448results about How to "With precision" patented technology

A method of multi-spectral opto-acoustic tomography (MSOT) imaging of a target tissue including a target tissue biomarker comprises the steps of illuminating the target tissue with an illumination device emitting at least one pulsed illumination pattern at several illumination wavelengths, detecting pressure signals from the target tissue biomarker with a detector device, wherein the pressure signals being produced in the target tissue in response to the said illumination, and reconstructing a quantitative tomographic image of a distribution of the target tissue biomarker in the target tissue, wherein the pressure signals are analyzed using a photon propagation model, which depends on an illuminating light fluence in the target tissue and on the illumination wavelengths, at least one spectral processing scheme, and an inversion scheme providing the tomographic image. Furthermore, an imaging device for multi-spectral opto-acoustic tomography is described.

The invention discloses a casting manufacturing method for general sand casting, which pertains to a digital-driven rapid manufacturing casting technology. The steps of the process are: the establishment of a model, the establishment of a casting system, the simulation of the casting process, the evaluation and the optimization; a molding sand with a certain proportion is mixed for preparation according to the requirements of the performance of a cast, thus preparing a sand billet; a procedure code is compiled according to the shape of a processing cavity, and the procedure code is input to a sand numerical control machine tool; the cast and a core are processed; the cast is cleared and detected; the core setting and the assembly of the cast are carried out; and the casting is carried out to form the cast. The casting manufacturing method adopts the casting and the cutting machining technologies for organic combination, which is a new cast production method. The numerical control cutting technology is adopted for processing the complicated large cast directly, which can not only eliminate the chain for manufacturing the mold, but can also improve the processing precision of the cast, reduce the thickness of the cast, improve the rigidity and reduce the weight; furthermore, the method has the green advantages of saving materials and reducing energy consumption.

The invention discloses an accessory operation hand for throat operation robot, which comprises a finger arc motion joint mechanism, an arc guide rail rotation joint mechanism, a first and second front arm rotation joint mechanism, a back arm rotation joint mechanism, a vertical position regulation mechanism, a synchronous tooth-type belt wheel mechanism, and a steel wheel mechanism. Compared with existing technique, this invention has advantage that, the mechanism is joint-type coordination structure with eight degrees of freedom to complete all motions flexibly; the double swing lever mechanism lets the robot gesture constant when the work point varies to realize the decouple of position and gesture; the double-stage thread-gear structure decreases the volume and weight; the hand coarse adjustment can position quickly, and the fine tuning mechanism makes system has the precision fit for micro-surgery.

The invention relates to a high speed multi-dimensional vibration measuring device and method based on a stripe target. The device comprises a stripe target, an imaging module, a signal control and processing module and a display module. The method includes the following steps: arranging the stripe target on a vibration structure to be measured; adopting an image module to conduct continuous imaging and recording on the stripe target; utilizing the imaging module to transmit the image of the stripe target to the signal control and processing module; utilizing the signal control and processing module to conduct Fourier transform on the stripes at the same position of the same stripe target in each frame of the image, adopting a certain peak value frequency correction method to accurate correct the peak value frequency, and then utilizing the imaging mathematical relation and the corrected peak value frequency to obtain a time domain curve with stripe target structure vibration, namely acquiring structure vibration signals through reduction; displaying an image processing result through a display module or conducting further data processing through vibration signals. By means of the device and method, vibration measurement of points, lines and faces in certain range is achieved, the measurement speed is high, and the accuracy is high.

The three dimensional measuring device used in the dental field and aimed at measuring in the absence of projection of active or structured light, includes an image-capturing device and data-processor for images. The image-capturing device is capable of simultaneously, or almost simultaneously, capturing at least two images, one of which is totally or partially included in the other one. The included image describes a narrower field than that of the other one, and has a higher accuracy than that of the other one.

The invention discloses an automatic aligning assembly system for micro members and belongs to the field of automatic control. The system has a function of assembling a part to be assembled on a basic part accurately and preventing the part to be assembled and the basic part from squeezing each other and being damaged. In the system, a control device is adopted, a motor servo system is adopted to control the rotation of a swing arm, an angle calibration device makes the rotation angle of the swing arm more accurate by testing the rotation angle, and a micro displacement worktable is adjusted to be able to rotate in six degrees of freedom by performing the corresponding calculation of images acquired by a microscope imaging system, so that the basic part and the part to be assembled can be matched accurately. In the invention, by regulating the operation of all parts through the control device, the assembly efficiency and precision are improved.

The invention discloses a preparation method of an earthquake landslide vibrating table test physical model, comprising the following steps of: A, design of the model: determining the shapes and the sizes of a bedrock and a landslide body according to the size of a vibrating table and the form of a slickenside, selecting materials for casting the model and determining the proportion; B, manufacture of a steel plate and a modeling plate: making the steel plate larger than the model, reserving a bolt hole in the steel plate and welding reinforcing steel bars, making each panel according to the sizes of the bedrock and the landslide body for sequentially connecting and fixing; C, casting and formation of a bedrock model: fixing a bedrock modeling plate in the middle of the steel plate, evenly mixing casting materials, pouring the materials into the model box for stirring and compacting, and fixing by the modeling plate after casting the casting materials on the slickenside; D, manufacture of the landslide body: after forming the bedrock, coating two layers of plastic thin films on the formed bedrock, fixing the landslide body modeling plate, and then pouring the casting materials into the modeling plate. In the invention, the preparation method is easy to carry out and simple to operate and can be used for manufacturing landslide models with different slickenside shapes, which are suitable for the test of the vibrating table.

The invention relates to a method for determining the position and the agglomeration intensity of a city core area. A city built-up area geometric centroid, a city population distribution centroid and a city road traffic accessibility centroid are determined in a map for the city built-up area, every two centroids are connected together to obtain an area, namely the city core area position; and the size of the core area corresponds to the agglomeration intensity of each centroid, that is, the smaller the size of the core area is, the higher the agglomeration intensity of the center area is. The invention provides a technology method for determining the position of the city core area, with the characteristics of integrity of theoretical basis, objectivity of data selection, scientificalness of calculation method, pertinency of space types or the like. The method used for determining the position and the agglomeration intensity of the city core area has more scientificalness, rationality and operability and provides a good platform for research on the core area.

A drive traveling mechanism of a peristaltic pipeline robot mainly solves the problem that existing pipeline internal drive travelling mechanism are lower in driving force and hard to drive robots to run for long distance in pipelines. The drive traveling mechanism of the peristaltic pipeline robot is characterized in that the drive traveling mechanism consists of two crank-and-rocker mechanisms and a worm-and-gear mechanism which share a robot body as a framework, a connecting rod of one crank-and-rocker mechanism is of an elastic connecting rod structure, and the elastic connecting rod penetrates through a rocker which swings around the robot body to be further connected with a gear rotating around the robot body so as to form one crank-and-rocker mechanism. The two crank-and-rocker mechanisms identical in structure are respectively arranged from front to back. When a motor drives the worm to drive the gear to rotate, traveling legs connected to the two crank-and-rocker mechanisms arranged from front to back realize translational motion. The two crank-and-rocker mechanisms serving as components of the drive traveling mechanism are distributed along the radial direction of the worm by 120 degrees and are driven by the same worm. The drive traveling mechanism has the advantages that traveling legs can contact with walls of pipelines sufficiently to generate higher dragging force so that the robot can travel by a long distance in the pipelines.

The invention relates to a middle packaging machine. The middle packaging machine comprises a material tidying mechanism, a packaging bag pushing mechanism, a bag suction mechanism, a bag conveying mechanism, a bag opening mechanism and an opening sealing mechanism and further comprises a flattening mechanism. The material tidying mechanism tidies supplied materials and then conveys the materials to the flattening mechanism, the materials are flattened by the flattening mechanism and then are conveyed to a packaging bag pushing way of the packaging bag pushing mechanism, a plurality of packaging bags are divided into single packaging bags by the bag conveying mechanism and then are conveyed to the position below a bag suction rod of the bag suction mechanism, the bag suction rod of the bag suction mechanism sucks up and opens the packaging bags, the packaging bags are opened by an opening claw of the bag opening mechanism, a packaging bag pushing block of the packaging bag pushing mechanism pushes the supplied materials to the packaging bags, the packaging bag pushing block of the packaging bag pushing mechanism drops out, then the opening claw of the bag opening mechanism drops out, and the opening sealing mechanism seals openings of the packaging bags and packages the bags. Raw materials are tidied and then are flattened, recovery deformation of the raw materials in the packaging process is reduced, and the defect that the packaging space is large due to deformation recovery is overcome.

The invention relates to a measurement system and a method for detecting ocular fundus blood flow velocity with high resolution. The measurement system is characterized in that a bacon light source is focused on the fundus by a human eye through a plurality of optical components to form a bacon spot; the spot is transformed into parallel light through the eye after backward reflection, and reaches a wavefront sensor through a wavefront phase corrector and a series of optical components to realize the process of self adaptive aberration correction; the imaging light source is focused on the front focus of the eye through the optical components, and is collimated by the eye into the parallel light to illuminate the retinal vascular microcirculation system; a laser speckle interferometry is formed on the surfaces of the fundus blood vessels illuminated; the interference field enters into wavefront phase corrector through the optical components and is reflected and finally focused on a photodetector through the series of optical components; a light speckle imaging process is realized. The measurement method has the advantage of enabling the whole system to overcome negative influences from the aberration of human eyes on capturing laser speckle interference field images, thus facilitating to obtain fundus velocity graph of high precision and resolution.

The invention provides a pneumatic prediction method with the combination of CFD numerical simulation and a wind tunnel test. A data fusion method is employed, firstly the result of the CFD numerical simulation is used to establish an aircraft aerodynamic performance model, wind tunnel test data is used to modify the aircraft aerodynamic performance model, the modified aerodynamic performance model is used to estimate all samples, and finally a group of data with correct trend and the numerical accuracy of a wind tunnel amount level is obtained. According to the prediction method, while the wind tunnel data accuracy of the prediction result is ensured, the overall pneumatic prediction cost of an aircraft in the development process is reduced significantly, and the requirement of the aircraft pneumatic performance prediction is satisfied to the maximum extent.

The invention provides a sub-pixel-level PCB board defect reference point detection method. The method comprises the following steps: reading in a PCB grayscale image 1; preprocessing the PCB image, wherein self-adaptive median filtering denoising is used to remove pepper-and-salt-type noises to obtain a denoised image 2, a method of maximum inter-class variance is used to carry out binary segmentation of the image to obtain a binarized image 3, and a mathematical morphology method is used to process the image to further remove small interference points and holes to obtain an image 4; using acommunicate-domain algorithm to obtain a position and a scale of a preprocessed image feature region; and then enabling reference circle extraction and positioning efficiency and precision to be improved through a sub-pixel edge detection algorithm and fitting of a least square method. Requirements of high-precision reference point extraction and positioning are effectively satisfied, defects of low precision and low speed of previous reference point positioning are overcome, and the method has the characteristics of high applicability and high accuracy.

The invention relates to a novel thin-interbedded horizontal well landing geosteering method. The horizontal well landing geosteering method includes the following steps: (1) constructing a horizontal well landing geosteering comparison model; (2) vertically correcting an LWD (Logging While Drilling) curve of a curve section; (3) carrying out error judgement and determining structure errors in real time by means of the fine comparison of the landing geosteering comparison model; and (4) determining a trajectory adjustment according to the structure errors scheme. The method realizes the transformation from conventional mark comparison to digitalized continuous comparison, and has the dual characteristics of real-timeliness and accuracy; and the digitized comparison profile of a landing section is established before drilling, the LWD curve is digitized in real time in the process of landing, and is finely compared with the profile after the vertical depth is corrected, the structure is corrected in real time, a result is judged according to the structure errors, the trajectory design is updated in real time, and thereby accurate landing can be realized.

The invention discloses a heavy-duty truck anti-rollover warning system based on sensing load. Suspension displacement is received by a displacement sensor; an acceleration signal is received by a transverse acceleration sensor; the two signals are processed correspondingly; the processed signals, in combination with a mechanical model calculated, are subjected to substitution to calculate valuesof left front, left rear, right front and right rear support reactions; the values are introduced into a lateral load transfer ratio LTR model to calculate real-time lateral load transfer ratio. Changes in suspension spring load pressure can be measured in real time so as to obtain the up-to-date position of a center of mass; magnitudes of support reactions at four wheels are acquired in real time; the magnitudes are introduced to the LTR model to calculate lateral load transfer ratio that has good accuracy and timeliness, and measured value and operating state delaying is relieved; dynamic load is measured by the heavy-duty truck anti-rollover warning system based on sensing load and meets the characteristics of a heavy-duty truck, high center of mass and low stability in turning.

The invention discloses a 3D printing device and method of tissue engineering scaffolds. The device comprises a printing module, a spray-coating module, a cell implantation module, a printing platform and a temperature control module. The printing module is a squeezing printing device composed of one or more sprayer devices, and is used for squeezing printing of the tissue engineering scaffold with a three-dimensional macrostructure. The spray-coating module is a spray-coating device provided with one or more nozzles, and is used for forming the tissue engineering scaffold with a two-dimensional macrostructure. The cell implantation module is an ink jet printing device with one or more nozzles and used for spraying micro-droplets containing seed cells so as to complete implantation of cells and growth factors corresponding to the tissue engineering scaffolds. The printing platform is located under the printing module, and the tissue engineering scaffolds are formed on the printing platform. The temperature control module is used for providing an environment-controllable printing environment. The tissue engineering scaffolds which are made of various materials, formed at a time through various technologies are complex in structure can be obtained.

The invention discloses a method for measuring the migration depth and the apparent migration coefficient of chloride ions in concrete. The method comprises the following steps: selecting a cylindrical test piece by performing core-drilling on a concrete structure to be detected; horizontally arranging the selected cylindrical test piece, splitting the cylindrical test piece along the direction parallel to a penetration surface until the test piece is completely split; spraying 0.05 to 0.2N silver nitrate solution by a vertical section spraying method, wherein the spraying amount is 200 to 400 ml / m<2>, and the ambient temperature is controlled to be 20 to 25 DEG C; after the silver nitrate solution is sprayed for 10 to 40 minutes, drawing a color-changing boundary clearly by using a fountain pen, testing a color-changing depth value every 0.5 to 2cm, and averaging the tested color-changing depth values; according to the obtained color-changing depth value, the Fick's second law, and the water-cement ratio of the concrete, selecting the concentration of the chloride ions at the color-changing boundary, and calculating an apparent diffusion coefficient, wherein the limit chloride ion concentration of the corrosion of a reinforcing steel bar can be used for calculating the remaining life of a detected object.

The device for the pixel-by-pixel photoelectric measurement of a planar measured object includes projection means for the imaging of the measured object onto a two-dimensional CCD image sensor, filter means provided in the imaging light path for the wavelength selective filtering of the measuring light impinging on the image sensor, signal processing means for the processing of the electrical signals produced by the image sensor and for the conversion thereof into corresponding digital raw measured data, as well as data processing means for the processing of the raw measured data into image data representing the colors of the individual image elements of the measured object. Furthermore, illumination means are provided which include a Fresnel lens, which illuminate the measured object with at least one essentially parallel light bundle under an angle of incidence of essentially 45 DEG + / -5 DEG . The projection means which include at least one tele-lens constructed as a Fresnel lens, are constructed as tele-centrical imaging optics, which image each point of the measured object under essentially the same angle of observation of essentially 0 DEG and with essentially the same aperture angle of essentially maximally 5 DEG onto the light converter element array. The data processing means carry out extensive correction measures.

The invention discloses an SARS-CoV-2 antibody detection method. The SARS-CoV-2 antibody detection method comprises the following steps: carrying out horseradish peroxidase labeling on recombinant SARS-CoV-2Nucleocapsid protein, meanwhile, selecting an anti-SARS-CoV-2 antibody or a dominant antibody to coat the enzyme-linked plate and sealing; according to a competitive ELISA principle, simultaneously adding a to-be-detected sample and an enzyme-labeled antigen into a test hole of an enzyme-linked plate, performing incubation at room temperature, thoroughly washing the plate, then adding a substrate TMB, performing color development in a dark place, finally, terminating the reaction, measuring a light absorption value at 450 nm, and evaluating the titer of the antibody in the sample by calculating the antibody inhibition rate. According to the method disclosed by the invention, relatively conservative N protein in SARS-CoV-2 and a specific antibody of the N protein are selected as rawmaterials. Compared with a traditional antibody detection method, the detection of the Anti-SARS-CoV-2 specific antibody is completed more quickly, more conveniently and more sensitively, and the method has specificity, sensitivity, accuracy and precision and has important application prospect and value.

The invention discloses a metal ring machining device and a using method thereof. The metal ring machining device comprises a first pressing plate, a first adjusting bolt, a first hold-down bolt, a first U-shaped guide rail, a feeding guide rail, a fixed plate, a cutter, a metal wire to be machined, a bending roll wheel, a rotating block, a compass, a working platform, a pointer, a pointer fastening screw, a permanent roll wheel, a second adjusting bolt, a second pressing plate, a second hold-down spring, a second U-shaped guide rail, a driven gear, a driving gear and other parts. When the metal ring machining device is used, a corresponding radius numerical value is marked on the compass, and various annular metal rings or arc-shaped metal rings with different diameters can be automatically formed by only changing the position of the pointer, therefore, the metal ring machining device is more intuitive and feasible in use and operation during production. The metal ring machining device has the advantages of simple mechanical structure and control mechanism, high production efficiency and low working intensity of operators, ensures that automatic control and mechanical production can be realized easily, and meets the requirement for common production, and the product has a certain precision. The metal ring machine device has the advantages of simple structure, convenience for maintenance and low maintenance cost.

The invention provides an automatic box packing machine for cylindrical batteries. The machine comprises a feeding device, a pushing device, a battery box lifting device and a translating device which are arranged on a rack and controlled by a control cabinet, the batteries in need of box packing are conveyed and fed in via the feeding device, the battery box lifting device controls battery boxes to ascend and descend, the batteries in need of box packing are pushed into the battery boxes through the pushing device, and the translating device translates to deliver the battery boxes filled with the batteries. The whole box packing process is conducted under control of the control cabinet and is controlled by only one person, automatic production and automatic box packing are realized, and production efficiency is improved greatly.

The invention relates to the technical field of the spacecraft attitude control and provides a maneuvering unloading pitch axis angular momentum method by satellite pitching axis attitude. The maneuvering unloading the pitch axis angular momentum method by the satellite pitching axis attitude comprises step one, measuring and confirming the satellite pitch axis angular momentum hun-y needs to be unloaded; step two, confirming gravity gradient torque the satellite bears according to satellite rotational inertia; step three, estimating time tend needed by the maneuvering thetam of the satellite pitch axis and angular momentum humanu which is accumulated by the gravity gradient torque on the pitch axis in the maneuvering process; step four, solving an angle thetam the satellite needs to be maneuvered according to the hun-y and the humanu; step five, calculating time thold the angle thetam needs to be kept according to the hun-y, the humanu and the confirmed thetam in step four; and step six, confirming satellite rotational inertia distribution forms which guarantee that the satellite can perform maneuvering with enough angular momentum space. The maneuvering unloading the pitch axis angular momentum method by the satellite pitching axis attitude is applied to the technical field of the spacecraft attitude control and solves the problems that devices are utilized to unload in the prior art and the costs of unloading devices are high.

A method is provided for detaching a section (4) from a planar glass element (2) along an intended parting line (21) which divides the glass element (2) into a section (4) to be detached and a main part (3) to be left, wherein - filamentary damaged portions (20) are created in the volume of the glass element (2) alongside one another along the parting line (21), and - the damaged portions (20) arecreated by laser pulses (12) of an ultrashort pulse laser (10), wherein the material of the glass element (2) is transparent to the laser pulses (12), and - the laser pulses (12) create a plasma in the volume of the glass element (2), said plasma causing the filamentary damaged portions (20), and - the striking points (13) of the laser pulses (12) on the glass element (2) are moved over the surface (22) thereof along the parting line (21), and - after the introduction of the filamentary damaged portions (20) arranged alongside one another along the parting line (21), the glass element (2) isheated in the region of the main part (3) and made to expand and / or is cooled in the region of the section (4) and made to contract, such that the section (4) detaches from the main part (3) along theparting line (21) at the filamentary damaged portions (20) located alongside one another, wherein the section (4) and the main part (3) are each retained as whole parts.

The invention relates to a long telescopic soot blower used for removing soot and slag on the surfaces of heating furnaces in the petrochemical industry, heating furnaces in the power industry, and the like. The soot blower comprises a box body (4), a moving cart (3), an outer soot blowing pipe (5), an inner blowing pipe (12), a steam inlet valve (1) and an operation mechanism (2), wherein the moving cart (3) comprises an electromotor (303) and a double-output-shaft speed reducer (304); the other output shaft of the double-output-shaft speed reducer (304) is provided with a main driving disk (305) and a speed reducer chain wheel (306); the main driving disk (305) is provided with a semicircular annular slot (309), and a pin (308) is embedded in the slot (309) and fixedly connected with the speed reducer chain wheel (306); the outer soot blowing pipe (5) is horizontally arranged in the box body (4), and the outer edge of the outer soot blowing pipe (5) is provided with a soot blowing pipe chain wheel (501); and the soot blowing pipe chain wheel (501) is connected with the speed reducer chain wheel (306) through a chain. In the invention, the outer soot blowing pipe has no blowing dead angles; the pressure of fillers in a filler box is stable; the matching in the steam inlet valve is precise; and the pressure of a steam outlet can be regulated.

The invention relates to a higher vocational college innovation teaching course outline development system which is formed by a course outline development system main operation server, a campus wireless network coverage device, a mobile phone, a basic course information module, a teacher information module, a course description module, a course teaching object module, a core competence weight module, an ability indicator weight module, a credit distribution weight module, a course content outline module, a teaching method module, a learning evaluation module, an evaluation manner module, a progress chart module, course analysis and evaluation, learning effect analysis, core ability analysis, and other content modules; the system can show the course outline content of the course, supports directional push of the course outline to students, supports mobile phone APP terminal and web terminal, realizes modernization of the teaching content, starts from the receptivity of the students, does not purchase innovation and quantity blindly and unilaterally, and has the characteristics of flexibility, interactivity, stability, consideration for the present ability of the students, and accuracy.

The invention discloses a Voice Coil Motor (VCM) magnetic sheet assembly device. The device comprises a bench, a feed system, a feeding system, a carrying system and a control system, wherein a feeding hole is arranged on the bench, the feed system which is used for feeding a magnetic sheet to the feeding hole is arranged at the position of the inside of the bench, which corresponds to the magnetic sheet installation position, the feeding system which is used for automatically assembling the magnetic sheet fed by the feed system to motors to be assembled is arranged at the position of the upper portion of the bench, which corresponds to the feeding hole, the carrying system which is used for fixing the motors to be assembled is arranged at the position of the lower portion of the bench, which corresponds to the feeding device, and the control system is used for controlling the working of the feed system, the feeding system and the carrying system. The feeding system which moves vertically is matched with a magnetic sheet feed system, magnets sheets which are required to be assembled are assembled to the carrying system for fixing the motors to be assembled one time, the carrying system is set to move along an X axis and a Y axis, a plurality of motor fixing groove for fixing motors to be assembled are fixedly arranged on a fixture carrier, a plurality of motors can be assembled continuously, and the production efficiency and the pass percentage are improved.

The invention discloses a cerebral apoplexy early warning system and method, and relates to the technical field of data processing. The cerebral apoplexy early warning system comprises a cloud side server, a user terminal, a sign monitoring terminal and a medical care terminal. The cloud side server receives the physical sign data and the equipment identifier transmitted by the sign monitoring terminal and then compares the physical sign data with the preset physical sign range and determines user information according to the equipment identifier. When the physical sign data are out of the preset physical sign range, the cerebral apoplexy early warning prompt is transmitted to the user terminal associated with the user information so that the corresponding measures can be timely taken forthe abnormal situation of the user body. Besides, the related medical institutions can acquire the cerebral apoplexy early warning prompt of the user by accessing the cloud side server through the medical care terminal so as to provide the emergency intervention scheme or the first aid service to the user. According to the cerebral apoplexy early warning system and method, accurate early warning for the situation of cerebral apoplexy can be performed for the user so as to guarantee the life safety of the user.

The invention provides a method and system for preventing remote control type Trojan viruses. The method includes the steps of capturing data packet flow in a network, traversing the captured data packet flow through the characteristics in a preset characteristic rule base, judging whether matching characteristics exist or not, handing over the data packet flow to a subsequent malicious code probe to be processed if the matching characteristics exist, continuing judging the data packet flow if no matching characteristics exist, removing a known URL in the captured data packet flow, judging whether the data packet flow is malicious flow or not, conducting stopping and giving an alarm and a prompt if the data packet flow is malicious flow, and releasing the data packet flow if the data packet flow is not malicious flow. The invention further provides the corresponding system. By means of the method and the system, the remote control type Trojan viruses can be effectively prevented from running, malicious flow can be prevented from in and out, and a computer of a user is protected against damage.

The invention discloses an LED light control device for plant illumination light source light distribution and a control method. The device comprises a power supply module, a control module, a driving module and a light supplementation module, wherein the power supply end of the power supply module is connected with the power end of the control module; the driving power supply end of the power supply module is connected with the power end of the driving module; the driving end of the driving module is connected with the power end of the light supplementation module; the control end of the light supplementation module is connected with the light supplementation control end of the control module; the driving control end of the control module is connected with the control end of the driving module; the driving module comprises a red light driving unit and a blue light driving unit; the red light driving unit drives a red light supplementation module in the light supplementation module; and the blue light driving unit drives a blue light supplementation module in the light supplementation module. The red light driving unit and the blue light driving unit are controlled respectively via the control module, intensity and illumination time of light emitted by the light supplementation module can be adjusted, and growth of the plant is promoted.

The invention discloses a blockchain threat intelligence analysis method and a system based on big data integration. The method comprises the following steps: S1, monitoring a blockchain public chainand alliance chain node, automatically collecting new synchronization data of the node when monitoring that the blockchain public chain or alliance chain node has new synchronization data, and sendingthe collected data to a big data integration module; S2, arranging and classifying the acquired data; S3, obtaining an analysis strategy, analyzing the collected data according to the analysis strategy, obtaining a corresponding analysis result through matching, and sending the analysis result to an analysis result set; and S4, performing comprehensive analysis on the analysis result obtained according to each analysis strategy, and performing threat early warning reminding according to the comprehensive analysis result. Through the method and the device, the data flow direction of the blockchain can be analyzed in advance, the possible threat event is early warned, and accurate positioning is performed at the first time after the threat event occurs.