5 results about "Open water" patented technology

A modifiable swim short for use in a pool or an open water source includes a chassis that has a front waist section, a back waist section, and a crotch section. Descending below the front, back, and crotch sections may be a first leg portion and a second leg portion. The first leg portion may include a plurality of first segments that begin proximate a first leg opening and proceed upward toward the crotch section. The second leg portion may include a plurality of second segments that begin proximate a second leg opening and proceed upward toward crotch section. As a user removes segments from the first and second leg portions, the user becomes less dependent on the shorts and learns proper swimming technique.

This invention belongs to the field of intelligent collision avoidance and early warning technology for ships, specifically relating to a method and system for collision avoidance and early warning in open sea areas. The method includes the following steps in sequence: multi-source navigation data acquisition and analysis, intelligent filtering of open water conditions, real-time calculation of collision risk parameters, collision risk early warning triggering, automatic recording of close-range navigation events, and ship-shore synchronization of early warning and recorded information. The main hardware used in the system includes an AIS signal controller, marine ARPA radar, GPS equipment, gyrocompass, serial port server, switch, collision avoidance tablet computer, captain's cabin computer, ship-side communication host, and shore-side platform. This invention aims to solve the problems of "alarm fatigue" and safety risks caused by numerous invalid alarms and poor scene adaptability in traditional collision avoidance early warning systems during navigation in open sea areas by integrating intelligent scene filtering, accurate risk calculation, and ship-shore collaborative management into a system and method, thereby achieving efficient and reliable automatic collision early warning.

The utility model relates to a buoyancy knapsack suitable for water surface movement and water operation. The buoyancy knapsack comprises a bag body composed of foamed buoyancy material and air bags, the bag body is provided with a partition, and is closed through a waterproof zipper. The bottom of the bag body is filled with foamed buoyancy material to provide fixed buoyancy; the air bags at the upper part of the bag body provide additional buoyancy. The knapsack provides total buoyancy of no more than 10 kg, which is suitable for the buoyancy requirement of water surface movement. The knapsack is provided with detachable ropes, which can be fixed to the shoulders or waists of users, and the knapsack can be changed into a floating bag for use on open water surfaces or in open water areas after the ropes are detached, and has a water surface rescue function. In addition, the knapsack has the characteristics of storing personal articles, waterproofing and buoyancy support, and is suitable for use in water surface movement, fishery operation and swimming.

This invention discloses a floating launch and recovery system for waterborne objects. The floating launch device includes a launch platform and an air cannon. The launch platform floats on the water surface, and the air cannon is mounted on the launch platform, launching the target object into the water. The floating recovery device includes a recovery platform and a recovery bucket. The recovery platform floats on the water surface, and the recovery bucket is connected to the recovery platform. The recovery bucket is used to recover the target object launched into the water by the air cannon. This invention allows for launch and recovery experiments of target objects in open and semi-open water areas (such as reservoirs), reducing the cost of underwater retrieval of launched objects and improving experimental efficiency. It provides a new approach for experimental research on the problem of large-mass, large-scale, and high-speed launched objects entering the water.

The application discloses an open water hole depth measuring device and a using method thereof, and relates to the technical field of open bench blasting. The device comprises a measuring rope, a connecting ring, a counterweight iron ball, a hollow floating ball and a hollow connecting ring. The connecting ring is fixedly welded with the counterweight iron ball, and the hollow floating ball is integrally formed with the hollow connecting ring. One end of the measuring rope is connected to the hollow connecting ring, and the other end penetrates through the connecting ring. The application solves the problem that the water depth in a hole cannot be accurately determined and the interval charging construction is restricted in the prior art.