331 results about "Ir reflection" patented technology

The invention discloses reflection-heat insulation dual-functional aluminum oxide ceramic and a preparation method and application thereof.The method comprises the steps that after surface silanization treatment is conducted on nanoscale hollow oxide filler, surface-modified nanoscale hollow oxide filler is prepared; and then adding the surface-modified nanoscale hollow oxide filler into a high-molecular polymer and a mixed polar solvent to obtain the thermal insulation coating. The method comprises the following steps: coating the surface of aluminum oxide ceramic with a heat insulation coating to form a primary coating, and carrying out gradient heating curing to obtain aluminum oxide ceramic with a functionalized heat insulation coating; and coating the surface of the thermal insulation coating functionalized aluminum oxide ceramic with an infrared reflection coating, and carrying out annealing treatment in a nitrogen atmosphere to prepare the reflection-thermal insulation dual-functionalized aluminum oxide ceramic. By constructing a double-layer composite structure, enhancing interface thermal resistance through chemical bonding, directionally distributing the nanofiller and designing a low-radiation layer structure, heat conduction and radiation heat transfer of the aluminum oxide ceramic-based material are synergistically reduced, and the high-temperature heat insulation performance of the aluminum oxide ceramic-based material is improved.

The invention discloses a hot-pressing control method and system for a flexible circuit board, and particularly relates to the technical field of flexible electronic manufacturing process control, and the method comprises the following steps: calculating a heat conduction equilibrium coefficient through collecting the temperature and heat flux density data of each region in the flexible circuit board, and achieving the real-time evaluation of a heat diffusion characteristic; in combination with an infrared scanning mode, acquiring reflectivity data, analyzing dynamic change of the reflectivity data along with time, and identifying an abnormal region in which coating residues possibly exist; further comparing the position relationship between the thermal diffusion anomaly and the infrared reflection anomaly, screening a space overlapping region as a high-risk point, and executing a preset regulation and control strategy; according to the method, the heat conduction equilibrium coefficient is calculated by collecting heat flow and temperature data, the coating residue abnormal area is recognized by combining infrared reflectivity time sequence characteristics, the high-risk area is screened based on the space overlap ratio for dynamic regulation and control, accurate recognition, differential control and closed-loop optimization of hot pressing defects are achieved, and the hot pressing quality and consistency are improved.

The invention provides laminated glass and a vehicle. The laminated glass comprises a first glass plate, an infrared reflection layer, a bonding layer, a second glass plate and a low-transmittance heat insulation layer, the low-transmittance heat insulation layer comprises at least one absorption function layer, the visible light transmittance TL1 of the laminated glass is smaller than or equal to 15%, and the transmission index A of the laminated glass is larger than or equal to 10; the transmission index A is equal to TL1 / (TE * TL3). According to the laminated glass, the low-transmittance heat insulation layer and the infrared reflection layer are used together, so that the laminated glass has relatively low visible light transmittance TL1 and relatively low radiance e, and a deep colored PVB (Polyvinyl Butyral) membrane in related technologies can be omitted, so that the laminated glass has the effects of low cost, simplicity in manufacturing and production and privacy protection; the laminated glass has a lower total solar transmittance TTS, so that the laminated glass can better block heat, a sunshade curtain in a vehicle is omitted, and a larger height space in the vehicle is obtained.

The invention relates to the related technical field of warm-keeping fabrics, in particular to a hollow warm-keeping yarn fabric which is formed by weaving hollow fibers in a staggered plaid structure, the staggered plaid structure is formed by interweaving warp yarns and weft yarns in a spiral winding mode, and micro air chambers are formed at the interweaving points of the warp yarns and the weft yarns. The hollow fiber comprises a core layer and a sheath layer, the core layer is of a plum blossom petal-shaped multi-cavity structure formed by ultra-high molecular weight polyethylene, cavities are separated through radial connecting bridges, and the sheath layer sequentially comprises a heat conduction enhancing layer, an infrared reflecting layer and a dynamic temperature adjusting layer from inside to outside. Dynamic heat and humidity collaborative management, intelligent temperature response, radiation heat management and structural stability are effectively improved, the heat retention property and moisture permeability of the fabric are improved, self-adaptive adjustment can be achieved according to the body temperature of the human body, the heat radiation transmission efficiency is enhanced, the super-hydrophobic interface modification and covalent bonding technology is adopted, and the thermal radiation performance of the fabric is improved. And the functional layer can still keep high bonding strength after being washed repeatedly.

The invention provides black edge display glass, a black edge display system and a vehicle. The black edge display glass comprises a light-transmitting area and a shielding area, the visible light transmittance of the light-transmitting area is larger than or equal to 70%, the visible light transmittance of the shielding area is smaller than or equal to 5%, and at least one display area is arranged in the shielding area. The black-edge display glass comprises an outer glass plate, an inner glass plate, a bonding layer, a shielding layer and an infrared reflecting layer, the outer glass plate, the bonding layer and the inner glass plate are sequentially stacked in the thickness direction of the black-edge display glass, and the bonding layer is bonded between the inner glass plate and the outer glass plate. The shielding layer is arranged between the outer glass plate and the bonding layer, and the shielding layer at least covers the display area. The infrared reflecting layer is arranged between the shielding layer and the bonding layer, and the infrared reflecting layer at least covers the display area. The black-edge display glass provided by the invention can increase the brightness ratio of the main image to the auxiliary image of the display image of the display area, reduce or even avoid ghosting of the display image, and improve the driving safety and the visual comfort.

The invention relates to the technical field of building energy-saving intelligent windows, and discloses a sunlight and heat radiation multi-adjustment intelligent window and a preparation method and application thereof. The intelligent window comprises an outer surface layer, a middle layer and an inner surface layer which are stacked in sequence. The outer surface layer comprises an infrared transparent layer, and an infrared reflecting layer and a doped vanadium dioxide layer which are respectively arranged on two opposite surfaces of the infrared transparent layer; the inner surface layer comprises a transparent substrate and a conductive layer attached to the surface of one side of the transparent substrate; the middle layer is a liquid crystal / polymer dimming layer, one side of the liquid crystal / polymer dimming layer is bonded with the infrared reflecting layer, and the other side of the liquid crystal / polymer dimming layer is bonded with the conductive layer. According to the intelligent window, multiple cooperative regulation and control of sunlight and heat radiation can be achieved, the regulation and control wave band is wide, the response speed is high, and the energy-saving effect is good. The regulation and control wave band covers visible light, near infrared and middle and far infrared ranges, reversible change can be realized along with the change of environment temperature, and all-year-round and all-weather energy saving is realized.

The invention provides a cold heading cutting forming mechanism and a using method, and belongs to the technical field of cold heading machining. Comprising a forming mechanism body, a forming cavity is formed in the inner side of the front portion of the upper end of the forming mechanism body, a cold heading cutter is arranged on the right side of the forming cavity, a protective mounting module is arranged at the upper end of the cold heading cutter, and a control panel is arranged above the right end of the protective mounting module. Through cooperation of the infrared emitter and the infrared reflecting mirror, the cross block and the cold heading cutter holder are adjusted to be perpendicular to each other according to the action of infrared reflection, and then when a metal wire is cut, once the cutting angle of the cold heading cutter deviates due to abrasion or other factors, the cross block and the cold heading cutter holder can be adjusted to be perpendicular to each other. When the metal wire is processed, the infrared emitter and the infrared reflecting mirror deviate, at the moment, the programmable logic controller receives a signal and transmits the signal to the control panel, and the cold heading cutter is powered off in time, so that the cold heading cutter is protected, and the safety of the metal wire during processing can be improved.

A coated article including a first antireflective (AR) coating supported by a glass substrate, wherein the first coating may include, moving away from the glass substrate: a dielectric first high index layer; a dielectric first low index layer; a dielectric second high index layer; a dielectric second low index layer comprising an oxide of silicon; a dielectric third high index layer comprising an oxide of niobium; a dielectric first medium index layer, wherein the third high index layer comprising the oxide of niobium is located between and directly contacting the second low index layer comprising the oxide of silicon and the first medium index layer; a dielectric third low index layer; and an overcoat layer; wherein the first coating contains no IR reflecting layer based on silver and / or gold; wherein, from the perspective of a viewer of the coated article, the first coating may be configured so that the coated article has a film side reflective ΔE* value of no greater than 3.0 upon heat treatment of at least about 580 degrees C. The ΔE* value(s) may be measured either with a substantially symmetrical / similar AR coating on the other side of the same glass substrate, or absent any AR coating on the other side of the glass substrate.

This invention relates to an inorganic composite photonic coating and its applications. The inorganic composite photonic coating of this invention includes a radiation-cooling functional coating or an infrared-reflecting functional coating, or a composite coating including the radiation-cooling functional coating and the infrared-reflecting functional coating arranged from top to bottom. The inorganic composite photonic coating of this invention can perform radiation cooling, infrared reflection blocking and heat preservation, or both, thereby achieving a self-adaptive effect of cooling in summer and blocking and insulating in winter.

The invention relates to the technical field of pigment characteristic detection, in particular to an infrared reflection pigment characteristic detection device and a detection method thereof.The infrared reflection pigment characteristic detection device comprises a detection box and a detection module arranged in the detection box, a supporting base is fixedly installed at the lower end of the detection box, and an inlet is formed in the detection box; a sliding plate is slidably connected to the detection box, a limiting assembly used for limiting and fixing a sample plate is arranged on the sliding plate, a protective drying mechanism is arranged on the sliding plate, and through cooperation of a door closing mechanism and protective covers, the two protective covers are far away from each other and drive two connecting blocks to be far away from each other; the connecting blocks drive the moving blocks to extrude the second springs, the two moving blocks are far away from each other, under the action of the connecting supporting rods, the two moving doors are close to each other and make contact with each other, at the moment, the two protective covers are moved away from the sample plate, the two moving doors can automatically seal the inlet, and convenience is improved.

The invention relates to the technical field of coatings, and discloses an infrared reflection composite heat insulation coating and a preparation method thereof. Comprising the following components in parts by weight: 0.1-0.3 part by mass of a wetting agent, 0.5-1.5 parts by mass of a dispersing agent, 0.2-0.8 part by mass of a defoaming agent, 0.1-0.5 part by mass of a pH regulator, 0.5-2 parts by mass of a flatting agent, 1.5-3 parts by mass of a coalescing agent, 30-50 parts by mass of pure acrylic emulsion, 10-20 parts by mass of phosphorus-containing modified titanium dioxide, 2-10 parts by mass of phosphorus-containing modified hollow glass beads and 2-8 parts by mass of silicon dioxide aerogel powder. The infrared reflection composite heat insulation coating prepared by the preparation method disclosed by the invention has excellent heat insulation effect and flame retardant effect, and is suitable for the field of building heat insulation coatings.

The invention provides a method for improving the infrared reflection performance of a gold coating, which comprises the following steps: dispersing an iron compound solution into an organic gold coating, and uniformly stirring to obtain an iron-doped organic gold coating; a quartz substrate is coated with the iron-doped organic gold coating, and an iron-doped gold coating is obtained through drying and annealing processes. Iron is doped in the organic gold coating, and the infrared reflection performance of the gold coating is effectively enhanced by utilizing charge transfer and transition of Fe < 3 + > and the influence of the electron structure of Fe < 3 + > on the band gap characteristic of crystals and the size structure of crystal grains. The method is simple in preparation and low in cost, and the iron-doped gold coating prepared through the method is excellent in weather resistance, corrosion resistance and infrared reflection performance and has wide application prospects.

The present application provides glass, a glass forming method, and a glass forming device. The glass comprises a first surface and a second surface which are oppositely arranged, wherein the first surface is provided with an infrared reflection film layer. The glass forming method comprises: heating glass; bending and forming the glass; and performing air blowing cooling on the glass to obtain glass of which the surface compressive stresses of the first surface and the second surface are greater than or equal to 30 Mpa, wherein the air pressure intensity of blowing air to the side of the first surface of the glass is smaller than the air pressure intensity of blowing air to the side of the second surface of the glass. By means of the glass forming method provided by the present application, the glass of which the surface compressive stresses of the first surface and the second surface which are oppositely arranged are greater than or equal to 30 Mpa can be obtained.

The invention discloses an intelligent cooling coating with a multi-layer functional gradient structure and a preparation method of the intelligent cooling coating. The coating comprises an infrared reflection-heat conduction blocking bottom layer, a heat insulation middle layer and an anti-pollution high-reflection surface layer. Each layer comprises the following components: hollow glass beads, aerogel powder and a water-based acrylic emulsion, and is used for constructing the low-heat-conductivity and infrared-reflection bottom layer; the metal organic framework material, the polyurethane emulsion, the coupling agent and the dispersing agent are used for constructing a heat-insulation slow-release middle layer; the reflective heat-insulation rare earth powder, the fluorosilicone modified acrylic resin, the flatting agent and the dispersing agent are used for constructing a high-reflection self-cleaning structure of the surface layer. Three-layer step-by-step construction, sequential coating and layered thermocuring are adopted for preparation. The coating is environment-friendly and stable in structure, has the properties of infrared reflection, self-cleaning, thermal buffering and the like, can be used for effectively cooling and improving weather resistance and corrosion resistance, is suitable for high-temperature protection of building outer walls, roofs, storage and transportation equipment and the like, and has a wide application prospect.

The invention relates to the field of energy-saving and environment-friendly new materials, in particular to a passive cooling radiation refrigeration light-transmitting film and a preparation method thereof. Comprising a first release protective film layer, a back adhesive layer, a first base material film layer, a second base material film layer, an IR reflecting layer, an IR selective emitting layer, a third base material film layer, a self-cleaning and self-repairing functional coating and a second release protective film layer which are sequentially stacked. The passive cooling radiation refrigeration light-transmitting film provided by the invention is moderate in thickness, strong in flexibility and large in stretchability, and can be tightly attached to any surface part. Under the condition that the appearance color is not influenced, the visible light wave band transmittance is greater than 70%, the infrared light reflectivity is greater than 68%, the 8-13 [mu] m atmosphere window emissivity is greater than 97%, the radiation refrigeration power is greater than 140 W / m < 2 >, and the heat insulation performance is good; as the used base material is TPU or PET, the tensile property is large, the flexibility is strong, and the product has good flexibility and contractibility, and is not easy to wrinkle and blister during film pasting construction.

The invention relates to the technical field of cleaning equipment, and discloses a light-sensitive cleaning equipment lighting system and application thereof.The system collects ground illumination intensity in real time through an ambient light detection module, a control unit dynamically adjusts the brightness of a lighting module based on a nonlinear dimming algorithm, and multiple modes are divided according to the illumination intensity; and the cleaning parameters are linked to realize cooperative control. Meanwhile, the ground material identification module detects the ground reflection characteristics through an infrared reflection sensor, and the illumination strategies are optimized for high-reflection materials and low-reflection materials respectively. Experimental data show that compared with a traditional fixed brightness scheme, the system saves energy by more than 40%, the dark area dust recognition rate is improved by 60%, the glare intensity is reduced by 50%, the problems of poor environmental adaptability, low energy efficiency, single function and the like in the prior art are effectively solved, the system is suitable for intelligent cleaning equipment such as a sweeping robot and a handheld dust collector, and the cleaning efficiency and the user experience are remarkably improved.

The invention belongs to the technical field of infrared radiation materials, and particularly relates to an infrared radiation material and a preparation method and application thereof. The infrared radiation material comprises a base material layer, a metal layer, an ink layer and a polymer protection layer which are sequentially stacked, the ink layer comprises modified vanadium dioxide; the modified vanadium dioxide is obtained by modifying vanadium oxydichloride by adopting a metal compound. According to the invention, the multi-layer metal layer with high infrared reflection and low infrared radiance is used as the bottom layer, and the multi-layer metal layer shows strong reflection and low absorption effects in mid-infrared and far-infrared bands; infrared rays can penetrate through the ink layer and are reflected on the surface of the metal layer to be less absorbed, the modified vanadium dioxide is added into the ink layer, the phase change temperature can be greatly reduced through doping modification of a metal material in the vanadium dioxide, the phase change is reduced to the room temperature or below, and then the infrared radiance is obviously reduced. And all the layers act together to obtain the infrared radiation material with lower infrared radiance.

The invention relates to an up-conversion infrared photon contact lens as well as a preparation method and application thereof, and belongs to an infrared visual material. Wrapping the surface of the solid nanometer microsphere with the up-conversion nanometer particles to form an up-conversion luminescence core-shell structure microsphere; dispersing the up-conversion core-shell structure microspheres in an acrylate solution to prepare an up-conversion luminescent layer (UCL); dispersing polymer microspheres in an acrylate solution to prepare an up-conversion light reflecting layer (GRL); dispersing the solid nano-microspheres in an acrylate solution to prepare an infrared reflection layer (IRL); dispersing the hollow nano-microspheres in an acrylate solution to prepare a surface antireflection layer (ARL); and further obtaining the up-conversion infrared photon contact lens. The contact lens prepared by the invention has excellent up-conversion luminescence performance and a good wearing function, and can realize efficient utilization of infrared photons so as to realize visualization of infrared light.

The present application provides a kind of vehicle laminated glass and its application, which includes outer sheet glass, inner sheet glass and intermediate film, the outer sheet glass has the first surface towards outside and the second surface towards inside, the inner sheet glass has the third surface towards outside and the fourth surface towards inside, the intermediate film is bonded with the second surface and the third surface, infrared reflection film is provided between the outer sheet glass and the inner sheet glass, and low-emissivity film is provided on the fourth surface;The mirror factor α of the vehicle laminated glass is less than or equal to 15, and the mirror factor α is according to the formula α=RL / TL 2 RL is the visible light reflectance of the vehicle laminated glass measured from the inside, and TL is the visible light transmittance of the vehicle laminated glass. When the vehicle laminated glass is used as the sunroof glass of the vehicle roof, the use of sunshade curtain can be cancelled, the mirror reflection effect of the inside can be effectively improved, and the user experience and passenger privacy can be protected.

A laser surgery system capable of navigation and positioning, the system comprising a navigation and positioning module (101), a central workstation management module (102), a laser device module (103) and a laser output module (104), wherein the navigation and positioning module (101) comprises a coordinate acquisition unit, an infrared camera and a tracking and positioning apparatus; the central workstation management module (102) is used for generating a control signal on the basis of parameter setting information and generating a positioning instruction on the basis of received navigation information; the laser device module (103) is used for driving, on the basis of the control signal, a laser generation apparatus to generate a working laser; the laser output module (104) is used for outputting the working laser; the coordinate acquisition unit is connected to each of the infrared camera and the central workstation management module, and the coordinate acquisition unit is used for acquiring infrared reflection information by means of the infrared camera after receiving the positioning instruction, and obtaining mark positioning information on the basis of the infrared reflection information and the tracking and positioning apparatus; and the central workstation management module (102) is further used for obtaining a skin reference plane and a surgical tool position on the basis of the mark positioning information, and displaying the skin reference plane and the surgical tool position on an operation screen. The system can precisely position a focus and guide a surgical operation in a timely manner, thereby realizing visualized targeted therapy and precision medicine.

The invention provides a technical photographing system for calligraphy and painting cultural relics, and relates to the technical field of photographing and repairing of the calligraphy and painting cultural relics, and the system comprises an automatic light source adjustment unit which comprises a light source recognition module and a light source optimization module, and the light source recognition module is used for recognizing physical feature parameters of the calligraphy and painting cultural relics and optimizing the light source parameters of the calligraphy and painting cultural relics; the physical characteristic parameters comprise materials, sizes and surface characteristics of the calligraphy and painting cultural relics. According to the photographing system for the calligraphy, painting and cultural relic technology, a multi-spectral image sequence is cooperatively collected by combining multiple light sources, detailed data including an ultraviolet fluorescence image, an infrared reflection image, a light-transmitting image and a sidelight texture image can be obtained, and the light sources in the lamp set are automatically selected and combined; therefore, precise illumination adjustment for different types of calligraphy and painting cultural relics is realized, the acquisition quality of the multispectral image sequence is ensured, and the accuracy and definition of the image are improved.

The invention belongs to the technical field of electrochromic materials, and particularly relates to an electrochromic device with controlled infrared reflection, which comprises a substrate, and a lower electrode layer, an anode color-changing layer, an ion transmission layer, a cathode color-changing layer, an upper electrode layer and a protective layer which are sequentially deposited on the substrate, the upper electrode layer is of a hollow grid-shaped, strip-shaped or annular structure, and the lower electrode layer is of a structure with periodic grooves; the width L and the height H of the groove are equal, and the groove is formed by continuously connecting a plurality of 1 / 4 concave spherical surfaces with the same radius R and a plurality of 2 / 3 convex spherical surfaces with the same radius R.

The present application provides an eye tracking method and device, and a storage medium. The method is applied to an electronic device comprising a first infrared light source and a camera module. The camera module comprises a receiver and a transmitter that integrates a second infrared light source. The electronic device of this structure determines a current service scenario thereof, and then when the electronic device is in a high-precision eye tracking scenario, controls the two infrared light sources to both emit infrared light to a target object having the eyes of a user, and receives, by means of the receiver, reflected infrared light, which is first infrared light and second infrared light reflected from the target object, to generate a first infrared image of the eyes, so that the electronic device can perform eye tracking on the basis of the first infrared image. Because the camera module itself comprises an infrared light source, high-precision eye tracking can be achieved by adding only one additional infrared light source, thereby ensuring the precision of eye tracking, and reducing the number of holes on a screen of the electronic device.

The application provides a kind of laminated glass and vehicle, can ensure that the appearance color difference of laminated glass is smaller under different observation angles, ensure the consistency of the overall appearance color of vehicle.Laminated glass includes outer sheet glass, inner sheet glass, infrared reflection layer and adhesive layer, adhesive layer is arranged between outer sheet glass and inner sheet glass, outer sheet glass includes oppositely arranged first surface and second surface, inner sheet glass includes oppositely arranged third surface and fourth surface, third surface faces second surface, infrared reflection layer is arranged on second surface;Laminated glass has the maximum chromatic aberration C max ≤3.5 in the range of incident angle θ 10°≤θ≤80°.

The invention relates to laminated glass, a head-up display system and a vehicle. The laminated glass comprises a first glass plate, a second glass plate, a middle layer and an infrared reflecting layer; the projection display area is used for reflecting projection light, and the range where the projection display area is located is at least partially covered by the infrared reflecting layer; an inflection point wavelength F lambda exists in a reflection spectrum curve of the projection display area, the inflection point wavelength F lambda is located in the wave band range of 615-700 nm, and the maximum reflectivity of the projection display area in the wave band range from 460 nm to the inflection point wavelength F lambda is smaller than the maximum reflectivity of the projection display area in the wave band range from the inflection point wavelength F lambda to 780 nm; the inflection point wavelength F lambda is greater than the wavelength corresponding to the red light emission peak in the emission spectrum curve of the projection light. The selection of the inflection point wavelength F lambda can ensure that the laminated glass achieves a heat insulation effect. Meanwhile, the spectral band of the projection light does not coincide with or slightly coincide with the high-reflectivity band of the infrared reflecting layer, and the color cast abnormity of the image is reduced or even eliminated.

The invention relates to a gesture recognition method and device, a range hood, a computer readable storage medium and a computer program product. Infrared transmitting tubes are driven to output infrared signals according to a preset time sequence period, and infrared reflection signals received by infrared receiving tubes are obtained; determining that the infrared reflection signal is an effective infrared reflection signal under the condition that the signal segment conforming to the preset time sequence exists in the infrared reflection signal; and performing action analysis based on each effective infrared reflection signal, identifying to obtain a target hand waving action, and executing an operation corresponding to the target hand waving action. The infrared transmitting tube outputs the infrared signal in the special coding format, so that whether the received infrared reflection signal is received due to the shielding of an effective gesture or not can be determined by judging whether the received infrared reflection signal has a signal segment conforming to the special coding format or not; therefore, false starting or false operation of other interference signals on the gesture recognition function is effectively avoided, and the accuracy of the gesture recognition function is improved.

The invention discloses a multi-layer label production method with an automatic deviation correction effect, through a multi-layer cooperative positioning mechanism of a conductive grid positioning mark and an infrared sensitive reflection strip, the alignment precision between label layers is remarkably improved, and through combination with fine regulation and control of a multi-axis independent tension control system on the tension of a printing layer, the production efficiency of the multi-layer label is improved. Accumulated errors caused by material deformation are effectively inhibited, a high-speed visual detection system analyzes the spatial relation between the conductive grid and infrared reflection characteristics in real time, micron-order offset dynamic monitoring is achieved, interlayer errors can be stably controlled within a process threshold value in cooperation with a real-time compensation mechanism, the rejection rate is greatly reduced, and the production efficiency is improved. According to the innovative two-stage curing process, through sequential control of pulse ultraviolet pre-curing and infrared final curing, the process tolerance of secondary positioning in the semi-curing stage is ensured, the interlayer bonding strength is improved through gradient curing, and finally continuous and stable production of the high-precision multi-layer anti-counterfeit label is achieved. And continuous and stable production is realized in the field of high-end anti-counterfeit labels.

The invention relates to the technical field of leather products, and particularly discloses a leather product feature recognition and authentication method and system based on deep neural network learning. According to the scheme, visible light, near-infrared reflection and polarized light interference images of leather are obtained through a multi-mode imaging technology, surface texture and color, internal fiber structure and section fiber arrangement features are extracted respectively and converted into standardized feature vectors, the three types of features are fused to construct a comprehensive leather feature vector, and the comprehensive leather feature vector is obtained. A deep neural network is input for authenticity identification, a confidence score is output, objective quantification of full-dimensional physical characteristics from the surface to the interior is realized by outputting the confidence score, subjectivity and one-sidedness of traditional artificial identification are overcome, and the method has efficient and large-scale accurate identification capability.

The invention provides an intelligent two-dimensional code scanning method and system based on multi-modal perception, relates to the technical field of two-dimensional code scanning, and solves the technical problem of low recognition efficiency in a complex scene in the prior art. The method comprises the following steps: collecting a visual image, a depth image, an infrared reflection intensity graph and radar point cloud data of a to-be-scanned object to obtain multi-dimensional data; performing feature extraction on the multi-dimensional data to obtain multi-dimensional features; the multi-dimensional features are input into a Dempster Shafer evidence theory fusion device, and credibility is output; and deciding the scanning mode of the to-be-scanned object based on the credibility. The method can be applied to industrial production, logistics storage and other processes with high scanning precision requirements.

The application discloses an infrared sensing module, which comprises a reflecting part, a driving part, an infrared light emitter and an infrared light receiver, the driving part is connected with the reflecting part, the driving part drives the reflecting part to rotate, and in the case that the reflecting part rotates to a preset position, an infrared reflecting layer of the reflecting part faces the infrared light emitter and the infrared light receiver. The above scheme can solve the problem that the thickness of a terminal device is large due to the fact that infrared sensors are arranged on both sides of the terminal device. The application discloses a terminal device, a control method of a terminal device, a control device for controlling a terminal device and a computer readable storage medium.