66results about How to "Realize fine control" patented technology

The invention relates to the technical field of radio frequency communication control, and discloses a beam forming accurate control method, which comprises the following steps of: acquiring a business service quality parameter and frequency domain channel information of a user; generating a user priority sequence; constructing a three-dimensional resource scheduling matrix; outputting a beam forming coefficient matrix and a power distribution result; and performing beam precise closed-loop regulation and control of the radio frequency array. The technical problems in the prior art that real-time resource scheduling and fine beam regulation and control are difficult to carry out in combination with user QoS dynamic changes, and stable beam forming control is difficult to realize especially in a scene that a chip supporting large-scale user concurrency needs to dynamically adjust beams according to QoS requirements are solved. According to the invention, the dynamic resource scheduling matrix fused with power perception is constructed, and a multi-dimensional feedback calibration mechanism based on amplitude-phase perturbation is combined, so that high-precision beam control is realized, and the communication stability and the regulation and control flexibility are improved.

The utility model provides a kind of concrete slab joint sweeper, including support, joint sweeping mechanism and walking wheel, support includes frame body and handrail, joint sweeping mechanism includes driving device and joint sweeping brush, joint sweeping brush is arranged in the center of frame body front end bottom, driving device is arranged on the upper portion of frame body, walking wheel is arranged in the center of frame body rear end bottom, the utility model guarantees the accuracy of joint sweeper, construction quality is better, efficiency is higher, economy is more optimal, convenient time-saving.

This invention provides an automated assembly and tightening device for shaft-end nuts that is easy to verify, belonging to the field of industrial manufacturing technology. This invention achieves full automation of the nut assembly process by integrating components such as a base, conveying mechanism, nut supply device, assembly robotic arm, tightening mechanism, and verification system. Its core lies in employing a two-stage tightening control strategy, dividing the tightening process into preliminary tightening and reinforcement tightening stages. In the preliminary tightening stage, a low-speed, high-precision mode and dynamic damping control ensure correct thread engagement. The intermediate verification stage measures axial displacement values ​​to promptly detect anomalies. In the reinforcement tightening stage, a stepped torque-increasing algorithm ensures uniform stress distribution. Finally, multi-parameter comprehensive verification evaluates the tightening quality and generates a traceability code, effectively solving the quality instability problem caused by a single-stage tightening method for shaft-end nuts.

This invention relates to an index construction method, device, program product, and storage medium, and pertains to the technical field of vector databases. The method includes: acquiring query vectors; calculating the coordinate region identifiers of each query vector in the vector space; statistically analyzing the query frequency of each coordinate region identifier within a preset time window to obtain regional query frequency distribution data; calculating the frequency growth rate of the regional query frequency distribution data of each coordinate region identifier at the current moment compared to the regional query frequency distribution data at the previous moment; calculating a query popularity fluctuation coefficient based on each frequency growth rate; monitoring the load parameters of the vector database system in real time and calculating a comprehensive system load index based on the load parameters; and constructing an index for each query vector based on the query popularity fluctuation coefficient and the comprehensive system load index. Implementing the technical solution provided in this application can achieve a balance between indexing effectiveness and system stability.

This invention relates to the field of equipment training technology, and discloses an electro-dynamic feedback device and design method for virtual training, including the following steps: Designing an arm-worn force feedback device based on a DC servo motor; establishing a mapping relationship between virtual environment interaction information and physical feedback force by deriving a mathematical model of feedback force and servo motor rotation angle; designing a phase displacement-torque dual closed-loop control system, controlling the servo motor rotation angle through a phase displacement closed loop and controlling the servo motor output torque through a torque closed loop to achieve precise control of the feedback force amplitude; using the mathematical model and the dual closed-loop control system, driving the arm-worn force feedback device to generate feedback force matching the virtual training scene, achieving rapid response to virtual collisions, and keeping the feedback force and rotation angle error within a preset threshold to enhance the realism and immersion of virtual training. Establishing a mapping relationship between virtual interaction and physical feedback enables precise control of the servo motor rotation angle and output torque.

The invention discloses a comprehensive maintenance method and system for construction of a composite wall of a comprehensive hub station through a cover-excavation top-down method, and relates to the technical field of rail traffic engineering construction. The technical problems of low maintenance efficiency, unbalanced temperature and humidity control, easiness in cracking and leakage and the like of the laminated wall under the working condition of top-down excavation are solved; the comprehensive system comprises mold curing, intelligent temperature and humidity control, cooling temperature control, heat preservation and moisture preservation and monitoring early warning, automation, refinement and traceability of the curing process are achieved, the moisture preservation and heat preservation period of the laminated wall is prolonged, the internal and external temperature difference is strictly controlled to be smaller than or equal to 25 DEG C, the concrete surface moisture content is controlled to be larger than or equal to 80%, and the impervious concrete curing period is controlled to be larger than or equal to 14 d. According to the construction method, the integrity and the anti-cracking and anti-seepage performance of the wall body are remarkably improved, the construction requirements of the large cover-excavation top-down composite wall are met, the construction convenience and the maintenance quality reliability can be effectively improved, and remarkable economic and social benefits are achieved.

The invention discloses a multi-dialect large model adaptation method and system oriented to a Gluggin language, and the method comprises the steps: obtaining corpus data and model constraint information of each Gluggin dialect region, building a dialect mapping matrix, and positioning key semantic difference points; characterization offset features are extracted, contrast training sample pairs are constructed, and vector space analysis is implemented to determine a priority adjustment layer; identifying dialect difference features in the model constraint information to generate layered coding parameters, generating a layered representation structure through collaborative matching of a priority adjustment layer and the layered coding parameters, and determining a weight adjustment boundary; determining a parameter distribution density by combining a weight adjustment boundary and a priority coefficient, generating an optimal migration weight, extracting a negative migration node, converting the negative migration node into a dialect boundary mark, and constructing a gradient propagation path; and detecting the confusion expression set, generating representation decoupling configuration, executing progressive collaborative optimization based on the representation decoupling configuration and the gradient propagation path to output a multi-dialect adaptation scheme, and realizing accurate adaptation and collaborative optimization of the multi-dialect of the Gu-language family.

This invention relates to the technical field of meibomian gland massage, and in particular to an intelligent control method and system for a meibomian gland massager based on AI recognition. The method includes the following steps: acquiring three-dimensional point cloud data of the patient's meibomian gland surface; extracting feature points and constructing their three-dimensional coordinates based on the three-dimensional point cloud data; generating the massage motion trajectory of the massager using an adaptive path planning algorithm based on the three-dimensional coordinates; acquiring image data of the patient's meibomian gland; retrieving massager parameter data from a preset feature database based on the image data; inputting the massager parameter data into a preset control model; outputting the massage time and massage light intensity; and controlling the massager to massage the patient's meibomian glands based on the massage time and massage light intensity. This application has the effect of improving the massage effect on the patient's meibomian glands.

The application discloses a temperature control method, device and medium of a laser, relates to the technical field of temperature control, and comprises the following steps: acquiring operation parameters of a pump source assembly in a laser system, and generating a thermal load prediction value by querying and interpolating calculation through a predefined current-heat mapping table based on a pump source current in the operation parameters; generating a refrigeration control signal based on the thermal load prediction value and according to a working mode of the laser, and sending the refrigeration control signal to an execution component of a refrigeration system to control at least one of a compressor rotating speed, an expansion valve opening degree and a fan rotating speed; calculating a current fine tuning coefficient according to a difference between a target temperature value and an actual temperature value in the thermal load prediction value, and performing overall current compensation according to a difference between a power setting value and an actual power value in the thermal load prediction value, and outputting an independent current adjustment value and a total current adjustment value of each pump source assembly.

This invention relates to an aluminum alloy material with heterogeneous inner and outer layers and its preparation method. The designed aluminum alloy exhibits a wide-ranging grain size distribution, with submicron equiaxed crystals on the surface and micron-sized deformed internal structures. The preparation method is as follows: First, the workpiece undergoes high-frequency pulsed nanosecond laser remelting. Utilizing the extremely short duration and high instantaneous energy of the high-frequency pulsed nanosecond laser, submicron equiaxed crystals with a size of 350–550 nm are formed on the material surface. Then, the laser-melted workpiece undergoes heat treatment to reduce residual internal stress caused by recrystallization. Finally, the heat-treated workpiece undergoes low-temperature rolling deformation treatment, resulting in a banded structure within the material, constructing an aluminum alloy material with a surface of 350–550 nm submicron equiaxed crystals encapsulating an internal banded structure. While ensuring good plasticity, this invention significantly improves the yield strength of the material, solving the technical problem of balancing yield strength and plasticity in aluminum alloy materials.

This invention relates to the field of photovoltaic cable manufacturing technology, and more particularly to a solar photovoltaic cable and its manufacturing process. The process includes: processing a tin-plated cable core according to a pre-process; extruding the tin-plated cable core through an extruder with preset extrusion parameters to perform a first functional layer extrusion; pre-cooling the extruded cable; determining a second preset pulling speed for the second functional layer extrusion process based on a first excess value when the functionality is deemed unqualified, and further determining a second preset pulling speed based on a first excess value when the functionality is deemed unqualified after the pre-cooling stage; and adjusting the cooling temperature based on a second excess value when the cooling is deemed unqualified, and based on a second excess value when the cooling is deemed unqualified, after the cooling is deemed unqualified. This invention can comprehensively assess the manufacturing quality of photovoltaic cables from multiple dimensions and deeply refine it from a single dimension, and automatically feed back and adjust the parameters for manufacturing photovoltaic cables to improve the stability of the performance and the stability of the manufacturing process of photovoltaic cables.

This invention discloses a laser welding repair method for 1.2738 steel plastic molds and its post-weld heat treatment, belonging to the field of plastic mold repair. The invention first uses welding wire of the same composition as the 1.2738 steel plastic mold to perform laser welding repair on the plastic mold at room temperature, and then performs post-weld heat treatment on the repaired area. During heat treatment, the repaired area and a 10 cm outer edge of the plastic mold are heated by quartz sand for heat transfer and insulation, and a flexible heating blanket is used for post-weld heat treatment. The laser welding repair method for 1.2738 steel plastic molds and its post-weld heat treatment described in this invention not only effectively avoids mold oxidation, significantly saves energy, and improves the uniformity and control accuracy of heat treatment temperature, but also ensures that the maximum difference between the Vickers hardness of the repaired area and the Vickers hardness of the mold body is less than 30 HV.

The application provides a high-temperature acidolysis device and method for uranium-containing polymetallic silicate ore, and relates to the technical field of hydrometallurgy. The device is used for high-temperature acidolysis of uranium-containing polymetallic silicate ore, the function structure of a slurry preparation tank is designed, and material is added in batches in sections, so that the risk of slurry tank overflow is reduced, and the time for slurry preparation is shortened; the reaction heat and dilution heat are used to make the material mature in the stirring tank, so that the energy consumption is reduced, and the reaction time in the subsequent high-temperature acidolysis process is shortened. The solidification of the slurry and the high-temperature acidolysis equipment are modularized and connected in series, and are carried out in the paddle stirring equipment, so that the rapid solidification of the slurry and the fine control of the high-temperature acidolysis process are realized, the technical problems of material caking and scarring in the high-temperature acidolysis are effectively solved, the energy consumption is reduced, the amount of waste gas generated in the acidolysis process is reduced, and the equipment floor area is saved.

The invention discloses a probiotic yoghurt constant temperature fermentation control device, and relates to the technical field of fermentation, the top surface of a gas pipe is provided with a gas conveying groove for conveying gas into the fermentation control device, a gas guide pipe is inserted into the gas pipe, and the gas pipe and the gas guide pipe are in rotary sleeving connection; the fermentation control device has the advantages that whether gas is introduced or not is flexibly controlled according to the requirements for gas in different stages of fermentation, the gas conveying bin can provide buffering and storage space for auxiliary fermentation gas, the gas conveying bin can provide buffering and storage space for the auxiliary fermentation gas, and the fermentation control device is simple in structure, convenient to use and high in practicability. The gas conveying pressure can be balanced, the phenomenon that the fermentation process is influenced by gas pressure fluctuation is avoided, the gas conveying and control functions are achieved, meanwhile, the overall structure is simplified, a proper gas environment can be provided for the fermentation process, and the smooth proceeding of the fermentation reaction is facilitated.

The application provides an air conditioner control method and device, electronic equipment and storage medium, wherein the method comprises: in response to a heating operation instruction of an air conditioner, adjusting the inner fan rotating speed of the air conditioner according to a target cold wind prevention state interval of the inner pipe temperature of the air conditioner; wherein the target cold wind prevention state interval is used to determine the corresponding inner fan control strategy. Through the collection of the inner pipe temperature and the exhaust temperature, and according to the interval of the inner pipe temperature to determine the target cold wind prevention state interval, and then control the operation of the inner fan according to different parameters, the fine control of the air conditioner operation is realized, the cold wind is avoided to be sent out, the heating effect is ensured, and the comfort of the air conditioner air outlet is improved.

The embodiment of the invention provides a vehicle control method and system, a vehicle and a computer readable storage medium, and relates to the technical field of vehicle steering control. The method comprises the following steps: acquiring a vehicle state data set of a target vehicle; based on a first sub-data set in the vehicle state data set, determining a road adhesion coefficient of the target vehicle, the road adhesion coefficient being used for representing friction coefficients between a plurality of wheels of the target vehicle and the road; according to the road adhesion coefficient, a target rear wheel steering mode of the target vehicle is determined, and the target rear wheel steering mode is used for representing a vehicle driving mode matched with the road adhesion coefficient; determining a target rear wheel steering angle corresponding to the target rear wheel steering mode based on a second sub-data set in the vehicle state data set; and controlling the target vehicle to steer according to the target rear wheel steering angle. The technical problem of how to adaptively adjust the steering angle of the rear wheel of the vehicle so as to ensure the control stability and the driving safety of the vehicle is solved.

The present application provides a kind of sedimentation tank sludge quantity prediction system and method, it is related to sedimentation tank sludge control technical field, comprising: for each sedimentation period of sedimentation tank, at least one group of historical water inlet parameters and corresponding historical sludge-water interface height in non-sludge discharge period are obtained respectively, and total actual sludge production after sludge discharge period ends and corresponding total sludge-water interface height;According to each historical sludge-water interface height, total actual sludge production and total sludge-water interface height, the real-time actual sludge production corresponding to historical water inlet parameters is obtained by processing;Real-time water inlet parameters are obtained as input, and the sludge quantity prediction model corresponding to the real-time actual sludge production as output is trained;A group of real-time water inlet parameters of sedimentation tank in non-sludge discharge period is obtained, and real-time water inlet parameters are input into sludge quantity prediction model, to obtain the sludge quantity prediction result of sedimentation tank.The beneficial effect is that the real-time sludge production of sedimentation tank can be effectively predicted;Self-adaptive training and correction of sludge quantity prediction model can be realized.

This utility model belongs to the technical field of agricultural seedling cultivation facilities, specifically relating to a multi-layer double-root-cutting watermelon grafted seedling healing device. It includes a healing chamber, inside which is installed a vertical circulating seedling cultivation device. Several grafted seedling trays are transported on the vertical circulating seedling cultivation device. Temperature and humidity control modules for adjusting the temperature and humidity inside the healing chamber are arranged around the vertical circulating seedling cultivation device. A light environment control module for adjusting the light environment inside the healing chamber is located at the top of the vertical circulating seedling cultivation device. The vertical circulating seedling cultivation device has a conveying motion control module for adjusting its operating speed. It also includes a central control system, which is electrically connected to the temperature and humidity control module, the light environment control module, and the conveying motion control module to achieve spectral environment regulation, control the operating speed of the vertical circulating seedling cultivation device to optimize light exposure, and couple the regulation of temperature and humidity to provide a stable healing microenvironment.

A kind of rolling reaction force control method with adaptive function, including the following steps: starting equipment, set parameters in control box;Production mode setting;Electric push rod is started to drive rotary lever rotation, realize discharge port closure;Electric push rod is started to drive seat plate and each component on it rise to the highest position, cantilever makes suspension cover turn to vertical, manually or by conveyor to rolling barrel feeding;After feeding is completed, electric push rod is started to drive seat plate and each component on it drop to preset position, cantilever makes suspension cover turn to horizontal;Motor is started to run according to the set parameters, drive arm movement to drive barrel frame eccentric rotation relative to rolling disc center, tea base gradually forms strip in the space composed of rolling disc, suspension cover and rolling barrel and interacts with rib;Rolling disc discharge port opens, tea base is transported out of rolling barrel, realizes discharge through the discharge port of rolling disc, and rolling process is completed.Rolling force process is matched with rolling barrel speed, realizes fine control of rolling process, and improves tea quality.

The invention discloses a preparation method and application of a partial hydroxylation modified high-load manganese dioxide electrode, and relates to the technical field of supercapacitors. The method comprises the following steps: mixing Mn3O4 precursor dispersion liquid and exfoliated graphene (EG) dispersion liquid, performing suction filtration, and performing high-temperature annealing to obtain a Mn3O4 / EG composite electrode; the Mn3O4 / EG composite electrode is placed in a sodium salt solution for electrochemical activation, and an active MnO2 substrate is obtained; the active MnO2 substrate is placed in a manganese salt solution for electrochemical treatment, and the high-quality loaded manganese dioxide electrode partially modified by hydroxylation is obtained. The preparation of the high-load and high-activity electrode material can be easily realized by virtue of cation environment optimization regulation and control. Compared with an electrode which is not regulated and controlled by positive ions, the high-load electrode can achieve the high area specific capacity of 13838 mF cm <-2 > and the long cycle life of 6000 circles.

This application relates to the field of welding technology, and in particular to a temperature control method and related equipment for a laser solder wire welding machine. The method includes: acquiring the real-time temperature and suitable temperature of the solder joint based on current operating information; acquiring a first temperature difference based on the real-time temperature and the suitable temperature; if the first temperature difference exceeds a first temperature threshold, acquiring the current laser power; acquiring a power-temperature conversion relationship; if the current laser power is greater than the rated minimum power but less than the rated maximum power, acquiring a first power difference based on the current laser power and the rated minimum power, and acquiring a second power difference based on the current laser power and the rated maximum power; acquiring a corresponding adjustable temperature range based on the power-temperature conversion relationship, the first power difference, and the second power difference; and adjusting the current laser power based on the adjustable temperature range and the suitable temperature of the solder joint. This application helps improve the temperature control capability of the laser solder wire welding machine, thereby improving welding quality.

The application relates to the field of two-dimensional material optoelectronics and communication, in particular to an electrically controlled signal source of a D-shaped multimode optical fiber. The application integrates a graphene gate regulating structure on a D-shaped multimode optical fiber microcavity, adjusts the pump frequency and pump power of an externally connected narrow-linewidth laser, simultaneously, adjusts the Fermi level of the top graphene film by applying an external voltage, changes the refractive index of the D-shaped multimode optical fiber microcavity, and then finely adjusts the frequency of the overall device output microwave signal, so that the microwave signal output and accurate regulation of about 11 GHz are realized. Compared with other microwave signal sources based on optical technology, the application has the advantages of small device volume, high integration degree, adoption of an all-fiber structure, convenient access to an optical fiber information transmission network, and effective overcoming of the defects of high phase noise, complex structure, narrow tuning range and the like.

This utility model provides a novel integrated multi-contact structure, relating to the field of molding machine technology. It includes an integrated unit, individual hydraulic cylinders, an oil circuit unit, and an on / off control unit. Several individual hydraulic cylinders are connected to the integrated unit, and the oil circuit unit is located inside the integrated unit. An on / off control unit is installed on the connection path between each individual hydraulic cylinder and the oil circuit unit. All individual hydraulic cylinders can be integrated into the integrated unit, and by setting the oil circuit unit inside the integrated unit, the complex oil pipe structure can be eliminated, resulting in a more aesthetically pleasing design. Furthermore, by installing an on / off control unit on the connection path between each individual hydraulic cylinder and the oil circuit unit, the on / off control unit can independently control its corresponding individual hydraulic cylinder without affecting the overall oil circuit of the oil circuit unit. This allows for precise control of the individual hydraulic cylinders, enabling precise selection and use according to actual needs during operation, thus improving work efficiency.

The invention relates to the technical field of automobile paint conveying, in particular to an automobile paint conveying pressure regulation and control method and system based on flow self-adaption. According to the method, flow data under all conveying actions are monitored in real time, pressure analysis is conducted in combination with historical flow, and abnormal pressure actions are recognized; meanwhile, a mass offset vector is constructed based on the spraying film thickness uniformity and the paint adhesive force, and quantitative judgment of the spraying quality is achieved; performing supervised machine learning by using historical flow data, a quality offset vector and a conveying working parameter set, and establishing a regulation and control optimization model; starting operation according to a preset parameter set, and if quality abnormity or abnormal pressure action occurs, dynamically adjusting parameters based on the model; otherwise, maintaining the current parameters to run continuously. According to the method, cooperative self-adaptive regulation and control of the flow and the pressure are achieved, the spraying quality stability is improved, energy consumption and the defect rate are reduced, and intelligentization of the coating process is promoted.

The application discloses a kind of based on the high-efficiency operation method and system of sewage plant water inlet characteristics, solve the problem that sewage plant operation uses static single processing scheme, cannot adapt to different water inlet characteristics, including steps: setting water inlet classification standard, establish the parameter control database of sewage plant operation;Collect sewage plant water inlet data, according to water inlet data carries out water inlet characteristic analysis, and according to water inlet characteristic carries out classification;According to the type of water inlet characteristic at current time, from parameter control database corresponding sewage plant operation strategy is retrieved, water inlet characteristic is matched with sewage plant operation process parameter, then according to effluent target, the process parameter is fine-tuned;The effluent quality of sewage plant is predicted, according to the feedback regulation of predicted result to sewage plant operation process parameter.It realizes that sewage plant high-efficiency operation is strong in adaptability, energy-efficient, improves the operation efficiency of sewage plant and the treatment effect to sewage, reduces energy consumption and operating cost.

The embodiment of the invention provides a vehicle door unlocking method and device, equipment and a storage medium. The method comprises the following steps: acquiring accident signal data of a vehicle; wherein the accident signal data comprises signal data in a target signal domain; determining an accident scene triggered by the vehicle according to the target signal domain; according to an accident triggering requirement in the triggered accident scene and the triggered accident scene, performing accident triggering detection on the accident signal data to obtain an accident detection result; wherein the accident detection result comprises accident grade information; and according to the accident grade information and the triggered accident scene, a matched vehicle door unlocking mode is determined, and according to the matched vehicle door unlocking mode, a vehicle door of the vehicle is controlled to be unlocked. According to the method, the reliability, the accuracy and the refinement degree of the vehicle door unlocking method can be improved.

The invention discloses a coal mine production business optimization method based on an industrial knowledge graph, and relates to the field of coal mine production, and the method comprises the steps: constructing a coal mine production knowledge graph according to historical ledger data; extracting prior constraints, and performing causal structure learning to obtain a coal mine production causal diagram; constructing a variable influence structure equation set according to the causal diagram; carrying out anti-fact simulation, calculating key indexes under different intervention behaviors, and taking the intervention behaviors meeting key index thresholds as feasible scheme domains; and performing multi-target optimization on the feasible scheme domain to obtain an optimization scheme set, and writing the scheme conforming to the comprehensive benefit score threshold value as a configuration scheme back to the knowledge graph. The influence of different intervention measures on safety, yield and cost can be evaluated, so that managers can solve the core contradiction between safety and benefit in coal mine production, the optimal solution of production efficiency and cost control is found on the premise that safety is guaranteed, and fine control over coal mine production business risks is facilitated.

This invention discloses an automated penetration testing method, apparatus, device, and storage medium, belonging to the field of penetration testing technology. The invention obtains initial information about a real network environment; inputs this initial information into a preset automated penetration testing agent to obtain target attack actions; loads the target attack actions into the target network environment and receives feedback information from the target network environment; and performs automated penetration testing based on the feedback information. This solution for automated penetration testing does not excessively rely on human resources, enabling automated execution and fine-grained control of the entire sequential penetration testing process, improving the accuracy and adaptability of the test, and thus more effectively identifying potential security vulnerabilities and threats.

The application provides a method and system for customizing deployment of a simulated SDN switch network, comprising: step 1, creating a virtual node for each network node; step 2, configuring the connection of virtual network cards between the virtual nodes on a virtualization platform; step 3, placing a switch system program in a shared directory of a physical host, using remote control to traverse each virtual node, and commanding the virtual node to copy the switch system program from the shared directory to the system directory of the virtual node; step 4, using remote control to traverse each virtual node, and commanding the virtual node to execute the system program immediately or after a delay; and step 5, adding each virtual network card in the virtual node to the port of a virtual SDN switch, and completing the construction of the virtualized SDN network. The application sets a delay waiting mechanism for the switch system program, and realizes fine control over the start time of each virtualized SDN switch.

The invention discloses an authority fine control system and method applied to nuclear power production management in a group factory and group heap scene, and the system comprises an authority model construction module which is used for constructing a three-level authority model based on an organization, a post role and a data field; the authorization execution module supports two modes of manual authorization and automatic authorization, the manual authorization is based on an approval process which is manually applied and is driven by a workflow, and the automatic authorization is based on a preset strategy and responds to organization or personnel change; the permission auditing module is used for recording permission-related operation logs to form an auditing log library to support auditing tracking; and the permission implementation module is used for controlling the data field permission of the user according to the three-level permission model during operation. According to the method, the authority control strategy and algorithm are defined, the flexibility and high efficiency of authority control are realized, the cross-mechanism, hierarchical, domain-divided and field-level authority distribution capability is improved, the controllability of approval and auditing is enhanced, and the safety and completeness of production data are facilitated.