86results about How to "Solve protection problems" patented technology

The invention provides a distributed power data asset management privacy protection encryption architecture design method, which comprises the steps of generating a watermark with robustness and imperceptibility by adopting a content-based digital watermarking algorithm according to statistical characteristics of power data assets, and storing a watermark embedding process and an extraction result through a blockchain; a graph-based data model is adopted, the electric power data assets carrying the watermarks serve as nodes, the data flow relation serves as edges, and an electric power data asset consanguinity graph is constructed; for distributed storage of the blood relationship map, a P2P network topology is constructed by adopting a block chain and a distributed hash table, and blood relationship map data is stored in each node of an alliance chain in a distributed manner; and verifying the digital watermark information embedded in all circulation path nodes through which the power data assets pass in the blood relationship map, calculating the similarity between the extracted watermark and the original watermark, calculating the distortion rate, and judging whether the power data assets are tampered or not.

The invention discloses an AI model private domain and public domain cooperative processing system based on data security and privacy protection, and relates to the technical field of artificial intelligence, data security and privacy protection. The co-processing platform is in communication connection with a public and private domain strategy selection module, a private domain data processing module, a secure transmission channel module, a public domain model training and optimizing module, a privacy protection mechanism module and a model feedback and fusion module, and all the modules are in electric signal connection. According to the AI model private domain and public domain co-processing system based on data security and privacy protection, a security co-processing mechanism between the private domain and the public domain is constructed, so that the data security and privacy protection problems in the training and deployment process of the AI model are effectively solved, the generalization ability and accuracy of the model are improved, and the security of the AI model is improved. And privacy security of user data is guaranteed, and a solid guarantee is provided for wide application of the AI technology.

The invention relates to the technical field of relay protection, in particular to a power distribution network relay protection collaborative optimization method and system considering new energy, and the method comprises the steps: constructing a model architecture of a power distribution network; based on the new energy access characteristics, the topological structure of the power distribution network and the line parameters of the power distribution network, performing simulation and calculation on a short-circuit fault possibly occurring in the power distribution network to obtain a short-circuit current calculation result; determining relay protection equipment of the power distribution network according to the topological structure of the power distribution network, and determining a protection constant value of each protection section of the relay protection equipment according to a short-circuit current calculation result and a protection constant value setting principle; establishing an optimization model to update an iteration decision variable, and obtaining an optimal solution of the decision variable; and adjusting the configuration of the relay protection equipment according to the optimal solution of the decision variable. By comprehensively considering the influence of new energy access on short-circuit current distribution, the reliability and effectiveness of a relay protection system are improved, and the economic operation efficiency of a power distribution network is enhanced.

The invention relates to an EMMC (Embedded Multi Media Card) system integrating data protection and recovery functions. The EMMC system is divided into a system partition, a user partition and a backup partition; regularly reading files and state information of the user partition, generating snapshot data, and packaging and storing the snapshot data in a backup partition; monitoring the voltage state of the power supply in real time, immediately starting a super capacitor or a small lithium battery to supply power when the power supply has an interruption risk, ensuring that the EMMC continues to work for a period of time, starting the write-in operation of current data, and transferring the data from the user partition to the backup partition; reading health state indexes of the EMMC in real time, wherein the health state indexes comprise the number of bad blocks, a read-write error rate and life prediction; and when the set health state index threshold value is exceeded, the system triggers early warning and starts a data backup program. According to the invention, the problem that the electronic whiteboard is difficult to protect and recover data when the system fails is solved.

The invention relates to a block chain transaction method supporting privacy protection and identity tracking, and belongs to the technical field of block chain application. The specific process of the method is as follows: a financial management institution FMA generates a public key / private key pair for member registration and anomaly analysis according to a security parameter lambda, and group sending is performed on public keys; deploying a recharging contract and a payment contract on the block chain; each consumer ui registers to the FMA through a mobile device to become a member user of the transaction system, and the consumer holds a group signature key gski returned by the FMA after successful registration; the payment service operator cj registers to the FMA to become a member before providing service, and after successful registration, the payment service operator holds the FMA to return an identifier pid of each product terminal managed by the payment service operator; and the consumer calls a payment contract to carry out order payment based on the signature key gski and the identifier pid of the product terminal, and finally, the method further comprises an anomaly analysis link.

The invention belongs to the field of industrial control and computer data security, and particularly relates to a millisecond-level power failure data protection system for an industrial control panel. The invention discloses a millisecond power failure data protection system for an industrial control panel. The millisecond power failure data protection system comprises a core processing component, a real-time synchronous shadow memory component, a bus voltage monitoring component, a pre-entropy reduction logic control component, a nonvolatile storage component and a flight control bus arbitration component. The bus voltage monitoring assembly monitors a voltage drop trend and performs early warning, the pre-entropy reduction logic control assembly calculates a minimum data survival set according to energy entropy, the real-time synchronous shadow memory assembly constructs a synchronous shadow control domain and atomizes data, and the flight control bus arbitration assembly compulsively takes over a bus and freezes processor access at the moment of power failure. Atomized writing of data into the nonvolatile storage component is guaranteed. According to the invention, zero-delay data protection and millisecond-level hot start recovery at the moment of power failure are realized, and the data security and reliability of the industrial control equipment in a severe environment are enhanced.

The invention provides a substation terminal network equipment defect elimination checking method and system based on deep learning, and the method comprises the following steps: constructing an equipment configuration heterogeneous graph network by a substation client through combining an equipment configuration file, an equipment operation log and equipment network flow data, all the transformer substation clients utilize a heterogeneous graph network to train a local model, the federated learning server updates a shared learning model by combining local training parameters of all the clients, and the clients needing to be checked continue to update the model according to updating parameters of the server; and identifying a configuration mode of local network equipment through the updated model and obtaining a configuration parameter mapping table, generating an equipment checking strategy in combination with the configuration mode and the configuration parameter mapping table, and finishing checking work of all the network equipment through the equipment checking strategy. According to the invention, the transformer substation can accurately complete network equipment checking.

The present invention proposes a method for constructing a railway engineering design knowledge base based on a cloud platform, which is applied to the cloud platform. The method includes: using the cloud platform to collect multimodal data, designing a distributed file system to store preprocessed data, and establishing a data indexing mechanism to retrieve multimodal data; using a deep learning model to intelligently analyze these multimodal data; identifying and extracting entities and relationships in railway engineering design from feature vectors of multimodal data to construct a knowledge graph, and then using a graph neural network to train the knowledge graph; automating design suggestions and optimization plans; constructing a cross-railway engineering design institution sharing model based on federated learning for knowledge sharing and privacy protection; designing a reinforcement learning model to train the simulation environment, and automatically generating a railway engineering design plan based on the trained reinforcement model. The present invention provides an efficient, intelligent and reliable knowledge base construction method for railway engineering design.

The utility model relates to the field of lithium battery management discloses a kind of lithium battery management devices of self-adapting overload protection, including protection shell, and the protection shell top is provided with overload trigger component;The overload trigger component includes base one, and the base one bottom is fixedly connected at the top end of protection shell, and the base one top is fixedly connected with base two, and the base two top is fixedly connected with fixed column, and the base two top is fixedly connected with bimetallic strip, and the base one top is provided with static contact plate, and the static contact plate top is fixedly connected with clamping block.In the utility model, bimetallic strip is moved by heat deformation to drive trigger top rod, so that moving contact and static contact point are separated, and circuit on-off control is realized by reset spring cooperation, so as to carry out overload protection to lithium battery circuit, reach the effect of self-adapting overload protection, improve the security of lithium battery use, solve the problem that traditional fixed threshold protection is prone to false triggering or hysteresis protection.

The invention relates to a federated learning-based commercial data protection system, and the system comprises a federated protection module which is used for obtaining multi-modal behavior feature vectors, forming encryption features, carrying out aggregation operation, forming an encryption view, constructing a relation graph, and carrying out federated risk scoring; the self-adaptive control module is used for selecting a group of response action candidate sets, performing cost-benefit simulation evaluation on candidate actions in the response action candidate sets, generating a response action sequence, issuing a control measure command, verifying whether risk misjudgment occurs or not, and feeding back a verification result to the federal protection module; and the compliance guarantee module is used for acquiring data, carrying out noise addition on the data, locally completing encryption, constructing a verifiable trust and audit chain, hiding technical operation to corresponding legal requirements and dynamically generating a compliance state report. According to the technical scheme, the technical problems that in the prior art, misjudgment and early warning are prone to occurring, effective blocking cannot be conducted before IP leakage occurs, and privacy regulation requirements are not met are solved.

The application belongs to the field of oil exploration, and discloses a protection device for a logging instrument probe. The protection device comprises a protection mechanism and a fixing mechanism. The protection mechanism comprises a first support table, a second support table and a cavity for mounting the logging instrument probe. The fixing mechanism comprises a first clamping seat assembly for fixing the logging instrument probe on the first support table and a second clamping seat assembly for fixing the logging instrument probe on the second support table. The protection device can effectively offset the axial impact on the logging instrument probe, and further meet the requirements of fixing and protecting the logging instrument probe.

The application discloses a leakage-proof buried automobile charging pile and a use method thereof, and relates to the field of charging piles.The device comprises a liftable buried box body, a data acquisition module, a health degree calculation module, a state decision module and an execution control module.The health degree calculation module fuses the collected environmental parameters, electrical parameters and mechanical state parameters into insulation health degree and mechanical health degree.The state decision module converts between sealing, maintenance and service states according to the health degree and leakage risk level and in combination with artificial instructions, and provides a user override channel when the power factor health degree is limited.The device distinguishes between permanent damage and instantaneous fluctuation, avoids logical conflicts of dispersed control by establishing a unified health degree decision center, provides a hierarchical recovery path after failure through the state closed loop of sealing-maintenance-service, and eliminates the spatial blind area of single pile decision through multi-pile cooperation.

The invention discloses a safe and credible electronic evidence management method based on a block chain, and the method comprises the steps: enabling a user to complete the registration of a DID through a distributed credible digital identity authentication module, and generating the DID; the user submits the DID and the legal identity information to a third-party mechanism TA for identity verification and binding operation, and TDID is generated and bound with information for uplink; the user performs identity verification through an electronic evidence security storage module before uploading the evidence, and uploads the evidence to an IPFS (Internet Protocol File System) after the verification is passed to generate evidence meta-information; and uploading the evidence meta-information, performing evidence access and verification on the evidence meta-information, and performing updating operation on the evidence meta-information according to an access verification result. According to the invention, the security, reliability and persistent storage requirements of the electronic evidence are met, and the efficiency of evidence management and search is improved; and meanwhile, the privacy of the user is protected, sensitive information leakage is prevented, and the security and privacy of the electronic evidence are improved.

The present invention belongs to the field of image processing technology, and provides a distributed multi-source image fusion method and system based on privacy protection, including obtaining a global model; training the global model, obtaining local model parameters and sending them to a server for aggregation, obtaining a new global model, and sending the new global model to each client; classifying the clients into clusters according to task categories, training the new global model with specific tasks, obtaining specific task model parameters, aggregating the specific task model parameters in the cluster, and distributing the aggregated parameters to each client in the cluster, updating the global model to obtain a fusion network model; training a detail network model, and adding the outputs of the detail network model and the fusion network model to obtain a fusion result. The present invention can effectively improve the quality and efficiency of multimodal image fusion while ensuring data privacy and security, while reducing the operating cost and energy consumption of the system.

The invention discloses a pre-termination of an indoor and outdoor lead-in flat cable and a processing method thereof, the pre-termination of the indoor and outdoor lead-in flat cable comprises a flat cable body, two ends of the flat cable body are respectively and fixedly provided with an A-end flat multi-core splitter and a B-end flat multi-core splitter, the pre-termination flat cable technology is adopted, the technical cost required by construction welding is effectively reduced, and the construction efficiency is improved. On-site labor cost burdens are reduced for customers, the overall application cost is further reduced, in addition, due to the pre-terminating design, the labor cost is greatly reduced, the construction efficiency is greatly improved, the convenience of taking and using is achieved, rapid project promotion is ensured, and therefore the market competitiveness of products is enhanced on the efficiency level; compared with an on-site welding flat cable, the pre-terminating scheme has the advantages that the reliability of an interface position is obviously improved, the problems of limitation of straight pulling and side pulling and interface protection in on-site welding are solved, the bottleneck is thoroughly eliminated, and a new benchmark is established for the product reliability.

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 discloses a portable debugging miniature Bluetooth measurement and control relay integrated device, comprising a single-chip microcomputer measurement and control module (1) and a relay drive circuit module (3) connected to the outside of a relay (JD1) for measuring the voltage of a circuit to be tested, wherein the relay drive circuit module (3) supplies power to an excitation coil of the relay (JD1) after receiving a relay execution action trigger signal sent by the single-chip microcomputer measurement and control module (1); a Bluetooth communication module (2) connected to the single-chip microcomputer measurement and control module (1) is also provided outside the relay (JD1), and the Bluetooth communication module (2) is connected to a debugger's smart phone for communication, and sends voltage real-time measurement data to the debugger's smart phone according to instructions sent by the debugger's smart phone. The invention can provide multi-channel voltage simultaneous measurement and protection control functions, and the debugger can remotely monitor the device through a smart phone. The device is easy to use, highly adaptable, and highly safe.

The invention discloses a multi-device data transmission method based on differential privacy, which is applied to a multi-device communication system, and comprises the following steps: the system acquires original data, resource information data and path information data of a plurality of devices contained in the system, preprocesses each original data, and then constructs a super object model; obtaining a resource state vector and a topological structure adjacency list of each device through the super object model, wherein the system performs differential privacy processing on the resource state vector, the topological structure adjacency list and parameters in the process of dynamically updating the super object model; carrying out shortest path selection on the data transmission path of each device; the system fragments a data packet to be sent and distributes fragmented data to each device according to a load balancing principle, each device transmits the fragmented data to a receiving device, and the receiving device recombines and verifies the fragmented data after receiving the fragmented data. According to the invention, the transmission efficiency is improved while the data transmission privacy is ensured.

The invention provides safety auxiliary equipment for a breathing machine in a thoracic surgical operation, and belongs to the technical field of safety assistion.The safety auxiliary equipment for the breathing machine in the thoracic surgical operation comprises a base, a supporting column, a rotating arm, a liquid storage tank, a disinfectant supply pipe, an atomizing nozzle, a breathing pipe fixing frame, a quick connector, a sealing cover and an exhaust valve; the base is disc-shaped, and an anti-skid pad is arranged at the bottom of the base; the supporting column is vertically fixed to the center position of the base and is of a hollow structure. The rotating arm is rotationally connected with the top end of the supporting column through a bearing, and the rotating arm is of an L-shaped structure; the liquid storage tank is fixedly installed on the horizontal section of the rotating arm, the liquid storage tank is of a double-layer structure and comprises an outer-layer tank body and an inner-layer tank body, and an annular cavity is formed between the outer-layer tank body and the inner-layer tank body; one end of the disinfectant supply pipe is connected with a liquid outlet of the liquid storage tank, and the other end of the disinfectant supply pipe is connected with the atomizing nozzle; the atomizing nozzle is of a multi-angle adjustable structure and is fixedly installed at the bottom of the vertical section of the rotating arm.

A real-time monitoring device for the wear of a mill liner includes a monitoring component, an information interaction component and a control mechanism. The monitoring component is provided with a detection bolt, one end of which passes through the mill cylinder and the mill liner in sequence and is flush with the inner edge of the mill liner, and the other end of the detection bolt extends out of the outside of the mill cylinder. The interior of the detection bolt is a hollow structure, and the hollow structure is sealed and fixed with a sensor probe by an insulating castable. The real-time monitoring device for the wear of a mill liner of the present invention can effectively monitor the wear of the mill liner in real time and accurately without stopping the mill, thereby improving the effective utilization rate of the mill liner and improving the production efficiency of the mill.

The present application discloses a method and device for MEC task offloading with joint resource allocation and privacy protection, and relates to the field of computer technology. The method includes: obtaining information of tasks to be processed; constructing a communication model, a computing model and a joint privacy entropy model, and establishing an optimization model for the association between task offloading ratio, network selection, resource allocation, task processing time and joint privacy entropy; solving the optimization model using a double-layer offloading algorithm, and obtaining corresponding strategies; selecting and allocating tasks to different offloading locations according to the strategies, and selecting corresponding network transmission data. The present application combines resource allocation and privacy protection in the task offloading process, while taking into account multi-network data transmission, which can further reduce the terminal task processing time and ensure the privacy security of task offloading. At the same time, the present application adopts a hierarchical mode to construct an offloading model and design an offloading algorithm, which reduces the complexity of the joint task offloading problem.

The present application relates to an accident data aggregation statistical analysis method, device and equipment based on an image map, the method comprising: collecting accident data and performing deduplication processing on the accident data; aggregating the accident data and anonymizing unit information and personal information; performing correlation analysis on the aggregated accident data to determine the statistical laws between the accident data; visualizing the accident data on an image map at multiple scales according to the statistical laws; the multi-scale display comprises aggregating and displaying the number of accidents corresponding to each accident data at a first scale, and displaying the accident occurrence points corresponding to each accident data at a second scale, wherein the first scale is larger than the second scale. The accident data includes the time information, location information, category information, unit information and personal information of the accident. The purpose of significantly improving the quality of statistical analysis of accident information is achieved.

The present application relates to the field of water and electricity relay protection, and specifically discloses a kind of water and electricity relay protection defect intelligent diagnosis method, device, equipment and medium, the method comprises: collecting the topology of hydropower station and equipment parameters, constructs node admittance matrix and divides fault point;Establishes the equivalent model of transient potential variation of hydroelectric generating set, introduces dynamic impedance compensation factor to solve short-circuit current and calculates contribution rate matrix;Carry out frequency domain analysis to extract characteristic frequency component, when waveform distortion or low-frequency oscillation in strong coupling area exceeds threshold value, select compensation model to correct sensitivity coefficient, draw protection characteristic curve and identify cooperation interface point.The present application solves the problem of large deviation in fault current calculation and sensitivity distortion caused by ignoring transient potential attenuation and harmonic, low-frequency oscillation in prior art through dynamic impedance compensation and frequency domain compensation model, realizes intelligent and accurate diagnosis of water and electricity relay protection defects.

The invention discloses a quick switching welding fixture which comprises a bottom plate, a supporting seat is mounted in the middle of the bottom plate, a fixture is mounted at the top of the supporting seat, a plurality of side positioning seats are adjustably mounted on the outer side of the fixture, and a plurality of lifting positioning mechanisms are mounted on the portions, located on the two sides of the fixture, of the bottom plate. A first supporting plate is installed on the bottom plate and located on the outer side of the side positioning seat, and a hoisting column is installed on the bottom plate and located on the first supporting plate. According to the welding device, the multiple through holes are formed in the position, located on the clamp, of the supporting base, the dust collection pipeline communicating with the through holes is installed on the supporting base, and welding powder can be removed through the dust collection pipeline; each row of clamps comprises a plurality of S-pole magnets and a plurality of N-pole magnets, and the S-pole magnets and the N-pole magnets in each row are alternately arranged; the S-pole magnets in one row and the N-pole magnets in the other row are correspondingly arranged; when a plurality of electromagnet clamps are continuously spliced, the problem that a gap between plate tails becomes large during welding is solved by changing two stages of two adjacent clamps.

The utility model relates to the technical field of warehouse logistics, and discloses a storage rack for logistics warehousing, which comprises a bearing plate and a connecting plate, an adjusting mechanism is arranged on the upper surface of the bearing plate, the adjusting mechanism comprises a connecting frame, a T-shaped connecting slide block and a threaded rod, and the bottom of the connecting frame is fixedly connected with the upper surface of the bearing plate. According to the storage rack for logistics storage, through use of a connecting frame and a rectangular groove, a T-shaped connecting sliding block can slide up and down on the inner wall of the rectangular groove formed in the connecting frame, so that the effect of conveniently taking and placing goods with different heights is achieved; according to the goods storage device, after a connecting plate and a storage plate are moved to the related position heights, the purpose of conveniently taking and placing the goods is achieved, the effect of more conveniently storing the goods during use can be achieved, and the space between storage spaces can be conveniently adjusted so that the goods storage device can adapt to stable storage of different goods.

The application is suitable for the field of automation equipment, and provides a pressure self-adaptive flexible gripping mechanical arm for desert tree planting, which is a three-section column modular structure, is composed of a light-weight protective guide rail, a multi-degree-of-freedom modular mechanical arm and a pressure self-adaptive flexible mechanical claw connected coaxially in sequence, and each unit is detachably connected through quick-change pin shafts.The light-weight protective guide rail realizes dust prevention by using built-in slide rails and upper cleaning micro-holes; the multi-degree-of-freedom modular mechanical arm realizes light weight and high rigidity by using hollow transmission rods and triangular reinforcing rib supports; the pressure self-adaptive flexible mechanical claw realizes lossless and stable gripping of irregular sand willow seedlings by using an asymmetric arc envelope structure matched with a thin film type force sensor closed loop control; and a posture compensation mechanism is further arranged to ensure that the seedlings are vertically planted into the soil.The application solves the problems of easy jamming of the kinematic pair in the desert windy and sandy environment, difficulty in field maintenance, damage and tilting planting of the seedlings, and improves the operation reliability and the survival rate of the seedlings.

The utility model provides a ship cabin liquid level telemetering probe protection device which comprises a protection cover, the protection cover is of a cylindrical structure with one closed end and one open end, a plurality of sets of lug plates are fixedly arranged at the bottom of the outer side wall of the open end of the protection cover, every two lug plates form one set, and the length directions of the lug plates extend outwards in the radial direction of the protection cover. A round hole is formed in the center of the end part of one end, far away from the protective cover, of the lug plate; the round hole end of the lug plate is fixedly connected with the protected liquid level telemetering probe through a bolt; a rectangular groove hole extending from bottom to top is formed in the circumferential side wall of the protection cover, and the bottom end of the rectangular groove hole and the lower end face of the protection cover are located in the same horizontal plane. According to the ship cabin liquid level telemetering probe protection device, the liquid level telemetering probe is prevented from being damaged, the service life of the liquid level telemetering probe is prolonged, and therefore reliability and accuracy of measurement and monitoring of various data of a ship cabin are improved, and safe driving of a ship is guaranteed.

The ship cabin liquid level switch protection device comprises a protection cover body, one side face of the protection cover body is of an open structure, the protection cover body comprises a fixed panel at the bottom, the fixed panel is connected with a liquid level switch, the upper portion of the liquid level switch penetrates through the fixed panel and extends into the protection cover body, and the liquid level switch is arranged in the protection cover body. The upper portion of the liquid level switch is located in the protective cover body, and a signal line at the upper end of the liquid level switch extends out of the open structure of the protective cover body. According to the ship cabin liquid level switch protection device provided by the utility model, the liquid level switch can be always in a semi-closed protected state, the ship liquid level switch is greatly ensured not to be easily damaged by external force, the service life of the liquid level switch is prolonged, and the accuracy of acquisition of various data of a cabin is improved; and safe navigation of the ship is ensured.

The invention relates to the technical field of intelligent household electrical appliance and flexible electric heating safety control, in particular to an electric blanket power control system and method, and the method comprises the steps: collecting a real-time voltage sampling sequence and a real-time loop current sampling sequence of an electric heating load, and calculating an actual measurement impedance sequence; constructing a virtual fault state, and generating a theoretical folding fault trajectory; calculating a difference value between the theoretical folding fault trajectory and the ideal impedance trajectory, and marking the difference value as a theoretical residual sequence; calculating the trend similarity between the actually measured residual error sequence and the theoretical residual error sequence; if the trend similarity is greater than a preset judgment threshold, judging that the current state is a folding overheating fault, and executing a latch-up protection strategy; otherwise, the current state is judged to be normal heat storage fluctuation, and a constant temperature adjusting strategy is executed; according to the invention, the problem of pain points of easy false alarm or protection delay in the prior art is solved, and the intelligent identification capability of the system is significantly improved.

The present application relates to the technical field of skin bag material, and particularly relates to a weather-resistant elastic composite skin bag material and a preparation method thereof, which is prepared from the following components: 65-85 parts of elastic matrix resin, 10-20 parts of elastic reinforcing agent, 4-9 parts of weather-resistant agent, 1-4 parts of plasticizer, 0.5-2.0 parts of antioxidant, and 0.3-1.0 parts of lubricant. The present application designs a multi-component synergistic composite weather-resistant agent to achieve all-round weather resistance: abandoning the single action mode of traditional small-molecule weather-resistant agents, adopting bentonite, boron nitride and nano-silicon carbide as physical barrier phases, lanthanum oxide as a chemical stable phase, chitosan and sodium silicate as interface compatible phases, and nano-cellulose agent as a dispersion reinforcing phase.