191 results about "Umbilical cable" patented technology

The invention discloses an umbilical cable for a lunar penetrator and a coiling installation method of the umbilical cable, and relates to the technical field of lunar penetrators. The umbilical cable main body comprises an armor tube, an umbilical cable insulating sheath and an umbilical cable metal shielding layer, a Kevlar rope and a cable are arranged in the umbilical cable metal shielding layer, and the length of the Kevlar rope is smaller than that of the cable. When the umbilical cable main body is mounted in a coiled manner, the umbilical cable main body extending out of the penetration stage forms an inverted S-shaped back-bending section outside the joint of the penetration stage and the power stage; and meanwhile, the umbilical cable main body is also subjected to wave-shaped wire coiling on the outer wall of the power stage, and is mounted on the power stage through a fixing assembly. The invention provides an umbilical cable for a lunar penetrator and a coiling installation method of the umbilical cable, which can ensure that the umbilical cable is not damaged in a penetration process so as to carry out effective data transmission.

The invention discloses a dynamic encryption transmission method and system for sound-light alarm signals, and relates to the field of data encryption, and the method comprises the steps: obtaining a dynamic environment entropy value; generating a pseudo-random chaotic sequence; obtaining a helium-oxygen mixed gas density parameter in the dynamic environment entropy value; segmenting a preset standard alarm waveform into a plurality of signal waveforms in a time domain, and generating a distorted signal waveform according to the helium-oxygen mixed gas density parameter; performing encryption modulation on the distorted signal waveform to generate an encrypted distorted signal waveform; determining a sending sequence and a sending interval of the encrypted distortion signal waveform by combining a pseudo-random chaos sequence based on an impedance fluctuation value and background acoustic spectrum characteristics in the dynamic environment entropy; generating a dynamic modulation signal based on the transmission sequence and the transmission interval; the dynamic modulation signal is sent to a water surface console through an umbilical cable; and receiving the guide pulse, performing phase conjugation processing on the guide pulse, generating an echo verification signal, and transmitting the echo verification signal back to the water surface console.

The invention discloses an underwater blowout preventer myriameter photoelectric composite cable lowering and recycling system which comprises an integrated frame, a cable storage winch is connected to one side of the bottom of the integrated frame, a cable arrangement device is further connected to the bottom of the integrated frame, the cable arrangement device is arranged close to the cable storage winch, and a second guide pulley and a compensator are further connected to the bottom of the integrated frame. The middle of the integrated frame is connected with a traction winch, one side of the traction winch is connected with a first guide pulley, the cable storage winch is connected with an umbilical cable, and the umbilical cable sequentially penetrates through the cable arrangement device, the second guide pulley, the compensator, the first guide pulley and the traction winch. Double-closed-loop control is adopted, the problems that distance cable arrangement dislocation is caused by accumulative errors of PLC control synchronous cable arrangement and umbilical cables and underwater blowout preventers cannot be normally recycled and put down due to faults of a single sensor are solved, self-adaptive cable arrangement and real-time correction are conducted in a mechanical mode, accurate cable arrangement is achieved, and the working efficiency is improved. Compared with an angle sensor, the structure is simple and no accumulative error exists.

The invention relates to the technical field of ship offset early warning, and provides a ship offset early warning method for a deep-sea mining in-situ pilot production system, which can solve the problem that the existing mother ship offset monitoring mode is too simple, improve the accuracy of judging the position of a ship body and perform effective early warning. Comprising the following steps: S100, establishing an information transmission network and carrying out data acquisition; s200, carrying out coordinate conversion on the collected real-time longitude and latitude information of the ship and the vehicle, and calculating a relative distance between the ship and the vehicle; s300, calculating a ship offset area of the mining system, calculating an allowable offset of a mining ship relative to a mining vehicle, dividing operation states according to the offset, and determining a reasonable ship offset area map; and S400, the ship deviation safety early warning area is built in a system early warning program, monitoring data are read at regular time, monitoring information such as environment monitoring information, ship-vehicle distance and the like and umbilical cable length monitoring information are read in real time, and the ship deviation state is judged in real time according to the ship deviation safety area.

The invention provides a deepwater semi-submersible drilling platform pressure control drilling MPD control system which comprises a platform rotary table face. A platform wellhead flow divider, a marine riser expansion joint, a marine riser tension ring, a marine riser rotation control pup joint, an MPD hydraulic control pup joint, an MPD marine riser annulus sealing device, a marine riser four-way joint, a drilling marine riser, an underwater blowout preventer set and a seabed underwater wellhead are sequentially connected to the platform rotary table face from top to bottom. The MPD hydraulic control pup joint is connected with a rotary control pup joint power unit through an umbilical cable I, an umbilical cable roller frame I and a cable hose, and the rotary control pup joint power unit is connected with a deepwater MPD electro-hydraulic control system main control station; the MPD marine riser annulus sealing device is connected with the annulus sealing device and the buffer manifold hydraulic power unit through an umbilical cable II, an umbilical cable roller frame II and a cable hose and is connected with the deepwater MPD electro-hydraulic control system master control station; the throttling hydraulic power unit is connected with the deepwater MPD electro-hydraulic control system master control station. According to the system, pressure regulation and control, equipment management and operation safety guarantee in the deepwater pressure-controlled drilling well are realized.

The invention discloses a cooperative control simulation system for an underwater robot and an umbilical cable system, belongs to the technical field of ocean engineering simulation and automatic control, and is used for analyzing system dynamic characteristics in the research and development stage of deep sea operation equipment. Comprising an environment initialization and marine environment construction module, a mother ship model construction module, an underwater robot and umbilical cable coupling module, an instruction generation module, a man-machine interaction control module and a data acquisition and storage module. According to the method, an external interference source with physical authenticity is provided for a control algorithm by combining an energy density function and simulating a composite environment modeling method of a sea level height field and an LOD dynamic grid, and a distributed model prediction control algorithm for uniformly optimizing underwater robot trajectory tracking and umbilical cable tension safety maintenance is constructed; data such as the motion state of the underwater robot and the tension of the umbilical cable can be output in real time, algorithm performance testing is completed in a virtual environment, and dependence on high-cost sea testing is not needed.

The invention provides a sea cucumber culture fishing underwater robot cooperative work system, and the system comprises a fishing boat module which is used as a water surface control center and provides calculation, communication and power support; the plurality of underwater robot modules are used for executing underwater autonomous navigation, target identification, sea cucumber fishing and data acquisition tasks; the umbilical cable collecting and releasing system module is used for collecting, releasing and managing an umbilical cable for connecting the fishing boat and the underwater robot; a cooperative control system module; a balance adjustment system module; according to the invention, through unified task allocation and dynamic path planning of a plurality of underwater robots, by using an improved A * algorithm and a UWB positioning technology, the plurality of robots can efficiently cover an operation area without omission, and the distance is calculated in real time to trigger an obstacle avoidance program, so that the obstacle avoidance efficiency is improved. The problems of low efficiency, repeated fishing, region omission, high collision risk and the like caused by a traditional manual region division or simple wireless communication cooperation mode are solved.

The invention discloses a seabed shallow casing section thermal insulation structure for polar region supercritical carbon dioxide drilling, which comprises a casing, a thermal insulation coating, a protective coating, an annular cement slurry layer, an electric heating pipe, a sensor module, a wireless conductive module, a ground system and a seabed wireless transmission module, and is characterized in that the electric heating pipe is fixed on the outer wall of the casing through a hoop; the outer wall of the casing pipe is sequentially coated with a heat preservation coating, a protective coating and an annular cement paste layer from inside to outside, the wireless conductive module is integrated at the end of the casing pipe, and the ground system comprises a ground data acquisition system and a ground control center. The sea surface platform is provided with a ground data acquisition system and a ground control center which are connected with the seabed wireless transmission module through an umbilical cable, and temperature and pressure data acquired by the sensor module are uploaded to the ground control center. According to the invention, the problems of rapid heat loss, annular air channeling, casing mechanical property degradation, poor drilling fluid fluidity and the like of the seabed shallow casing section in the polar region extreme low-temperature environment are solved.

The utility model discloses a water surface and underwater integrated robot detection suite which comprises a water surface unmanned ship assembly and an underwater robot assembly. Two electric control bins, a network bridge, a wireless data radio and a satellite compass are arranged on the upper portion of the rear end of a hull frame of the water surface unmanned ship assembly, two propellers are installed at the bottom of the rear end, three ultrasonic transducers are triangularly arranged on the plane of the bottom, an underwater robot winding and unwinding mechanism comprising a cage is arranged in the middle of the hull frame, and an umbilical cable winding and unwinding mechanism and a ball machine are arranged at the front end of the hull frame. A take-up turntable and a pay-off roller are arranged in the umbilical cable take-up and pay-off mechanism and connected with the zero-buoyancy umbilical cable; an ultrasonic transducer and a relative positioning box are fixed to the top of a frame of the underwater robot assembly, and eight propellers are installed in the underwater robot assembly. The water surface unmanned ship assembly and the underwater robot assembly are connected through a zero-buoyancy umbilical cable, and communication, power transmission and collaborative operation are achieved. The detection suite is low in operation difficulty, can effectively improve the inspection accuracy, is suitable for various water area environments, and efficiently completes the detection operation.

The invention provides a time-space structured sparse optical coding deepwater heterogeneous network data synchronization method and system, and the method comprises the steps: carrying out the sparse decomposition of the time sequence clock deviation data of each current underwater node at a transmitting end device of a deepwater heterogeneous network based on a trained over-complete dictionary, and obtaining an original sparse vector; converting the dynamic compression observation data corresponding to the original sparse vector into an optical signal, and transmitting the optical signal to a receiving end device of the deepwater heterogeneous network by a transmitting end device through an umbilical cable; demodulating the optical signal into an observation vector through receiving end equipment, inputting the observation vector into the trained deep expansion network model, and outputting a reconstructed sparse vector by the deep expansion network model; and recovering the reconstructed sparse vector into a clock skew signal through the over-complete dictionary, and generating a clock synchronization calibration instruction to realize data synchronization of the corresponding underwater node. According to the invention, the problems of high bandwidth occupation, low signal ratio and poor reconstruction time efficiency existing in the underwater network time synchronization technology can be solved.

The invention provides a deep-sea mining umbilical cable truncation model experiment device and method.The deep-sea mining umbilical cable truncation model experiment device is characterized in that motion control equipment is installed on the upper portion of a water tank, and the two ends of an umbilical cable model are fixedly connected with the motion control equipment and base position adjusting equipment in a one-to-one correspondence mode through hydrodynamic monitoring equipment; the configuration optical monitoring device is installed on the base position adjusting device, and the umbilical cable model is located in an ocean engineering pool. The motion control device is used for driving one end of the umbilical cable model to move. The hydrodynamic monitoring device is used for measuring the top tension and the bottom tension of the umbilical cable model. And optical monitoring equipment is configured to detect the overall displacement of the umbilical cable model. The base position adjusting device is used for adjusting the horizontal distance between the bottom end and the upper end of the umbilical cable model. The acquisition of the overall displacement and top and bottom tension of the umbilical cable model is facilitated, and data support is provided for deep-sea mining.

The invention relates to the technical field of ocean information, and discloses a digital test system and method for an underwater power source, and the system comprises an umbilical cable unit which is used for connecting a variable-frequency power supply and a motor; the generator is connected to the output end of the hydraulic system; the control platform is used for acquiring real-time data related to the underwater power source and simulating the overall system performance of the power source system under a constant load working condition and a load sudden change working condition; the method is also used for determining the adjustment mode of the umbilical cable unit in the simulation process. According to the invention, the overall system performance of the underwater power source under the load sudden change working condition can be tested and verified.

1. The name of the design product: submarine cable bending limiter. 2. The use of the design product: for the bending protection of submarine cable, deep sea umbilical cable, offshore oil pipeline. 3. The design points of the design product: in shape. 4. The picture or photo that can best show the design points: perspective view.

The application discloses a seabed garbage cleaning device, which comprises a garbage grabbing robot, an auxiliary storage and transportation robot, a garbage storage and transportation auxiliary ship, a signal cable and an umbilical cable; the auxiliary storage and transportation robot is connected with the garbage grabbing robot through the umbilical cable, forms a negative pressure, sucks the grabbed garbage from the garbage grabbing robot into the auxiliary storage and transportation robot, and then transfers the garbage into the garbage storage and transportation auxiliary ship; the garbage grabbing robot is connected with the garbage storage and transportation auxiliary ship through the signal cable; the garbage grabbing robot comprises an upper cavity, a lower cavity, a cavity mechanical claw and a robot propulsion system; the upper cavity and the lower cavity enclose a negative pressure cavity; the lower cavity is provided with the cavity mechanical claw and the robot propulsion system. The application further discloses a seabed garbage cleaning system which comprises the seabed garbage cleaning device and a controller. The application further discloses a seabed garbage cleaning method. The application can collect garbage in a way that can avoid stirring seabed silt as much as possible and reduce the influence of the collecting process on seabed organisms.

The invention discloses a one-time laying system for a wave glider and a collaborative operation method of the one-time laying system, and belongs to the technical field of ocean engineering. The system comprises a wave glider and a transferring and laying device. The moving, transporting and laying device is a detachable separation support, and an upper laying support and a lower moving support are connected through a positioning pin. The laying support is provided with a bearing face matched with the ship body, four hanging rings, a supporting rod for supporting the traction machine and a floating body arranged on the middle rear portion. The method comprises the steps that the device is moved to a deck to be locked; the positioning pins are taken down, and the whole support and the glider are vertically hoisted and laid through the four slings; when the glider is immersed in water, the bracket inclines forward by using the floating body, and the glider is automatically separated; and the mother ship leaves and recycles the laying bracket. Rapid, stable and safe one-time laying of the wave glider under the complex sea condition is achieved, the risk of graded laying and umbilical cable winding are avoided, and the operation efficiency and safety are remarkably improved.

The invention discloses a radial well cluster mining system and method for deep sea natural gas hydrate and shallow gas. The small and medium-sized workboat is sequentially connected and fixed with the seabed drilling machine and the multi-well guide suction anchor, and the small and medium-sized workboat controls the seabed drilling machine through an umbilical cable to complete drilling and arrangement of a vertical well and an inclined well of drilling and fixing integrated hydrate in the multi-well guide suction anchor; the vertical well and the inclined well are connected with a multi-pipe Christmas tree arranged on the multi-well guide suction anchor, and then the multi-pipe Christmas tree is connected with a mining and transportation pipeline through a seabed supercharging electric submersible pump to form a natural gas hydrate one-machine multi-well type radial well cluster efficient mining and transportation path. According to the hydrate anchor base radial well cluster mining system, the mining range is greatly enlarged, the mining efficiency is improved, integrated drilling and one-machine multi-well arrangement are achieved through the seabed drilling machine, the operation cost is remarkably reduced, the drilling and mining efficiency is improved, and the integrated operation process of drilling, well cementation, well completion and mining of the deep sea hydrate reservoir is achieved.

The invention discloses a hanging type unmanned aerial vehicle hangar and a using method thereof.The hanging type unmanned aerial vehicle hangar comprises a movable bin and a hanging arm mechanism installed on the movable bin, a retractable umbilical cable is arranged on the hanging arm mechanism, a protective door is installed at the top of the movable bin, and a holding device used for clamping and positioning an unmanned aerial vehicle is installed in the movable bin and located below the protective door; a centering mechanism is installed in the holding device, the centering mechanism is matched with the unmanned aerial vehicle to guide the unmanned aerial vehicle to land into the holding device, a power supply unit and a control unit are further installed in the moving bin, the power supply unit is electrically connected with the control unit, and the control unit is electrically connected with the suspension arm mechanism, the umbilical cable and the holding device. And a docking mechanism connected with the unmanned aerial vehicle is mounted at the tail end of the umbilical cable. The unmanned aerial vehicle hangar can meet the requirement for detection in a deep well or a deep hole of an unmanned aerial vehicle, the unmanned aerial vehicle can smoothly enter the deep well or the deep hole for operation, and smooth recovery can be guaranteed.

The invention relates to an umbilical cable terminal, in particular to an underwater installation method for an oversized umbilical cable terminal, which comprises the following steps: S1, carrying out operation preparation for laying the tail end on a deck; s2, a crane hoists the umbilical cable terminal UTA out of a cabin; s3, enabling the umbilical cable terminal UTA to pass through a cone pulley; s4, hanging the umbilical cable terminal UTA in the moon pool; s5, the tail end of the umbilical cable terminal UTA is lowered in place; according to the method, the umbilical cable terminal UTA is transferred out of a cabin by connecting the crane with the bending limiting device out-of-cabin rigging, and then cone pulley passing operation is carried out under the cooperation of the crane and the pull-back winch; and the load is transferred to the winch from the crane, the winch is connected with the hump rigging on the bending limiting device through the sling reserved on the UTA fixing piece, and finally UTA in-place is completed under the cooperation of the crane, the winch and a ship navigation bridge. The whole construction team is coordinated and matched, most work is completed mechanically through the steps, the operation risk is reduced, and operation can be completed efficiently.

The application relates to the technical field of underwater communication and signal processing, and provides an anti-interference method for underwater power carrier communication, which comprises the following steps: acquiring a power carrier time-frequency signal received by an SRM and synchronously collecting a control instruction stream, wherein the power carrier time-frequency signal is an OFDM signal; determining a state perception weight matrix based on a relay action time window, wherein the relay action time window is determined based on the control instruction stream; determining a joint optimization problem provided with a phase distortion correction operator based on the power carrier time-frequency signal, the state perception weight matrix and a frequency domain confidence matrix in combination with a double-weighted robust principal component analysis algorithm, wherein the frequency domain confidence matrix is determined based on the high-frequency attenuation characteristics of an underwater umbilical cable; and solving the joint optimization problem based on a linearized alternating direction multiplier method to determine a target power carrier signal. The application solves the problem that reliable communication cannot be realized under the double constraints of strong interference and severe phase jitter in the related art.

The application discloses a wave compensation system and method for umbilical cable deployment of engineering ships, and belongs to the technical field of umbilical cable tension control. The system comprises a winch mechanism, a cable arrangement mechanism, a compensation mechanism and a detection and control unit. The compensation mechanism adopts a double-layer parallelogram winding structure composed of four pulleys, and the path length of the umbilical cable is changed by driving the pulley frame to move through a linear composite oil cylinder. The system adopts a hybrid compensation strategy combining passive compensation and active compensation. The passive compensation utilizes the energy storage characteristics of the accumulator to achieve rapid response to high-frequency wave disturbance, and the active compensation realizes compensation accuracy correction through feedforward control and feedback control. The controller monitors the pulley displacement and controls the winch to wind or unwind the cable when the threshold is exceeded, thereby expanding the effective compensation range of the system. The cable arrangement mechanism and the winch are synchronized to ensure that the umbilical cable is uniformly arranged on the drum. The application realizes stable umbilical cable tension in complex sea conditions, and provides a more reasonable solution for underwater deployment.

The invention relates to the technical field of underwater robots, and discloses an underwater jacket detection system and method based on a flexible robot, the flexible robot is formed by alternately connecting a plurality of rigid modules and a plurality of flexible modules in series, and the shuttling flexibility of the flexible robot in gaps of complex components of the underwater jacket is effectively improved. Furthermore, the optical image, the acoustic image and the ultrasonic signal are synchronously acquired through the detection module, and the preprocessing of the control module and the transmission of the communication module are combined, so that the problem of insufficient information of the traditional single detection mode is avoided. Furthermore, the shore-based control platform generates an inspection path based on the target CAD model and controls the flexible robot to move, and receives processing data and generates a detection report, so that automation and precision of the detection process are realized, comprehensiveness and efficiency of underwater jacket detection are improved, and the detection efficiency of the underwater jacket is improved. The problem that a traditional ROV is limited by an umbilical cable and is difficult to move between narrow jacket structures for multi-angle fine detection is solved.

The application discloses a kind of electric transducer deep water working implementation methods, by electric transducer, pressure balancing device, gas-electric hybrid umbilical cable Deepwater electric transducer sound simulator system is formed, when working, electric transducer cooperates with pressure balancing device to realize the complete balance of internal and external pressure of electric transducer, gas-electric hybrid umbilical cable is the transmission medium of gas-electric signal;Deepwater electric transducer sound simulator system before working sets the pressure difference upper and lower limit value of pressure balancing device to carry out pressure charging and pressure releasing operation;Electric transducer is by exciter, radiating cover plate, shell, decoupling sealing ring, balance rubber capsule is formed, and internal air pressure sensor and external water pressure sensor are installed on the electric transducer.The application cooperates with pressure balancing device and balance rubber capsule, and working water depth can reach the pressure limit of rubber capsule material itself, can realize the complete balance of internal and external pressure of electric transducer under deep water condition, improves the working water depth of electric transducer, with wide use prospect.

The double-acting hydraulic actuator comprises a compact type cylinder body, a piston rack, a gear transmission shaft, a pressure balancer, an integrated hydraulic pipeline and a valve position feedback indicator, the integrated hydraulic pipeline is arranged in the middle of the side face of the compact type cylinder body, and the two ends of the integrated hydraulic pipeline are connected to the two sides of the compact type cylinder body respectively. The piston rack is movably arranged in the compact type cylinder body, the gear transmission shaft is rotationally arranged in the compact type cylinder body and connected to the piston rack in a meshed mode, and the pressure sensor is connected to the side face, away from the integrated hydraulic pipeline, of the compact type cylinder body. The valve position feedback indicator is arranged at the end, close to the pressure balancer, of the top of the compact cylinder body. The deep sea actuator can meet the requirements of deep sea oil and gas field development and scientific research in China at present. The existing design of the hydraulic actuator can meet the engineering working condition of 3000-meter water depth underwater. The underwater integrated controller can be used for operation, and an umbilical cable can also be used for controlling the deep sea valve from the water.

The application relates to an underwater special operation robot and a docking method thereof, wherein the underwater special operation robot body comprises a main buoyancy shell, a body main support, an umbilical cable, a power propulsion system, a combined navigation system, a light camera system, a capturing locking device and a wet plug device; the power propulsion system is used for driving the underwater special operation robot body to move; the combined navigation system is used for accurately positioning and navigating the underwater special operation robot; the light camera system is used for identifying and extracting an unmanned underwater vehicle (AUV) end docking device; and the capturing locking device is used for locking connection with the unmanned underwater vehicle (AUV) end docking device. After the underwater special operation robot is docked with the unmanned underwater vehicle (AUV), energy supply and information transmission are completed, so that the unmanned underwater vehicle (AUV) can continuously perform underwater operation, operation efficiency caused by frequent rising is avoided, and safety risks possibly occurring in the process of recycling the unmanned underwater vehicle (AUV) are reduced.

The invention discloses an umbilical cable sealing end cover component and a submarine optical cable connector box, which are used for solving the problems of difficult assembly, poor sealing performance and insufficient pressure resistance of connection of an umbilical cable and an oil-filled cable in a deep sea environment. The end cover component comprises a connecting sleeve with a front cavity and a rear cavity, the rear cavity is provided with a tensile fixing assembly, axial stress is dispersed through slope self-locking, and a center pipe sealing assembly is installed to achieve high-pressure sealing through conical thread pressing. A two-stage outer sheath sealing assembly is arranged in the front cavity and is fixed by a sealing nut or a pressing piece; the optical fiber passes through the support to protect the steel pipe fiber outlet. According to the connector box, the outer cylinder body and the end cover part are rapidly assembled through the locking part, and the connector box is matched with an oil-filled cable end cover sealing part, so that multi-layer compression-resistant sealing, optimized stress distribution and stable optical signal transmission are realized.

The invention relates to the technical field of strength tensile tests, and discloses an umbilical cable and bearing head connection strength tensile test device which comprises a base, a top support, two jacking oil cylinders and a booster pump. The bottom of the base is formed by welding and splicing multiple sections of H-shaped steel, stand columns are fixedly connected to the positions, close to the two sides, of the top end of the base, the top support applies upward tensile force to the bearing head through the first lifting lug and the tension sensor, the armored umbilical cable in the to-be-detected assembly is subjected to axial tensile force accordingly, and meanwhile the connecting axis of the second lifting lug and the tension sensor is connected with the bearing head. The first lifting lug and the connecting axis of the to-be-detected assembly are collinear, the stability of the overall structure of the test device and the coaxiality in the tensile force direction are guaranteed, detection errors caused by device shaking or stress deviation in the test process are avoided, and structural support is provided for safe and stable development of the tensile test.

The utility model relates to umbilical cable technical field discloses a kind of umbilical cable clamping devices, including fixed plate, two fixed plates are provided, one of the two fixed plates is fixedly connected with servo motor at front end, the end of the mutual approach of two fixed plates is provided with pivot, the output end of the rear end of servo motor is connected with the front end of pivot through inside of one of fixed plate, the rear end of pivot is fixedly connected with cable reel front end.The utility model starts servo motor, the output end of servo motor starts rotation, the output end of the rear end of servo motor is connected with the front end of pivot through inside of one of fixed plate, so the rotation power of servo motor will be transferred to pivot, the rear end of pivot is fixedly connected with cable reel front end, the rotation of pivot will drive cable reel to rotate.Cable reel inner wall is connected with the transmission of the right end of clamping band, with the rotation of cable reel, clamping band will be driven to start movement, clamping band left end is fixed on the surface of cable reel column.

The invention discloses a deep sea operation simulation method, device and system, and relates to the technical field of ocean engineering and deep sea operation system dynamics simulation. The method comprises the following steps: acquiring first motion information of a simulated deep sea operation platform, second motion information of a simulated underwater operation device, environmental load information, dynamic positioning load information and umbilical cable load information; sending the first motion information, the second motion information, the environment load information, the dynamic positioning load information and the umbilical cable load information into a preset simulation model for simulation calculation, and outputting third motion information corresponding to the deep sea operation platform and the underwater operation device, the first motion information, the second motion information, the environment load information, the dynamic positioning load information and the umbilical cable load information are obtained, all information parameters are sent to a preset simulation model for simulation calculation, third motion information is output, and evaluation analysis is conducted through the third motion information; therefore, the collaborative response of the deep sea operation system is analyzed.

The invention relates to the technical field of deepwater oil gas and combustible ice exploitation testing, and discloses an underwater test tree and check valve electro-hydraulic compound control system and method. The system comprises a ground control terminal, an umbilical cable transmission system, a ground emergency control system, an underwater energy accumulator system, an actuator control system, a pressure compensation control system, a check valve and an underwater test tree. An instruction is sent through a ground control terminal, an electromagnetic reversing valve is controlled through an umbilical cable, then a plurality of hydraulic control reversing valves are controlled, high-pressure hydraulic oil of an underwater energy accumulator set is input into an underwater test tree and a check valve, and a ground emergency control system can directly control the underwater test tree to complete a release task through the hydraulic control reversing valves. Electro-hydraulic compound control of the underwater test tree and the check valve by the ground is realized, the problems of low system response speed, disordered control circuit and poor safety are effectively solved, the system has the characteristics of high reliability, high fault resistance, convenience in maintenance and the like, and the safety of deepwater test operation is guaranteed.

The application relates to a high-precision underwater concrete interlocking row launching tool, which comprises a central module, a planetary module and a power supply and control module. The central module is connected with multiple planetary modules through a planetary frame connecting arm. The power, communication and control systems of the planetary module are collected to the power and control nacelle of the central module through a special bus. The central module is connected with the power supply and control module through a umbilical cable to obtain power supply and communication control, thereby forming the high-precision underwater concrete interlocking row launching tool. The application can solve the problems that the protection materials such as the concrete interlocking row for submarine cable protection are difficult to be accurately positioned during the lifting and sinking process in water, and the sinking position is easily deviated by factors such as sea current.