Internet of vehicles data sharing method based on master-slave chain

The invention relates to an Internet of Vehicles data sharing algorithm based on a master-slave chain, and belongs to the technical field of Internet of Vehicles and block chains. Aiming at the problems of high data sharing time delay and low throughput of an existing Internet of Vehicles block chain, firstly, road test units (RSU) are uniformly grouped through a K-means clustering algorithm; and then, the grouped RSUs run an intra-group weighted Raft algorithm in parallel, and the optimal leader node is selected by comprehensively evaluating the average SINR value, the data processing amount and the storage amount of the nodes, so that the stability of the block chain system is ensured. And finally, inter-group nodes adopt a BLS aggregation signature-based PBFT algorithm, and meanwhile, VRF is used for ensuring the security of block nodes. According to the method, the consensus time delay is reduced, and the system throughput and security are improved at the same time. 本发明是一种基于主从链的车联网数据共享算法，属于车联网和区块链技术领域。针对现