169results about How to "Meet different application needs" patented technology

The invention provides a method and a system for realizing Openflow multi-stage flow tables on the basis of a ternary content addressable memory (TCAM). The method comprises the following steps of: S1, dividing a TCAM table maintained on an Openflow switch into multiple logical flow tables; and S2, setting the matched domain type for each logical flow table. The TCAM table is divided into multiple logical flow tables and the matched field length of each flow table comprises multiple forms, so that storage items of the TCAM table are effectively increased, different application requirements are met and the manufacturing cost of the Openflow switch is effectively reduced.

The invention discloses a method for preparing graphene oxide with high fluorescent quantum yield, which comprises the following steps of: oxidizing and ultrasonically peeling the graphite sheets serving as a starting raw material to obtain the graphene oxide; performing reflux reaction on the graphene oxide and thionyl chloride under the protection of nitrogen for 24 to 72 hours to obtain the intermediate chlorinated graphene oxide; and reacting the intermediate with excess alkylamine at the temperature of between 60 and 120 DEG C for 24 to 72 hours under the protection of the nitrogen to obtain the graphene oxide modified by the alkylamine. The product has strong blue fluorescent light with the fluorescence efficiency more than or equal to 10 percent, high biocompatibility and low cell toxicity, and can be widely applied to the biomarker and cell imaging.

The invention discloses a network traffic statistics implement method supporting multi-dimensional aggregation classification. The network traffic statistics implement method adopts a multi-level storage manner and a data format, is flexible to use, high in expandability, and low in storage occupation space, and can meet different application requirements. An original message is stored in a database, and original traffic is stored in a binary file, so that the requirements of storage and integrity of a large amount of data are met; a traffic linked list is stored in an internal storage, so that the data accessing speed of a user is improved, and multi-granularity traffic statistical analysis is supported. As a third-order HASH aggregation traffic linked list matrix is introduced, the traffic inquire and access speed is improved, and the user is helped to find query information quickly and rapidly. The network traffic statistics implement method is a multi-dimensional traffic aggregation classification algorithm, can be used for dynamic traffic analysis according to various divided time periods of an application, and also supports business traffic aggregation analysis based on the variation of groups organized by various applications of original-target addresses, so that multi-dimensional traffic aggregation classification statistical analysis of flexible combinations of five key words is realized.

The invention discloses a method for manufacturing a silicone micro-nano optical structure by using an imprinting technology. Firstly, a template serving as a seal during the imprinting is designed and processed according to the requirements of the structure of a device; secondly, an appropriate substrate material is selected and used according to the requirements of the micro-nano optical structure of the device, and then covered with imprinting glue; afterwards, structural patterns on the template are transferred to the imprinting glue by adopting an imprinting process, the imprinting glue is solidified and molded, the template is released after the template and the substrate are both cooled, and then a micro-nano optical structure with embossed figures is obtained; and finally, a polymeric optical bounding layer covers above imprinted lines according to the design of the device, and then the whole micro-nano optical structure is formed. By adopting the method, optical devices whichhave good weatherability and strong thermal stability and cause low loss can be prepared; and besides, the process is simple, so that the method has a cost advantage.

The invention relates to a preparation method of a TiBw / Ti-6Al-4V composite bar adopting a quasi-continuous reticular structure and solves problems that existing Ti-6Al-4V composites are harsh in technological condition, high in equipment requirement, low in production efficiency, difficult to produce on a large scale and the like. The method comprises steps as follows: low-energy ball milling and mixing are performed on spherical Ti-6Al-4V powder and TiB2 powder firstly; then TiB2 / Ti-6Al-4V mixed powder is placed in a metal sheath for cold press molding, and vacuum degassing and sheath sealing welding are performed to obtain an extrusion billet; finally, short-time pre-sintering is performed on the obtained extrusion billet, and hot extrusion deformation is performed on the pre-sintered extrusion billet to obtain a required material. The method can be applied to preparation of a TiBw / Ti-6Al-4V composite adopting the quasi-continuous reticular structure.

The invention discloses an automatic solid grain sorting system which comprises a grain queuing device for sequentially transferring the solid grains and transmitting single grains to a signal collecting area, a signal collecting device connected with the grain queuing device and used for collecting information of the solid grains in the signal collecting area, an information processing device which is used for carrying out information processing on solid grain information data collected by the signal collecting device to judge the attributes of the grains and sending the attribute signals to a grain sorting device, and the grain sorting device connected with the information processing device and used for acquiring the attribute signals and sorting the solid grains according to the attribute signals.

The invention provides controllable self-crosslinking sulfhydrylated hyaluronic acid-collagen composite hydrogel as well as a preparation method therefore. The composite hydrogel is prepared from hyaluronic acid hydrogel and I-type collagen or II-type collagen; the I-type collagen or II-type collagen is distributed in a three-dimensional crosslinking network structure. The composite hydrogel has rigidity and elasticity, is high in mechanical property, can promote spreading growth of cartilage cells, is favorable for phenotype maintaining for cells, can relieve the shortcomings that an existinggel material for cartilage reparation is easy to shrink and low in cell adhesion, and has an important application value in the field of cartilage injury reparation.

The invention discloses a time-setting clock system of a merging unit for realizing clock switching. A master clock and a slave clock are connected with the merging unit by a switch respectively; all electronic transducers are synchronized by sampling pulses and then upload sampling values to the merging unit; and the merging unit merges the data of the transducers of each phase and transmits themerged data to a protection, measurement and control unit device. The time-setting clock system is characterized in that: the merging unit comprises a merging unit central processing unit (CPU) and afield programmable gate array (FPGA) module connected with the merging unit CPU, wherein the FPGA module is connected with a time-keeping crystal oscillator. The invention provides an IEC61588-based synchronization method for the merging unit, provides switching methods for the merging unit under the condition of two master clock sources, endows the merging unit with the synchronization accuracy of a submicrosecond level, and ensures the seamless switching of the merging unit in a clock switching process.

The invention relates to a method for implementing distributed file systems on the basis of hierarchical storage. The method includes steps of 1), establishing the distributed file systems without metadata service for data in systems by the aid of global unified name spaces; 2), dividing the integral distributed file systems into different logical partitions according to business requirements; 3), selectively utilizing different storage media and storage modes for the different logical partitions; 4), automatically migrating data of the logical partitions and repositioning the migrated data. Compared with the prior art, the method has the advantages of complete data access parallelization, good performance, low hardware cost and the like.

The invention discloses a preparation method of an Al-Cu-Li-X series aluminum lithium alloy sheet. The sheet prepared by the method is 0.8mm-8.0mm in thickness. The method comprises the following steps: cogging and hot-rolling homogenized slab ingots to a specified thickness and coiling; carrying out annealing treatment, uncoiling and carrying out band-type cold-rolling; carrying out intermediate annealing according to deformation during cold-rolling, thus obtaining the sheets with uniform thicknesses. The sheets can be in different states after being subjected to solution treatment, prestretching and aging treatment, so as to meet different usage requirements. Compared with the prior art, the aluminum lithium alloy sheet with high surface quality, uniform sheet size and smooth sheet shape is prepared by the method through band-type cold-rolling. The sheets can be in different states by different heat-treating processes, so as to meet usage requirements under different application conditions.

The invention relates to a frequency-hopping transmission system based on a double-pattern fast synchronization method. The system can quickly and stable establish synchronization, initial synchronization is established quickly through a short period frequency-hopping pattern, and stable synchronization is kept through a long period frequency-hopping pattern. The system performs data processing through a base band module formed by a programmable logic device, i.e., packaging and depackaging of protocol frames, frequency-hopping pattern generation, system synchronization and system multi-parameter configuration, etc.; radio frequency characteristic processing is completed through software configuration of a radio frequency integrated chip, i.e., up / down-conversion, modulation and demodulation, low noise amplification and power amplification, etc.; system working parameters can be realized by configuring a base ban module and a radio frequency system according to application requirements; and a system working mode can be set as a fixed frequency or frequency hopping communication system according to communication requirements, convenient and flexible configuration can be performed through an upper computer interface. The double-pattern fast synchronization method enhances anti-interference performance of the system, shortens synchronization establishing time, and is good in confidentiality and strong in anti-interference capability and anti-interception capability.

The invention relates to a smart metering and meal selecting system comprising a smart tray with an RFID electronic label packaged at the center, a smart tray machine, a smart metering and meal selecting bench, a background data management platform, a self-service settlement service, and a palmtop computer. The smart tray machine is a memory tray; and according to the smart tray machine, a tray isobtained by a diner by swiping a meal-taking card, carrying out face identification and carrying out fingerprint recognition, and online verification of validity of the diner is carried out. The smart metering and meal selecting bench is used for placing dishes and carrying out intelligent heat thermal insulation on the dishes. The background data management platform is used for setting all information of the metering and meal selecting system at the background and carrying out summarization, calculation and analysis on the collected data. The self-service settlement service is used for realizing meal-taking settlement of the diner. The palmtop computer is used for pushing meal-taking consumption and nutrition information reports through a WeChat public number by combining the meal-takingdetails of the diner with nutrition intake and prompting information of all nutritional ingredients. According to the system provided by the invention, the diner information is communicated with binding information of a meal-taking background management system immediately after the diner obtains the tray; and the diner is guided intelligent to take meals properly by combining the nutrition intakesituation. Therefore, an effect of healthy diet management is realized.

The invention relates to a combined multifunctional node of a wireless sensor network module, which comprises a hardware architecture and a software architecture. The hardware architecture comprises a sensor, an analog-to-digital conversion unit, a board level controller, a memory and a wireless transceiving unit. The software architecture comprises a basic software layer for driving various pieces of hardware equipment, a communication interface and a sensor interface on the board level controller and providing the operating environment for software in the upper layer. A service and medium piece layer realizes various basic functions of the sensor network equipment by means of the basic elements provided by the basic software layer. An application software layer relies on various basic functions provided by the service and medium piece layer to integrate various sensing services. An equipment management module is used for providing the technical support for a platform with a three-layer system architecture consisting of the basic software layer, the service and medium piece layer and the application software layer. The invention realizes the standardized and modularized open platform and can solve the problem of rapidly developing the wireless sensor network under different application environments.

The invention provides a grooved Schottky device structure and a manufacturing method thereof. The grooved Schottky device comprises an N-type heavily-doped substrate, an N-type lightly-doped silicon epitaxial layer, at least two grooves, N-type highly-doped polycrystalline silicon layers, a metal silicide layer, a positive electrode and a negative electrode, wherein the N-type heavily-doped silicon epitaxial layer is formed on the substrate; the grooves are formed in the silicon epitaxial layer; a first silicon dioxide layer, a middle medium layer and a second silicon dioxide layer are formed in sequence on the surface of each groove; the N-type highly-doped polycrystalline silicon layers are filled into the grooves; the metal silicide layer is formed on the surface of the silicon epitaxial layer; the positive electrode is formed on the surface of the metal silicide layer; the back electrode is formed on the back surface of the N-type heavily-doped substrate. According to the grooved Schottky device structure, a first silicon dioxide layer / middle medium layer / second silicon dioxide layer compound structure is taken as a groove medium layer, so that the leakage current can be reduced remarkably, the requirement on the increase of the breakdown voltage and the reduction of the leakage current are met, a narrow groove structure can be adopted, the Schottky potential barrier contact area is increased, and the positive break-over voltage is lowered.

The invention relates to a method for preparing smooth dense silver-coated copper powder through a chemical plating method. The preparing method comprises the following steps that deionized water anda dispersing agent are added into activated copper powder to obtain a copper nano-particle suspension liquid; a complexing agent is added into a silver nitrate water solution to prepare a silver complexing solution; and the above solutions are mixed, a reducing agent solution and a nano-silver suspension liquid are sequentially added, stirring is carried out at room temperature to obtain a silver-coated copper nanoparticle suspension liquid, and standing, washing and drying are carried out to obtain the smooth dense silver-coated copper powder. Compared with the prior art, nano-silver particles are added into a plating solution, so that the obtained silver-coated copper powder is dense in coating, smooth and non-porous in surface, excellent in conductivity and oxidation resistance, and extremely high in application value in the electronic slurry industry.

The invention discloses antibacterial melt-blown cloth as well as a preparation method and application thereof, and belongs to the technical field of melt-blown cloth production. The antibacterial melt-blown cloth comprises a polypropylene layer. The polypropylene layer is prepared from the following raw materials in parts by mass: 70-90 parts of polypropylene, 5-15 parts of maleic anhydride grafted polypropylene and 15-35 parts of antibacterial master batches. The antibacterial master batches are obtained by mixing, cooling and cutting polypropylene, a silver-zinc phosphate glass material, graphene and an auxiliary agent; and the use amount of the silver-zinc phosphate glass material accounts for 0.5-1% of the total mass of the polypropylene layer, the use amount of the graphene accountsfor 2-8% of the total mass of the polypropylene layer, and the use amount of the auxiliary agent accounts for 0.1-5% of the total mass of the polypropylene layer. The melt-blown cloth has the advantages that the antibacterial property is effectively enhanced, and the lasting antibacterial effect is realized.

The invention relates to a multidimensional log system, comprising a multidimensional log data pool, a reader engine, a user reader, a system administrator reader, a maintainer reader, a developer reader and a custom reader, wherein, the reader engine reads multidimensional data from the multidimensional log data pool; the multidimensional data comprises a thread ID, a time stamp, classification,a grade, a user ID, a user IP, an information source and custom attributes; and the user reader, the system administrator reader, the maintainer reader, the developer reader and the custom reader areconnected with the reader engine. Compared with the prior art, the multidimensional log system has the advantages of more flexibility, less resource consumption, higher efficiency and the like.

The invention discloses a central switching and channel distribution method for an integrated service of a TDMA (Time Division Multiple Access) star network, relates to a method for implementing transmission of the integrated service under the condition of star networking of a TDMA satellite communication system, and aims to effectively solve the problem of concurrence and intercommunication between a central station and sub-stations as well as among sub-stations in the star network. According to the method, by using the central station to transmit and realize bidirectional service distribution, the intercommunication among services in the whole star network is realized, and aiming at real-time and non-real time services, flexible channel resource distribute is realized to further realize the distinct transmission service. The realization of the central switching and channel distribution method is mainly based on three major processes including service flow dividing and marking, bidirectional time slot applying and distributing, and service flow central forwarding. The method has the characteristics of simpleness in realization, flexibility in application, and certain service assurance capability, and is in particular applicable for the integrated service transmission process of the star networking of the TDMA satellite communication system.

The invention relates to an ignition gun for an industrial burner comprising a center pipe, an outer casing pipe, an igniting electrode, an insulation support and a transitional connector. On the insulation support, a center installation hole and an air flow hole are provided; the metallic pipe casing of the center pipe is connected with an igniting hi-pressure generator; the front end of the center pipe is provided with an igniting gun head nozzle block with a slant spraying hole; the metallic pipe wall of the outer casing pipe is provided with an entrance pipe for the combustion-supporting air; the center pipe is limited by the insulation support in the outer casing pipe. At operation, the metallic casing of the center pipe acts as a positive pole, the metallic casing of the outer casing pipe acts as a grounding negative pole, the inner of the center pipe is the channel for the gas fuel, and the space between the center pipe and the outer casing pipe is the channel for the combustion-supporting air; the gas fuel entered into the center pipe jets in a plurality of whiffs in dispersed way after passing the slant nozzles on the nozzle block; a discharging spark first fires one whiff and then the fired whiff ignites other whiffs to form a thick and long igniting torch. The invention is of simple and reasonable structure, works reliably and is of long service life, and is highly practical.

The invention provides a single-substrate millimeter wave radar system, and aims to provide a single-substrate radar system which has a high degree of integration and good versatility and enables high-frequency and low-frequency functional components to work simultaneously and compatibly. The technical scheme adopted is as follows: a millimeter wave transmitting antenna and a millimeter wave receiving antenna are integrated on the front side of a single substrate, and a millimeter wave radio-frequency front-end circuit and a signal processing circuit are integrated on the back side of the single substrate; the signal processing circuit sends a control signal to the millimeter wave radio-frequency front-end circuit, and the millimeter wave radio-frequency front-end circuit transmits a generated millimeter wave radio-frequency signal through the millimeter wave transmitting antenna according to the control signal; the millimeter wave receiving antenna feeds back the received millimeter wave radio-frequency signal to the millimeter wave radio-frequency front-end circuit; and the millimeter wave radio-frequency front-end circuit sends a processed intermediate-frequency signal to the signal processing circuit for fast Fourier transform FFT operation to get the radial distance and radial speed information of a target through calculation, and outputs target information detected by millimeter wave radar through an external interface circuit.

The invention provides a method for preparing zirconium dioxide nano powder by low-temperature calcination of zirconium sol. The method comprises the following steps: dissolving a raw material water-soluble zirconium inorganic salt in deionized water; adding an alkaline precipitant to generate a suspension, and centrifuging or filtering to obtain precipitate; adding mixed liquid of monobasic acid or monobasic acid and hydrogen peroxide into the precipitate, and continuously stirring for peptization to obtain a clear zirconium sol precursor; and finally, drying and dehydrating the zirconium sol precursor and calcining and decomposing in different temperature intervals, wherein amorphous zirconium dioxide nano powder as well as zirconium dioxide nano powder of which tetragonal phase can be kept stable without doping can be obtained, and the average particle size of the powder can be controlled between 3nm and 10nm. The preparation method of high-performance zirconium dioxide nano powder has the following advantages: the powder has small particle size, narrow distribution and good dispersity; the adopted raw material reagent is easily available and cheap; and the equipment requirements and operation technology are simple, the energy consumption is low, pollution is avoided, and industrial production is easy to realize.

The invention discloses a trapezoidal wave zone plate with a quasi-single-stage focusing characteristic. The trapezoidal wave zone plate comprises a light-proof substrate and a plurality of ring-shaped wave zones which are sequentially arranged from inside to outside by taking the substrate as a center, wherein each ring-shaped wave zone comprises at least two spiral trapezoidal hole light transmission units which are formed by twisting isosceles-trapezoid-shaped hole light transmission units, and are sequentially connected; the radial light transmittance of the wave zone plate meets a formula shown in the description. Compared with a common Fresnel wave zone plate, the trapezoidal wave zone plate can restrain the diffraction efficiency of a senior focus very well, also can reduce the peak strength of the senior focus. Moreover, when a ratio of the top edge of the original trapezoid to the bottom edge of the original trapezoid is equal to 1 to 5, the trapezoidal wave zone plate further has the effect of eliminating a 3n-level focus, and also restrains the efficiency of a 5-level focus to 0.16% of a 1-level focus (insulating efficiency being 6.93%). Compared with a Gabor wave zone plate, the 1-level focus efficiency is higher than the focusing efficiency of the Gabor wave zone plate, and the trapezoidal wave zone plate is easier to manufacture in comparison with a plurality of binaryzation Gabor wave zone plates.

The invention relates to a preparation method of an efficient and stable ultra-thin flexible terahertz shielding material. The preparation steps are as follows: firstly graphene is grown on the surface of a metal substrate by a chemical vapor deposition method; then a layer of transfer medium is coated on the metal substrate on which the graphene is grown; then the metal substrate is removed by anetching solution to leave the graphene supported by the transfer medium; then a layer of metal thin film is deposited on the polymer substrate; then the graphene supported by the transfer medium is transferred to the metal film deposited on the polymer substrate and the transfer medium supporting the graphene is removed; and then the steps of deposition of the metal thin film and transfer of thegraphene are alternately repeated so as to obtain a metal / graphene composite material assembled layer by layer. The metal / graphene layer-by-layer assembled terahertz shielding material has low thickness, high shielding efficiency, good flexibility and high stability and has broad prospects in the terahertz shielding field of microelectronic devices and flexible electronic equipment.

The invention relates to a method for preparing foamed ceramics by surfactant hydrophobic modification of a dispersant, comprising the following steps: (1) dispersing ceramic powder by the use of a polyelectrolyte dispersant so as to form water-based ceramic slurry, and controlling solid content of the water-based ceramic slurry to 30-60 vol.%; (2) adding a surfactant into the water-based ceramic slurry and carrying out hydrophobic modification on the polyelectrolyte dispersant by the use of the surfactant so as to obtain hydrophobically modified ceramic slurry; and (3) carrying out mechanical agitation and foaming on the hydrophobically modified ceramic slurry to obtain foam slurry, injecting into a mold, carrying out in-situ solidification on the foam slurry at room temperature, demoulding, drying and sintering to prepare the foamed ceramics. According to surface physicochemical characteristics of ceramic powder, a proper polyelectrolyte dispersant is selected; and the dispersant is adsorbed on the surface of particles so as to perform dual effects of steric hindrance and electrostatic repulsion.

The invention discloses a constant-current / constant-voltage DC-DC conversion system with an external adjustable current-limiting function. The system comprises an external adjustable current-limiting circuit, a current error amplifying circuit, a voltage error amplifying circuit, an oscillator, a slope current sampling circuit, a PWM generating circuit, a logical driving circuit and an output circuit. The system can have the external adjustable current-limiting function due to the external adjustable current-limiting circuit, the current-limiting threshold value of the system can be accurately adjusted, the flexibility of application of the system is improved, a large current can be prevented from being generated in the no-load process of the system, and the normal operation of the circuits of the system can be effectively protected. The constant-current / constant-voltage DC-DC conversion system with the external adjustable current-limiting function is simple in structure, saves the area of chips, and is suitable for power supply chips with the accurate current-limiting requirements.

The invention provides a dual mode luminous rare earth doped cerium fluoride nano crystal, a preparation method thereof and a surface modification method thereof. The rare earth doped cerium fluoride nano crystal has a chemical composition formula, namely Ce0.74F3:0.2Yb / xTm / (0.06-x)Tb, wherein x=0.01-0.05. The crystal can realize dual mode luminescence of up-conversion excitation and down-conversion excitation under conditions such as ultraviolet light and a 980nm infrared laser. In addition, the method can prepare the rare earth doped cerium fluoride nano crystal having different structural shapes by controlling technological conditions. Moreover, the surface of the prepared doped cerium fluoride nano crystal can be modified by a surfactant so as to meet various requirements in the technical fields of anti-counterfeiting, biological marking and the like.

The invention provides a lithium battery pack short-circuit protection circuit comprising a short-circuit protection current reference circuit which acquires reference current, a short-circuit current acquisition circuit which acquires short-circuit current, a current comparison circuit, an MCU circuit, a charging execution circuit and a discharge execution circuit. The current comparison circuit is a comparator. The short-circuit current acquisition circuit acquires real-time current from a lithium battery pack and transmits real-time current to the positive phase input end of the comparator. The short-circuit protection current reference circuit acquires reference current from the MCU and transmits reference current to the negative phase input end of the comparator. The output end of the comparator is connected with the high-priority external interruption input pin of the MCU. A short-circuit protection current size threshold and a short-circuit protection delay time threshold are arranged in the MCU. Short-circuit misoperation in electrification of a capacitive load can be effectively avoided, and a complex and tedious short-circuit protection execution unit is removed simultaneously so that materials are reduced and cost is reduced.

The invention discloses a vehicle-mounted terminal system based on a cloud platform. The vehicle-mounted terminal system is characterized by comprising a vehicle-mounted terminal body and being implemented according to a working principle and a communication specification of a vehicle terminal system based on a cloud platform and a communication and control method among the vehicle-mounted terminal, the cloud platform, a vehicle controller, and a mobile device. The vehicle-mounted terminal includes a control module, a positioning module, a communication module, a network module, a video acquisition module, and a power supply module; the vehicle-mounted terminal carries out communication and data transmission with the cloud platform to realize remote monitoring; and the vehicle-mounted terminal carries out communication and data transmission with the vehicle controller by the network module to realize remote controlling of the vehicle. The vehicle-mounted terminal based on the cloud platform serving as a vehicle networking and dispatching control part is used for realizing all-round vehicle monitoring and management as well as vehicle positioning, remote monitoring and operation control, and data acquisition. On the basis of a three-dimensional network system established by the vehicle-mounted terminal, the mobile terminal and the cloud platform, effective docking of vehicle resources and application demands is realized, personalized application services can be provided for users; the requirement of the national transportation energy strategic transformation is met; and theinevitable tendency of transformation and upgrading development of the public transportation industry is promoted.

The invention discloses a cationic reactive Gemini polyurethane surfactant and a preparation method thereof and belongs to the technical field of fine chemicals. The cationic reactive Gemini polyurethane surfactant is obtained by enabling excess diisocyanate to sequentially react with fatty amine polyoxyethylene ether and a chain extender, further adding a blocking agent to block remaining isocyanate groups, then neutralizing and dispersing in water. A series of surfactants with different performances, uses and unblocking temperatures can be obtained by selecting the types of fatty amine polyoxyethylene ether, the chain extender and the blocking agent. The cationic reactive Gemini polyurethane surfactant disclosed by the invention can solve the problem that the traditional surfactant is easy to migrate and precipitate on the one hand, and improve the compatibility of the cationic reactive Gemini polyurethane surfactant and the traditional surfactant, as well as water resistance, dielectricity, optical transparency and other performances on the other hand; furthermore, the cationic reactive Gemini polyurethane surfactant can realize the effects of strengthening, toughening, reducing surface tension and the like for a matrix, and shows broad application prospects in the fields of preparation of polymer emulsions, finishing of leather and synthetic leather, textile coating and the like.