Integration Method and Its Realization of Distributed Process Real-time Data
Liqiang Zhao · Jisuanji gongcheng · 2010
Considering the data integration problem in data acquisition devices, integration and management of heterogeneous production, an integration method of distributed process real-time data is proposed meanwhile the system architecture and the principle of data integration are given. Hash-AVL tree is adopted to describe the production data. XML is applied in the method to unify data access interface. The method is used in the automation system of a petrochemical enterprise. For the 100 data points in the concurrent test, the updating period is less than 3 s. Results show that the method of real-time data integration can integrate heterogeneous real-time data and meet the demands of process industry.