3results about How to "Efficient call" patented technology

This invention belongs to the field of bank card fraud detection technology, and discloses a bank card fraud detection system based on the uncertainty of funds. The system includes: a user feature establishment end, a behavior analysis end, and a data update end. The user feature establishment end cleans and standardizes user data, providing a comprehensive data foundation for subsequent analysis. The behavior analysis end collects the fingerprint biometrics of the current initiator and deeply analyzes the anomalies of transaction time, region, and network environment to accurately determine fraudulent transactions. The data update end updates the user's transaction data in real time, optimizing the detection model and improving recognition accuracy. The bank card fraud detection system based on the uncertainty of funds accurately detects bank card fraud and dynamically updates user features through the quantification of fund uncertainty, biometric verification, and multi-module collaboration.

The application belongs to the technical field of novel power system operation optimization, and particularly discloses a power unit combination optimization method and system based on wind power plant fast frequency response; the method comprises the following steps: a system frequency response model considering wind power fast frequency response characteristics is established; the difference between active step disturbance and wind power response power and wind power ramp-off power are taken as the input of the system frequency response model, and the time domain expressions of the first frequency drop minimum point and the second frequency drop minimum point are obtained respectively; under the premise of meeting the system safety and stability operation constraint, a unit combination optimization model containing frequency change constraint is constructed with the minimum operation cost as the target; the nonlinear constraint is equivalently processed, the unit combination optimization model is solved, and the optimal power unit combination operation strategy is obtained; the application can fully exert the performance of wind power fast response, and can fully exert the adjustable capacity of wind power while coordinating frequency modulation with synchronous machines.