Optical fiber path arrangement method and system based on OXC all-optical backplane

The invention discloses an optical fiber path arrangement method and system based on an OXC all-optical backboard. The method comprises the steps of obtaining size information of a target OXC all-optical backboard and optical fiber data description of an optical fiber line; constructing a target function according to the optical fiber data description, and obtaining a plurality of groups of optical fiber topological structures by taking an optical fiber arrangement path as an independent variable and the size information of the target OXC all-optical backboard as a dependent variable and utilizing the target function; performing assignment processing on each group of optical fiber topological structures based on a preset precondition, and obtaining optical fiber arrangement parameters of each group of optical fiber topological structures according to an assignment result; and performing spatial mapping on the optical fiber arrangement parameters of each group of optical fiber topological ...

Low-friction air-blowing optical fiber unit with glass microspheres

The invention relates to a low-friction air-blowing optical fiber unit with glass microspheres, which comprises a plurality of cores formed by a plurality of optical fibers and outer tubes, wherein the plurality of cores are wrapped by outer sheaths, and the glass microspheres are covered on outer layers of the outer sheaths. The low-friction air-blowing optical fiber unit solves the problem that the conventional optical cable is easy to damage during wiring and stretching, and the problem that the mechanical performance of the optical fibers cannot be protected.

Method and device for realizing master and spare unit convertion on exchange port of exchanger

A method for realizing master and standby conversion at the port of an exchanger is to add a FPGA chip between the process chip and exchange chip on the physical layer of an exchange interface board for finishing the merging of the up-line cells and duplication of the down stream cells of the said interface board to realize the conformation of outlet and inlet cells from the master and standby ports to realize seamless conversion between the two ports. The up-line cells from the two ports are merged into the FPGA chip to be sent to the exchange board, the down stream cells emitted from a certain port are duplicated in the said FPGA chip to be sent to its standby port.

Method for electroplating on surface of silica optical fiber

The invention relates to a method for electroplating on the surface of a silica optical fiber. In the method, an optical fiber on which Ni-P is chemically plated is taken as a cathode; a nickel anode is first cleaned by using sodium hydroxide with the concentration of 30 percent, is then neutralized by using sulfuric acid with the concentration of 10 percent and is finally cleaned by using distilled water; 1.5g of lanthanum oxide additive is added into every liter of conventional electroplating solution; and the electroplating solution is plated on the surface of the silica optical fiber at the temperature of 25 DEG C and the current density of 0.7A dm<-2>. In the method, the lanthanum oxide is added into the electroplating solution according to a certain proportion, so that the deposition rate and the current efficiency are improved.

Chemical plating method for quartz fiber surface

The invention relates to a chemical plating method for a quartz fiber surface. The plating solution consists of 24g/L of nickel chloride hexahydrate, 10g/L of sodium hypophosphite, 10g/L of potassium borohydride, 24mL/L of ethylenediamine and 0.6mg/L of cadmium sulfate. Chemical plating is performed when the pH of the plating solution is equal to 13 to 14 and the temperature is 90 DEG C. Nickel-phosphorus-boron alloy is chemically plated on the quartz fiber surface to improve the hardness and the electric conductivity of the fiber.

Polyethylene jacket material for cable

The invention relates to a polyethylene jacket material, in particular to a polyethylene jacket material for a cable. The polyethylene jacket material for the cable consists of high-density polyethylene resin, medium-density polyethylene resin, linear low-density polyethylene resin and an antioxidant processing aid and is prepared by weighing, mixing, extruding, grain cutting, drying and packaging.

Method for preparing polymer photonic crystal fiber

The invention relates to a method for preparing a polymer photonic crystal fiber, belonging to the technical field of optical communication. The method is characterized by taking air arrays in the polymer photonic crystal fiber as templates to prepare the silver microtube array modified polymer photonic crystal fiber. The holes on the surface of the fiber have regular silver microtube shaped structure. The fiber has good conductivity.

Manufacturing method of polymer optical fiber

The invention relates to a manufacturing method of a polymer plastic optical fiber, which is used in the fields of optical communication, optical sensing devices, lighting decorations and the like. The SI POF (step-index plastic optical fiber) is manufactured from methyl methacrylate, initiator and chain transfer agent by processes of purification, prepolymerization, polymerization and granulation molding.

Preparation method of optical fiber preform

The invention relates to a preparation method of an optical fiber preform. The method comprises the following steps: using SiCl4, BBr3, chlorofluoromethane, oxygen, hydrogen and helium as raw materials to deposit a fluorine-boron codoped coating used as the reflection layer in a quartz tube; then depositing a core layer, wherein when the core layer is deposited, hydrogen is doped and the ratio of hydrogen to the mixed gas in the tube is adjusted to ensure that the core layer can have different hydroxyl contents; and finally fusing at high temperature to shrink the preform.

Optical fiber provided with fire retardant coating

The invention relates to an optical fiber provided with a fire retardant coating. A first coating and a second coating are arranged on an outer circumference surface of a glass fiber, wherein a second resin composition which forms the second coating comprises 100 weight parts of base polymer, 100 to 250 weight parts of metal hydroxide and 10 to 100 weight parts of nitrogen fire retardant material; and the second resin composition does not contain a halogenated material, so that the fire retardance of the optical fiber is improved, environmental pollution is reduced and enough mechanical protection of the optical fiber is ensured simultaneously.

Large-size intelligentized navigation mark revolving modulator and control method

The invention discloses a large-size intelligentized navigation mark revolving modulator and a control method. The revolving modulator comprises a lamp body (1) and a controller (2), wherein a step motor (9) is mounted on the lower portion of a central strut (4) on a chassis (3) of the lamp body (1) to drive a rotary shaft (11) to rotate through a coupling (10), a lens cage (13) is connected with the rotary shaft (11) by a lower tray (14), the upper end of the central strut (4) is provided with a lamp changer base (18), a lamp changer (19) and a lamp (20), the controller (2) is composed of a control unit capable of providing the rotary control over modulators, controlling the modulator rotate-speed adjustment process and the luminescence, providing the automatic lamp changing control and the automatic control of communication modes. The modulator relates to the large-size intelligentized navigation mark revolving modulator which has the advantages of high intelligentized degree, simple ...

Steel wire heating method and steel wire heating device

The invention discloses a steel wire heating method, which comprises the following steps: 1) a heat conductor is inserted into and arranged in a cavity of the machine head of a plastic extruding machine; 2) after the plastic extruding machine is started up to a preset working temperature, a steel wire to be heated is inserted into and arranged in a heating hole of the heat conductor. According to the technical scheme, the steel wire heating method provided by the invention utilizes the temperature of the machine head to heat the steel wire. During the working of the plastic extruding machine, the working temperature is set in advanced according to the characteristics of polyethylene plastics, the preset working temperature of the plastic extruding machine satisfies the heating temperature of the steel wire, the heat conductor is inserted into and arranged in the cavity of the plastic extruding machine, the plastic extruding machine is started up to the preset working temperature, the steel ...

High-temperature resistant large-length load-bearing detection optical cable

The invention relates to a high-temperature resistant large-length load-bearing detection optical cable, in particular to a high-temperature resistant large-length load bearable which bears vertical load and high temperature along the axial direction of the optical cable for a long time and has enough length for detection data transmission. The optical cable consists of a tightly packaged fiber (1) as an inner core, an external tightly packaged insulating layer (2), a braided copper wire layer (3), inner and outer sheath layers (4, 6) and stranded load-bearing steel wire layers (7, 8). The high-temperature resistant large-length load-bearing detection optical cable is characterized in that the tightly packaged fiber (1) is taken as the inner core, and the tightly packaged insulating layer (2), the braided copper wire layer (3), the inner sheath layer (4), a closed waterproof metal tube (5), the outer sheath layer (6) and the inner and outer stranded load-bearing steel wire layers (7, 8) ...

Resonant tracking non-contact power supply device and power supply method

The invention discloses a resonant tracking non-contact power supply device and a resonant tracking non-contact power supply method and aims to mainly solve the problems that the transmission efficiency and transmission distance are reduced and induction voltage is sensitive to load change caused by the change of a resonant point in an LC resonant non-contact power supply. An excitation source with adjustable frequency and amplitude is formed through an adjustable switch power source (102) and a half-bridge switch (103) and is applied to a resonant circuit consisting of an emitting coil (112) and a resonant capacitor (113); a current signal in the resonant circuit is acquired by using a current sampler (104); an automatic resonant frequency tracking circuit consists of a comparator (105), a phase discriminator (106) and a controllable oscillator (107); when the resonant point changes, an excitation frequency is automatically adjusted and an automatic excitation voltage adjusting circuit ...

Natural light realizing method and system of modular television

The invention discloses a natural light realizing method and system of a modular television. The method includes the following steps that: a user UI parameter and an information source state parameter are obtained through a card end and are transmitted to a screen end through a communication serial port; the screen end obtains the average luminance and histogram information of a current image, the backlight target value and contrast target value of the screen end are calculated according to the user UI parameter, the information source state parameter, the average luminance and the histogram information; and the backlight value and contrast value of the screen end are correspondingly set as the backlight target value and the contrast target value. With the natural light realizing method and system of the modular television adopted, the calculated target value of backlight is lower than an original value, and the target value of contrast is higher than an original value, and therefore, the ...

Fiber paste pre-filling device for optical fiber ribbon plastic shield prebalelling

The invention discloses a fiber paste pre-filling device for optical fiber ribbon plastic shield prebalelling. The fiber paste pre-filling device comprises a seal cover, an inner core and a wire separating device. The inner core is arranged inside the seal cover in a rotatable mode. A circular groove is formed in the peripheral surface of the inner core. A fiber paste runner is formed by the circular groove and the inner ring surface of the seal cover. The fiber paste runner is communicated with a fiber paste inlet. The wire separating device is fixedly connected with the inner core and is coaxial with the inner core. Besides, the wire separating device is arranged outside the seal cover, and a fiber paste overflow hole is formed in the inner side wall of a wire separating cavity of the wire separating device and communicated with the fiber paste runner through a pipeline. In addition, the wire separating device is provided with a cover plate, wherein the wire separating cavity can be opened ...

Fiber-core doped fiber

The invention provides a fiber-core doped fiber. The fiber-core is made by doping a small amount of GeO2 and P2O5 capable of increasing the index of refraction and a semiconductor InP nano material in a pure quartz material which is adopted as a coating material, and a protection layer is made from a pure quartz reaction tube. By doping the semiconductor InP nano material, the nonlinear coefficient is higher, and the gain spectrum is wide.

Optical fiber

The invention relates to an optical fiber comprising a glass fiber structure, a first cover layer and a second cover layer, wherein the first cover layer is made of soft curing resins and directly covers the outer surface of the glass fiber structure; the second cover layer is made of hard curing resins and covers the outer surface of the glass fiber structure via the first cover layer; and the mechanical factors of the glass fiber structure, the first cover layer and the second cover layer are selected to ensure the Young modulus of the first cover layer to be more than the average tensile stress (sigmar+sigmatheta+sigmaz)/3 applied to the first cover layer when the temperature of the UV (ultraviolet) curing resins is substantially reduced to the temperature when hardening of the UV curing resins is completed from the temperature when hardening of the hard UV curing resins is started.

SINGLE-POWER PLASMA WELDING MELTHOD WITH MOLTEN ELECTRODE PROTECTED BY GAS

Mixed optical cable with cross support

The invention relates to a mixed optical cable with a cross support, which comprises an outer protective sheath (1), four pairs of twisted pair wires arranged in the outer protective sheath and a cross-shaped skeleton (3) used for separating the four pairs of twisted pair wires, wherein each twisted pair wire is formed in such a manner that an insulated layer (5) covers a conductor core (4); the center of the cross skeleton (3) is provided with a center hole (6) along the axis, and an optical fiber or a fiber core is arranged in the center hole (6) in a penetrating manner. The mixed optical cable is a non-shielded photoelectrical broadband mixed cable which has a simple structure, small volume and low cost, and can transmit a light signal and an electric signal simultaneously with excellent performance and no mutual interference between the light signal and the electric signal during transmission; in addition, the mixed optical cable also has the effects of no combustion supporting, no ...

Method for preparing optical fiber preforming rod

The invention relates to a method for preparing a temperature-resistant plastic optical fiber preforming rod. In the method, copolymer of a methacrylate monomer and an N-alkyl maleimide monomer serves as an optical fiber basic material; an abrupt plastic optical fiber preforming rod is prepared through bulk polymerization; a graded plastic optical fiber preforming rod is prepared by an interface/gel polymerization principle; and finally the graded plastic optical fiber preforming rod with improved temperature resistance can be obtained.

Packing mould of fine cream of optic fibre

The utility model discloses a packing mould of fine cream of optic fibre, included fine pipe, with packing die sleeve and the cartridge of crossing fine pipe relatively fixed are in the oil pipe that fills in the die sleeve fills, fill oil pipe with die sleeve threaded connection fills, fill be provided with in the die sleeve axis with the axis of crossing the fine mouth of fine pipe lies in the first location round hole portion of same straight line, fill be provided with in the oil pipe with fill oil pipe the coaxial setting in oil charge hole and with the first location cylinder portion of complex of first location round hole portion. The utility model provides a pack the location fit of mould through first location cylinder portion and first location round hole portion to injecing and filling oil pipe and fill the relative position relation between the die sleeve, compare through threaded connection, positioning accuracy is high. The axis of the fine mouth of fine pipe and the inconsistent ...

Heat-resistant cable

The invention relates to a heat-resistant cable. A sheath structure comprises a protection coating of resin containing a vinylidene fluoride unit, and a light-shielding coating coated outside the protection coating, wherein the protection coating has an excellent effect on preventing a monomer and an oligomer contained in the light-shielding coating from being dissolved or dispersed to POF (Polymer Optical Fiber).

Calender for simultaneously calendering multiple graphite rolls

The utility model relates to a calendering and unwinding device, in particular to a calendering machine capable of calendering multiple rolls of graphite simultaneously, which comprises a press roll component, the press roll component comprises an upper press roll and a lower press roll, and a calendering area is formed between the upper press roll and the lower press roll; a release film unwinding shaft and a graphite unwinding shaft are arranged on the inlet side of the calendering area, and a product winding shaft is arranged on the outlet side of the calendering area. According to the calender capable of simultaneously calendering multiple graphite rolls, the calendering area on the surface of the compression roller can be fully utilized, so that the product tension can be automatically controlled in the operation process of the winding and unwinding shafts, the operation is simple, and the maintenance is convenient.

Negative pressure device for gluing optical fiber capillary tube

The invention provides a negative pressure device for gluing an optical fiber capillary tube, which comprises a glue storage tank for placing a sealant; the pushing device is used for pushing the sealant to enter the optical fiber capillary tube, the optical fiber capillary tube is provided with a first tube opening and a second tube opening, the first tube opening is communicated with the second tube opening, one end of the sealant storage tank is connected with the pushing device, and the other end of the sealant storage tank is connected with the first tube opening of the optical fiber capillary tube; the vacuum device is connected with the second pipe orifice; wherein the vacuum device is used for discharging air in the optical fiber capillary channel out of the vacuum device, so that the sealant moves towards the direction of the second pipe orifice and fills the optical fiber capillary. The negative pressure devices are installed at the two ends of the optical fiber capillary tube ...

Resonant tracking non-contact power supply device and power supply method

The invention discloses a resonant tracking non-contact power supply device and a resonant tracking non-contact power supply method and aims to mainly solve the problems that the transmission efficiency and transmission distance are reduced and induction voltage is sensitive to load change caused by the change of a resonant point in an LC resonant non-contact power supply. An excitation source with adjustable frequency and amplitude is formed through an adjustable switch power source (102) and a half-bridge switch (103) and is applied to a resonant circuit consisting of an emitting coil (112)and a resonant capacitor (113); a current signal in the resonant circuit is acquired by using a current sampler (104); an automatic resonant frequency tracking circuit consists of a comparator (105),a phase discriminator (106) and a controllable oscillator (107); when the resonant point changes, an excitation frequency is automatically adjusted and an automatic excitation voltage adjusting circuit consists ...

Glass optical fiber

The invention relates to a glass optical fiber comprising an optical fiber core and an optical fiber inner cladding which share a central axis. The glass optical fiber is characterized in that the fiber core glass is made from fluorophosphates glass doped with high-concentration Tm<3+> ions. The glass optical fiber core material provided by the invention has the n-core refraction index greater than the n-package refraction index of the inner cladding glass material of the optical fiber; the expansion coefficient difference of the fiber core and the inner cladding glass material is +/- 20*10-7/DEG C; the conversion temperature difference between the fiber core and the inner cladding glass material is lower than 30 DEG C, and the softening temperature difference is lower than 50 DEG C.

Continuous reaction device for solution radical polymerization

The invention relates to a continuous reaction device for solution radical polymerization. The continuous reaction device comprises a sealed box body, wherein the box body is supported by a support rack; the continuous reaction device is characterized in that the box body is internally provided with a plurality of ultraviolet lamp groups and a microwave reaction system, the polymerization reaction is carried out on a Teflon conveyor belt which is of a special structure and supported by a driving shaft and a driven shaft, the ultraviolet lamp groups are parallel to the direction of the conveyor belt, the distance from the ultraviolet lamp groups to the conveyor belt can be automatically adjusted; for preventing leakage of microwave, microwave suppressors are arranged at two sides of a microwave reactor. The device is provided with a temperature measuring point and a monitor, as well as an air supply outlet and an air outlet, can automatically control on and off of the ultraviolet lamp groups ...

Magic cube type display cabinet

The invention discloses a magic cube type display cabinet which comprises six central color block mechanisms, twelve ridge color block mechanisms, eight corner color block mechanisms and a central coordinate frame mechanism. The six central color block mechanisms are respectively positioned in the centers of various surfaces of a rectangle, the twelve ridge color block mechanisms are respectively positioned in the middles of various ridges of the rectangle, the eight corner color block mechanisms are respectively positioned at end corners of the rectangle, the central coordinate frame mechanism is positioned in the center of the rectangle, the various central color block mechanisms are respectively connected with various ends of a central cross, each ridge color block mechanism is connected with the two corresponding central color block mechanisms which are adjacent to the ridge color block mechanism, and each corner color block mechanism is connected with the three corresponding central ...

OXC all-optical backboard

The invention discloses an OXC all-optical backboard, which comprises an all-optical backboard main body, the all-optical backboard main body comprises a bearing plate, an optical fiber filament layer and a fixing layer, the bearing plate is provided with the optical fiber filament layer, and the fixing layer is arranged on the optical fiber filament layer to fix the optical fiber filament layer. A traditional optical fiber wire is peeled and then taken out, the optical fiber wire is automatically woven to the bearing plate through the weaving process to form the optical fiber wire layer, the density of the optical fiber wire in the optical fiber wire layer is improved, and the optical fiber wire in the optical fiber wire layer can reach submicron precision after the weaving process; according to the all-optical backboard, the optical fiber layer is coated with organic gel through the coating technology, the all-optical backboard body is formed after ultraviolet irradiation exposure and ...

Method for manufacturing high-strength optical fiber

The invention relates to a method for manufacturing high-strength optical fiber, particularly high-strength glass fiber obtained by the steps of: carrying out surface treatment on a prefabricated rod at 1,900 DEG C by using high-concentration hydrofluoric acid, then drawing and coating in a sealing way.

Indoor optical cable

The utility model discloses an indoor optical cable, establish including central reinforcement, light unit and cover the skeleton in the center reinforcement outside, the outside of skeleton is provided with longitudinal arrangement's recess, the setting of light unit is in in the recess, the light unit includes that optic fibre, cover are in the aramid fiber reinforcement and the cover in the optic fibre outside are established the stainless steel spiral armor in the aramid fiber reinforcement outside. The skeleton has very good anti side pressure ability, and bending property is good for stainless steel spiral armor, and the aramid fiber reinforcement can improve this indoor optical cable's tensile ability simultaneously. Again because the nonrust steel sheet of stainless steel spiral armor is very thin, cause the whole indoor optical cable can weight reduction, so this indoor optical cable can solve the poor and big scheduling problem of weight of indoor optical cable bending property ...

Sensing optical cable

The utility model discloses a sensing optical cable, including the fibre core, the fibre core is located pipy metal protection shell, fibre core surface coated optical fiber coating, fill high temperature resistant flame retardant coating between optical fiber coating and the metal protection shell. An object of the utility model is to provide a sensing optical cable to sensing optical cable's intensity and the problem that fire behavior haves much room for improvement realize improving sensing optical cable's intensity and fire behavior's purpose among the solution prior art.

Method for preparing optical fiber preform through modified chemical vapor deposition

The invention relates to a method for preparing an optical fiber preform through modified chemical vapor deposition (MCVD), wherein the core layer of the optical fiber preform does not contain hydroxyl groups basically and the concentration of hydrogen ions is less than 1ppb. The optical loss of the optical fiber prepared from the preform is less than 0.33dB/km when the wavelength is from 1340nm to 1460nm.

Sheath material for optical cable

The invention relates to a sheath material for an optical cable, which comprises high density polyethylene, melt viscosity modifier, higher fatty acid soap processing agent, carbon black master batch and nucleating agent by special weight percentage. The sheath material is low in processing temperature, excellent in processing performance and cabling, resistant to environmental stress, long in service life and resistant to wear, and has optical protection.

Rubber-insulated fiber cable

The invention relates to a rubber-insulated fiber cable for comprehensive introduction of Fiber To The Home (FTTH), which is improved based on the traditional FTTH rubber-insulated fiber cable and comprises steel wires, a copper conductor and a low-smoke halo-free flame-retarded protective sheath. In the rubber-insulated fiber cable provided by the invention, the copper conductor is used for replacing a parallel reinforcing member (metal, nonmetal) in order to prevent repeated wiring, strengthen the softness of the fiber cable and bring convenience to laying during construction.

Heat-resisting optical cable

The invention relates to a heat-resisting optical cable, which is formed by mixing a metal wire with an optical fiber, and adding a single mode optical fiber (2) into a two-core, three-core or multi-core metal cable, wherein the metal wire is made of copper, aluminum, aurum or silver conductive material in the prior art, the single mode optical fiber is glass optical fiber or plastic optical fiber in the prior art, and the optical fiber is used for transmitting optical signals or cable on-fire signals.

Analysis method for stress change of optical fiber capillary tube

The invention discloses an analysis method for stress change of an optical fiber capillary. Comprising the following steps: placing an optical fiber capillary tube on a clamping piece, connecting an electronic instrument, feeding back a stress change initial value, and respectively collecting strain values corresponding to various monitoring positions at a plurality of preset moments, a strain value generated by stress deformation of the optical fiber capillary tube is measured by adopting a strain sensor, and the yield degree of the optical fiber capillary tube is monitored through a tension sensor; in the elastic recording process of the optical fiber capillary tube, generated deformation stress points can be monitored through an electronic instrument, data change values of the stress points are recorded, and then the data change values are transmitted to a control end through a network module for network calculation and monitoring. By means of the method, under the condition that the ...

Method for manufacturing optical fiber prefabricated rod

The invention relates to a method for manufacturing an optical fiber prefabricated rod, comprising the steps of: (1) growing a passivation layer on a fluorine-doped layer of a quartz base tube; (2) generating an evacuating nozzle; (3) sleeving and connecting the tube and a rod; (4) shrinking; and (5) grinding. The method provided by the invention has good process repeatability, and the manufactured optical fibers have favorable radiation resistance and have low loss in a near infrared band, an ultraviolet band and an invisible light band.

Miniature half-tight-sleeving gas-blast optical fiber unit

The invention relates to an improved optical cable, in particular to a miniature half-tight-sleeving gas-blast optical fiber unit comprising a plurality of core bodies formed by a plurality of optical fibers and an outer tube, the plurality of core bodies adopt half-tight-sleeving arrangement and is peripherally filled with silicon oil and wrapped by an outer jacket with a microchannel.

Anti-tracking polyethylene sheathing material

The invention relates to an anti-tracking polyethylene sheathing material which comprises a mixture of high-density polyethylene resin and low-density polyethylene resin, and an anti-tracking agent is filled in the blended and modified polyethylene resin. The anti-tracking polyethylene sheathing material has a favorable anti-tracking property and can eliminate the electrolytic corrosion phenomenon on the surface of an optical cable in a highfield and operate for a long time in a severe environment outdoors without faults.

一种大规模制备单保护的顺式-1，4-丁烯二醇衍生物的方法

A process for preparing the single-protected cis-1,4-butenediol derivative in large scale is disclosed. Said single-protected cis-1,4-butenediol derivative is an important intermediate used to prepare novel H2 receptor antagon-Laftitin.

Method and system for supervising and managing pollution discharge at estuary

The invention relates to the technical field of pollution discharge at an estuary, and discloses a pollution discharge supervision and management method and system at the estuary, and the method comprises the following steps: S1, for key management and general management of pollution discharge ports, building a pollution discharge port file, erecting a signboard, setting a monitoring point, and installing an online monitoring facility according to the requirements of pollution discharge permission management and the like; and a video monitoring system can be installed conditionally. Data of an estuary can be effectively monitored and processed through the monitoring unit, the situation of the estuary can be mastered in real time, and the data recorded by the monitoring unit can be stored through the data storage library, so that subsequent problems can be conveniently found after appearing; according to the invention, the alarm unit can carry out alarm processing when an abnormal condition ...

Optical fiber

The invention relates to an optical fiber comprising a glass part and at least a cross-linked polymer material coating surrounding the glass part, wherein the coatings comprise radical cross-linking oligomers, cationic cross-linking compounds, radical photoinitiators and cationic photoinitiators. The optical fiber has higher modulus of elasticity under room temperature. Sufficient mechanical protection of the optical fiber is ensured by adopting combination of two coatings.

Optical cable water seepage detection device

The invention discloses an optical cable water seepage detection device which comprises at least three water pressure vertical columns and a constant-temperature water tank connected with the water pressure vertical columns, wherein an insertion pipe is arranged at the tail end of a vertical column pipe of each water pressure vertical column; a plurality of insertion openings are formed in each insertion pipe; the at least three water pressure vertical columns are arranged in sequence from high to low; a water trough in the highest water pressure vertical column is communicated with the constant-temperature water tank through a pipeline which is provided with a water pump; a lowest water trough is communicated with the constant-temperature water tank through a first water pipe; water troughs of each two adjacent water pressure vertical columns are communicated through the first water pipe; the vertical height between the bottom end of a connection hole of the water trough of each water ...

Tracking-resistance polyethylene sheath material

The invention relates to a tracking-resistance polyethylene sheath material which is a wire/cable sheath material composition comprising polyethylene, a phosphorus-nitrogen flame retardant, organized phyllosilicate montmorillonite, a surface treating agent and an antioxidant. The tracking-resistance polyethylene sheath material has the advantages of favorable flame retardancy, high mechanical properties, high cabling property, high aging resistance, high heat resistance, low smoke and no release of harmful gas during combustion, and no environment pollution.

High-temperature furnace of high-precision capillary wire drawing machine

The utility model relates to a high-temperature furnace of a high-precision capillary wire drawing machine. The high-temperature furnace comprises a high-temperature furnace body, a high-temperature crucible, a furnace cover and a fixed base, the furnace cover is provided with a feeding hole for a mother rod to pass through, the high-temperature crucible is internally provided with a heating cavity for heating the mother rod, the space between the high-temperature crucible and the high-temperature furnace body is filled with a heat preservation layer, the bottom of the high-temperature furnace body is provided with a wire drawing hole, and the high-temperature crucible is provided with penetrating holes corresponding to the feeding hole and the wire drawing hole for the mother rod to pass through. A wire drawing avoiding opening coaxial with the wire drawing hole is formed in the fixed base, a plurality of high-temperature heaters are embedded in the wall body of the high-temperature crucible ...

Metal lead/optical fiber-mixed cable

The invention relates to a metal lead/optical fiber-mixed cable which is suitable for transmitting electric energy and optical signals, especially transmitting fire signals of cables, and can prevent the fire accident of cables through photoelectric control. The cable adds a single-mode fiber (2) to a metal cable of two, three or multiple cores, wherein the metal lead is a conductive material such as Cu, Al, Au or Ag in the prior art, the single-mode fiber is glass optical fiber or plastic optical fiber in the prior art, and the optical fiber is used for transmitting light signals and fire signals of cables.

Fiber yarn automatic layout method based on optical fiber weaving

The invention provides a fiber yarn automatic layout method based on optical fiber weaving. The method comprises the following steps: acquiring attribute information of a nano polymer film; obtaining a design demand input by a client; designing a path arrangement diagram of the fibers on the nano polymer film according to the attribute information and design requirements; the path arrangement diagram is imported into an equipment industrial personal computer, and the equipment industrial personal computer conducts automatic fiber yarn layout according to the path arrangement diagram. Automatic layout of the fiber yarns on the nano polymer film can be achieved, 1000 + fiber yarns can be woven to form one full backlight plate, the working efficiency and the manufacturing precision of products are effectively improved, the layout number of equipment is reduced, and the purposes of integration and miniaturization are achieved.

Plastic optical fiber prefabricated rod, preparation method and application thereof

The invention belongs to the technical field of multimedia materials of information communication, in particular relates to a plastic optical fiber prefabricated rod, a preparation method and application thereof. The plastic optical fiber prefabricated rod is obtained by reacting a mercaptans chain transfer agent and doped metacrylic acid ester for 1-2 days at a temperature of 70-90 DEG C. The plastic optical fiber prefabricated rod has fewer impurities, and is more stable; and the preparation method is more beneficial to the inhibition of the generation of bubbles.

Graphite calendering device

The utility model relates to a calendering and unwinding device, in particular to a graphite calendering device. The graphite calendering device comprises a compression roller assembly, the compression roller assembly comprises an upper compression roller, a lower compression roller is arranged on the lower side of the upper compression roller, a side compression roller is arranged on the left side of the upper compression roller, a first calendering area is formed between the upper compression roller and the lower compression roller, and a second calendering area is formed between the upper compression roller and the side compression roller. And a release film unwinding shaft, a graphite unwinding shaft and a product winding shaft are arranged around the compression roller assembly. The graphite calendaring device can effectively solve the problem of poor sintered graphite, and ensures that the calendaring graphite does not influence the die cutting use. The yield and the utilizationrate ...

Method for manufacturing optical fibers by utilizing lateral symmetrical slots

The invention relates to a method for manufacturing optical fibers by utilizing lateral symmetrical slots. In the method, panda polarization-maintaining optical fibers are manufactured by the steps of longitudinally making slots symmetrically on two sides of performs, and embedding boron-doped stress rods into the slots on the two sides.

Reinforced central tubular optical fiber belt optical cable

The invention relates to a reinforced central tubular optical fiber belt optical cable, which comprises a cable core and a sheath, wherein the cable core consists of an optical fiber belt, fiber paste, a sleeve and a wrinkle steel belt; and the sheath comprises a sheath material and a steel wire reinforcing piece. In the optical cable, a dual-parallel steel wire central tube structure is entrained in the sheath, so the stress of the optical cable is concentrated, the mechanical strength is improved, and the service life is prolonged.

A primary and secondary reversed interface signal processing method and equipment

A master and backup conversion interface signal process method is to feed back the output signal of the edge plate to an input and of a selector on its own plate directly, that is to take the output signal of its master chip as the input signal directly to form an interface signal of loop state. When the edge plate is at the loop state, the selector has selected the interface signal of the loop state, the connection of the edge plate and the core plate is separated for detecting if the working state of the master chip data channel is normal or forming an independent operation mode by the edge plate not matched by the core plate.

Large-size intelligentized navigation mark revolving lamp and control method

The invention discloses a large-size intelligentized navigation mark revolving modulator and a control method. The revolving modulator comprises a lamp body (1) and a controller (2), wherein a step motor (9) is mounted on the lower portion of a central strut (4) on a chassis (3) of the lamp body (1) to drive a rotary shaft (11) to rotate through a coupling (10), a lens cage (13) is connected withthe rotary shaft (11) by a lower tray (14), the upper end of the central strut (4) is provided with a lamp changer base (18), a lamp changer (19) and a lamp (20), the controller (2) is composed of a control unit capable of providing the rotary control over modulators, controlling the modulator rotate-speed adjustment process and the luminescence, providing the automatic lamp changing control and the automatic control of communication modes. The modulator relates to the large-size intelligentized navigation mark revolving modulator which has the advantages of high intelligentized degree, simple structure ...

Glass fiber reinforced resin reinforcer for optical cable

The invention relates to a glass fiber reinforced resin thread reinforcer for an optical cable. Liquid epoxide resin solidified by a thermal cationic polymerization catalyst or acid anhydride can endure the minimum allowable tension of the peripheral environment after being laid.

Enhanced pavement microgroove optical cable

The invention relates to an enhanced pavement microgroove optical cable, comprising a core part, a wrapping layer and a metallic coating. The enhanced pavement microgroove optical cable is characterized in that terres rares elopements are added in a core part region, the wrapping layer is a cellular quartz added with F, a metallic layer is composed of an internal metallic layer and an external metallic layer, additionally, an insulating coating layer made of ultraviolet curable resin and silicone resin is formed at periphery of the metallic layer.

Skeleton cable

The utility model discloses a skeleton cable, establish including reinforcement and cover the reinforcement outside and the transversal skeleton of personally submitting ring shape, the outside of skeleton is provided with a plurality of centering on the even recess that sets up of reinforcement still includes cylindrical conductor, at least one the cylinder conductor groove of recess for being used for placing cylindrical conductor, the width of tank bottom to the notch in cylinder conductor groove is crescent. Because the cross section of cylindrical conductor is circular, so the cylinder conductor inslot taken out or put into in the general middle part that only need grasp cylindrical conductor just can with cylindrical conductor. Simultaneously because the cross section of skeleton is the annular, the skeleton is the convergent type from outer in to, and the notch in cylinder conductor groove to tank bottom also is the convergent type, can make the position between a plurality of recesses ...

Rare earth ion doped oxyfluoride glass-ceramic fiber

The invention relates to a glass-ceramic fiber, in particular to a rare earth ion doped oxyfluoride glass-ceramic fiber. The fiber is characterized in that an outer cladding of a core is formed by stacking regularly arranged polymer photonic crystal fibers. The fiber has photonic bandgap effect, ensures low transmission loss of light in the core area, has good dispersion characteristic, can be transmitted remotely and realizes true effect of fiber transmission light. The fiber prepared by the method has good flexibility and low cost, is simple to prepare, is suitable for being compatible with the trunk lines and is suitable for local area networks and fiber to the home.

Shooting prevention optical cable

The invention relates to a shooting prevention optical cable, which is composed of a dual-layer steel tape armor and a dual-layer sheath, wherein the dual-layer steel tape armor comprises steel-plastic composite strips which are respectively 0.2 mm thick and 0.3 mm thick, and the dual-layer sheath comprises an internal protective layer and an external protective layer which are respectively 1.0 mm thick and 2.0 mm thick.

Training sample collection method and device, equipment and storage medium

The invention provides a training sample collection method, device and equipment and a storage medium, relates to the technical field of artificial intelligence, in particular to the technical field of computer vision, image processing, deep learning and the like, and can be applied to scenes such as smart cities and meta universe. The first point cloud data comprises position point data acquired by the first radar through a plurality of wave beams, so that the first point cloud data can be downsampled according to the wave beams to which the position point data in the first point cloud data belong so as to obtain downsampled second point cloud data, and the position point data of the first radar can be acquired on the basis of the second point cloud data. And generating a training sample for training the target recognition model. And point cloud data with different resolutions are adopted when the target identification model is trained, so that the identification accuracy is improved.

Porous plastic optical fiber

The invention relates to a porous plastic optical fiber which is composed of a light-transmission substrate material (C) and a reflection surface layer (B), wherein the light-transmission substrate material is methacrylic acid alcohol ester. The porous plastic optical fiber can transmit light on the whole body for a long distance and has high transmissivity, better softness and strong modeling capacity.

Cable bonding auxiliary device

The application discloses cable bonding auxiliary device includes: a pedestal. Be provided with the first cable leading part and the second cable leading part of protruding form on the base, first cable leading part with be provided with the cable guide way between the second cable leading part, second cable leading part's inside is provided with the colloid supply part that has a perfect understanding, the colloid export of colloid supply part is located the side of cable guide way. The application provides an above -mentioned cable bonding auxiliary device installs the front end at the hot melt adhesive rifle, and the effect that makes the cable bond on the wall is more pleasing to the eye, and work efficiency is high moreover.

Method for preparing polymer photonic crystal fiber

The invention relates to a polymer photonic crystal fiber. The fiber is characterized by taking air arrays in the polymer photonic crystal fiber as templates to prepare the silver micro-tube array modified polymer photonic crystal fiber. The holes on the surface of the fiber have regular silver micro-tube shaped structure. The fiber has good conductivity.

Thickness-adjustable composite graphite heat dissipation film and preparation method thereof

The invention provides a thickness-adjustable composite graphite heat dissipation film and a preparation method thereof, and the preparation method comprises the following steps: forming a through hole penetrating through the thickness of a graphene oxide film in the graphene oxide film, and laminating the perforated graphene oxide film and a polymer film to obtain a polymer film/graphene oxide laminated structure; placing the obtained polymer film/graphene oxide laminated structure in a reduction furnace for reduction treatment to obtain a polymer film/graphene laminated structure; placing the obtained polymer film/graphene laminated structure in a carbonization furnace, and carrying out carbonization treatment; the carbonized polymer film/graphene composite structure is placed in a graphitization furnace to be fired, then the graphitization composite structure is rolled, and a composite graphite heat dissipation film finished product with the needed thickness is obtained. The final product ...

Method for manufacturing flame-retardant polyethylene sheathing material for optical cable

The invention relates to a method for manufacturing a flame-retardant polyethylene sheathing material for an optical cable. The flame-retardant polyethylene sheathing material consists of raw materials of polyethylene, magnesium hydroxide and sodium stearate. The mechanical property and the flame-retardant performance of a composite system can be effectively improved due to the addition of the sodium stearate.

Polyethylene sheathing material

The invention relates to a polyethylene sheathing material which consists of high-density polyethylene resin, medium-density polyethylene resin, linear low-density polyethylene resin and an antioxidant processing aid. The polyethylene sheathing material is prepared by adopting the following steps of: weighing, mixing, extruding, dicing, drying and packaging.

Of drop shape self -bearing type optical cable

The utility model discloses an of drop shape self -bearing type optical cable, including strand core, cable core, strand core, cable core are equipped with the cavity, and the diameter of strand coreis less than the diameter of cable core, and the structure that oversheath, cable core, strand core formed is the water droplet column structure, the cable core is including the metal center reinforcement that is located the cable core center, the periphery cladding of metal center reinforcement has the HDPE sheath, the peripheral ring of HDPE sheath is around being provided with the optical fiberunit layer, the optical fiber unit layer includes the three optical fiber unit of more than or equal to, optical fiber unit is including solidification optic fibre, ferrule, the ferrule cladding is in solidification optic fibre periphery, optical fiber unit layer peripheral ring is around being provided with stainless steel pine sleeve pipe, stainless steel pine sheathed tube periphery from interior ...

Plastic fiber material

The invention provides a plastic fiber material. A resin and a processing assistant are utilized to improve the processability of the plastic fiber, lower the processing temperature when drawing the fiber, and increase the extrusion speed, thereby ensuring the roundness of the core-sheath structure of the fiber, lowering the non-inherent loss and producing the high-quality plastic fiber.

Optical fiber filling factice supply system

The invention discloses an optical fiber filling factice supply system. The optical fiber filling factice supply system comprises a factice barrel area, a factice conveying area and a feed terminal area. A factice barrel is arranged in the factice barrel area. The discharge port of the factice barrel is communicated with an upstream conveying pipeline. An upstream feed valve is arranged on the upstream conveying pipeline. A first midstream conveying pipeline communicated with the upstream conveying pipeline and a downstream conveying pipeline and a second midstream conveying pipeline communicated with the upstream conveying pipeline and the downstream conveying pipeline are arranged in the factice conveying area. A first oil pump is arranged on the first midstream conveying pipeline. A second oil pump is arranged on the second midstream conveying pipeline. The feed terminal area comprises the downstream conveying pipeline communicated with the first midstream conveying pipeline and the ...

Basement lighting power consumption control method and system using building information model

The invention discloses a basement lighting power consumption control method and system using a building information model, and the method comprises the following steps: obtaining a building information model drawing of a basement, averagely dividing the basement into a plurality of subareas in advance, setting the number of the subareas as k, obtaining the sum M of the power consumption of the basement in the current period, when the electricity consumption M is greater than an electricity consumption alert value, obtaining the residual duration of the current belonging period, if the residual duration of the current belonging period is greater than a duration threshold value, obtaining the feature information of each subarea, and controlling the lighting lamp of a certain subarea to work in a first state or a second state according to the feature information; otherwise, the illuminating lamps of all the partitions in the basement are controlled to work in a first state, the illuminating ...

Heat-resisting optical cable

The invention relates to a plastic optical fiber cable, in particular to a plastic optical fiber cable which is excellent in heat-resisting performance for a long term at high temperature. A sheath structure of the optical fiber cable consists of a protective coating layer containing an ethylene-vinyl alcohol copolymer and a light shielding coating layer covered outside the protective coating layer, wherein the protective coating layer has the excellent effect of preventing monomers and low polymers which are contained in the light shielding coating layer from being dissolved and diffused in plastic optical fibers (POF).

Hydrophobically associating dimethyl diallyl ammonium chloride cation flocculating agent and preparation method thereof

The invention relates to a hydrophobically associating dimethyl diallyl ammonium chloride cation flocculating agent and a preparation method thereof, which concretely relates to a copolymer by taking dimethyl diallyl ammonium chloride as a main body. According to the invention, a hydrophobic group is introduced in a main chain of poly-dimethyl diallyl ammonium chloride, interacting effect of an organic matter in the flocculating agent and sewage can be increased, performance of the flocculating agent is increased, by adding an auxiliary agent, the fluidity and stability of the product can be increased. The prepared cation flocculating agent is in a liquid state, and has the advantages of low production cost, fast dissolving speed, friendly environment, energy saving and consumption reduction, convenient use and stable performance.

Method and device for acquiring real track of robot, equipment and medium

The invention provides a method, a device and equipment for acquiring a real track of a robot and a medium, and relates to the technical field of artificial intelligence, in particular to the technical fields of computer vision, image processing, deep learning and the like. According to the specific implementation scheme, the robot is controlled to advance in a preset site according to a preset track, and a camera can collect a positioning reference object identifier in a plurality of positioning reference object identifiers in real time in the advancing process of the robot; the plurality of positioning reference object identifiers are configured on the ground along a preset track; acquiring a video acquired by a camera when the robot advances according to a preset track; based on each frame of image in the video and the information of the positioning reference object identifier in each frame of image, obtaining corresponding pose information when the camera collects each frame of image ...

Rare earth ion doped oxyfluoride glass-ceramic fiber

The invention relates to design of a fiber waveguide structure and fiber manufacturing, in particular to a rare earth ion doped oxyfluoride glass-ceramic fiber. The invention comprises a core layer and five claddings, wherein the relative refringence of the core layer and each cladding is relative to the fifth cladding; the relative refringence delta1 of the core layer is not less than 0.6% and not more than 0.8%; the relative refringence deltaclad1 of the first cladding is not less than minus 0.5% and not more than minus 0.4%; the relative refringence deltaclad2 of the second cladding is not less than minus 0.4% and not more than minus 0.35%; the relative refringence deltaclad3 of the third cladding is not less than 0% and not more than 0.1%; the relative refringence deltaclad4 of the fourth cladding is not less than minus 0.1% and not more than 0%; and the fifth cladding is made of pure silica and the refractive index of the fifth cladding is the refractive index of the silica glass.

Molding equipment for magnetic element production

The utility model discloses forming equipment for magnetic element production, which is characterized in that a cooling pipe is wound on the surface of an equipment body, and a plurality of supporting seats are arranged at the bottom of the equipment body; the supporting seat comprises a supporting column and a seat body, a rubber pad is arranged at the bottom of the seat body, an internal threaded section penetrating through the rubber pad is formed in the seat body, and the bottom of the seat body is movably connected with the steering gear; the bottom of the steering gear is connected with the connecting plate; a spring is wound outside the elastic rod; three connecting rods are arranged at the bottom of the connecting plate, and idler wheels are arranged between the connecting rods and connected with the connecting rods through shaft rods. The rolling structure is mounted and dismounted through the external thread section and the internal thread section, convenience and rapidness are ...

Connection method of porous copper and copper

The invention belongs to the technical field of material connection, and particularly relates to a connection method of porous copper and copper. The preparation method comprises the following steps: (1) putting a block copper material into a muffle furnace for oxidation treatment; (2) cutting the porous copper material into a required specification; and (3) the cut porous copper material and the oxidized block copper material are attached together and then put into a reduction furnace to be sintered, and the well-connected porous copper-copper material can be obtained. According to the method, the surface roughness of the copper material is improved by firstly oxidizing the block copper material, the process is simple, the rough surface of the block copper material is attached to the porous copper, pressure is applied to the contact surface for reduction sintering, an oxide layer on the surface of the copper material can be further reduced into the simple copper substance during reduction ...

Mounting structure and mounting method of indoor hung ceiling

The invention relates to an indoor mounting structure of a building, in particular to a mounting structure and a mounting method of an indoor hung ceiling. The lower end face of a roof is provided with a fixing hole and a groove. One end of a steel strip connecting piece is fixed to the fixing hole through a fixing bolt, while the other end connects the upper end face of the hung ceiling below the steel strip connecting piece through a back bolt, and the back bolt above the steel strip connecting piece is just positioned in the groove. The upper end face of the hung ceiling and the lower end face of the roof are also filled with viscose glue layers. The invention not only can improve the mounting firmness of the hung ceiling, but also can avoid drilling mounting holes on the surface of the hung ceiling, has convenient construction and improves the mounting efficiency.

一种苯并咪唑衍生物或其盐的制备方法

A process for preparing the benzimidazole derivatives used to prepare the agiotonin II antagon, such as candesartan ester, is disclosed.

High-power optical fiber

The invention relates to a high-power optical fiber, which comprises a core part, a wrapping layer and a metal layer. The high-power optical fiber is characterized in that: rare-earth elements are added into the core part; the wrapping layer is porous quartz added with F; and the metal layer is formed by an inner metal layer and an outer metal layer, and an insulating coating layer of silicone resin of ultraviolet curing resin is also formed outside the metal layer. The high-power optical fiber improves luminescence power; and a dual-layer metal wrapped structure improves the efficiency of light transmission, and the rigidity of the optical fiber is maintained without increasing the outer diameter.

Method and equipment for transmitting data flow

This invention provides a method and equipment for transmitting data flows, in which, the method includes: using a part of key words of the data flow as the index to look for corresponding items in a tree list to look for corresponding dynamic chain list according to the content in the corresponding list, taking the rest part of the key words as the index to look for corresponding nodes in the dynamic list and getting outlet-interface information in the nodes to transmit said data flow. This invention also discloses equipment including: a management module, a tree list looking up module and a dynamic link looking up module and a transmission module.

Preparation method of microstructure fiber

The invention relates to a preparation method of microstructure fiber. The method comprises the following steps: 1) selecting a quartz or crystal fiber rod of which diameter is 10-20mm; and 2) setting the corresponding processing conditions of a laser to bore the selected quartz or crystal fiber rod in the radial direction; and 3) performing fibre drawing under 1800-2000 DEG C to prepare the microstructure fiber. The invention has the following beneficial effects: the manufacturing processes are reduced, the manufacturing cost is reduced and the stability of the finished product is increased.

Soybean high-yield fertilizer and preparation method thereof

The invention discloses a soybean high-yield fertilizer and a preparation method thereof, and belongs to the technical field of crop fertilizer preparation. The soybean high-yield fertilizer is prepared from the following components in parts by weight: 100 to 120 parts of livestock manure, 40 to 60 parts of coconut shell powder, 20 to 30 parts of compound fertilizer, 8 to 14 parts of plant fungicide, 0.5 to 1.2 parts of microbial agent, 15 to 28 parts of propylene glycol alginate, 8 to 15 parts of sodium hydrogen sulfite and 3 to 5 parts of polypropylene glycol. The soybean high-yield fertilizer can provide nutrients needed by soybean growth, improve the soil structure of soybean planting, has sterilization and deinsectization effects, can effectively reduce the insect pest rate and disease rate and promote robust growth of soybean plants, and is reasonable in formula, balanced in nutrition, simple in preparation method, green, free of pollution and suitable for large-scale production.

Preparation method of amorphous optical fiber preform

The invention relates to an amorphous optical fiber preform. The preparation method of the preform comprises the following steps: mixing tetraethoxysilane, ethanol and water in a ratio of 1:4:8 and adding hydrochloric acid at 110 DEG C, 130 DEG C, 150 DEG C, 170 DEG C and 190 DEG C respectively to perform progressive heat treatment. By adopting the method, the micropores in the preform can be reduced.

Method for detecting content of chlorine ions in high-purity antimony oxide

The invention discloses a method for detecting content of chlorine ions in high-purity antimony oxide. The method comprises the steps of firstly, establishing a standard relationship curve of the content of the chlorine ions and absorbance, dissolving the high-purity antimony oxide in a tartaric acid medium, reacting with silver nitrate to generate a colloidal silver chloride suspension, detecting through a spectrophotometer, and figuring out the content of chlorine. According to the method, the content of the chlorine ions in the high-purity antimony oxide can be rapidly and accurately analyzed and detected, the testing result is stable, the operation is simple, the equipment requirement is low, the analysis cost is low, and the method can be popularized and used.

Device and method for coating slurry on inner wall of copper pipe

The invention belongs to the technical field of slurry coating, and particularly relates to a copper pipe inner wall slurry coating device and a copper pipe inner wall slurry coating method. The copper pipe inner wall slurry coating device comprises a parameter control module, and a side dispensing module, a rotary coating module and a heating drying module which are electrically connected with the parameter control module, the side dispensing module comprises a side dispensing needle, one end of the side dispensing needle is connected with the charging barrel, the other end of the side dispensing needle is closed, a discharge port is formed in the side wall of the side dispensing needle, and the side dispensing needle can move left and right relative to the rotary coating module; the rotary coating module comprises a platform, supporting plates are arranged at the two ends of the platform, supporting rods and rotary rolling wheels are arranged on the supporting plates, and the copper pipe ...

Hot melt adhesive coating device

The application discloses hot melt adhesive coating device includes: platelike heater block, the last fixed surface of heater block has the closed slots, be provided with isolation parts in the closed slots, be used for with the closed slots is separated to become to be used for the first region of hot melt adhesive deposited and be used for preheating the second area of hot melt adhesive, the closed slots is provided with into bush and play bush for tight tube fiber gets into and leaves first region, isolation parts still is connected with lifting unit spare, is used for going up and down isolation parts, so that first region with the 2nd region connected or isolation. The utility model provides an above -mentioned hot melt adhesive coating device need not use the screw rod, can occupy under the condition in a small amount of space, carries out the hot melt adhesive coating.

OPPC optical cable rewinding device

The invention discloses an OPPC optical cable rewinding device which comprises a fixing base, an unwinding mechanism is arranged on one side of the top of the fixing base, the unwinding mechanism is composed of two upper connecting plates and two lower connecting plates, the bottoms of the two lower connecting plates are fixedly connected with the fixing base, the upper connecting plates and the lower connecting plates are connected through bolts, and the upper connecting plates and the lower connecting plates are connected through bolts. A penetrating hole is formed between the upper connecting plate and the lower connecting plate, an optical cable roller is rotationally connected to the inner wall of the penetrating hole, a winding mechanism is arranged on one side of the top of the fixing base, the top of the fixing base is connected with a supporting base through a bolt, and a fixing groove is formed in the top of the supporting base. By means of the OPPC optical cable winding device ...

Tracking resistant polyethylene sheath material for ADSS optical cable

The invention relates to a tracking resistant polyethylene sheath material for an all-dielectric self-supporting (ADSS) optical cable. In the sheath material, a tracking resistant aid, namely a trimethyl trifluoro-propyl siloxane polymer elastomer, is added in a formula to enhance the surface thermostability and toughness of polyethylene (PE) materials, so the tracking resistant effect is achieved.

Improved optical fiber structure

The invention relates to an improved optical fiber structure. Fiber cores at the incident end of an optical fiber transmission line are arranged in a cylindrical shape, and fiber cores at the outgoing end are arranged in a matrix shape to be in the same mode as grids at a receiving end, are conveniently connected with a receiving grid and effectively improve the receiving efficiency of an optical signal.

Providing access to data within a migrating data partition

Data within a database partition that is being migrated may be made available for access. Data within a database partition may be selected for migration. Writes to the selected data may be prevented while the data is being migrated. Writes to other data, or read access any of the partition, may be allowed during the migration of the selected data. Rollback events may be detected for a database partition that is being migrated, halting the further selection of data for migration and deleting the successfully migrated data at the copy of the database partition being created.

Self-supporting comprehensive cable

The invention relates to a self-supporting comprehensive cable, in particular to an indoor and outdoor universal self-supporting comprehensive cable comprising a cable core, a copper pair wire, a stranded galvanized steel wire and a aramid reinforcing layer. The self-supporting comprehensive cable is not switched indoors and outdoors while working.

Method for quickly and continuously preparing high-molecular-weight polyacrylamide

The invention relates to a method for quickly and continuously preparing high-molecular-weight polyacrylamide. According to the method, microwaves are introduced into a belt type reactor, so that the problems that during a kettle type reaction, the heat of polymerization is difficult to discharge, a colloid is difficult to take out and the monomer residual volume is high are solved, and the microwaves are favorable for improving the production efficiency of polyacrylamide. The method has the main technical features that an acrylamide (AM) aqueous solution or an AM aqueous solution, a comonomer aqueous solution, an auxiliary agent, a chain transfer agent and the like are added into a blending tank according to a certain mass ratio, the blending tank is adjusted to a certain temperature, nitrogen is inflated to remove oxygen for a certain period of time, then the solution in the blending tank and an initiating agent solution are continuously added to a conveying belt at a certain speed, and ...

Plane region area calculation method and device, electronic equipment and storage medium

The invention provides a plane region area calculation method and device, electronic equipment and a storage medium, relates to the technical field of artificial intelligence, in particular to the technical fields of computer vision, image processing, deep learning and the like, and can be applied to scenes such as smart cities and meta universe. The specific scheme is as follows: obtaining a binocular image shot by a binocular camera for a scene; determining a three-dimensional point cloud corresponding to the scene in the camera coordinate system according to the camera internal reference and the binocular image of the binocular camera; fitting to obtain a plane equation of a target plane in the scene based on the three-dimensional point cloud corresponding to the scene; a three-dimensional point cloud corresponding to a mask graph is obtained through the camera internal reference and the mask graph of the target area in the target plane in combination with a plane equation; and projecting ...

Mammary gland biopsy excision blood coagulation device with radio frequency coagulation cutter tube

The invention discloses a mammary gland biopsy excision blood coagulation device with a radio frequency coagulation cutter tube. The device comprises an outer tube rotating gear, a linear driving gear, a radio frequency electric connecting piece, a sample collector, a vacuum catheter kit, a puncture cutter, a sampling groove, an outer tube, a cutting knife tube, an indicating shaft sleeve, a connecting piece and an outer tube rotating device. According to the invention, the cutting edge part of the cutting knife tube is changed into a surgical electrode of a radio frequency coagulation cuttingdevice, radio frequency current passes through the cutting edge of the cutting knife tube and is conducted to pathological tissues to be cut, and bleeding is stopped while the tissues are cut. Because the cutting is not a mechanical mode, the problem that a cutting edge becomes blunt does not exist. Meanwhile, calcification points can be crushed through spark discharge. A heat affected zone generated ...

Scratch-resistant low-smoke halogen-free fire-resistant jacket material

The invention relates to a scratch-resistant low-smoke halogen-free fire-resistant jacket material. The scratch-resistant low-smoke halogen-free fire-resistant jacket material comprises the following components in percentage by weight: 15 to 25 percent of ethylene-vinylacetate copolymer, 5 to 10 percent of polyethylene, 5 to 10 percent of polyethylene elastomer, 45 to 60 percent of fire retardant, 5 to 10 percent of compatilizer, 0.5 to 2 percent of wear-resistant agent, 0.5 to 1.0 percent of lubricant and 0.1 to 0.5 percent of antioxidant. The scratch-resistant low-smoke halogen-free fire-resistant jacket material is environmentally friendly and has excellent flame resistance, low combustion smoke volume and small irritation to people. In a cable outer jacket manufactured by the material, surface wear resistance and scratch resistance are excellent; scratches are difficult to generate on the surface in the construction and using processes; and high appearance quality can be maintained.

Heat-resistant cable

The invention relates to a heat-resistant cable. A sheath structure comprises a fluoroolefins-contained copolymer and polyamide resin which both have extremely-high adhesion and can mechanically protect the cable and restrict loosening possibility under a high-temperature environment. Moreover, the copolymer has high oxygen shielding property and can restrict transmission loss increase caused by the oxidative degradation of POF (Plastic Optical Fiber) under the high-temperature environment.

Permanent magnet tile preparation forming system

The utility model discloses a permanent magnet magnetic shoe preparation forming system, a cooling pipe of sintering forming equipment is movably connected and communicated with an external pipe, due to different sintering temperatures, a cooling medium needs to be replaced according to different cooling requirements, and meanwhile, the external pipe body for conveying the cooling medium needs to be replaced. Therefore, a convenient and fast connecting joint needs to be specifically designed and is convenient to mount, dismount and replace. Meanwhile, the rolling structure is assembled and disassembled through the external thread section and the internal thread section, convenience and rapidness are achieved, the moving mode and the supporting mode can be provided, and the requirements of various conditions are met.

Method for preparing polymer photonic crystal fiber

The invention relates to polymer photonic crystal fiber and a preparation method thereof in the technical field of optical communication. An outer-core cladding of the fiber is formed by piling the regularly arranged polymer photonic crystal fibers, has photonic band gap action, ensures the low transmission loss or the loss of light in a core area, has the good dispersion characteristics, can carry out remote-distance transmission and realizes the function of transmitting light through fibers in a true sensor. The fiber prepared by using the method provided by the invention has good flexibility, simple manufacture and low cost, is suitable for being compatible with a backbone line and suitable for LAN (Local Area Network) and FTTP (Fiber-To-The-Premises).

METHOD AND DEVICE FOR ENCODING AND DECODING OF SYMBOL SEQUENCES WHEREIN EACH SYMBOL MAY HAVE ONE OUT OF THREE OR MORE POSSIBLE SYMBOL VALUES

A method for compressing a symbol sequence, wherein each symbol may have one out of three or more possible symbol values, said method comprises the steps of modifying the symbol sequence by replacing each run pair, which contains a first run of symbols of a most frequent symbol value and a second run of symbols of a second most frequent symbol value, by a further symbol value not comprised in the three or more possible symbol values, generating a binary sequence comprising all replaced run pairs and compression encoding the binary sequence and the modified symbol sequence. 15-. (canceled)6. A method for compressing a symbol sequence , wherein each symbol has one out of three or more possible symbol values , said method comprising the steps ofmodifying the symbol sequence by replacing each run pair, which contains a first run of symbols of a most frequent symbol value immediately followed by a second run of symbols of a second most frequent symbol value, by a further symbol value not comprised in the three or more possible symbol values,generating a binary sequence comprising all replaced run pairs andcompression encoding the binary sequence and the modified symbol sequence.7. A encoder for performing the method of .8. A method for decompressing a compressed symbol sequence claim 6 , wherein each symbol has one out of three or more possible symbol values claim 6 , said method comprising the steps ofdecoding a different symbol sequence, said different symbol sequence comprising symbols of a further symbol value not comprised in the three or more possible symbol values, and decoding a sequence of run pairs comprised in a binary sequence, the number of run pairs in the sequence of run pairs equalling the number of symbols of said further symbol value in the different symbol sequence,replacing, in the different sequence, the symbols of said further symbol value by the run pairs wherein order of the run pairs is maintained.9. A decoder for performing the method of .10. A ...

METHOD FOR ENCODING/DECODING A 3D MESH MODEL THAT COMPRISES ONE OR MORE COMPONENTS

3D mesh models are represented by three types of data: connectivity data, geometry data and property data. The surface of a 3D object is a triangle mesh. 3D meshes contain huge amounts of data that need to be compressed efficiently. Additionally to the common world coordinate system for the complete model and local coordinate system for a single triangle, an individual component coordinate system for each connected component is used. The component coordinate system is used to normalize the orientation of the respective component for quantization and de-quantization. This improves the accuracy of encoded 3D mesh models after quantization/de-quantization, particularly if a 3D mesh model comprises one or more distinct components. 1. A method for encoding a 3D mesh model , wherein the 3D mesh model comprises one or more components , comprising the steps ofdetermining an orthonormal basis in 3D space for each of the one or more components, wherein Principal Component Analysis based on the vertices of a component is used and wherein each vertex belongs to one or more triangles, and wherein, for said Principal Component Analysis, each vertex of the component is assigned a weight which is determined from the areas of the triangles to which the vertex belongs;encoding object coordinate system information of the component;normalizing the orientation of each of the one or more components relative to a world coordinate system, wherein for each of said one or more components a transformation is used that is obtained from the determined orthonormal basis of the component;quantizing the normalized vertex positions; andencoding the quantized vertex positions.2. The method according to claim 1 , wherein the step of determining an orthonormal basis comprises calculating a component mean for each component claim 1 , wherein for the calculating said weight of a vertex is the sum of the areas of the triangles to which the vertex belongs.3. The method according to claim 1 , wherein the ...

METHOD FOR ENCODING FLOATING-POINT DATA, METHOD FOR DECODING FLOATING-POINT DATA, AND CORRESPONDING ENCODER AND DECODER

An algorithm for efficiently compressing floating-point data in 3D meshes is disclosed. 3D meshes are represented by topology data, geometry data and property data. Geometry data specify vertex locations and are usually represented by floating-point coordinates. While geometry data are usually compressed by quantization, prediction and entropy coding, the present invention uses no prediction. A floating-point number consists of mantissa and exponent, and normally the exponent, sign and mantissa are compressed separately. A method for encoding floating-point formatted data comprises determining if a current floating-point value was previously stored in a memory, storing the current value in the memory if it was not previously stored in the memory, and encoding it. Otherwise, if the current floating-point value was previously stored in a memory, the storage position of the value within the memory is determined and a reference pointing to the storage position is encoded. 1. A method for encoding floating-point formatted data , wherein the floating-point format comprises at least an exponent and a mantissa and wherein the floating-point formatted data are geometry data of a 3D mesh model and comprise texture coordinates , the method comprising steps ofdetermining if a current floating-point formatted data value was previously stored in a memory, the memory having predefined size, wherein separate memories are used for different exponents and each of the memories is associated with an exponent;if the current floating-point formatted data value was not previously stored in said memory, storing it in the memory, and encoding it;otherwise, determining the storage position of said value within the memory, and encoding a reference pointing to the storage position; andencoding the exponent, an indication of the exponent or a pointer pointing to the memory associated with the current exponent;wherein said steps of determining if a current value was previously stored in a memory ...

TEXTURE-PATTERN-ADAPTIVE PARTITIONED BLOCK TRANSFORM

The invention is related to encoding an image block of an image using a partitioned block transform. The inventors recognized that applying a texture-pattern associated invertible mapping to the pixels of a first partition, said first partition resulting from partitioning said image block according to a current texture pattern with which said texture-pattern associated invertible mapping is associated, allows for limiting the maximum number of required first 1-D transforms to not exceeding a number of columns in the image block as well as limiting the maximum number of required second 1-D transforms to not exceeding a number of rows in the image block, also. Achieving limitation of maximum required 1-D transforms enables more efficient implementation on hardware and improves encoding performance but also allows for further partitions according to texture patterns which comprise at least one of multiple strips, texture patterns with highly unsymmetrical pixel distribution and non-directional texture patterns.

INPAINTING METHOD AND APPARATUS FOR HUMAN IMAGE, AND ELECTRONIC DEVICE

The disclosure provides an inpainting method for a human image, an inpainting apparatus for a human image and an electronic device. An image to be processed is received. The image to be processed contains a human image to be processed. A three-dimensional human body model corresponding to the human image to be processed, camera parameters, and human body posture information are generated based on the image to be processed. A segmentation image corresponding to the human image to be processed is generated based on the image to be processed. A processed human image corresponding to the human image to be processed is generated based on the three-dimensional human body model, the camera parameters, the human body posture information, and the segmentation image. 1. An inpainting method for a human image , comprising:obtaining an image to be processed, wherein the image to be processed contains a human image to be processed;generating a three-dimensional human body model corresponding to the human image to be processed, camera parameters, and human body posture information based on the image to be processed;generating a segmentation image corresponding to the human image to be processed based on the image to be processed; andgenerating a processed human image corresponding to the human image to be processed based on the three-dimensional human body model, the camera parameters, the human body posture information, and the segmentation image.2. The method of claim 1 , wherein generating the three-dimensional human body model corresponding to the human image to be processed claim 1 , the camera parameters claim 1 , and the human body posture information based on the image to be processed comprises:generating the three-dimensional human body model corresponding to the human image to be processed, the camera parameters, and the human body posture information by inputting the image to be processed into a human body parameterization model.3. The method of claim 2 , wherein the ...

WAVELENGTH CONVERSION SYSTEM AND PROCESSING METHOD

A wavelength conversion system including: A. a first nonlinear optical crystal to which first pulsed laser light having a first polarization state and a first wavelength and second pulsed laser light having a second polarization state and a second wavelength are inputted and which is configured to output in response to the input the second pulsed laser light and first sum frequency light having the second polarization state and a third wavelength produced by sum frequency mixing of the first wavelength with the second wavelength; and B. a second nonlinear optical crystal to which the first sum frequency light and the second pulsed laser light outputted from the first nonlinear optical crystal are inputted and which is configured to output in response to the input third pulsed laser light having a fourth wavelength. 1. A wavelength conversion system comprising:A. a first nonlinear optical crystal to which first pulsed laser light having a first polarization state and a first wavelength and second pulsed laser light having a second polarization state and a second wavelength are inputted and which is configured to output in response to the input the second pulsed laser light and first sum frequency light having the second polarization state and a third wavelength produced by sum frequency mixing of the first wavelength with the second wavelength; andB. a second nonlinear optical crystal to which the first sum frequency light and the second pulsed laser light outputted from the first nonlinear optical crystal are inputted and which is configured to output in response to the input third pulsed laser light having a fourth wavelength.2. The wavelength conversion system according to claim 1 ,wherein the first and second nonlinear optical crystals are each a CLBO crystal.3. The wavelength conversion system according to claim 1 ,wherein the second wavelength is longer than the first wavelength, the first wavelength is longer than the third wavelength, and the third wavelength ...

Method and device for adaptively quantizing parameters for image coding

Image or video encoding standards provide different intra prediction modes, which may employ a spatial intra prediction direction and a DFT. Picture encoding is further optimized by an adaptive quantization of the frequency domain parameters. A method for quantizing or inverse quantizing frequency domain parameters that refer to a residual, which is the difference between a current image and a predicted image, is disclosed. If the predicted image was obtained by spatial intra prediction (10) using an intra-prediction direction, one of a plurality of different quantization matrices is selected (14) and used for quantizing (13) or inverse quantizing said parameters. The selection depends on the intra-prediction direction (s10) that was used. As a result, for images with horizontal prediction direction the quantization is finer for horizontal structures than for vertical structures, and vice versa. Advantageously, no extra header bits need to be introduced to indicate the de-quantization matrices.

Method for encoding a sequence of integers, storage device and signal carrying an encoded integer sequence and method for decoding a sequence of integers

The invention is related to a method for encoding a sequence of integers, to a storage device and to a signal carrying such encoded sequence and to a method for decoding such encoded sequence. Said method comprises the steps of identifying a contiguous sub-sequence in the sequence of integers wherein said sub-sequence comprises interrelated integers having a same prefix when being variable length encoded and an independent last integer, and forming a code for the contiguous sub-sequence by help of code for an indication of the number of interrelated integers in said contiguous subsequence, a code of a prefix indication and the suffixes of variable length codes of the integers in the contiguous is sub-sequence. Thus, if there are n integers of which each is encoded with the same prefix then, instead of n individual prefixes for the integers, a single prefix for the contiguous subsequence is sufficient.

method for encoding an integer sequence, storage device and signal carrying an encoded sequence of integers and method for decoding an integer sequence

MéTODO PARA CODIFICAR UMA SEQUêNCIA DE NúMEROS INTEIROS, DISPOSITIVO DE ARMAZENAMENTO E SINAL PORTANDO UMA SEQUêNCIA CODIFICADA DE NúMEROS INTEIROS E MéTODO PARA DECODIFICAR UMA SEQUêNCIA DE NúMEROS INTEIROS. A invenção refere-se a um método para codificar uma sequência de números inteiros, a um dispositivo de armazenamento e a um sinal portando tal sequência codificada e a um método para decodificar tal sequência codificada. Dito método compreende as etapas de identificar uma subsequência contígua na sequência de números inteiros em que a dita subsequência compreende números inteiros interrelacionados tendo um mesmo prefixo ao ser codificado de comprimento variável e um último número inteiro independente, e formar um código para a subsequência contígua com auxílio do código para uma indicação do número de números inteiros interrelacionados na dita subsequência contígua, um código de uma indicação de prefixo e os sufixos de códigos de comprimento variável dos números inteiros na subsequência contígua. Desse modo, se há n números inteiros dos quais cada é codificado com o mesmo prefixo então, em vez de n prefixos individuais para os números inteiros, um prefixo simples para a subsequência contígua é suficiente. METHOD FOR ENCODING AN ENTIRE NUMBER SEQUENCE, STORAGE DEVICE AND SIGNAL CARRYING AN ENTIRE NUMBER CODED SEQUENCE AND ENTIRE NUMBER SEQUENCE METHOD. The invention relates to a method for encoding an integer sequence, a storage device and a signal carrying such an encoded sequence, and a method for decoding such an encoded sequence. Said method comprises the steps of identifying a contiguous subsequence in the integer sequence wherein said subsequence comprises interrelated integers having the same prefix when being encoded in variable length and a last independent integer, and forming a code for the contiguous subsequence with code assistance for an indication of the number of interrelated integers in said contiguous subsequence, a code of a prefix indication ...

Method and apparatus for encoding groups of pictures of a video sequence, each of said groups including an intra encoded picture and more than two encoded pictures

In known video coding standards there are basically three types of pictures: I, P and B. Video sequences are usually coded in a group of picture structure wherein several P or B pictures are coded following one I picture. However, this GOP structure has some disadvantages with respect to error resilience and storage medium recording. If a P picture is lost e.g. due to transmission channel error, then the subsequent P pictures can not be reconstructed correctly, and the error will propagate temporally and cause unpleasing artifacts. This GOP structure is designed for forward play only and makes complicated a reverse play operation. According to the invention, a reversible GOP structure is used for the video encoding and decoding. The RGOP structure contains both, a forward encoding chain and a backward encoding chain. Each picture in the RGOP structure is assigned to only one of these chains and the video pictures of adjacent RGOP chains are interleaved.

Novel biomimetic hydrogel materials

Novel biomimetic hydrogel materials and methods for their preparation. Hydrogels containing acrylamide-functionalized carbohydrate, sulfoxide, sulfide or sulfone copolymerized with a hydrophilic or hydrophobic copolymerizing material selected from the group consisting of an acrylamide, methacrylamide, acrylate, methacrylate, vinyl and a derivative thereof present in concentration from about 1 to about 99 wt.% and methods for their preparation. The method of use of the new hydrogels for fabrication of soft contact lenses and biomedical implants.

Method for lossless compressing prefix-suffix-codes, method for decompressing a bit sequence representing integers or symbols encoded in compressed prefix-suffix-codes and storage medium or signal carrying compressed prefix-suffix-codes

The invention is related to lossless compression of prefix- suffix-codes wherein a prefix comprises unary code, and to corresponding decompression. The method for lossless compressing prefix-suffix-codes (VLCl, VLC2, VLC3) comprises the steps of forming a first contiguous bit sequence (FBS) from the prefixes (PRFXl, PRFX2, PRFX3), and lossless compressing the first contiguous bit sequence (FBS) by removing redundancy related to the difference between the first value's frequency in the first contiguous bit sequence (FBS) and the second value's frequency in the first contiguous bit sequence (FBS). Bit values are unevenly distributed in the prefixes while distribution of bit values in the suffixes is more even. Therefore, better compression is achievable if the prefixes are compressed separately.

Sweet flavor modifier.

Compuestos con la fórmula estructural (I), o sales, solvatos y/o ésteres farmacéuticamente aceptables de los mismos. Estos compuestos son de utilidad como modificadores del sabor dulce. La presente invención también incluye composiciones que comprenden los compuestos de la presente y métodos para mejorar el sabor dulce de composiciones ingeribles. Además, la presente invención provee métodos para preparar los compuestos.

Image stitching

An image stitching method and apparatus, a device, and a medium is provided. An implementation solution is: obtaining a first image and a second image, where the first image and the second image have an overlapping area; determining a first stitching line segment of the first image and a second stitching line segment of the second image, where the second stitching line segment has a first matching line segment in the first image; determining a first stitching area of the first image based on the first stitching line segment and the first matching line segment; configuring a first target canvas at least based on the first stitching area; determining, for each pixel of a plurality of pixels included in the first stitching area, a corresponding mapping pixel in the first target canvas; and mapping pixel values of the plurality of pixels included in the first stitching area to the corresponding mapping pixels in the first target canvas, respectively, to obtain an image to be stitched of the first image.

Method for encoding/decoding a 3d mesh model that comprises one or more components

一种安防巡检式洗地机

本实用新型涉及一种安防巡检式洗地机，包含：底座(1)；水箱(2)，位于所述底盘(1)的上部，包括：红外热像仪(21)，设置于所述水箱(2)顶面前部，用于在夜间实时获取视频和/或图片；可见光摄像机(22)，设置于所述水箱(2)顶面后部，用于在白天实时获取视频和/或图片；激光雷达(3)，设置于所述底座(1)前端，用于确定行进路径中目标位置；中央控制单元(4)，与所述红外热像仪(21)、可见光摄像机(22)以及激光雷达(3)电连接，用于根据所述视频和/或图片以及所述目标位置确定行驶路径中的安防状况。本实用新型通过设计一种具有安防巡检功能的洗地机，达到洗地、安防巡检同时进行的目的，降低成本，提高效率。

Laser system and method for manufacturing electronic devices

In a laser system according to an aspect of the present disclosure, the following components are disposed: a first container that accommodates a first heater and a first crystal holder holding a first nonlinear crystal and includes a first light incident window via which laser light is incident and a first light exit window via which the laser light exits; a second container that accommodates a second heater and a second crystal holder holding a second nonlinear crystal and includes a second light incident window via which the laser light is incident and a second light exit window via which the laser light exits; and a stage that holds the first and second containers. A controller controls the stage to move the first nonlinear crystal away from the optical path of the laser light and inserts the second nonlinear crystal into the optical path of the laser light.

Method for encoding/decoding a 3d mesh model that comprises one or more components

3D mesh models are represented by three types of data: connectivity data, geometry data and property data. The surface of a 3D object is a triangle mesh. 3D meshes contain huge amounts of data that need to be compressed efficiently. Additionally to the common world coordinate system (WCS) for the complete model and local coordinate system (LCS) for a single triangle, an individual component coordinate system (CCS) for each connected component is used. The component coordinate system (CCS) is used to normalize (53) the orientation of the respective component for quantization and de- quantization. This improves the accuracy of encoded 3D mesh models after quantization/de-quantization, particularly if a 3D mesh model comprises one or more distinct components.

Method for generating drivable 3d character, electronic device and storage medium

A method and apparatus for generating a drivable 3D character, an electronic device and a storage medium are disclosed, which relate to the field of artificial intelligence, such as computer vision, deep learning, or the like, and may be applied to 3D vision and other scenarios. The method may include: acquiring a 3D human body mesh model corresponding to a to-be-processed 2D image; performing a skeleton embedding operation on the 3D human body mesh model; and performing a skin binding operation on the 3D human body mesh model after the skeleton embedding operation to obtain a drivable 3D human body mesh model.

Method and apparatus for encoding video data using skip mode

A common mode in video encoding skips the encoding and transmission of macroblocks that can be fully predicted. It requires however complex calculations to determine such blocks. A fast algorithm is disclosed that speeds up the process of skip mode decision by reducing the computations for transform, thus using a simplified transform (Tsimp), and reducing computations for quantization (Qlow). The disclosed method for detecting Skip mode checks only few low frequency coefficients, without performing a full transform, and offsets for Luma and Chroma part are adaptively chosen to modify quantization parameters in detecting Skip mode, which can achieve a good trade-off in keeping both subjective and objective quality.

Method for lossless compressing prefix-suffix-codes, method for decompressing a bit sequence representing integers or symbols encoded in compressed prefix-suffix-codes and storage medium or signal carrying compressed prefix-suffix-codes

Method for lossless compressing prefix-suffix-codes, method for decompressing a bit sequence representing integers or symbols encoded in compressed prefix-suffix-codes and storage medium or signal carrying compressed prefix-suffix-codes

The invention is related to lossless compression of prefix- suffix-codes wherein a prefix comprises unary code, and to corresponding decompression. The method for lossless compressing prefix-suffix-codes (VLCl, VLC2, VLC3) comprises the steps of forming a first contiguous bit sequence (FBS) from the prefixes (PRFXl, PRFX2, PRFX3), and lossless compressing the first contiguous bit sequence (FBS) by removing redundancy related to the difference between the first value's frequency in the first contiguous bit sequence (FBS) and the second value's frequency in the first contiguous bit sequence (FBS). Bit values are unevenly distributed in the prefixes while distribution of bit values in the suffixes is more even. Therefore, better compression is achievable if the prefixes are compressed separately.

Battery self-heating method, and vehicle

A battery self-heating method includes: obtaining (S 101) a temperature and a state of charge of a battery; determining (S 102) a current amplitude and a frequency during self-heating of the battery according to the temperature and the state of charge; and performing (S103) a closed-loop control on a battery self-heating device according to the current amplitude and the frequency, so as to self-heat the battery.

Image stitching method and apparatus, device, and medium

An image stitching method and apparatus, a device, and a medium is provided. An implementation solution is: obtaining a first image and a second image, where the first image and the second image have an overlapping area; determining a first stitching line segment of the first image and a second stitching line segment of the second image, where the second stitching line segment has a first matching line segment in the first image; determining a first stitching area of the first image based on the first stitching line segment and the first matching line segment; configuring a first target canvas at least based on the first stitching area; determining, for each pixel of a plurality of pixels included in the first stitching area, a corresponding mapping pixel in the first target canvas; and mapping pixel values of the plurality of pixels included in the first stitching area to the corresponding mapping pixels in the first target canvas, respectively, to obtain an image to be stitched of the first image.

Database with in-memory data stores

A database management system maintains a collection of data using a log-based storage structure. In response to a request to store data items (key-value pairs), the database management system stores mapping information to a data item in an in-memory data structure while the data items are stored on the log-based storage structure. The hash of the key includes information to identify an index entry that comprises information that maps to the location of the data item stored on the log-based storage structure.

método para codificar/decodificar um modelo de malha 3d que compreende um ou mais componentes

Method for encoding/decoding a 3d mesh model that comprises one or more components

3D mesh models are represented by three types of data: connectivity data, geometry data and property data. The surface of a 3D object is a triangle mesh. 3D meshes contain huge amounts of data that need to be compressed efficiently. Additionally to the common world coordinate system (WCS) for the complete model and local coordinate system (LCS) for a single triangle, an individual component coordinate system (CCS) for each connected component is used. The component coordinate system (CCS) is used to normalize (53) the orientation of the respective component for quantization and de- quantization. This improves the accuracy of encoded 3D mesh models after quantization/de-quantization, particularly if a 3D mesh model comprises one or more distinct components.

Wdm波分复用反射端贴片夹具

本实用新型公开了WDM波分复用反射端贴片夹具，包括夹具底端滑座，所述夹具底端滑座的一侧固定连接有侧固定块，所述夹具底端滑座的另一侧固定连接有基座，所述夹具底端滑座的顶端滑动连接有夹具滑块，所述夹具滑块的一侧通过滑槽滑动连接有滑动导轨，所述滑动导轨的末端与基座固定连接，所述夹具滑块的一侧通过滑槽滑动连接有中部滑动导轨，所述中部滑动导轨的末端与基座固定连接，所述中部滑动导轨外侧套设有弹簧，所述弹簧的一端与基座固定连接，本实用新型解决了使用WDM反射端贴片夹具时，由于WDM反射端贴片进行实验时难以批量高效固化，也不便于保证实验的一致性，影响了WDM反射端贴片夹具的使用效果的问题。

一种并列式石墨导热泡棉导热结构

本实用新型涉及一种导热结构，具体的说是一种并列式石墨导热泡棉导热结构，属于导热泡棉技术领域。其包括把手层、导热单元和背胶层，多个导热单元呈一直线并排设置，多个导热单元的上端面共同粘结在把手层上，多个导热单元的下端面共同粘结背胶层；所述导热单元包括泡棉层，所述泡棉层上下、左右表面包覆石墨层，石墨层和泡棉层之间通过黏胶层连接，石墨层外表面包覆PET绝缘膜。本实用新型采用多个导热单元并列设置的结构，提高了石墨导热面积，提升了热传导性能；非背胶面增加把手层，便利了客户产品组装应用；填充泡棉采用硅胶泡棉，提升了产品耐高温性能，能够在120℃高温情况下长时间工作，产品压缩性能无影响。

Battery self-heating method, and vehicle

A battery self-heating method includes: obtaining a temperature and a state of charge of a battery; determining a current amplitude and a frequency during self-heating of the battery according to the temperature and the state of charge; and performing a closed-loop control on a battery self-heating device according to the current amplitude and the frequency, so as to self-heat the battery. Determining a current amplitude and a frequency may include obtaining a voltage and a voltage threshold of a bus side of the device when the battery enters a self-heating mode; determining a duty ratio threshold according to the voltage and the voltage threshold; determining a correspondence between the current amplitude and the frequency according to the duty ratio threshold; and determining the current amplitude and the frequency according to the temperature and the state of charge, based on the correspondence between the current amplitude and the frequency.

Inpainting method and apparatus for human image, and electronic device

The disclosure provides an inpainting method for a human image, an inpainting apparatus for a human image and an electronic device. An image to be processed is received (S101). The image to be processed contains a human image to be processed. A three-dimensional human body model corresponding to the human image to be processed, camera parameters, and human body posture information are generated (S102) based on the image to be processed. A segmentation image corresponding to the human image to be processed is generated (S103) based on the image to be processed. A processed human image corresponding to the human image to be processed is generated (S104) based on the three-dimensional human body model, the camera parameters, the human body posture information, and the segmentation image.

Method and device for encoding data for rendering at least one image using computer graphics and corresponding method and device for decoding

Sewing machine

內視鏡鏡頭清潔結構

Methods of encoding and reconstructing image data and devices implementing said methods

The invention relates to a method for coding a block of N image data with N a positive integer comprising the step of : - transforming (S2) the block of N image data into a block of N transformed data; - quantizing (S4) the block of N transformed data into a block of N quantized data; - sampling (S6) the block of N quantized data into M sampled data according to a predefined sampling pattern, with M<N; and - coding (S8) the M sampled data into binary data.

Wavelength conversion apparatus, solid-state laser system, and electronic device manufacturing method

A wavelength conversion apparatus according to an aspect of the present disclosure is a wavelength conversion apparatus that performs wavelength conversion of light through a non-linear crystal and including a first non-linear crystal, a container in which the first non-linear crystal is housed, a crystal holding member provided inside the container for fixing the first non-linear crystal, a first window provided to the container for guiding light to the first non-linear crystal from outside of the container, a second window provided to the container for guiding light output from the first non-linear crystal to outside of the container, a first heater provided inside the container for heating the first non-linear crystal, a battery that supplies electric power to the first heater, and a first controller that controls electric power supply to the first heater.

Methods of encoding and reconstructing image data and devices implementing said methods

The invention relates to a method for coding a block of N image data with N a positive integer comprising the step of: - transforming (S2) the block of N image data into a block of N transformed data; - quantizing (S4) the block of N transformed data into a block of N quantized data; - sampling (S6) the block of N quantized data into q sets of M sampled data according to q predefined non-overlapping sampling patterns with M and q integers and M*q=N; and - coding (S8) each set of M sampled data and, for each set, a data representative of the corresponding predefined sampling pattern into a stream of binary data.

一种橡胶条自动背胶装置

本实用新型涉及一种橡胶条自动背胶装置，属于橡胶条背胶装置技术领域。其包括机架、底剂涂覆组件和背胶组件，机架的进料端一侧设有底剂涂覆组件，机架的出料端一侧设有背胶组件。所述底剂涂覆组件包括进料主动轮组件、进料从动轮组件和底剂盒，底剂盒固接在机架侧面，进料从动轮组件转动连接在机架侧面并且部分浸没在底剂盒的底剂中，进料主动轮组件转动连接在机架侧面并且紧靠进料从动轮组件。本实用新型结构简单、紧凑、合理，工作稳定可靠，能够自动完成橡胶条的背胶，提高产品的良品率，节约人工工时；适用于所有规格的橡胶条的背胶操作，扩大了使用范围。

可收納鼻胃管之領巾

Salience estimation for object-based visual attention model

The present invention provides a salience estimation method for object-based visual attention model. The method comprises steps of segmenting the image into a plurality of objects to be estimated, extracting feature maps for each segmented object, calculating the saliences of each segmented object in a set of circles defined around a centre pixel of the object based on the extracted feature maps, and integrating the saliences of each segmented object in all circles in order to achieve an overall salience estimation for each segmented object. The present invention is much more human vision inosculated and of low computing complexity.

Design method for enhancing the interfacial shear and inter-layer load transfer capacity of double-layer go-csh

The invention discloses a design method for enhancing the interface shear and inter-layer load transfer ability of double-layer GO-CSH, including the following steps: Step 1: Establishing a C-S-H molecular model; Step 2: Establishing a graphene molecular model and obtaining double-layer graphene by Build Layer; Step 3: Establishing a double-layer graphene oxide molecular model; Step 4: Connecting the sp3 inter-layer bond to the upper and lower graphene oxide; Step 5: Forming a double-layer GO/C-S-H molecular model; Step 6: Forming a double-layer GO/C-S-H molecular model with sp3 inter-layer bonds; Step 7: Characterizing the force field parameters of D-GO-CSH molecular model and Lsp3 molecular model by reaction force field molecular dynamics. The invention adopts the above-mentioned design method for enhancing the interface shear and inter-layer load transfer ability of double-layer GO-CSH, the normalized inter-layer stress transfer value, normalized inter-layer pull-out energy and normalized inter-layer shear stress of D-GO-CSH and Lsp3 molecular models are calculated by molecular dynamics theory, and the molecular configuration of D-GO is actively regulated to improve the interfacial shear and inter-layer load transfer ability of D-GO-CSH.

Laser system and electronic device manufacturing method

A laser system includes a first semiconductor laser device configured to output first CW laser light, a first semiconductor optical amplification device configured to amplify the first CW laser light and output second CW laser light, an optical parametric amplification device configured to amplify the second CW laser light and output first pulse laser light, and a wavelength conversion device configured to perform wavelength conversion on the first pulse laser light and output second pulse laser light in a deep ultraviolet wavelength region.