1156results about How to "Broad application prospects" patented technology

The invention relates to a nanometer TiO2 / Cu2O out-phase Fenton laminated film material which consists of a TiO2 / Cu2O nanocomposite and an inorganic coating binder, wherein, the mass ratio between the TiO2 / Cu2O nanocomposite and the inorganic coating binder is 1:1-1:500; the mass ratio between TiO2 and Cu2O in the TiO2 / Cu2O nanocomposite is 1:0.01-1:100. The preparation method is as follows: nanometer TiO2 is taken as a crystal nucleus to induce the crystallization of Cu2O and the TiO2 / Cu2O nanocomposite is prepared by an electrochemical process, chemical deposit or hydrothermal method; the composite prepared and the inorganic coating binder are mixed evenly and coated on the surface of substrate cleaned to prepare the TiO2 / Cu2O laminated film and after the binder is totally solidified, the out-phase Fenton laminated film material is obtained. The nanometer TiO2 / Cu2O out-phase Fenton laminated film material has better effect on sterilization, algae-killing, killing cancer cell, organic pollutant degradation, and the like, and is hopefully applied to indoor sterilization for building, degrading organics cleaning coating, outdoor self-cleaning coating for building, metal antifouling coating, public sterilization coating, special sterilization coating in hospital, daily chemical products, etc.

The invention relates to a complex environment multi-sensor intelligent detection robot, which includes a triangular crawler intelligent autonomous mobile car, a 360-degree three-dimensional rotating three-dimensional laser scanner, a wireless communication module, an image acquisition device, an infrared detector and an environment detection sensor module, 360-degree three-dimensional The rotating three-dimensional laser scanner, wireless communication module, image acquisition equipment, infrared detector and environmental detection sensor module are all arranged on the triangular crawler intelligent autonomous mobile car, and the 360-degree three-dimensional rotating three-dimensional laser scanner is connected to the intelligent controller. The environmental information collected by the image acquisition equipment, infrared detector and environmental detection sensor module is transmitted to the remote control center through the wireless communication module, and is used to complete life search, detection and exploration tasks in complex environments or places that are inaccessible to humans. Compared with the prior art, the present invention has the advantages of precise positioning and high reliability.

The invention discloses an air flight and omnibearing adsorption micro-robot which comprises an adsorption device, an adsorption joint arm, a joint arm driving steering gear, four rotor wings, four rotor wing motors, four drivers, a robot body and a remote controller, wherein the adsorption device is arranged at one end of the adsorption joint arm, the other end of the adsorption joint arm is connected with an output shaft of the joint arm driving steering gear, the joint arm driving steering gear is arranged on a steering gear support, the steering gear support is fixedly mounted on the robot body, the four rotor wings are fixedly mounted on the respective rotor wing motors, the four drivers are respectively connected with the respective rotor wing motors, and the remote controller is used for sending a control command to the robot body for realizing air flight and omnibearing adsorption. The air flight and omnibearing adsorption micro-robot can realize air flight based on the four rotor wings and has the characteristic of stable low altitude flight, the robot can own the capability of being inhabited and adsorbed on the surface of an object in the air through the adsorption device, and the mechanism of imitating the flight and the inhabitation of a flying organism can be realized.

The invention relates to movable quick water automatic monitoring system. Particularly of the movable water quality inspection technique. It comprises the sampling section carried inside the boat with water pump and water tank, water intake tube connected with output end of the water jet aspirator on one of the side wall of the water tank, water outlet on the other side wall, water running out of the outlet for water quality inspection, exhaust pipe at the bottom of the water tank, inspection part with water quality inspector and GPS receiver, terminal settlement part with data collecting card for receiving water quality information of the water quality inspector, and working condition machine that transmits the water quality information and geological information to the telemanagement center through GPRS. It has quick, accurate feature for acquiring time and space location water quality data, quickly finding out the abnormal change of the water quality, with far reaching significance for big area water surface water quality monitoring.

The present invention is whole particle field measuring method and equipment based on laminar laser imaging and features that particles in test flow field are illuminated with orthogonal laminar laser beams and two CCD cameras are used to take the particle motion locus images both in the direction perpendicular to the flow field and in the direction parallel to the flow field separately. The equivalent diameters of particles are determined via particle image distinction and statistical analysis of covered pixels, and the particle motion speeds, including magnitudes and directions, are determined via the distinction and analysis of particle motion locus image, so as to obtain the size spectrum and speed field distribution of particles in the imaging plane. The present invention needs no addition of tracing particle, and may be used widely in the two-phase and multi-phase flow field measurement in various fields.

The invention relates to a radar image-based flyer target identifying and tracking method, which comprises the following steps: subtracting a background image from an avian detection radar PPI image to obtain a background differential radar image; performing clutter suppression on the background differential radar image; performing target information extraction and multi-target tracking; and realizing the target identifying and tracking by data fusion. The method provided by the invention fills the blank of the field of radar avian detections in China, provides technical support for flyer strike prevention work of civil aviation, is suitable for processing other radar target signals under the situation of low altitude and low speed, has wide application prospect, and can be used for guiding airport staff to implement a flyer expelling operation.

The invention discloses a microwave electric field intensity meter based on a cold Rydberg atom interferometer and a measuring method thereof. The microwave electric field intensity meter comprises: a vacuum system, which is used for cooling and trapping atom to generate a cold atom cloud for preparing a Rydberg state and generating an interference effect so as to generate a phase difference by coherent atomic states; a laser, which is used for generating coupling light and detection light and exciting the cold atom in the vacuum system from a ground state to the Rydberg state coherently; a photoelectric detector, which is used for detecting an interference fringe generated by two beams of cold atom clouds due to coherence; and a microwave source, which is used for generating a microwave electric field. According to the invention, when the microwave electric field intensity meter is applied to the evolution process of coherent beam splitting and combination, the atom cloud in the Rydberg state interacts with a to-be-measured microwave electric field, thereby generating an alternating-current stark effect; and the to-be-measured microwave electric field intensity is associated with a phase generated by the an alternating-current stark, thereby realizing precise measurement of the microwave electric field.

The invention relates to a high-adsorptivity heavy metal ion chelating agent containing a dithiocar-bamate structure and a preparation method thereof. The chelating agent has a structure shown in a formula (I). The heavy metal ion chelating agent has a stable gel network framework structure, has easy water-absorbing swelling property and does not produce secondary pollution to a water body, meanwhile stronger coordination and chelation effects exist between dithiocarbamate groups and heavy metal ions, and accordingly rapid and effective separation of multiple types of heavy metal ions can be achieved, such as such as Cu<2+>, Cd2<2+>, Ni<+> and Hg2<2+>. (shown in the description).

The invention discloses a viscosifier for drilling fluid and a preparation method thereof. An amphiprotic hydrophobic association type water-soluble viscosifier for drilling fluid is prepared by steps of mixing water-soluble monomers with hydrophobic monomers to perform a polymerization reaction, wherein the water-soluble monomers and the hydrophobic monomers have different ion categories. Amphiprotic ionic groups simultaneously exist in the structure of the viscosifier for drilling fluid provided by the invention to effectively absorb or bridge clay particles so as to guarantee an excellent tackifying effect; meanwhile, the ionic water-soluble monomers can be used for greatly improving the content of hydrophobic units in the polymer structure through hydrophilic ionic groups on the condition of high macromolecular water-solubility; and the ionic hydrophobic monomer units are introduced to guarantee the tackifying effect and water loss reduction effect of the viscosifier under high-temperature and high-salt conditions through hydrophobic association. As shown in an experimental result, the viscosifier provided by the invention still has excellent tackifying performance when the temperature is as high as 260 DEG C, and meanwhile, the viscosifier has excellent high-temperature and high-pressure water loss performance, so that the viscosifier has extensive practical application prospect and economic benefit.

The invention relates to a polymer hollow microsphere and a relative preparation method. The preparation method comprises using emulsion polymerization method to prepare water absorbing polymer, using core-shell polymerization to prepare the polymer microsphre coated by water absorbing polymer, using the reaction character of functional monomer at the surface of the polymer microsphere and atomization drying to obtain the polymer hollow microsphere with ideal size, many internal hollow microspheres and negative pressure in the hollow microsphere. The preparation method has low energy consumption, controllable preparation, various products, controllable grain size of hollow microsphere, better size adaptability, high stability, high production efficiency, no generation of waste water, waste gas and waste slag, low pollution and environment protection, whose polymer hollow microspheres have better acie and alkali resistnace. The invention is suitable for construction material and paint, with wide application and practical value.

The invention provides an unsaturated seepage physical simulator for soil in an aerated zone. The unsaturated seepage physical simulator comprises a tested soil tank, a supplementing and draining system and a measuring system, the tested soil is contained in the tested soil tank, the supplementing and draining system consists of a lateral supplementing and draining unit, a bottom supplementing and draining unit and a top supplementing and draining unit, the lateral supplementing and draining unit consists of a water supplementing device and a water draining device which are respectively mounted on two side walls of the tested soil tank, the top supplementing and draining unit consists of a rainfall device, an evaporation device and an accumulated water infiltration device, and the measuring system comprises a soil solute measuring unit, a soil moisture measuring unit, a soil water potential measuring unit and an underground water level measuring unit. The large unsaturated seepage physical simulator for the soil in the aerated zone not only can sufficiently simulate various conditions of soil in the aerated zone, but also is convenient in measurement and low in errors.

The invention discloses a reconfigurable wall climbing robot and a collaborative obstacle-detouring method thereof. The reconfigurable wall climbing robot comprises an adaptive seal skirt, a sealing lining, a centrifugal pump, a centrifugal pump motor, a centrifugal pump motor driver, a robot body, and the like, wherein the seal skirt is vertically fixed on the periphery of the lower bottom surface of the robot body; the robot body is provided with a through hole, the air inlet of the centrifugal pump is corresponding to the through hole of the robot body and fixedly arranged on the robot body, and an output shaft of the centrifugal pump motor is connected with the centrifugal pump; and the sealing lining is arranged on the lower bottom surface of the robot body and located between the through hole and the seal skirt. In the invention, each reconfigurable wall climbing robot is an independent individual, and can independently complete tasks such as reconnaissance and the like under the condition of no barrier; and when a certain wall climbing robot is required to detour an obstacle, two independent reconfigurable wall climbing robots can collaboratively complete an obstacle-detouring task through being combined to be a whole.

The invention relates to a method for preparing cellulose water-based solution by straws, which consists of three parts: 1) the separation of the cellulose in the straws; 2) cellulose purification and molecular weight adjustment; 3) the dissolution of purified cellulose in aqueous medium. The separation process of the cellulose adopts the method of separating hemicellulose first and then removing lignin; the cellulose purification respectively adopts the method of acid or alkali treatment, and the molecular weight adjustment is finished by hydrolysis; the obtained cellulose is dissolved in alkaline aqueous solution through a pre-cooling method; and uniform and transparent cellulose solution is finally obtained. The method of the invention can realize the process of directly preparing cellulose aqueous solution by straw biomass; the obtained cellulose solution can be widely applied to cellulosic spinning, and the preparation and chemical derivatization reaction of regeneration membrane and resin.

The invention discloses an industrial flue gas purification, desulfurization and denitrification integrated device and a working method thereof. A section of pretreatment flue is additionally arranged on a flue in front of an absorption tower, and the outlet of the pretreatment flue is connected to the inlet flue of the absorption tower in a downward gradient mode; an ozone spraying device and a pre-spraying device are arranged in the pretreatment flue from the inlet in turn; and the ozone spraying device is connected with an ozone generator through a gas transmission pipeline and converts SO2 into SO3 sulfide which is freely soluble in water, the pre-spraying device absorbs SO3 which is freely soluble in water and converts the SO3 into H2SO4, namely sulfuric acid, and flue gas is cooled simultaneously, so that the aim of removing nitrogen oxide and sulfur dioxide is fulfilled. The device can efficiently remove the nitrogen oxide, has an obvious effect of removing particulate matters such as the sulfur dioxide, dust and the like, and is desulfurization and denitrification equipment with a wide application prospect.

The invention discloses polyvinyl wood-plastic composite which comprises the following components: 100 portions of wood fiber powder, 1-3 portions of stearic acid, 20-30 portions of waste polyethylene plastic, 3-6 portions of coupling agent, 4-10 portions of lubricant, 0.1-1 portion of ultraviolet resistant agent and 1-3 portions of coloring agent. The surface of the wood fiber powder is preliminarily modified by the stearic acid so that a dense hydrophobic thin film is formed on the surface of wood fiber to ensure that the wood fiber is more compatible with the polyethylene polymer, the dispersion of the wood fiber in the polyethylene polymer is promoted, the polyvinyl wood-plastic composite has excellent comprehensive performance and good processing performance, and the product made from the polyvinyl wood-plastic composite is superior to the domestic similar product in appearance quality and physiochemical performance. In addition, the formula of the polyvinyl wood-plastic composite is more environmental-friendly than the prior art, the cost spent in preparing the polyvinyl wood-plastic composite is lower, and the polyvinyl wood-plastic composite is suitable for industrial production, meets the market demand and has broad application prospect.

The invention discloses a base-containing high-entropy alloy composite and a preparation method thereof, and relates to a high-entropy alloy and a preparation method. The base-containing high-entropyalloy composite and the preparation method aim at solving the problems that the mechanical strength and the plasticity of an existing high-entropy alloy can not be improved, and the fragility is high.The base-containing high-entropy alloy composite is formed by preparing the following components of, by mass percentage, 1-20% of reinforced phase and 80-99% of base-containing high-entropy alloy matrix. The preparation method comprises the following steps that one, a raw base-containing high-entropy alloy composite is weighed; and two, the raw base-containing high-entropy alloy composite weighedin the Step one is smelted by an electric arc smelting method or an induction smelting method, and a base-containing high-entropy alloy is obtained. The yield strength of the prepared base-containinghigh-entropy alloy composite is 1200-2100 Mpa, the breaking strength is 2300-4000 MPa, and the limiting strain epsilon p (%) is 20-50%. The base-containing high-entropy alloy composite can be obtained.

The walking robot capable of being disassembled and reconstructed includes two rows of parallel food unit structures beside the frame unit, and features that it consists of food unit structures, frame unit structure and active joint unit structures, which may be separated from and combined to other unit structures easily. By means of changing the positions and number of the connecting frames, it is possible to alter the number and configuration of feet in the walking robot and to alter the structure and function of the walking robot. The present invention provides great expansion space for the structure and moving function of walking robot, can replace fault unit and composite new motion structure conveniently, and makes walking robot well fitting different motion environments. The present invention can also simplify structure and control of robot, and lower developing and using cost.

The invention, belonging to the field of high-intensity alloy steel, relates to a preparation method of a Nb, Ti alloyed low-carbon high-intensity high-plasticity twinning induced plasticity (TWIP) steel. The steel comprises the following ingredients: 0.05-0.10 wt% C, 23.5-27 wt% of Mn, 0.01-0.03wt% of Si, at most 1.0 wt% of Al, at most 0.01 wt% of P, at most 0.02 wt% of S, 1.0-2.5 wt% of Nb, 0.5-1.25 wt% of Ti, 0.02 -0.08 wt% of N, and the balance consisting of Fe and inevitable impurities. The preparation method comprises the following steps: melting the ingredients and then casting into a casting blank, heating the casting blank and then carrying out hot rolling at the opening rolling temperature of 1100-1150 DEG C with multiple passes and small press quantity to obtain the accumulated deformation degree of more than 60 % at the temperature of more than 950 DEG C, processing the casting blank in a finishing rolling mode at the temperature of 850-900 DEG C, after the hot rolling, rapidly cooling to 400-550 DEG C for reeling, carrying out cold rolling on the steel plate processed by hot rolling with the thickness of 0.5-3.0 mm, preserving the steel plate processed by cold rolling at the temperature of 650-850 DEG C for 3-30 min, and then rapidly cooling to room temperature with the cooling rate of 10-50 DEG C / s. The material prepared by the method can be applied in automobile manufacturing industry. The material has the yield strength of more than 550 MPa and the elongation rate of no less than 60 %, thereby obviously improving the ability of anti-collision and impact of automobile for the first time and greatly increasing the crashworthiness indexes.

The invention relates to a preparation method of a silk fibroin / graphene oxide high-concentration blended aqueous solution. The preparation method comprises the following steps of 1, degumming silkworm cocoons, dissolving the degummed silkworm cocoons, carrying out solution dialysis to obtain a silk fibroin aqueous solution, concentrating the silk fibroin aqueous solution until a silk fibroin concentration is in a range of 10-30wt%, and taking out the concentrated silk fibroin aqueous solution, 2, blending a graphene oxide aqueous solution subjected to ultrasonic treatment and the concentrated silk fibroin aqueous solution according to a certain ratio, 3, adding a CaCl2 aqueous solution into the mixture obtained by the step 2 to adjust a calcium ion molar concentration to 0.15-0.3mol / L, and 4, sequentially carrying out concentration to obtain the silk fibroin / graphene oxide high-concentration blended aqueous solution having silk fibroin content of 50-58wt%. The preparation method has simple processes, can be operated easily and can prepare the silk fibroin / graphene oxide high-concentration blended aqueous solution. The silk fibroin / graphene oxide high-concentration blended aqueous solution can be used for dry spinning or film coating.

The invention relates to a super-molecule complex containing amino acid and water-solubility pillar [5] arene and a preparation method for the complex. The complex is a [2] pseudorotaxane type complex in an interpenetrating structure by taking the water-solubility pillar [5] arene as a main body and the basic amino acid as a guest through bonding, wherein the molar ratio of the basic amino acid and the water-solubility pillar [5] arene is 1:1, and the structure of the complex containing water-solubility pillar arene and L-arginine is shown in the description. The complex is formed by inclusion, so that the stability of drug molecules can be improved, the drug can be released directionally, the water solubility is improved, the toxicity is lowered, etc. In addition, the complex can be used for improving the stability of unstable and easily-volatile matters such as cosmetics and fragrances, and the water solubility of the complex is also improved.

The present invention discloses a non-air conduction speech enhancement method based on a multi-band spectral subtraction. Because of the noise in the radar-based non-air conduction speech is always colored and no uniform influence on the speech signals within the whole range of the frequency spectrum, the method divides the speech frequency spectrum in a targeted manner into five sections without overlapping; simultaneously, each section is provided with an individual spectral subtraction coefficient, so as to achieve the effectiveness and pertinence of the algorithm. The embodiment proves the non-air conduction speech enhancement method can effectively compensate the weakness of low pertinence in the traditional speech enhancement method; moreover, the method has the advantages of highly efficient implementation, simple algorithm and obvious effect. Therefore, the method has higher practical value and application prospects.

The invention relates to an axial initiative-suspension three-dimensional bearing-free alternative-pole permanent-magnetic machine, which belongs to a bearing-free magnetic-suspension motor. The machine comprises two axial stator cores (1) that are provided with axial suspension controlling windings (8) that are serially connected with each other, a radial stator core (2) that is provided with a set of four-pair-pole torque controlling windings (7) and a set of one-pair-pole radial suspension controlling windings (6), a rotor core (4) that is provided with four homo-polar magnetizing permanent-magnets (3) and a rotor rotating shaft (5) that is enclosed with the rotor core (4). The motor has simple and compact structure, is free from additional axial magnetic bearing, integrates the motor rotation and axial and radial simultaneous-suspension functions of the rotor, has high integration, enlarges the suspension freedom of the bearing-free motor, simplifies the system structure, reduces the volume, the weight and the cost of the system, and has broad application prospect and important significance in different high-speed magnetic-suspension motor systems.

The present invention discloses a method and device that can measure the structure of micro-nano deep trench, can simultaneously measure the structure, depth, width and thickness of thin films of micro-nano deep trench. The infrared beam is projected to silicon surface containing deep trench structure; obtain the survey reflectance spectrum by analyzing the interference light reflect from of the interface of the deep trench structure; construct the theoretical reflectance spectrum of equivalent thin film layers stack optical model of the deep trench structure with equivalent medium theory, using simulated annealing algorithm and gradient-based optimization algorithm, fit the survey reflectance spectrum through the theoretical reflectance spectrum, then extract the parameters such as depth and width of trench, to achieve a accurate measurement of width and depth of high ratio of depth and width trench. The present device can survey the typical trench structure of dynamic random access memory (DRAM), with non-contact, non-destructive and low-cost features.

The invention discloses a background and inter-frame difference algorithm-based traffic flow and motion state detection method, which comprises the following steps of: first performing gray processing on a real-time road surface image shot by a high-definition monitoring camera; then performing background differential operation on a group of gray-processed image comprising a plurality of frames to obtain a differential image, extracting vehicle characteristic areas, and calculating a traffic flow area and the ratio of the traffic flow area to a road surface area to obtain traffic flow information; next selecting differential images processed by the steps (1) and (2) at moments K and K+1, and performing inter-frame differential operation to obtain a traffic flow area variation and the ratio of the traffic flow area variation to the road surface area to further obtain traffic flow motion state information; and finally comprehensively analyzing the traffic flow information and the motion state information, encoding different road traffic flow conditions, and predicting a road traffic flow condition. Data support can be provided for intelligent traffic lights, a foundation can be laid for the development of intelligent traffic, and the method has broad application prospect.

The invention discloses a method for preparing organic montmorillonite by using solid phase modified Ca-montmorillonite, specifically, the Ca-montmorillonite and a modifier or a mixed modifier are stirred for reaction at high temperature and modified to obtain the organic montmorillonite in solid phase powered state. The obtained organic montmorillonite can be directly applied to a plurality of polymer materials and can realize the intercalation of rubber macromolecule chains in mixing and vulcanizing process. Verified by mechanical property, properties of the obtained composite material, such as tensile strength, modulus, elongation at break and the like, are boosted and excellent. The method has the advantages of wide source of raw materials, handiness and feasibility, low production cost, no need of water or solvent and no environment pollution, with wide industrial application prospect.

The invention relates to a hybrid light field imaging system. After being focused through a main lens, an object plane is imaged on an image sensor through a variable-focus microlens array, the object plane, the main lens, the variable-focus microlens array and the image sensor are sequentially placed on the same horizontal axis, the distance from the variable-focus microlens array to the main lens and the image sensor is kept unchanged all the time, and when focal power of the variable-focus microlens array is zero, the system obtains a common two-dimensional image; when the focal power of the variable-focus microlens array is changed from zero to phi, and namely, the focal length f ' of the variable-focus microlens array is equal to 1 / phi, the system obtains a four-dimensional light field image. By changing the focal power of the variable-focus microlens array, the two-dimensional light field image and the four-dimensional light field image can be switched at will. Compared with a common light field camera, under the circumstance of not increasing the structural complexity of the system, the mode of light field imaging and the mode of common two-dimensional imaging can be achieved at the same time, and a user can select and use the imaging system conveniently.

The invention relates to a synthetic method of chabasite, which comprises the step of: adopting traditional hydrothermal synthesis to prepare chabasite through a seed crystal guiding way under a condition of not adding an organic template agent. The method avoids using expensive template agents and also avoids environmental pollution caused by high temperature firing of the template agent in a product post-treatment process. The synthetic method of the chabasite disclosed by the invention has an important significance in terms of basic research; meanwhile, as the synthetic method is economic and environment-friendly, the synthetic method also has wide application foreground.

The invention relates to a primer used for detection of pathogenic microorganism so as to detect pathogenic microorganism such as vibrio cholerae, pathogenic escherichia coli, campylobacter jejuni, Yersinia enterocolitica, parahemolytic vibrio, salmonella, shigella and Listeria monocytogenes, etc. The invention also relates to a method by using the primer to do multiple amplification detection and further relates to applications of the primer for detection of pathogenic microorganism in preparation of detection agent and further relates to kits containing the primer for the detection of pathogenic microorganism.

The present invention discloses a copper-doped iron metal-organic framework, a preparation method thereof, and an application method for activation of persulfate to treat organic wastewater. The copper-doped iron metal-organic framework is prepared by solution impregnation method, using relatively large specific surface area and more hollow structures of the iron metal-organic framework to effectively load copper ion. This method uses the unsaturated-coordinate iron active center on the iron metal-organic framework and copper ions on the load as a catalyst body, utilizing catalytic synergies of both to efficiently and continuously activate persulfate to produce sulfate radical anion for degradation of organic pollutants. This method is suitable for various organic wastewater, with high catalytic activity, good durability, easy operation and easy recovery, and activation effect of this heterogeneous catalyst is still high even after being used repeatedly, having a great application prospect in degradation of organic pollutants in water.

The invention belongs to the field of flavoring agents, and particularly relates to a preparation method for seafood soy sauce. The method includes the steps that meat of seafood products is taken through dissection, water is added, and homogenization treatment is performed, so that seafood homogenate is obtained; enzyme is added into the seafood homogenate to perform enzymolysis treatment, so that seafood enzymatic hydrolysate is obtained; inactivation treatment is performed on the seafood enzymatic hydrolysate, so that inactivated enzymatic hydrolysate is obtained; centrifugal treatment is performed on the inactivated enzymatic hydrolysate, so that a seafood stock solution is obtained; reducing sugar is added into the seafood stock solution to complete the Maillard reaction, so that a Maillard reaction product is obtained; food flavoring agents and a natural microbial growth inhibitor are added into the Maillard reaction product, so that the seafood soy sauce is obtained. The natural seafood products are adopted as the main raw materials which are reasonably proportioned and synergistically act, so that the seafood soy sauce has the peculiar flavor of the seafood and has moderate freshness, sweetness and saltiness, and the seafood soy sauce has a high aspartic acid content and a high glutamic acid content and contains rich mineral elements and vitamins.