161results about How to "Reduce negative impact" patented technology

The invention relates to a two-chamber low-pressure casting holding furnace and a low-pressure casting method. The two-chamber low-pressure casting holding furnace comprises a heat preservation chamber, a low-pressure casting chamber, a communicating cavity, a liquid rising pipe, a first air inlet pipe and a liquid opening, wherein the heat preservation chamber comprises a precipitation cavity and a confluence cavity; and the communicating cavity comprises a liquid inlet section, a transition section and a liquid outlet section. Compared with the prior art, the heat preservation chamber of the holding furnace is directly communicated with the low-pressure casting chamber, an intermediate valve is omitted, and the pressure bearing capacity of the holding furnace is greatly improved; and large pressure can be generated by arranging a second air inlet pipe and enabling the second air inlet pipe to be matched with the first air inlet pipe, so that the overall working performance of the holding furnace is improved in a spanning manner, the holding furnace can be used for producing thin structural parts, such as automobile chassis parts, A columns and B columns, with larger projection areas, and the practicability of the holding furnace is greatly improved.

The invention relates to the technical field of multi-view clustering analysis, and discloses an incomplete multi-view clustering method and system, a storage medium and equipment. In order to solve the problems that a small amount of easy-to-obtain supervision information is not utilized in an existing method, and the clustering performance is deteriorated due to low view interpolation quality under high missing degree, the invention provides a technical scheme of combining paired constraint weighted interpolation and double-level feature fusion. The method comprises the following steps: firstly, screening similar samples by using pairwise constraint information, and reconstructing a missing view through similarity weighting; then extracting feature mean values and standard deviations of all views based on an encoder, aligning features through view hierarchy self-adaptive comparison learning and reserving private information, and optimizing feature distribution in combination with sample hierarchy semi-supervised loss; and finally, completing clustering through a Gaussian mixture model. According to the method, the pairwise constraint information is effectively utilized, the view recovery quality and the feature complementarity under the high-missing scene are improved, the clustering performance is remarkably improved, and the method is suitable for scenes such as data analysis of multi-view data missing and the like.

The invention belongs to the technical field of synthesis of 2, 3-dipicolinic acid, and relates to a catalyst for synthesizing 2, 3-dipicolinic acid as well as a preparation method and application thereof, the catalyst is prepared from a carrier, and active components and auxiliaries loaded on the carrier; the carrier is boron nitride modified aluminum oxide, the active component is palladium-cobalt bimetal, and the auxiliary agent is magnesium; the catalyst comprises the following components in percentage by mass: 0.2 wt%-3wt% of palladium, 0.5 wt%-4wt% of cobalt, 0.05 wt%-0.3 wt% of magnesium, 5wt%-15wt% of boron nitride and the balance of an aluminum oxide carrier. The catalyst is prepared by adopting an ultrasonic-assisted sol-gel method, so that high dispersion and strong interaction of active components are realized. The catalyst shows high catalytic activity, high selectivity and excellent stability in a dichloropyridine carbonylation reaction, carbon monoxide is used as a carbonyl source, the atom economy is high, and the green chemical requirement is met.

The application discloses a missing modal learning method based on counterfactual diffusion and causal evidence fusion, and belongs to the field of computer vision and multi-modal learning. The method comprises the following steps: acquiring a multi-modal sample data set, defining a modal observation indicator for each multi-modal sample, dividing the modal data of each multi-modal sample into an available modal subset and a missing modal subset according to the modal observation indicator; constructing a causal diffusion generation module, inputting the available modal subset and the missing modal subset of the multi-modal sample into the causal diffusion generation module, and generating missing modal reconstruction features; constructing an evidence weighted causal fusion module, inputting the available modal alignment features and the missing modal reconstruction features into the evidence weighted causal fusion module, and outputting class prediction probability; constructing a counterfactual robust learning module, and performing joint optimization to obtain the trained causal diffusion generation module and the evidence weighted causal fusion module, which are used for inference prediction. The application has obvious advantages under high missing rate of modal.

This invention discloses an intelligent directional closed-loop control method and system for a curved-shell screw drill string assembly. The method includes intelligent switching control of sliding / compound drilling modes and intelligent tool face control. The intelligent switching control of sliding / compound drilling modes uses a single drill string or column as the controlled object, intelligently designing the sliding / compound drilling length of the single drill string or column to be drilled and the switching scheme between the two, which is executed by an automated actuator to achieve intelligent switching between sliding / compound drilling. The intelligent tool face control includes changing the drill pressure control tool face and the wellhead rotary drill string control tool face. Before tool face control, the tool face control parameters are intelligently designed and executed by an automated actuator to achieve intelligent closed-loop control of the tool face. This invention can avoid the large amount of non-drilling time consumed by repeated adjustments, improving drilling efficiency.

This application relates to an impedance measurement system and method for a new energy grid-connected system, comprising: a first measuring device, a second measuring device, a third measuring device, and a control device; the control device is connected to the first, second, and third measuring devices; the fifth terminal of the first measuring device outputs the disturbance current of the first phase; the fifth terminal of the second measuring device outputs the disturbance current of the second phase; and the fifth terminal of the third measuring device outputs the disturbance current of the third phase. The control device is used to determine the impedance of the new energy grid-connected system and control the operation of the first, second, and third measuring devices based on the disturbance currents of the first, second, and third phases, the grid voltage of the first phase, the grid voltage of the second phase, and the grid voltage of the third phase. This method can improve the measurement effect and reliability of the impedance of the new energy grid-connected system.

The present application relates to the technical field of pesticides, in particular to a kind of pesticide composition, preparation, use and method, the pesticide composition includes the active ingredient A and active ingredient B with mass ratio of 1: (10-50), the active ingredient A is p-chlorophenoxyacetic acid or its agronomically acceptable salt, the active ingredient B is ethylene.The present application is by p-chlorophenoxyacetic acid (or its salt) and ethylene is compounded according to specific proportion with specific application concentration is applied, reaches the effect of controlling vigorous, inhibiting ear germination and increasing yield, alleviates the negative influence of growth inhibition to root system and young ear development caused by ethylene as the vigorous controller is used and the side effect of early decline and yield reduction caused by as ear germination inhibitor is used;Meanwhile, the pesticide preparation provided by the present application is soluble concentrate, and has high efficacy, strong penetration, convenient use, good safety, and the active ingredient is not easy to decompose, and the physical and chemical properties are stable.

The utility model relates to the technical field of wearable equipment, in particular to an intelligent host and wearable equipment. The intelligent host comprises a housing; the health monitoring module is arranged in the machine shell, and the monitoring end of the health monitoring module faces the near-skin side of the machine shell; the card support assembly is arranged in the machine shell and located on the far-skin side of the health monitoring module; the charging part is arranged on the side face of the machine shell, and the charging part is used for charging the intelligent host. The accuracy of monitoring the human body health index by the health monitoring module can be improved; and the charging part is arranged on the side surface of the shell, so that the charging part can be farther away from the health monitoring module, the negative influence of an electromagnetic field and heat generated by the charging part during charging on the health monitoring module can be reduced, and the service life of the health monitoring module is prolonged.

The application provides a regeneration method of halogenated nitrobenzene continuous hydrogenation catalyst, and relates to the technical field of fixed bed halogenated nitrobenzene hydrogenation. The regeneration method mainly comprises the following steps: using alcohol, alkali, petroleum ether and ethyl acetate to preliminarily clean the bed layer, removing azo compounds and other pollutants on the surface of the catalyst by using the special properties of ionic liquids, and then completing the regeneration of the catalyst through the steps of pickling, precious metal solution treatment and drying. The application overcomes the defects of the prior art, has the advantages of simple operation, mild conditions and low cost, realizes the in-situ removal of surface impurities such as reaction intermediates and azo compounds on the catalyst surface without damaging the structure of the catalyst and disassembling the catalyst, further supplements the lost metal active components, and can effectively restore the catalyst activity.

The utility model discloses an acid mist collecting cover which comprises a first plate body, a second plate body and a baffle, the baffle is arranged along the outer periphery of the first plate body and is perpendicular to the first plate body, and the end, back on to the first plate body, of the baffle is connected with the second plate body; the baffle is provided with an opening, and the second plate body is provided with an exhaust opening matched with the exhaust pipe. And connecting plates are arranged at the ends, close to the opening, of the first plate body and the second plate body. A cavity is defined by the first plate body, the second plate body and the baffle, a closed environment can be formed at a target position, dissipation of acid mist is avoided, a reinforcing plate is arranged in the cavity, the durability of the collecting cover is improved, during working, an exhaust fan extracts the acid mist gathered in the cavity, and the acid mist is prevented from being dissipated. The method plays an important role in reducing formation of acid mist points during foil generation and improving the safety degree of the working environment of workers; and meanwhile, the collecting cover can play a role in shielding and protecting the positions of the anode groove and the cathode roller.

The invention relates to the technical field of bactericides for crops, in particular to a bacillus cereus-containing bactericidal composition and application thereof in prevention and control of camellia oleifera anthracnose. The active ingredients of the bactericidal composition comprise bacillus cereus WR-12 and diflumetofen sulfanilamide. According to the bactericidal composition, the synergistic bactericidal effect is enhanced by compounding a biological fungicide and a chemical fungicide, the development of drug resistance of pathogenic bacteria is delayed, the negative influence of chemical pesticides on the environment is reduced, green and efficient prevention and control of camellia oleifera anthracnose are achieved, and sustainable development of the camellia oleifera industry is promoted.

This invention discloses a method and system for protecting privacy in wearable devices for human activity recognition, aiming to solve the problems of existing methods struggling to balance privacy and utility, and high resource consumption on the edge. The method first acquires multi-channel time-series signals from the wearable device and constructs fixed-length feature vectors. Based on a sensitive attribute inference model and the number of high-risk features, it divides the device into high-risk and low-risk feature sets. Only the high-risk feature sub-vectors are subjected to perturbation noise to generate perturbation latent representations, which are then uploaded to an edge server along with the low-risk feature set. The edge server generates the final feature vectors and assesses the risk of privacy leakage. An offline evaluation is used to construct a privacy-utility trade-off, dynamically adjusting the perturbation dimension and noise amplitude. This invention achieves targeted protection of high-risk features, maximizing the preservation of key recognition information, reducing edge computing power and communication overhead, adapting to the differentiated needs of different scenarios, and balancing privacy security and activity recognition performance.

The invention discloses a heat treatment method of high-polarization-intensity bismuth ferrite-lead titanate-barium zirconate titanate based ferroelectric ceramic, which comprises the following steps: arranging an electrode on the surface of a bismuth ferrite-lead titanate-barium zirconate titanate based ferroelectric ceramic sintered body, and then putting the sintered body into a rapid annealing furnace; the preparation method comprises the following steps: heating to 550-650 DEG C from room temperature at a heating rate of 5-80 DEG C / s, carrying out heat preservation for 45-75 seconds, carrying out first rapid annealing, and cooling to room temperature at a cooling rate of 250-350 DEG C / s, thereby obtaining the bismuth ferrite-lead titanate-barium zirconate titanate based ferroelectric ceramic. The heat treatment method provided by the invention can rearrange defects in the ceramic, increase domain conversion switches, improve the performance of the ceramic, and improve the performance of the ceramic. Furthermore, the ferroelectric piezoelectric property of the polarized BF-PT-BZT ceramic is greatly improved, and meanwhile, the polarized BF-PT-BZT ceramic has high Curie temperature.

A kind of aluminum electrolysis MES system real-time interface data exception feedback and dynamic re-push method, it is related to aluminum electrolysis production informatization management technical field, including steps S1, set interface data exception data rule, according to the abnormal data rule to the real-time monitoring and abnormal perception of multi-source interface data;Step S2, set exception data level, according to exception data level, MES system receives exception data and carries out hierarchical feedback;Step S3, according to the server state exception interface data dynamic re-push condition setting, MES system according to the server load state dynamically re-pushes exception data to external system etc..The present application makes up the problem that existing aluminum electrolysis MES system and external system exist in interface data interaction process in the production process, and exception feedback lag and re-push mechanism rigidification, ensure the accuracy and reliability of interface data.

This invention discloses a method for reusing negative electrode graphite from waste lithium batteries, comprising the following steps: stripping graphite from the current collector to obtain waste graphite; mixing and grinding the waste graphite, sublimed sulfur, and red phosphorus to obtain a mixed powder; placing the mixed powder in an inert gas atmosphere and rapidly burning it in a rapid-burning device for a period of time, followed by cooling, to obtain recycled graphite. The invention also discloses the preparation and application of this recycled graphite. This invention is applicable to the field of lithium battery recycling technology. Rapid burning effectively removes impurity elements from the negative electrode graphite in waste lithium batteries, helping to reduce the negative impact of these impurities on the performance of the negative electrode graphite; subsequently, through the grinding reaction with sublimed sulfur and red phosphorus, C-S-P bonds are formed, improving the conductivity and rate performance of the graphite, thereby enhancing the capacity and cycle performance of the obtained recycled graphite.

The application provides a wine aging method, and belongs to the technical field of wine brewing, which comprises the following steps: adjusting the sulfur content of separated base wine to obtain base wine with adjusted sulfur content; sterilizing oak barrels by steam fumigation; filling the base wine with adjusted sulfur content into the sterilized oak barrels to obtain full oak barrels; aging the full oak barrels, the humidity of the aging environment is 65RH%-75RH%, and the temperature of the aging is adjusted according to the season, and the full oak barrels are regularly adjusted in sulfur content during the aging process. The wine aging method provided by the application can regularly adjust the sulfur content of the wine liquid once every 28 days during the aging process, accurately supplement the content of key components in the wine liquid which is reduced due to natural consumption, and avoid the concentration of the components being lower than the appropriate interval of aging.

The invention aims to provide a wide-range methanol / diesel oil dual-fuel injector with high injection stability, and belongs to the field of engines. A methanol injection control multi-way electromagnetic valve assembly is installed in the diesel oil connector body, a diesel oil injection control electromagnetic valve assembly is installed in the injector intermediate body, an oil way stop valve assembly is installed in the cone valve body, multi-position nested needle valve assemblies are installed in the inner needle valve intermediate body and the nozzle body, and a high-pressure methanol connector is installed on the side of the methanol connector body. A high-pressure diesel connector is installed on the side of the diesel connector body. According to the methanol / diesel oil dual-fuel independent injection system, methanol / diesel oil dual-fuel independent injection can be achieved, the methanol injection working condition range can be remarkably widened, the injector needle valve response characteristic is improved, the oil return amount is reduced, and then the methanol injection stability is improved; and various injection modes such as methanol micro-injection, diesel injection and methanol large-flow shoe-shaped injection can be realized.

The present invention relates to the medical and food use of bile acid derivatives. Specifically, the present invention relates to the use of 3-oxoLCA in reducing oxidative stress and inflammation in pregnant mothers and their offspring. Specifically, the present invention relates to the use of 3-oxoLCA to reverse the effects of oxidative stress on pregnant mothers, in particular, to maintain fetal equal weight, significantly reduce placental and liver oxidative stress in pregnant mothers and the resulting inflammation or dysfunction of the placenta and liver, and to improve the intestinal flora imbalance of pregnant mothers. Further studies have found that 3-oxoLCA has long-term effects, in particular, can significantly reduce the effects of oxidative stress during pregnancy on oxidative stress and inflammation in the liver of offspring.

The invention relates to the technical field of artificial intelligence, is applied to smart medical and financial scenes, and discloses a cluster security monitoring method, device, equipment and medium, and the method comprises the steps: creating a daemon set and associating the daemon set to an HIDS client container, and creating a copy of a corresponding Pod; creating a first deployment and associating the first deployment to a container of a callback server, creating a plurality of copies of Pod for running the same callback server process, creating a callback service and associating the callback service to the callback server; establishing and verifying dynamic admission controller configuration, and appointing a receiving end of a forwarding request and a resource type and an operation type of the request needing to be forwarded; the HTTPS service is started, the report service is created, the forwarded request is detected through the callback server, the request is forwarded to the HIDS server side through the HIDS client side, and the request is detected; and creating a second deployment and associating the second deployment to the probe container, sending an HTTPS request to the callback service and the report service according to a preset period, and judging whether the callback service and the report service are available or not.

The present application relates to neutron dosimetry method, specifically provide a kind of for boron neutron capture therapy fast neutron dosimetry method, by using the paired ionization chamber test system with different liquid environment, one kind of liquid environment has obvious absorption to thermal neutron, then the radiation source under the same power is measured, to obtain more accurate fast neutron dose and the rest two kinds of mixed radiation dose, to solve the problem of inaccurate neutron dose test of different kinds in the prior art in the application process of mixed radiation field, more accurate mixed radiation quantity value can be obtained, so that the different types of neutron dose in mixed radiation field are grasped, so as to improve the radiation effect in the application scene of mixed radiation field.

This application provides one or more embodiments of a model compression method, apparatus, device, and storage medium. The method includes: inputting descriptive information corresponding to at least one private data sample into a first large language model; using the descriptive information as a generation condition to generate at least one generated data sample corresponding to the descriptive information; selecting generated data samples similar to the at least one private data sample from the at least one generated data sample; performing model compression on a pre-trained second large language model based on the selected generated data samples to obtain a compressed model corresponding to the second large language model; wherein the second large language model is pre-trained based on public data samples; and fine-tuning the compressed model based on the private data samples to complete the compression processing for the second large language model.

The application discloses a kind of waste tire geotechnical structure and its benzene permeation prevention processing method, processing method includes the following steps: waste mask disinfection treatment;ZnCl2 is dissolved in HCl, preprocessed activated carbon is added, after oscillation stirring, make ZnCl2 solution enter into activated carbon, dry to constant weight, with nitrogen at 850~900 ℃, activated carbon is activated, and ZnCl2 modified activated carbon is obtained;Multiple waste masks are tied together, and ZnCl2 modified activated carbon is wrapped between adjacent waste masks;Fixed on geogrid, the outer layer non-woven fabric of waste mask is towards waste tire, the inner layer non-woven fabric is towards geogrid, and ZnCl2 modified activated carbon is rolled on the tread pattern groove of waste tire;The bottom end of geogrid is fixed with lock catch.The application effectively solves the potential harm generated when waste tire is applied to geotechnical application, expands the application field of waste tire, and reduces the pollution generated when waste tire is used in soil.

The invention discloses a modified organic silicon defoaming agent as well as a preparation method and application thereof, and belongs to the field of papermaking defoaming agents. The preparation method comprises the following steps: firstly, carrying out addition reaction on hydrogen-containing silicone oil, alkyne and enol to obtain an alkyne modified organic silicon defoaming agent intermediate; performing high-temperature phase inversion emulsification on the alkyne modified organic silicon defoaming agent, docosanol, octadecanol and an emulsifier to obtain the alkyne modified organic silicon defoaming agent. The modified organic silicon defoaming agent obtained by the preparation method disclosed by the invention is applied to a papermaking section, not only can quickly eliminate foams on the surface of a system, but also can remove small bubbles attached to the surfaces of fine fibers in pulp, so that the gas content of a paper machine system is reduced, the operation efficiency of a paper machine is improved, and the modified organic silicon defoaming agent has the characteristics of no toxicity, no harm, simple process and the like.

The invention relates to the technical field of agricultural plant protection, in particular to a biological control and management method for asparagus diseases and insect pests, which comprises the following steps: S1, soil pretreatment and construction of a beneficial microorganism matrix; s2, pest population dynamic monitoring and natural enemy release; s3, application of the botanical attractant; s4, field application of the biocontrol inoculant; s5, ecological weeding management: in the growth period, controlling the height of worst weeds and keeping low flowering weeds at the same time; s6, harvesting period management: tools are disinfected during harvesting, tender stems are smoothly cut by a special harvesting knife, and residual and broken tender stems are cleaned in time; wherein the steps S1 to S6 form a complete management period and need to be circularly and repeatedly implemented, and the steps S2 to S5 are dynamically executed according to field monitoring conditions. The growth of asparagus root systems is effectively promoted through measures such as a compound microbial agent and ecological weeding management, and adverse effects on asparagus growth are reduced by controlling weeds and plant diseases and insect pests.

This invention relates to the technical field of cast-in-place piles and discloses a method for constructing a grouting and solidifying mud skin on the side of a cast-in-place pile, comprising the following construction steps: 1) After the cast-in-place pile is cast, it contains a reinforcing cage and has a soil layer on the side of the pile. Multiple annular grouting pipes are provided on the reinforcing cage, spaced apart along the axial direction of the reinforcing cage, and each annular grouting pipe has multiple circumferential grouting ports. Each annular grouting pipe is connected to a vertical grouting pipe, and a grouting port is formed at the top of the vertical grouting pipe. Within 7-8 hours after the cast-in-place pile is cast, the multiple vertical grouting pipes and the multiple annular grouting pipes are unplugged; 2) 48 hours after the cast-in-place pile is cast, grout is sequentially injected into the multiple annular grouting pipes through the vertical grouting pipes in a top-to-bottom direction. The grout enters between the outer periphery of the cast-in-place pile and the soil on the side of the pile, mixing with the mud skin on the outer periphery of the cast-in-place pile. After the grout hardens, the mud skin on the outer periphery of the cast-in-place pile is solidified.

The application belongs to the technical field of building integrated photovoltaics, and discloses a building photovoltaic integrated space deployment method under the double constraints of vision and performance. The application uses grid division and target point selection technology to screen photovoltaic deployment building surfaces. This method can make the layout of photovoltaic components more scientific and reasonable, avoid the problem of improper building surface selection caused by only relying on illumination conditions or simple experience judgment in traditional methods, and ensure that the photovoltaic system can maximize the reception of solar energy. At the same time, a dynamic shadow blocking calculation method is adopted, the blocking effect of the surrounding environment is considered, and the photovoltaic potential of the building surface is fully evaluated and tapped. Through a multi-objective optimization method, the power generation performance and visual impact of the photovoltaic system are comprehensively considered to find the best balance point. This not only guarantees the efficient operation of the photovoltaic system, but also reduces its negative impact on the visual environment, and improves the scientificity and practicality of the installation scheme.

This invention provides a low-temperature resistant energy storage battery for new energy vehicles, comprising a base housing as the basic installation structure; a bottom protective module that adapts to low-temperature heating and high-temperature heat dissipation requirements via a heating plate; a battery support tray that supports the battery module and guides airflow circulation via a support panel and battery enclosure frame; and a heat exchange module that uses a flow divider and elastic clamping components to achieve airflow distribution and heating plate positioning, ensuring uniform thermal management. This invention balances the temperature difference between the center and sides of the battery module through a flow divider design with a large airflow on the outside and a small airflow on the inside, ensuring uniform temperature distribution throughout the battery module. This achieves temperature consistency during charging and discharging, reduces the negative impact of localized overheating or overcooling on battery performance, and extends battery life.

The application relates to the technical field of ion exchange equipment and specifically discloses a device and method for removing air bubbles in an ion exchange column, which comprises a shell, multiple groups of ion exchange components and multiple gas-liquid separation pieces, the multiple groups of ion exchange components are arranged in the shell and are spaced apart along the axial direction of the shell, the gas-liquid separation pieces correspond to the ion exchange components one by one, each gas-liquid separation piece is arranged on the side of the ion exchange component close to a discharge port, the gas-liquid separation piece is umbrella-shaped, a separation cavity is formed between the gas-liquid separation piece and the ion exchange component, the top of the gas-liquid separation piece is connected with an exhaust pipe, the exhaust pipe extends to the outside of the shell, the gas-liquid separation piece comprises a body and a flow blocking part, the body is connected with the flow blocking part, a flow hole is formed in the body and is used for passing fluid, the normal projection of the flow blocking part on the body covers the flow hole, so that the gas phase can rise along the flow blocking part to the exhaust pipe and be discharged. The application can efficiently remove the air bubbles generated in the ion exchange process.

This utility model discloses an electronic atomizer, including a liquid storage tank, an atomizing component, a mouthpiece, a sealing element, and an elastic element. The liquid storage tank has a liquid storage chamber. The atomizing component includes a support and an atomizing module. The support has an atomizing chamber, and the atomizing module is disposed in the atomizing chamber. The mouthpiece communicates with the atomizing chamber. The elastic element is disposed between the liquid storage tank and the support, and the sealing element is disposed between the elastic element and the support. The mouthpiece has a first installation position and a second installation position relative to the liquid storage tank. When the mouthpiece is in the first installation position, the sealing element is blocked between the liquid storage chamber and the atomizing chamber by the elastic force of the elastic element, so that the atomizing component is in an inactive position. When the mouthpiece moves from the first installation position to the second installation position, the mouthpiece drives the support to move, driving the sealing element to a position that does not block the liquid storage chamber and the atomizing chamber, so that the atomizing component is in an active position. This application mainly solves the problem of how to prevent the liquid to be atomized from flowing into the atomizing chamber when the electronic atomizer is not in use.

This invention discloses an infrared camouflage composite yarn, its preparation method, and its application. The preparation process involves first preparing a preform, then dispersing aluminum powder and tin-doped indium oxide powder on a softened film to form an infrared-resistant film. The infrared-resistant film is then coated onto the preform using a layered structure design to prepare a composite preform. Combined with heat treatment, the yarn is then hot-stretched to obtain the improved infrared camouflage composite yarn. The infrared camouflage composite yarn prepared by this invention not only possesses excellent infrared camouflage capability and durability, but the addition of functional particles does not significantly affect the yarn's mechanical properties, such as breaking strength. The functional particles maintain uniform dispersion, improving the uniformity of infrared camouflage performance. This method is suitable for preparing infrared camouflage products, such as military jackets, tents, and backpacks.