technical Summary

Problems solved by technology

Using this method, blockchain technology can be effectively used in point-to-point distributed electricity transactions, which solves the problem of huge data storage burden and block redundancy caused by point-to-point distributed electricity transactions.

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