Design and Implementation of a System for Statistics of Data Flows of the Huairou Solar Observation Station

For application services of data providers statistical functions about data flows reflect an aspect of service quality. Statistics of using and sharing different types of data can provide references for analyzing requirement patterns of data. Therefore, it is practically highly valuable to design a system for statistics of data flows. Aiming at data-product services of the Huairou Solar Observation Station, we design a system of real-time statistics of data flows by adopting the LAMP as the development environment. The system framework consists of a database-updating module, a data-flow query module, a data-flow visualization module (showing histograms and pie charts), a statistical application layer, a data layer, a service layer, and a user layer. The system achieves needed statistical functions and query capabilities for any types of data flows from a chosen instrument at a given time. The system has advantages such as accurate statistics, queries through multiple keywords, visual displays, and good expansibility. It can meet current and future needs, and has the potential to be adapted for data generated elsewhere.