基于区块链的航天测控数据存储研究

Research on Space TT&C data storage based on blockchain

针对航天测控网集中式存储过程中,存在测控数据安全性、完整性和可追溯性的问题。结合区块链去中心化、难篡改和可追溯的特点,提出了一种基于区块链的航天测控数据存储架构,该方案采用了改进PBFT共识算法,解决了区块链存储限制,将测控数据摘要存储在区块链上,原数据安全有效地存储于分布式数据库;实验结果表明,基于区块链的航天测控数据存储系统有效地保护了数据在存储与共享过程中的安全性,改进的PBFT共识算法降低了网络共识时间,为测控数据存储提供了更优的稳定性和更高吞吐量,进一步推动区块链技术应用于航天测控领域奠定了基础。

In the centralized storage process of space tt&c network,the safety,integrity and traceability of data exist.Based on the decentralized,difficult to tamper and traceable characteristics of blockchain,this paper proposes a space tt&c data storage architec⁃ture based on blockchain.It improved PBFT algorithm is adopted to solve the blockchain storage limitation,and the tt&c data abstract is stored on the blockchain,and the original data is stored in the distributed database safely and effectively.The experimental results show that the space tt&c data storage system based on blockchain effectively protect the safety of data in the process of storage and shar⁃ing,improved PBFT algorithm reduces the network consensus time,provides the data storage of better stability and higher throughput,blockchain applied in space tt&c areas laid a solid foundation.