With the rapid development of Decentralized Finance (DeFi) and Real-World Assets (RWA), the importance of blockchain oracles in real-time data acquisition has become increasingly prominent. Using cryptographic techniques, threshold signature oracles can achieve consensus on data from multiple nodes and provide corresponding proofs to ensure the credibility and security of the information. However, in real-time data acquisition, threshold signature methods face challenges such as data inconsistency and low success rates in heterogeneous environments, which limit their practical application potential. To address these issues, this paper proposes an innovative dual-strategy approach to enhance the success rate of data consensus in blockchain threshold signature oracles. Firstly, we introduce a Representative Enhanced Aggregation Strategy (REP-AG) that improves the representativeness of data submitted by nodes, ensuring consistency with data from other nodes, and thereby enhancing the usability of threshold signatures. Additionally, we present a Timing Optimization Strategy (TIM-OPT) that dynamically adjusts the timing of nodes' access to data sources to maximize consensus success rates. Experimental results indicate that REP-AG improves the aggregation success rate by approximately 56.6\% compared to the optimal baseline, while the implementation of TIM-OPT leads to an average increase of approximately 32.9\% in consensus success rates across all scenarios.

翻译：随着去中心化金融（DeFi）与现实世界资产（RWA）的快速发展，区块链预言机在实时数据获取中的重要性日益凸显。门限签名预言机利用密码学技术，能够就来自多个节点的数据达成共识并提供相应证明，从而确保信息的可信性与安全性。然而，在实时数据获取场景中，门限签名方法面临着数据不一致、异构环境下成功率低等挑战，限制了其实际应用潜力。为解决这些问题，本文提出了一种创新的双重策略方法，旨在提升区块链门限签名预言机的数据共识成功率。首先，我们提出了一种代表性增强聚合策略（REP-AG），该策略提升了节点所提交数据的代表性，确保其与其他节点数据的一致性，从而增强门限签名的可用性。此外，我们提出了一种时序优化策略（TIM-OPT），该策略动态调整节点访问数据源的时序，以最大化共识成功率。实验结果表明，与最优基线相比，REP-AG将聚合成功率提升了约56.6%，而TIM-OPT的实施在所有场景下平均带来约32.9%的共识成功率提升。