39results about How to "Realize dynamic regulation" patented technology

The invention discloses an automobile part intelligent production control and quality early warning system based on an AI model. Comprising a data acquisition module, a production process monitoring module, an AI analysis engine module, an adaptive control module, a quality early warning module, an equipment collaborative scheduling module, a data governance and model training module, a user permission and audit module and a remote operation and maintenance and knowledge precipitation module. According to the system and the method, an artificial intelligence algorithm and an industrial automation control technology are fused, and deep perception, dynamic regulation and control and defect pre-recognition of a production process are realized. The prediction precision of the method is superior to that of a traditional statistical process control method in a plurality of actual production scenes.

The invention discloses a cement stabilized macadam test piece and a preparation method thereof, and belongs to the technical field of traffic civil engineering. The test piece is prepared from the following components in parts by mass: 85 to 92 parts of graded aggregate, 6 to 12 parts of composite cementing material and 0.3 to 0.8 part of special admixture; the graded aggregate is of a skeleton-transition-filling three-stage structure, and the filling aggregate contains surface modified silicon carbide microbeads; and the special additive contains a slump-retaining polycarboxylic acid water reducing agent and a hydroxypropyl methyl cellulose-xanthan gum composite adhesive. The components of the test piece have a synergistic effect, and through multi-dimensional synergy of aggregate grading, modified filler and admixture regulation and control, the problems of large-particle-size broken stone sinking, uneven aggregate distribution and segregation, insufficient compactness and the like in the forming process of the cement stabilized broken stone test piece are effectively solved; the compactness, the mechanical strength and the durability of the cement stabilized macadam test piece containing the large-particle-size macadam are remarkably improved, and the composition materials of the cement stabilized macadam test piece can be used for base layer construction of high-grade highways and municipal main roads and meet the heavy-load traffic requirement.

The application relates to the technical field of semiconductor bridge electrostatic discharge protection and current protection, and discloses an electrostatic discharge and current protection circuit of a semiconductor bridge, which comprises an ESD protection circuit, a current protection circuit and an NMOS connected in parallel, the ESD protection circuit comprises a bidirectional transient suppression diode and a capacitor connected in parallel, the bidirectional transient suppression diode clamps a transient high voltage by breakdown conduction, the voltage is limited in a safe range, the capacitor reduces a voltage rising rate and suppresses overshoot by shunting and absorbing a transient current, the NMOS provides a low-resistance discharge path, and the voltage and current impact applied to the semiconductor bridge are reduced; the current protection circuit comprises a bidirectional rectifier circuit and a detection circuit; and the NMOS is connected between the detection circuits. The application can realize ESD protection and current protection of the semiconductor bridge, prevents current from damaging the structure, and guarantees the safety of the semiconductor bridge working in an electromagnetic and ESD environment.

The utility model provides a kind of circuit of automatic control computer power supply start, belong to computer power supply technical field, including power access module, power output module, backboard socket module, power access in position detection module, voltage division control module and triode switch module;Power access in position detection module is electrically connected with power access module by backboard socket module, the electric connection voltage division control module of power access in position detection module, voltage division control module is electrically connected with triode switch module by starting control bus, triode switch module is electrically connected backboard socket module, backboard socket module is electrically connected power output module.Power access in position detection module detects the in position condition of power access module, and exports detection signal, to utilize the conduction and cut-off of triode switch module dynamically control the power supply to electric computer, realizes the dynamic regulation and control to computer power supply work and standby state, greatly improves the power supply reliability to electric computer.

The invention discloses a wide-working-condition and high-stability two-phase experiment circulating system and a testing method thereof, and relates to the field of electronic device heat management, and the experiment circulating system comprises a pumping unit, a flow control and pressure stabilization unit, a pressure control unit, a temperature control unit, a condensation unit and a data acquisition unit. According to the experimental system, a wide-working-condition and high-stability two-phase flow cycle test environment is realized through cooperation of the pumping unit and the flow control and pressure stabilization unit, the flow heat exchange performance of the two-phase flow heat exchanger at different inlet flows, supercooling degrees and dryness can be actually tested, and multi-dimensional data such as temperature, pressure and flow state of each key node in a loop can be monitored in real time; the comprehensive performance of the heat exchanger is completely reflected, and experimental basis and design reference are provided for operation of a two-phase flow cooling system of an electronic device and optimization design of the heat exchanger.

The application discloses an elevator speed regulation system based on light energy power generation, which comprises a vibration detection unit, which detects an elevator vibration signal, and sends the elevator vibration signal to a microprocessor unit connected thereto to trigger a wake-up interrupt; the microprocessor unit is connected with a power management unit, the power management unit is respectively connected with a light energy collection unit and an energy storage unit, the light energy collection unit charges the energy storage unit through the power management unit; the microprocessor unit is connected with an elevator main control subsystem, the microprocessor unit collects voltage and speed data and sends the voltage and speed data to the elevator main control subsystem to generate a running speed curve, and regulates the speed according to the running speed curve. Through light energy power supply, and in combination with light energy power and speed, the regulation frequency and the regulation mode in the speed regulation process are judged, dynamic regulation is realized, an elevator regulation system without additional power supply and post-maintenance is provided, and safe, efficient and comfortable operation of the elevator is ensured.

The application relates to a temperature-sensitive adjustable heat rectification porous material and a preparation method thereof, and belongs to the technical field of functional materials and thermal management materials. The temperature-sensitive adjustable heat rectification porous material comprises an asymmetric porous polymer skeleton and a temperature-sensitive polymer network embedded in the interior of the polymer skeleton, wherein the asymmetric porous polymer skeleton has a pore size difference in the thickness direction, one side of the asymmetric porous polymer skeleton is a small-pore structure, and the other side is a large-pore structure. The temperature-sensitive polymer network is introduced into the asymmetric porous polymer skeleton, so that the heat rectification is changed from a static behavior to a dynamic adjustable behavior. Under a low-temperature condition, the temperature-sensitive polymer absorbs water to expand, the pore size of the large-pore side is reduced, the pore size difference is reduced, and the heat rectification ratio is reduced; under a high-temperature condition, the temperature-sensitive polymer is dehydrated to shrink, the pore size of the large-pore side is increased, the pore size difference is increased, and the heat rectification ratio is increased. Through the mechanism, the heat rectification ratio can be adjusted and changed in the range of 25-40 DEG C, and the heat regulation capacity is remarkably improved.

The invention discloses a player emotion perception and experience optimization system based on artificial intelligence, and the system comprises an emotion data collection module which is used for collecting multi-modal emotion data of a player in a game process and carrying out the preprocessing of the multi-modal emotion data; the emotion recognition module is used for acquiring the current emotion category and emotion intensity of the player according to the multi-modal data; the experience optimization decision module is used for generating game experience optimization actions matched with the current emotion category and emotion intensity of the player; and the feedback adjustment module is used for adjusting the game environment parameters according to the optimization action. According to the method, the multi-modal emotion recognition and reinforcement learning decision technology is combined, fusion perception of the face image and the voice signal of the player is achieved, the optimal experience adjustment strategy is generated, the method has the advantages of being high in accuracy and high in personalized adaptation ability, and the immersion, interactivity and stability of a game system are remarkably improved.

The invention provides a hollow fiber nanofiltration membrane cross flow velocity dynamic regulation and control and energy consumption optimization method and system, and the method comprises the steps: building a mixed model of a CNN model and a long short-term memory (LSTM) model through data collection, and extracting the space and time characteristics of the operation parameters of a hollow fiber nanofiltration membrane system; and the concentration polarization index PI is introduced as a membrane surface state characterization index, and the membrane surface polarization degree is parameterized, so that the surface state of the nanofiltration membrane can be identified, and dynamic regulation and control of the cross flow speed of the circulating pump are realized in combination with a reinforcement learning reward function with flux improvement, energy consumption reduction and concentration polarization suppression as targets. Therefore, the operation energy consumption of the system is obviously reduced on the premise of ensuring the effluent quality and the membrane operation stability.

The application discloses a kind of based on edge computing's Internet of Vehicles low latency communication method and system, method includes: edge node obtains historical operation data and obtains real-time evaluation network communication link and the state parameters of edge node itself performance;Edge node is based on historical operation data and real-time state parameter prediction generates communication delay value, and real-time monitoring edge node resource to generate comprehensive load index;When communication delay value exceeds preset delay threshold or comprehensive load index shows that edge node is overloaded, triggers edge node to carry out task migration;Edge node selects another edge node as migration target node, and part of task is transferred to migration target node execution.The application identifies potential high latency state in advance by delay prediction, and then triggers migration, transfers task from high load node to low delay or resource sufficient target node, so as to significantly reduce average response latency at system level, improve service continuity.

The invention provides a pH response type flow pattern regulator suitable for CO2 polluted drilling fluid as well as a preparation method and application of the pH response type flow pattern regulator. The pH response type flow pattern regulator is prepared from the following raw materials in parts by mass: 5 to 10 parts of acrylic acid, 10 to 20 parts of a pH response monomer, 10 to 30 parts of 2-acrylamide-2-methylpropanesulfonic acid, 5 to 20 parts of N-vinyl pyrrolidone, 0.1 to 1 part of an initiator and 100 to 200 parts of water. The flow pattern regulator disclosed by the invention can sense the pH value change of a drilling fluid system caused by CO2 pollution through a pH sensitive group in a molecular structure, and adaptively adjust the interaction strength with clay particles, that is, when the acidity is enhanced, the adsorption capacity is enhanced through group protonation, the aggregated clay particles are effectively dispersed, and the viscosity and shear force of the drilling fluid are reduced; in the pH value rising stage, the stability of the system is maintained through charge density regulation and control, and meanwhile, the filter loss is reduced by improving the mud cake structure.

The application provides a kind of adaptive soft start control method and system based on load prediction, before the start of belt conveyor, the initial load weight value on belt conveyor is obtained;Obtain the initial soft start parameter set corresponding to the load interval where the initial load weight value is located, the initial soft start parameter set includes start time, start curve slope and torque limit value;In response to the input of initial soft start parameter set, start the motor of belt conveyor;Within the first preset time period after the start of belt conveyor, real-time collection of actual load weight value and motor current value in operation;Based on the actual load weight value, obtain the fluctuation range of motor current value;Based on the relationship between the collected motor current value and the fluctuation range, correct the initial soft start parameter set;Real-time feedback of the corrected parameters to motor controller;The application effectively prevents belt slip, belt breakage and other faults, prolongs the service life of the equipment, improves the operation efficiency and safety of the whole conveying system.

The application relates to a base station power monitoring management system, which comprises a monitoring center server and a plurality of communication base stations; the monitoring center server communicates with the plurality of communication base stations; the plurality of communication base stations are divided according to regions; a plurality of communication base stations are divided in each region; each communication base station belongs to only one region; the communication base station is provided with a power data acquisition unit; the power data acquisition unit is used for acquiring the voltage and current of the communication base station and further obtaining the load power; the communication base station uploads the information collected by the power data acquisition unit to the monitoring center server; and the monitoring center server controls the communication base stations in the regions according to the information collected by the power data acquisition units of the communication base stations in the regions. The base station power monitoring management system can realize the dynamic regulation and control of the communication base stations in the regions according to the use conditions of the communication base stations, so that the power can be saved.

The application provides a smart city planning construction method based on edge Internet of Things, applied to the technical field of city edge Internet of Things, construction planning data and basic geographic data of a target planning area are acquired, construction demand data in a construction stage is constructed, a first edge Internet of Things node deployed in a construction area is controlled to collect construction equipment and environment state, node description data is generated, construction demand data and node description data are matched and analyzed, a node correlation degree score is calculated, and the node is divided into network roles and configured with authority according to the score, forming a second edge Internet of Things node, in the construction process, control adjustment parameters are generated based on construction state deviation relations, dynamic control and task allocation adjustment are performed on the equipment, the matching of construction demand and node capability is realized, and construction efficiency, resource utilization and operation safety are improved.

This application provides a method and system for detecting antibiotic pollution in water bodies based on spectral characteristics, belonging to the field of water environment monitoring and analysis technology. First, this application simultaneously acquires the surface-enhanced Raman spectrum and redox potential time-series data of the water sample to be tested. Next, the ratio of the characteristic peak intensities of the target antibiotic is extracted from the spectrum to generate a first feature set. Simultaneously, wavelet packet decomposition is performed on the potential data, and energy entropy is calculated to construct a second feature set. Subsequently, the two feature sets are concatenated, and a mutual information maximization algorithm is used to filter out the target feature subset highly correlated with concentration. Finally, using a support vector projection regression model trained based on a structural risk minimization mechanism, and through kernel function mapping and hyperplane projection operations, the accurate detection of the target antibiotic concentration in the water sample is achieved. This application improves the anti-interference capability and quantitative accuracy of antibiotic detection in complex water body backgrounds.

The invention relates to the technical field of operation and maintenance management, can be applied to financial science and technology and medical health scenes, and discloses a dynamic regulation and control method, device, equipment and medium, and the method comprises the steps: for a request sequence from a same client, calculating at least one behavior characteristic value of the request sequence, the request sequence comprises a plurality of request behaviors sent by the client; calculating a behavior entropy representing the behavior randomness of the client based on the behavior characteristic value; according to the behavior entropy value, the current limiting threshold value of the client side is dynamically adjusted, and the higher the behavior entropy value is, the lower the current limiting threshold value is. The current limiting threshold can be adaptively adjusted to ensure the response speed of a real user and inhibit abnormal behaviors.

The utility model discloses a novel agar salt bridge type electrical stimulation cell culture device which comprises a base, a top cover, a salt bridge positioning module and an electrical stimulation module, the top cover is mounted on the base, and a plurality of groups of optical observation windows are arranged on the top cover; each group of salt bridge positioning modules comprises a base and a salt bridge positioning buckle; an adjusting mechanism is arranged between the salt bridge positioning buckle and the base, and the adjusting mechanism is used for adjusting the height of the salt bridge positioning buckle; the electrical stimulation module comprises a PCB (Printed Circuit Board) and a plurality of groups of electrode columns; the PCB is mounted on the top cover; and the electrode column is arranged on the PCB through a threaded connection structure. The novel agar salt bridge type electrical stimulation cell culture device disclosed by the utility model can be matched with a standard commercial cell culture dish for use, the universality is wider, an experimenter can conveniently observe the cell / tissue state in the commercial cell culture dish, and meanwhile, the electric field intensity gradient can be conveniently adjusted.

The application provides a kind of underground medium vibration energy coupling method, including the delivery of vibration excitation device to underground target area, so that its epitaxial coupling structure is formed with underground medium mechanical embedded coupling state;According to the type of underground medium, the frequency range of vibration excitation signal is determined, the waveform type and coding sequence are determined according to the target vibration response characteristics, and the driving signal is generated accordingly;Control the corresponding periodic mechanical vibration generated by the vibration excitation unit, and transmit it to the epitaxial coupling structure through the force transmission unit, and input mechanical vibration energy to underground medium.The application can realize efficient transmission of vibration excitation energy from device to underground medium, and improve the coupling efficiency of underground vibration energy and the controllability of target area vibration response.

The application provides a computing power utilization rate optimization method and system based on an intelligent calculation chip, and a medium. The method comprises the following steps: collecting real-time operation data of the intelligent calculation chip, preprocessing the real-time operation data, and obtaining standardized computing power state data; obtaining characteristic parameters of a to-be-executed task, analyzing the task characteristic parameters based on a graph neural network, constructing a scheduling model by using a reinforcement learning algorithm, and outputting a computing power scheduling strategy. The computing power scheduling strategy comprises a calculation unit allocation scheme, a task execution order adjustment scheme, and a memory access optimization scheme. The regulated computing power state data is compared with a preset computing power utilization rate threshold, a computing power utilization rate improvement value is calculated, and if the improvement value does not reach a preset target value, data is collected again. If the improvement value reaches the preset target value, the current computing power scheduling strategy is maintained. By constructing a closed-loop optimization system, dynamic scheduling, accurate regulation and control, and whole-cycle optimization of the computing power of the intelligent calculation chip are realized, the computing power utilization rate is improved, and the operation cost is reduced.

The invention discloses a ponding monitoring and early warning system based on edge intelligent processing. The ponding monitoring and early warning system comprises a data acquisition module, an edge intelligent processing unit and a decision module. The data acquisition module is configured at an accumulated water monitoring point and is used for acquiring accumulated water depth, water flow velocity and rainfall intensity data; the edge intelligent processing unit is arranged in the monitoring equipment and is used for locally extracting accumulated water depth change rate and change acceleration characteristics, evaluating data priority, identifying accumulated water state abnormity and dynamically deciding a data transmission strategy based on the priority and an abnormal mark; and the decision-making module generates multi-level early warning information according to the received data and can issue an instruction to adjust the transmission priority of the edge equipment. According to the system, real-time analysis and intelligent early warning of ponding characteristics are realized, the early warning timeliness is effectively improved through edge side data processing and dynamic transmission strategies, the data transmission quantity is reduced, and the stability and adaptability of the system in a complex environment are enhanced.

The application belongs to the technical field of galvanizing equipment, and particularly discloses a furnace nose system capable of removing slag, a method, a terminal and a medium. The furnace nose system comprises a furnace nose body, a working groove for containing zinc liquid is formed in the furnace nose body, and an overflow groove is arranged in the working groove. The system further comprises a zinc pumping pump communicated with the working groove, a zinc blowing pump arranged in the working groove, a liquid level measuring unit for measuring the liquid level of the zinc liquid, and a control unit. The control unit adjusts the operating state of the zinc pumping pump according to the liquid level signal output by the liquid level measuring unit, and controls the zinc blowing pump to spray the zinc liquid to the overflow groove area when the slag removal condition is met, so as to clean the zinc slag formed at the overflow groove on line. The furnace nose system can improve the timeliness and stability of the zinc slag cleaning of the furnace nose area, reduce the frequency of manual intervention, and improve the operation reliability of the continuous hot galvanizing production line.

The invention relates to the technical field of intelligent cleaning, and particularly discloses a damp and hot cleaning sterilizer control method based on steam distribution, which comprises the following steps of: acquiring humidity and saturation data of steam in real time through a humidity sensor and a saturation sensor, and calculating a humidity abnormal coefficient and a saturation abnormal coefficient by utilizing data analysis, so as to evaluate the steam quality; steam with qualified quality is screened out; in the cleaning link, a pressure sensor and a concentration sensor are used for monitoring the pressure and concentration distribution of steam in real time, based on a pressure distribution abnormal index and a steam concentration abnormal index, a target task of each cleaning area of the cleaning and disinfecting machine is combined, an equilibrium coefficient is calculated, and the steam concentration and pressure distribution are dynamically adjusted; and it is ensured that steam distribution of each cleaning area meets the preset standard.

The invention discloses an optical device capable of actively adjusting the position of a focal plane and a preparation method and application of the optical device, and the optical device comprises a thermal optical element which is a variable-refractive-index transparent sheet with the refractive index changing along with the temperature; the heating element is provided with a heating part and an electric wire connected with the heating part, the heating part is arranged on one surface of the thermal optical element, the refractive index of the thermal optical element is regulated and controlled through the temperature change of the heating part so as to adjust the focal plane position, and the heating part is provided with a light through hole for exposing the thermal optical element; the electric wire is suitable for being connected with an adjustable voltage source. The optical device is arranged between a sample and an objective lens, the density of the thermal optical element is changed and the refractive index of the thermal optical element is changed by controlling the working voltage of the heating element and adjusting the temperature of the thermal optical element, so that the zoom function is realized, the purpose of dynamically regulating and controlling a focal plane is realized, the regulation and control that the single step length is less than 10nm can be realized, and the optical device is suitable for a dynamic optical scene.

The application discloses a kind of gas-liquid two-phase mixing type reaction kettle for pharmaceutical intermediates production and drive control method, it is related to pharmaceutical intermediates production equipment technical field.In the application: the bottom of reaction kettle is equipped with gas inlet end, inner cavity is configured with driving shaft and stirring paddle, top cover is configured with gas concentration sensor and multiple inverted cone, and inner cavity is provided with floating mixing disc.The piston ring is arranged on the side of floating mixing disc, the main shaft sleeve and the flow guide pipe are arranged on the top of floating mixing disc, the jet nozzle is arranged on the top end of flow guide pipe, and the liquid outlet of jet nozzle is opposite to the lowest point of inverted cone.The floating mixing disc is provided with flow guide slope and flow guide channel, the flow blocking component is elastically installed at the flow guide channel, a liquid level meter is further arranged, and the reaction kettle is provided with a hydraulic system for driving the floating mixing disc to rise and fall.The application realizes efficient mixing of gas-liquid two-phase by dynamically controlling the rising and falling of floating mixing disc, improves reaction efficiency and product quality, and is suitable for gas-liquid two-phase reaction production of pharmaceutical intermediates.

The invention relates to the technical field of switch cabinets, and discloses an electrical switch cabinet heat dissipation device which comprises a cabinet body, a cabinet top located at the top of the cabinet body, a heat dissipation fan fixedly installed at the bottom of the cabinet top, and a lifting mechanism arranged on the side of the cabinet body and used for manually lifting one side of the cabinet top. The temperature sensor is fixedly installed in the cabinet body, the jacking mechanism is arranged on the side, away from the lifting mechanism, of the inner wall of the cabinet body and used for jacking the other side of the cabinet top, and the lifting mechanism comprises a fan-shaped plate located on the side of the cabinet body; according to the invention, the cabinet top is jacked through cooperation of two sides of a manual mechanism and an automatic mechanism, a three-dimensional heat dissipation channel of which the top and the periphery are through is formed, the problem of local overheating is effectively solved, the protection performance is also considered, and based on the control of a temperature sensor, the heat dissipation efficiency is improved, and the heat dissipation efficiency is improved. And energy conservation and reliable operation are realized while the heat dissipation efficiency is improved.

This invention relates to the field of solid waste conveying technology and discloses a solid waste conveying system and method, including a conveying component, an adjusting component, and a monitoring component. The conveying component includes a pipeline with an inlet and an outlet. The inlet is used to convey solid waste into the pipeline, and the outlet is used to discharge solid waste from the pipeline. The adjusting component includes an adjusting ring and a moving component. The adjusting ring is disposed in the pipeline and is used to adjust the communication area between the outlet and the pipeline. The moving component is used to drive the adjusting ring to move. The monitoring component includes a pressure sensor and a control unit. The pressure sensor is used to monitor the internal pressure of the pipeline, and the control unit is connected to the pressure sensor and the moving component. The control unit moves the adjusting ring to adjust the communication area between the outlet and the pipeline according to the internal pressure of the pipeline monitored by the pressure sensor. The solid waste conveying system of this invention captures changes in the pressure inside the pipeline in real time and triggers an adjusting action at the initial stage of blockage, preventing the blockage from worsening.

The invention discloses an ecological sensitive area construction disturbance threshold value dynamic regulation and control method, which comprises the following steps of S1, acquiring basic environment data of an ecological sensitive area, and performing preprocessing; s2, according to the preprocessed basic environment data, constructing an initial construction disturbance threshold value system in combination with an environmental protection threshold value database, and determining ecological disturbance control references of different construction links; s3, multi-dimensional disturbance indexes in the construction process are monitored in real time based on the intelligent construction technology, the initial construction disturbance threshold value is dynamically corrected, and a construction disturbance threshold value dynamic regulation and control model is constructed; the invention relates to the technical field of ecological protection and engineering construction management. According to the dynamic regulation and control method for the construction disturbance threshold value of the ecological sensitive area, the disturbance index in the construction process is monitored in real time, the initial construction disturbance threshold value is dynamically corrected in combination with the ecological model, dynamic regulation and control of the construction disturbance threshold value are achieved, and the changing ecological environment condition in the construction process can be flexibly coped with.

The invention discloses a preparation method and application of a modified montmorillonite wetland filler based on wetland hydraulic characteristics. The preparation method comprises the following steps: crushing montmorillonite, sieving, washing, freeze-drying, and roasting at high temperature for pre-activation; soaking the obtained product in diluted hydrochloric acid for reaction, washing, drying, and carrying out high-temperature roasting activation to obtain acid modified montmorillonite; the preparation method comprises the following steps: carrying out a ring-opening reaction on GTA and chitosan according to a mass ratio of GTA isopropanol to chitosan, which is optimally designed according to a Box-Behnken response curved surface, so as to prepare a quaternary ammonium salt chitosan modifier; the preparation method comprises the following steps: dissolving a quaternary ammonium salt chitosan modifier in deionized water according to the mass ratio of the quaternary ammonium salt chitosan modifier to the acid modified montmorillonite which are optimally designed on the basis of a Box-Behnken response curved surface, uniformly mixing with the acid modified montmorillonite, carrying out oscillation reaction in a constant-temperature water bath, and washing, centrifuging and freeze-drying after the reaction is completed. The method has the best adsorption and removal effect on pollutants such as phosphorus, oxygen-consuming organic matters, antibiotics and the like.

This invention discloses a laser powder bed additive manufacturing apparatus based on dynamic local thermal field control, belonging to the field of additive manufacturing technology. It addresses the technical problem of low and uneven temperatures within the forming area caused by preheating the forming substrate and then heating the entire powder bed in existing additive manufacturing apparatuses. The apparatus includes a forming chamber and a lifting mechanism within it, a forming substrate, an independent forming base, and a modular stacked heating assembly. The modular stacked heating assembly includes multiple vertically stackable heating units, each with a ring-shaped heating sleeve structure. The heating units are fitted around the independent forming base and around the part to be formed on the independent forming base, and the heating units are dynamically stacked online as the printing height of the part increases. This invention increases the temperature within the forming area through localized heating and enables uniform heating across the entire forming area.

The invention discloses a motor winding end cooling structure which comprises a motor shell and a winding end, a cooling water pipe surrounds the winding end, the motor shell is provided with a water inlet through hole and a water outlet through hole which are communicated with the two ends of the cooling water pipe respectively and connected with a water pump through an external pipeline, and the winding end is provided with a temperature sensor connected with a control circuit. The control circuit adjusts the power of the water pump according to temperature data collected by the temperature sensor, and the cooling efficiency is dynamically adjusted. The water flow intensity can be intelligently regulated and controlled according to the temperature, and the winding end cooling efficiency and the motor stability are remarkably improved.