40results about How to "Improve system stability" patented technology

The application relates to a self-adaptive self-powered flexible sensing device based on triboelectricity and a preparation method thereof, which comprises a flexible device, a charging module and a single-chip circuit board; the flexible device comprises, from top to bottom, a triboelectric layer, an insulating layer, a potential layer and a battery layer; the triboelectric layer is connected with the charging module, the charging module is connected with the battery layer, and the battery layer is connected with the single-chip circuit board. The system collects signals of multiple electrode ports through a single-chip microcomputer and transmits the signals to a mobile phone or a computer terminal through Bluetooth wireless transmission, so that the convenience and expansibility of data acquisition are improved, and real-time monitoring and remote interaction application can be constructed.

The application discloses a kind of robot friction stir welding force-position hybrid control method, it is related to robot welding control technical field, comprising the following steps: step S10 establishes the hybrid strategy model based on constant displacement control and constant pressure control, the trajectory deviation caused by flexible deformation is compensated by robot dynamic offset function;The constant displacement control monitors welding depth in real time by laser sensor, the laser sensor is installed in 45° oblique direction to the outer wall of motorized spindle, and the collection point is located in the front side of the welding advancing direction, to avoid the interference of flash;The constant pressure control is collected axial upset force by six-dimensional force sensor, and force feedback type impedance control strategy is adopted.The robot friction stir welding force-position hybrid control method compensates the flexible deformation of robot by dynamic offset function, combined with the hybrid strategy of constant displacement and constant pressure control, solves the problem of uneven weld forming under single control mode.

This invention provides a wafer transfer device and a semiconductor processing system. The wafer transfer device includes a carrier stage and a wafer cassette. The wafer cassette includes a wafer cover and a wafer carrier. The wafer carrier is disposed on the carrier stage. The wafer cover has a downward-facing opening and is closable over the wafer carrier. The wafer cover is movable relative to the carrier stage along the Z-axis, allowing it to transition between a closed state and an open state. In the closed state, the wafer cover covers the wafer carrier; in the open state, the wafer cover moves upward to expose the wafer carrier. Therefore, the wafer transfer device of this invention not only improves positioning accuracy and system stability but also helps reduce the cost of the associated transfer robot.

This application discloses a teach-free weld seam positioning method, apparatus, equipment, storage medium, and program product for industrial robots, relating to the field of automation technology. The teach-free weld seam positioning method for industrial robots includes: scanning a preset welding trajectory using a line laser to obtain the line laser scanning trajectory of the preset welding trajectory in the line laser tool coordinate system; transforming the line laser scanning trajectory to determine the tool center point pose of the welding torch end-effector trajectory in the welding torch end-effector coordinate system; and determining the welding point pose of the welding torch based on the tool center point pose. Since the line laser scanning trajectory obtained by scanning the preset welding trajectory using a line laser emitter is recorded, the actual welding torch end-effector trajectory is simulated; by converting the line laser scanning trajectory into the welding torch end-effector tool center point in the welding torch end-effector coordinate system, resource consumption caused by frequent coordinate transformations during welding is avoided, improving system efficiency and stability.

The present application belongs to the technical field of environmental remediation and soil ecological engineering, and particularly relates to a modified iron biochar-humus-sulfate-reducing bacteria (SRB) composite system for realizing efficient immobilization and ecological remediation of cadmium (Cd 2+ ) in heavy metal contaminated soil. The system can enhance the stability of microbial colonies and has the characteristics of physical and biological synergistic passivation, thereby realizing long-term stabilization and ecological remediation of heavy metals.

This invention discloses a method for updating multi-source heterogeneous pipeline data, belonging to the field of data update technology. The method includes: creating a data download task, recording the download range and pipeline type information, and determining whether there is an associated data entry task; if so, waiting for the associated task to execute; creating a data entry task, determining whether there is an associated data download task, and waiting for the associated task to execute; reading multi-source pipeline data within a specified range through a download queue concurrency control mechanism, and assembling and downloading the data format; performing a quality check before data entry through an entry queue concurrency control mechanism, reading the data to be entered into the database and the data in the current database; performing repair and testing on the read data, and comparing the differences between additions, deletions, and modifications; updating the compared addition, deletion, and modification information to the current database, and synchronizing the deletion and modification information to the historical database.

This utility model provides a sunroof with a floating guide, comprising: a sunroof assembly including a front crossbeam and a rear crossbeam arranged in parallel; a side strip frame is fixedly provided on the side edge of the rear crossbeam, and a guide is movably installed between the rear crossbeam and the side strip frame; the guide includes: a Z-axis limiting base plate, an X-axis contact rib, a connecting plate, and a support spring; the Z-axis limiting base plate is used to limit the freedom of the side strip in the Z-axis direction; one end of the support spring is fixedly connected to the rear crossbeam to provide elastic floating support for the guide; the side strip frame includes a rotating mechanism mounted on the rear crossbeam, the rotating mechanism being used to roll up and release the side strip, the side strip passing through the guide area and being driven to connect with the sunroof sunshade, the movement of the side strip controlling the unfolding and retraction of the sunshade. The guide can dynamically adjust its position according to the movement of the side strip or external interference, reducing impact and stress concentration, and improving the durability of the overall structure.

The utility model relates to medicine weighing technical field discloses a kind of discharging mechanism of medicine weighing device, including base, the base lower surface is fixedly connected with connecting plate, the base upper surface is fixedly connected with shell, the discharging assembly includes hydraulic rod, blanking pipe and blanking cover, the blanking pipe is fixedly connected in shell inner wall, the blanking cover outer wall is rotatably connected in blanking pipe lower surface, the blanking cover outer wall is fixedly connected with connecting rod, the connecting rod one end is fixedly connected with connecting block, the blanking cover is arranged in shell interior, the blanking cover output end is fixedly connected in connecting block lower surface. In the utility model, discharging assembly is driven connecting block by hydraulic rod, drives connecting rod to rotate blanking cover, realizes the opening and closing of blanking pipe, accurately adjusts medicine falling rate, avoids excess or deficiency, the design simplifies discharging process, improves weighing accuracy and operation reliability, applicable to high-precision medicine subpackaging environment.

This invention provides a data synchronization method and apparatus. Through a visual interface, the data source and target cluster index parameters are configured. A data synchronization task is created based on the data source and index parameters. The task's time period and triggering rules are set. The task is scheduled according to these rules. An incremental watermark algorithm is used to read data from the data source. Write nodes are dynamically allocated based on load. A search interface combining HTTP / Socket dual protocols and local caching is provided to query data for business scenarios. This improves development efficiency, ensures data consistency and reliability, enhances resource utilization, and reduces data synchronization time. It significantly improves the data synchronization efficiency and system stability of distributed systems and is suitable for high-concurrency, multi-source, heterogeneous data synchronization scenarios.

An oxygen-enriched gas system, comprising a low-pressure oxygen inlet manifold, the low-pressure oxygen inlet manifold being connected with a plurality of single-system inlet pipes, the single-system inlet pipes being connected with a mixer, the mixer being further connected with a single-system fan; a total cut-off valve, a total pipe pressure gauge and a total pipe temperature gauge are arranged on the low-pressure oxygen inlet manifold; a single-system cut-off valve, a Venturi flowmeter and a single-system regulating valve are arranged on the single-system inlet pipe. The oxygen-enriched gas system is provided, the total cut-off valve, the total pipe pressure gauge and the total pipe temperature gauge are arranged on the low-pressure oxygen inlet manifold, the single-system cut-off valve, the Venturi flowmeter and the single-system regulating valve and other components are arranged on the single-system inlet pipe, and the intelligent linkage is realized by cooperating with a main controller, the flow and the pressure can be accurately regulated and controlled, the oxygen temperature and the oxygen concentration are monitored in real time, and the interlocking protection is realized when the abnormality occurs.

The present application relates to the technical field of dairy processing, in particular to a fermented milk and a preparation method thereof. The preparation method comprises the following steps: separating skimmed milk by using a microfiltration membrane and / or an ultrafiltration membrane to obtain casein liquid and whey protein liquid; controlling the lactose content in the whey protein liquid to be less than 5%, and then performing microparticulation on the whey protein liquid to obtain microparticulated whey protein; and taking the microparticulated whey protein, the casein liquid and whipped cream as fermentation raw materials to obtain fermented milk. The fermented milk product prepared by the preparation method has a smooth taste and no obvious powder or particle feeling. Moreover, the texture and rheological properties of the final product can be controlled by adjusting the microparticulation process parameters, so that different types of fermented milk products can be developed by enterprises, and the present application is suitable for popularization and application.

This utility model relates to the field of metal casting technology, and more particularly to an integrated casting and venting device for high-efficiency V-process vacuum-cast aluminum speaker boxes. The integrated casting and venting device for high-efficiency V-process vacuum-cast aluminum speaker boxes includes a base, a lower mold, a support plate, a sliding block, an upper mold, a casting machine, and an injection pipe. The lower mold is fixedly connected to the top of the base, and the support plate is fixedly connected to the rear side of the top of the base. Limiting grooves are formed on both the front and rear sides of the middle of the support plate. The sliding block is slidably connected to the support plate through the limiting grooves. The upper mold is fixedly connected to the front side of the sliding block, and the casting machine is installed on the top of the sliding block. The injection pipe is connected and communicates with the bottom of the casting machine. This utility model, through the sliding connection structure between the venting pipe and the sleeve, and in conjunction with a controller, achieves synchronous venting and mold closing, achieving continuous venting before the mold is fully closed, ensuring the vacuum degree of the cavity, and effectively improving the density of the internal structure and surface quality of the casting.

The invention belongs to the technical field of large-scale deep learning model training, and particularly relates to a video memory scheduling system based on dynamic sequence length assembly line parallel training. The system comprises a dynamic recalculation module, a video memory arrangement and prefetching module and a mapping reconstruction module, the system collects the length and load information of each micro-batch before each round of iteration, establishes an optimization model with the goal of minimizing the iteration time, dynamically generates a re-calculation plan, and realizes inter-stage video memory load balancing; by introducing a collating stream and an asynchronous scheduler outside a main computing stream, overlapping execution of video memory collating and computing prefetching is realized, and the influence of fragment collating on training performance is reduced; a dynamic physical block mapping strategy is designed based on a CUDA virtual memory management mechanism, the physical block granularity is adaptively adjusted according to the idle state of the video memory, and the API calling and context switching overhead is reduced. Experimental results show that the video memory utilization rate and the system stability are remarkably improved, and an efficient video memory scheduling scheme is provided for large model training.

The utility model discloses a kind of gas mixing and supplying device, belong to gas mixing and supplying technical field, including mounting base, several installation grooves are provided on the upper portion of mounting base, several installation grooves are all set up gas distribution tank body, the upper portion of mounting base is provided with limit mechanism, gas distribution tank body is all provided with gas outlet pipe, gas outlet pipe is all communicated with annular gas injection pipe, annular gas injection pipe is communicated with gas mixing tank by several gas guide pipes, gas mixing tank is provided with gas mixing mechanism, gas mixing tank bottom is provided with input pipe, input pipe end is provided with diffusion mechanism, can significantly improve the uniformity and stability of mixed gas, can improve gas mixing uniformity and system stability, avoid subsequent output gas to appear mixed uneven phenomenon, improve product quality.

This invention belongs to the field of temperature difference control technology for upper and lower bridge arms of a power module, and particularly relates to a method for dynamically balancing the temperature difference between the upper and lower bridge arms. The method includes: S1, acquiring the temperatures of the upper and lower bridge arms; S2, calculating the temperature difference and the rate of change of the temperature difference between the upper and lower bridge arms; wherein, T1 equals the upper bridge arm temperature minus the lower bridge arm temperature; if T1 < T2, entering monitoring mode and recording only data; if T1 ≤ < T2, entering a mild adjustment mode and proceeding to S3; if T1 ≥ T2, entering an aggressive adjustment mode and proceeding to S4; wherein T1 and T2 are preset first and second temperature difference thresholds, respectively; S3, reducing the temperature difference by adjusting the PWM duty cycle and dead time; S4, reducing the temperature difference by switching the operating mode and adjusting the switching frequency. This method can achieve active, rapid, and accurate dynamic balancing of the temperature difference between the upper and lower bridge arms without affecting system performance.

The application discloses a voltage division offset compensation control circuit and a voltage division offset compensation method. The voltage division offset compensation control circuit comprises: a voltage stabilizing circuit, which is used for sampling an output voltage VO to form a feedback voltage signal, comparing the feedback voltage signal with a reference voltage VREF, and generating an adjustment control signal to adjust the output voltage VO. A compensation circuit is connected with a feedback node of the voltage stabilizing circuit, used for generating a compensation current IX based on the change of the output voltage VO, and injecting the compensation current IX into the feedback node of the voltage stabilizing circuit to offset the voltage division offset caused by the change of the output voltage VO, so that the feedback signal maintains a constant voltage division ratio under different output voltages. The application can eliminate the resistance voltage division error caused by the change of the output voltage in the voltage stabilizing circuit, and ensure the high-precision output of the voltage stabilizing circuit.

This invention discloses a washing device and its control method and apparatus, as well as a computer-readable storage medium. The washing device includes a washing pump and a centrifugal motor. The centrifugal motor drives a filter screen disposed within a washing chamber to rotate. The washing pump controls the circulation of washing water within the washing chamber. The control method includes: acquiring a sampling current of the washing pump; determining the water flow state within the washing chamber and the washing pump's rotational speed error based on the sampling current; determining control parameters for a preset control algorithm based on the water flow state; controlling the rotational speed error using the preset control algorithm based on the control parameters to obtain a rotational speed adjustment amount for the centrifugal motor; and controlling the centrifugal motor based on the rotational speed adjustment amount to adjust the rotational speed of the filter screen. This allows for precise control of the washing device, significantly improving cleaning efficiency and energy efficiency ratio, while also enhancing user experience and system stability.

The present application relates to the technical field of sewage treatment, in particular to a sewage treatment method, device and system in the deep processing of coal tar. The present application firstly obtains historical data and real-time data of various indexes; further predicts the pollution degree coefficient of the adjusting pool at the corresponding next moment according to the change of the feedforward index; further screens out the abnormal fluctuation section of the pollution degree coefficient and the data of each feedback index; further obtains the response fluctuation section corresponding to the abnormal fluctuation section of the pollution degree coefficient; and finally adjusts the inflow rate of high-concentration wastewater. The present application predicts the wastewater concentration in the adjusting pool through the feedforward index, and combines the response characteristics of the feedback index to predict the influence degree of the wastewater concentration on the sewage treatment, so as to adjust the inflow rate based on the current wastewater concentration change, dynamically predict the system load, accurately control the inflow amount, and effectively improve the sewage treatment efficiency and system stability.

This application relates to the field of computer graphics technology, specifically disclosing a method, apparatus, medium, and device for multi-source data loading in 3D intelligent visualization. The method includes: loading and dynamically adjusting an oblique photogrammetry model to construct an oblique photogrammetry real-world base; generating semantically coded 3D tiles data based on this base; identifying key entity objects, lightweighting their high-precision GLB / GLTF models, and dynamically embedding them into the scene; dynamically parsing and spatially overlaying the KML data associated with the key objects to construct a multi-level 3D scene information system from entity annotation to macroscopic annotations; dynamically coupling KML elements with terrain elevation data to form a high-precision digital elevation base supporting visualization; and optimizing resource scheduling of the base based on a dynamic memory partitioning mechanism to achieve an adaptive balance between terrain complexity and system load. This application can improve the accuracy, efficiency, and system stability of multi-source heterogeneous data fusion.

This application provides a resource scheduling method, apparatus, electronic device, medium, and program product, which can be applied to the fields of big data technology and artificial intelligence technology. The method includes: acquiring multi-dimensional feature data; constructing an input feature vector based on the multi-dimensional feature data, wherein the multi-dimensional feature data includes at least task information and resource information; inputting the input feature vector into an interpretable model, outputting a scheduling mapping function, and determining a target scheduling factor based on the scheduling mapping function; performing hierarchical classification of tasks and resources based on the target scheduling factor to obtain a multi-dimensional combined classification result; and generating a corresponding first resource scheduling result using the interpretable model based on the multi-dimensional combined classification result.

The invention relates to the technical field of databases, and discloses a cloud native database subscription pre-judgment method and device and a medium, and the method comprises the steps: intercepting and analyzing a cloud native database subscription request initiated by a user, and obtaining a resource demand parameter in the subscription request; inputting the resource demand parameters into a pre-trained machine learning model, and predicting actual resource consumption of a database instance corresponding to the subscription request after creation; on the basis of the actual resource consumption, querying the resource state of each dimension of the current cluster in real time, and performing multi-dimensional resource sufficiency evaluation by comparing the actual resource consumption with the corresponding available amount of the resource state of each dimension to obtain a sufficiency evaluation result; acquiring historical load data of the current cluster, and predicting a future load trend of the current cluster through a pre-trained time sequence prediction model; and based on the sufficient evaluation result and the load trend, generating a pre-judgment decision aiming at the subscription request.

This invention discloses a device and method for suppressing inrush current during transformer operation. The device includes: an AC input terminal, a DC blocking capacitor, a voltage phase detection unit, a control unit, and a switching unit. The AC input terminal is connected to a power frequency voltage. The first end of the DC blocking capacitor is connected to one end of the AC input terminal. The second end of the DC blocking capacitor is connected to both the first end of the voltage phase detection unit and the first end of the switching unit. The second end of the voltage phase detection unit is connected to the other end of the AC input terminal. The voltage phase detection unit detects the phase of the power frequency voltage. Based on the phase of the power frequency voltage, the control unit controls the switching unit to conduct at a preset phase, so that the power frequency voltage is connected to the primary winding of the transformer. This invention solves the problems of large inrush current during transformer operation and DC bias burnout during operation, avoids inrush current during operation, protects the transformer and the power grid, and improves equipment lifespan and system stability.

This invention discloses a virtual power plant system scheduling method based on deep reinforcement learning, belonging to the field of power energy optimization management technology. The method includes: collecting multi-source real-time data from the virtual power plant; constructing a causal graph model and generating causal feature vectors and adjacency matrices; inputting the causal feature vectors and adjacency matrices into a reinforcement learning framework, performing enhancement processing through a causal attention mechanism to generate an optimized scheduling strategy; extracting economic and safety objective function values ​​from the optimized scheduling strategy, constructing a multi-objective optimization problem, and using gradient descent to track equilibrium points and obtain a flexible scheduling scheme; inputting the flexible scheduling scheme into a high-fidelity digital twin model, performing behavioral risk detection during simulation operation, and outputting a risk report and correction parameter vectors. This invention achieves a leap from statistical correlation analysis to causal reasoning, solving the problem of blind spots in scheduling decisions under high-dimensional uncertainty.

This invention relates to the field of passivation solution technology, and particularly to a low-temperature, fast-curing, self-healing chromium-free passivation solution, its preparation method, and its application. The passivation solution comprises 48%-58% modified waterborne acrylic resin emulsion, 1.8%-2.5% silane coupling agent, 7%-11% double-modified nano-SiO2, 1.2%-1.5% ammonium zirconium carbonate, 0.3%-0.5% phosphomolybdic acid, 0.2%-0.4% imidazole accelerator, 0.2%-0.4% wetting and dispersing agent, 0.1%-0.3% defoamer, and deionized water to bring the total to 100%. The modified waterborne acrylic resin emulsion contains diacetyl groups, phosphonic acid groups, and hydrazide groups. By rationally selecting and compounding the passivation components, the passivation solution achieves rapid curing into a film at low temperatures, exhibiting dynamic self-healing function, excellent corrosion resistance, and adhesion. Furthermore, the preparation process is simple, and the production cost is controllable.

This invention, entitled "A Camellia Seed Oil Microcapsule Emulsion and Its Preparation Method and Application," belongs to the field of cosmetic technology. The technical problem it aims to solve is the deficiency in existing technologies where camellia seed oil is prone to rancidity, leading to reduced stability and bioavailability of formulations. This invention provides a camellia seed oil microcapsule emulsion system that can slow down the rancidity process, thus achieving a transition from oil-soluble to water-soluble camellia seed oil. The key technical solution is a camellia seed oil microcapsule emulsion, the raw materials of which consist of camellia seed oil, sodium caseinate, chitosan hydrochloride, PE9010, and a solvent.

This application relates to the field of motor control technology and provides a method, device, and medium for positionless control of an air conditioning compressor. The method includes: acquiring the three-phase current of a permanent magnet synchronous motor in the air conditioning compressor and transforming it to an α-β coordinate system to obtain α-axis current components and β-axis current components; inputting the α-axis current components, β-axis current components, and the first α-axis control voltage and the first β-axis control voltage of the previous cycle to a back EMF observer based on an extended state observer to determine the rotor angle of the permanent magnet synchronous motor; determining the second α-axis control voltage and the second β-axis control voltage based on the α-axis current components, β-axis current components, and rotor angle; determining the three-phase duty cycle based on the second α-axis control voltage and the second β-axis control voltage; and driving the permanent magnet synchronous motor to run by controlling an IGBT inverter, thereby improving the robustness and position estimation accuracy of the positionless control of the air conditioning compressor.

The present application provides a vertical furnace segmented cooling and staged heat recycling system and method, the vertical furnace segmented cooling and staged heat recycling system comprising: a vertical furnace having a reduction zone and a cooling zone from top to bottom; a feeding bin arranged at the top inlet of the vertical furnace and a cooler arranged at the bottom outlet of the vertical furnace; a first-stage cooling and heat recycling unit having a first gas supply pipe communicated with the lower part of the cooling zone and a first heat recovery pipe communicated with the upper part of the cooling zone and the upper part of the reduction zone; and a second-stage cooling and heat recycling unit having a second gas supply pipe communicated with the inlet of the cooler and a second heat recovery pipe communicated with the cooler and the feeding bin. The present application can solve the problem of insufficient heat recycling in the existing vertical furnace cooling system, resulting in energy waste.

The utility model discloses a kind of parallel recovery devices of proton exchange membrane fuel cell engine hydrogen system, comprising: outer shell, the outer shell top is equipped with opening and detachable protective cover, the inside of the outer shell is equipped with first installation box and second installation box arranged side by side, the utility model uses parallel dryer group to process electric pile tail gas, significantly improves drying efficiency and system stability. Two dryers work synchronously, double the water absorption capacity, cope with high-humidity large-flow condition;More provide operation redundancy, when single dryer saturation, another can still maintain operation, guarantee reliability. The middle section of the curved pipe connecting two dryers is embedded with a ball tube buffer cavity, when system pressure fluctuation may cause siphon, gas in the cavity forms a physical barrier, effectively prevents gas reflux impact on the stack, protects the safety of core components.

The application provides a dual-source power mine truck isolation type DCDC control method, system and medium, the method comprises the following steps: step 1: the monitoring and comparison of the battery pack state of charge; step 2: the generation of the current reference value; step 3: comparing the current reference value with the actual DC output current feedback value to obtain the current error value, using the deadbeat predictive control algorithm to process the current error value to obtain the outward moving phase angle, and controlling the current flow between each battery pack by real-time adjustment of the outward moving phase angle.The application has the advantages of high efficiency, low maintenance cost, etc., can effectively suppress the electromagnetic interference between the dual-source power circuits, ensure the stable operation of the mine truck, optimize the battery pack energy management, improve the power utilization rate, and ensure that each component can obtain the required appropriate power.

This invention proposes a method and system for optimizing warehouse locations in logistics hubs for multi-production line collaborative production, belonging to the field of manufacturing logistics and warehousing optimization. The method includes: constructing a logistics hub warehouse location optimization model for multi-production line collaborative production; performing multi-objective collaborative optimization using the NSGA-II algorithm based on the logistics hub warehouse location optimization model; outputting a Pareto optimal solution set representing the trade-offs between different objectives; performing simulation verification and sensitivity analysis on the obtained Pareto optimal solution set, predicting the performance of each solution under different production scenarios through logistics simulation, evaluating the impact of changes in key parameters on the optimization objectives, and outputting a final warehouse location configuration scheme with scientific decision support. This invention solves the problems of traditional methods neglecting production line collaboration, insufficient multi-objective balancing ability, and poor dynamic adaptability, achieving global, efficient, and adaptive optimization of logistics hub warehouse locations.