152results about How to "Overcome compatibility" patented technology

The invention discloses a game testing method for mobile devices. The method comprises the steps that a testing request sent by a user is received by means of a plurality of Web interfaces, one or more slave nodes are selected, using states of all the mobile devices connected with the slave nodes are detected, and a testing task is distributed to the one or more spare mobile devices to be executed; a testing file uploaded by the user is received, and the slave nodes are used for distributing testing cases corresponding to the testing file and the testing request to the mobile devices synchronously; the mobile devices are controlled to install and start game software, and system files of the mobile devices are read in real time in the running process of the game software to obtain performance parameters; the performance parameters are analyzed to generate a test result, and the test result is stored in a database connected with the Web interfaces. The invention further provides a game testing system for the mobile devices. The method and the system have the advantages that a PC and the mobile devices are dispatched conveniently, and the testing efficiency and reliability are high.

The invention discloses a multiple electric appliance type-supportable high-precision NILM (Non-intrusive Load Monitoring) realization method, so as to recognize multiple types of load electric appliances in the NILM system and achieve the purposes of expanding the compatibility breadth of the system and improving the precision. The method comprises steps: data are acquired; the system prepares training data according to a selected load electric appliance; the system uses a specific architecture based on a deep neural network to complete training and modeling on the type of the load electric appliance; and the system completes the load electric appliance recognition process through the well-trained architecture. A complete training data set is selected, and good performance is achieved inthe modeling of electric appliances; in consideration of the compatibility of recognition of most electric appliances, the recognition performance of a two-state electric appliance is enhanced; and the method can be promoted to be used in a system in no need of high-end hardware to acquire data.

The antifouling paint is prepared with core-shell type fluorous acrylate emulsion as base material, heavy CaCO3 stuffing, pigment, densifier, dispersant, glycol filming assistant, lubricant, leveling agent, preservative, defoaming agent, deionized water and ammonia water. Its preparation process includes semi-continuous polymerization to synthesize core-shell fluorous emulsion, mixing the emulsion with filming assistant, mixing with other components and filtering. The antifouling paint has low surface energy and indexes meeting the requirement for environment protection, and is soluble in common organic solvent.

The invention discloses water borne epoxy intermediate paint. The intermediate paint comprises a component A and a component B, and the weight ratio of the component A to the component B is between 0.5 and 10, wherein the component A comprises the following ingredients in percentage by weight: 23-55 percent of water borne epoxy resin curing agent, 0.1-1 percent of wetting dispersant, 1-5 percent of antirust pigment, 5-10 percent of tinting pigment, 1-5 percent of filler, 1-2 percent of film forming auxiliary, 0.1-1 percent of defoaming agent, 0.1-0.5 percent of flatting agent, 0.01-0.5 percent of antiseptic, 0.5-2 percent of rust inhibitor, 0.01-0.1 percent of rheology modifier and 36.09-49.9 percent of softened water; and the component B comprises the following ingredients in percentage by weight: 10-30 percent of self-emulsified water borne epoxy resin and 70-90 percent of softened water. By compounding a self-emulsified epoxy resin emulsion and a self-emulsified water borne epoxy resin curing agent, the mechanical performance and the salt mist resistance of the paint can be improved, and the environmentally friendly requirement can be fulfilled.

The invention provides a low-cost and high-performance glass fiber reinforced nylon 6 composite material and a preparation method thereof. The composite material comprises the following components in percentage by weight: 57%-82.5% of nylon 6, 3%-20% of compatibilizing and toughening agents, 3%-12% of calcium sulfate whiskers, 0.1%-0.5% of nucleating agents, 0.1%-0.5% of main antioxidants, 0.1%-0.3% of auxiliary antioxidants, 0.3%-1.7% of modified assistants, 0.2%-0.7% of silicon oil and 5%-25% of glass fiber. The preparation method of the composite material comprises the following steps of: firstly mixing nylon 6 and silicon oil in a high-speed mixer, sequentially adding whiskers, nucleating agents, antioxidants, modified assistants and compatibilizing and toughening agents, uniformly mixing, and then melting, extruding and pelleting the mixture with glass fiber in a combined double-screw extruder, wherein the extrusion temperature is 240-260 DEG C. The glass fiber reinforced nylon 6 composite material has the advantages of low cost, excellent mechanical property, good fluidity, smooth surface and the like and can be used for devices with higher surface requirements, such as microwave ovens, electric tool panels and the like.

The invention discloses a phosphorus-containing halogen-free flame-retardant polylactic acid, which is obtained by leading phosphorus element with flame retardant function into a molecular backbone through a chain extending method or a coupling method. The phosphorus content of the polylactic acid is between 0.1 and 5 weight percent, and the vertical combustion level of the polylactic acid is V-0. The invention also discloses a method for preparing the halogen-free flame-retardant polylactic acid, and a flame retardant material formed by blending the phosphorus-containing halogen-free flame-retardant polylactic acid with common industrial polylactic acid. The phosphorus-containing flame-retardant polylactic acid provided by the invention leads flame-retardant element into the molecular backbone of the polylactic acid through chain extending or coupling reaction, thereby improving the molecular weight of the polylactic acid, endowing a polylactic acid body and the blended flame retardant material with good flame retardant property and overcoming the disadvantages of poor compatibility, precipitation easiness and the like caused by the application of additive flame retardant. In addition, as no halogen component is contained, no halogen-containing gas can be released during application, thereby particularly preventing the release of harmful gas from polluting environment and harming human bodies during combustion.

The invention discloses a preparation method of energy-storage composite material, and adopts the technical scheme as follows: hydantoin epoxy resin is used to coat and modify ceramic material, and then the mixture is in composite with vinylidene fluoride resin or a vinylidene fluoride copolymer resin matrix, so that the energy-storage composite material is obtained. According to the invention, the preparation method is simple, the composite material having high energy density in a low electric field is obtained, and problems about poor compatibility between inorganic ceramic and organic high polymer material and nonuniformity in mixing are solved.

A low-differential-loss low-phase-shift high-integration-level five-level marching type ultra-wide-band numerical control attenuator is formed by a single signal channel which comprises a transmission line TL0, an 8dB attenuation module of a pai-type structure, an inductor L1, a 0-7dB combined attenuation module of a T type-bridge T type combined structure, an inductor L2, a 16dB attenuation module of a pai-type structure and a transmission TL1 in a cascaded mode in sequence based on the RF CMOS technology. An MOS tube is used as a control switch, five independent control ends controls three attenuation modules to work, an inducting network is used for phase compensation, working frequency range is Ku wave band within the attenuation range of 0-31 dB with marching length of 1dB, and 32-state low-differential-loss low-phase-shift signal amplitude attenuation can be achieved. The attenuator has the advantages of being low in differential loss, low in additional phase shift, low in production cost, small in chip area and compatible with a digital processing module, and the attenuator can be used for single-chip ultra-wide-band communication system integration.

The invention relates to a preparation method of an insulating high-thermal radiation coating suitable for various base materials. The paint of the coating comprises the following ingredients by mass: 40 to 60 parts of a film-forming material, 30 to 50 parts of an insulating heat conducting filler, 40 to 70 parts of solvents, 0.3 to 2.0 parts of a wetting dispersant, 0.2 to 1.0 part of a foam killer, 0.1 to 0.8 part of a leveling agent, 0.02 to 0.1 part of a drier, 5 to 15 parts of a cross-linked curing agent adopting isocyanate. The preparation method comprises the following steps: uniformly spraying the paint on the surface of a device in such a manner that the sprayed layer is 0.01 to 0.03 mm in thickness each time and the total thickness is 0.13 to 0.18 mm. The coating prepared according to the method is high in hemispherical emissivity, thermal conductivity and volume resistivity, and has excellent salt spray resistance, moisture and heat resistance and aging resistance.

Disclosed in the invention is an energy-harvesting-circuit-based piezoelectric-electromagnetic composite energy harvesting device. The invention relates to a piezoelectric-electromagnetic composite energy harvesting device capable of improving an output power, which belongs to the technical field of the new energy and power generation. The piezoelectric-electromagnetic composite energy harvesting device comprises a piezoelectric-electromagnetic composite energy harvesting device body and an energy collection circuit. The piezoelectric-electromagnetic composite energy harvesting device body consists of a housing, a coil, an upper permanent magnet, a piezoelectric ceramic material, a foundation beam, a tapered permanent magnet, a lower permanent magnet, an upper electrode, a piezoelectric plate, a lower electrode, a left piezoelectric plate upper electrode lead, a right piezoelectric plate upper electrode lead. The energy collection circuit includes an electromagnetic energy harvesting device energy collection circuit, a piezoelectric energy harvesting device energy collection circuit, and a charging circuit for realizing composite charging and preventing current returning. According to the invention, conversion from an alternating current to a direct current is realized; the output power supply is improved for a load. The energy harvesting device has advantages of green and pollution-free effects, high energy density, shortened charging time, high reliability, high environment adaptability, convenient operation control, and low maintenance cost and the like.

The invention relates to an encoding method and a decoding method for a color two-dimensional code, and belongs to the technical field of computers and two-dimensional codes. The encoding method comprises the following steps: step one, enabling all colors needing to be used by the two-dimensional code to correspond to corresponding numerical values in a one-to-one correspondence mode; step two, converting information to be expressed into single characters one by one; step three, converting the single characters into ASCII (American Standard Code for Information Interchange) codes; step four, converting the ASCII codes into N-system digits; step five, converting the digits into different colors; step six, filling a matrix graph with the colors in the step five to form the color two-dimensional code. The encoding method and the decoding method for the color two-dimensional code provided by the invention is good in practicability, can overcome the problems that a traditional two-dimensional code is low in information storage content and poor in compatibility and cannot express complicated pictures and scenes; meanwhile, the color two-dimensional code has rich colors and relatively strong visual impact.

Provided is a broadband optical frequency comb generating system based on phase lock control. The broadband optical frequency comb generating system comprises a narrow linewidth laser, optical splitters, a FP cavity electro-optic phase modulator, a first photoelectric detector, a second photoelectric detector, a bias Tree, a referential microwave signal and a point phase lock controlling module. A connection in the sequence of the optical splitter, the FP cavity electro-optic phase modulator, the optical splitter, the first photoelectric detector, the second photoelectric detector, the bias Tree, the referential microwave signal and the point phase lock controlling module is established. An input end of a phase lock controlling device is connected with an output end of the referential microwave signal, and an output end of the phase lock controlling device is connected with an input port a of the bias Tree. According to the broadband optical frequency comb scheme generated on the basis of an electric phase lock control method, the difficulties in the aspects such as the bandwidth, the weight, the volume and the electromagnetic compatibility in the traditional method are solved.

The invention belongs to the field of medicine and high-polymer materials, and discloses a method for preparing small-diameter artificial blood vessels on the basis of nanotechnologies. The method includes steps of dissolving, by weight, 8% of fibroin and 5% of polycaprolactone in hexafluoroisopropanol to obtain spinning liquor; manufacturing the nano-fiber blood vessels with the wall thicknesses of 130-170 micrometers on cylindrical rod-shaped receiving screens with the diameters of 1-1.2mm by means of electrospinning by the aid of electrospinning technologies. Compared with the prior art, the method has the advantages that requirements of tissue engineering on high tissue compatibility, high porosity, plasticity and degradability can be met owing to the electrospinning technologies, vascular stents can be modified by cell activity factors (mechanical growth factors) and medicine (heparin) with anticoagulant activity, and accordingly shortcomings of technological complexity and poor tissue compatibility of existing cell-modified vascular stents can be overcome by the aid of the method.

The invention relates to a method for preparing a metal organic frameworks (MOFs) membrane on the surface of a polytetrafluoroethylene hollow fiber carrier. A continuous crackless MOFs membrane is prepared on the surface of a polytetrafluoroethylene hollow fiber membrane through a method of ''seed precoating-heat treatment-secondary growth''. The method is characterized in that after seed precoating, seeds and the polytetrafluoroethylene carrier are effectively combined through the heat treatment method so as to induce to generate the continuous MOFs membrane. The method of the invention has certain universality, is simple to operate, and is easy to control.

The invention discloses a polybutylene terephthalate / polyphenylether (PBT / PPO) composite material, which comprises the following components in percentage by weight: 55 to 80 percent of polybutylene terephthalate, 15 to 30 percent of polyphenylether, 3.0 to 12 percent of compatilizer, 0.3 to 1.0 percent of oxidation inhibitor, and 0.5 to 2.0 percent of processing aid. The compatilizer is obtained by reacting and extruding a polar copolymer A, a polar copolymer B, an activated monomer and an initiator, wherein the extruding temperature is of between 180 and 200 DEG C; the polar copolymer A is acopolymer which contains glycidyl methacrylate; the polar copolymer B is polystyrene or a copolymer thereof; and the activated monomer is an organic acid or an ester. The PBT / PPO composite material of the invention has the characteristics of good processing property and mechanical property; and the used compatilizer has the advantages of strong compatibility, little dosage, simple preparation andthe like, and overcomes the defects of poor compatibility and high cost in the conventional PBT / PPO composite material.

The invention belongs to the technical field of biological materials, and discloses a hydrogel material for 3D bioprinting and a preparation method and application of the hydrogel material. The hydrogel material comprises the following components in percentages by mass: 0.5-10% of gellan gum and / or derivatives, 0.1-20% of PEG and / or derivatives thereof, 0-1% of a crosslinking initiator, 0-15% of biologically active components and the balance of a solvent. The hydrogel material is double-network hydrogel based on the gellan gum and PEG; interpenetrating double-network structures are formed in a physiological environment; and the hydrogel material has good structure and dimensional stability, and has the advantages of quick gum formation under physiological conditions, excellent cell compatibility, small immunological rejection, high cell encapsulation efficiency, controllable mechanical strength, biodegradability and the like. The hydrogel material is applied to 3D bioprinting; the shortcomings of low curing speed, harsh curing conditions, limited mechanical properties, poor cell compatibility and the like are overcome; and the hydrogel material has obvious advantages and good industrialized prospect.

The present invention provides a method for graft modification of insoluble ammonium polyphosphate (APP) through organosilicon, and a use of the obtained product. The method comprises: dispersing insoluble APP in a solvent, adding active organosiloxane under stirring, uniformly mixing, heating to achieve a temperature of 40-100 DEG C, removing the solvent, drying, heating to achieve a temperature of 110-220 DEG C, carrying out a reaction for 30-120 min, cooling, and crushing to obtain the modified insoluble APP finished product. According to the present invention, the graft modification product has excellent fire retardation and excellent hydrophobicity, and disadvantages of easy moisture absorption, poor compatibility and the like of the insoluble APP are overcome; the processed substrate can obtain a good fire retardation effect and a good waterproof effect, does not contain halogen and formaldehyde, and can be widely used in plastics, rubbers, textiles and other fields.

The invention relates to a hydrophilic modification method of a high-flux PVDF porous membrane. The method comprises the following steps that PVDF powders, tannic acid and PVP are used as raw materials, firstly the PVDF porous membrane is prepared by adopting a phase inversion method, a metal ion solution is used as coagulation bath, by means of the strong complexing capacity of tannic acid with metal ions, a relatively stable molecular chain interpenetrating network structure is formed on the surface of the membrane and inside the membrane, thereby effectively complexing with tannic acid containing a plurality of hydrophilic groups, and the tannic acid has good complexation with PVP, so that more PVP is fixed, and finally a composite hydrophilic channel of tannic acid-PVP-metal ion is formed inside the membrane, so that a PVDF modified membrane with high flux and better hydrophilicity is prepared. The preparation method has the advantages of being wide in raw material source, low in preparation cost and simple in processing technology, and being beneficial for bulk production and marketization application and popularization, and meeting green environmental protection requirements.

The invention belongs to the technical field of image splicing, and discloses an image splicing method based on feature points, a virtual reality system and a camera. The method comprises the following steps: firstly, extracting fast angular points from two images, calculating harris angular point responses, carrying out grid division, carrying out harris angular point response sorting on the fastangular points in each grid, and screening out strong feature points; secondly, performing orb and brief descriptor description on the strong feature points, performing violent matching respectively,screening feature point matching pairs which are completely consistent in matching, and calculating a guide matrix; mapping the previously extracted fast corner points by using a guide matrix, and carrying out region limited matching; after the feature point matching pairs are obtained, ransac is improved according to the similar position conflict relation of similar homography matrixes, and finally a good result can be obtained. According to the method, the homography between the images can be quickly calculated, and a better splicing result is obtained.

The invention discloses high belite sulphoaluminate cement based self-leveling mortar. The mortar comprises the following powder raw materials in parts by weight: 30-40 parts of high belite sulphoaluminate cement, 5-7 parts of anhydrite, 12-15 parts of heavy calcium powder, 40.5-45 parts of river sand, 2-2.5 parts of emulsion powder, 0.35-0.45 part of water reducing agent, 0.35-0.45 part of defoaming agent, 0.1-0.2 part of cellulose ether, 0.1-0.2 part of tartaric acid, and 0.05-0.1 part of lithium carbonate. According to the high belite sulphoaluminate cement based self-leveling mortar, the high belite sulphoaluminate cement is used as the only cement-based gel material, so that the performances are outstanding, and various additives can be specifically selected, and as a result, the adaptability of the gel material and the various additives can be obviously improved; the preparation technology processes of the self-leveling mortar can be greatly simplified, and moreover, the product performance stability can be greatly improved; meanwhile, the cost can be decreased.

The invention discloses a preparation method for touch epoxy acid anhydride impregnating varnish and impregnating varnish. The method comprises the following steps of: putting 100 parts by weight of epoxy resin into a reaction kettle; heating to 60 DEG C; adding 70-90 parts by weight of acid anhydride, and stirring at the rotating speed of 100-200 revolutions per minute for 30 minutes; adding 1-50 parts by weight of cage-shaped polyhedral oligomeric silsesquioxane (POSS); and continually stirring at the room temperature at the rotating speed of 100-200 revolutions per minute for 1 hour to form the epoxy acid anhydride impregnating varnish. The adopted cage-shaped POSS is cage-shaped POSS containing an active group or an inertial group capable of participating in an epoxy resin reaction, and the general formula can be shown as RXRY(SiO1.5)n, wherein n=8; x+y=8; and R can be one of an active aliphatic epoxy group, an aliphatic epoxy group, amino and hydrogen atom or one of inertial groups selected from phenyl, cyclopentyl, chloropropyl and p-nitrobenzene, and has superior comprehensive performance. Particularly, the toughness is improved remarkably, and the toughness of a material is improved by 10-200 percent.

The invention discloses a hollow type magnetic nanoparticle contrast agent. The microsphere has a hollow inorganic / organic / inorganic three layer structure, a cavity is located in the center of the microsphere and is filled with air; the inner layer is Fe3O4 magnetic particles; the intermediate layer is core-shell polymer nanoparticles obtained by free radical copolymerization of polyacrylic acid-divinyl benzene, and the copolymer and the Fe3O4 magnetic particle in the inner layer form stable coordination bonds or ionic bonds through inner surface carboxyl group and ferric salt; and the outer layer is silicon dioxide, and the carboxyl group on the surface of microspheres and silicon hydroxyl on silica surface are connected through hydrogen-bond interaction. The material has the advantages that the polymer microsphere belongs to the nanometer particle, the inner Fe3O4 magnetic particles enable the contrast agent to target, the silica hollow microspheres have good biological compatibility and the mechanical stability, and internal cavity can produce strong echo signal in contrast mode.

The invention relates to an alternating current-direct current integrated power monitoring device used for a station, relates to electric power monitoring, and especially belongs to the technical filed of alternating current-direct current monitoring for a station. The alternating current-direct current integrated power monitoring device comprises a CPU (central processing unit) control circuit, a man-machine interface, a data storage circuit, an alarm interface circuit and a communication interface circuit, wherein the CPU control circuit is respectively connected with the man-machine interface, the data storage circuit and the communication interface circuit through signals, and the alarm interface circuit is connected to one output end of the CPU control circuit. The alternating current-direct current integrated power monitoring device provided by the invention can carry out centralized monitoring management on equipment such as an alternating current power supply system, a direct current power supply system, an inversion power system, a communication power supply system in the station and also can carry out centralization management on the data of all equipment; and an IEC (integrated ethernet chip) 61850 protocol is adopted to carry out communication with an upper computer system through an Ethernet interface, and a transformer substation / distribution substation power system becomes an open system.

The invention relates to the application of high-positive-charge green fluorescent protein (GFP) in the research of glycosaminoglycans (GAGs), wherein the amino acid sequence of the high-positive-charge fluorescent protein is as shown in SEQ ID No. 1. According to the application of the high-positive-charge GFP, the high-positive-charge GFP is taken as a fluorescent probe with biocompatibility, high sensitivity and high selectivity for the first time and is applied to the visualization of the GAGs on the surface of a living cell, the high selectivity quantitative analysis of the GAGs in serum, the pollution analysis of excessively sulfated chondroitin sulfate in heparin, etc. Therefore, the defects that the traditional cationic dye is poor in biocompatibility, low in selectivity, low in sensitivity and the like in the detection of the GAGs can be overcome; the high-positive-charge GFP has important application value and can be widely applied to basic and application study, clinical diagnosis, detection of medicines and food, and the like which are related to the GAGs.

The invention discloses a method for preparing a natural high-molecular material by the utilization of rare earth metal ion coordination. Through strong coordination between rare earth metal ion and oxygen atom in carboxyl function group, the rare earth metal ion coordinated natural high-molecular material is prepared by an ion permeation and diffusion method. According to the method, carboxyl-modified graphene oxide is introduced into the natural high-molecular material such that mechanical strength of the material is enhanced and structural regularity of the material also can be boosted. By selecting one ingredient from sodium alginate and xanthan gum as the base material, the material can be endowed with good biocompatibility and biodegradability. The method of the invention is simple and feasible. Reaction condition is mild. The prepared natural high-molecular material has good biocompatibility and strong mechanical properties.

The invention discloses a method and device for achieving PLC controlling in an FPGA platform. The method is converted into Verilog HDL programs through an ST2FP resolver, not only can input and output logic of a PLC be correctly achieved, but also the programs can run in the FPGA platform in parallel, therefore, the mode that a traditional PLC only can sequentially scan executive programs is fundamentally changed, the PLC program execution time is not related to the size of the programs but only related to the depending level of the programs, and the program execution efficiency of an FPGA-PLC is incomparable for the traditional PLC. According to the device, an IEC-61131-3 standard is applied to the FPGA-PLC, the defects that the traditional PLC is poor in closing property and compatibility are overcome, breaking of the monopoly situation of high-end PLC manufacturers is facilitated, the characteristic that the FPGA executes the programs in parallel is also facilitated, therefore, the FPGA-PLC can execute the PLC programs in parallel, and the real-time performance of the PLC is significantly improved; processing of the FPGA is the implementation process of pure hardware, and therefore the FPGA-PLC system has the very high stability.

The invention discloses a lipoid-cationic polymer siRNA gene diverting-dye agent and preparing method, which is characterized by the following: supplying a lipoid-cationic polymer and siRNA gene inverting-dye agent hydraulic fluid; making the polymer as brassidic acid structure with branch lateral chain and cationic polymer with molecular weight at 50KD; setting the hydraulic liquid incorporates normal saline, dimethyl sulfoxide and glycerol; synthesizing lipoid-cationic polymer and hydraulic liquid; mixing the lipoid-cationic polymer and hydraulic liquid; getting the product. This invention can overcome defects of poor compatibility and high toxicity, which product can be added into cell culture medium.

The invention relates to grapheme / fluoroether rubber modified by a covalent bond of fluorine-containing ionic liquid, and a preparation method of the grapheme / fluoroether rubber. A chemical reaction between organic functional groups is utilized to enable ionic liquid to be grafted on the surface of graphite oxide, thermal recovery is performed to obtain functional filler, and the filler fluoroether raw rubber and a compounding agent are mixed, vulcanized and molded to obtain a final product. The grapheme / fluoroether rubber effectively overcomes the defects that grapheme can easily self-aggregate and the compatibility with rubber molecules is poor, and the fluoroether rubber filled with the functional grapheme provided by the invention has excellent mechanical properties, friction resistance, wear resistance, and high temperature resistance; moreover, the preparation method is easy and simple, and has a good application prospect.

The invention relates to a voice frequency access control system based on mobile equipment. The voice frequency access control system comprises a voice frequency verification device, an access control controller, the mobile equipment and a background server, wherein the voice frequency verification device is in voice frequency communication with the mobile equipment and is used for carrying out authorized verification on voice frequency information transmitted by the mobile equipment, generating a triggering signal to the access control controller to carry out access control opening and closing actions, and simultaneously transmitting verification information to the access control controller; the access control controller is used for receiving a plurality of types of access control opening and closing signals, executing access control opening and closing instructions and storing access control opening and closing records; the mobile equipment is used for handshaking with the voice frequency verification device and transmitting a voice frequency coding identity verification code with a pre-set format, and taking a keyword password through the background server; the background server is used for applying for, auditing and issuing the identity verification code of the mobile equipment, updating an authorized mobile equipment identity verification code list stored by the voice frequency verification device, generating the keyword password, controlling aging, uploading an updated password list to the access control controller, and reading door opening records and the like stored in the access control system. The system is relatively simple to operate and has relatively good user experience.

The invention relates to a flame-retardant curing agent containing phosphorus and a P-C key structure, a preparation method of the flame-retardant curing agent and flame-retardant epoxy resin with the flame-retardant curing agent as raw materials and aims at solving the problems that existing flame retardants containing phosphorus are poor in heat stability, prone to hydrolysis and bad in compatibility with epoxy resin matrixes. The flame-retardant curing agent is a flame-retardant curing agent containing phosphorus and the P-C key structure. The method includes the steps that firstly, diphenylphosphine oxide and raw materials A are added into a four-port round-bottom flask, and substances in the flask are heated to be totally fused under nitrogen protection; secondly, solvents are added, react in a backflow state and are cooled to room temperature, the solvents are removed, obtained precipitate is dried after being washed, coarse products are obtained and recrystallized, and finally white powdery products are obtained. The flame-retardant curing agent is good in heat stability, not prone to hydrolysis and good in compatibility with epoxy resin matrixes. The flame-retardant curing agent is applied to the field of flame-retardant curing agents containing phosphorus.