11 results about "Ferry boat" patented technology

The invention discloses a data compression transmission method and system applied to a ferry inspection image, and the method comprises the steps: collecting and obtaining the ferry inspection image in real time, recognizing a key inspection target region in the image, and carrying out the segmentation and partitioning of the image; compressing the key inspection target area based on lossless compression coding; the quantization step size is dynamically adjusted by comparing statistical variances of background pixels between continuous frames, and lossy compression coding is carried out on a background area; based on the boundary distance between the key inspection target area and the background area, adaptive compression coding is carried out on the transition area; constructing a hierarchical data packet; and constructing a data transmission optimization model, dynamically allocating data transmission links, and obtaining a transmission scheme with the highest total transmission. The method has the advantages that efficient data compression transmission is realized by accurately segmenting the image area and adopting a lossless, lossy and adaptive compression technology, the overall transmission efficiency is improved through intelligent transmission optimization, and the definition and real-time performance of the inspection image are ensured.

The application discloses a bridge mechanism of an amphibious bridge and belongs to the technical field of transportation. The bridge mechanism is suitable for the amphibious bridge and comprises a bridge span. The bridge mechanism comprises two middle bridge joints connected with each other, has a V-shaped bottom shape, and has a top plane structure used for passing of driving equipment; two end bridge joints connected to two ends of the two middle bridge joints through a bridge joint turnover mechanism, the turnover mechanism is used for lifting up the end bridge joints as the fulcrum relative to the connecting position with the middle bridge joints; and a plurality of air bag assemblies symmetrically connected to the side of the middle bridge joint. The amphibious bridge combines the land dry ditch bridge and the water ferry, can overcome the dry ditch obstacle on land and the river obstacle on water, and meets the double needs of smoothly passing the water and land obstacles.

The invention relates to an image analysis and AI video technology-based ship lockage and ferry safety intelligent supervision system. The system comprises a front-end multi-mode sensing system, a rear-end intelligent processing system, an early warning reporting system and a data middle station interaction module. The front end acquires high-quality data through a plurality of groups of multi-angle high-definition industrial cameras and a self-adaptive pan-tilt camera; the rear end is supported by an algorithm library to realize ship identity recognition, draft detection, ferry trajectory tracking and abnormal behavior recognition; the early warning system reports abnormal information in a grading manner according to severity; the data intermediate station module realizes bidirectional data interaction; ship draft detection is obtained through image preprocessing, identity recognition and freeboard height conversion calculation, ferry trajectory deviation is achieved through target detection, trajectory generation and direction included angle judgment, and the method aims at solving the problems that in the prior art, the function is single, the environment adaptability is poor, and safety parameter detection and data interaction capacity is lacked.

The embodiment of the utility model provides an unpowered cableway ferry river-crossing steel cable pulley device. The unpowered cableway ferry river-crossing steel cable pulley device comprises a wheel disc and a pulley assembly. The number of the wheel discs is two, the two wheel discs are detachably and oppositely arranged, and a containing space is defined between the two wheel discs. The pulley assembly is detachably and rotationally arranged in the containing space, and a rotating shaft of the pulley assembly is perpendicular to the surface of the wheel disc. The pulley assembly comprises a first pulley block, a second pulley block and a third pulley block, and connecting lines of the center of the first pulley block, the center of the second pulley block and the center of the third pulley block form a triangle. The first pulley block is provided with a first annular groove, the second pulley block is provided with a second annular groove, the third pulley block is provided with a third annular groove, and the steel cable extends along a straight line and can be in sliding connection with the pulley assembly through the first annular groove, the second annular groove and the third annular groove in sequence. And the steel cable is tangent to the first annular groove, the second annular groove and the third annular groove.

The application discloses a ferry cargo vehicle and pedestrian detection and tracking method based on an improved YOLOX algorithm and a ferry monitoring platform. The method comprises the following steps: collecting monitoring videos from ferry entrance cameras, frame extraction is performed on the videos, and a vehicle and pedestrian detection dataset based on ferry cargo is established; the self-constructed dataset is sent into a target detection network for training, and an optimal ferry cargo detection model is deployed on a service end to perform fact detection on ferry monitoring videos; a target tracking algorithm is used to complete real-time tracking of the same target in the monitoring videos and obtain the number of each category in the videos; the video stream after target detection and tracking is sent to the ferry monitoring platform through a socket protocol; and users can query ferry monitoring information and the number of each category of vehicles through a ferry management platform, compare the number with ferry load, so as to determine whether the ferry is overloaded.

The embodiment of the utility model provides an unpowered cableway double-body ferry. The unpowered cableway double-body ferry comprises a first ferry body, a second ferry body and a connecting assembly. The first ferry and the second ferry are arranged in parallel, the bow of the first ferry and the bow of the second ferry are oppositely arranged, and the stern of the first ferry and the stern of the second ferry are oppositely arranged; one side of the connecting assembly is connected with a deck of the first ferry, the other side of the connecting assembly is connected with a deck of the second ferry, an open space is formed between the connecting assembly and the opposite side walls of the first ferry and the second ferry, and the width of the middle area of the open space is larger than one half of the maximum width of the first ferry and the maximum width of the second ferry. The width of the middle area of the open space is smaller than the minimum width of the first ferry and the second ferry. Through the arrangement of the embodiment of the invention, the unpowered cableway catamaran ferry which is large in containing space and high in transportation efficiency is provided.

The invention discloses a ferry cabin inspection system based on image monitoring and an abnormity positioning method, and relates to the technical field of inspection positioning, and the method comprises the steps: obtaining a historical inspection log in a ferry cabin; constructing a causal knowledge graph representing causal relevance among various events in the cabin; collecting an inspection image sequence in the cabin in real time; identifying a real-time event set currently occurring in the cabin; calculating the probability of occurrence of the other events in a specified time window in the future; taking abnormal events in future events of which the occurrence probability exceeds a set threshold value in a specified time window in the future and the occurrence probability as potential abnormal risk events to be output; and based on the output potential abnormal risk event and the corresponding causal association path, positioning a potential source position or an association region where the abnormality occurs. The system has the advantages that all-directional automatic coverage of a cabin core area is realized, the dependence on manual inspection is effectively reduced, and the active protection capability of ferry operation safety is comprehensively enhanced.

The utility model discloses a cableway ferry steering oar device which comprises a manpower steering engine, an output shaft of the manpower steering engine is connected with a spur rack meshed with the output shaft through a gear, and the spur rack is driven to move by rotating the manpower steering engine. The rudder steel cable is connected with two ends of the spur rack; the other ends of the rudder steel cables on the two sides are connected with the two ends of the connecting rod respectively; the rudder device comprises a rudder stock, a rudder pipe sleeve assembly and a rudder blade, the rudder handle is connected with the rudder stock, the rudder stock is rotationally and tightly matched with the rudder pipe sleeve assembly, and the rudder blade is fixed at the bottom end of the rudder stock; the pulley guides the rudder steel rope to move along a specified path; through cooperation of the manual steering engine, the rudder steel rope, the adjusting pull rod and the connecting rod, the two rudder blades can be operated at the same time, the efficiency of changing the sailing direction of the cableway ferry is remarkably improved, the workload of sailors is reduced, the operation convenience and comfort are improved, and therefore the overall shipping experience is improved.

According to the air film lifesaving device for the ship passenger cabin and the ship applying the air film lifesaving device, the supporting frame body and the air film cabin main body which is separately hung in or above the supporting frame body are arranged on the ship body deck of a small ship which cannot be provided with a lifeboat, and the supporting frame body sinks along with the ship under the condition that the ship sinks; however, the floating top surface, the cabin enclosure bulkhead and the floating bottom surface of the air film cabin main body adopt a composite structure of a floating material and an air film structure, and the air film structure is automatically or manually inflated after the air film cabin main body enters water, so that the air film cabin main body is separated from the support frame body under the action of water buoyancy and floats to the water surface to form a'lifeboat '; the safety and lifesaving capacity of the small passenger ferry is improved with the thought of solving the problem at low cost, the aim that rescue must be achieved when the small passenger ferry enters water and turns and sinks is achieved, and the prevention capacity for mass death and mass injury accidents of the current small passenger ferry is enhanced.

A system for powering an electric vessel includes a removable modular battery comprising multiple removable, rechargeable battery stacks. The battery stacks are arranged within one or more battery frames to facilitate the removal of depleted and / or damaged battery stacks and their replacement with charged battery stacks. A method for powering an electric vessel using the modular variable-capacity power system disclosed herein is also provided. The system and method are particularly suitable for vessels undertaking journeys involving one or more intermediate stops, such as ferries.