184results about How to "Guaranteed fidelity" patented technology

The invention provides an in-situ preserving coring system and method, and belongs to the field of in-situ mechanical research of rock masses. The coring system comprises a coring drilling tool and rock core preserving equipment, the coring drilling tool comprises a drill bit and a drilling tool body connected with the drill bit, a pressure testing device is arranged on the portion, close to the drill bit, of the side wall of one end of the drilling tool body, and a temperature testing device and a humidity testing device are arranged above the pressure testing device; the rock core preserving equipment comprises an equipment body, a core storage tube capable of freely sliding in the equipment body in the axial direction is arranged in the equipment body, the core storage tube is a hollow cavity and is used for storing rock cores subjected to drilling, the outer wall of the equipment body is provided with a pressure preserving device, a heat preserving device and a humidity preserving device which are connected with the core storage tube respectively, and a ball valve connected with the front end of the equipment body is further included. The ball valve is switched on, rock core drilling is conducted, the drilled rock cores gradually enter the core storage tube along with drilling of the coring drilling tool, after rock core drilling is completed, the ball valve is switched off, and the drilled rock cores are stored in the sealed core storage tube. The in-situ preserving coring system and method are suitable for mechanical property research of the rock masses.

The invention discloses an indoor truth-preserving sampling, sample storage and analysis device based on deep well sampling. The device comprises a high-pressure gas source system and a truth-preserving sampling system which is connected with the high-pressure gas source system and used for collecting a formation fluid sample, wherein the truth-preserving sampling system is respectively connected with an immediate decompression analysis system for performing online analysis on the formation fluid sample, a truth-preserving sample storage system for performing undisturbed preservation on a fluid in the formation fluid sample and a chemical online analysis system for monitoring and analyzing the formation fluid sample, and the truth-preserving sampling system, the immediate decompression analysis system, the truth-preserving sample storage system and the chemical online analysis system are connected with a waste water and waste gas treatment system. The invention further comprises an indoor truth-preserving sampling, sample storage and analysis method based on the deep well sampling. The method disclosed by the invention has the advantages of easiness in operation, and simplicity and convenience in operation; and modular integration is adopted, all modules are independent mutually, mutual interference of various samples can be avoided, and multi-formation and multi-position simultaneous sampling can be further realized.

The invention provides a pair of gloves used in interaction control of virtual reality and augmented reality. Each of the pair of gloves used in the interaction control of the virtual reality and the augmented reality comprises: a glove body; and a plurality of luminous units embedded on the glove body and used for an identification device to track and position the glove body according to the luminous units. According to the pair of gloves, accurate identification and tracking of hand actions of a user are realized, the fidelity and immersion of a game are ensured, and the user experience is improved.

The invention belongs to the field of biomedical engineering and medical imaging, and relates to a fourier-wavelet regularization-based coaxial phase contrast image restoration method. The method comprises the steps: collecting a plurality of images of a tool edge instrument, and acquiring tool edge section curves of each image at different positions to obtain an integrated line spread function h(x) of a coaxial phase contrast imaging system; placing an imaging object, and collecting images to obtain an imaging result y(x); calculating fourier transformation of the y(x) and the h(x) to obtain Y(omega) and H(omega); obtaining fourier regularization evaluation of an ideal phase contrast imaging result through fourier inverse transformation, and effectively evaluating the wavelet coefficient signal wj(x) of the ideal phase contrast f(x); and conducting Db6 orthogonal wavelet transform on the fourier regularization evaluation, and carrying out regularization to obtain wavelet inverse transformation and obtain an evaluation result. According to the fourier-wavelet regularization-based coaxial phase contrast image restoration method, the contrast of the phase contrast image under deterioration effect can be effectively improved, the fidelity of the restoration image can be ensured, and the image restoration constrast and signal to to noise ratio can be improved.

The invention, which belongs to the image display field, discloses a method and apparatus for improving an image quality. After color space conversion is carried out on an original image, a current environment light intensity is detected; when the current environment light intensity is lower than a preset threshold value, contrast enhancement processing is carried out on the image to obtain a first output image; under the circumstance that the current environment light intensity is not less than the preset threshold value, a constraint condition is constructed for the image; and according to a solution to the constraint condition, polynomial processing is carried out on the image to obtain a second output image. Compared with the prior art, the obtained first output image or second output image has the high image quality, so that a defect of a poor display effect of display equipment under ambient light can be overcome. Meanwhile, loss compensation and contrast and brightness adjustment are added during the processing process, thereby guaranteeing the fidelity of the displayed image and improving the watching experience of the human eyes.

The invention provides a vibroseis slip sweep data acquisition and processing method and device. The method comprises the steps that vibroseis vibration signal record data and all records of ground force signal data acquired based on predetermined sweep signal, the distance between vibroseis groups and slip time parameters are acquired by the preset vibroseis slip sweep acquisition method; data division is performed on the vibroseis vibration signal record data according to vibroseis group vibration starting time so that the single shot vibration record of the shot point corresponding to each vibroseis group is acquired; and deconvolution processing is performed on the single shot vibration record by using all records of ground force signal data so that the high-fidelity seismic single shot data record can be acquired. With application of the vibroseis slip sweep data acquisition and processing method and device, the problem that the high-fidelity seismic data cannot be acquired by the vibroseis seismic exploration correlation method slip sweep efficient acquisition technology can be solved so that the fidelity of the original seismic exploration data can be guaranteed and the construction efficiency of field production can also be guaranteed.

The invention provides piezoelectric-triboelectric hybrid type self-driven electronic skin. The skin characterized in that the skin comprises a triboelectric sensing part and a piezoelectric sensing part arranged at the lower side of the triboelectric sensing part; the triboelectric sensing part comprises a flexible transparent porous electronegative film and a first flexible conductive fabric electrode arranged at the lower side of the flexible transparent porous electronegative film; the piezoelectric sensing part comprises a piezoelectric nanofiber film, a second flexible conductive fabricelectrode and a third flexible conductive fabric electrode, wherein the second flexible conductive fabric electrode and the third flexible conductive fabric electrode are arranged at the upper side and lower side of the piezoelectric nanofiber film respectively; the piezoelectric nanofiber film is obtained through an electrostatic spinning technology; and the flexible transparent porous electronegative film is of a porous structure prepared by taking a lotus leaf as a template. The multifunctional flexible self-driven electronic skin of the invention does not need to be driven by an external additional power source, and can ensure the accuracy of sensing and the wearing comfort of a human body.

A method and associated system for designing a biomechanical interface of a device contacting a biological body segment of a subject includes forming a quantitative model of the biological body segment from subject specific data, conducting a biophysical analysis, such as a finite element analysis, to thereby establish a relationship, such as a functional relationship, between the quantitative model and at least one feature of the biomechanical interface contacting the biological body segment, and applying the relationship to the at least one feature of the biomechanical interface contacting the biological body segment to thereby obtain an interface design for the mechanical interface of the device. The subject-specific data can include geometry of the biological body segment and the at least one feature can be associated with physiological benefit of the biological body segment.

The invention discloses a method for manufacturing force responsive photonic crystal materials based on inverse compressing nano-forming technology. Electron beam lithography technology and reactive ion etch technology are employed. A nanometer magnitude pattern is etched on a rigid template to serve as a mother template according to preset photonic crystal structure parameters. An elastic polymer soft template with an inverse nanometer magnitude pattern can be made and serves as a secondary template. With highly elastic gel as filling material and visco-elastic polymer as moulding material, the pattern on the mother template is copied on to the visco-elastic polymer in a high fidelity way through inverse compressing, so as to produce nanometer magnitude and structure-controllable force responsive photonic crystal. Compared with the prior art, the method has the advantages of simple process, short flow, easily controlled technological parameters, repeatedly usable templates, high product precision level, stable and reliable product quality and low cost.

The invention discloses a household electrical appliance control and household safety system for the blind and a control method thereof. The system comprises a system main control module, a handheld control panel, a wireless transmitting module, an electrical appliance switch state control module, a sensor module, a signal processing module, a voice automatic recognizing module, a code learning module, a voice broadcasting module, a household safety module and a power supply module. For an electrical appliance with a remote control, the remote control, the code learning module and the system main control module are connected so that the control panel is controlled through buttons. For an electrical appliance with no remote control, the handheld control panel sends orders to the system main control module through the pressing buttons to control the switch of the electrical appliance. The voice automatic recognizing module also does corresponding control. The sensor module acquires the environmental conditions inside a room, and infrared detection is available to check the opening and closing of a door and a window. With that, the check results are delivered to the blind through the voice broadcasting module. These designs enable the blind to conduct real time check on the household electrical appliance safety. With high safety performances and good operability, the system makes the blind stay safe at home.

The invention discloses a method for preparing a force response photonic crystal material on the basis of a nano molding technique. The method comprises the following steps: etching a main template according to pre-designed photonic crystal structure parameters, preparing an elastic polymer soft template with inverse nano-grade patterns, and by taking the soft template as a secondary template, 'copying' the patterns on the main template into a high -elasticity gel matrix layer in a 'high-fidelity 'manner in a mode of three-step pattern transfer so as to fix the position of crystal lattice of photonic crystal; filling the crystal lattice with a viscous polymer so as to obtain a single-layer high-elasticity gel-viscous polymer composite layer with a photonic crystal structure, and implementing a layer-by -layer embossing method,thereby obtaining the force response photonic crystal material. Compared with the prior art,the method disclosed by the invention has the characteristics that the process is simple, the procedure time is short, process parameters are easy to control, the templates can be repeatedly used, and a product is high in precision grade, stable and reliable in quality and relatively low in cost, and the like.

The invention provides a method and device for adjusting a video playing interface. The method and device are used for a smart television. The method includes the steps of obtaining a target network video according to a received actual playing address of the target network video, and stretching an obtained display scale of the target network video according to a preset screen ratio of the smart television so that the target network video can be played at the preset screen ratio. According to the method, after the target network video is selected, when the target network video is played, the target network video is automatically stretched and played according to the screen ratio of the smart television, the vividness of images is guaranteed, a user does not need to operate manually, operations are simple and user experience is improved.

The invention belongs to the technical field of digital twinning, and discloses a method for driving virtual model simulation by using historical data based on the digital twinning technology, and the method comprises data storage and data calling. The data storage method comprises the following steps: creating a historical data storage database in a time sequence type database, and creating a data table for storing different types of data in the historical data storage database; and reconstructing data collected from equipment on a production line into a data format supported by a time sequence type database, and storing the data to a historical data storage database. The data calling method comprises the following steps of setting data calling initial time Tstart, a digital twin platform data refresh cycle and a data calling instruction operation cycle according to the requirements of the digital twin platform; calculating the starting time and the ending time of calling data according to the Tstart, and constructing a data calling instruction; and the digital twin platform operates the data calling instruction, reconstructs the called data, and drives the virtual model according to the reconstructed data.

The invention discloses a coastal zone hyperspectral image distributed lossy coding and decoding method based on a region of interest, which belongs to the field of image processing. According to spectral correlation of the hyperspectral image, a spectral frame is divided into a plurality of spectral groups, and each spectral group comprises one key frame and a plurality of WZ frames; after region of interest extraction is carried out on the key frame of each spectral group, JPEG-LS lossless coding and decoding are carried out on the region of interest of the key frame, SPIHT-based coding and decoding are carried out on a background region, and compressed sensing-based coding and decoding are adopted for the WZ frames of each spectral group. The method of the invention has the advantages that the coding complexity is low, the error resilience is strong, the quality of a bit stream can be graded and the like.

The invention discloses an entangled photon pair transmission rate estimation method for satellite-ground downlink, which mainly solves the problem that the transmission rate estimation method in theprior art is not clear and comprehensive. The invention realizes the following steps: (1) transmitting entangled photon pairs through an atmospheric channel; (2) measuring the distance between satellite and ground; (3) estimating the photon transmission rate under turbulence; (4) calculating the transmission rate of the single photon satellite-ground downlink; and (5) estimating the transmission rate of entangled photon pairs. The invention comprehensively considers the influence of atmosphere, system and turbulence, estimates the transmission rate of entangled photons by adopting three groupsof measurement bases and two groups of measurement bases receiving and counting methods at two ground stations respectively, and improves the estimation accuracy of the transmission rate. It can be used to measure the Bell state in the process of quantum communication to ensure the fidelity of transmission.

The invention discloses a virtual fitting method. The method comprises the following steps: making a three-dimensional model of a garment according to a two-dimensional image of the garment; fitting the three-dimensional clothing model to the three-dimensional standard human body model; obtaining a two-dimensional image of a target human body; inputting the obtained three-dimensional human body parameters into a standard human body model for fitting; matching the clothing three-dimensional model to the three-dimensional human body model; and the three-dimensional human body model is basically consistent with the target human body posture. The invention provides a method for obtaining accurate human body three-dimensional model parameters by analyzing a whole human body photo through a deep neural network, and human body modeling can be quickly performed only by one common photo; meanwhile, the three-dimensional garment model is obtained by processing the two-dimensional garment picture in advance, the user does not need to participate in the background work and only needs to select the garment style which the user wants to virtually try on, the system can automatically match the corresponding garment model, and the authenticity and the reduction degree are kept through a series of methods.

The invention discloses enterovirus type 71 (EV71) infectious clone and a construction method thereof. The construction method of the EV71 infectious clone comprises the following steps of: extracting RNA serving as a template from an EV17 strain, and amplifying three fragments L1, L2 and L3 by using the following three pairs of primers respectively; connecting the enzyme digested fragment L1 and a eukaryotic expression vector, transforming the connected fragment L1 and eukaryotic expression vector to escherichia coli to obtain a sub-cloned plasmid PL1, performing enzyme digestion, connection and transformation on the plasmid PL1 and the fragment L2 to obtain a plasmid PL2, and performing enzyme digestion, connection and transformation on the plasmid PL2 and the fragment L3 to obtain a full genome cDNA cloned recombinant plasmid containing the fragments L1, L2 and L3; and transfecting the recombinant plasmid to host cells of African green monkey kidney cells to obtain the EV71 infectious clone.

The invention relates to an electromagnetic type vibroseis parallel stimulation collecting and mixing record separating method. The method comprises the steps that focus points and an observing system are designed according to a common single focus collecting method, and the number n of vertical stacking times is determined through the experiment to serve as the number of focuses of parallel stimulation; n electromagnetic type vibroseises are arranged on the n focus points along a measuring line, the initial phase and stimulation delay encoding is carried out on scanning signals, the n focuses can be stimulated n times nearly at the same time, and n mixing records are obtained; the n focuses are integrally moved to the subsequent n focus points along the measuring line, and parallel stimulation continues to be carried out. Compared with an existing common single focus collecting method, if n focus parallel stimulation is utilized, a same number of focus points are collected, the work finishing time is 1/n of the working finishing time of the common single focus collecting method, and in other words, the production efficiency is improved by n times. Production efficiency is greatly improved, effective signals in the obtained single focus records are clear, and waveforms are consistent. The vibroseis earthquake exploring working efficiency can be improved, and the construction cost of the field earthquake exploring is greatly reduced.

The invention discloses an anti-counterfeiting packaging box. The anti-counterfeiting packaging box comprises an upper cover and a lower shell which are matched for use; one end of the upper cover is hinged to one end of the lower shell; the upper cover can rotate by taking a hinge end as a pivot so as to be opened or closed vertically; the packaging box comprises an intelligent lock and a mechanical lock; the intelligent lock is controlled to unlock through input information. When the anti-counterfeiting packaging box is used, the fidelity of a cargo is effectively ensured through dual lock control; anti-counterfeiting is realized; the economic benefits and social benefits are great.

The present invention discloses a preparation method of force responsiveness nanometer magnitude photonic crystal materials. Through adoption of the electron beam lithography technology and the reactive ion etch technology, a rigid template with a nanometer magnitude pattern is etched and taken as a filling template according to photonic crystal structure parameters designed in advance, high-elastic gel with good mechanical property is taken as matrix materials, and a visco-elastic polymer is taken as filling materials; and through the mode of the filling template, the photonic crystal pattern designed in advance in the high fidelity mode is transferred into the visco-elastic polymer, and the nanometer magnitude and structure controllable photonic crystal materials with force responsiveness are prepared through spin coating, stacking and the like. Compared to the current technology, the preparation method of force responsiveness nanometer magnitude photonic crystal materials is simple in technology and short in flow, technology parameters are easy to control, the template can be reused, the precision of products is high in level, the quality is stable and reliable, and the cost is low, etc.

The invention provides an ultrathin loudspeaker, which comprises a basin stand, wherein the basin stand is internally provided with a magnetic circuit system and a vibration system, the magnetic circuit system is connected with the vibration system, a magnetic gap is formed in the magnetic circuit system, and the vibration system comprises a voice coil pipe, a damper, a spherical vibrating diaphragm and a folding ring; And the damper and the spherical vibrating diaphragm are coaxially arranged and located above the folding ring at an interval of a certain distance; the damper is provided withan abdicating hole at the axis, the abdicating hole is fixedly connected with the side surface of the spherical vibrating diaphragm, and part of the spherical vibrating diaphragm is exposed. The ultrathin loudspeaker solves the problems that a loudspeaker in the prior art is large in size and heavy, and the tone quality and the power of the ultrathin loudspeaker are difficult to guarantee. The invention further provides a sound box assembled with the loudspeaker and an electronic product.