Blockchain-based Decision Tree Optimization and Data Encryption Algorithm Design for Unmanned Equipment Environment Sensing System

In the context of rapid research and development of unmanned equipment products, how can we better design an environment sensing system suitable for unmanned equipment combat missions and combat tasks from the perspective of actual combat has become an important research topic. This paper explores the optimization scheme of unmanned equipment environment sensing system based on blockchain technology, proposes PBFT (DTPBFT) consensus algorithm based on C4.5 decision tree optimization, and combines with the full homomorphic encryption algorithm to put forward the shared data encryption scheme of unmanned equipment environment sensing system. The experimental results show that the classification accuracy of C4.5 decision tree is as high as 94.37%, which is better than other classification algorithms, indicating that the use of C4.5 decision tree can effectively improve the accuracy of the classification of the consensus nodes and the security of the PBFT algorithm. In the case of the same number of nodes, the throughput size of the DTPBRT algorithm proposed in this paper is always higher than that of the PBFT algorithm, and the consensus latency is higher than that of the PBFT algorithm only when there are Byzantine nodes inside the system, but the DTPBRT algorithm is able to effectively remove the Byzantine nodes inside the system, which verifies the superiority of this paper’s algorithm. Comprehensive encryption and decryption time-consuming and throughput data, this paper’s scheme in general can realize high data sharing efficiency and ensure the security of data sharing, which can provide technical support for the data security of unmanned equipment environment sensing system.