30results about How to "Improve expansion efficiency" patented technology

The invention provides a cloud computer integrated storage method and device, electronic equipment, a chip and a medium, and the method comprises the steps: determining the prediction time when the usage amount of a local storage space exceeds a preset threshold value based on local storage data, and enabling the prediction time to be obtained through the prediction of a trained target prediction model; according to the storage information configuration file, a target cloud storage space is determined from at least one cloud storage space contained in the storage information configuration file, and the cloud storage space is used for the cloud application to store data; before the prediction time, mounting the target cloud storage space to a local mounting point; and uploading the file written into the local mounting point to the target cloud storage space. According to the invention, the cloud storage space of other cloud applications can be integrated to the local cloud computer client, the integrated storage of the cloud computer client and the cloud storage space is realized, the utilization rate of the storage space is improved, elastic capacity expansion can be realized according to requirements through automatic mounting, the user experience is improved, and the capacity expansion efficiency is improved.

The invention provides an Internet of Vehicles vulnerability knowledge graph updating method based on a cloud platform, and the method comprises the steps: monitoring vulnerability updating information, carrying out the popularity analysis, screening out the information with high popularity based on a popularity threshold value, and extracting potential entities from the information; expanding the potential entity; and updating the knowledge graph based on the potential entities. According to the method, the dispersed vulnerability information is integrated in a manner of establishing the knowledge graph, so that the problem of information fragmentation is eliminated, network security managers can understand and utilize the vulnerability information more quickly and accurately, and the efficiency of coping with vulnerabilities is improved. On the basis, in order to ensure the real-time performance and accuracy of the Internet of Vehicles vulnerability information knowledge graph, a plurality of data sources are further monitored in real time through technologies such as machine learning and data mining, and potential entities needing to be updated are screened out for updating the knowledge graph in real time.

The invention discloses a constant-pressure type compressed air energy storage system and method combined with pumping and storage, and belongs to the technical field of electric energy physical energy storage systems, and the constant-pressure type energy storage system comprises a pumped storage subsystem, a turbine expansion power generation subsystem, a compressed air energy storage subsystem and a water-gas common-capacity cabin constant-pressure subsystem. By flexibly controlling the operation modes of the subsystems and the on-off states of valves among the subsystems, the system can achieve independent energy storage and power generation operation among the pumped storage subsystem, the air compression subsystem and the turbine expansion subsystem. The design not only improves the flexibility and reliability of the system, but also enables the system to carry out optimal configuration and operation according to actual demands, thereby further improving the energy storage efficiency and economic benefits.

The invention relates to the field of microorganism culture devices, and discloses a microorganism expanding culture device and an expanding culture method thereof. The microorganism expanding culture device comprises a cabinet body, wherein an expanding culture reaction mechanism, a supply mechanism and a control mechanism are arranged in the cabinet body; the propagation reaction mechanism comprises a propagation reaction cylinder, a cylinder cover plate, an electric device and a stirring assembly; the propagation reaction cylinder is fixedly connected with the cabinet body; the cylinder cover plate is connected with the electric device; the power output end of the electric device is connected with the stirring assembly through the barrel cover plate; the stirring assembly is arranged in the propagation reaction cylinder; the supply mechanism is connected with the barrel cover plate and comprises a hot water supply assembly, and the hot water supply assembly is connected with the barrel cover plate. The temperature suitable for efficient propagation of strains can be achieved when the temperature is low in winter, the intelligent degree of the propagation process is improved, accurate monitoring of the propagation process and device integration of subsequent equipment cleaning are achieved, and efficient propagation of microorganisms is achieved on the whole.

The invention discloses a metadata processing method and device, a storage medium and electronic equipment. The method comprises the steps that sampling marking operation is carried out on a container set, container set information is determined, a target container is determined according to the container set information, and the container set information comprises migration marks, migration allowing time periods and container loads of all containers in the container set; the target container represents a container of which the container load meets a preset load condition in the container set, and the allowable migration time period corresponding to the target container is a target time period; adding the target container to a to-be-migrated queue; the target metadata stored in the target container is migrated to a target server in a block mode according to the queue to be migrated in response to the fact that the system time reaches the target time period, and the target server is different from a server deployed by the target host machine. According to the method and the device, the technical problems of relatively high loss of capacity expansion performance and relatively low capacity expansion reliability caused by overlarge storage and access overhead of the metadata are solved.

The utility model provides a kind of microalgae propagation device, including incubator body and the incubator cover of being arranged on the top surface of incubator body;The inner wall of the incubator body is spirally provided with heating wire, and the middle part of the incubator body is provided with four groups of fixing bases, and the four groups of fixing bases are arranged in rectangular mode;Each group of fixing base surface is provided with a group of culture tank;The middle part of the incubator cover is provided with stirring module;Heating wire heats water in incubator body, and water in incubator body is stirred by stirring module, so that water in incubator body is heated more evenly, and it is ensured that microalgae in incubator body can be in suitable temperature for growth, and the efficiency of microalgae propagation is improved.

This invention provides a balloon microcatheter, relating to the field of medical devices. The balloon microcatheter includes an outer tube, a balloon, a connecting tube, and a reducing tube. The balloon is disposed at the distal end of the outer tube, and the connecting tube passes through the outer tube. The wall of the connecting tube has a through hole, and a first channel is defined between the outer wall of the connecting tube and the inner wall of the outer tube. The first channel communicates with the through hole and connects to the balloon. The connecting tube is sleeved on the outside of the reducing tube. When pressure is applied into the reducing tube, the inner diameter of the reducing tube increases, effectively increasing the space of the infusion cavity and improving the infusion efficiency of the balloon microcatheter. When pressure is applied into the first channel, the outer diameter of the reducing tube decreases. At this time, the space of the second channel formed between the outer wall of the reducing tube and the inner wall of the connecting tube increases. The second channel and the first channel together form the filling cavity, effectively increasing the space of the filling cavity and thus improving the balloon inflation efficiency.

And the heat exchange tube and the tube plate are sealed by the tube expanding device. Relates to the field of heat exchanger production equipment. Comprising a gun-shaped shell, a mounting rod is arranged at the transverse end of the shell, a hydraulic expansion head is rotationally connected to the end of the mounting rod, the operating platform comprises a platen and a sliding plate, and the platen and the sliding plate are connected through a hydraulic rod; a dovetail groove is formed in the top of the table plate, a bearing block is adaptively arranged in the dovetail groove, an insertion hole is formed in the top of the bearing block, and the vertical end of the shell is inserted into the insertion hole; and a universal wheel is arranged at each of the four corners of the bottom of the sliding plate. According to the device, physical exhaustion of operators can be reduced, the butt joint difficulty can be reduced, and the expansion joint efficiency is effectively improved.

The invention discloses a software intelligent interaction channel expansion method based on bypass architecture, which is applied to an intelligent agent side and comprises the following steps: receiving a task instruction issued by a user side, processing task data corresponding to the task instruction, and determining a task demand under the condition that the task data information is complete, the task requirement carries a task type and a task requirement; generating an initial software state label based on a current operating system interface screenshot, determining a current software state based on the initial software state label, and generating an execution scheme according with a target format according to the current software state, the task demand and priori knowledge; and simulating keyboard and mouse input according to the execution scheme to carry out software operation so as to realize a user request. By applying the method, the intelligent interaction capability can be newly increased for the software through a non-intrusive bypass architecture.

The invention discloses a progressive upgrading method for an SDN (Software Defined Network). An SDN controller periodically acquires a historical traffic matrix of a hybrid network in a hybrid acquisition mode through management connection; performing order polynomial fitting on the traffic time sequence by using a least square method to generate a predicted traffic matrix; taking a prediction traffic matrix and a network topology as input, constructing an optimization model taking maximization of an SDN controllable traffic scale as a core target and taking upgrading budget and a link utilization rate as constraints, and efficiently solving and outputting an upgrading priority list of traditional nodes through a dual rising method of dual weights; and executing upgrading and evaluating the effect according to the list to form closed-loop optimization. According to the method, the characteristic of partial path controllability of the SDN is fully utilized, the contribution of node upgrading to the controllable flow is quantified, the SDN control range is rapidly expanded on the premise of ensuring the network performance, and the core value of progressive migration is improved.

The present invention relates to the technical field of cluster expansion, and provides a large-scale storage cluster expansion grouping method and device. The method of the present invention comprises: parsing the storage node information selected by the user, initializing a grouping sequence, and sequentially adding the storage nodes to the grouping sequence in IP order; setting the grouping node upper limit, traversing the existing groups in the traversal order, obtaining the information of the current grouping, judging whether the number of nodes in the current grouping has reached the grouping node upper limit, and judging whether to traverse the next grouping or perform node addition processing on the current grouping according to the judgment result; after completing the traversal of the existing groups, comparing the number of remaining nodes to be grouped in the grouping sequence with the grouping node upper limit, and grouping the remaining nodes to be grouped in the grouping sequence according to the comparison result; and updating the grouping information in the distributed configuration file. The present invention can improve the efficiency of cluster expansion grouping.

The invention relates to the field of precision marketing, and provides a product recommendation method, device and equipment, a storage medium and a program product.The method comprises the steps that a standardized demand corresponding to the purchase intention of a target user and historical sales data under the standardized demand are obtained; obtaining each to-be-recommended product under the standardized demand from a standardized product database to obtain a product recommendation pool; and according to the historical sales data, constructing a user portrait under a standardized demand, and based on the user portrait, matching a target product from a product recommendation pool and recommending the target product to a target user. According to the method, standardized precipitation is carried out on business scenes and demands, user portraits under standardized demands are matched with products based on association relationships among the scenes, the demands and the products, different product feature intentions corresponding to differentiated demands under different scenes are considered, the matching degree of the products and the demands is improved, and the user experience is improved. Therefore, the accuracy of product recommendation is improved, and meanwhile, business personnel can focus on user requirements to improve the business expansion efficiency.

The utility model belongs to the technical field of fungus inoculation tools, and particularly discloses a fungus slant inoculation tool. The inoculation tool is used for solving the problems that spores cannot be collected thoroughly when being scraped by an existing inoculation tool, and the spores are easy to scatter. The fungus slant inoculation tool comprises a handle, a connecting rod and a scraping shovel, the front end of the handle is fixedly connected with the rear end of the connecting rod, and the front end of the connecting rod is connected with the middle position of the rear end of the scraping shovel; the scraping shovel comprises a shovel face and blocking pieces, the blocking pieces are arranged on the periphery of the shovel face, the front end of the shovel face is concaved inwards to be in a crescent shape, a gap is reserved between the blocking piece located on the front side of the shovel face and the front end edge of the shovel face, the vertical distance between the lower edge of the blocking piece located on the front side of the shovel face and the crescent shovel face is 1-2 mm, and the upper edges of the blocking pieces are flush with one another. According to the utility model, the crescent shovel surface is matched with the baffle plate positioned on the front side of the shovel surface, so that the spores on the inclined surface can be quickly scraped and collected, the spores are prevented from overflowing and scattering, and infectious microbe pollution and strain waste are reduced.

The utility model provides a multi-stage heterogeneous turbine coupling type composite cascade power generation system which comprises a low-temperature preheater, a medium-temperature evaporator, a high-temperature heat absorber, a high-pressure radial turbine, a generator I, a low-pressure axial turbine, a generator II, a working medium pump I, a gas-liquid separator, a condenser, a working medium pump II and working medium pipelines among all the components. High-pressure supercritical heat absorption and low-pressure subcritical heat absorption of a working medium are coupled to form a dual-pressure heat absorption organic Rankine cycle, the design of coupling multi-stage heterogeneous turbines is adopted in the expansion power generation process of the system, and higher expansion efficiency can be achieved through all-stage cooperative expansion, so that the working efficiency and the heat utilization rate of the system are effectively improved; and efficient gradient utilization of medium and low temperature heat energy is facilitated.

The invention discloses a data expansion and exoskeleton joint end-to-end torque estimation method based on a diffusion model, and the method comprises the steps: carrying out the normalization processing of time series data from a multi-source sensor, carrying out the fragmentation according to a fixed length, and constructing a training sample with a motion class label; then, training a classifier-free conditional diffusion model by adopting a sample, and simultaneously learning conditional and unconditional denoising mapping relationships in a manner of randomly inactivating category conditions; in the generation stage, based on a classifier-free condition guidance mechanism, multi-modal time series data with specified motion category features are gradually generated from random noise; and finally, fusing the generated synthetic data with real acquired data to train a joint torque end-to-end prediction network, thereby realizing joint torque estimation of input sensor time sequence data. The method improves the prediction precision, generalization ability and stability of the end-to-end torque estimation model in a multi-action and few-sample scene, and has a good engineering application value.

The invention discloses an injection molding machine for injection molding a plug power cord, belonging to the technical field of injection molding. The gas inside the airbag is heated by a heat-conducting wire, so that the inner cavity of the airbag forms an upward airflow with the outside through a connecting through hole and an air inlet through hole, and the hot air continuously overflows to the inner cavity of the mold through the connecting through hole and the air inlet through hole. In the process that the connecting ring is gradually pressed down, the connecting cylinder is pushed, and the second through hole on the connecting cylinder finally coincides with the first through hole on the sleeve, so that the atomized demoulding agent in the inner cavity of the connecting cylinder enters the inner cavity of the airbag, and the atomized demoulding agent in the inner cavity of the airbag enters the inner cavity of the mold in cooperation with the upward airflow, and fully covers the inner cavity of the mold, and then the injection molding operation is performed. In the specific operation process, the demoulding agent can be formed on the inner wall of the mold while the upper mold is covered, and there is no need to spray the demoulding agent on the inner cavity of the mold regularly before injection molding, thereby improving work efficiency.

An internal combustion engine for achieving compression ratio and expansion ratio decoupling is characterized in that the internal combustion engine is composed of an independent compressor and an independent expansion machine, an intercooler and a combustion chamber are arranged between a compressor air cylinder and an expansion machine air cylinder, and the intercooler and the combustion chamber are connected through a pipeline and a valve system. Separation of the compressor from the expander decouples the compression ratio and the expansion ratio, thereby forming a low compression ratio and an ultra-high expansion ratio. For example, when the compression ratio is 10: 1, the expansion ratio can reach 30: 1. In particular, the internal combustion engine has a new combustion mode, which has a strong ability to resist knocking.

The application discloses a constant-pressure compressed air energy storage system and method combined with pumped storage, and belongs to the technical field of physical energy storage systems. The constant-pressure energy storage system comprises a pumped storage subsystem, a turbine expansion generation subsystem, a compressed air energy storage subsystem and a water-gas coexistence cabin constant-pressure subsystem. The application can realize independent energy storage and power generation operation among the pumped storage subsystem, the air compression subsystem and the turbine expansion subsystem by flexibly controlling the operation modes of the subsystems and the valve opening and closing states among the subsystems. The design improves the flexibility and reliability of the system, and enables the system to be optimally configured and operated according to actual requirements, thereby further improving the energy storage efficiency and economic benefits.

The invention discloses a system capacity expansion method, device and equipment, a medium and a product. The method comprises the following steps: under the condition that a network connection viewing request for a to-be-detected system is received, determining a corresponding port occupation proportion of the to-be-detected system at the current moment; and under the condition that the port occupation proportion is not less than a preset capacity expansion threshold value, carrying out capacity expansion on the port configuration quantity corresponding to the current moment according to a preset capacity expansion step length. According to the technical scheme provided by the embodiment of the invention, the effect of carrying out self-adaptive capacity expansion on the use upper limit of the random port under the emergency condition is realized, and the capacity expansion efficiency and the capacity expansion timeliness are improved.

The invention relates to the technical field of financial science and technology, and particularly discloses a business process processing method and device, computer equipment, a computer readable storage medium and a computer program product. The method comprises the following steps: in response to an external data access request for a resource lending service, acquiring external data corresponding to the external data access request from an external data storage system; the external data is used for determining the amount of resources which can be borrowed by a user account handling the resource borrowing service; determining an external data access process for the external data according to the data characteristics of the external data; the external data access process is used for processing external data according to a preset data processing mode; accessing the external data access process to an original service process of the resource borrowing service to obtain a target service process; deploying a target business process; the target business process is used for transferring resources to the user account handling the resource borrowing business. By adopting the method, the beneficial effect of improving the development efficiency of the business process can be achieved.

The invention relates to an expanding culture method and application of beer yeast, and relates to the technical field of beer brewing. The expanding culture method comprises the following steps: first-stage expanding culture: adding a culture medium inoculated with beer yeast into expanding culture wort, and carrying out first gradient oxygenation expanding culture to obtain a first expanding culture solution; second-stage expanding culture: adding the first expanding culture solution into expanding culture wort, and carrying out second gradient oxygenation expanding culture to obtain a second expanding culture solution; and third-stage expanding culture: adding the second expanding culture solution into expanding culture wort, and carrying out third gradient oxygenation expanding culture to obtain a third expanding culture solution which is used for fermentation. According to the expanding culture method, through a three-stage incremental oxygenation mode, the requirement of beer yeast for oxygen in different growth stages is well met, the growth and reproduction of the yeast are promoted, and the expanding culture efficiency is improved; the reasonable incremental oxygenation strategy is beneficial to optimizing the metabolic pathway of the yeast and improving the activity and fermentation performance of the yeast.

The utility model discloses a cable joint waterproof protection device, which belongs to the technical field of cable joint waterproof protection, and is characterized in that the middle section of the inner wall of a joint pipe is provided with an annular sinking groove, an expansion air bag is connected in the annular sinking groove, the expansion air bag and the annular sinking groove are filled with filling protection balls, and the expansion of the expansion air bag is realized through the filling protection balls; the cable in the joint pipe is further extruded to realize internal waterproof protection; a cable chuck is arranged at the front end of the connector pipe, a plurality of notches are formed in the front end of the cable chuck, and sealing rings are arranged at the positions of the cable chuck and the notches. The protection ball fills the annular sinking groove and makes contact with the expansion air bag. The air bag expands under pressure and extrudes the cable to form a tight waterproof layer, thereby ensuring the safety of the cable joint and preventing moisture and harmful substances from invading. The U-shaped design of the expansion air bag improves the expansion efficiency, optimizes the space, and enables the device to be more compact and efficient. The design reduces the size and weight, does not sacrifice the waterproof effect, and facilitates the installation and use of the cable joint.

This application discloses a pipe expanding tool and control method, belonging to the field of pipe expanding technology. The expanding tool includes a housing, a pin assembly, a rotating assembly, and an expanding head assembly. The pin assembly includes a pin and a linear drive mechanism, which is connected to the housing. The pin is driven by the linear drive mechanism to move axially along the pin. The rotating assembly includes an auxiliary motor and a transmission component, which is rotatably connected to the housing and driven to rotate by the auxiliary motor. The expanding head assembly is connected to the housing and is driven by the transmission component. The expanding head assembly also engages with the pin. The linear drive mechanism drives the expanding head assembly to expand the pipe radially outward through the pin. The auxiliary motor drives the expanding head assembly to rotate through the transmission component, allowing the expanding head assembly to expand the pipe at different circumferential positions. By controlling the rotation of the expanding head assembly with the auxiliary motor, an appropriate rotation angle can be set according to different pipes, increasing the efficiency of pipe expanding.

The utility model discloses a vitrified micro-bead expansion distributing device which comprises a feeding cylinder, an annular supporting table is fixedly connected to the outer wall of the feeding cylinder, an expansion furnace is fixedly connected to the bottom of the annular supporting table, a fixing base is fixedly connected to the inner wall of the bottom of the feeding cylinder, a stud is rotationally connected to the top of the fixing base, and the stud is fixedly connected to the outer wall of the feeding cylinder. The outer wall of the stud is in threaded connection with a movable seat, the movable seat is in sliding connection with the feeding cylinder, in the material distribution process, the pulsating vibrator and the fan are started, the pulsating vibrator enables the adjusting table to vibrate, and the situation that multiple materials are stacked and clamped between the adjusting table and the adjusting groove when the materials move between the adjusting table and the adjusting groove is avoided; and the fan conveys high-temperature gas in the expansion furnace into the annular pipe through the conveying pipe, then the high-temperature gas is sprayed out through the inclined spray head and blows the materials, normal falling of the materials is further guaranteed, meanwhile, the materials are preheated through the high-temperature gas, and the expansion efficiency of the vitrified micro bubbles is improved.

The invention relates to the technical field of tire simulation design, in particular to a rough pavement data expansion method and system for simulation analysis and a program product. According to the method, road surface morphology data are obtained through laser surface scanning equipment, equal-interval scanning is adopted, and scanning data are converted into a three-dimensional coordinate form. Then, expanding the data by utilizing a Python program, supporting expansion in multiple directions such as up, down, left and right, smoothly connecting the expanded data and the original data through reverse operation, and ensuring that the boundary of the expanded part and the original data is continuous and smooth; according to the method, multiple and infinite expansion can be realized, tedious manual splicing is not needed in the expansion process, and the expansion efficiency and precision are remarkably improved. The expanded data can generate a pavement model suitable for simulation analysis through grid division. According to the expansion method, the processing efficiency is greatly improved, the expansion boundary is smooth, high flexibility and adaptability are achieved, and the method is widely suitable for tire simulation analysis and surface data expansion in other engineering fields.

The invention relates to the technical field of bacterial liquid expanding culture, in particular to a bacterial liquid expanding culture reaction device which comprises an expanding culture tank as well as a material homogenizing mechanism, a material transferring mechanism and a filter pressing mechanism which are arranged in the expanding culture tank, the material transferring mechanism comprises a first liquid pumping assembly and a second liquid pumping assembly, the first liquid pumping assembly is arranged in the expanding culture tank and used for sequentially pumping the upper-layer expanding culture liquid from top to bottom, the second liquid pumping assembly is arranged at the bottom of the expanding culture tank and used for pumping the lower-layer expanding culture liquid, and the expanding culture liquid is pumped in a layered mode according to different height distribution of particle metabolites in the expanding culture liquid; the materials are quickly transferred; according to the invention, filtering methods with different fineness degrees can be adopted, spreading culture liquid is extracted while layering is carried out, the spreading culture liquid can be rapidly transferred, the residence time of the spreading culture liquid is reduced, the spreading culture efficiency of bacterial liquid is improved, and the technical problems of relatively large suction resistance and relatively low material transfer efficiency during spreading culture liquid transfer in the prior art are solved.

The invention relates to the technical field of model construction, is suitable for the financial field, and provides a sample expansion method, computer equipment and a computer readable storage medium, and the method comprises the steps: obtaining an expanded sample based on the information type of each sample content in a real sample; calculating the semantic similarity between the expansion sample embedding vector and a vector in a real data embedding index corresponding to the real sample; determining a structural consistency score based on the structured data in the expanded sample; determining semantic stability based on the output embedded representation of the extended sample in the plurality of models; determining the credibility of the expanded sample based on the semantic similarity, the structural consistency score, the semantic stability and the output result confidence of the current initial model; and if the credibility is greater than or equal to a preset credibility threshold, determining that the expanded sample is an effective sample. According to the scheme, training data is constructed for rare class services in a targeted manner, and more diversified reliable training samples are provided for a downstream service model.

The invention provides a connection pool management method and a related product. The management method comprises the following steps: in response to a client request, putting out-of-pool connection back to a connection pool, and judging whether a connection label of the out-of-pool connection carries a state mark or not; state marks are used for calibrating priorities of connection outside the pool; if yes, mapping a connection label of the out-of-pool connection to a Bloom filter, and mapping the connection label of the out-of-pool connection to an index based on a Hash algorithm; and putting the out-of-pool connections back to the stateful connection zone of the connection pool. According to the management method, invalid retrieval of the database system in the stateful connection pool can be avoided or reduced, and the effects of reducing the resource overhead of the system and improving the performance of the system are achieved.

The invention discloses a method, a system and equipment for realizing rapid capacity expansion and shrinkage of an NFV network element on a VI layer, and a storage medium. The method comprises the following steps: introducing a virtual machine longitudinal dynamic increase and decrease distribution technology to realize rapid capacity expansion and shrinkage of a network element virtual machine; virtual machines in the recycle bin are reused, and waste virtual machine resources are reused; and a virtual machine cloning technology is introduced to complete rapid expansion of the network element virtual machine. Compared with an existing virtual machine creating mode, the method has the advantage that the rapid expansion of the NFV network element can be realized on the VI layer through the combination of various strategies. According to the scheme of the invention, the initial configuration parameter quantity of the network element parameters can be reduced; by using the scheme of the invention, the time required for capacity expansion and contraction of the NFV network element can be optimized from a minute level to a second level.

The invention discloses a nitrogen-phosphorus flame-retardant epoxy resin curing agent, an epoxy resin prepreg and a carbon fiber composite material. The nitrogen-phosphorus flame-retardant epoxy resin curing agent contains benzene ring groups and nitrogen and phosphorus elements; by adopting the curing agent with a specific structure, the curing time of the epoxy resin at normal temperature is relatively long, the epoxy resin can be rapidly cured at high temperature, the operability time of preparing the carbon fiber composite material is prolonged, and nitrogen and phosphorus elements in the molecular structure of the curing agent can improve the flame retardant property of the epoxy resin; the prepared epoxy resin prepreg has high fire resistance.