3 results about "Marine safety" patented technology

The utility model provides a kind of ship safety monitoring circuit, equipment and system, wherein ship safety monitoring circuit includes hydrogen concentration sensor subcircuit, temperature sensor subcircuit, pressure sensor subcircuit, signal conversion subcircuit, threshold comparison subcircuit and control subcircuit, wherein: hydrogen concentration sensor subcircuit output end, temperature sensor subcircuit output end and pressure sensor subcircuit output end are electrically connected with signal conversion subcircuit input end;Signal conversion subcircuit output end is electrically connected with threshold comparison subcircuit first input end;Threshold comparison subcircuit second input end is as ship safety monitoring circuit second input port, and threshold comparison subcircuit output end is electrically connected with control subcircuit input end;Control subcircuit output end is as the output port of ship safety monitoring circuit.The utility model provides a kind of ship safety monitoring circuit, equipment and system, realize the early warning to hydrogen leakage, pressure anomaly and temperature out of control and other potential safety risks.

This invention relates to the field of marine safety equipment technology and provides an automatic cleaning type deck water seal level alarm device for marine inert gas systems. The device includes an inert gas main pipe and a cleaning tank for inert gas pretreatment and pressure buffering. The device further includes: a level switch, which is vertically installed with the cleaning tank and connected to it via a stainless steel connecting pipe; a control valve group, which controls the flow status of the stainless steel connecting pipe and the back pressure pipe; and a monitoring unit for controlling the working status of the control valve group. This invention effectively solves the technical problems of existing devices, such as easy corrosion, low monitoring accuracy, lack of automatic maintenance, and incomplete fault monitoring. It achieves accurate level monitoring, automatic cleaning and maintenance, and multiple fault warnings, improving the reliability and service life of the device and adapting to the special working conditions of marine applications.

This invention relates to the interdisciplinary field of marine safety monitoring and computer vision, specifically to a precise early warning method and system for individual-level strong currents at the coast based on monocular time-averaged flow field reconstruction and spatiotemporal collision with tourists. The method includes the following steps: S1: Acquire coastal video images captured by a monocular camera, convert the coastal video images into orthorectified images using a homography matrix, and extract tracer particles from the orthorectified images; S2: Perform frequency domain cross-correlation calculations on two consecutive frames of the orthorectified images to obtain the instantaneous flow velocity field. This invention uses a lightweight time-domain sliding window integral combined with a fast Fourier transform, effectively filtering out wave interference and extracting a pure strong current flow field with very low computational power consumption, enabling the entire system to be processed in real-time directly on a common edge computing host at the front end.