120results about How to "Increase order of magnitude" patented technology

The invention discloses a microwave electric field intensity measurement method and a measurement device. The measurement method comprises the steps that coupling light and probing light generated by a laser excite clod atoms in vacuum equipment from a ground state to the Rydberg state coherently; the ground state and the Rydberg state are taken as two internal states of the Raman effect, the appropriate detuning is selected, microwaves generated by a microwave source are applied to the clod atoms, and a Raman absorption peak of the clod atoms is enabled to split; the splitting width of the Raman absorption peak is measured, and the electric field intensity of the microwave source is calculated according to the splitting width. The measurement method disclosed by the invention is based on a technology of cold Rydberg atom manipulation, utilizes the Raman effect to suppress spontaneous radiation to realize narrow-linewidth absorption peak splitting, realizes the purpose of improving the microwave electric field measurement accuracy by an order of magnitude through measuring the splitting width of the Raman absorption peak, and thus provides a new technology foundation for studying precision measurement for the microwave electric field.

The invention relates to an order processing system and a method thereof, wherein the system comprises an order server and a plurality of hand-held order processors which are connected with the server and are provided with wireless communication modules and merchant IDs thereof; the method comprises the following steps that: the order server sends order notification information to the hand-held order processor of a specified merchant according to a new order, and inquiries a database according to an order inquiry instruction sent by the hand-held order processor of the merchant and returns the inquired order to the corresponding hand-held order processor, simultaneously receives the order confirmation information and the delivery notification information send by the hand-held order processor of the merchant and forwards the same to a client; and the hand-held order processor receives the order notification, inquires the order, and sends the order confirmation and the delivery notification information. The order processing system and the method thereof have low investment cost, do not need wiring and are convenient to operate.

The invention discloses a real-time multi-DSP (digital signal processor) debugging system for a signal processor system. The real-time multi-DSP debugging system for the signal processor system mainly comprises a single board computer, a DSP signal processing board and other board cards, wherein the single board computer is the main equipment of the signal processor, has the functions of control, display and data storage and can be communicated with other board cards of the signal processor via a VME (versa modular eurocard) bus; the DSP signal processing board is the slave equipment of the signal processor, is used for realizing abundant signal processing algorithms and mainly consists of a plurality of DSPs and FPGAs (field programmable gate array) modules; the single board computer transmits the DSP program to the DSP signal processing board via the VME bus; and the program is loaded to each DSP via an HPI (host port interface) bus by the FPGA module on the signal processing board. According to the technical scheme provided by the invention, the DSP program can be debugged in real time without interrupting the program operation, and the data transmission rate can reach hundreds of MB (mega byte) / s with a method that the DSP is debugged by an HPI interface. Compared with the traditional debugging method, the real-time multi-DSP debugging system for the signal processor system is improved by one order of magnitude, and a plurality of DSPs of a plurality of board cards can be simultaneously debugged.

The invention discloses a circle detection method based on histogram peak value search. The method includes the following steps of firstly, conducting edge direction on an original image to obtain a binary image; secondly, horizontally and vertically scanning edge points in all lines and all rows in the binary image to obtain a horizontal and vertical midpoint histogram; thirdly, searching for an overall peak value in the horizontal and vertical midpoint histogram wherein the transverse coordinate corresponding to the overall peak value and the vertical coordinate corresponding to the overall peak value are coordinates of the circle center of a candidate circle; fourthly, obtaining a histogram of distances between all the edge points and the circle center of the candidate circle and normalizing the histogram; fifthly, judging whether the candidate circle is true or false according to the local peak value in the normalized distance histogram; sixthly, deleting the edge points located on the candidate circle, renewing the horizontal and vertical midpoint histogram, returning to the third step, and repeatedly executing the steps till the number of detected circles meets the requirement. By means of the method, the geometrical feature that a circle is centrosymmetric is fully used, the circular target can be rapidly and accurately extracted based on histogram peak value search, and compared with a common method, the efficiency is improved by a magnitude order.

The invention relates to a large water-surface blue-green algae removing device researched by the principle of simulating chub to filter-feed plankton. The large water-surface blue-green algae removing device adopts a 21m*6m power platform as a carrier and a 50KW diesel generator unit as power; a separating shovel with the width of 10m is arranged at the front end so as to separate surface water rich in blue-green algae when in process, ten branch pump-pipe systems are used for absorbing algae water from the separating shovel, the algae water is conveyed to the algae water to a 600m<2> gill type filter for primary filtration, and then concentrated by a shaking sieve, and a 3m<3> buffer pool stores the algae slurry temporarily; a rear 11KW electric slurry hanging machine provides non-operation drive, a rear 5.5KW frequency-modulation electric slurry hanging machine provides operation drive, and a front 2.2KW spraying propeller provides auxiliary steering power. The width of the operation is 10m, the maximum operation speed is 5km / h, and the capability for absorbing and filtering algae is 1000m<3> / h. The technology can be used for removing the blue-green algae on the lake in a scale manner and has the advantages of high efficiency and low energy consumption.

The invention discloses a graphene / flax composite fiber preparation method, which comprises: 1) preparing a compound enzyme refining agent; 2) pre-treating flax fiber; 3) refining, wherein the prepared flax fiber is immersed into the compound enzyme refining agent and soaked, and washing and dewatering drying are performed to prepare the modified flax fiber; and 4) uniformly mixing the modified flax fiber and graphene fiber. According to the present invention, the flax fiber is mixed with the graphene fiber, such that the strength and the toughness of the blended yarn of the flax fiber can be improved, and the resistivity of the mixed fiber achieves 10-103 [omega].m while the resistivity of the conventional fiber is about 10-14 [omega].m, wherein the resistivity is improved by more than 10 magnitude orders; the flax fiber is subjected to the modification treatment with the biological enzyme so as to improve the dyeing effect of the yarn; and the impurity pectin removing effect and the impurity lignin removing effect are good with the selected compound enzyme refining agent, and the chelating agent is increased so as to further enhance the impurity removing effect of the compound enzyme.

The invention relates to a power transmission line icing intelligent on-line monitoring system which comprises an icing monitoring unit, a communication network and a server. The icing monitoring unit is connected with the server through the communication network and collects state information of a power transmission line, icing thickness information is figured out through an icing thickness mathematical model, the state information and the icing thickness information are transmitted to the server through the communication network in real time, and icing thickness changing trend information of the power transmission line is calculated through the server according to the state information and the icing thickness information. If the icing thickness exceeds a setting threshold value, an alarm is timely given, so real-time monitoring for the power transmission line is achieved. Compared with the prior art, the power transmission line icing intelligent on-line monitoring system has the advantages of being high in integration and reliability and low in power consumption.

The invention discloses a magnetoelectric loop wire test method for continuously applying a scanning magnetic field and a device thereof and relates to a performance test method of a magnetoelectric material and a test device thereof. The device is provided with an electromagnet, a direct current power source, a teslameter, a Helmholtz coil, a phase-locked amplifier, a function signal generator, a shield and a computer. The magnetoelectric loop wire test method comprises the following steps: connecting a sample with the input end of the phase-locked amplifier, setting the frequency of the function signal generator and a time function of the phase-locked amplifier and starting signal processing software; controlling the electromagnet to output the scanning magnetic filed and applying the scanning magnetic field on the sample; continuously acquiring the amplitude and the phase of magnetoelectric voltage as well as a magnetic field intensity value of the scanning magnetic field by the computer; carrying out signal processing on the acquired amplitude and phase and automatically setting signs of the amplitude to obtain the magnetoelectric voltage by the computer according to the rule that the magnetoelectric voltage is positive when the phase is less than or equal to zero and is negative when the phase is more than zero; and automatically producing a magnetoelectric loop in real time and saving experimental data by taking the magnetic field intensity value of the scanning magnetic field as an X axle and the magnetoelectric voltage as a Y axle through the computer.

The invention discloses a high-precision zero drift compensation circuit for an analog multiplier. The influence of zero drift on the analog multiplier is compensated. The high-precision zero drift compensation circuit comprises the analog multiplier, a transmission line transformer, a reference power supply, a zeroing resistor, a grounding resistor and a temperature sensor, wherein the transmission line transformer is connected to the input end of the analog multiplier, and is used for reducing the influence of biasing current at the input end on the analog multiplier; and fixed voltage is applied to the zeroing end of the multiplier through the reference power supply, the zeroing resistor and the grounding resistor in a voltage share manner to compensate the biasing voltage at the output end. The grounding resistor with a low resistance value is used for reducing the influence of the biasing current at the zeroing end on the analog multiplier; and compensation voltage of which the temperature excursion size is equal to that of the multiplier and the direction is opposite to the direction of the multiplier is formed at the zeroing end of the multiplier through the temperature sensor and the grounding resistor, so that the influence of the temperature excursion on the analog multiplier is reduced effectively. The high-precision zero drift compensation circuit has a simple structure; and suppression to the zero drift of the analog multiplier is improved by an order of magnitude.

The invention discloses a lithium ion battery interlayer solid-state electrolyte and a preparation method thereof, belonging to the technical field of lithium ion battery electrolyte. The preparationmethod comprises the following steps: (1) evenly mixing inorganic solid electrolyte with electrostatic spinning precursor solution, preparing a polymer matrix doped with inorganic solid electrolyte byelectrostatic spinning, and obtaining a composite substrate after vacuum drying; (2) dissolving lithium salt in solvent, adding polymer electrolyte, stirring and reacting to obtain polymer solution,and pouring and drying the polymer solution to obtain a polymer electrolyte membrane; and (3) clamping the polymer electrolyte membrane obtained in step (2) to the two sides of the composite substrateobtained in step (1), and carrying out hot pressing with a hot press to obtain the lithium ion battery interlayer solid-state electrolyte. By using the electrolyte prepared by the method of the invention, the conductivity is improved, and the interface performance of all-solid-state electrolyte is optimized.

The invention relates to a method for producing rabies vaccines by applying a bioreactor and a sheet carrier, belonging to the technical field of biological products. The method comprises the following steps of: culturing cells by taking BioNOC IITM cell culture disks of the Taiwan SaiYu cell technology Co., Ltd as carriers in a Celligen 310 type 14 L bioreactor with a fixed bed basket-type stirring system; preparing rabies viruses with high titer through specific jar cell density, added viruses and the set parameters of the Celligen 310 type 14 L bioreactor; and producing the rabies vaccines. The method disclosed by the invention has the advantages of high density of cultured cells, high titer of the rabies viruses, high yield and low production cost; the Celligen 310 type 14 L bioreactor is enlarged in surface area used for cell adherence growth by adding the BioNOC IITM cell culture disks and then achieves the cell culture density at 5*108 / ml by creating good culture conditions; according to the method disclosed by the invention, the titer of the rabies viruses is correspondingly, greatly logarithmically enhanced and can maximally reach 1*109 FFU / ml, and therefore production cost is greatly reduced; in addition, the method disclosed by the invention is suitable for the large-scale production of rabies vaccines.

The invention discloses a dissipation thermal-insulation composite material and a preparation method thereof, relates to the field of light anti-ablation composite materials and aims at solving the technical problem that an existing preparation technology is complex and has high cost. According to the composite material, a carbon material is utilized as a base body, the base body is immersed into a molten impregnant under vacuum high-temperature condition, capillary force of micro holes in the base body is utilized to immerse the impregnant into the base body to form the composite material. The preparation method comprises the steps: 1, preparing the impregnant; 2, processing the base body material; 3, processing a graphite crucible; 4, performing high-temperature impregnation. The prepared light anti-ablation dissipation thermal-insulation composite material disclosed by the invention has simple technology, short period, low manufacturing cost and good ablation resistance; the composite material can be applied to electroprocessing and machining, can be applied to manufacturing a throat lining and a gas rudder of a solid rocket engine jet pipe, also can be applied to manufacturing an end cap, a wing leading edge and a tail vane of a hypersonic aircraft and can be applied to manufacturing members of a turning orifice plate and the like of a guided missle.

The invention relates to a trace cell ChIP (Chromatin Immunoprecipitation) method. The method comprises the following steps: 1) dividing a cell sample to be detected into n groups, wherein n is a natural number which is not equal to 0; 2) carrying out crosslinking fixation on the nth group sample; 3) treating the nth group sample by utilizing a cell membrane perforating agent; 4) carrying out enzyme digestion by utilizing Tn5 transposase and breaking a chromatin segment of the nth group sample, and connecting a barcode sequence and a primer sequence to two ends of a production segment DNA (Deoxyribonucleic Acid), wherein when the n is greater than or equal to 2, the barcode sequence and / or the primer sequence used in each group of step 4) are / is different; 5) when the n is greater than orequal to 2, combining samples of all groups; 6) enriching a DNA segment combined with target protein and taking a primer as an index for creating a database; sequencing and analyzing. When the methodis used for sequencing, the database creating efficiency is high; the capturing of transcription factor sites of an extremely trace amount of cells can be realized; relatively good efficiency is ensured and the stability and the accuracy are relatively good.

The invention relates to an application-specific integrated circuit for a remote infrared photoelectric switch and the remote infrared photoelectric switch using the same. The application-specific integrated circuit has an internal high speed analogue-to-digital converter (ADC) and a digital signal processing function. At least the 8bit ADC, a digital matched filter (DMF) adopting a finite impulse response (FIR) way, a digital bandpath filter (DBPF) adopting an infinite impulse response (IIR) way, a carrier detector and a digital monostable unit are arranged in the application-specific integrated circuit.

The invention belongs to the technical field of precise measuring and the field of optical engineering, and particularly relates to a high-accuracy laser large-working-distance auto-collimation device and method. The device is composed of a laser source, a collimation lens, a reflector and a feedback imaging system. The method includes the steps that the reflector is adjusted, a reflected laser beam returns to the center of the image surface of the feedback imaging system, and then angle changes of the surface of a measured object are obtained through an angle deflection measuring device on the reflector. As the reflector is additionally arranged on a traditional auto-collimation angle measuring system, the problem that as lasers reflected by a measured object deviate from the measuring system, measuring can not be carried out is solved, and then the technical advantage that the auto-collimation working range is expanded with the same working distance or the working distance is increased within the same auto-collimation working range is achieved; in addition, due to the specific design of the collimation lens, the feedback imaging system, the reflector and the like, the device and method have the advantages that the structure is simple, the manufacturing cost is low, the stability of the measuring environment can be monitored, and rapid measuring can be achieved.

The invention discloses a modeling method of a helicobacter pylori infection animal model. The modeling method comprises the steps of: 1, by using a 4-weeks old female C57BL / 6 mouse as the experimental animal, performing intra-gastric administration for 3 to 7 days by mixed antibiotic, wherein the mixed antibiotic is composed of gentamicin, vancomycin and nystatin; 2, raising the C57BL / 6 mouse which has been subjected to the intra-gastric administration in the step 1, for 6 to 8 days; 3, inoculating helicobacter pylori: fasting the C57BL / 6 mouse obtained in the step 2, carrying out intra-gastric administration by helicobacter pylori, and feeding after 8 to 12 hours, wherein the inoculating in the step 3 is performed one time every other day, and performed 2 to 4 times in total; and 4, raising the mouse which has been inoculated for 2 to 4 times in the step 3. In the modeling method provided by the invention, the experimental time is short, the operation time is less, the order of magnitude of the helicobacter pylori infection is high, and the infection time is endurable; the model can be widely used for the method of helicobacter pylori infection animal in related researches.

The invention relates to the field of precision measurement technology and the field of optical engineering and in particular relates to a portable combined zero setting high precision laser large working distance auto-collimation device and method. The device comprises a light source, a collimating mirror, a reflector, and a feedback imaging system. The method makes reflected light beams return to the image plane center of the feedback imaging system by adjusting the reflector and obtains the angle change of the surface of a measured object by means of an angle deflection measuring device on the reflector. The reflector is added to a conventional auto-collimation angle measuring system, so that the problem that measurement is impossible because reflected light of a measured object deviates from the measuring system is solved and the auto-collimation working range is increased on the condition of the same working distance or the working distance is increased on the condition of the same working range. Owing to the specific design of the collimating mirror, the feedback imaging system and the reflector, the device is small, portable, and high in measurement precision, can monitor the stability of measurement environments, and can perform measurement rapidly.

The invention provides an ultrahigh-speed compression photographing device based on compression perception and streak camera principles. The device comprises a lens, a beam splitter, a spatial light modulator, a flat mirror, a streak camera with a built-in CCD, and a decoder. Firstly, captured image information is coded through the spatial light modulator. Then the streak camera is utilized for superposing image information at different time points and performing compression sampling. Finally reconstruction is performed on the image based on a compression perception principle. According to the device, two-dimensional imaging can be performed on an ultrafast process on the condition of definite imaging speed of the streak camera; the image information is output to a decoder; a two-dimensional image dynamic process (x-y-t) is reconstructed through a TwIST algorithm; and the imaging speed can reach 10-12 frame / second. The ultrahigh-speed compression photographing device utilizes single-time photographing measuring technology which can measure un-repeated ultrafast events.

A nonmagnetic biomedical implant material is single phase austenite, and comprises 0.6-1.5wt% of C, 13-35wt% of Mn, 0.5-0.6wt% of Si, 0.5-2wt% of Ca, 0.5-2wt% of Zn, 0.5-2wt% of Ag, 0.016-0.020wt% of S, 0.022-0.025wt% of P, and the balance of Fe. A preparation method of the nonmagnetic biomedical implant material comprises the following steps: carrying out three-pass liquid nitrogen cold rolling on the above single phase austenite steel with the press amounts of 10-20%, 8-15% and 2-5% respectively; and carrying out two-stage annealing treatment: heating at a rate of 5-40DEG C / min to 200-300DEG C, carrying out heat insulation for 60-180min, cooling in a furnace, heating at a rate of 30-40DEG C / min to 600-800DEG C, carrying out heat insulation for 20-40min, and cooling in the furnace to prepare the nonmagnetic biomedical implant material. The nonmagnetic biomedical implant material has the advantages of short production period, low cost, and obviously improved integral degradation rate.

The invention provides an active lighting synchronous monitoring common-caliber tracking and pointing launching system and method and belongs to the field of electro-optical countermeasures. The active lighting synchronous monitoring common-caliber tracking and pointing launching system comprises a laser device, two tracking and pointing launching rotary table light guide mirrors, a tracking camera system, two laser adjusting mirrors, an off-axis triple-lens reflex common-caliber system, a system spectroscope, a common optical path adjusting mirror, a laser pointing monitoring system and a tracking and pointing launching rotary table. The active lighting synchronous monitoring common-caliber tracking and pointing launching system ensures the optical path pointing stability of the non-common optical path part through real-time synchronous monitoring and real-time quick adjustment on laser path pointing, implements effective tracking and pointing on a head-on coming target optical systemthrough the active lighting tracking and pointing method. The optical-mechanical structure can effectively deal with the requirements for high-dynamic tracking and pointing, the high-damage-energy density threshold, quick tuning of light beam pointing and tracking pointing, large temperature shock environmental change, superhigh system reliability and the like in the current electro-optical countermeasure field.

The invention provides a 2-acrylamido-2-methylpropyl sulfonic acid-based proton exchange membrane and a preparation method thereof, and belongs to the field of proton exchange membrane fuel cells. According to the preparation method, through solution polymerization, an acrylonitrile-styrene-2-acrylamido-2-methylpropyl sulfonic acid terpolymer is prepared; solution casting is conducted on the acrylonitrile-styrene-2-acrylamido-2-methylpropyl sulfonic acid terpolymer for film forming to prepare the 2-acrylamido-2-methylpropyl sulfonic acid proton exchange membrane. The invention further providesthe 2-acrylamido-2-methylpropyl sulfonic acid proton exchange membrane obtained through the preparation method. The proton exchange membrane has high size stability and good mechanical performance.

The invention discloses a calibration device and a method for rotational inertia. The device comprises a positioning plate for rotational inertia standard components, the center of the positioning plate for the rotational inertia standard component is a rotary central positioning hole, the positioning plate for the rotational inertia standard component rotated horizontally around a rotation axis penetrated through the rotary central positioning hole, rotational inertia standard components are placed on the left end and the right end of the positioning plate for the rotational inertia standardcomponent respectively, and there are standard component positioning holes used for positioning the rotational inertia standard component formed on positioning plate for the rotational inertia standard component.

The invention discloses a composite micro-ecological preparation for feeds, a preparation method and applications thereof. According to the preparation method, 1 Kg of the composite micro-ecological preparation comprises 50-150 g of mannooligosaccharide, 50-150 g of xylooligosaccharide, (2.0-5.0)*10<4> U glucose oxidase, (1.0-3.0)*10<12> CFU lactic acid bacteria, (0.5-1.0)*10<13> CFU Bacillus licheniformis, (0.5-1.0)*10<13> CFU Bacillus subtilis and the balance of an excipient; and the raw materials are uniformly mixed, and the obtained mixture is screened with a 20 mesh sieve to obtain the composite micro-ecological preparation for feeds. According t the present invention, the composite micro-ecological preparation can replace colistin sulfate in the applications in feeds, and can improvethe micro-ecological balance in the intestinal tracts of livestock and poultry, and improve the production performance of livestock and poultry.

The invention relates to a method for treating oily wastewater through ozone and electrochemical synergistic oxidization. According to the method, wastewater treatment is carried out through the synergistic action of ozone oxidation and electrochemical oxidation by utilizing the ozone oxidation and introducing the electrochemical oxidation. A treatment device used in the method comprises a box body, a water inlet, a power line entrance, a pressure relief opening, a discharge opening, a water outlet and an ozone inlet. Electrochemical oxidation treatment is as follows: electrical energy is directly converted into chemical energy to carry out oxidation treatment and even carry out mineralization treatment on pollutants contained in a water body, and other medicines do not need to be added. The synergistic method disclosed by the invention overcomes the defect of low oxidization capacity during only O3 oxidization, thereby greatly enhancing the oxidization capacity; and the synergistic method disclosed by the invention has the advantages of wide adaptability, no secondary pollution, quick reaction and simple equipment and easiness for operation. The COD of the oily wastewater treated through the method achieves 68 mg / L, the COD removal rate reaches 85%, and the treated water is clear and transparent and meets the requirement for discharge or recycling.

The invention discloses a three-dimensional liquid drop detection system which comprises a micro-fluidic chip, a point light source, an imaging unit, a scanning lens, and a three-dimensional liquid drop imaging unit, wherein liquid drops are distributed in the micro-fluidic chip in a three-dimensional state; light beams of the point light source are focused through a confocal detection system, andthe focused light beam is projected onto the liquid crops; the imaging unit is used for acquiring fluorescence signals reflected by the liquid drops to form a sectional image;; the three-dimensionalliquid drop imaging unit is used for processing all layers of sectional images of the liquid drops to form a three-dimensional liquid drop image. The scanning lens comprises a galvanometer or an objective lens moving in a mechanical way to move a focusing and projecting position of the liquid drops in the micro-fluidic chip by the point light source. The detection method disclosed in the inventiondetects and images the three-dimensionally distributed liquid drops through the point light source in a confocal manner, and is fast in quantitative detection, high in sensitivity and low in error; compared with the traditional detection for the single layer of liquid drops, the detection method increases the order of magnitude of samples treated within unit time, is clear in imaging and high inprecision, and is suitable for detection and analysis of proteins and nucleic acids and biopsy and early clinical diagnosis of tumors.

The invention discloses mixing, stirring and oil discharging equipment and an oil discharging process method of ground sesame oil. The equipment comprises a bracket, which is connected with a weighingsensor and is connected with a tank body jacket, wherein the bottom of the tank body jacket is connected with a material outlet, the tank body jacket is connected with a tank body, the tank body is connected with a gas sucking port, the gas sucking port is connected with a metal hose, the metal hose is connected with a vacuum pump, the vacuum pump is connected with a control box, the tank body isconnected with a material inlet, a manhole, a pressure gauge and a water inlet, the tank body is connected with a gas inlet valve, and the tank body is fixedly provided with a variable frequency motor. The equipment and the method are used for mixing, stirring and oil discharging equipment of ground sesame oil.

The invention relates to a homogenized incoherent light source device. The device comprises an amplified spontaneous emission light source, a light beam coupling unit and a dodging light guide, wherein the amplified spontaneous emission light source, the light beam coupling unit and the dodging light guide are sequentially arranged in a light beam propagation direction, the light output by the amplified spontaneous emission light source is coupled to an input end face of the dodging light guide due to the arranged position and the arranged orientation, and the ratio of the length to the aperture of the dodging light guide is larger than or equal to a preset ratio, so that the size of the imaging formed by the light output by the amplified spontaneous emission light source at the output endface of the dodging light guide is larger than or equal to two times of the aperture of the dodging light guide. The homogenized incoherent light source device has the advantages of less dependence of beam uniformity on light source pumping uniformity, high utilization efficiency of a pumping light source and good uniformity of output two-dimensional flat-top beams, and is a homogenized incoherent light source with high efficiency-cost ratio and low difficulty in realization.

The invention discloses a method for synthesizing cyclopeptide by multicomponent reaction under enzyme catalysis actions, which comprises the following step: in a liquid-phase system, reacting diamine, isonitrile and aldehyde under the catalytic action of an enzyme to obtain the cyclopeptide. The diamine is introduced into the multicomponent reaction, and is subjected to intermolecular chain extension and intramolecular cyclization under the catalytic action of the enzyme to prepare the cyclopeptide containing different quantities of peptide bond units. The method can efficiently construct the straight-chain peptide molecule without any other catalyst or condensing agent, and implements the synthesis of the cyclopeptide under the action of in-situ induced cyclization; and especially under the action of water, the purity of the generated cyclopeptide is higher than 95%.