3results about How to "Fix data loss" patented technology

The application relates to a multi-source heterogeneous space-time data fusion modeling method and system, which comprises the following steps: creating a root directory as a physical address of a space data model on a computer system; creating subdirectories corresponding to various storage object types under the structure of the root directory as physical addresses of the storage object types; the storage object types comprise vector data, two-dimensional raster data and three-dimensional model data; adding related data of the various storage object types in a core metadata system table; newly creating database files corresponding to the storage object types under the various subdirectories and initializing the database files, and generating exclusive metadata tables corresponding to the storage object types in the database files; obtaining two-dimensional and three-dimensional joint data of a real scene three-dimensional scene as to-be-stored data; based on the type of the to-be-stored data, calling corresponding data conversion tools to convert the to-be-stored data, storing the to-be-stored data in corresponding database files through corresponding storage modes, and associating the to-be-stored data with the exclusive metadata tables in the database files.

This invention provides a CPU power-down delay monitoring circuit, including a power supply unit, an energy storage capacitor, a sampling unit, and a control unit. The power supply unit supplies power to the control unit, the sampling unit, and the control unit, and charges the energy storage capacitor. The energy storage capacitor stores electrical energy and provides backup power to the control unit and the sampling unit when the power supply unit fails. The sampling unit collects voltage data from the energy storage capacitor and transmits it to the control unit. The control unit evaluates the state of the energy storage capacitor based on the data collected by the sampling unit, and uses the electrical energy provided by the energy storage capacitor to complete data saving and control the AGV system to perform a safe shutdown operation when power fails. By monitoring the voltage data of the energy storage capacitor in real time through the sampling unit, the system can intelligently prioritize data saving and perform safe shutdown operations of the AGV based on the actual condition of the capacitor when the power supply suddenly fails, solving the problems of data loss and equipment safety hazards caused by capacitor aging or failure in traditional power-down protection systems.

This invention provides a method and system for statistical analysis of photovoltaic power plant operation data. The method includes: dividing the photovoltaic modules into several clusters based on their installation area and series-parallel topology to identify the common data characteristics of each cluster; simultaneously performing hierarchical filtering on the raw data uploaded from each cluster to generate corresponding ordered data subsets; constructing a corresponding data statistics window and simultaneously constructing a corresponding terminal data association matrix; outputting preliminary statistical results based on the data statistics window; simultaneously performing reverse deduction based on the terminal data association matrix according to the operating physical mechanism of the photovoltaic power plant to generate a corresponding deduced data sequence; calculating the degree of fit between the preliminary statistical results and the deduced data sequence; and simultaneously integrating the preliminary statistical results into a corresponding target statistical report when the degree of fit meets preset requirements. This invention can accurately statistically analyze various types of data, thereby improving statistical efficiency.