2results about How to "Prevent replay" patented technology

The application relates to the technical field of unmanned aerial vehicle control and communication, and discloses an unmanned aerial vehicle aerial photography automatic management and control method and system based on edge cloud cooperation, which comprises the following steps: a cloud service module generates global aerial photography task parameters; an edge master control module generates global action generation identification and cross-layer action tokens; a physical execution module combines a clock synchronization state and a physical in-place level signal to perform legality discrimination on the tokens, a closed release loop triggers aerial photography and outputs original high-definition code streams; the edge master control module extracts control signaling features, encapsulates the control signaling features into information anchor points, writes the information anchor points into the code streams, generates anchor point-containing media streams, and performs dynamic downsampling; and the edge master control module monitors a link state, generates a new generation of global identification when an exception occurs, and synchronously clears historical control instructions in a buffer area with a microcontroller. The application avoids action disorder caused by network delay, realizes time sequence binding of control signaling and video frames, and reduces network congestion and shutdown risks caused by bandwidth fluctuation.

This invention relates to the field of data fusion processing technology, specifically disclosing an ultrasonic water meter anti-theft method based on multi-sensor fusion and multi-level response. This invention achieves comprehensive detection of various water theft behaviors such as magnetic interference, physical damage, and casing deformation through a sensor monitoring network; accurately identifies the type and severity of anomalies through multi-source information fusion and intelligent level judgment; securely protects communication data through encryption authentication and rolling code mechanisms; and implements differentiated handling from record keeping and remote alarm to valve shut-off through a hierarchical linkage response mechanism, effectively improving the comprehensiveness of ultrasonic water meter anti-theft monitoring and the adaptability of response handling.