面向复杂配电环境的融合终端异构网络切换数据帧修复机制

Data Frame Restoration Mechanism for Heterogeneous Network Switching of Fusion Terminal in Complex Distribution Grids

摘要:

针对复杂配电环境下融合终端在异构网络切换过程中面临的数据帧损伤与丢包问题，提出了一种基于数据类型分类的动态修复机制。该机制采用“损伤检测-类型识别-分类修复”的三阶段处理流程：在检测到数据帧异常后，首先解析帧结构特征，并结合请求指令时序、邻近帧关联性及预设样本库匹配完成数据类型判定，将其区分为数值型、状态型与固定型数据；在此基础上，针对不同类型数据分别采用历史区间抽样、状态空间遍历及模板替换等修复算法进行差异化恢复；最后通过校验段验证确保修复数据的有效性。实验结果表明，所提机制能够将数据传输完整率提升至99.2%，平均修复时延控制在50 ms以内，并使信道拥塞缓解率达到40%，有效提升了复杂配电通信场景融合终端的数据传输可靠性。

Abstract:

Aiming at the issues of data frame damage and packet loss faced by fusion terminals during heterogeneous network switching in complex power distribution environments, a dynamic restoration mechanism based on data type classification is proposed. The mechanism adopts a three-stage processing flow of "damage detection-type identification-categorized restoration". Upon detecting an abnormal data frame, it first parses the frame structure characteristics, and combined with request command timing, adjacent frame correlation and preset sample library matching, the data type is determined, which classifies them into numerical, status and fixed types. On this basis, differentiated restoration algorithms, such as historical interval sampling, state space traversal and template replacement, are applied according to the specific data type. Finally, the validity of recovered data is ensured through the validation of verification segment. The results show that the proposed mechanism can increase the data transmission completeness rate to 99.2%, control the average restoration delay within 50 ms, and achieve a channel congestion mitigation rate of 40%, which validates its effectiveness in enhancing the data transmission reliability of fusion terminals in complex power distribution communication scenarios.