Ontology-based power grid data mart automatic data loading method

The invention discloses an ontology-based power grid data mart automatic data loading method. The method comprises the following steps: constructing a power grid data warehouse based on a DV modeling method; establishing a DV inconsistent data detection and restoration data set; detecting a central point and an affiliated table thereof, and verifying a data dependency relationship and a true mode thereof; detecting and calculating data semantic confidence and determining a repair value; constructing a power grid data mart; establishing a temporary dimension table, repairing inconsistent data and loading dimension table data; and establishing a temporary fact table, repairing inconsistent data and loading fact table data. According to the method, the ontology knowledge base, the function dependency relationship and the data semantic confidence coefficient calculation method are utilized, under the condition that a power grid DV data warehouse is not changed, the inconsistent data are detected and repaired, eff