2results about How to "Reduce human judgment" patented technology

The application provides a kind of aircraft surface frost detection method based on laser thickness measurement and visual image analysis, which comprises the following steps: S1, build aircraft surface frost detection system;S2, train and build image feature reference library under ice-free state;S3, initialize setting to detection system;S4, calculate frost layer thickness;S5, collect aircraft surface image and calculate abnormal value;S6, collect image of ground area and calculate abnormal value;S7, normalize and weighted fusion calculation are carried out to multi-source data;S8, judge whether the fusion value is greater than the preset threshold, if the fusion value is greater than the preset threshold, there is ice and frost in the current detection area of aircraft surface, and the detection system will trigger defrosting prompt alarm and defrosting. The application constructs a multi-modal fusion scheme based on laser scattering model and visual image anomaly detection algorithm, considers the complex mechanism and optical properties of frost layer formation, this method has higher robustness to environmental interference, and can trigger alarm and deicing operation in time, effectively reduces the burden of aircraft maintenance personnel, enhances the safety and efficiency of aircraft ground operation.

The application belongs to the technical field of data analysis, and discloses a case clue acquisition method and system based on intelligent terminal forensics data, which comprises the following steps: collecting multi-source forensics data from an intelligent terminal device, performing time synchronization, denoising and format unification processing on the collected multi-source forensics data, extracting a behavior feature vector and mapping it to a unified feature space, and outputting a standardized feature set; combining the standardized feature set with a corresponding time label to generate a tamper-proof forensics fingerprint, constructing a double-index storage structure according to time and geographical dimensions, and performing cross-terminal evidence retrieval, integrity verification and tracing; according to the standardized feature set and the tamper-proof forensics fingerprint, the identity and instrument association of cross terminals are checked through behavior signature consistency representation; a subthreshold cumulative trigger mechanism is adopted to cumulatively evaluate the behavior features of the intelligent terminal within a preset time window, and an identity-instrument consistency assertion is output; and the case reasoning accuracy and case clue acquisition efficiency are improved.