28results about How to "Achieve convergence" patented technology

The invention discloses a hydraulic arm safety control method and device based on parallel learning and a high-order CBF, and the method comprises the steps: building a kinetic equation of a hydraulic mechanical arm through a Lagrange method, integrating unmodeled dynamics, structural parameter change and external interference into an uncertain item, and describing the generalized uncertainty of the uncertain item in a linear parameterization form; for the problem of insufficient excitation in a complex environment task, a parallel learning mechanism is introduced, and historical data and real-time data are combined to realize parameter identification. For high relative order safety constraints (such as obstacle distance constraints and joint limiting constraints) in a task space, an obstacle function family is constructed. A dynamic error buffer function is introduced, and a high-order adaptive control barrier function condition is designed. The high-order self-adaptive control obstacle function constraint is embedded into a real-time quadratic programming solving problem, input obtained through optimization solving can keep the track precision, meanwhile, a joint instruction is automatically corrected to prevent constraint failure, and minimum intervention type safety control is achieved.

The invention discloses a design method capable of giving consideration to both toughening and crack path controllability for a brittle material, and belongs to the technical field of fracture mechanics and artificial intelligence crossing, and the method comprises the steps: employing an input coding method based on space-response double-domain fusion to carry out feature extraction; introducing a channel attention mechanism to perform weighted fusion on the extracted double-domain features, and generating prediction results for different key tasks; evaluating the reliability of a prediction result by adopting a phase field verification and closed-loop adaptive optimization mode, and carrying out iterative training and optimization on the neural network; and taking the optimized neural network as a fitness evaluation function of double-target genetic optimization, and performing multi-target optimization on defect generation parameters. According to the invention, through fusion of the spatial domain and the response domain, geometric morphology and dynamic response characteristics are cooperatively extracted, and the prediction precision of complex fracture behaviors is improved; through non-dominated sorting multi-objective optimization under physical constraints, a high-toughness and path-controllable optimal solution is output, and brittle materials are pushed to cross an active controllable fracture design.

This application relates to the field of new energy vehicle charging equipment technology, and discloses a multifunctional mobile vehicle-mounted charging device, including a carrier vehicle. A battery pack and charging module are installed inside the vehicle's cargo compartment. A slide rail is fixedly connected to the top of the cargo compartment, and a support frame is slidably connected to the slide rail. An air extraction component is fixedly connected inside the support frame to extract air from inside the cargo compartment to the outside, thereby accelerating the ventilation efficiency between the inside and outside of the cargo compartment. The bottom end of the support frame facing the rear door of the cargo compartment is connected to the rear door of the cargo compartment via a connecting rod, and the top end is hinged to one end of a drive arm. By directly transmitting the opening action of the rear door of the cargo compartment to the support frame via the connecting rod, the support frame and the air extraction component are driven to slide out of the cargo compartment along the slide rail. This transforms the necessary action of opening the door into the driving force for the deployment of the cooling system and wiring components. The device is ready without additional operating steps, and the linkage process is stable and reliable.

The utility model relates to pharmaceutical equipment technical field especially relates to a kind of powder accumulation prevention wall cleaning device of spray drying tower.It is a kind of powder accumulation prevention wall cleaning device of spray drying tower, including main part, limiting screw rod, locking knob, sliding sleeve, first pivot, folding rod, brush and hinged rod, main part bottom fixed connection has limiting screw rod, limiting screw rod is threadedly connected with locking knob, locking knob bottom periphery fixed connection sliding sleeve, limiting screw rod lower end rotationally connects first pivot, first pivot periphery is cross-distributed rotationally connected with folding rod, folding rod outer end is all fixedly connected with brush, and each folding rod outer side top and sliding sleeve lower periphery between rotationally connected with hinged rod.The utility model is moved up and down along limiting screw rod by rotating locking knob and driving sliding sleeve, realizes the unfolding and folding of folding rod, improves the operation convenience and maintenance efficiency of equipment, reaches the effect that it is easy to operate and efficiently to complete drying tower inner wall cleaning.

This invention belongs to the field of sound-generating device technology, specifically a directional sound-generating device and its manufacturing process. It includes a folding mechanism, a height adjustment mechanism located below the folding mechanism, a rotating mechanism located at the top of the folding mechanism, an angle adjustment mechanism located at the top of the rotating mechanism, and a mounting mechanism located above the angle adjustment mechanism. A directional sound-generating body is fixed above the angle adjustment mechanism via the mounting mechanism. The rotating mechanism includes a fixed base, with a second motor fixedly connected to the left side of the top of the fixed base. A first gear is fixedly connected to the output end of the second motor, and a second gear is meshed with the right side of the first gear. This invention achieves lateral adjustment of the sound-generating device by controlling the rotation of the first gear with the second motor, which in turn drives the second gear to rotate the rotating frame. Vertical adjustment of the sound-generating device is achieved by controlling the up-and-down movement of the mounting frame with a telescopic rod. This solves the problem of traditional sound-generating devices requiring manual adjustment to change the direction of the sound source output, which is labor-intensive.

This application relates to a method, apparatus, and measurement system for dynamic measurement of assembly data. The measurement system includes a moving crossbeam and multiple calibration targets, with a 3D scanner and a laser tracker mounted on the moving crossbeam. The method includes: controlling the moving crossbeam to move to a measurement pose; positioning multiple calibration targets using the laser tracker to construct a geodetic coordinate system and tracking and determining the real-time pose of the 3D scanner in the geodetic coordinate system; controlling the 3D scanner to move and scan to obtain reference point cloud data and key area point cloud data of the assembly workpiece, and establishing the point cloud correlation between the two, establishing a workpiece coordinate system based on the reference point cloud data; based on the workpiece coordinate system, real-time pose, and point cloud correlation, mapping the key area point cloud data to the geodetic coordinate system and performing error correction; and generating an assembly deviation map based on the deviation between the corrected actual measurement data and the expected measurement data. This method can improve the cycle time efficiency and assembly accuracy pass rate of a pulsed assembly production line.

The application relates to the technical field of point cloud data processing, and specifically discloses a UAV point cloud original piece data processing system with a grading naming function; the system comprises the following modules: a boundary division module generates a rectangular boundary suitable for a terrain and screens a to-be-graded original piece; a grading identification module constructs geometric constraints based on a projection distance, completes tower distribution through extreme value judgment and parallel scene processing rules; a naming adaptation module integrates multi-source data to construct a scene feature vector, divides a risk range through clustering, realizes differential naming by adopting multi-source filling and normalization sorting; a feedback checking module locates a preferential analysis interval through deviation analysis, constructs a space neighborhood group and judges a high-risk area, and replaces an original algorithm to complete grading renaming and closed-loop checking by adopting a space index-hash mapping method; the application realizes dynamic optimization of point cloud grading naming, improves grading precision and naming compliance, and provides data support for power transmission line operation and maintenance.

The invention relates to the technical field of solar energy. The multifunctional solar radar velocimeter comprises a solar panel and an adjusting device connected with the bottom of the solar panel, the adjusting device integrates a driving mechanism, a sliding mechanism and a reinforcing mechanism, and the placing angle and the unfolding state of the solar panel can be adjusted so that the light energy absorption efficiency can be improved. The driving device drives the solar panel to rotate through gear transmission so as to adapt to sunlight in different directions; the sliding device drives the solar panel to be stably unfolded or folded by means of transmission of a bevel gear, a rack and the like, the light receiving area is increased, and various installation spaces are adapted. The reinforcing device is locked and fixed to the clamping structure through the tightening assembly, and external force is resisted to prevent loosening and deviation. The three parts work cooperatively, the problems that existing equipment is inconvenient to adjust, unstable in fixation, low in integration and the like are solved, the equipment operation stability and environment adaptability are improved, and the device is suitable for outdoor road scenes and has the characteristics of energy conservation, environmental protection and easy maintenance.

The application discloses a nozzle and belongs to the technical field of fluid injection equipment. The nozzle comprises a nozzle body, a first cavity, a second cavity and a third cavity which are sequentially arranged in the nozzle body, the diameters of the three cavities are sequentially reduced, and steps are arranged between adjacent cavities. The second cavity is provided with an injection cylinder, and the first cavity is provided with a compression ring. The injection cylinder is provided with a second channel, an outer side wall is provided with a third channel, the two channels are communicated through a through hole, and an extension part with a fluid outlet and a guide inclined surface is arranged at the end. The application can reduce pressure loss, improve injection stability and uniformity, is convenient to install, and has a long service life.

The present application relates to the technical fields of flame-retardant protective clothing, and particularly relates to a flame-retardant protective clothing with mechanically adjustable tightness and a method for adjusting the tightness, which comprises a protective vest, symmetrical tightness belts are arranged on the protective vest, and one end of each tightness belt is connected with an adjusting device arranged on the protective vest; the adjusting device comprises a winder and a tightness assembly arranged on the winder; a supporting sleeve is arranged at one end of the winder, a plurality of locking mechanisms for limiting the tightness assembly are distributed along the circumference of the supporting sleeve; and a driving pushing piece is arranged in the supporting sleeve. By pressing the driving pushing piece, the plurality of locking mechanisms are driven to release the complete locking state of the tightness assembly, the tightness assembly is controlled to rotate and the rotation angle is limited through meshing transmission, the situation that the tightness is too tight or too loose during manual adjustment is avoided, and the tightness belt can be gathered or released through forward rotation or reverse rotation.

This utility model provides a pipeline inspection auxiliary device, including a bottom support frame and an extension mechanism installed on the top of the bottom support frame. The extension mechanism includes a base plate, a middle plate, an upper plate, connecting rods, and a linear movement component. The base plate is fixedly installed on the top of the bottom support frame. Four connecting rods are provided and vertically installed at the four corners of the base plate surface. The middle plate is installed on the top of the connecting rods. The linear movement component is disposed on the base plate, and the moving end of the linear movement component is connected to the upper plate. An extension hole corresponding to the moving end of the linear movement component is opened on the middle plate. The bottom support frame supports the extension mechanism. The extension mechanism enters the well from the wellhead and drives the upper plate to move towards the corresponding pipeline opening through the linear movement component, realizing the connection between the middle plate and the pipeline opening, which facilitates the pipeline robot to enter the pipeline for inspection.

The application relates to the field of MEMS sensors and discloses a factory calibration method for humidity drift of a MEMS sensor in outdoor cold-state measurement, which comprises the following steps: S1, high-humidity environment construction and natural attenuation, and S2, dynamic data synchronous acquisition.In the application, a calibration environment without vibration interference and with natural humidity change is constructed, so that the technical problem of a traditional constant-humidity box calibration method is fundamentally solved, the coupling interference of equipment vibration such as a fan and a compressor on the output signal of the MEMS sensor is completely eliminated, the purity and authenticity of the drift data are ensured, the calibration coefficient can accurately reflect the physical correlation between humidity and the sensor output, and secondly, the natural attenuation process of humidity simulates natural scenes such as day-night cycles and weather changes experienced by the sensor in actual outdoor application, and there is an essential difference between the continuously changing humidity path and the constant-humidity box step-by-step stable control, so that the humidity drift coefficient calibrated has stronger generalization ability and compensation applicability in actual working conditions.

This invention provides a multi-FCU collaborative control method and system based on temperature deviation. The method includes acquiring real-time operating parameters of multiple fan coil unit (FCU) units within a controlled area and the current ambient temperature at the corresponding point of each FCU; calculating the local temperature deviation value of each FCU and determining the regional average temperature deviation value based on the overall thermal field distribution of the controlled area; dynamically clustering the multiple FCUs based on the correlation between local and regional temperature deviation values, dividing them into lead units and follower units; determining the initial adjustment increment of the lead unit and calculating the collaborative compensation ratio of each follower unit; and finally synchronously issuing control commands to achieve convergence of the temperature deviation in the controlled area by adjusting the variable frequency fan speed and water valve opening of each unit. This invention can improve the temperature control accuracy of multiple FCUs and the regional temperature uniformity, suppress pipeline pressure fluctuations, and reduce system operating energy consumption.

The invention relates to an intelligent event analysis method and system based on AI, and the method comprises the following steps: obtaining multi-modal original data related to an event, and extracting the feature representation of each modal data; the method comprises the following steps of: extracting features of an event, constructing a hierarchical multi-modal feature graph containing intra-modal sub-graphs and a cross-modal association graph on the basis of the extracted features, sequentially performing intra-modal GAT aggregation and modal perception cross-modal attention calculation by utilizing a graph attention network to obtain global features after cross-modal aggregation, and finally outputting event type probability distribution through a classification layer and identifying event types; and based on the identified event type and the multi-modal feature graph, constructing a layered multi-modal event knowledge graph, analyzing a logical relationship and an evolution path between the events by using time sequence modeling and a causal reasoning model, and outputting an analysis result. Compared with the prior art, the method has the advantages that the multi-modal event type identification precision and accuracy can be improved, the analysis efficiency is improved, and the like.

This application discloses an adaptive optimization method and system for thermal coupling parameters of automotive backlight panels, relating to the field of parameter simulation optimization technology. The specific implementation scheme is as follows: A full-envelope operating condition script is compiled; a thermal model and thermal coupling parameter set are imported; thermal simulations are automatically run in batches sequentially using the full-envelope operating condition script; raw datasets for each operating condition segment are collected; risky operating condition segments are screened; thermal coupling parameter perturbation groups are applied to each risky operating condition segment; high-risk operating condition segments are identified; parameter inversion is performed on each high-risk operating condition segment; and the thermal coupling parameter update strategy for each high-risk operating condition segment is determined, along with the optimal thermal coupling parameter version. This invention can improve the prediction accuracy of the thermal model under complex or extreme operating conditions, thereby avoiding problems such as underestimated junction temperature peaks, distorted hotspot locations, and drifting temperature rise rates. This provides a scientific and reliable data basis for the structural design, safety margin setting, and temperature control strategy optimization of automotive backlight panel radiators.

The application relates to the technical field of computer vision and artificial intelligence, and discloses an AI-based container operation behavior recognition and analysis method and system. The method comprises the following steps: obtaining an initial behavior sequence of a target object, and generating an action segment; based on the generated behavior change rate, a significant feature vector is generated through threshold judgment, a feature map is obtained, a weighted feature combination is generated based on head rotation recognition and time decay mode detection, the weighted feature combination is refined into a micro action category through a multi-layer classification model, similarity matching is performed with a reference behavior library, an optimized behavior feedback sequence is generated, and the adaptability of a behavior recognition framework to a specific scene is judged; if the adaptability is poor, an adjusted behavior change rate is regenerated and iteratively updated, and a final progressive recognition result is output. The application realizes dynamic recognition and feedback optimization of the whole process of container operation, and improves the safety and efficiency of container operation.

This invention discloses an adaptive control method for vehicle queuing based on specified performance and fixed-time sliding mode, relating to the field of distributed vehicle queuing control technology. The method includes: establishing a vehicle dynamics model; designing a piecewise continuous function based on a constant spacing strategy to constrain follower tracking errors; designing an error transformation function with specified time performance constraints to transform the constrained problem into an unconstrained problem and constructing a fixed-time sliding surface; constructing a controller by combining adaptive parameter estimation to compensate for unknown nonlinear terms and disturbances, estimating parameters, and achieving vehicle queuing stability within a fixed time; and integrating specified performance and fixed-time sliding mode control to achieve fixed-time convergence and transient and steady-state error performance, thereby improving the reliability of queuing control.

The application discloses a pipeline shape undetectable flood discharge tunnel construction process, which comprises the following steps: diversion during construction, reverse construction method excavation, determining the radial length range of the new flood discharge tunnel, chiseling off the concrete pipe body of the upper half of the original flood discharge tunnel in the range, cutting off part of the steel bars, drainage, building brick walls at both ends of the original flood discharge tunnel in the removal range, embedding diversion pipes between the two brick walls, removing the concrete pipe body of the lower half of the original flood discharge tunnel, cutting off other steel bars except the required connecting steel bars, building new pack wells between the brick walls, connecting the remaining steel bars into the pack wells, and connecting the pack wells into a whole; connecting the steel pipe sections between the pack wells section by section and completing welding, supporting and pouring between the pack wells and the original flood discharge tunnel, removing the brick walls and the diversion pipes, and backfilling the soil outside the flood discharge tunnel. The pack well is arranged at the flood discharge tunnel, so that the new pipeline can be connected with the upstream and downstream pipelines in quality and quantity even if the pipeline shape is unknown.

The invention belongs to the technical field of deep reinforcement learning, and discloses a multi-agent multi-task collaborative reinforcement learning method based on a space-time fusion architecture, and the method comprises the steps: 1, initializing a task sampling probability, and forming an entity embedding vector sequence and a task embedding vector; step 2, inputting the entity embedding vector sequence and the task embedding vector into an anti-noise feature extraction layer to obtain deep time sequence features; 3, generating a dynamic weight matrix in real time, and obtaining a local Q value output by the intelligent agent; 4, the Transform hybrid network receives a global state vector, a task embedding vector and a local Q sequence of the environment, and gives a global action value; 5, calculating the total loss, and 6, based on the total loss, training an optimization unit to update whole network parameters, and meanwhile, judging whether a preset evaluation round is reached or not. The method has higher anti-interference capability and more stable control performance, and realizes adaptive control of multiple heterogeneous tasks.

The application provides a laser emission module, a laser radar and an electronic device, and relates to the technical field of lasers.The laser emission module comprises a laser source and a light-emitting-direction light-uniformizing reflection element.The laser source comprises a plurality of point light sources which are spaced apart along a first direction.In a plane formed by the light-emitting direction of the laser source and the first direction, the front surface and the rear surface of the light-uniformizing reflection element have an included angle, the main optical axis of an initial laser beam and the front surface of the light-uniformizing reflection element have an included angle β, and the included angle β and the included angle θ are in two non-parallel planes.The initial laser beam is reflected by the light-uniformizing reflection element to be emitted as a first laser beam and a second laser beam.The second laser beam is offset in the first direction relative to the first laser beam when emitted.The laser emission module provided by the application can homogenize the initial laser beam emitted by the laser through system optical design without increasing the number of optical elements in the laser emission module.

The invention belongs to the technical field of biological detection and animal and plant quarantine, and particularly relates to a differential primer and probe-based RPA / RAA-LFS and TaqMan qPCR double-path rapid identification system, a primer and a kit. According to the invention, a mitochondrial ND2 gene segment is taken as a detection target, and a specific primer pair and a specific site are adopted to introduce a locked nucleic acid modified structure probe, so that a quantitative path of RPA field detection is realized; meanwhile, a laboratory quantitative detection path based on real-time fluorescent quantitative PCR (qPCR) is established. The primer and the probe obtained through screening can effectively distinguish sibling or non-target species such as the gossypodium beetle and the red material gossypodium beetle, the polypodium spp. And the pectoralis fuscopoda. The system realizes unification of RPA-LFS field signal quantification and laboratory double-path detection, provides an efficient and accurate molecular detection technology for port quarantine, forestry pest monitoring and invasive species emergency prevention and control, and has significant popularization and application values.

The application relates to a horizontal protection device for a cantilever type unloading platform, which comprises a protection main frame and a horizontal protection net, the protection main frame comprises three frame rods and a plurality of connecting rods, the three frame rods are arranged in a head-to-tail mode to form a U-shaped structure, and correspond to three edges of the unloading platform in suspension, the connecting rods are uniformly distributed along the length direction of the frame rods, one end of the connecting rod is arranged on the frame rod, the other end of the connecting rod is arranged on the unloading platform, the connecting rod and the frame rod form a space for accommodating the horizontal protection net, and the horizontal protection net is bound to the connecting rod and the frame rod. The application has the effect of protecting the external corner area of the unloading platform, thereby eliminating the safety hidden danger of material falling in the external corner area.

The application discloses an independent energy storage participation day-ahead and real-time market connection method and system, and the method comprises the following steps: obtaining quantity and price declaration information of an operating subject, and participating in day-ahead and real-time market by independent energy storage with self-planning or quantity and price declaration; taking the minimum total power generation cost of the system as the target, and constructing a day-ahead market optimization clearing model considering the charging and discharging characteristics of the independent energy storage; obtaining supplementary declaration information of the independent energy storage participating in the real-time market, taking the minimum total power generation cost of the system as the target, and constructing an optimization clearing model for the connection between the real-time market and the day-ahead market considering the SOC limitation of the independent energy storage; and obtaining the unit output plan and clearing price of each operating subject by solving the optimization problem. The application realizes the dynamic coupling of the day-ahead market clearing result and the real-time market operation state by proposing the independent energy storage participation day-ahead and real-time market connection method and establishing the optimization clearing model, plays a flexible adjustment role, and promotes the stable and efficient operation of the power market.

The invention provides a new energy power market pricing optimization method based on an improved particle swarm algorithm, and relates to the field of power market and intelligent optimization. An electric power spot market, a carbon emission permit market and an inertia auxiliary service market are uniformly incorporated into the same optimization search space, and an updatable coupling factor matrix is introduced to describe a cross elastic relationship among the three markets. A cloud-edge-end asynchronous parallel computing architecture is adopted, a cloud side generates a globally optimal solution, an edge side performs parallel iteration, and an end side optimizes and maps a result and returns operation data to compute fitness. Iterative evidence storage, asynchronous locking and automatic settlement are realized through a block chain smart contract, and an on-chain DAO mechanism is utilized to dynamically adjust and optimize the weight to form a closed-loop optimization process. According to the method, premature convergence can be effectively inhibited, and the clearing efficiency and the operation safety of the high-proportion new energy power market are improved.

The utility model discloses a foldable sunshade umbrella which comprises a vertical rod assembly, a sunshade umbrella rod assembly, a sunshade umbrella rod assembly, a sunshade umbrella rod assembly and a sunshade umbrella rod assembly, and the vertical rod assembly comprises a fixed rod and a movable rod which can move up and down relative to the fixed rod; the umbrella stand structure is arranged between the fixed rod and the movable rod and can be unfolded and folded relative to the fixed rod; the flexible part is wound on the fixed rod and can rotate relative to the fixed rod, and at least one part of the flexible part is fixedly connected with the movable rod; the foldable sunshade has an unfolded state and a folded state, when the foldable sunshade is in the unfolded state, the movable rod is shortened relative to the fixed rod, and the umbrella stand structure is unfolded relative to the fixed rod, and when the foldable sunshade is in the folded state, the movable rod is extended relative to the fixed rod, and the umbrella stand structure is folded relative to the fixed rod. And when the opening state and the closing state are switched, the flexible part rotates relative to the fixed rod and drives the movable rod to move up and down relative to the fixed rod.

The utility model relates to the technical field of automatic equipment, in particular to a gathering device for fresh flower packaging. The gathering device for fresh flower packaging comprises a rack, a carrier assembly for clamping fresh flowers and a beating plate assembly for gathering the fresh flowers are installed on the rack, and the beating plate assembly is located above the carrier assembly; the beating plate assembly comprises an air cylinder installation plate installed on the machine frame, a Z-direction air cylinder is installed on the air cylinder installation plate, an ejector rod of the Z-direction air cylinder penetrates through the air cylinder installation plate and then is connected with a lifting plate, and an X-direction beating plate assembly for folding fresh flowers in the X direction and a Y-direction beating plate assembly for folding the fresh flowers in the Y direction are installed on the lower surface of the lifting plate. The X-direction patting plate assembly and the Y-direction patting plate assembly are arranged, so that fresh flowers can be automatically collected; in addition, a pressure sensor is arranged, when the pressure sensor reaches a certain set pressure value, folding is completed, the two motors can feed back the current folding value, and the current packaging size of the bouquet can be calculated.

This invention relates to a multi-channel micro-area angle-resolved monitoring system and method. The monitoring system includes: a relatively movable incident arm and a receiving arm, the incident arm having at least two incident channels and the receiving arm having at least two receiving channels; an ellipsoidal beam path assembly and a holographic interference beam path assembly selectively and positionally adjustable in the incident and receiving channels; and a light source, a photodetector, and a large numerical aperture lens arranged in coordination. The ellipsoidal beam path assembly can be used to measure the ellipsoidal deviation of the sample, and the holographic interference beam path assembly can be used to perform off-axis digital holographic measurement of the sample. Furthermore, the relative movement of the incident arm and the receiving arm, combined with the large numerical aperture lens, allows for adjustment of the incident angle of the incident beam, thereby acquiring more comprehensive multi-dimensional optical signals and more accurately monitoring the optical properties of the sample.