578 results about "Cable tension" patented technology

The invention provides a ship automatic mooring control strategy optimization method and system based on multi-source data, and the method comprises the steps: firstly obtaining multi-source perception data of a target ship, carrying out the preprocessing of the data, forming a standard data set, extracting dynamic feature parameters from the preprocessed data through a sliding time window, and obtaining a target ship automatic mooring control strategy; comprising ship dynamic offset, environment interference intensity and mooring energy consumption distribution parameters. A dynamic optimization strategy generation model is called, and an optimization parameter set is generated according to the difference between the ship dynamic offset and the safety threshold value, the matching degree between the environment interference and the interference threshold value and the deviation between the mooring energy consumption and the optimization target. According to the set, parameters of an executing mechanism of the automatic ship mooring control system are dynamically adjusted, a control instruction is generated, meanwhile, the ship attitude offset and the cable tension fluctuation amount during mooring are monitored in real time, finally, feedback correction is conducted on the optimized parameter set based on the monitoring result, and a corrected control strategy is obtained. Therefore, the continuous optimization of the automatic mooring control strategy of the ship is realized, and the safety and efficiency of mooring are effectively improved.

The invention relates to a water-drop-shaped captive balloon high-altitude wind power generation system. The water-drop-shaped captive balloon and kite cloth carried by the water-drop-shaped captive balloon are used for generating lift force to drive a ground power generator to generate power. The lift force generation mechanism is that the windward side and the wind resistance are increased by adjusting the pitch angles of the aerostat and the bearing kite cloth, and the wind resistance is converted into cable tension to drive power generation. A V-shaped pulley expansion mode is adopted to uniformly distribute tension of main and auxiliary cables, so that bag damage caused by non-uniform stress in a posture adjusting process is avoided; the captive balloon is provided with an attitude controller, communicates with a ground control system through wireless data transmission, adjusts the take-up and pay-off speed of a main cable and an auxiliary cable to control the pitching angle to achieve lift force control, and greatly improves the power generation efficiency. The main cable power output winch drives a generator to generate electricity through a one-way bearing, and the input end is connected with a motor through a clutch to achieve cable recovery. The backpack kite cloth can be controlled to open and close through a small winch to increase and decrease wind resistance; lift force and wind resistance control is optimized, the power generation efficiency is improved, safety is enhanced, operation is simplified, and maintenance is convenient.

The invention discloses a special-shaped steel pipe concrete pipe section hoisting dynamic pose control method, relates to the technical field of ocean engineering underwater pipeline installation, and mainly solves the problems of insufficient dynamic response and low space pose control precision when a special-shaped pipe section is hoisted in a complex water flow environment. The method comprises the steps that pipe section space pose design parameters are obtained, the pitch angle and the rolling angle of a pipe section are monitored in real time through an inclination angle sensor set, disturbance torque generated by real-time water flow force is calculated, sling length compensation amount is generated, and the take-up and pay-off speed of a chain block at each lifting point is independently adjusted; and meanwhile, adjusting mooring ropes moored on the two sides are pulled to control the horizontal rotation angle of the pipe section, the height of a lifting hook and tension of the mooring ropes are fed back and adjusted in cooperation with a floating crane positioning system, and finally accurate underwater in-position of the pipe section to the preset position of the seabed is achieved. The device is mainly used for hoisting and sinking operation of the special-shaped concrete filled steel tube section in the marine environment, water flow interference can be effectively resisted, and accurate butt joint and installation quality of a pipe section connector are guaranteed.

The invention provides an anomaly detection method and system based on Bi-LSTM and ST-GCN, and the method comprises the steps: constructing a space-time joint modeling frame for bridge health monitoring through the staged fusion of a bidirectional long-short time memory neural network (Bi-LSTM) and a space-time diagram convolutional neural network (ST-GCN) based on a point-line-plane three-stage detection mechanism for a tied arch bridge; the method comprises the following steps: extracting time sequence characteristics of a cable force meter through Bi-LSTM, identifying a single-sensor hardware fault, separating shared characteristics and sensor private characteristics from multi-sensor time sequence data, and enhancing sensor identity distinction degree and inhibiting interference factors such as temperature through decoupling comparison loss; the sensor private features are used as node features in an ST-GCN neural network, spatial positions among different sensors are identified by adopting a time attention mechanism through ST-GCN, spatial topological association and long-term time sequence dependence among the sensors are captured, and connection probability anomaly under a static adjacency relation is analyzed; and finally, the identified spatial position is analyzed and self-adaptive early warning is carried out, and a multi-node collaborative abnormal region is positioned through a connected domain algorithm, so that local damage and global abnormality are accurately positioned. The function of monitoring whether the bridge structure is damaged or not is achieved. Compared with a traditional machine learning database, more experimental parameters and a larger experimental data set are selected; the defect of low prediction precision of traditional machine learning is avoided, and the method has very high accuracy and reliability.

The invention discloses a method and a system for rapidly measuring cable force of a stay cable based on a digital image correlation method. The method comprises the following steps: acquiring video data of the stay cable; a line segment measurement calibration method is adopted, stay cable texture points serve as feature points, and a feature point selection mechanism is established; establishing a pixel-physical space coordinate mapping model based on a redundant observation method; model parameters are calculated through a collaborative calibration method; performing displacement measurement based on a digital image correlation method; establishing a double-layer feature extraction mechanism to complete local and global feature extraction; weight distribution of the local features and the global features is dynamically adjusted through a weight adaptive fusion strategy; and finally, establishing a double-layer tracking and failure recovery mechanism to complete hierarchical collaboration of coarse-grained global tracking and fine-grained local tracking. And carrying out fast Fourier transform on the dynamic displacement measurement result, and calculating to obtain the cable force. And reliable technical support is provided for non-contact accurate calculation and measurement of the cable force.

The invention provides a ship offshore operation decision-making method, electronic equipment, a medium and a product. The ship offshore operation decision-making method comprises the steps of obtaining operation data of a ship; the operation data are input into a decision model, ship operation prediction information output by the decision model is obtained, a ship operation strategy is generated according to the ship operation prediction information, the decision model comprises a convolutional neural network, a recurrent neural network and an attention module which are connected in sequence, and hyper-parameters of the convolutional neural network are determined based on a preset optimization algorithm; the ship operation strategy comprises at least one of an operation time window, cable tension and posture adjustment. According to the method, the ship operation information in the future time period can be accurately predicted, so that targeted adaptive decision suggestions are quickly provided, the ship can flexibly deal with various complex and sudden offshore operation conditions, the decision efficiency is high, the decision is not influenced by personal experience and feeling, the occurrence of wrong decisions is effectively reduced, and the operation safety is improved.

The invention discloses a state monitoring method for a bridge structure, and belongs to the technical field of bridge measurement and monitoring, and the method comprises the steps: obtaining an original data set of the inclination angle of a bridge main tower and the tension of an inhaul cable, analyzing a signal time feature representation factor, and carrying out the linear interpolation adjustment information judgment; and based on the original data set, analyzing an inhaul cable tension update value, then analyzing an inhaul cable tension residual error and an interpolation adjustment effect label, and carrying out signal reconstruction effect judgment. According to the method, the bridge structure can be continuously monitored, linear interpolation adjustment information is carried out by analyzing signal time characteristic characterization factors, whether adjustment is carried out or not is judged, calculation power waste is avoided, and the inhaul cable tension is aligned with a main tower inclination timestamp by analyzing inhaul cable tension update values through linear interpolation adjustment. A stay cable tension update value is analyzed to eliminate a cross-sensor clock asynchronous error, signals are classified by analyzing a frequency coherence factor, mutual interference of different frequency components in broadband signals is avoided through classification processing, and the structural health monitoring precision is remarkably improved.

The invention relates to the technical field of bridge engineering construction, in particular to a bridge girder hoisting system and a positioning method.The system collects position information in real time through Beidou positioning terminals of all hoisting points on a hoisting frame, cable force is monitored through pin shaft type force sensors, and after the position information is processed through a Beidou differential service system and a control center, the cable force is transmitted to a main girder hoisting system; and the winch is regulated and controlled to act and early warn abnormity. The positioning method comprises the steps of equipment installation, data acquisition, coordinate calculation, data processing and intelligent regulation and control, millimeter-level positioning achieved through Beidou difference, and lifting point height difference control through double-cable force monitoring and closed-loop control. The invention aims to solve the problems of unbalanced components and potential safety hazards caused by low measurement precision, asynchronous hoisting point displacement and large cable force monitoring error in traditional bridge girder hoisting.

The invention provides a stay cable force recognition method based on frequency multiplication relation global optimization, and the method comprises the steps: recognizing a plurality of candidate frequencies through spectrum analysis based on stay cable vibration acceleration data collected in real time; the candidate frequency set is input into a fundamental frequency solving model, the sum of squares of frequency multiplication rounding deviation of each frequency and an approximate fundamental frequency is minimized through an optimization algorithm, and the approximate fundamental frequency is an optimization parameter for global search of the optimization algorithm; and determining a final fundamental frequency according to the solved approximate fundamental frequency, and outputting the cable force.

The invention discloses a polyethylene fiber cable tension test tool, and relates to the technical field of cable tests, the polyethylene fiber cable tension test tool comprises a base, the upper end of the base is fixedly provided with a bottom plate, one side of the bottom plate is fixedly provided with a telescopic piece, and the end part of the telescopic piece is fixedly provided with an adjusting assembly; the tension test is performed on the cable at different angles through the adjusting assembly; according to the tension test tool for the polyethylene fiber cable, when the swing block is stressed to rotate, the push plate rotationally mounted at the end part of the swing block is synchronously driven to move, a movable groove is formed in the end part of the movable plate, and the inner wall of the movable groove is in sliding connection with the outer surface of the lower end of the limiting block; and the outer surface of the positioning plate is in sliding connection with one side of the limiting block, so that when the swing block rotates, the positioning plate and the limiting block are driven to move on the inner wall of the movable groove until the positioning plate reaches the optimal position.

The invention relates to a fault identification and fault-tolerant control device for controlling the cable allowance of an optical cable laying ship. The device comprises a fast fault identification module, a slow fault confirmation module and a fault-tolerant control instruction output unit. The rapid fault identification module predicts and generates candidate fault states based on the cable tension, the second derivative of the water depth, the model residual abrupt change and the tension trend; the low-speed fault confirmation module further performs stability confirmation on candidate fault states through filtering trend judgment, combined information entropy analysis and a multi-cycle consistency voting mechanism; the fault-tolerant control instruction output unit comprises a multi-model control subunit, a sliding mode control subunit and a finite time domain prediction subunit, and can fuse three types of control strategies to generate a fault-tolerant adjustment instruction after a fault is confirmed, thereby achieving the dynamic optimization control of the speed of the cable winch. According to the method, the cable allowance can be accurately controlled under complex sea conditions and topographic conditions, and the method has the capability of rapidly identifying abnormal states and dynamic fault tolerance.

The invention provides a stay cable tensioning process simulation optimization design method and system based on finite element analysis, and the method comprises the steps: building a finite element model of a tower beam structure of a target cable-stayed bridge; the target cable-stayed bridge is a cable-stayed bridge constructed by a support method and provided with asymmetric leaning towers; based on the finite element model, stay cable tension process simulation of the tower beam structure under different jump tension sequences is carried out, and time-varying mechanical response of the tower beam consolidation system is obtained; and according to the time-varying mechanical response, the cable force effectiveness and the tower beam deformation continuity are taken as targets, a tension sequence is optimized through a multi-point coincidence approximation strategy, and simulation design of automatic iterative optimization is carried out. According to the stay cable tensioning process simulation optimization design method and system based on finite element analysis, the optimal jump tension sequence is solved in the simulation model, the evolution amplitude of the stress behavior of the tower beam in the stay cable tensioning bridge forming process is reduced, the evolution smoothness of the stress behavior is improved, and the phenomena of hard sudden change, discontinuity and even internal damage are prevented.

The invention discloses a mountain freight cableway bearing cable tension intelligent regulation and control construction method and system, and relates to the technical field of intelligent regulation and control construction, and the method comprises the following steps: constructing a propagation chain model of tension disturbance in a space structure based on first data; according to the second data of each support node, dynamic response characteristics of tension disturbance of the bearing cable are extracted, and a feedback mapping model of the support nodes is established; simulating tension disturbance at the control node, and dividing the boundary of the regulation and control region by combining the characteristics of each region in the propagation chain model; according to the regulation and control region boundary, constructing a disturbance prediction model, and outputting tension disturbance trend prediction of each regulation and control region; and generating a regulation and control strategy based on disturbance trend prediction, and feeding back a regulation and control result in real time. According to the method, by establishing a multi-node tension disturbance propagation modeling, regional feature division and linkage regulation mechanism, the problems that accurate response of cableway tension regulation in a complex mountain environment is difficult to achieve, and disturbance risks are prone to cross-regional diffusion are solved.

The invention discloses a pulling and lifting cable frequency detection and cable force measurement method and system based on a millimeter wave radar, and belongs to the field of pulling and lifting cable force measurement. The method comprises the steps that vibration signals are collected through the millimeter wave radar to obtain complex data streams, time-frequency analysis is conducted on the complex data streams, and an interference model is established; the method comprises the following steps: reconstructing a noise-reduced vibration signal by adopting adaptive filtering, extracting candidate vibration frequencies through power spectral density estimation and spectral peak detection, calculating corresponding stability scores, and obtaining a first verification factor used for evaluating wind disturbance and a second verification factor used for evaluating vibration frequency deviation; according to the method, through multi-source sensing data fusion and self-adaptive signal processing, complex environment interference is effectively overcome, non-contact high-precision cable force measurement is achieved, and the method has the outstanding advantages of being high in anti-interference capacity, high in measurement reliability and the like.

The invention discloses a high-pile wharf with a novel composite foundation self-adaptive collaborative structure, and relates to the technical field of novel structures of high-pile wharfs, the high-pile wharf comprises a foundation stress assembly and a load transmission assembly, and the foundation stress assembly comprises a cross-shaped connecting structure disc. The construction efficiency is improved, the construction period is shortened, the field operation difficulty is reduced through modular prefabrication, the comprehensive cost is reduced, the service cycle of the structure is prolonged through composite material concrete, the maintenance cost is reduced, replacement is convenient and disassembly is easy when the annual limit is reached through modular design, and the monitoring system can early warn structural abnormity in advance; the prestress of the inhaul cable is adjusted in time, data drive inhaul cable tension is dynamically adjusted, the structural damage rate under extreme loads is reduced, the prefabrication proportion of the suction barrel and the cross-shaped structure is large, the site construction period is shortened, the manual inspection frequency is reduced through real-time monitoring, and the operation and maintenance cost is reduced.

The invention provides an umbrella-like floating platform and a tensioning method thereof. The umbrella-like floating platform and the tensioning method are used for solving the problem that an existing floating platform is large in weight and high in manufacturing cost. Comprising a platform ring and a pressed ring which are arranged in parallel, and a plurality of side stand column buoys are vertically connected between the platform ring and the pressed ring; a central stand column is further arranged at the central axis of the platform ring and the pressed ring, the bottom end of the central stand column extends out of the lower end face of the pressed ring, and a plurality of first inhaul cables and second inhaul cables are arranged between the pressed ring and the top end and the bottom end of the central stand column respectively. The first inhaul cables and the second inhaul cables are arranged in an annular array mode along the central axis of the central stand column. By arranging the inhaul cables, the inhaul cable tension steel structure is pressed, a tension-compression balanced prestressed cable net system is formed, under the condition that the stress performance of the whole structure is kept unchanged, the steel consumption of the platform is remarkably reduced, the purpose of the lightweight structure is achieved, and then the manufacturing cost is reduced.

The invention discloses a suspended pouring construction method for a hanging basket of a cable-stayed bridge, belongs to the technical field of bridge construction, and aims to solve the problems of beam section linear deviation caused by deformation of a hanging basket system and bridge tower deviation caused by asynchronous tensioning of stay cables. Performing a staged loading preloading test to obtain elastic deformation data, calculating an anti-arch value based on the data, and dynamically adjusting the elevation of a bottom die platform; a layered pouring process is combined with a real-time deformation monitoring and compensation mechanism, and the accumulated deformation amount is controlled; the longitudinal prestressed steel beams are tensioned in stages, the symmetric tensioning process of the stay cables is synchronously implemented, and bridge tower deviation closed-loop correction is achieved through combination of a displacement sensor and a pressure sensor; in the moving process of the hanging basket, the gravity center offset is monitored, the balance weight is adjusted, and after full-bridge closure, the cable force of the stay cable is optimized in a staged mode to the design state. The method is suitable for large-span cable-stayed bridge girder construction, and high-precision linear control and stable structure forming are achieved.

The invention relates to the technical field of tension anomaly detection, and discloses a railway contact network carrier cable tension anomaly detection system and method, and the system comprises a threshold value determination module which is configured to determine an initial anomaly threshold value of a carrier cable to be detected based on an analysis result; the judgment module is configured to judge whether to optimize the initial abnormal threshold value or not according to the temperature characteristic value; the optimization module is configured to determine an optimization coefficient of the initial abnormal threshold value based on the actual wind load and the actual train operation load and obtain an optimization abnormal threshold value; and the abnormity early warning module is configured to compare the real-time tension value with the optimized abnormity threshold value, perform early warning on the to-be-detected carrier cable according to a comparison result, and obtain an early warning level. According to the invention, real-time monitoring and early warning of the tension state of the carrier cable of the railway contact network can be realized, and the detection efficiency and accuracy are greatly improved.

The invention relates to a cable tension adjusting device on an electric power tower, and belongs to the technical field of overhead cable installation. The device comprises a tower frame and a cable, the front side and the rear side of the top of the tower frame are each provided with a first limiting wheel and a second limiting wheel which are used for supporting the cable in a rolling mode, and an automatic tension adjusting mechanism used for adjusting the tension of the cable is correspondingly arranged between each first limiting wheel and the corresponding second limiting wheel. The automatic tension adjusting mechanism comprises a sliding plate, a fixing plate, a sliding rail, a pulley A, a traction wheel, a pulley B, a pulley C, a pulley D and a cable, a pulley groove of the traction wheel is clamped above the cable, and the vertical pressure applied to the cable by the traction wheel is larger than the gravity of the counterweight assembly through a pulley block formed by the pulley A, the pulley B, the pulley C and the pulley D. The device is simple and reliable in structure and easier to implement.

The invention relates to the technical field of aluminum alloy conductor stranding processing, in particular to an aluminum alloy conductor stranding pressing device based on cable production and manufacturing, which comprises a machine base, a rack and a loading tray are fixedly mounted at the top of the machine base, and a plurality of mounting racks are fixedly mounted on the side wall of the loading tray in an annular array by taking the center of the loading tray as a circle center; a winding roll is mounted on the inner side of the end, close to the loading tray, of the mounting frame, a tightness adjusting and controlling assembly is arranged at the end, away from the loading tray, of the mounting frame and comprises a transverse rail and a sliding frame, the transverse rail is fixed to the end of the mounting frame, and the sliding frame is in sliding connection with the transverse rail through an I-shaped sliding block fixedly connected to the bottom; compared with the prior art, the cable tension is compensated in real time and the surface of the cable is pressed in multiple directions through the synergistic effect of dynamic tensioning regulation and control and the multi-direction dynamic pressing assembly, so that the structural quality of the cable is improved, and the qualified rate of finished products is increased.

The invention provides a cable force detection method, device and system for a cable bearing bridge, and relates to the technical field of bridge monitoring. The method comprises the following steps: acquiring an echo signal of an inhaul cable in a to-be-detected bridge; constructing a corresponding radar cube matrix according to the echo signal; peak value searching is carried out on the signal amplitude of the signal data under the distance dimension in the radar cube matrix, the distance index of each peak value point on the distance dimension is determined, and the distance index is used as the distance index corresponding to each inhaul cable; based on the distance index and the radar cube matrix, incident angle information corresponding to each inhaul cable is determined; and based on the distance index and the incident angle information corresponding to each inhaul cable, determining an enhanced signal corresponding to each inhaul cable by using a beam forming technology. According to the invention, the signal data of each inhaul cable can be effectively separated, the signal data precision of each inhaul cable is improved, and the cable force detection precision is further improved.

The invention relates to the technical field of steel cable tension detection, in particular to steel cable tension detection equipment for lifting equipment. The device comprises a device body, an unwinding roller and a winding roller are rotatably arranged in a roller supporting structure, a tension providing mechanism is hung on the surface of a steel cable between a first vertical rod group and a second vertical rod group, the tension providing mechanism can slide on the surface of the steel cable along with winding of the steel cable, and a lifting tension test is carried out on the part, passing through the position, of the steel cable. Side supporting assemblies are installed in the first vertical rod set and the second vertical rod set. When a steel cable is tested, the steel cable needs to sequentially penetrate through the two sliding holes, the sliding hole close to the unwinding roller can detect surface flaws of the steel cable in advance, the sliding hole close to the winding roller can judge the state of the steel cable subjected to a tension test, and a driving motor sensing device of the driving set drives the winding roller to rotate when the steel cable is clamped in the sliding hole close to the winding roller due to unqualified tension. And the driving motor can be automatically stopped, so that workers can conveniently and timely perceive problems and rapidly check the problems.

The present invention belongs to the technical field of cable tension testing, and specifically discloses a cable tension testing device and method for cable processing, including a cable tension testing machine, a lateral tension component is provided at the rear side of the cable tension testing machine, two groups of shielding components are provided at the front side of the lateral tension component, and the lateral tension component includes a mounting frame fixedly installed at the rear side of the cable tension testing machine, an electric slide is fixedly installed at the front end of the mounting frame, a platform is provided on the electric slide, four groups of fixed sleeves are fixedly installed at the front end of the platform, movable plates are slidably provided on the inner sides of the four groups of fixed sleeves, and two groups of fixed rods are fixedly provided between the front ends of the four groups of movable plates, which are close to the opposite groups on both sides. The present invention simulates the dancing of the wire caused by wind force through the coordinated use of the whole, cooperates with the first motor to realize periodic torsion and stretching, and combines the stress scenarios to break through the limitations of traditional unidirectional tension testing.

The invention discloses a submarine cable laying tension control method based on environment judgment, and the method comprises the following steps for each adjustment time slot t: (1) obtaining the ship speed v (t) of a cable laying ship at the current moment, the laying operation condition parameters of the cable laying ship, and the environment parameters; (2) predicting the target tension allowance Ts of the laying operation at the current moment by using the regression model; (3) target tension T (t + 1) is calculated, the target tension is the difference between the maximum tension Tmax capable of being borne by the cable and the target tension allowance Ts (t + 1), and the target ship speed V (t + 1) of the cable laying ship is obtained according to relation mapping of the cable tension and the ship speed; and (4) controlling the rotating speed of the motor by adopting a feedback regulation algorithm, and updating the target cable laying speed Vc (t + 1) at the next moment. The tension allowance is determined according to expert experience by adopting a regression algorithm, the cable laying tension is adaptively adjusted according to different submarine topographies, ocean current speeds and other factors, it is guaranteed that the tension of loose filling is appropriate, the sheath abrasion risk is reduced, and the submarine cable laying reliability is guaranteed.

The invention discloses a system-level coupling modeling method, system, equipment and medium for a multi-wind-wheel multi-tower-drum floating type wind turbine generator set, and relates to the field of simulation modeling, and the method comprises the steps that parameter information of the multi-wind-wheel multi-tower-drum floating type wind turbine generator set is obtained, and a multi-system structural dynamics model is obtained based on the parameter information of the multi-wind-wheel multi-tower-drum floating type wind turbine generator set; the unsteady aerodynamic model, the hydrodynamic model and the mooring structure dynamic model are used for outputting aerodynamic loads, hydrodynamic loads and mooring cable tension, the aerodynamic loads, the hydrodynamic loads and the mooring cable tension are fed back to the multi-system structure dynamic model, and based on a Lagrange framework, the models are subjected to joint simulation operation through a joint simulation interface, so that the mooring cable tension is obtained. And the multi-wind-wheel and multi-tower-drum floating type wind turbine generator is designed. According to the method, a complete system dynamics model can be established, and complete machine level rapid evaluation and engineering iteration under multiple working conditions can be supported.

The invention relates to the technical field of cable tension detection, in particular to a tension detection device and detection method for a power cable, and the method comprises the steps: obtaining tension data and rotating speed data in a cable conveying process; dividing the whole data acquisition time into a plurality of time periods, and obtaining a comprehensive influence coefficient of each time period according to the fluctuation characteristic and the periodic characteristic of the tension data of each time period, the correlation degree of the change trend of the rotating speed data and the tension abnormal characteristic of each time period, and the rule degree of the fluctuation characteristic of the tension data of each time period; and predicting the comprehensive influence coefficient of the next time period of each time period, obtaining the tension state abnormal value of each time period according to the difference between the obtained predicted value and the comprehensive influence coefficient of the adjacent time period, and further judging whether the tension state of the cable in each time period is abnormal or not. By analyzing the characteristics of the tension data of the cable under the influence of drum mechanical friction and ship swing, the tension state of the cable can be more accurately judged.

A releasable and re-seat-able locking electrical wireline wet connection associated with sections of wireline used in an HDD drill string in a borehole. Said connection comprising a male member on one end of the wireline section having an externally exposed electrical contact receptacle that connects to a subsequent wireline section by mating and locking on to the female member. Mating is achieved by a simple “J”-shaped set of latching features, a second axis having a conductive part extending into a hollow body whereby the electrical contact element is fastened to the wireline coaxial center conductor for electrical continuity and with the wireline's protective armor also physically secured inside the hollow body for extreme mechanical and electrical integrity during the HDD drilling process. Reliable electrical connections are established and maintained notwithstanding wet and contaminated contacts and continuous rotation and wireline tension.

The invention provides a submarine cable dynamic laying path control method based on towing cable tension and attitude feedback, and the method comprises the steps: carrying out the tension data collection of a towing cable of a submarine cable laying ship through a first tension measurement mode, and generating a first tension measurement result; dynamically optimizing the towing cable tension data in the first tension measurement result based on a second tension measurement mode to obtain a second tension measurement result; and adjusting the path points in the second tension measurement result in combination with attitude feedback and a third tension measurement mode to generate a final submarine cable laying path control result. According to the method, dynamic control over the submarine cable laying path is achieved through multi-stage tension measurement and attitude feedback, and laying precision and stability are improved.

The invention discloses a cutter suction dredger height limit section multi-anchor cable tension self-adaptive regulation and control system, which relates to the technical field of intelligent ocean engineering equipment, and comprises an acquisition module for acquiring ship environment situation data, carrying out timestamp alignment, noise filtering and coordinate system unification, generating a multi-modal environment data packet, a model construction module, a control module and a control module, a three-dimensional dynamic situation field model is constructed by utilizing a potential field modeling engine based on a multi-modal environment data packet, a potential field distribution matrix is generated through a finite difference method, meanwhile, a partial derivative of the potential field distribution matrix is calculated by utilizing central difference, a three-dimensional potential field gradient tensor is generated, and a path planning module is used for planning a path on the basis of the three-dimensional potential field gradient tensor. Candidate path nodes are iteratively generated by adopting an RRT algorithm, smoothing processing is carried out through a cubic spline interpolation algorithm, an initial navigation path is generated, and the tension of the anchor cable can be dynamically adjusted according to actual environment changes by constructing a three-dimensional dynamic situation field model, so that the stability and the safety in the operation process are improved.

The invention, which belongs to the technical field of intelligent control of power construction equipment, discloses an electrically-controlled bidirectional braking paying-off tackle control system comprising a tackle main body, a sensor module, a controller module and an execution driving module. The controller module comprises a state identification unit which constructs an operation state vector based on the cable tension and the pulley speed, integrates an improved fusion tension estimation model, and performs weighted fusion with a current observation value in combination with a historical tension trend, thereby improving the stability and robustness of tension estimation. And the control optimization solving unit establishes a combined control strategy of a performance target and a security constraint, switches a control path between normal and abnormal states according to the current state, and generates acceleration control input to adjust the state of the pulley so as to realize closed-loop control. The method has the capabilities of dynamic identification, intelligent judgment and self-adaptive control, is suitable for paying-off working conditions with remarkable tension fluctuation and high safety requirements, and improves the control precision of tackle operation and the system stability.