Research on Data Storage Mode and Storage Access Interface Design of TSDA Server
Zhengrui Peng, Xiangyi Xu, Xin Wan · 2022
Time series data access (TSDA) is one of the most basic services of energy management system (EMS), which provides access, storage, data playback and subscription services of time series data (historical data). The most important problem of historical data server is storage. By studying the information model and public interface of TSDA, and taking real-time database PI as the disk data management system, this paper proposes a standardized implementation model of TSDA server. Through the hierarchical server architecture design, the implementation logic and persistence of the server are completely decoupled, and the multi storage of the server is realized. It not only uses PI to manage historical data efficiently, but also meets the requirements of TSDA database interface, which proves the superiority of hierarchical structure design.