513 results about "Umbilical cable" patented technology

An apparatus for providing Global Positioning System (GPS) position data to an underwater diver for use in navigation is comprised of a SCUBA Flag/Antenna Float, positioned on the surface of the water, containing a Spring-loaded Cable Reel which is connected via a Signal Umbilical Cable to a GPS Capsule carried by the underwater diver. A GPS Antenna and power supply provide a signal to a GPS Receiver/Display which is encased in the GPS Capsule. The diver views icons displayed on the GPS Receiver to determine his/her current position in relation to previously entered waypoints, or geographical coordinates, such as a wreck, dive boat, or locations of interest plotted by the diver during the dive. The position information displayed by the GPS receiver enables the diver to navigate to and from the various locations or geographical coordinates while submerged.

The invention discloses an underwater structure detection robot control system and a motion control method. A water surface system comprises a water surface console, a water surface communication transceiver and an umbilical cable, and an underwater system comprises an underwater communication transceiver, a power supply unit, an embedded microcontroller, a power-propelled unit, a vision illumination unit, a motion switching unit, a safety protection unit and a sensor unit. Each function module is in a modular design, mounting and dismounting are convenient, the water surface console has an emergent stopping function, a wireless connection tablet personal computer is configured, movable monitoring can be achieved, communication modes are various, the data volume is large, the motion switching unit supports switching of two motion modes such as swimming and crawling, and reliable safety protection such as data storage and voltage and current detection can be achieved. By means of the underwater structure detection robot control system and the motion control method, the motion control method is based on a generalized prediction proportion integration differentiation (PID) control algorithm, system energy consumption can be effectively reduced, loads of components and parts are decreased, and a robot can be conveniently and stably controlled.

A system for a more efficient towing of a marine seismic array comprising one or more diverters attached to each lead-in cable. Because each lead-in cable has its own diverter, the need for dedicated towing ropes and taglines between lead-in cables is eliminated, thereby reducing the overall drag and fuel consumption. The diverters of the present invention are directly attached to the respective lead-in cables and are submerged, eliminating the need for taglines and additional flotation. The diverter of the present invention comprises of either a single span-wise hydro foil or two foil sections and is steerable. Similarly, the diverters of the present invention can be installed on the umbilical cables of seismic source subarrays to obtain the same benefits. As such, at least one diverter of the present invention can be attached directly to at least one umbilical cable of the seismic source subarray.

A combined system of an unmanned ship and an unmanned submersible comprises the unmanned ship located on the water surface and the unmanned submersible located underwater. The unmanned ship and the unmanned submersible are connected through an umbilical cable. A power twisted pair for power supply and duration and a signal line for transmitting control signals and data signals are contained in the umbilical cable. An unreeling system for automatically reeling and unreeling the umbilical cable is arranged on the unmanned ship and comprises an unreeling winch used for twisting the umbilical cable, an unreeling steering engine for controlling the unreeling winch to rotate to reel and unreel the umbilical cable and an encoder for measuring the unreeling length. A butt joint berthing device is arranged between the unmanned ship and the unmanned submersible. By the adoption of the combined system, the umbilical cable is reeled and unreeled through the unreeling system, and the underwater locating accuracy is improved; the unmanned submersible and the unmanned ship can be in butt joint stably through the butt joint berthing device, the butt joint berthing device is driven by the unmanned ship to move on the water surface, and the navigation efficiency is improved; and when underwater observation is needed, the unmanned submersible can be automatically separated from the unmanned ship, and the launching depth of the unmanned ship is controlled through the unreeling system.

A power umbilical cable includes one or more axial elongate phases for conducting electrical current, and one or more axial elongate structural components adapted to undergo stress to withstand axial and bending strain applied to the power umbilical cable in operation. The umbilical cable has an outer protection layer, each of the phases having a conductive core made of a plurality of metal wires. Each current conducting core includes at a central portion therein, and surrounded by the plurality of conductive metal wires, a flexible element to enable the wires to move in a radial direction to reduce their strain when the umbilical cable is subject in operation to stress causing the one or more elongate structural components to be axially strained.

The invention relates to a modality switching underwater robot and a control method thereof. The modality switching underwater robot comprises a water surface control system and an underwater control system, wherein the underwater control system comprises an underwater sensing device, an underwater controller and an underwater robot, and the underwater robot comprises a carrier module, a switching module, a trolley module and a video collecting module. According to the control method of the modality switching underwater robot, the underwater controller is adopted to enable video information collected by the video collecting module and sensing information sensed by the underwater sensing device to be uploaded to the water surface control system through umbilical cables and receive control signals sent out by the water surface control system at the same time so as to achieve control over the swimming movement and wall climbing cleaning of the underwater robot. According to the modality switching underwater robot and the control method of the modality switching underwater robot, the self-weight, the size, the manufacturing cost, the processing difficulty, the energy consumption of a power supply system and the like are reduced to the maximum degree, and the modality switching underwater robot has various functions of swimming, sorption, crawling, cleaning and underwater monitoring and is high in practicability and wide in application range.

An umbilical cable for delivering electrical signals between an aircraft and a smart weapon carried by the aircraft. The umbilical cable includes cabling comprising a plurality of conductive wires, a first connector provided on one end of the cabling and configured to connect to the aircraft, and a second connector provided on the other end of the cabling and configured to connect to the smart weapon. The umbilical cable further includes an interface circuit electrically coupled between the first connector and the second connector via the plurality of conductive wires. The interface circuit is configured to receive via the first connector a non-standard combination of signals comprising at least one of data signals, control signals and power signals not receivable directly by the smart weapon to carry out operations. Moreover, the interface circuit is configured to convert the non-standard combination of signals to a set of signals receivable by the smart weapon to carry out operations, and to provide the set of receivable signals to the smart weapon via the second connector.

The invention discloses a submersible pump waterjet type umbilical-cord cable remote control underwater robot which comprises a main chamber, a submersible pump, a waterjet pipeline network, a protective cover and a computer, wherein the submersible pump is mounted in the main chamber; the computer is arranged on an overwater workboat; the main chamber is of a rectangular hollow cavity structure;the submersible pump is mounted at the center of the bottom of the main chamber; the waterjet pipeline network comprises solenoid valves, a water spraying pipeline, a pipeline network water inlet andwater spraying ports; the pipeline network water inlet is arranged at a water outlet at the top of the submersible pump; the number of the water spraying ports is ten; the quantity of the solenoid valves is ten; the solenoid valves are respectively arranged at the water spraying ports on the pipelines connected to the corresponding water spraying ports; the solenoid valves and the submersible pump are respectively connected to an umbilical-cord cable; and the umbilical-cord cable is connected to the computer arranged on the overwater workboat through an umbilical-cord cable outlet. A waterjetdevice provided by the invention has the advantages that an underwater working property is stable, an autonomous stability property is stronger, an operation scope is wide, a degree of freedom is high and a control mechanism is simple.

Disclosed is a system and method for static and dynamic positioning or motion control of a marine structure by using real-time monitoring of at least one of a mooring line, marine environments, 6-dof movement of a marine structure, a tank state, a ship topside, the seabed, or their combinations. The static and dynamic real-time monitoring data of the mooring line is obtained and processed for positioning the marine structure or controlling and managing a motion thereof. Here, 1) a tension of a mooring line is measured by means of real-time monitoring of the mooring line, 2) various marine environment elements such as wind direction, wind speed, air humidity, atmospheric pressure, atmosphere temperature, cloud height, visibility, ocean wave, wave height, sea current speed, sea current direction, rain or the like are measured by means of real-time monitoring of the marine environments, 3) 6-dof movement of the marine structure is measured by means of real-time monitoring of the marine structure, 4) ullage and sloshing data of various tanks in the marine structure are measured by means of real-time monitoring of tank states, 5) damage and life of pipes, facilities or the like located at a ship topside of the marine structure are measured by means of real-time monitoring of the ship topside, 6) damage and life of umbilical cables, pipes, pumps and valves located on the seabed are measured by means of real-time monitoring of the seabed, and suitable static and dynamic positioning or motion control and management may be automatically performed based thereon.

An apparatus for generating electronic signals for application in subsea electromagnetic exploration. A surface generated high-voltage low-current source signal stabilized at a first frequency is supplied to a deep-tow vehicle (18) via an umbilical cable (16). The high-voltage low-current signal is transformed at the deep-tow vehicle to a high-current low-voltage a.c. signal by a transformer (52) within a cycloconverter (30). A semiconductor relay bridge (104) provides switchable rectification of the high-current low-voltage a.c. signal to provide a quasi-square wave at a second frequency, lower than the first frequency, for supply to a transmitting antenna (22) towed by the deep-tow vehicle. The times of the rectification switching are dependent on zero crossings of the high-current low-voltage a.c. signal. Allowable rectification switching times may be gated to occur only within pre-determined time windows to avoid noise-induced zero-crossing switching. The apparatus allows multiple transmission frequencies to be derived from a single stabilized source and improves spectral integrity by avoiding rectification switching at zero-crossings not occurring at the first frequency.

An underwater target detection platform system suitable for complex water areas comprises a water surface supporting system, an underwater platform, and an umbilical cable connected to the water surface supporting system and the underwater platform. A propeller, a detector, a navigation electronic cabinet and a signal reception module are disposed on the underwater platform. The detector can be a camera, sonar, a laser scanner and the like. According to a using method of the underwater target detection platform system, the underwater platform controls, according to external information and motion information obtained by a sensor inside the signal reception module, the motion of the platform itself under the assistance of sonar scanning and navigation positioning to continuously correct track deviation caused by ocean currents so as to keep the platform itself stable. The underwater target detection platform system can navigate in complex areas to carry out underwater detection, underwater searching and other tasks, and acousto-optic integrated measuring is achieved. The system meets the requirements of seas, lakes, rivers, reservoirs and other underwater environments and the requirements of facility probing, maintenance, resource development and utilization.

The invention relates to an underwater high-precision 3D reconstruction device and method. The device comprises a prismatic frame, the top of the frame is provided with a bar-shaped slide rail, a high-definition camera whose position can be adjusted horizontally is mounted on the slide rail, a laser is fixed to one prism under the slide rail, eight spotlights are fixed to the prismatic frame under the high-definition camera, top points at the top of the prismatic frame are connected to the bottom of a flange via supports respectively, the top of the flange includes a bearing terminal, the top end of the bearing terminal is connected with a main umbilical cable, and the bottom of the bearing terminal includes a branching cable. The method comprises calibrating the laser, calibrating direction of incident light, putting the device into the sea, collecting a laser image of a target object and images under different illumination directions, and carrying out rapid high-precision 3D reconstruction via structural light and photometric technologies after that the images are sent to overwater positions. According to the invention, different underwater reconstruction methods are realized, advantages of photometric technology and structural light method are combined, and a reconstruction result is more accurate.

The invention relates to an underwater pipeline detector based on an underwater robot. The underwater pipeline detector comprises an overwater control device and an underwater detection device, wherein the overwater control device is connected with the underwater detection device through an umbilical cable; the underwater detection device is arranged on the underwater robot, and is used for detecting position and burial depth of a seabed pipeline; and the overwater control device is used for controlling operation of the underwater detection device. Compared with the prior art, the underwater pipeline detector solves the difficulty that the position and the burial depth of the pipeline cannot be detected by means of an acoustic wave pipeline instrument detection method, multi-beam side-scan sonar detection, magnetic detection, ROV camera shooting, diving photographing by a diver and the like in a deep water region and under a turbid condition. Through adopting the method of combining the overwater equipment with the underwater equipment, and regarding ROV as a carrier, the underwater pipeline detector enters the deep water region, carries out non-destructive detection by adopting an electromagnetic induction principle, and overcomes the pipeline detection difficulties of small pipe diameter, sludge and sand layer coverage and turbid water region.

The invention relates to a slave-main type marine environment detection intelligent robot. The slave-main type marine environment detection intelligent robot consists of two major parts: a water surface supporting main ship and an unmanned underwater vehicle, wherein the water surface supporting main ship comprises a hydraulic propeller, a small arm, a small arm rotating joint, a supporting plate, a wireless communication transceiver, a ship body, a docking gripper, a central processing cabin, a pre-positioned sensor, a monitoring cabin, a spring buffer layer, a big arm rotating joint, a big arm, a brachiopod rotating joint, a strong-force bracket and a long buoy; and the unmanned underwater vehicle comprises a stern rudder, a caudal fin, an air guide sleeve, a connecting umbilical cable, a vertical propeller, a clamping port, a horizontal propeller, a machine body, an inductor, a detector and a mounted platform.

The invention relates to a novel submersible for capturing and recovering AUV through long-distance acousto-optic bidirectional guidance. The submersible is connected with a winch through a umbilical cable and comprises a supporting frame, and an acoustic receiving and transmitting transducer is installed on the supporting frame; an acoustic transponder in butt joint with the acoustic receiving and transmitting transducer is arranged at the end of the AUV; an optical generator is installed in the supporting frame, and an optical receiver in butt joint with the optical generator is installed at the end of the AUV. According to feedback signals of the optical generator and the acoustic receiving and transmitting transducer, the own forward direction of the submersible is corrected, and the own forward direction of the AUV is corrected so that the AUV can be in butt joint with the submersible. The submersible can get away from a mother ship to actively capture the AUV, acousto-optic bidirectional guidance of the submersible and the AUV is adopted for butt joint, the butt joint positioning distance and accuracy of butt joint recovery can be improved, the long-distance butt joint guidance capacity is improved, and the AUV can be recovered and released in the mode of being away from the mother ship.

The invention discloses an underwater robot control system for detection and operation. The underwater robot control system comprises a water surface control system and an underwater control system, the water surface control system is placed on a bank side or a mother ship, and the underwater control system is installed on an underwater detection and operation robot; the water surface control system includes a water surface control panel, a water surface communication transceiver, an umbilical cable, and VR glasses; and the underwater control system includes an underwater communication transceiver, an ARM9 main controller, an ARM-M0 alternate controller, an underwater power supply module, a power supply security detection module, a water leakage detection module, a first low voltage powersupply, a communication module, a second low voltage power supply, a download port, a pan-tilt camera, a sensor module, an underwater lamp, a mechanical hand, and a propeller control module. The underwater robot control system for detection and operation has the advantages of multi-function and modularization, and is convenient to install or disassemble; and the water surface control panel has anemergency stop function and is provided with a wirelessly connected tablet computer for mobile monitoring and positioning.

The invention relates to an automatic cleaner with a cableless remote control floating power supply for a swimming pool, comprising a rechargeable floating power supply, an umbilical cable, an underwater automatic cleaner of the swimming pool and a remote controller. The rechargeable floating power supply floats on the water surface with the upper part exposing out of the water surface and receives signals sent by the remoter controller to control the underwater automatic cleaner to work; the underwater auto-cleaner uses a direct current (DC) motor, can automatically clean the swimming pool in accordance with a predetermined program and further performs the cleaning work in accordance with the signals sent by the remote controller. In the automatic cleaner with the cableless remote control floating power supply for the swimming pool, a longer power supply cable is cancelled, therefore, the automatic cleaner is not limited by length of the cable and can reach all places of the swimming pool to perform the cleaning work, and the defects of winding and locking cables, and the like are eliminated simultaneously.