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2707results about "Safety gear" patented technology
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Ton bag hoisting unmanned control system based on binocular vision camera and laser radar
The invention relates to the technical field of machine vision and perception, in particular to a ton bag lifting unmanned control system based on a binocular vision camera and a laser radar, which comprises an intelligent control unit, a lifting appliance executing mechanism, a sensing unit and a special ton bag, the sensing unit comprises a binocular vision camera and a laser radar and is used for collecting depth vision and three-dimensional point cloud information of an operation area; the intelligent control unit fuses multi-source data, locates a lifting lug by improving a weighted multi-feature fusion algorithm, plans a safety path and generates a staged instruction; the lifting appliance executing mechanism lifts and pulls a collapsed lifting lug through an electromagnetic adsorption module, a mechanical gripper module clamps the lifting lug, and reliable operation is achieved in cooperation with a verification mechanism; the special ton bag is matched with a sensing and executing module through a high-contrast color and a pre-embedded metal piece. The full-process unmanned operation is achieved, the robustness and operation safety of the complex environment are improved, and the ton bag hoisting requirements of multiple industries are met.
Owner:ZIJIN ZHIXIN (XIAMEN) TECH CO LTD
Support-free hoisting installation system applied to large-span arched steel corrugated plate
The invention relates to the technical field of steel corrugated plate hoisting, and discloses an unsupported hoisting installation system applied to a large-span arched steel corrugated plate, which comprises a lifting hook, auxiliary mechanisms are symmetrically connected below the lifting hook, and the auxiliary mechanisms are used for being connected with haunches of the steel corrugated plate so as to avoid deformation of the steel corrugated plate in the hoisting process. An adjusting mechanism which is connected with the arch crown of the steel corrugated plate and can adjust the span of the steel corrugated plate is further connected below the lifting hook through a hand-drive block, and the adjusting mechanism comprises a lifting lug. The support-free hoisting installation system applied to the large-span arched steel corrugated plate can effectively solve the problems that in the prior art, before hoisting of the steel corrugated plate, the span of the steel corrugated plate is mainly adjusted by manually and repeatedly shaking a hoist chain, climbing to the top of the steel corrugated plate for multiple times is needed for high-altitude operation, the labor intensity is large, the risk is high, and the working efficiency is high. And repeated debugging is often needed, so that the adjustment time of a single steel corrugated plate is relatively long, and the overall hoisting progress is slowed down.
Owner:CHINA RAILWAY SEVENTH ENG BUREAU GRP GUANGZHOU ENG CO LTD +3
Beidou digital twinning system for precision hoisting of bridge steel member and hoisting method
The invention belongs to the field of bridge engineering construction monitoring and intelligent control, and provides a Beidou digital twinning system for bridge steel member precision hoisting and a hoisting method aiming at the problems of low efficiency and poor real-time performance of on-site hoisting of a segment steel member in a large-span bridge structure. The system comprises a multi-source data acquisition module, a coordinate conversion module, an attitude calculation module, a three-dimensional virtual model construction module, a hoisting motion state monitoring module and a digital twinning module. The attitude resolving module calculates a standard attitude vector by using a comprehensive deep learning model according to the degree-of-freedom data, the attitude information and the movement speed, and performs attitude resolving based on the standard attitude vector to obtain an attitude angle of the bridge steel member; the hoisting motion state monitoring module can perform safety early warning and posture adjustment when the bridge steel member is abnormal; and the digital twin module can synchronously update the attitude information and the three-dimensional virtual model of the bridge steel member to obtain the current space trajectory and historical state of the bridge steel member.
Owner:CHINA RAILWAY CONSTR BRIDGE ENG BUREAU GRP CO LTD
Rail protection system for crown block operation
The rail protection system is used for preventing the crown block running on a rail system from rushing out, the rail system comprises a straight rail and a bent rail in transition connection with the straight rail, in the walking direction limited by the straight rail, the straight rail is provided with a reserved straight section comprising a rail breaking opening on the first side of the bent rail, and the rail breaking opening is formed in the first side of the bent rail. The straight rail is provided with a conventional straight section on the second side of the bent rail; the track protection system comprises a blocking device fixed to the reserved straight section and a track protection device fixed to the reserved straight section. The steering guide piece is fixed above the conventional straight section; the steering device comprises a steering wheel arranged on the crown block, the steering wheel is configured to be capable of moving in the transverse direction so as to be adjusted to a guide matching position, and when the steering wheel is located at the guide matching position, the steering wheel is driven to rotate. The steering wheel can be matched with the steering guide piece when advancing along the conventional straight section so as to enable the crown block to steer and enter the bent rail, and the transverse direction and the walking direction are perpendicular to each other in the horizontal direction.
Owner:MEETFUTURE TECH (SHANGHAI) CO LTD
Intelligent monitoring system for overweight segmented hoisting process based on BIM (Building Information Modeling) and force feedback
ActiveCN121591114ADesign optimisation/simulationSpecial data processing applicationsData synchronizationSmart surveillance
The invention relates to the technical field of intelligent monitoring of engineering hoisting, in particular to an intelligent monitoring system for an overweight segmented hoisting process based on BIM (Building Information Modeling) and force feedback, which comprises a data synchronization module, a state fusion module, a BIM matching module, a track optimization module and a simulation monitoring module. The system obtains a hoisting state through multi-source sensing data, matches a BIM fine model, and generates a theoretical motion track. And the trajectory optimization module generates a force feedback deviation field by comparing expected force feedback data with actual force feedback data, reversely corrects a theoretical trajectory, and realizes dynamic path optimization based on a mechanical state. And the simulation monitoring module drives virtual simulation according to the optimized trajectory, updates the posture of the BIM model in real time, dynamically calculates an interference area, performs risk assessment, and automatically generates and issues a control instruction. According to the scheme, the response precision and the active safety control capability of the hoisting process to the physical state change are improved.
Owner:PENGLAI JUTAL OFFSHORE ENG HEAVY IND CO LTD
Marine ecological monitoring station overweight component hoisting method
The invention provides a hoisting method for an overweight component of a marine ecological monitoring station, which belongs to the technical field of hoisting of the overweight component and comprises the following steps: step 1, carrying out early-stage preparation for hoisting construction of the overweight component of the marine ecological monitoring station; step 2, carrying out in-plant transportation and barge falling on the prefabricated component hoisted by the marine ecological monitoring station overweight component; step 3, carrying out open-sea field hoisting on the prefabricated component for hoisting the overweight component of the marine ecological monitoring station; 4, construction monitoring and emergency guarantee are conducted on hoisting of the overweight component of the marine ecological monitoring station. By optimizing operation window period selection, a precise positioning technology, a special lifting appliance design and a transportation reinforcement scheme, safe, efficient and precise lifting of the overweight component in the open sea is achieved, and the construction quality and the construction progress of a monitoring platform are guaranteed.
Owner:NO 2 ENG CO LTD OF CCCC THIRD HARBOR ENG CO LTD
Tire crane automatic control system and method based on embedded edge calculation
The invention provides a tire crane automatic control system and method based on embedded edge calculation, and relates to the technical field of port automation, the tire crane automatic control system comprises a sensing and detecting layer used for collecting motion states and operation environment information of a cart, a trolley and a lifting appliance of a tire crane in real time; the core control layer is used for processing sensor data in real time and generating a control instruction; the action execution layer comprises a PLC gateway, a main control PLC and a driving motor, the PLC gateway communicates with the core control layer and is used for receiving a control instruction, and the main control PLC drives the motor to execute corresponding actions of a cart, a trolley and a lifting appliance; and the task management layer comprises an intelligent remote control console, is in communication connection with the core control layer, and is used for issuing the operation task instruction to the core control layer and receiving the system state data from the core control layer. Unmanned operation of the tire crane can be achieved, and a complete technical base is provided for port automation.
Owner:SHANGHAI INTERNATIONAL PORT +1
Constructional engineering supervision intelligent safety early warning system for high-risk working plane
The invention discloses a constructional engineering supervision intelligent safety early warning system for a high-risk working plane, and relates to the field of constructional engineering supervision, and the system comprises an acquisition module which is used for collecting the wind speed, humidity, visibility and static obstacle space coordinates of the periphery of the high-risk working plane of a tower crane in real time, and generating environment perception original data; the first monitoring module is used for collecting tower crane body structure stress, a cargo boom rotation angle, a hoisting mechanism load and a brake system working condition parameter of a tower crane and generating tower crane body operation state data. According to the system, surrounding environment parameters, equipment operation states and personnel dynamic states can be obtained in real time, risk grades and types are accurately judged, multi-form early warning is pushed in time, tower crane operation is regulated and controlled in a linkage mode, personnel casualties and equipment damage risks are effectively reduced, construction engineering supervision safety and efficiency are improved, and safety and reliability are improved. And safety accidents caused by untimely risk disposal or misoperation are avoided.
Owner:ANHUI XIANGRUN ENGINEERING PROJECT MANAGEMENT CO LTD
Crane wheel deviation detection device and detection method
The invention provides a traveling crane wheel deviation detection device and method.The traveling crane wheel deviation detection device comprises a distance measuring sensor arranged on a traveling crane body, and the distance measuring sensor is flush with the center of a traveling crane wheel in the width direction; the plurality of reflection targets are arranged on one side of a traveling track, a set distance is formed between the plurality of reflection targets and the traveling track, and the plurality of reflection targets are uniformly arranged at intervals in the extending direction of the traveling track; the distance measuring sensor is used for collecting distance information between the distance measuring sensor and the reflection target in real time; the distance measuring sensor is in communication connection with the monitoring terminal, and the distance measuring sensor transmits the collected distance information to the monitoring terminal in real time. The deflection condition of the travelling crane wheel can be monitored in real time, so that safety accidents can be avoided, and the operation safety of equipment is guaranteed.
Owner:SHANGHAI BAOSTEEL METALLURGICAL CONSTRUCTION CORP +1
A marine lifting spreader, a measurement and control system applying the same and a block hoisting method
The present application relates to a kind of offshore spreader and the measuring and controlling system of application thereof, block hoisting method, belong to underwater block hoisting technical field.The offshore spreader includes lifting frame, hook, unhooking device and measuring tower;Wherein, lifting frame is used to connect hoisting equipment;Hook is installed below lifting frame and is hinged with lifting frame, for connecting the lifting hole of prefabricated block;Unhooking device includes unhooking frame, driver and connecting rod, for realizing the automatic hooking and automatic unhooking of hook;Measuring tower is fixedly installed above lifting frame, and measuring tower includes column installed around lifting frame and upper measuring platform on the top of column, for measuring the positioning data of offshore spreader.The offshore spreader and the measuring and controlling system of application thereof, block hoisting method combine measuring tower and unhooking device, can obtain the positioning information of spreader in real time, and then timely adjust the position of spreader and block, ensure the precision of block installation;While underwater automatic unhooking can reduce the risk of manual operation.
Owner:CCCC FIRST HARBOR ENGINEERING CO LTD +1
Multi-source data fusion and safety early warning system and method in hoisting process of wind turbine generator
The invention belongs to the field of safety monitoring of wind power equipment, and provides a multi-source data fusion and safety early warning system and method in the hoisting process of a wind turbine generator, and the system comprises a data collection and preprocessing module which collects and preprocesses multi-source sensor data such as a tower inclination angle and a suspension arm inclination angle; the state manifold construction module is used for mapping the preprocessed data to a multi-dimensional space to construct a state manifold and generating an ideal geodesic line; the trajectory analysis and risk assessment module is used for calculating the deviation degree between the real-time state trajectory and the ideal geodesic line and generating a risk score; the dynamic threshold generation module constructs a risk tensor field based on environmental parameters, and extracts a risk threshold curved surface after wind speed adjustment; the early warning decision module is used for comparing the risk score with a threshold curved surface to determine an early warning level and sending information; and the visual display module is used for displaying the state manifold, the track, the tensor field and the early warning information. By introducing a differential geometry theory, state manifold representation and geodesic deviation measurement are constructed, and accurate assessment of the hoisting process risk is realized.
Owner:CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD
Electronic fence safety protection early warning system and method based on crane operation
The invention provides an electronic fence safety protection early warning system and method based on crane operation, and relates to the technical field of safety protection early warning. The early warning system comprises a dynamic fence generation module which is used for generating an electronic fence area according to working range parameters of crane equipment, dynamically adjusting an electronic fence boundary and generating dynamic fence data; the multi-source data fusion analysis module is used for identifying and calculating the operation risk factors according to the multi-source data and generating real-time operation risk state information; the environment self-adaptive adjustment module is used for dynamically adjusting the early warning parameters according to the external environment data and generating adjusted early warning parameters; and the comprehensive early warning output module is used for evaluating the overall risk of the crane operation according to the dynamic fence data, the real-time operation risk state information and the adjusted early warning parameters, and generating a corresponding early warning instruction according to an evaluation result. The method can comprehensively guarantee the safety of crane operation.
Owner:STATE GRID BEIJING ELECTRIC POWER CO +1
Construction method for multi-point hoisting in-place of prefabricated part
The invention provides a construction method for multi-point hoisting in-place of a prefabricated part, and belongs to the technical field of building construction.The construction method includes the steps that a plurality of hoisting point positions are marked on the surface of the prefabricated part, a tension sensor and a hydraulic adjusting device are installed, and a laser range finder is used for establishing a part posture parameter model for calibration before hoisting; starting a synchronous hoisting program, calculating a target tension value of each hoisting point according to the attitude model, realizing stable hoisting and horizontal migration through a hydraulic adjusting module, starting an accurate positioning system for fine adjustment when approaching a target position, and executing in-place operation of reducing the tension value by stages; a tension balance optimization equation set including a force balance equation, a moment balance equation and a dynamic adjustment equation is adopted to optimize the control process, and the technical problems of component deformation and safety risks caused by uneven stress of multiple lifting points in the prefabricated component lifting process are solved.
Owner:CHINA CONSTR EIGHTH BUREAU DEV & CONSTR CO LTD
Intelligent tower top self-climbing crane and climbing method thereof
The invention relates to the technical field of intelligent control of cranes, and discloses a tower top self-climbing intelligent crane and a climbing method thereof. The method comprises the following steps: firstly, constructing a digital twin model in the climbing process of the crane, and synchronizing real-time operation data acquired by a sensor; fusing the multi-dimensional features to generate a spatial-temporal feature matrix containing position, load, wind speed and vibration information; inputting the risk feature vector into a probabilistic modeling module, and outputting a risk feature vector with confidence; constructing a three-dimensional risk concentration distribution field in combination with crane structure information, and predicting a risk propagation path and a diffusion trend based on graph topology; and finally, constructing a self-adaptive early warning threshold generation model, generating multi-level early warning thresholds changing along with the climbing state, and realizing a climbing control decision through comparison between real-time risk characteristics and the thresholds. According to the method, comprehensive perception, accurate risk assessment and dynamic control of the climbing process of the crane are realized, and the safety and stability of the climbing process are improved.
Owner:HUIZHOU JIAOTOU HIGHWAY CONSTR CO LTD
Adaptive tower crane anti-collision early warning method based on data fusion
The invention discloses an adaptive tower crane anti-collision early warning method based on data fusion. The method comprises the following steps: step 1, acquiring attitude data of equipment, surrounding environment data and interaction data between tower cranes through data acquisition equipment; performing time synchronization and coordinate unification; 2, according to the relative space relation between the tower cranes and the relative space relation between the tower cranes and the environment, multiple collision risk scenes are divided, key risk features in all the scenes are extracted, and fusion processing is conducted on the features through a data fusion algorithm; 3, according to the real-time working condition parameters, dynamically adjusting the weight of the key risk characteristics in each scene; carrying out the normalization processing of the fused risk features, and carrying out the weighted fusion according to the weight, and obtaining a global risk value; 4, setting a third-level threshold value, and triggering a corresponding early warning action according to an interval to which the global risk value belongs; and collecting risk characteristic data feedback in real time, and if the risk is not reduced to a safety range and meets a time interval condition, repeatedly executing early warning evaluation and instruction sending.
Owner:NANJING TIANZHOU TESTING CO LTD
Stepless magnetic control system for intelligent crown block
The invention discloses a stepless magnetic control system for an intelligent crown block, which belongs to the technical field of electromagnetic control, and comprises a vibration signal acquisition module for acquiring an iron core micro-vibration signal of an electromagnet iron core; the dynamic flux linkage compensation module generates a magnetic flux compensation signal; the inertia trend prediction module generates load inertia change trend information; the multi-dimensional attitude sensing module obtains inclination angle data and tension data; the space-time collaborative decision control module performs space-time weighted fusion on the magnetic flux compensation signal, the load inertia change trend information, the inclination angle data and the tension data to generate collaborative control parameters; the instruction generation module analyzes the cooperative control parameters to generate a magnetic field intensity adjustment instruction; and the cooperative execution module executes the magnetic field intensity adjustment instruction to cooperatively adjust the electromagnetic force. A control strategy of multi-dimensional sensing data fusion and space-time collaborative decision is adopted, magnetic field fluctuation can be effectively compensated, and load swing is actively inhibited.
Owner:HUNAN HUAZHONG SHARING INTELLIGENT CONTROL TECH CO LTD
Special lifting appliance for pinch roll
Owner:LUOYANG CRANE FACTORY CO LTD
Method for monitoring and controlling wind power of tower crane in constructional engineering
The invention relates to the technical field of wind power monitoring, and discloses a construction engineering tower crane wind power monitoring control method, which comprises the following steps: collecting wind power environment data around a tower crane structure through a multi-source sensor network, including wind speed, wind direction, wind pressure and tower crane boom vibration parameters, and generating a tower crane wind power original data set; performing wind load fusion evaluation processing based on the tower crane wind power original data set, calculating actual wind load distribution of each part of the tower crane by combining a tower crane structure model and a computational fluid dynamics principle, and generating tower crane wind load evaluation data; when wind power monitoring and controlling of the tower crane in constructional engineering are carried out, wind power environment data and structure response data around a tower crane structure are collected through a multi-source sensor network, a tower crane wind power original data set is generated, wind load fusion evaluation processing is carried out, and the wind load actually borne by the tower crane can be reflected; and meanwhile, the calculated tower crane wind load evaluation data and the tower crane safety threshold are compared and analyzed in real time, and a reliable basis is provided for control decision.
Owner:CCCC FOURTH HIGHWAY ENG CO LTD +1
Hoisting mechanical equipment health online monitoring and remote control method and system
ActiveCN121948292AStable and credible health assessment conclusionsImprove reliabilityMeasurement devicesEnsemble learningEvaluation resultRemote control
The invention discloses an online health monitoring and remote control method and system for hoisting mechanical equipment, and relates to the technical field of industrial equipment health monitoring and intelligent control, and the method comprises the steps: constructing health grade judgment, credibility calculation and abnormal trend intensity analysis results into a real number BPA, carrying out the complex field expansion of the real number BPA, and carrying out the remote monitoring of the health of the hoisting mechanical equipment; obtaining a plurality of evidence sets; calculating the credibility of the plurality of evidences in the plurality of evidence set, and classifying the plurality of evidences, including high-credibility evidences and low-credibility evidences; and performing weight discount correction on the low-credibility evidence, fusing the corrected plurality of evidences by using a plurality of evidence combination rule, and generating a final health evidence value by adopting a conservative decision strategy. Therefore, a stable and credible health assessment conclusion can still be formed when various state assessment results have uncertainty or conflicts, and the conclusion is used as a remote control decision basis, so that the reliability of equipment health state judgment and the safety of a remote control process are improved.
Owner:MAX (TIANJIN) TECH SERVICE CO LTD
Hoisting operation monitoring system for intelligent construction
The utility model belongs to the technical field of hoisting operation, and relates to a hoisting operation monitoring system for intelligent construction. The system comprises a plurality of lifted object posture monitoring modules arranged on a lifted object or / and a lifting appliance and used for monitoring the posture change of the lifted object, the real-time state of a lifting rope and a lifting hook and the surrounding environment; the lifted object stability monitoring module is arranged on the lifting rope and is used for monitoring the real-time state of the lifted object and the surrounding environment; the AI identification module is used for identifying risks and abnormal conditions in the hoisting operation process by utilizing an image processing algorithm and monitoring data; and the virtual simulation module is used for establishing a hoisting operation site distribution BIM model, a hoisted object BIM model library and a real-time digital twinborn model of a hoisted object in the hoisting operation process. According to the utility model, multidirectional real-time monitoring and simulation can be carried out on the posture and the stability of a hoisted object in the hoisting operation process, so that the intelligent level of the hoisting operation is improved, and the efficiency and the safety of the hoisting operation are further improved.
Owner:ECOLOGICAL ENG CO LTD OF CCCC FIRST HARBOR ENG CO LTD +1
Monitoring and early warning system and method for crossing blocking working rope
PendingCN121612995ASafety devices for lifting equipmentsMaterial analysis using acoustic emission techniquesData streamSystem optimization
The invention relates to a monitoring and early warning system and method for a working rope crossing a blocking net, and belongs to the technical field of rope state monitoring, and the system comprises a data collection and transmission module which is used for collecting multi-source state data of acoustic emission, tension and the like of the working rope and forming a structured data stream; the rope state intelligent analysis module is used for carrying out AE signal depth analysis and multi-modal feature fusion risk assessment based on the data stream, and constructing and updating a rope digital twinborn model; the damage feature and risk knowledge base is used for storing reference information to support intelligent analysis; the early warning decision and response module is used for performing graded early warning and residual service life (RUL) prediction according to the analysis result and knowledge base information and providing maintenance suggestions; the system optimization and self-learning module is used for coordinating system work and self-learning an optimization model and a knowledge base based on operation data; accurate monitoring, early damage identification, intelligent risk assessment and timely early warning of the state of the working rope can be realized, and the use safety and reliability are remarkably improved.
Owner:FUJIAN TRANSMISSION & DISTRIBUTION ENG +1
Unmanned aerial vehicle hoisting system and device
The invention relates to the technical field of unmanned aerial vehicles, and discloses an unmanned aerial vehicle hoisting system and device.The unmanned aerial vehicle hoisting system comprises an unmanned aerial vehicle and a hoisting device, the hoisting device is provided with a rope assembly, a fusing unit, an unhooking mechanism, a weighing module, a swing detection module, an environment sensing module and a control circuit board; a coupling dynamic model is constructed based on the data, a control instruction is generated to cooperatively control the flight of the unmanned aerial vehicle and the hoisting device, predictive anti-swing control is performed by using wind speed sensor data, cable path obstacle avoidance is performed through a miniature laser radar or a depth camera, and a fusing unit is triggered to perform emergency processing according to judgment. And a distributed force sensor array is used for sensing the gravity center of the load so as to maintain flight balance, precise unloading is achieved through a high-precision millimeter wave radar or a flight time laser distance measuring sensor, and the insulation state of the hoisting cable is monitored in real time.
Owner:TIANSHENGQIAO BUREAU CSG EHV POWER TRANSMISSION CO
Crown block operation fault detection method and system, electronic equipment and storage medium
The invention provides a crown block operation fault detection method and system, electronic equipment and a storage medium, and belongs to the technical field of fault detection, and the method comprises the steps: detecting a crown block based on a first detection frequency, and obtaining target state detection data; and if the target state detection data does not meet the first condition, detecting operation data of the crown block based on the target state detection data to obtain crown block operation detection data. And inputting the crown block operation detection data and the target state detection data into the crown block fault detection model to generate a detection result. The crown block fault detection model is obtained by training crown block fault sample data and comprises a first correlation coefficient and a second correlation coefficient. The first correlation coefficient represents the correlation between each fault feature in the crown block fault sample data and the crown block fault type, and the second correlation coefficient represents the correlation among a plurality of fault features in the crown block fault sample data. According to the invention, the accuracy of crown block fault detection can be improved.
Owner:曹妃甸港集团股份有限公司
Bridge girder erection machine double-hook collaborative hoisting track planning method considering space-time coupling constraint
ActiveCN121598649ADesign optimisation/simulationConstraint-based CADControl engineeringGeometric modeling
The invention belongs to the field of hoisting track planning, and particularly discloses a bridge girder erection machine double-hook collaborative hoisting track planning method considering space-time coupling constraint, which comprises the following steps: constructing a kinematic model of a bridge girder erection machine and a three-dimensional obstacle geometric model of a hoisting operation environment, and forming a multi-dimensional configuration space; generating a hoisting operation sequence according to the type attribute of the to-be-hoisted component; in the global path planning stage, a sampling-based global path planning algorithm is adopted to carry out search sampling in a multi-dimensional configuration space, and a double-hook kinematics cooperative constraint detection mechanism is implanted to obtain an initial collision-free path; in the local trajectory optimization stage, a trajectory smoothing model based on quadratic programming is constructed, and a smooth and synchronous time state trajectory is generated by minimizing jerk and introducing synchronization error hard constraint. The problems of space-time coordination and anti-swing control in double-hook hoisting operation are effectively solved, and the optimal balance of efficiency and safety is achieved.
Owner:HUAZHONG UNIV OF SCI & TECH
Intelligent suspension bridge hoisting monitoring method and system based on machine vision
The invention discloses an intelligent suspension bridge hoisting monitoring method and system based on machine vision, and the method comprises the steps: collecting images through visual units distributed around a main cable, a sling and a component hoisting point, generating a component three-dimensional attitude vector of a to-be-hoisted component, obtaining the displacement of a plurality of sampling points of the to-be-hoisted component, and obtaining the displacement of the to-be-hoisted component; calculating displacement measurement in a time interval, taking the weighted sum of the displacement measurement of all sampling points as a dynamic deformation index, and calculating a time sequence stability index of the to-be-hoisted component according to the three-dimensional attitude vector of the component and the dynamic deformation index; generating a displacement spectrum of each sling, calculating a direction consistency index and a peak mutation degree according to the displacement time sequence, and calculating a frequency spectrum clustering degree according to the displacement spectrum; and taking the weighted sum of the direction consistency index, the peak value mutation degree and the frequency spectrum clustering degree as a sling stress trend factor, coupling the sling stress trend factor with a time sequence stability index, generating a risk quantitative index of the hoisting process, and performing monitoring according to the risk quantitative index.
Owner:CHINA CONSTRUCTION SIXTH ENGINEERING DIVISION CO LTD +1
Lifting appliance
Owner:HUNAN CHUANGYUAN MINING MASCH CO LTD
Hoisting positioning remote control method and system for port container crane
The invention relates to the technical field of remote control, in particular to a hoisting positioning remote control method and system for a port container crane, and the method comprises the following steps: collecting a space coordinate sequence of a lifting appliance, analyzing a vector included angle and a displacement length, generating a track curvature sequence, and generating risk points based on the comparison of curvature and space distance; the method comprises the following steps of: calculating the trajectory curvature and the spatial position of a lifting appliance, calculating the collision time advance, constructing a three-dimensional outer envelope surface based on a predicted value, calculating a stacking boundary error, performing projection calculation on a coverage proportion, and generating a lifting risk area. The lifting appliance movement is monitored in real time and potential risk points are identified by accurately calculating the trajectory curvature and the spatial position of the lifting appliance; the collision time is predicted by combining the ratio of the tangential speed to the spatial distance, the risk prediction precision is improved, three-dimensional pose analysis and error control enable the spatial error distribution of the lifting appliance to be finely managed, a risk area is calibrated in time, operation interruption is avoided, and the precision, safety and remote control capability of lifting operation are integrally improved.
Owner:JINING GANGHANG LONGGONG PORT CO LTD +1
Automatic lifting appliance intelligent obstacle avoidance control system
The invention relates to the technical field of automatic control of cranes, discloses an intelligent obstacle avoidance control system for an automatic lifting appliance, and aims to solve the problems of limited sensing range, insufficient environmental adaptability and low obstacle avoidance decision-making efficiency in the prior art. The system comprises a multi-source fusion sensing module, a dynamic environment modeling module, a trajectory prediction and risk assessment module, a hierarchical decision control module and an execution driving module, and through multi-source sensor data fusion, dynamic environment modeling, trajectory collaborative prediction and hierarchical decision control, deep analysis of the space-time relationship between the lifting appliance and the obstacle is realized. And a self-adaptive obstacle avoidance instruction is generated, so that the operation safety, autonomy and operation efficiency of the lifting appliance in a dynamic environment are effectively improved.
Owner:JIANGSU XINGONG INTELLIGENT EQUIP CO LTD
Hoisting equipment distribution visualization and monitoring method
The invention discloses a hoisting equipment distribution visualization and monitoring method, and relates to the technical field of industrial hoisting safety, and the method comprises the following steps: generating a synchronously associated multi-source fusion data set; constructing a three-dimensional basic model of the hoisting operation area; dividing the three-dimensional dynamic model into a base layer, an equipment layer, a key component layer and a data layer by adopting a self-adaptive hierarchical rendering algorithm, adjusting the rendering precision of each layer according to a priority coefficient, and generating an equipment distribution visual interface; identifying an abnormal state of the equipment and positioning a fault position, and triggering a corresponding grading early warning signal according to an abnormal grade; and based on the abnormity type and the fault position corresponding to the early warning signal, a targeted disposal suggestion scheme is generated. The real-time monitoring, fault early warning and three-dimensional dynamic visualization of the hoisting equipment are realized by fusing space-time alignment, multi-source data synchronization, a digital twinning technology and a self-adaptive rendering algorithm, and the equipment safety and the operation efficiency are remarkably improved.
Owner:CHINA RAILWAY 14TH BUREAU GRP NO 3 ENG CO LTD +1
Intelligent hoisting equipment for suspension bridge truss girder in extreme wind environment and hoisting construction method
PendingCN121948274AEffectively offsets horizontal swingsImprove stabilitySafety gearArchitectural engineeringLattice girder
The invention belongs to the technical field of truss girder hoisting, and particularly relates to intelligent hoisting equipment for a suspension bridge truss girder in an extreme wind environment and a hoisting construction method.The intelligent hoisting equipment comprises a floating crane, and a hoisting tool component is fixedly installed at the lower end of a steel wire rope of the floating crane and comprises a posture adjusting device and an offset adjusting device. According to the intelligent hoisting equipment for the suspension bridge truss girder in the extreme wind environment and the hoisting construction method, by arranging the sling component and integrating the posture adjusting device and the offset adjusting device, multi-degree-of-freedom active adjustment can be conducted on the hoisted truss girder. The offset adjusting device generates reverse inertia force by driving the mass block to move, so that horizontal swinging of the truss girder caused by wind load is effectively counteracted; the posture adjusting device accurately corrects pitching and rolling postures of the truss girder by adjusting the length of the steel wire rope set, and therefore the overall wind resistance stability and posture keeping capacity of the hoisting system are remarkably enhanced in the extreme wind environment.
Owner:CCCC SHEC FIRST HIGHWAY ENG