48results about How to "Consider quality" patented technology

The invention discloses a weight coefficient-free midpoint potential control method and device for an NPC type inverter, and the method comprises the steps: analyzing the influence of a three-level inverter output voltage vector on the midpoint potential based on an NPC type inverter topological structure, deducing the relation between the midpoint potential and the inverter output current, and carrying out the calculation of the NPC type inverter output current. The switching state capable of effectively reducing the neutral-point potential can be screened out by detecting the values of the current and the neutral-point potential; in the model predictive control, the neutral-point potential balance can be controlled by using a specific switch state, and a weight does not need to be added into a value function to calculate the neutral-point potential, so that the influence of the neutral-point potential on the output current in the model predictive control is greatly reduced, the waveform quality of the output current is improved while the neutral-point potential is controlled, and the control precision is improved. And meanwhile, the influence of the middle vector on the midpoint potential is suppressed. According to the method, the virtual vector is applied to model prediction control, so that the influence of the middle vector on the neutral point potential balance is reduced.

The invention discloses a three-dimensional model package arranging method, device and equipment, a medium and a product, and relates to the technical field of three-dimensional (3D) printing.The method comprises the steps that space parameters of a to-be-printed model and a printing area are determined, the to-be-printed model comprises i three-dimensional models, and i is a positive integer larger than 1; based on the model parameters of the i three-dimensional models, the arrangement sequence of the i three-dimensional models is determined, and the model parameters are the contour parameters of the minimum enclosing rectangles of the three-dimensional models; and the i three-dimensional models are placed in the printing area based on the space parameters of the printing area and the placing sequence of the i three-dimensional models by utilizing a preset model printing rule. According to the method, the arrangement uniformity of the printing models can be improved while the package arrangement speed is ensured, the to-be-printed models are arranged in the printing area as many as possible, excessive analysis on the to-be-printed models is avoided, the calculation amount of a processor is saved, package arrangement efficiency and package arrangement quality are both considered, and the package arrangement experience of a user is improved.

The invention belongs to the technical field of intelligent production of concrete members, and provides intelligent production equipment and method for compression pouring of concrete members. A first conveying mechanism is arranged below a first hopper, a second conveying mechanism is arranged at an outlet of the first conveying mechanism, and a second hopper is arranged on the second conveying mechanism; a stirring mechanism is arranged at an outlet of the second conveying mechanism, the stirring equipment is connected with a third conveying mechanism, and a pressing mechanism is arranged at an outlet of the third conveying mechanism, so that full-intelligent production of the concrete compression and pouring equipment is realized; the splicing of the first mold body and the second mold body is judged and controlled according to the detected moisture content information and weight information, and the pouring of concrete is judged and controlled according to the gap information, so that the problem of advanced or lagged mold control is avoided on the basis of ensuring the quality of a concrete stirring finished product, and the production efficiency is improved. And through the first telescopic power source, the second telescopic power source and the third telescopic power source, the complexity degree of mold assembling and disassembling is reduced, and the quality and the efficiency can be both considered.

The invention discloses an etching solution and a preparation method and an etching method thereof, and belongs to the technical field of microelectronics and display panel manufacturing. The etching liquid comprises the following components in percentage by mass: 50-70% of phosphoric acid, 5-30% of acetic acid, 5-15% of nitric acid, 0.1-0.5% of a water-soluble polymer, 0.05-0.3% of a boron-containing compound, 0.05-0.5% of an etching control agent and the balance of water. The water-soluble polymer is selected from one or more of water-soluble polymers containing a hydroxyl group, an amide group, an ether bond or a pyrrolidone group. The etching solution contains a specific water-soluble polymer, a protective layer can be formed on the surface of the photoresist, attack of high-concentration acid to the etching solution is effectively inhibited, and the cracking problem is avoided; meanwhile, through the synergistic effect of the boron-containing compound and the azole etching control agent, the etching rate, the slope angle and the key size loss can be accurately controlled, and therefore the excellent etching morphology meeting the requirement is obtained.

The invention provides water pipe rust removal equipment for a water conservancy project, and belongs to the technical field of water pipe rust removal equipment. Comprising a fixed frame, a multi-stage telescopic rod is fixedly connected to the fixed frame, a mounting seat is assembled at the tail end of the telescopic rod of the multi-stage telescopic rod, fixed seats are symmetrically mounted on the two sides of the mounting seat, a supporting frame and a connecting seat are symmetrically connected to the top and the bottom of the mounting seat, and movable seats are arranged in the fixed seats in a sleeved mode; the tail end of the movable seat extends to the outer portion of the fixed seat and is provided with a grinding tool base, and a grinding head is arranged in the grinding tool base in a sleeved mode. According to the water pipe rust removal equipment for the water conservancy project, by arranging the sand blasting assembly, the grinding tool base and the grinding head, sand blasting rust removal and grinding rust removal are combined through the water pipe rust removal equipment for the water conservancy project, primary rust removal is conducted on the inner wall of a pipeline through grinding of the grinding head, and secondary rust removal is conducted through the sand blasting assembly; therefore, the quality and the efficiency of the equipment during pipeline inner wall rust removal operation are both considered.

The invention discloses an unmanned aerial vehicle adaptive path planning method based on risk triggering and local optimization. The method comprises the following steps: (1) establishing an unmanned aerial vehicle motion and obstacle environment model; (2) constructing an enhanced artificial test field and calculating resultant force; (3) calculating a risk index and generating a trigger signal; (4) executing PSO local re-planning during triggering; and (5) updating the position of the unmanned aerial vehicle and outputting a planned path. The invention provides a PSO-APF hybrid single unmanned aerial vehicle path planning method based on event triggering, and the method achieves the real-time, safe, smooth and efficient path planning in an obstacle environment through the construction of an enhanced artificial potential field model, a risk index and event triggering mechanism, a self-adaptive local re-planning window and a PSO optimization module. And a closed-loop process of potential field guidance, risk assessment, event triggering, local optimization and path updating is formed.

The invention discloses a zooming method, a shooting module, terminal equipment and a storage medium, the zooming method is applied to the shooting module, the shooting module comprises a plurality of cameras and an image processing module, and the zooming method comprises the following steps: obtaining a zooming instruction; wherein the zoom instruction carries a mixed zoom ratio k, and k is greater than 0; and in response to the zooming instruction, carrying out mixed zooming processing through the plurality of cameras and the image processing module, and adjusting the focal length of the shooting module to be a k-time focal length.

The utility model discloses a multi-layer insulating glue pressing device for a dispensing driving plate, which is applied to the technical field of electronic engineering, adopts a two-side clamping design, can effectively improve the pressing stability and precision of parts, can uniformly distribute pressure, avoids deviation or deformation of a glue layer caused by single-side stress, and improves the product quality. Two-side clamping can adapt to parts of different sizes, the production compatibility and efficiency are improved, the manual adjustment time is shortened, and the clamping device is suitable for the automatic production scene of electronic elements; according to the vertical multi-layer synchronous pressing design, the production efficiency can be remarkably improved, accurate pressing of multiple parts can be completed at a time, the time consuming problem of layer-by-layer operation is avoided, it is ensured that all layers are evenly stressed through the structure, the adhesive layer thickness deviation or dislocation risk is reduced, meanwhile, the consistency of insulating performance is kept, and space is saved through vertical layout.

The invention relates to the technical field of animation rendering, in particular to an animation scene fixation point rendering system based on eye movement tracking, which comprises a semantic attention modulation module, a rendering area dynamic construction module and a layered sample distribution rendering module, the semantic attention modulation module generates an attention diffusion diagram of semantic modulation based on the time sequence semantic importance maps of the current animation frame and the preorder frame and the current instantaneous fixation point data; a rendering area dynamic construction module adaptively constructs a core rendering area and a gradual transition rendering area according to the attention diffusion diagram; and the layered sample distribution rendering module implements ray tracing sampling of different sample numbers on the core rendering area, the gradual transition rendering area and the background area on the GPU. Compared with the prior art, the image quality of the gazing area is improved under the limited computing power, and the overall visual transition is kept smooth.

The application discloses a high-precision flexible printing method on common coated paper. In view of the problems of poor flatness of common coated paper, easy blocking of existing flexible printing, loss of high-light screen dot, screen dot expansion, and unstable mass production quality, the application adopts micro-hole screening and AM / FM mixed zoning screening processing of original documents, selects and matches high-precision sleeves and gulf stream type high-line-number screen rollers, adjusts and controls the screen roller and the printing plate pressure and the printing plate and the coated paper printing pressure through two-stage pressure calibration, matches and optimizes the water-based ink parameters and the segmented printing speed, and is matched with online quality control. The application can effectively inhibit the blocking, retain the high-light small screen dot, improve the overprint precision and the mass production stability, and realize the high-line-number high-precision flexible printing on common coated paper.

The application discloses a parasitic capacitance-aware standard cell routing method, and belongs to the technical field of integrated circuit design automation; a soft prompt is generated through a strategy model to guide a solver in parallel, a legal routing solution is obtained through conflict repair of the solver; the legal routing solution is encoded into a two-dimensional multi-channel density map and is evaluated through a parasitic capacitance agent to obtain a normalized capacitance cost; the legal routing solution is taken as a pseudo label, and a cost weighting strategy is updated according to the normalized capacitance cost; and final candidates are screened and verified to obtain a final layout. The application takes into account the optimization quality and manufacturing feasibility; meanwhile, fast search of large-scale candidate topologies is realized, and the standard cell layout synthesis efficiency is significantly improved.

The application discloses a video advertisement intelligent insertion method and system based on semantic segmentation and multi-modal context fusion. Through pixel-level semantic mask and multi-frame time sequence analysis, the space gap area available for advertisement embedding in the video is automatically identified, and background stability is judged in combination with structural similarity and brightness change and other indexes. A multi-modal context modeling device is constructed, a context situation vector is generated through a cross attention mechanism by fusing a character emotion vector, a video rhythm vector and a scene structure vector, and an insertion suitability score is output. When the score reaches a set threshold and the gap area meets the conditions, the system performs advertisement generation and visual fusion operation, realizes natural advertisement insertion consistent with the original video content style. The method is suitable for various content platforms such as short videos and live broadcasts, and experiments show that the click rate and the complete play rate can be significantly improved, and the jump-out rate can be reduced.

The invention discloses a method for batch production of thick DC03 cold-rolled steel strips on a silicon steel production line. The method comprises the steps of converter smelting, vacuum treatment, continuous casting, hot rolling, acid rolling and continuous annealing. A unique annealing and stepped controlled cooling process is adopted; the DC03 comprises the following chemical components in percentage by mass: less than or equal to 0.0030% of C, less than or equal to 0.030% of Si, 0.15%-0.25% of Mn, 0.020%-0.055% of Alt, 0.050%-0.065% of Ti and the balance of Fe and inevitable impurities. On the premise of ensuring the mechanical properties (especially elongation and r value) of the product, the actual temperature of the strip steel at the outlet of the furnace area and in the subsequent process is greatly reduced, the problem of scalding of the rubber roller is fundamentally avoided, and stable and batch production of the thick DC03 (1.0-1.2 mm) on a silicon steel production line is realized.

The invention relates to the technical field of motor control, in particular to a permanent magnet motor model predictive current control method based on a current source type inverter. Comprising the following steps: collecting the operation state quantity of a motor system, and carrying out Park conversion to obtain an operation measured value; according to the operation measured value, an alternating current side parallel filter capacitor branch model and a permanent magnet synchronous motor mathematical model are established, a unified discrete prediction model is constructed, and an inverter output current vector and a capacitor current in the next period are obtained through calculation; constructing a capacitance current steady-state reference component and a capacitance current deviation component; and constructing a cost function, selecting an output current vector with the minimum cost function as an optimal control vector of the current control period, and generating an inverter switch driving signal to drive CSI to operate. According to the method, stator current tracking and alternating current side oscillation suppression are considered at the same time under a unified prediction model framework, and compared with a traditional strategy, the dynamic response speed and the steady-state waveform quality can be better considered.

This invention relates to the field of intelligent manufacturing equipment technology, specifically to a method for injection molding of anti-slip parts, comprising the following steps: collecting ejector pin trigger time and three-dimensional coordinates to construct a contact sequence; extracting wall thickness and elastic modulus from mold files to form stiffness data; analyzing ejector pin direction, offset relationship, and posture disturbance trend based on the centroid distribution of the three-dimensional model; dividing mass blocks and identifying demolding sensitive areas; determining corresponding driving parameters; implementing deviation compensation in conjunction with real-time displacement feedback; and generating injection molding processing instructions. In this invention, the demolding force relationship is constructed based on the ejector pin trigger sequence and spatial position; sensitive areas and offset risks are identified in conjunction with wall thickness, elastic modulus, centroid distribution, and ejector pin direction; the ejection output is adjusted according to the target block direction; and displacement feedback and deviation compensation are used to suppress posture fluctuations, improve demolding coordination, reduce extrusion misalignment and jamming risks, and ensure product surface quality and processing stability.

The invention belongs to the technical field of inspection path planning, and particularly discloses a fire-fighting equipment intelligent inspection path planning method based on the Internet of Things, and the method comprises the steps: recognizing a passing fire-fighting hidden danger point, a track fixed deceleration point and a track state hidden danger point as target deceleration points; performing risk grading on each target deceleration point, matching a reference passing speed, and calculating an inspection task completion efficiency index and an inspection data quality index of each path; dynamically adjusting data quality index weights according to severity and marking time of hidden dangers in historical fire protection logs; and finally, based on the efficiency index, the quality index and the dynamic weight, calculating a comprehensive recommendation index through weighted fusion, and determining the path with the maximum index as a target inspection path. According to the invention, deep fusion of physical structure constraint, structure health state and fire-fighting hidden danger is realized, so that the data acquisition quality of a high-risk area can be ensured preferentially while the inspection efficiency is ensured.

The embodiment of the invention provides a video coding method and device, and is suitable for video processing intelligent equipment, the video processing intelligent equipment can comprise security equipment, such as IPC (Internet Protocol Camera), vehicle-mounted video processing equipment or image processing equipment, and the video coding method comprises the following steps: obtaining an image frame in a target video; when the image frame is the first frame, coding the first frame according to the quantization parameter of the first frame; when the image frame is a target frame after the first frame, adjusting the quantization parameter of the previous frame according to the content complexity, the motion amplitude, the ratio of the decoded key frame to the forward prediction coding frame and the peak signal-to-noise ratio to obtain the quantization parameter of the target frame; and coding the target frame according to the quantization parameter of the target frame. According to the embodiment of the invention, adaptive adjustment of the quantization parameter is realized.

The invention relates to a high-elasticity light insole and a shoe. The high-elasticity light insole is prepared from the following components in parts by weight: 23 to 43 parts of modified TPU (thermoplastic polyurethane), 36 to 67 parts of EVA (ethylene-vinyl acetate), 0 to 20 parts of toughening agent, 4 to 10 parts of ethylene propylene diene monomer, 3 to 4 parts of titanium dioxide, 0.4 to 0.8 part of octadecanoic acid, 0.4 to 0.8 part of zinc stearate, 1 to 1.5 parts of zinc oxide, 0.5 to 0.6 part of cross-linking agent and 7.9 to 8.2 parts of foaming agent. The modified TPU is prepared from the following components in parts by weight: 80 to 120 parts of polyester TPU, 0.5 to 3 parts of a grafting monomer, 0.1 to 0.5 part of an initiator, 0.25 to 1.5 parts of an assistant cross-linking agent, 0.25 to 1.5 parts of an anti-scorching agent and 0.1 to 0.5 part of an antioxidant. The high-elasticity light-weight insole has the advantages of being high in elasticity and light in weight (low in specific gravity), the insole is prepared in a chemical foaming mode, the process is simpler, the operation difficulty is lower, the cost is lower, the quality of a finished product and the simplicity and convenience of the process are both considered, and the quality level of the chemical foaming insole is greatly improved. The shoes with the insoles are particularly suitable for being worn during sports, and horizontal improvement can be brought to runners.

This application relates to the field of crystal growth technology and discloses an integrated seed wafer assembly and its fabrication method. The fabrication method of the integrated seed wafer assembly includes: forming a carbon film on the silicon surface of a seed wafer to obtain a seed wafer containing the carbon film; forming a first adhesive layer on the surface of the carbon film away from the seed wafer; forming a second adhesive layer on any surface of a graphite plate; and bonding graphite paper between the first adhesive layer and the second adhesive layer to obtain an integrated seed wafer intermediate; subjecting the integrated seed wafer intermediate to gradient hot pressing to obtain an integrated seed wafer; wherein the gradient hot pressing includes at least two hot pressing operations with increasing temperature gradients. The integrated seed wafer assembly obtained by this method exhibits high bonding strength between the seed wafer and the graphite component. Furthermore, using this integrated seed wafer assembly during crystal growth helps improve the quality of the wafer.

This invention belongs to the field of machining technology and relates to a magnetic reluctance type dynamic hole cold extrusion device. It includes a housing with a magnetic loading assembly, which includes a support guide rail assembly on the housing. A cylindrical shot guide rail is mounted on the support guide rail assembly, and a coil is fitted onto the shot guide rail. A shot is fitted inside the shot guide rail. A mandrel assembly is located inside the housing on one side of the shot guide rail. The mandrel assembly includes a detachably connected boss mandrel and a non-boss mandrel. The end of the boss mandrel is used to connect to a mandrel. A guide buffer assembly includes a first mass block inside the housing. One end of the first mass block is connected to the shot, and the other end of the first mass block is connected to the end of the non-boss mandrel. At least one buffer block is provided on the first mass block, located near the shot. A limiting ring is fitted on the shot guide rail and is used to match the buffer block to achieve limiting. Using this invention, the mandrel is easy to disassemble, the surface quality is high, and the working efficiency is high.

The invention relates to a power transformation equipment local area defect generation method. The method comprises the following steps: determining a defect type possibly existing on each piece of target power transformation equipment; the method comprises the following steps: for any target power transformation equipment, acquiring a plurality of normal power transformation equipment images and a plurality of original defect images of the target power transformation equipment to obtain a defect-normal image data set; wherein the normal power transformation equipment image is an image of the target power transformation equipment in a normal state, and the original defect image is an image of any power transformation equipment containing at least one defect type; and training the original ADD-GAN model based on the plurality of defect-normal image data sets to obtain a trained ADD-GAN model, and the trained ADD-GAN model can generate a local defect equipment image according to a normal power transformation equipment image of any input power transformation equipment and an original defect image containing any defect type.

This invention provides a method for training a multi-task processing model and related products. The method includes acquiring training data for the multi-task processing model and multiple teacher models, wherein the multi-task processing model is configured to perform multiple text analysis tasks in speech synthesis, and each teacher model is configured to perform a single text analysis task; determining a target loss for the multi-task processing model based on the prediction results of the teacher models and the multi-task processing model on the training data; and optimizing the training of the multi-task processing model based on the target loss. Through the technical solution of this invention, the multi-task processing model can be trained to be applied to multiple tasks simultaneously, breaking the traditional pipelined combination analysis method and achieving a balance between quality and performance. In addition, this invention also provides a method for speech synthesis.

The application discloses a kind of cell therapy injection constant temperature control integrated machine and its control method, belong to the technical field of therapeutic injection.The cell therapy injection constant temperature control integrated machine includes turnover box, oscillation and shaking mechanism, temperature regulation module and cell therapy injection flow control module.Oscillation and shaking mechanism is arranged in turnover box, can be stabilized clamped injection and oscillate and shake evenly when using, avoid injection breakage pollution, guarantee stem cell suspension state;Temperature regulation module can be accurately adjusted according to the requirement of transportation preservation, back to the inside temperature of turnover box, maintain stem cell activity and avoid cold stimulus;Flow control module can accurately control the flow rate of injection in output pipeline, adapt to different patient treatment needs.Four modules work together, realize cell therapy injection whole process safe and accurate control, simplify operation process, reduce medical work intensity, be convenient for multi-scene adaptation, provide strong guarantee for standardization of cell therapy.

The invention discloses a close-range air combat maneuver decision method based on improved DDPG. First, a kinematic model of a UAV is established, and a one-to-one close-range air combat simulation confrontation scenario and a victory and defeat judgment model are established. The air combat decision process is converted into a Markov decision process, and the state-action space of the UAV is designed. A reward function model based on the target sight angle and relative speed is designed according to the victory and defeat judgment model, and the exploration of space and the use of experience of the intelligent agent are balanced by adding attenuated noise. The four-tuple generated by each decision made according to the air combat state is stored in the memory bank, and the strategy network is sampled and trained from it. The Actor network and the Critic network are updated proportionally to improve the stability and decision-making efficiency of the air combat training process. Game confrontation training with enemy UAVs based on matrix countermeasures can generate maneuver decision instructions that meet the expected needs, and achieve the air combat advantages of occupying the enemy first, attacking the enemy first, and avoiding the enemy first.

The invention belongs to the technical field of semiconductor processing. The invention provides a treatment method of a bonding surface of a silicon carbide substrate and application of the treatment method, and the treatment method uses a combined polishing solution to perform chemical mechanical polishing on the bonding surface of the silicon carbide substrate, the combined polishing solution comprises a polishing solution A containing nanocrystalline cellulose as an oxidizing agent and a polishing solution B containing bacterial cellulase as a catalyst, through cooperation of the polishing solution A and the polishing solution B, in the polishing process, the nanocrystalline cellulose is subjected to enzymolysis to release hydroxyl free radicals, oxidation reaction is conducted on the hydroxyl free radicals and silicon carbide to generate a surface modification layer, and the surface modification layer is formed. Therefore, the surface hardness is reduced, the polishing rate is improved, finally the atomic-scale flatness of the bonding surface of the silicon carbide substrate is improved, the bonding surface quality of the silicon carbide substrate is effectively improved, and the bonding quality of the composite substrate obtained through bonding is effectively improved.

The present invention discloses a low-grade micro-fine graphite flotation process, comprising the following steps: the raw ore is subjected to a grinding-roughing process after coarse crushing, medium crushing and fine crushing to obtain a coarse concentrate and a roughing tailing; the coarse concentrate is subjected to a re-grinding-double-selection process, which is repeated at least four times to obtain a graphite concentrate product; wherein a modified composite agent is added during the roughing operation; and the grade of the raw ore is not higher than 12%. By adopting the technical solution of the present invention, the flotation agent is modified to be a composite flotation agent, and the modified composite collector is in more sufficient contact with the micro-fine graphite, reducing the foam viscosity, and achieving a fixed carbon content of 96% and a recovery rate of 90% for the graphite concentrate product.

This invention discloses a pulse power supply control method applied to electrical discharge machining (EDM), which includes multiple machining parameters. The pulse power supply control method includes the following steps: classifying the multiple machining parameters into a first category of parameters and a second category of parameters, wherein the first category of parameters includes at least one of discharge polarity selection, absorption circuit selection, inductor circuit selection, and voltage level; and the second category of parameters includes at least one of pulse duration, pulse interval duration, and discharge current value; restricting the first category of parameters to be updated only before the start of EDM; and detecting whether the discharge current value and / or discharge voltage value are within a preset range; if the discharge current value and / or discharge voltage value are within the preset range, then the second category of parameters to be updated is cached, and the second category of parameters is updated only during the pulse interval; if the discharge current value and / or discharge voltage value exceed the preset range, then the second category of parameters is updated during the pulse duration.

The present invention provides a filter device, a control method and an air conditioner, wherein the filter device comprises a filter, a first cleaning member and a second cleaning member, the filter comprises a first mesh and a second mesh, under the action of a first retracting and unreeling mechanism, the first mesh can move along a first direction; under the action of a second retracting and unreeling mechanism, the second mesh can move along a second direction; when the filter is dirty and clogged, the first cleaning member can remove dust on the first mesh and the second cleaning member can remove dust on the second mesh; the process of cleaning the filter is simplified, the filter is cleaned more thoroughly, and waste of water resources is avoided; the filter device also comprises a first toggle mechanism and a second toggle mechanism, according to the air quality, the first mesh is moved by the first toggle mechanism, and the second mesh is moved by the second toggle mechanism, thereby adjusting the mesh size of the filter, taking into account both filtering capacity and wind resistance, ensuring the air intake flow rate and air intake quality, and improving the energy efficiency of the air conditioner.

The utility model aims at providing a kind of magnetic shoe inner arc polishing device, including frame body and polishing subassembly, lifting plate is slidably arranged on frame body, polishing subassembly includes base, clamping ring, conical grinding disc and driving part, base is set on frame body, the both ends of clamping ring axial direction are reversibly covered on base, clamping ring is used to clamp several magnetic shoes, to make each magnetic shoe jointly enclose pipe shape structure, driving part is set on lifting plate, conical grinding disc is set on the output shaft of driving part, lifting plate drives driving part to slide down, to make conical grinding disc polish the inner arc edge of pipe shape structure.