117results about How to "Solve needs" patented technology

The invention relates to the technical field of legal consultation, and discloses a legal consultation report generation system based on a legal knowledge graph, and the system comprises a data collection module which is used for collecting data from a legal database, a user behavior record and an interdisciplinary data source; the data cleaning and preprocessing module is used for carrying out standardization processing and abnormal value detection on the collected data; the invention also discloses a legal consultation report generation method based on the legal knowledge graph. The method comprises the following steps: collecting legal data, user behavior data and interdisciplinary data from a plurality of data sources; performing cleaning and standardization processing on the collected data, wherein the cleaning and standardization processing comprises text standardization and abnormal value detection. The user satisfaction is improved by analyzing user feedback, providing personalized consultation and adopting a dynamic adjustment mechanism to respond to requirements in real time, and meanwhile, the system integrates interdisciplinary data and combines psychological and sociological results, has continuous optimization and self-learning capabilities and realizes intelligent updating of the knowledge graph.

The invention belongs to the technical field of ship and ocean engineering, and discloses a ship seakeeping intelligent forecasting method and system based on a physical information neural network. According to the method, a CFD-RAO method is combined with PINNs, and rapid and high-precision prediction of ship seakeeping is realized by constructing a coupling model of a physical equation and a neural network loss function. According to the invention, rapid and high-precision prediction of ship seakeeping is realized. The method not only can effectively cope with multi-degree-of-freedom coupling motion under complex sea conditions, but also has high real-time performance and adaptability, and provides more scientific and reliable technical support for ship design and navigation safety.

The invention belongs to the field of flow heat transfer testing devices and the technical field of semiconductor chip and integrated circuit packaging heat dissipation, particularly relates to a flow heat transfer testing device and method for a 3DIC, and aims to solve the problem of heat management experiment testing of a 3DIC structure under the condition of high heat flux. The device comprises alternately stacked open type heating sheet slots, micro-channel modules, MCH ceramic heating sheets, interlayer communication columns, a flow distributor and a plurality of temperature measuring elements. Through a reasonably designed fluid distribution system and a precise heat conduction structure, an equivalent substitution experiment scheme of a real 3DIC is realized, the problem of small-space temperature measurement point and heat source arrangement is solved, and the problems of non-uniform flow distribution of gas-liquid two-phase flow in a variable cross-section sub-runner and the like are solved. The device has a real-time temperature monitoring capability, is suitable for thermal management research and multiphase flow pattern observation of 3DIC, and provides a scientific basis for optimization design and performance improvement.

The invention discloses a typical fault simulation test platform for a real-type power distribution network of a low-voltage transformer area, as shown in Figure 1, comprising a low-voltage transformer area simulation structure which is connected with a transformer area fusion terminal in a wireless mode. The low-voltage transformer area simulation structure is further connected with a low-voltage fault simulation device and low-voltage intelligent equipment through wiring terminals in a circuit, and the low-voltage fault simulation device and the low-voltage intelligent equipment are connected with the low-voltage transformer area simulation structure in a wireless mode. The low-voltage intelligent device is also connected with the low-voltage fault simulation device and the transformer area fusion terminal in a wireless mode. The invention also discloses a method for testing by using the typical fault simulation test platform for the real-type power distribution network of the low-voltage transformer area. According to the typical fault simulation test platform for the real-type power distribution network in the low-voltage transformer area, the running state of the power distribution network in the low-voltage transformer area can be truly simulated, various typical faults of the low-voltage power distribution network can be reproduced, and the problem that an existing test platform cannot achieve a real test effect is solved.

The invention relates to a method and device for determining a verification mode, electronic equipment and a storage medium, and the method for determining the verification mode comprises the steps: obtaining to-be-updated scene information based on a verification updating instruction, determining a verification request type and a verification mode according to the scene information, and carrying out the target evolution through employing the verification request type and the verification mode, the verification combination information is obtained, and then the target verification mode corresponding to the verification request type is determined based on the verification combination information, so that the target verification mode matched with the verification request type is determined for the verification request type. The problem that the scene requirement is not matched with the verification mode when the verification mode is randomly configured in the prior art is solved, and the verification mode matched with the scene information can be effectively determined.

The embodiment of the invention provides a chip adjusting and testing device and method, and the device comprises a communication control module which is used for connecting a chip with a PC end operation platform; the PC end operation platform is provided with an automatic test module and is used for calling an automatic use case interface through an interface and editing automatic use case parameters so as to test a chip according to an automatic test case, and the PC end operation platform is also provided with a user-defined use case mode and is used for identifying a control keyword, calling a user-defined use case development sub-interface and developing the chip according to the user-defined use case development sub-interface. A user can edit the user-defined use case to generate a user-defined use case interface, so that the chip is subjected to a user-defined test according to the user-defined use case interface; and the instrument control module is used for calling a corresponding test instrument according to the test instrument type input by the PC end operation platform so as to detect the chip and generate test data. The problem that some temporary or sudden test requirements in the chip test process are difficult to meet is solved, and the effect of conveniently testing the chip according to the requirements of a user is achieved.

The invention relates to the technical field of stroboscopic controllers, and discloses a time-sharing stroboscopic controller control system, which comprises a stroboscopic controller module used for receiving an external trigger signal, generating a multi-time-sequence light source control signal according to the signal, and controlling the lightening time, the extinguishing time, the lightening sequence and the brightness of a light source module; the invention also discloses a control method of the time-sharing stroboscopic controller, which comprises the following steps of: S1, receiving an external trigger signal through the stroboscopic controller module, and starting a light source lightening process; and S2, the stroboscopic controller module generates a lighting time sequence control signal of the light source module according to the external trigger signal. Through a high-precision time synchronization technology, a closed-loop calibration mechanism and a multi-time-sequence multi-channel control design, the problems of inaccurate synchronization of multi-device trigger signals, error accumulation and inflexible cooperative operation of a light source and a camera are solved, and the adaptive capacity and the system reliability in a complex detection scene are remarkably improved.

The invention is suitable for the field of fruit tree picking robots, and particularly relates to an image depth information sensing method for a fruit and vegetable picking robot, and the method comprises the steps: collecting a multi-view image, extracting the color and density of a sampling point based on a multi-layer perceptron, and generating a left view, a middle view, a right view and a disparity map through rendering a three-dimensional scene; performing feature extraction to obtain a multi-scale feature map and a multi-scale context feature map; constructing a multi-view geometric cost body to obtain a correlation volume and a geometric coding volume; performing cost volume operation to obtain a weighted correlation volume; obtaining an initial disparity map by using a softmax function to obtain a final initial disparity map; and obtaining an updated disparity map through an iteration updater. The method not only overcomes the limitation of a binocular camera under the conditions of illumination variation and shielding, but also solves the problem of demand for a large amount of annotation data in a traditional depth estimation method, thereby providing more accurate and robust depth perception capability for the fruit and vegetable picking robot.

The invention discloses a priority-driven hybrid shared parking and charging resource optimization method, and aims to solve the problems of unreasonable resource allocation, unbalanced supply and demand of parking spaces and low utilization rate of charging parking spaces of an existing shared parking lot. The method comprises the following steps: firstly, constructing a priority matching mechanism of multiple types of parking spaces and parking demands, setting priorities according to parking demand types and parking space attributes, and preferentially meeting the matching of mixed demands and charging parking spaces; secondly, parking space and demand data of a parking lot are collected, an optimization model with operation profit maximization as a target is constructed, and target functions comprise profit, cost and penalty cost; the timeliness and rationality of supply and demand matching are ensured by introducing the time window constraint of the parking demand and the shared parking space supply; and establishing a constraint relationship between demand and supply, and optimizing the resource allocation efficiency. The parking and charging resource utilization efficiency can be remarkably improved, the user experience is improved, the parking problem is relieved, and popularization of the shared parking policy is facilitated.

The utility model relates to the technical field of carbonization furnaces, in particular to carbonization furnace flue gas recycling equipment, which comprises crushing and drying equipment, a conveying system, a carbonization furnace, a combustion chamber, a flue gas pipeline and tail gas treatment equipment, a combustion chamber is arranged below the carbonization furnace, the combustion chamber and the crushing and drying equipment are connected with the carbonization furnace through flue gas pipelines, and the crushing and drying equipment is connected with tail gas treatment equipment through a pipeline. According to the equipment, different requirements of different carbonization raw materials on crushing and drying are met, and the conveying system is in transmission connection with a discharging opening of the crushing and drying equipment and a feeding opening of the carbonization furnace, so that dried particle materials can be conveyed to the carbonization furnace in real time; in addition, flue gas generated by the carbonization furnace serves as fuel to be conveyed to the carbonization furnace and the smashing and drying device, energy consumption of the device is reduced, energy is saved, the carbonization furnace can conduct carbonization treatment continuously, and continuous production is achieved.

The invention provides a preparation method of a carbon-supported nano zero-valent iron catalytic material based on multi-metal catalysis, and relates to the technical field of catalytic materials. The preparation method of the carbon-supported nano zero-valent iron catalytic material based on multi-metal catalysis comprises the following steps: step 1, preparing raw materials; step 2, pretreating a carbon carrier; step 3, preparing a multi-metal precursor solution; step 4, carrying out impregnation reaction; a synergistic catalytic system is formed by introducing various metals, so that the catalytic activity of the catalytic material is remarkably improved. Main catalytic metals such as iron, cobalt and nickel interact with auxiliary metals such as molybdenum and tungsten, so that the performance of the material is enhanced. The composite of the carbon nanofibers and the porous graphite is used as the carbon carrier, the advantages of the carbon nanofibers and the porous graphite are combined, a larger specific surface area and a more stable structure are provided for metal loading, and the stability of the catalytic material is improved.

The utility model relates to a flue type gas water heater with ever-burning fire, which comprises a gas water heater main body provided with a water tank, a burner, a water-gas linkage valve, a piezoelectric switch and an ever-burning fire component, the burner comprises an ignition row, and an ever-burning fire gas channel acting on the ignition row of the burner is arranged between the ever-burning fire component and the water-gas linkage valve. A gas main channel entering the burner is arranged between the water-gas linkage valve and the burner, and a liquid inlet channel is arranged between the water-gas linkage valve and the water tank. An ever-burning fire gas channel is opened through a water-gas linkage valve, and an ever-burning fire assembly generates open fire acting on an ignition row through a piezoelectric switch; the water-gas linkage valve comprises a gas valve element acting on the gas main channel, liquid enters the water tank through the liquid inlet channel and pushes the gas valve element to open the gas main channel so that gas can enter the combustor and the gas water heater without being connected with a power source, convenience and rapidness are achieved, and the requirements of remote areas or some specific areas are met.

The invention relates to the technical field of artificial intelligence and game development, in particular to a game role intelligent behavior generation system based on artificial intelligence. A database system; the game scene generation module is used for generating a game scene on a preset game scene template according to the data in the game scene resource library; the role demand generation module is used for generating role demands according to the game scene and the game role where the user is located; the role behavior generation module is used for reading the intelligent behavior data of the corresponding game role from the game role behavior resource library according to role requirements, performing intelligent behavior generation processing on the intelligent behavior data and generating a corresponding intelligent behavior program; the role driving module is used for transmitting the generated intelligent behavior program to the game scene to drive the game role to execute the intelligent behavior; the user feedback acquisition device not only improves the operation efficiency of the system, but also ensures the continuity and rationality of generation behaviors.

The invention discloses a power transmission line lightning classification method, which comprises the following steps: acquiring an original image, and cutting by using a lightning target cutting method to obtain a lightning target image; selecting different background images in the original image, splicing the lightning target image with the different background images, and performing first preprocessing on the spliced image to obtain a background image; modeling the background image by using a Gaussian mixture model to obtain a background model, and calculating the matching degree between each pixel of the background model and each Gaussian model distribution to obtain a foreground; judging the foreground through a threshold cutting method to obtain a lightning region, and performing second preprocessing on the lightning region to obtain a first lightning region; and inputting the first lightning region into a deep learning model for training and classification reasoning to obtain a confidence score, and marking the lightning type and the hazard level according to the confidence score to obtain a lightning classification result, thereby meeting the requirements of power transmission line monitoring safety guarantee.

The utility model discloses a multifunctional restraining glove which comprises a glove body and further comprises an inflatable grip ball assembly detachably installed at the palm position of the inner side of the glove body. The first assembly is detachably installed on the wrist portion of the outer side of the glove body and provided with a detection module used for detecting physiological parameters of a patient and a display screen used for displaying the physiological parameters of the patient; the second component is detachably mounted on the outer side of the glove body close to the root of an index finger and is provided with a button type beeper. The multifunctional restraining glove can effectively restrain the hand of a patient, can conduct hand grip rehabilitation training on the patient, can monitor physiological parameters of the patient, can meet the requirements of the patient in time, guarantees medical safety and quality, and promotes rehabilitation of the patient.

The present invention discloses a hip joint exoskeleton structure that can assist in carrying and walking at the same time, including a back fixing part, a waist fixing part and a thigh fixing part; a joint drive module is arranged on each side of the waist fixing part, and the joint drive module is connected to the corresponding thigh fixing part through a flexion and extension leg rod; an auxiliary bar block is arranged on the back fixing part, and the joint drive module is connected to the auxiliary bar block through a traction cable; a control and clutch module for adjusting the force of the traction cable is arranged on the waist fixing part; the present invention discloses a hip joint exoskeleton control method that can assist in carrying and walking at the same time. The structure of the present invention integrates carrying and walking assistance functions, which can simultaneously solve the needs of walking assistance and carrying bending assistance. In addition, the method of the present invention can continuously and accurately identify the carrying action and walking action and their subdivided motion states, and provide decision-making for power assistance under various complex working conditions.

The invention provides a low-temperature liquid energy storage and air separation coupling system and method utilizing LNG cold energy, and relates to the technical field of electric energy storage systems. The low-temperature liquid energy storage and air separation coupling system utilizing the LNG cold energy comprises an air compression purification and pressurization unit, an air liquefaction and air separation cold box, a liquid air storage and pressurization unit, an air expansion power generation unit and an LNG cold box. The low-temperature liquid energy storage and air separation coupling method utilizing the LNG cold energy comprises the following steps that during energy storage, raw material air is cooled and purified, then the LNG cold energy is absorbed for air separation rectification and liquid air storage, and the liquid air part is conveyed to air separation rectification to ensure that the product yield is stable; and during energy release, the stored liquid air is conveyed to the expansion generator set for expansion power generation. The problem that LNG cold energy supply and air separation requirements are not synchronous is solved, efficient and stable operation of a cold energy air separation device is guaranteed, the LNG cold energy utilization rate is increased, and the energy conversion efficiency of an LAES system is improved.

The embodiment of the invention provides an exception handling method, an exception handling model training method, electronic equipment, a computer storage medium and a program product, and the exception handling method comprises the steps: receiving exception event description information; acquiring event data and an exception handling strategy matched with the exception event description information; generating prompt information based on the abnormal event description information, the event data and the exception handling strategy; the prompt information is sent to the abnormal event description information, generative processing is conducted on the prompt information through a generative domain model, so that processing suggestions for the abnormal event indicated by the abnormal event description information are obtained, and the generative domain model is a model obtained through training based on a generative basic model. According to the embodiment of the invention, the generative domain model can generate the processing suggestions which fully meet the actual requirements in the corresponding fields and service scenes and solve the actual problems, and the user experience is improved.

The utility model discloses a rubber vibration isolator with an electrorheological damping structure, which comprises a cylinder body and a rubber vibration isolator, the cylinder body is provided with a rubber disc, an insulating bush and a connecting disc, the insulating bush is internally provided with a negative plate, the connecting disc is internally provided with a piston in a sliding manner, and the piston is connected with a positive plate. A screw, a ball support and an extension spring are arranged between the rubber vibration isolator and the piston, a plurality of balls are arranged on the ball support and can freely rotate on the ball support, one end of the screw is connected with the rubber vibration isolator, the other end of the screw is connected with the ball support, and the balls make contact with the piston. One end of the extension spring is connected with the ball support, and the other end is connected with the piston. According to the vibration isolator, by means of the balls, vertical loads are reliably transmitted, the vertical rigidity and damping of the vibration isolator are changed through the magneto-rheological effect, and meanwhile the rubber rigidity and damping characteristics in the transverse direction are kept. Vibration of equipment can be effectively reduced, and the safe use requirement for vibration of the equipment is met.

The utility model relates to the technical field of dry fog dust suppression, in particular to a dry fog dust suppression device which comprises a base and a push type movable fog making assembly, the push type movable fog making assembly comprises a side plate, a connecting plate, a control button, a push handle and moving wheels, the side plate is detachably connected with the base and located on one side of the upper portion of the base, the connecting plate is detachably connected with the side plate, and the control button is located on the side plate. The control button is detachably connected with the connecting plate and located on the side, away from the base, of the side plate, the push handle is detachably connected with the connecting plate and located on the side, away from the side plate, of the connecting plate, the push handle is arranged below the control button, and the moving wheels are detachably connected with the base and located below the base. By replacing an original fog making structure with the push type movable fog making assembly, the problem that a traditional dry fog dust suppression device can only move left and right in a small range when facing a large factory or a mine field, and the overall requirements of the factory or the mine field cannot be effectively met is effectively solved.

The application relates to the technical field of cow tendon line, in particular to a connecting rod type punching and conveying mechanism. The connecting rod type punching and conveying mechanism comprises a base, a punching assembly and a conveying assembly are arranged on the base, the punching assembly comprises a driving motor, a connecting rod and a sliding block, the driving motor is installed on the base, one end of the connecting rod is rotationally borne at the end of an output shaft of the driving motor, the other end of the connecting rod is hingedly matched with the sliding block, a bearing frame is fixed on the upper surface of the base, the sliding block is vertically slidably arranged on the bearing frame, a punching knife is fixed on the lower surface of the sliding block, the conveying assembly is arranged on the upper surface of the base, the conveying assembly is used for conveying the cow tendon line, and the driving assembly drives the conveying assembly to move; the application can correspondingly reduce the production cost of the cow tendon line.

The invention discloses a cooperative control strategy for ice slurry energy storage to assist peak regulation and frequency modulation of a power grid, and belongs to the field of power system regulation and control, energy storage technology and intelligent power grids. The method comprises the following steps: setting corresponding agents for the ice slurry energy storage system and the power grid regulation and control module; initial parameters are set, and the power grid load and the user cold demand are predicted; taking three conditions of minimizing the total energy consumption of the system, minimizing the peak deviation and meeting the cold demand of a user as optimization objectives, and combining energy conservation, cold storage constraint and cold demand constraint to construct an optimization model; asynchronous iteration is adopted to realize cooperative control of parameter optimization, peak regulation, peak deviation suppression and cold storage state self-recovery of the intelligent agent; and through convergence judgment and real-time iteration, continuous peak regulation of the power grid, peak load optimization and user cold demand guarantee are realized. The method provided by the invention can solve the problems that the peak-valley load difference of the power grid is enlarged, the peak load pressure is prominent, and the ice slurry energy storage, power grid regulation and control and user cold demand collaboration is insufficient under the high permeability of new energy.

The invention discloses a heat storage device, and relates to the technical field of energy utilization, the heat storage device comprises a heat source collection assembly, and the heat source collection assembly comprises a solar energy collection unit, an industrial waste heat collection unit, a geothermal energy collection unit and a wind energy collection unit; the heat storage part is used for storing heat collected by the heat source collecting assembly; the heat source management part communicates with the heat source collection assembly and the heat storage part and is used for transferring heat collected by the heat source collection assembly into the heat storage part. The load end is communicated with the heat storage part; when the load end needs to use heat, the heat storage part supplies heat to the load end, so that redundant heat in the heat energy enrichment area and the heat energy surplus period can be effectively utilized, and the problem that heat supply output is not matched with heat requirements is solved to a certain extent; different types of heat collected by the heat source collection assembly are integrated and buffered through the heat source management part, heat loss caused by local overheating or supercooling of the heat storage part is avoided, and effective utilization of the heat is further achieved.

The invention relates to the technical field of image processing, and discloses a railway container corner fitting abnormal state detection method and related equipment. The method comprises the steps of obtaining a railway freight no-load vehicle passing image set, and extracting an F-TR lock image in each no-load vehicle passing image based on an image segmentation algorithm; obtaining a railway freight loading box vehicle passing image set, and superposing each F-TR lock image to a preset corner fitting position of each loading box vehicle passing image in the loading box vehicle passing image set to obtain a training data set; performing model training based on the training data set to obtain a target detection model taking an F-TR lock as a detection target; and performing F-TR lock detection on the to-be-identified loading box vehicle passing image based on the target detection model, and determining an abnormal state of the boxing corner fitting according to a detection result. According to the method, the data set can be constructed under the condition of sparse samples, and the prediction quality of a machine learning model is improved, so that the abnormal state of the container corner fitting is effectively identified and alarmed.

This utility model discloses a miniature ball bearing for a cooling fan, comprising an outer ring, an inner ring, a cage, a dust cover, and rolling elements movably disposed between the outer and inner rings. Both the inner and outer peripheral walls of the outer ring and the inner ring have circumferentially formed grooves for the rolling elements to move. Both ends of the inner peripheral wall of the outer ring have circumferentially formed stepped grooves for installing the dust cover. The connections between the grooves of the inner ring and the outer peripheral wall of the inner ring, and between the grooves of the outer ring and the inner peripheral wall of the outer ring, have chamfered edges. A retaining spring is provided in the stepped groove for an interference fit with the stepped groove. The inner wall of the retaining spring abuts against the outer wall of the dust cover, while the outer peripheral wall of the dust cover has a clearance fit with the inner peripheral wall of the stepped groove. The curvature coefficient of the grooves of the outer ring is greater than that of the grooves of the inner ring. This utility model solves the problems of traditional miniature ball bearings, such as increased bearing ellipticity due to dust cover installation leading to out-of-tolerance bearing ellipticity, and assembly damage during rolling element installation leading to unqualified rolling element vibration during bearing operation.

A food product is provided. The food product may include a sugar blend; the composition has a fat content of less than 2% by weight of the solids in the food product; the composition has a protein content of less than 8% by weight of solids in the food product. The sugar blend may comprise at least 50% by weight of solids in the food product. The sugar blends may include galactose, glucose, and fructose in the form of each monosaccharide or contained within a disaccharide. The glucose, galactose, and fructose may each make up at least 1% by weight of the sugar blend. The food product may be formed as, for example, a jelly / chew, a sports gel, a beverage mixture, or a hydrated beverage. Methods of manufacture are also provided.

The utility model provides sound equipment with folding and rotating functions. The sound equipment comprises a sound equipment main body, a rotating assembly, a folding assembly and a display screen, a groove is formed in the top of the sound equipment main body; one side of the rotating assembly is fixedly connected to the groove; one end of the folding assembly is fixedly connected with the other side of the rotating assembly, and the folding assembly comprises a first connecting piece, a second connecting piece, a push rod assembly and a first supporting piece; the first connecting piece is bent to form a first side plate and a second side plate; the second connecting piece is bent to form a third side plate and a fourth side plate which are perpendicular to each other; the top end of the push rod assembly is rotationally connected with the third side plate; the bottom end of the first supporting piece is connected to the second side plate, and the top end is connected to the fourth side plate; the display screen is fixedly connected with the third side plate. The angle of the display screen is adjusted through the rotating assembly, and the display screen is folded through the folding assembly. The problems that a display screen on the sound box is fixedly arranged, cannot be adjusted, occupies a large space and is not convenient to transport and store are solved.

The application discloses a data processing device for LDPC code layered decoding, which comprises a configurable computing unit capable of switching between row update mode and column update mode, a storage system physically divided into multiple independent storage banks, an address generation unit and a control unit. The address generation unit is configured to map access addresses of parallel data requests to different independent storage banks, and the control unit is configured to schedule column update tasks to be performed first and then closely related row update tasks in a decoding layer, wherein the row update tasks directly read the latest variable node messages generated by the column update tasks. The application guarantees the immediate reuse requirement of the layered decoding algorithm for the latest messages by constructing a high-bandwidth parallel data access path, eliminates the memory access bottleneck, and thus can fully exert the performance advantage of the layered decoding algorithm to realize high-throughput decoding processing.

The present invention relates to a subject screening system suitable for multi-center research, including a regional scientific research management platform, a plurality of hospital subject screening management systems interacting with the regional scientific research management platform, and a universal health information platform; after adopting the above system and steps, the present invention has the following advantages: the system makes good use of regional platform data to assist clinical research, and the introduction of regional data significantly expands the screening coverage and number of potential subjects found, shortening the research enrollment cycle. It provides support for regional multi-center research, improves research efficiency and level, and solves the conflict between patient privacy protection and clinical research needs, pays more attention to patient privacy protection, and focuses on solving the problem of patient privacy protection in the application of regional health data in clinical research through reasonable technical solutions and business process design, providing a new idea and method for the shared application of regional data in clinical research.

The invention belongs to the technical field of advertisement pushing, and particularly relates to an advertisement pushing method based on e-commerce big data feedback, which can extract a user intention snapshot in real time by constructing a multi-dimensional spatiotemporal behavior matrix and combining a sliding time window dynamic slicing technology. And intention transition events such as interest point transfer and decision intensity change are accurately identified by virtue of the trained intention transition detection model, so that user demand fluctuation can be followed up in real time, advertisement pushing is highly matched with the real-time intention of the user, the problem that pushing is disjointed with the real-time demand is effectively solved, and the accuracy of advertisement pushing is remarkably improved.