37results about How to "Consider quality" patented technology

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 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 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 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.

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.

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.

The application discloses a double-cavity device and a growth method for solar cell epitaxial wafer growth, which comprises a first reaction cavity, a second reaction cavity, a sample moving cavity, a sample conveying assembly, an exhaust assembly and a heating assembly. The upper ends of the two reaction cavities are provided with air inlet assemblies, the sample moving cavity is communicated with the two reaction cavities, the sample conveying assembly realizes rapid sample transfer, the heating assembly independently controls temperature, and the exhaust assembly leads out tail gas. The growth method comprises steps of cavity purification, temperature stabilization, establishment of bistable growth conditions, alternating growth of multilayer epitaxial layers and the like. The application adopts a double-cavity independent stable HVPE structure, realizes rapid sample transfer without exposure and pollution, obtains an atomic-level steep interface and a precise controllable doping distribution, is suitable for III-V semiconductor material epitaxial wafer growth, and is especially suitable for space high-efficiency solar cell epitaxial wafer manufacturing.

This application discloses a medical image segmentation method based on inter-layer feature fusion and balanced expert input. The method acquires the medical image to be segmented and the prompt information, and inputs the medical image into an image encoder. Low-dimensional bottleneck features are extracted from at least one non-first encoding layer. Multiple convolutional expert outputs are weighted and fused based on routing weights to obtain enhanced bottleneck features. The enhanced bottleneck features from previous layers are read, spatially aligned, aggregated, channel projected, and upsampled to form historical bias features, which are then injected into the main path output. A manifold-constrained multi-branch transformation including residual mixing mapping is performed in the main path, where the residual mixing mapping matrix elements are non-negative and the sum of each row element and the sum of each column element are both 1. Image embedding features are obtained based on the enhanced output features. The prompt information is encoded to obtain prompt embedding features, and then decoded to obtain the segmentation result. This application is beneficial for improving the accuracy, stability, and applicability of medical image segmentation.

The invention relates to a communication-based motorized micro-grid master-slave-free parallel control method, and belongs to the technical field of power electronic equipment control. A plurality of motorized micro-grids are connected in parallel to form a network, the motorized micro-grids are interconnected through a communication bus, and periodically sample and report voltage feedback values to other motorized micro-grids in a power supply network; calculating a mean value based on all reported voltage feedback, calculating voltage deviation based on a voltage feedback set value, generating adjustment power through a voltage inner ring and a current inner ring, outputting the adjustment power to a load, and when the load changes or the voltage set value of the maneuvering micro-grid changes, adjusting the adjustment power to load balance under the condition of ensuring stable power supply. The problem that power supply quality and power supply network reliability cannot be considered in the prior art is solved.

This invention belongs to the field of medical device manufacturing technology, specifically relating to a conveying device for producing syringe plunger stoppers. It includes a base, a hopper, and a spiral channel. The spiral channel is connected to the bottom of the hopper and located inside the base. A sleeve is rotatably connected to the outside of the base, and a geared disc is integrally formed on the outside of the sleeve. A motor drives the sleeve to rotate through gear meshing with the geared disc. The inner wall of the sleeve has interconnected spiral grooves and inclined grooves. Ball bearings are slidably connected to the outside of the hopper, rolling within the spiral grooves and inclined grooves. A threaded sleeve is connected above the sleeve, and a spring is provided between the threaded sleeve and the hopper. A limiting piece is provided at the bottom of the threaded sleeve. An arc-shaped block is slidably connected within a groove on the outer wall of the sleeve, and a push rod that can extend into the inclined groove is provided on the inner side of the arc-shaped block. This invention achieves automated unblocking by causing the hopper to vibrate up and down through the rotation of the sleeve. The vibration intensity is adjustable, balancing anti-clogging effect and stopper protection, effectively improving conveying efficiency and production quality.

The invention provides a wafer regeneration chemical mechanical polishing system and process, and belongs to the technical field of semiconductor manufacturing, and the wafer regeneration chemical mechanical polishing system comprises a buffer unit, a conveying unit, a polishing unit, a cleaning unit and a control unit, the conveying unit, the polishing unit and the cleaning unit are located on the same side of the buffering unit and are sequentially arranged along the first linear path, and the conveying unit is located between the polishing unit and the cleaning unit; the buffer unit comprises a plurality of wafer cassettes, an optical detection station located on one side of the plurality of wafer cassettes, and a transmission mechanism located on one side, close to the conveying unit, of the wafer cassettes; the conveying unit comprises a transfer disc moving along the second linear path; the polishing unit comprises a first polishing assembly and a second polishing assembly which are arranged along the second linear path. Each polishing assembly comprises at least two polishing discs and polishing heads corresponding to the polishing discs.

The utility model relates to the technical field of garment processing, and discloses a garment processing ironing table which comprises a rectangular ironing platform, supporting legs are fixedly installed at the positions of the four corners of the bottom side of the ironing platform, an installation block is fixedly installed on the upper side of the ironing platform, and two garment supporting rods are installed on the side face of the installation block in a sliding mode. And a sliding guide plate is arranged above the ironing platform. According to the utility model, through the design that the flowing cavity in the moving column is communicated with the steam kettle and the connecting hose, steam is uniformly sprayed to the surface of clothes through the V-shaped air outlet groove to soften fibers; and meanwhile, a first sliding block, a spring and a second sliding block in the extrusion structure are elastically matched, so that the downward pressing pressure of the heating plate can be dynamically adjusted. And the steam softening and the pressing action are seamlessly connected. And in cooperation with guide constraint of a limiting groove in the bottom of the guide plate and a limiting block, it is ensured that the movable column stably slides along a preset path, deviation is avoided, efficient and uniform integrated ironing is finally achieved, and efficiency and finished product quality are both considered.

This utility model discloses a limiting mechanism for cutting aluminum plates, specifically relating to the field of plate processing positioning technology. It includes a base on which a positioning and cutting assembly is mounted. This assembly is used to position and cut the aluminum plate. The positioning and cutting assembly includes a first clamping plate mounted on the base, with a second clamping plate disposed at one end of the first clamping plate. The first and second clamping plates work together to clamp and position the aluminum plate. This utility model, through the cooperative sliding clamping of the first and second clamping plates, combined with the anti-slip pads made of rubber on the inner side of the clamping plates, can significantly increase the friction between the clamping plates and the aluminum plate. This effectively prevents the aluminum plate from sliding under the lateral thrust and longitudinal tension of the cutting force, while also preventing direct contact between the clamping plates and the aluminum plate, thus avoiding scratches on the surface and balancing positioning stability and surface quality.

The invention relates to the technical field of image recognition and analysis, solves the technical problems that implicit spatial dependence is difficult to capture, missing report group conflicts are caused, and recognition of progressive abnormal behaviors is prone to delay or misjudgment in the prior art, and particularly relates to a security and protection monitoring comprehensive early warning analysis system and method based on machine learning. The method comprises the following steps: S1, collecting an original video stream monitored in a campus, obtaining campus Internet of Things sensor data, and preprocessing the original video stream and the Internet of Things sensor data to obtain time-space standardized data. According to the method, spatial configuration and time evolution can be explicitly coded, information splitting can be avoided, long-distance and many-to-many complex dependence can be captured in a cross-frame mode, the understanding accuracy of group abnormal behaviors is improved, robustness is greatly improved, and the joint analysis capacity of individual behavior and group interaction is remarkably improved.