158 results about "Distributed structure" patented technology

The invention provides an automatic test system and method capable of being arranged and executed in batches, and the system comprises a test case arrangement plan table which is used for customizing the starting time, the precondition and the dependency relationship of each test item, whether execution is terminated or not when the test item fails, grouping execution, result archiving, product dependency and user-defined labels; the default configuration management module is used for parameterizing execution and supporting simple configuration to realize visual operation of the test script; the software framework supports an object-oriented language and provides multi-process processing to improve execution efficiency; and the distributed structure is used for realizing concurrent parallel execution across a plurality of processors or machines and supporting synchronous import and concurrent asynchronous execution of a plurality of test items. Through the support of multi-process processing and a distributed structure, the advantages of a multi-core processor and computing resources of cross-network nodes can be fully utilized, multiple test items are executed in parallel, the execution efficiency of automatic testing is greatly improved, and the overall testing period is shortened.

The invention relates to a symmetric searchable encryption method and device for big data based on an inverted dictionary, and the method comprises the steps: receiving file data and a target password uploaded by a user in a C / S distributed structure, and controlling a user manager to extract at least one keyword in plaintext data through employing a TF-IDF algorithm and Kmeans clustering combination method, so as to build the inverted dictionary; the method comprises the following steps: encrypting file data by using a preset AES algorithm to obtain encrypted file data, constructing encryption chain tables by using the preset AES algorithm and the like, adding an HMAC message verification code at the tail end of each encryption chain table, and performing noise filling on the encryption chain tables through a target password to generate a node sequence and an index sequence; and querying a file name corresponding to the target keyword through the target password by using the cloud server. Therefore, the problems that extra communication and storage expenses are easily increased, the response speed is low, and a data owner needs to be online for a long time in a single-write multi-read scene when a server performs inert calculation are solved.

The invention discloses vacuum brazing equipment and method for a plate-fin heat exchanger, relates to the field of welding, and aims to solve the problems of low heating efficiency and difficulty in deformation control caused by structural characteristics of the plate-fin heat exchanger and characteristics of vacuum radiation heating at present. Structures such as a hydraulic control system, an upper water-cooling sealing conductive pressure head, a lower conductive base and a tool are added on the basis of traditional vacuum brazing equipment, the structures are compounded with a furnace pipe, an upper electrode of the upper water-cooling sealing conductive pressure head is of a distributed structure and can move up and down through the hydraulic control system, and the upper electrode of the lower water-cooling sealing conductive pressure head can move up and down through the tool. And by matching with a tool, a workpiece can be always stressed uniformly, and continuous and stable self-resistance extremely-fast heat generation electrifying can be ensured. Double-feedback series control is adopted to achieve double-heat-source heating, the heating process time is shortened, a pressure-temperature coupling control method is adopted, it is ensured that stress is uniform, deformation is reduced, and the heating efficiency and the welding quality consistency are improved. And rapid and uniform heating and small deformation control of the workpiece can be realized.

The invention provides a geographic image data distributed structured storage method and related equipment thereof, which can effectively split large-volume geographic image data and then encrypt and store the data, can effectively increase the security and privacy of geographic information data storage, can effectively reduce the repeatability of geographic space information collection, and can improve the efficiency of geographic information collection. Furthermore, large-size image data are divided into small-size data files to be stored, a data acquisition path can be better planned, repeated acquisition caused by storage of overlarge image data is reduced, large-size geographic image data are stored in a fragmented mode, the image data processing speed can be effectively increased, and the processing efficiency of the image data is improved. According to the method, the reading and writing efficiency of the image data is improved, the acquisition efficiency of the geographic image data can be improved while the integrity of the original geographic image data is effectively guaranteed, and the merging display efficiency of the image data is improved.

The invention discloses a federal learning security training method and system based on differential privacy, belongs to the technical field of artificial intelligence, and aims to solve the technical problem of how to realize data privacy protection and model precision balance in cross-mechanism model training. Comprising the following steps: constructing a distributed structure comprising a plurality of clients and a server; each client constructs a noise variance calculation model by taking the gradient feature, the privacy budget coefficient, the data sensitivity level coefficient and the training stage coefficient as calculation parameters after each round of local training is finished, and Gaussian noise is calculated according to the noise variance; verifying the noise variance of each round, and adjusting the calculation parameters of the noise variance based on the comparison result of the accumulated budget consumption and the global privacy budget; dynamically allocating the data sensitivity level of the local training data and the budget allocation proportion of the client; and the server performs secure aggregation through a secret sharing algorithm, and distributes the updated global model parameters to each client.

The invention discloses a graphite diacetylene / copper oxide composite material cocatalyst and a co-production preparation process and application thereof. Graphite diyne has a two-dimensional layered structure and is composed of sp and sp hybridized carbon atoms, a periodically distributed structure is formed, and excellent electron transmission performance and pore structure are shown. An existing graphite diacetylene synthesis method is complex and high in cost, large-scale application of the graphite diacetylene in the industrial field is seriously restricted, the potential value of a copper catalyst cannot be fully exerted, and resource waste is caused. According to the invention, through a simple and efficient co-production process, co-production of graphite diyne and copper oxide nanoparticles is realized for the first time, and the graphite diyne / copper oxide composite material is successfully prepared. The novel composite material can be used as a cocatalyst to effectively improve photocatalytic hydrogen production, and the hydrogen production performance can be comparable with that of noble metal photocatalysts such as Pt. The problems of tedious steps, high energy consumption, low yield and the like in a traditional preparation method are solved, and the preparation method has important application value in the field of high-performance photocatalysis.

The embodiment of the utility model provides a main brush cover, automatic cleaning equipment and a cleaning system, the main brush cover is applied to the automatic cleaning equipment, a distribution structure is arranged on the main brush cover, and the distribution structure moves along with the automatic cleaning equipment. The distributing structure is used for moving sundries on the moving path of the distributing structure out of the moving path. The distribution structure is arranged on the main brush cover, so that sundries on a path can be pushed out of the moving path in the moving process of the automatic cleaning equipment, and the sundries, especially granular sundries, are prevented from being clamped between the automatic cleaning equipment and a to-be-cleaned surface; and the situation that the to-be-cleaned surface is scratched due to the fact that the automatic cleaning equipment drives the granular sundries to move

The invention belongs to the technical field of electromagnetic wave functional materials, and particularly relates to a nested split ring wave-absorbing metamaterial and a preparation method thereof. The wave-absorbing metamaterial sequentially comprises an FSS metal structure layer, a dielectric layer and a metal matrix layer from top to bottom in the thickness direction, the FSS metal structure layer is formed by distributing structure units in a periodic array mode, each structure unit is composed of a double-opening outer ring shaped like a Chinese character'hui 'and a double-opening inner ring, the double-opening outer ring is a split square, and the double-opening inner ring is a hollow square. The structural units are symmetrically arranged about the diagonal line of the dielectric layer. The FSS metal structure layer designed by the invention has anisotropy, so that the polarization direction of an incident wave can be rotated by 90 degrees in a reflection mode. By means of the design, the two functions of electromagnetic wave absorption and polarization conversion are achieved at the same time, and meanwhile the effect of multiband wave absorption is achieved. Within the frequency band of 4 GHz to 18 GHz, the maximum wave-absorbing strength of the nested wave-absorbing metamaterial is as high as-30 dB, and the effective wave-absorbing bandwidth can reach 7.5 GHz.

The invention relates to the technical field of ammonia desulfurization, and particularly discloses a multi-point accurate ammonification distributor, which comprises a distribution pipe group, the distribution pipe group comprises a plurality of ring pipes and a column type box, the plurality of ring pipes are located on the same horizontal plane and are coaxially arranged, the plurality of ring pipes are fixedly connected through a plurality of connecting pipes, and the column type box is fixedly connected with the plurality of connecting pipes. A plurality of connecting pipes which are distributed in an array are arranged between the column type box and the adjacent ring pipe; a plurality of branch pipes are arranged on the side wall of the conveying pipe; the cylindrical box is provided with a plurality of variable-diameter pipes, the variable-diameter pipes are used for spraying out ammonia gas or ammonia liquid, the variable-diameter pipes are arranged at the bottom end of the cylindrical box, the variable-diameter pipes distributed in an array mode are arranged on the side walls of the annular pipes, and the variable-diameter pipes on every two adjacent annular pipes are distributed in a staggered mode. The multi-point ammonia adding device is provided with a multi-point ammonia adding distribution structure and a pressure equalizing structure, the stability of the ammonia gas or ammonia liquid conveying process is improved, the ammonia adding efficiency is improved, maintenance is convenient, and the mixing efficiency of ammonia and absorption liquid is improved.

The invention discloses a distributed transaction coordination system for a high-concurrency scene, and particularly relates to the technical field of distributed computing and transaction management. The system comprises a transaction manager, a resource agent group and a log storage module, the transaction manager receives a transaction request, generates a global transaction identifier and maintains a state machine, and an internal fragment coordinator routes the transaction to different processing fragments according to a consistent Hash algorithm for parallel coordination; the resource agent group is connected with each resource node, executes local operation and reports a state through an asynchronous batch mechanism; and the log storage module adopts a multi-copy distributed structure to persist transaction logs. Through fragment parallel processing, asynchronous state reporting and multi-copy log cooperation, the system throughput is effectively improved, the transaction delay is reduced, and the final consistency and high availability of distributed transactions are guaranteed.

The utility model discloses a distributed wind generating set lubricating system which is characterized in that a grease storage unit is close to a corresponding grease injection point, hydraulic oil provided by a pump module is used as driving force, and lubricating grease in the grease storage unit is injected into the grease injection point; the condition that lubricating grease flows in a long pipeline in a traditional centralized lubrication system is changed, the risk of blockage does not exist any more, in addition, a distributed structure is adopted, the grease storage units correspond to the grease injection points one to one, it is guaranteed that grease injection of other grease injection points cannot be affected when any grease injection point is blocked, the defects of traditional centralized lubrication are overcome, and the service life of the system is prolonged. And as long as the main pipeline or the main distributor is blocked, the system cannot operate. And in addition, the lubricating grease is injected into all grease injection points in the mode that the lubricating grease is pushed by hydraulic oil, and the problem that the system cannot operate due to the fact that air exists in the lubricating grease is solved. And the pressure sensors are used for monitoring the pressure of the corresponding pumping units, so that which grease injection point is blocked can be quickly checked.

The present invention discloses a safety inspection device for electric power equipment, and specifically relates to the technical field of electric power equipment inspection, including a cable, wherein the cable is provided with a plurality of evenly distributed cables, and an inspection mechanism is provided between two adjacent cables, wherein the inspection mechanism includes a first span-shifting member and a second span-shifting member, wherein the first span-shifting member and the second span-shifting member are symmetrically distributed structures, and a connecting member is provided between the first span-shifting member and the second span-shifting member, and the first span-shifting member includes two symmetrically distributed moving drive members, wherein the moving drive members include a bottom moving member and a top moving member. The present invention, by providing a first span-shifting member and a second span-shifting member with the same structure, and using an inspection member and a cleaning member in combination, controls the moving drive members in the first span-shifting member and the second span-shifting member to automatically move on the cable, drives a cleaning brush to automatically move on the cable, automatically cleans the surface of the cable by the cleaning brush, and conveniently drives the inspection member to move, and synchronously and automatically detects the surface of the cable by two detection probes.

The invention relates to the technical field of power distribution networks, in particular to a power distribution network self-healing control method and device and a medium, and the method comprises the steps: building a distributed structure model, obtaining a topological structure, collecting historical power distribution abnormal data, carrying out the data preprocessing and feature extraction, inputting the data into a first deep learning model, training the first deep model, and carrying out the self-healing control of the power distribution network; adjusting parameters to obtain a fault detection model, collecting real-time power distribution data, inputting the real-time power distribution data into the fault detection model, obtaining a power distribution abnormal position, inputting the power distribution abnormal position into a topological structure, obtaining a reconstruction power distribution scheme through calculation, obtaining an influence factor through calculation, collecting power distribution abnormal data and carrying out feature extraction. The second depth model is trained, parameters are adjusted, an oscillation judgment model is obtained, whether oscillation happens to the reconstructed power distribution scheme or not is judged, cost calculation is conducted on the reconstructed power distribution scheme without oscillation, a topological structure is recognized and updated, cost is reduced, and economic benefits are improved.

The utility model discloses a vibrating distributor for a double-frequency vibrating screen, and relates to the technical field related to screening. The material distributing device comprises a material distributing shell, vibration motors, a dustproof cover plate, a material distributing screen frame and a center plate, the dustproof cover plate is arranged above the material distributing shell, the two vibration motors are arranged outside one end of the material distributing shell, the material distributing screen frame is jointly inserted into two installation grooves which are formed in the two inner side walls of the material distributing shell and are inclined in the same direction, and a material distributing screen is fixed in the material distributing screen frame. Dispersion arc plates are fixed to the upper end of the center plate. The material distributing device is provided with the material distributing shell, the material distributing screen frame, the material distributing screen, the vibration motor, the center plate, the dispersing arc plates, the mounting groove and the dustproof cover plate; the distributing device solves the problems that the distributing mode of a conventional distributing device is still not perfect, a screen type distributing structure in the distributing device is inconvenient to disassemble and assemble, and an open structure is easy to cause dust flying, environment pollution and material cost increase when the distributing device is used.

The invention discloses a transmission and distribution integrated network low-carbon optimization scheduling strategy considering carbon transaction and demand response. The transmission and distribution integrated network low-carbon optimization scheduling strategy considering the carbon transaction and the demand response comprises the following steps: constructing a transmission and distribution collaborative optimization scheduling framework based on a typical distributed structure of ITDNs; analyzing and calculating the transmission and distribution collaborative optimization scheduling model to obtain a transmission and distribution collaborative low-carbon optimization scheduling model under coordination of a demand side management strategy and a carbon transaction mechanism; and carrying out distributed solution on the transmission and distribution collaborative low-carbon optimization scheduling model under coordination of a demand side management strategy and a carbon transaction mechanism by adopting an alternating current optimal power flow to obtain a convex non-convex planning sub-problem of a power transmission network and a power distribution network. According to the invention, through a transmission and distribution cooperation double-layer low-carbon optimization scheduling model giving consideration to "source-load" interaction coordination, a problem of insufficient coordination between a transmission network and an active power distribution network easily caused by a traditional transmission and distribution split scheduling mode in the prior art is solved.

The present invention belongs to the technical field of engineering structure analysis and optimization, and discloses a method for predicting vehicle body structural performance based on heterogeneous graph neural networks. The technical points include: sampling the structural samples required by the data set in the design domain to be predicted, using heterogeneous graph representation methods and numerical analysis methods to establish a heterogeneous graph data set; defining the HGNN design space with the HGT layer as the core; using part of the heterogeneous graph data set, controlled random search method and grid search method to construct the optimal HGNN model; using the entire heterogeneous graph data set and the optimal training configuration parameters to complete the training of the optimal HGNN model; using the trained HGNN model to predict the performance of any structural sample in the design domain. The present invention is not only applicable to homogeneous structures corresponding to homogeneous graphs, but also to more widely distributed structures corresponding to heterogeneous graphs, which greatly improves the versatility of the method and enhances the scalability of the method without losing the scope of application.

The utility model belongs to the technical field of building profiles, and particularly relates to a veneer connection transition profile which comprises a main body piece and an auxiliary piece, at least one main body piece is arranged between two horizontally-arranged veneers, a plurality of evenly-distributed structure strengthening protrusions are arranged on the main body piece, and the auxiliary piece is arranged on the main body piece. A male connecting end and a female connecting end which can be matched with each other are arranged on the two sides of the main body piece respectively, and the male connecting end and the female connecting end are laterally connected with the veneer through the auxiliary pieces respectively. Male and female connecting ends which are matched in a concave-convex shape are arranged on the two sides of each main body piece, so that every two adjacent main body pieces can be spliced and connected together, meanwhile, the auxiliary piece fixed to the leveling layer is matched so as to adjust the structural form of the female connecting ends of the main body pieces, and the two sides of each main body piece can be spliced with the veneer. And the fixing effect of the main body piece on the wall surface is further enhanced.

A system, method, and distributed control protocol for autonomous physical structure formation and reconfiguration using programmable matter. The system comprises a plurality of discrete, mechanically interlocking robotic units (“voxels”), each voxel including on-board power storage, computation, sensing, actuation, and selectively switchable inter-unit coupling mechanisms. The voxels are governed by a Symbolic Morphogenic Architecture Kernel configured to receive a digital volumetric structure definition and to compute distributed motion and coupling instructions for the voxels without reliance on external fabrication machinery. Upon receipt of a configuration instruction, the Kernel generates a coordination field that guides stochastic or deterministic voxel movement, enabling the aggregate mass to transition between unlocked and locked states and thereby flow into, rigidize, disassemble, or reshape into a target physical structure. The protocol further includes a distributed structural verification mechanism wherein local voxel processors continuously evaluate load, gravity, and connectivity constraints.

The present invention belongs to the field of autonomous driving technology, and discloses a proximal policy optimization method for autonomous driving decision-making based on distributed exploration enhancement. The present invention designs a distributed architecture of the reinforcement learning decision-making module of the autonomous driving vehicle. Through parallelization and distributed processing, multiple agents can simultaneously perform policy training in different environments, and share policy updates and experience data in real time. In addition, the distributed architecture allows the method to operate on larger data sets and complex environments, improving the adaptability and generalization ability of autonomous driving decisions. The present invention also combines a random network exploration RND module to further enhance the diversity and effectiveness of exploration, and improves the proximal policy optimization algorithm used by the reinforcement learning decision-making module. By combining the distributed architecture with the RND module, the present invention significantly accelerates the training process, improves the exploration efficiency, and comprehensively improves the decision-making quality of the autonomous driving system, and improves the reliability and efficiency of autonomous driving decisions.

The invention discloses a main transmission system of a heavy machine tool. The invention relates to a variable-speed gear shifting mechanism which comprises a power input part, a power to-be-distributed structure, a variable-speed execution selection structure, a gear shifting driving device and a power output structure, and the gear shifting driving device is provided with a gear sleeve matched with the power to-be-distributed structure and the variable-speed execution selection structure and a linear driving mechanism installed in cooperation with the gear sleeve. The linear driving mechanism is connected with the sliding shaft and can drive the sliding shaft to reciprocate so that the variable speed execution selection structure can be matched with the power to-be-distributed structure and the power output structure to achieve output of different rotating speeds. The rigid tapping device has the advantages that rigid tapping can be achieved, the length of a transmission chain is effectively shortened, the rigid tapping device is easy to manufacture and machine, operation accuracy and reliability are guaranteed, the accuracy of a main transmission system is improved, and noise is greatly reduced.

The utility model provides an automatic weighing and distributing machine which comprises a shell assembly and a distributing structure arranged in an inner cavity of the shell assembly, the distributing structure comprises a control mechanism, a discharging mechanism, a weighing mechanism and a distributing mechanism, the discharging mechanism is electrically connected with the control mechanism, the discharging mechanism comprises a discharging groove and a spiral vibration assembly connected with the discharging groove, and the weighing mechanism is electrically connected with the discharging groove. The discharging groove is provided with a first outlet, the weighing mechanism comprises a weighing machine and a weighing container connected with the weighing machine, the first outlet of the discharging groove is formed above an inlet of the weighing container, and the blocking plate of the distributing mechanism is movably arranged at a second outlet of the weighing container. According to the automatic weighing and distributing machine provided by the utility model, the distributing accuracy of materials which are relatively high in viscosity, easy to cake or non-uniform in particle can be improved.

The invention discloses an all-organic battery based on a redox covalent organic polymer as well as a preparation method and application of the all-organic battery. The structure of the two-dimensional covalent organic polymer positive / negative electrode material is rationally designed, so that high output voltage, specific capacity and energy density are expected to be realized at the same time. The electrode provided by the invention adopts an amorphous cross-linked polymer as an active material. Compared with a crystalline inorganic electrode material or a micromolecular organic electrode material, the amorphous structure can provide sufficient internal free volume, and is beneficial to efficient storage and rapid migration of charged ions. Meanwhile, the structure promotes the full contact between the electrode and the electrolyte and effectively reduces the interface impedance, so that the overall electrochemical performance is remarkably improved. The whole preparation process does not involve the use of metal, and the steps are simple; the prepared polymer electrode not only has a uniformly distributed structure, but also has good hydrophilic performance, can be suitable for various application scenes, and has wide development prospects.

The invention discloses an energy storage system and an equalization management strategy thereof, and belongs to the technical field of new energy storage and power generation, and the system comprises a bidirectional energy storage converter, a bidirectional DC converter, a power supply management and control unit, a battery management high-voltage box and a battery system. One end of the bidirectional energy storage converter is externally connected with a load or grid-connected alternating current, the other end of the bidirectional energy storage converter is in bidirectional connection with one end of the bidirectional direct current converter, and the other end of the bidirectional direct current converter is in bidirectional connection with multiple groups of lines of the battery management high-voltage box; the other end of the battery management high-voltage box is bidirectionally connected with a battery system through a plurality of groups of lines, and the power supply management and control unit is in bidirectional communication connection with the bidirectional energy storage converter, the bidirectional direct-current converter and the battery management high-voltage box. According to the energy storage system with a distributed structure, multi-channel independent charging and discharging control is carried out on the battery system through a plurality of mutually independent channels, and rapid energy storage balance between battery packs is realized.

The utility model discloses an integrated towing tugboat assembly distribution structure of a floating type wind turbine generator. The two outwards-expanded ends of a triangular fan floating body are symmetrically connected with low-speed towing tugboats through towing cables, and the two low-speed towing tugboats symmetrically carry out forward towing acceleration on the fan floating body; the system further comprises two pushing tugboats which are symmetrically distributed, and the two pushing tugboats are located on the two sides of the front end of the fan floating body between the two low-speed lifting tugboats respectively. The fan floating body is towed forwards through the low-speed tugboat to be accelerated and advance, in the towing process, pushing and turning can be conducted through the pushing tugboat, and the technical problem that in the prior art, pushing and turning cannot be conducted on a buoyancy base is solved.

A hydrogen fuel cell forklift truck with a distributed architecture includes a frame, and, a hydrogen storage system, a fuel cell, a cooling system and an energy storage system arranged on the frame, and the fuel cell is connected with the hydrogen storage system and the energy storage system for charging the energy storage system and providing kinetic energy; the hydrogen storage system is located outside the fuel cell and exposed to the frame for supplying hydrogen to the fuel cell; the cooling system is located outside the fuel cell and connected to the fuel cell for cooling the fuel cell; the energy storage system is located outside the fuel cell and connected to the fuel cell for recovering braking energy and providing kinetic energy together with the fuel cell.

The invention relates to the technical field of spin vibration screens, in particular to a negative-pressure non-contact spin vibration screen feeding device which comprises a feeding box shell, a dustproof isolation cover, a material uniformizing assembly and a negative-pressure dust removal assembly, a discharging opening is formed in the lower end of the feeding box shell and sleeved with the dustproof isolation cover, the discharging opening is inserted into a screen body feeding opening of a spin vibration screen, and the material uniformizing assembly is connected with the negative-pressure dust removal assembly. Certain gaps are kept between the dustproof isolation cover and a screen body feeding port of the spin vibration screen and between the discharging port and the screen body feeding port of the spin vibration screen, so that it is guaranteed that the feeding device does not make contact with the spin vibration screen, and the negative pressure dust removal assembly is used for keeping the negative pressure state in the feeding box shell; the material uniformizing assembly comprises a transverse material distributing structure and a longitudinal material distributing structure, the transverse material distributing structure comprises a left material distributing plate and a right material distributing plate and is used for dispersing materials in the left-right direction, and the longitudinal material distributing structure comprises a plurality of material uniformizing plates which are used for dispersing the materials in the front-back direction; the feeding device not only can avoid the phenomenon that the production efficiency is reduced due to the damage of the flexible connecting piece, but also has better applicability, and ensures the dispersion effect of materials.

The utility model belongs to the technical field of quantitative food packaging, and particularly relates to a flat scraping type material distributing port for quantitative food packaging, which comprises a fixing plate, a body structure arranged on the right side of the fixing plate, a fixing structure connected to the outer surface of the body structure, and material distributing structures connected to the front surface, the back surface and the bottom end of the body structure. A baffle is installed at the top end of the material distributing opening, grooves are formed in the outer surfaces of the material distributing opening and the baffle, and protruding blocks are arranged in the material distributing opening and the baffle. According to the flat scraping type material distributing opening for quantitative food packaging, through the arrangement of the body structure, the situation that powdery materials are adsorbed to the inner wall due to static electricity and consequently the quantitative discharging effect is affected can be effectively reduced through the grooves and the protruding blocks correspondingly arranged on the surfaces of the material distributing opening and the baffles, and the fixing frame and the material distributing opening are fixedly connected through the limiting columns; and the first movable plate is hinged to the second movable plate, the first scraper and the second scraper can be driven to conduct left-right material distribution, and the sub-packaging efficiency is effectively improved.

The application provides a multi-network domain and multi-tenant authentication method and system based on a distributed structure, and a medium. The method comprises the following steps: respectively deploying controller clusters in different network domains, wherein the controller cluster comprises a controller pool and a plurality of controllers, and the controller pool provides tenant request proxy services for the plurality of controllers; deploying a control center in an area in network communication with each network domain, wherein the controller pool provides access proxy services for the corresponding plurality of controllers to the control center; in response to the controller cluster receiving a tenant request, the controller pool forwards the tenant request to the corresponding controller, the controller generates login information, and accesses the control center through the pushing of the controller pool to perform authentication. The application realizes permission isolation and mutual trust and authentication between self-defined differentiated multi-network domain and multi-tenant, and improves the flexibility and adaptability of the authentication and authorization mode.