A collaborative caching method based on lightweight blockchain in the Internet of Vehicles environment

Abstract

The invention discloses a collaborative caching method based on a lightweight block chain in an Internet of Vehicles environment, which belongs to the field of Internet of Vehicles. The lightweight blockchain architecture is applied to the Internet of Vehicles environment. The underlying vehicle layer assumes the role of a lightweight node, reports driving data to the middle layer, requests the Internet of Vehicles data to the middle layer, and verifies the data; the middle roadside node layer assumes The role of the full node is to store blockchain data, provide requested data services for the underlying vehicles, report the Internet of Vehicles data to the cloud server, and use multi-way side nodes to collaboratively cache blockchain data; the top cloud service layer assumes the role of a full node and saves the area Block chain data, provide services for the intermediate roadside node layer, and participate in the intermediate roadside node layer collaborative cache initialization process. This method solves the problem of data security and provides a portable data verification method. Through the cooperative cache between multiple roadside nodes, the maximum utilization of storage resources of roadside nodes is realized, and the delay of communication between roadside nodes and vehicles is reduced.

Description

technical field [0001] The invention relates to the technical field of the Internet of Vehicles, in particular to a lightweight block chain construction scheme based on the Internet of Vehicles environment and a method for collaborative caching between roadside nodes. Background technique [0002] With the development of the Internet of Vehicles technology, the number of nodes in the Internet of Vehicles is increasing, and the data that needs to be processed in the Internet of Vehicles network is also increasing. At the same time, as the traffic load in the network increases, the traditional centralized data processing structure (such as the server-client model) is also facing great challenges. Faced with more and more vehicle requests, the storage and computing performance requirements of roadside nodes in the Internet of Vehicles are also getting higher and higher. In the traditional Internet of Vehicles model, the performance of a roadside node in a certain road section ...

AI Technical Summary

Problems solved by technology

However, in this architecture, the computing performance and storage performance of vehicle nodes are relatively high, and there are many data types and blockchain network types. It fails to take into account the limited storage capacity and query resources of roadside nodes. And did not optimize the vehicle's request delay

[Li J, Liu Z, Chen L, et al.[IEEE 2017IEEEInternational Symposium on Parallel and Distributed Processing with Applications and 2017IEEE International Conference on Ubiquitous Computing and Communications(ISPA / IUCC)-Guangzhou, China(2017.12.12-2017.12.15)] A Blockchain-based The distributed cloud service security architecture, in which the genetic algorithm is used to place file block copies between multiple users and multiple data centers, which improves the response performance of the P2P network and optimizes the transmission time of distributed cloud service architecture services , but failed to optimize the behavior of the node during operation

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