4006 results about "Gravity center" patented technology

The invention provides a lower limb and gravity center dynamic balance posture early warning method based on a body measurement all-in-one machine, and the method comprises the steps: obtaining a pelvis forward inclination angle, an arch height and a gravity center position under a standard standing posture, taking the pelvis forward inclination angle, the arch height and the gravity center position as individualized baseline data, and carrying out the statistical analysis of the baseline data, and generating a dynamic balance reference value reflecting the normal balance capability of an individual; on the basis of the dynamic balance reference value, in combination with a gravity center forward trend and a lower limb muscle compensation mode, a balance offset index in standing posture change is calculated through a time sequence analysis algorithm, and a dynamic balance risk assessment result is obtained; and if a dynamic balance risk assessment result exceeds a danger threshold, clustering analysis is carried out on associated parameters of the pelvic forward inclination angle and the arch height, grouping processing is carried out on the associated parameters, and potential reasons causing balance capability degradation are identified.

The invention discloses a warehouse cargo supply chain management method and system based on AI big data, and relates to the technical field of warehouse management, and the method comprises the steps: collecting and preprocessing warehouse multi-source data, and predicting the cargo delivery frequency based on an LSTM neural network; and a multi-target scheduling model combining pickup path time consumption and storage gravity center control is constructed based on a prediction result, a cargo task and AGV path planning are jointly modeled into an open path multi-starting-point asymmetric TSP problem, an FWA-GA hybrid optimization algorithm is used for model solving, and an optimal cargo allocation matrix and an optimal AGV scheduling path table are obtained. Therefore, integrated joint optimization of task allocation, path planning and goods allocation layout is achieved, a supply chain platform is further linked to complete stockout early warning and supplier intelligent selection, and multiple limitations of a traditional method in the aspects of prediction precision, scheduling coupling, structure control, supply collaboration and the like are effectively broken through.

The invention discloses a self-adaptive gravity center adjustment method and system for a transfer robot, and relates to the technical field of robot control, and the method comprises the steps: respectively collecting the three-dimensional information and contact force distribution information of an article and the contact force information between the robot and the article through a sensor, integrating the collected information to obtain a multi-modal data set, and carrying out the preprocessing of the multi-modal data set; utilizing a deep learning algorithm to extract visual feature vectors from the three-dimensional image information, and extracting tactile feature vectors from the contact force distribution information and the contact force information; fusing the extracted visual feature vector and the extracted tactile feature vector to obtain a multi-modal feature set; constructing a motion state model based on a deep learning algorithm, inputting the motion state model by using the historical multi-modal feature set, and outputting a control strategy; a control algorithm and a control strategy are optimized by using real-time feedback information; the invention provides a self-adaptive gravity center adjustment method by collecting multi-modal sensor data and combining a deep learning algorithm to perform feature extraction and fusion.

The invention relates to the technical field of warehouse logistics equipment, and discloses an omni-directional intelligent mobile forklift control system. The system comprises a dynamic path planning module, an omnidirectional motion control module, a load stability monitoring module, an environment adaptive adjustment module and an intelligent obstacle avoidance decision module. The dynamic path planning module collects storage environment multi-dimensional spatial data and constructs a dynamic environment topological map; the omni-directional motion control module analyzes driving wheel parameters based on the map and generates an omni-directional motion composite motion instruction set; the load stability monitoring module collects a fork pressure distribution matrix and a cargo gravity center offset according to an instruction set, and calculates a stability compensation parameter; the environment adaptive adjustment module fuses illumination and slope data to generate a motion control constraint condition; and the intelligent obstacle avoidance decision module predicts a dynamic obstacle trajectory, outputs an obstacle avoidance path re-planning instruction and updates a map. The system can meet the requirements of modern intelligent warehousing.

The invention relates to the technical field of dynamic weighing, and discloses an intelligent load prediction and adjustment method in a dynamic weighing system, which comprises the following steps of: separating a weighing signal into a space domain static load characteristic (pressure point distribution sparsity and gravity center geometric vector) and a time domain dynamic inertial interference component (acceleration coupling noise) through space-time double-domain decoupling; the frequency spectrum aliasing problem of a traditional filtering algorithm is eliminated from a signal source; the future interference trend is predicted based on the real-time motion state of the carrier, a feed-forward compensation signal is generated through a pre-training dynamic basis function library, and dynamic errors are actively counteracted; in combination with sensor array space consistency detection and lightweight online learning, decoupling model parameters are dynamically corrected. According to the method, space geometric analysis and kinematics feedforward prediction are combined, a traditional signal processing framework is strided out, error source separation and real-time compensation are achieved, and the dynamic weighing precision of transient working conditions such as sudden stop and speed change is remarkably improved.

The invention discloses an automobile hoisting device, and belongs to the technical field of engineering hoisting. The problems that the gravity center of a component is difficult to accurately determine, the position and posture control of a cargo boom is inaccurate, and the load cannot be adaptively adjusted exist in the hoisting process of an existing automobile crane. The device comprises a truck crane body, a cargo boom tail end execution module, a cargo boom body sensing module, an environment sensing module and a control module. The control module is internally provided with a dynamic gravity center correction unit, a multi-sensor fusion unit and a self-adaptive load control unit, processes related sensor data based on Kalman filtering, extended particle filtering and a model prediction control algorithm, and outputs an adjustment instruction. The method is mainly used for improving the accuracy, safety and efficiency of automobile hoisting operation.

The invention belongs to the technical field of aircraft control, relates to an aircraft gravity center real-time balancing method and system based on dynamic parameter fusion, and aims to solve the problems of insufficient real-time performance, accuracy and self-adaptability of a gravity center balancing method under complex flight conditions in the prior art. The method comprises the steps that real-time parameters are obtained, and the real-time gravity center position is calculated; if the real-time gravity center position is not within the preset range, calculating a first inertia moment and a first additional moment caused by fuel density change and a second inertia moment and a second additional moment caused by aeroelastic deformation; performing inertia moment correction based on the first inertia moment and the second inertia moment; additional moment correction is carried out based on the first additional moment, the second additional moment and the real-time pitching inertia moment; when the real-time gravity center position is within the preset range, gravity center balancing is completed. The fuel oil density and aeroelastic parameters are estimated in real time through a self-adaptive control algorithm, rudder deflection and fuel oil distribution are cooperatively adjusted, and the problem of center-of-gravity shift under complex disturbance can be effectively solved.

The invention discloses a quadruped inspection robot space positioning method and system based on gravity center sensing, and aims to construct a gravity center potential energy field through foot end contact force and body attitude information, form a gravity center disturbance mode in combination with fluctuation spectrum analysis, and reveal a disturbance propagation mechanism. A reverse compensation technology is adopted to generate an anti-disturbance sequence, a foot end force distribution topology is reconstructed, and active disturbance suppression is achieved; a multi-frequency detection wave beam and coherent superposition technology is introduced, an environment hologram is generated, geometric topology is reconstructed, and a high-precision environment sensing system is established; high and low impedance regions are identified through energy density analysis, and an energy optimal path is constructed in combination with double strategies of potential field bypassing and streamline tracking; establishing an oscillation analysis space for path projection simulation, identifying resonance risk points and determining stabilization parameters; finally, a coordinate reference is generated by adopting a quantum entanglement type multi-anchor-point synchronization mechanism, accurate positioning is realized by fusing environmental geometric information, and a technical closed loop from gravity center dynamics analysis to environmental perception navigation is realized.

The invention discloses a tunnel monitoring method and system based on a vibrating wire sensor, and relates to the technical field of tunnel engineering construction safety monitoring, and the method comprises the steps: collecting the vibration frequency data and spatial position coordinates of the vibrating wire sensor in a monitoring region; the method comprises the following steps: calculating a time difference and an energy attenuation ratio between adjacent sensors by extracting spectrum energy density distribution, and constructing a stress wave propagation field; dividing grids in the propagation field to calculate node stress values, generating a stress field distribution cloud picture and extracting a stress concentration area; calculating a gravity center position coordinate change rate and a stress time sequence curve of the stress concentration area, and determining fracture extension parameters; and calculating a surrounding rock bearing capacity attenuation curve based on the parameters, and outputting an early warning signal when the slope exceeds a threshold value. According to the invention, real-time monitoring and early warning of the tunnel surrounding rock instability risk are realized.

The invention provides a coffee machine mechanical arm acceleration compensation control method and device based on toppling spill prevention, and relates to the technical field of mechanical arm control. A coffee machine calls a real-time acceleration sequence from an acceleration control library after receiving a real-time order, and a pipetting mechanical arm moves along a pipetting collision-free track in the process of clamping an order coffee cup to move along the pipetting collision-free track; the liquid gravity center offset is measured in real time through a six-axis force sensor integrated on a clamping jaw, and lagging shake offset of a real-time acceleration sequence is carried out according to the real-time gravity center offset. The technical problem that in the prior art, when a mechanical arm of a coffee machine transports coffee drinks containing heterogeneous liquid, the displacement control stability is insufficient, and pouring and scattering are likely to happen is solved. The technical effects that the coffee liquid is effectively prevented from spilling and leaking in the transportation process, the transportation stability of complex coffee drinks containing ice blocks, foam and the like is remarkably improved, safety and high efficiency of collaborative operation of the multiple mechanical arms are ensured, and the delay or overflow risk caused by liquid shaking is greatly reduced are achieved.

The invention discloses a tray forking method and system, a storage medium and a program product, and relates to the field of general control or adjustment systems.The method comprises the steps that tray area images are collected, and tray position coordinates and cargo distribution data are obtained; carrying out gravity center calculation to obtain a cargo plane gravity center predicted value, calculating a stress compensation coefficient of a scissor fork module, and determining an initial stress value; determining motion track parameters of the robot, and generating a motion control instruction for controlling a pallet fork of the robot to move to a preset position; an initial lifting instruction is generated and used for controlling a scissor fork module of the robot to conduct lifting motion; acquiring real-time stress data of the scissor fork module, determining a horizontal attitude deviation value of the tray, and generating a lifting compensation instruction for adjusting the real-time stress data so that the target tray is adjusted to a horizontal state; and generating a truck body forward moving instruction and a module homing instruction, and controlling the target tray to be placed on the truck body. According to the invention, the tray forking and moving stability of the robot can be improved.

The invention relates to the technical field of Internet of Things perception, in particular to an intelligent storage digital visual management system and method based on the Internet of Things. The method comprises the following steps: acquiring intelligent storage structure data; constructing a storage three-dimensional model according to the intelligent storage structure data; carrying out material carrying simulation based on the storage three-dimensional model to obtain material carrying data; identifying a high-frequency congestion area based on the material handling data; carrying out cargo placement analysis according to the high-frequency congestion area to obtain cargo placement data; identifying a cargo spatial form based on the cargo placement data to obtain cargo spatial form data; carrying out cargo gravity center shift detection according to the cargo spatial form data to obtain cargo gravity center shift data; and according to the cargo gravity center shift data, acquiring a cargo unique label to obtain cargo label data. The goods stacking safety rate and the goods shelf structure operation stability rate in intelligent storage are improved based on the Internet of Things sensing technology.

The invention discloses a high-speed turntable variable load adaptive control method, which is based on a closed-loop control mode, realizes adaptive regulation and control of a microprocessor on the rotating speed and the position of a servo motor by combining a fuzzy PID (Proportion Integration Differentiation) control algorithm, reduces the regulation response time and errors of a high-speed turntable, and improves the operation stability of a turntable system. The rotation angle of the high-speed rotary table is fed back to a microprocessor by a displacement sensor to form a closed-loop control system, and an improved gravity center Lagrange interpolation-Fourier harmonic synthesis displacement sensor error compensation model is established, so that the high-speed rotary table can still obtain a high-precision displacement measurement result in a variable-load processing working environment; a software operating system is designed to control and realize multi-task operation such as start-stop, initialization, instruction import and the like of the turntable, and the real-time performance and the detectability of the high-speed turntable system are improved. The method can be used for self-adaptive control under the condition of a variable-load high-speed turntable, and has the characteristics of high precision, fast response and good robustness.

The disclosure relates to the technical field of anti-icing and de-icing of an overhead transmission line or a railway contact system, and provides a mechanical anti-icing and de-icing device fixedly installed on the overhead transmission line or the railway contact system. The device comprises a base, an electric driving assembly, a weight block and a potential energy module comprising an elastic element. The electric driving assembly comprises a clutch mechanism and a motor. When the clutch mechanism is in an engaging state, the electric driving assembly drives the weight block to generate displacement relative to the base, and when the clutch mechanism is in a separation state, the electric driving assembly cuts off driving to the weight block. When the clutch mechanism is engaged, the potential energy module is used for accumulating potential energy when the weight block generates displacement relative to the base; and when the clutch mechanism is separated, a driving force of the electric driving assembly on the weight block is cut off, the potential energy contained in the potential energy module is rapidly released, so that the weight block moves quickly, thus causing the whole gravity center of the device to suddenly change, forming vibration to be transmitted to the overhead transmission line, so that the icing is removed.

The invention discloses a GPU-based parallel tetrahedral mesh generation method and an aircraft profile design method. At present, rapid generation of a large-scale tetrahedral mesh with reliable quality is still an open problem. The invention designs a block-based GPU tetrahedral mesh data structure, and realizes an efficient parallel tetrahedral mesh generation method based on the data structure. The method comprises the following steps: firstly, calculating the gravity center of a tetrahedron and carrying out size inspection, if the size requirement is not met, carrying out multi-round iterative cavity growth by taking the tetrahedron as a starting point, then selecting independent cavities of which the boundaries are not overlapped through a dyeing algorithm, and repairing the cavities through multi-round iteration. And finally, cavity reconnection is carried out, and topological information and neighbor information of the grid are updated. And the steps are repeatedly executed until all tetrahedrons meet the size requirements, so that the large-scale tetrahedral mesh with reliable quality is quickly generated, and the time required for optimizing the shape design of the aircraft is greatly shortened.

The invention discloses an intelligent sorting and scheduling method and system for a multimodal transport scene, and relates to the technical field of warehousing, and the method comprises the steps: collecting the transportation mode identifiers of a plurality of transportation carriers, the physical attribute information of corresponding goods, and the operation state information of a three-dimensional sorting system in real time; analyzing the multimodal transport rigid rule information to generate a dynamic boundary condition of multimodal transport; importing the transportation mode identifier, the physical attribute information, the operation state information and the dynamic boundary condition into a deep reinforcement learning model; outputting a goods shelf distribution strategy for dynamically distributing storage levels according to the goods gravity center parameters and an equipment task sequence for controlling the AGV carrying robot to move; and a sorting execution instruction is automatically generated so as to correspondingly drive the three-dimensional sorting system to carry out goods sorting. According to the method, a'secure storage-time coupling-space cooperation 'technical closed loop is formed, and the comprehensive logistics cost of a multimodal transport full link is remarkably reduced.

The invention discloses a wind power generation system. The system comprises a ground device; the floating device comprises an adjusting air floating piece and a first annular air floating piece, the adjusting air floating piece is movably connected with the ground device, the first annular air floating piece is connected with the adjusting air floating piece, and a through duct is defined by the inner wall of the first annular air floating piece; the wind power generation device is arranged in the duct; and the position of the gravity center of the adjusting air floating piece in the extending direction of the duct is adjustable. According to the wind power generation system, the influence of airflow disturbance, temperature change and buoyancy lift gas leakage on the floating device can be reduced, the phenomenon that the pitching posture change amplitude is large is reduced, particularly, the included angle between the wind receiving face of the blade of the wind power generation device and the airflow direction is closer to the optimal value, the effective wind energy area flowing through the blade is increased, and the wind power generation efficiency is improved. And the fluctuation of the wind energy yield along with the posture is reduced, so that the wind energy utilization efficiency and the power generation output power are improved.

The invention relates to the technical field of tractor chassis, in particular to a pure electric tractor chassis structure and a tractor, the pure electric tractor chassis structure comprises a frame and cross beams, and further comprises a horizontal adjusting assembly, a vertical adjusting assembly, a battery pack, a push switch and a reinforcing plate, the horizontal adjusting assembly is installed between the two cross beams, the vertical adjusting assembly is connected with the horizontal adjusting assembly, and the push switch is connected with the battery pack. The battery pack is installed between the inner side of the vertical adjusting assembly and the surfaces of the cross beams, the reinforcing plate is installed between the two cross beams, the pressing switch is installed on the side, close to the battery pack, of the reinforcing plate, and the horizontal adjusting assembly drives the vertical adjusting assembly to move horizontally. By lowering the gravity center and moving the gravity center forward when climbing a steep slope and ensuring the road holding force of the front wheels of the tractor, the problems of steering failure and insufficient driving caused by insufficient friction force due to the fact that the gravity center deviates backwards when a traction carriage of an existing tractor climbs a slope and turns are solved.

The invention relates to the technical field of vehicle body posture leveling control, and provides a vehicle body posture leveling control method and system for an electric mountain transport vehicle, and the method comprises the steps: obtaining ground contact state data and a transverse shaft rotation angle in real time, and carrying out the contact terrain analysis according to the ground contact state data to obtain terrain parameter information; carrying out vehicle load distribution analysis according to the ground contact state data and the terrain inclination parameters to obtain pressure gravity center shift data; adjusting the horizontal axis rotation angle according to the pressure center-of-gravity shift data to obtain a target horizontal axis rotation angle; according to the target horizontal axis rotation angle and the terrain pressure distribution data, carrying out wheel bearing demand analysis to obtain a wheel pressure adjustment strategy; and driving the suspension system to level the posture of the vehicle body according to the wheel pressure adjusting strategy. The terrain environment change can be sensed in real time based on the wheel ground contact state change and the vehicle gravity center shift monitoring mechanism, the rotation angle of the transverse shaft and the wheel ground contact pressure are accurately adjusted, and self-adaptive leveling of the vehicle body posture is achieved.

A mobile device support relates to a technical field of mobile device peripherals and includes a supporting portion and a clamping assembly. The supporting portion is configured to support a mobile device. A first part of the clamping assembly is configured to support the supporting portion. A second part of the clamping assembly is assembled on a mounting object. a connecting plate is disposed on the clamping assembly. The connecting plate is a flat, arc-shaped, or semi-circular connecting plate. After the mounting object is inserted into a clamping space, a supporting column is located above the mounting object, so that a gravity center of the clamping assembly is located on the mounting object, thus improving stability of the mobile device support. The present disclosure solves problems of poor stability and easy tilting or falling of a clamping assembly of an existing mobile device support.

The invention discloses a gravity center self-adjustment control system and method based on an electric balance car, and relates to the technical field of electric balance car control, and the gravity center self-adjustment control system comprises a multi-source sensing module, a control decision module, a multi-mode execution module and a safety control module. According to the invention, attitude, pressure, motion and environment data are fused in real time through the multi-source sensing module, three types of instability risks of sudden lateral offset, continuous slope offset and load distribution abnormity are accurately identified, and the control decision module intelligently starts differential compensation, wheel track adjustment or counterweight adjustment according to risk types. The multi-mode executing mechanism can cope with composite unbalance in a cooperative mode, the safety control module adopts a dynamic threshold value to adjust intervention sensitivity, multiple guarantees are formed in combination with a fault diagnosis and speed reduction parking mechanism, and finally the control burden of a user is relieved while the trafficability of complex road conditions is improved.

The invention discloses nuclear power large pipeline butt weld automatic welding equipment which is installed on a rail and comprises a walking assembly, the walking assembly comprises a walking driving piece, a walking driving wheel, two walking driven wheels and two walking shafts, the walking driving piece is in transmission connection with the walking driving wheel, and the walking driving wheel is in transmission connection with the walking driven wheels; the two walking driven wheels are in transmission connection with the two sides of the walking driving wheel respectively, each walking driven wheel is connected with one walking shaft, and at least one walking shaft is provided with walking wheel teeth meshed with the straight teeth on the track. A group of walking driven wheels are symmetrically arranged on the two sides of the walking driving wheel, so that the shaking phenomenon caused by the back clearance of the gear and the translation of the gravity center when equipment walks near the highest point or the lowest point of the track can be effectively prevented, the stability of the welding process is further ensured, and the welding quality can be better improved. And meanwhile, a driving mode of a single walking driving piece is adopted, control hardware and programs are simplified, and the production cost and the development time are reduced.

The invention provides a multi-objective optimization intelligent stereoscopic warehouse scheduling method and system, a medium and computer equipment. The method comprises the steps that S1, attribute data of goods in a warehouse are collected in real time; s2, based on the attribute data, weights of a plurality of optimization targets are dynamically determined through a self-adaptive weight adjustment mechanism, and the optimization targets at least comprise the space utilization rate, the access efficiency and the goods shelf gravity center; s3, carrying out multi-objective optimization on the shelf layout by adopting a particle swarm optimization algorithm, and carrying out weighted calculation on an optimization objective by the particle swarm optimization algorithm according to the dynamically adjusted weight in the step S2 to generate an optimal shelf layout scheme; s4, feeding back the optimal shelf layout scheme to a warehouse management system for execution, continuously adjusting weights and optimizing strategies according to cargo attribute data collected in real time, and dynamically balancing the space utilization rate, the access efficiency, the shelf stability and other targets through the combination of an adaptive weight adjustment mechanism and a particle swarm optimization algorithm, so as to achieve the optimal shelf layout scheme. And meanwhile, the algorithm convergence speed and the system real-time response capability are improved.

The invention provides a hoisting method of a flare tower. The hoisting method comprises the following steps: calculating the total weight and the gravity center position of a flare tower assembly; according to the requirements of the lifting height and the preset inclination angle, a balance weight piece and a main lifting lug are additionally arranged on the flare tower, so that the included angle between the horizontal plane and the connecting line between the main lifting lug of the lifted flare tower and the gravity center of the flare tower assembly is within the preset inclination angle range; welding two connecting pieces and a positioning rod at the bottom of the flare tower; hoisting the flare tower in a horizontal mode to enable the flare tower to be separated from the supporting surface; inclining the flare tower to enable the included angle between the center line of the flare tower and the horizontal plane to be a preset inclination angle; the flare tower is lifted to a deck, and a positioning rod at the bottom of the flare tower gradually gets close to a limiting device arranged on the deck; slowly moving the flare tower until the positioning rod enters the limiting device so as to limit the rotation of the positioning rod; and rotating the flare tower to enable the flare tower to vertically stand on the deck, and welding the base of the flare tower and the deck.

The utility model discloses a foaming machine mixing device capable of switching directions, which comprises a mixing head and a fixing support used for fixing the mixing head, the fixing support is rotatably connected with a main support through a rotating shaft, the feed end of the mixing head is connected with the fixed end of a rotating joint through a connecting pipe, and the feed end of the rotating joint is connected with the mixing head. And the rotating end of the rotating joint is connected with the feeding pipeline. According to the utility model, the problem that the angle and position of the mixing device of the polyurethane foaming machine are difficult to adjust can be solved, the problem that the mixing device of the foaming machine is possibly distorted and deformed when being connected with a feeding hose in the overturning process can be solved, and the problem that the gravity center of the mixing device of the foaming machine is not uniformly distributed in different working states can be solved.

The invention discloses a total station for pier body construction measurement, and belongs to the technical field of total stations, the total station comprises a support table and a total station body mounted at the upper end of the support table, a central column is fixed at the lower end of the support table, an adjusting lantern ring sleeves the central column, the side edge of the adjusting lantern ring is connected with a locking screw rod, and the locking screw rod is fixed on the support table. The end of the locking screw rod is screwed into a positioning hole in the side edge of the center column, the adjusting lantern ring is connected with a supporting column through a power connecting rod, the upper end of the supporting column is rotationally connected to the lower portion of the supporting table, a balance weight part is inserted into the middle of the center column, and a containing cavity is formed in the lower end of the balance weight part. And a movable plate is connected into a containing cavity in the counter weight part through an auxiliary spring. According to the total station for pier body construction measurement, the stability of the surveying instrument can be improved by lowering the gravity center of the total station in windy weather, and meanwhile, a tip inserted into soil can be protected when being carried, so that stab injury to personnel caused by the tip is prevented.

The invention belongs to the technical field of power transmission line operation and maintenance, and particularly relates to a working state live detection device and method for a horizontal insulator string, and the device comprises an unmanned plane, a robot, a robot hoisting mechanism, and a ground control terminal. The robot comprises a saddle-shaped frame, a state detection mechanism, a position recognition module and an axial walking mechanism, the state detection mechanism, the position recognition module and the axial walking mechanism are installed on the saddle-shaped frame, the state detection mechanism is electrically connected with the position recognition module and the axial walking mechanism, the saddle-shaped frame is provided with a balance weight, and the inner space of the saddle-shaped frame is in clearance fit with the outer diameter of an insulator string to be detected. The overall gravity center is lower than the lowest point of the insulator string. When the device is used for measurement, only the unmanned aerial vehicle needs to be controlled to hoist the robot to an insulator chain, the robot can perform self-positioning and complete detection piece by piece, multi-machine cooperative work can be realized, and the device is convenient, rapid and safe. The invention also provides an automatic detection method using the device, a non-transitory readable recording medium storing a program of the method, and a system comprising the medium.

The invention discloses a movable frame device for a high-power turboprop engine test bed and the engine test bed. The movable frame device comprises a movable frame framework, a front mounting seat and a counterweight system. The movable frame framework is arranged below the static frame device and used for being connected with the static frame device through a plurality of spring pieces arranged on the periphery of the movable frame framework, and then the rack system used for measuring the thrust of the turboprop engine is formed. The front mounting seat is used for being connected with an engine mounting rack for mounting a turboprop engine in a fast mounting manner so as to mount and support the turboprop engine to be measured. And the counterweight system is used for balancing the total weight of the turboprop engine and the engine mounting frame, so that the gravity center of the rack system is positioned in the center defined by the plurality of spring pieces. According to the movable frame device, the air inlet flow field of the propeller is not influenced by the size of the frame of the movable frame device, so that the engine performance is not influenced, the test result is high in accuracy, the test is safe and reliable, and the installation position of the propeller does not interfere with the structure of the movable frame device.

The invention discloses a stabilizing support of an air sampler, and belongs to the technical field of environment monitoring equipment, the stabilizing support comprises a support body and a bearing platform used for bearing the sampler, the top of the support body is connected with the bearing platform through a universal spherical hinge assembly, and the universal spherical hinge assembly comprises a base, a universal ball head and a short supporting column; the universal ball head is connected with the bearing platform through a short supporting column, a gravity center adjusting bin is fixedly arranged below the bearing platform, a lantern ring type locking mechanism is arranged on the opening portion of the base, and three or more radial guide grooves are formed in the end face of the opening portion of the base in the circumferential direction of the base. Each radial guide groove is internally provided with a locking block capable of sliding along the groove, the locking lantern ring can be rotated to move in the axial direction of the base, and then the locking blocks are driven to synchronously move inwards along the radial guide grooves through the conical surface extrusion effect so as to tightly hold the universal ball head. The problems that in the prior art, leveling efficiency is low, locking is prone to loosening, and the anti-overturning capacity is poor are effectively and comprehensively solved.

The invention discloses a windproof high-stability communication iron tower, and relates to the technical field of communication iron towers, the windproof high-stability communication iron tower comprises an iron tower body, a lifting assembly and a supporting assembly, in gale weather, a limiting unit relieves limiting of a lifting limiting block, a lifting mounting column vertically moves downwards, and a second tower body is driven to move downwards; the height of the second tower body is reduced, wind force borne by a signal communication device on the second tower body is reduced, the signal communication device is prevented from being damaged by wind blowing, the gravity center of the iron tower body is lowered due to lowering of the position of the second tower body, and the stability of the iron tower body is improved; when a lifting mounting column moves downwards, a lifting annular plate moves upwards, and when the lifting annular plate moves to the highest position, a locking unit can limit and fix the position of a movable connecting rod, so that the movable connecting rod is fixedly connected with a rotary supporting sleeve, the position of a supporting annular plate is fixed, and a plurality of supporting units support a first tower body; the anti-wind capacity of the first tower body is improved, and the anti-wind stability of the iron tower body is improved.