40 results about "Dual layer" patented technology

The invention discloses a video abstract generation method based on double-layer routing sparse attention and space pixel recalibration, and belongs to the field of computer vision. The method comprises the following steps: reading an input video and extracting a frame-level feature vector; constructing a video abstract generation model, and performing channel enhancement on the frame-level feature vector to obtain enhanced features; performing double-layer routing sparse attention and space pixel re-calibration on the enhanced features, and performing fusion to obtain fusion features; and inputting the fusion features into an importance score regression network, outputting frame importance scores, and selecting frames to generate a video abstract. According to the method, double-layer routing sparse attention and space pixel re-calibration are combined, the global dependency relationship and local detail information are effectively fused, and the key segments in the video can be accurately identified while the calculation complexity is reduced. Experimental results based on a SumMe and TVSum reference data set show that the method disclosed by the invention shows a good effect in a video abstract generation task.

The invention discloses a centralized storage and unified management method, system, equipment and medium for a remote video monitoring system of a power generation enterprise, and belongs to the technical field of video monitoring. Identifying a monitoring blind area; replacing equipment according to an evaluation and classification result, and adding a high-definition network camera in a monitoring blind area; constructing a three-layer network architecture comprising an access layer, a convergence layer and a core layer, wherein the core layer adopts redundant connection; optimizing a hard disk video recorder deployment scheme based on the network topological relation; establishing a double-layer storage architecture, and adjusting a data uploading strategy according to a network state and a video recording type; unified access of devices of different manufacturers is realized through protocol conversion; and generating a monitoring interface according to the user role. Scientific classified updating of equipment is realized through a multi-dimensional equipment evaluation model, a transmission path is shortened through network hop count minimization and optimization deployment, bandwidth peak shifting utilization is realized through double-layer storage and intelligent scheduling, and unified and efficient management is realized.

The utility model relates to the technical field of workbenches, in particular to an auxiliary assembling structure for a double-layer workbench, which comprises a workbench, the auxiliary assembling structure for the double-layer workbench comprises a connecting rod and an inserting plate, the inserting plate is connected with a clamping block through an inserting block, the connecting rod is connected with a disc, the disc is connected with a sliding block through a transmission rod, and the sliding block is connected with a sliding block. The sliding block is connected with a clamping block through a rotating plate, and the clamping block is connected with an inserting block through a spring. The workbench has the advantages that the two workbenches are spliced by inserting the inserting plates into the inserting grooves, the clamping blocks can fix the spliced workbenches by buckling the clamping blocks into the clamping grooves, and when the connecting rod is rotated, the disc drives the sliding blocks to slide, so that the springs are compressed, the clamping blocks are separated from the clamping grooves, and separation is completed. The whole device can be quickly spliced and separated, and the connection is tight.

The utility model relates to the technical field of SMT (Surface Mount Technology) processing, and provides a trolley compatible with trays with various sizes, which comprises a supporting assembly, at least one group of single-layer material box assembly and / or at least one group of double-layer material box assembly, the supporting assembly comprises a supporting seat and a plurality of groups of positioning and locking mechanisms arranged on the supporting seat; the supporting base is detachably connected with the single-layer material box assembly or the double-layer material box assembly through any set of positioning and locking mechanism. The single-layer material box assembly comprises a first material disc support. The double-layer material box assembly comprises a second material disc support and a third material disc support, and the second material disc support and the third material disc support are distributed in an up-down staggered mode. Free combination of different material frame assemblies is facilitated, material trays of various sizes can be stored in a compatible mode, material taking convenience is improved, material taking operation of different feeders is facilitated, the overall structure is simple, the manufacturing cost is low, the application range is expanded, and therefore the production and machining technology and the production efficiency are effectively improved.

This invention discloses a long-distance dual-axis self-synchronizing double-layer vibrating tension screen, comprising an excitation device, an upper coarse-pore screen, a fixed screen frame, a floating screen frame, and a lower fine-pore flexible screen. The excitation device includes a rear excitation device mounted on a side plate corresponding to the feed inlet and a front excitation device mounted on the side plate corresponding to the fine slag outlet. The line connecting the central axis of the drive shaft of the front excitation device and the central axis of the drive shaft of the rear excitation device forms a spatial inclined plane, and the angle between the spatial inclined plane and the upper coarse-pore screen ranges from 20° to 45°. The center of mass of the entire screen body is located within the spatial inclined plane, and the distance between the central axis of the drive shaft of the front excitation device and the center of mass of the entire screen body is the same as the distance between the central axis of the drive shaft of the rear excitation device and the center of mass of the entire screen body. This invention can achieve dry screening of moist fine-grained materials with complex particle size distribution, and is particularly suitable for raw coal grading and screening in coal preparation processes.

This invention discloses a multi-layer composite sound-absorbing device. The double-layer micro-perforated plate of this invention includes an upper micro-perforated plate and a lower micro-perforated plate, which are connected by a disc spring device. The upper and lower micro-perforated plates are connected around their perimeter by a frame, ensuring the disc spring device between them is compressed. The density gradient porous sound-absorbing material layer is composed of at least two layers of sound-absorbing material with different densities stacked together. This multi-layer composite sound-absorbing device is composed of resonant and resistive sound-absorbing materials, achieving excellent low-frequency broadband sound absorption, effectively solving low-frequency noise pollution problems in substations, converter stations, and other fields. By adjusting the plate spacing to change the compression state of the disc springs, different stiffness characteristics are obtained, thereby enhancing the resonant sound absorption effect for specific frequency bands of noise and specifically improving the sound absorption coefficient of the device for specific frequency bands of noise.

The utility model discloses a greenhouse big -arch shelter with double -layer heat preservation film structure, including ground beam, the ground beam's top one side installs the support side plate, the top of ground beam and the one side outer wall of support side plate install between first installation framework and second installation framework, the top of first installation framework is paved with first heat preservation film, the top of second installation framework is provided with the heat preservation film take -up assembly for the take -up of second heat preservation film, heat preservation film take -up assembly sets up on the arc pneumatic slide platform for moving in a certain direction for driving heat preservation film take -up assembly. The utility model can according to actual demand and weather change, the covering state of second heat preservation film is flexibly controlled, when needing to enhance the heat preservation effect, can quickly lay second heat preservation film on the top of second installation framework, when weather is getting warmer or carries out the inside operation of big -arch shelter, can also conveniently wind it, and simple and efficient operation saves manpower and time cost.

The utility model relates to periscopic four-station AA equipment. The periscopic four-station AA equipment comprises a base; the four AA modules arranged in parallel have AA stations, so that the PCB and the lens perform AA operation; the first feeding and discharging module used for feeding PCBs is provided with a stripping module used for tearing films of the PCBs. The double-layer assembly line module is used for transferring the film-torn PCBs or AA finished products of the first feeding and discharging module; the first transfer module is used for transferring the PCB with the film torn from the double-layer assembly line module to an AA station and transferring the finished product with AA completed to the double-layer assembly line module; the second loading and unloading module is used for loading the lens; the second transfer module is used for transferring the lens of the second loading and unloading module to an AA station; and the material taking module is used for transferring the finished products AA by the double-layer assembly line module. Stripping and film tearing of the PCB are achieved through the stripping module, a stripping machine does not need to be additionally arranged, full-automatic feeding and discharging are achieved through the arrangement of the double-layer assembly line module and the combination of the four AA modules arranged side by side, internal carrier plate backflow is uninterrupted feeding, and the production efficiency is improved.

This invention belongs to the field of integral bladed disk size detection technology, and provides a three-coordinate measuring machine (TCM) method for detecting the dimensions of a double-layer integral bladed disk. The method includes the following steps: Step 1, designing the TCM probe structure based on the disk structure; Step 2, configuring the calibration ball orientation for the probe structure; Step 3, calibrating all probes and placing them in the probe replacement rack; Step 4, establishing the disk coordinate system; Step 5, automatically running the program and calling the corresponding probes to scan the disk profile; Step 6, using the scanned data for dimensional evaluation. This invention efficiently completes the detection of the double-layer integral bladed disk profile, avoids missing disk dimensions, achieves quality control, improves measurement efficiency and accuracy, and increases detection efficiency by 50%.

The invention discloses an automatic pushing device and method for a heat-shrinkable sleeve of an optical fiber fusion splicer, and belongs to the technical field of optical fiber fusion splicers. The device comprises an optical fiber fusion splicer, a double-layer disc inner disc and a double-layer disc outer disc, and the double-layer disc inner disc and the double-layer disc outer disc are arranged at the two ends of the optical fiber fusion splicer; the sliding device and the heating furnace are arranged at the top of the optical fiber fusion splicer; and the rotating inner shaft is arranged in the centers of the double-layer disc inner disc and the double-layer disc outer disc. The method comprises the step that the double-layer disc inner disc, the double-layer disc outer disc and the sliding device are used for pushing the heat-shrinkable sleeve to the heating furnace to complete hot joining. The method for automatically pushing the heat-shrinkable sleeve can overcome the defects that an existing heat-shrinkable sleeve pushing device is insufficient in manual pushing and positioning precision, and a fusion point of an optical fiber is prone to deviating from the center of the heat-shrinkable sleeve.

The utility model relates to a film supporting mechanism of a full-automatic bagging machine, the film supporting mechanism comprises a film supporting frame and a film supporting assembly, the film supporting assembly comprises two film supporting blocks, the two film supporting blocks are arranged on the two opposite sides of the film supporting frame respectively, and when the film supporting mechanism supports a double-layer coating film, the two film supporting blocks are both arranged in the double-layer coating film in a penetrating mode; and then the two film supporting blocks abut against the two sides of the interior of the double-layer wrapping film correspondingly, so that the two sides of the interior of the double-layer wrapping film are supported, a gap of the double-layer wrapping film is opened, and cards, sheet-shaped products, book-shaped products or box-shaped products are more easily pushed to the position between the double-layer wrapping film. The double-layer packaging film has the effect that cards, sheet-shaped products, book-shaped products or box-shaped products can be more easily pushed between the double layers of packaging films.

The utility model relates to feed production technical field, concretely is a double -deck quality assurance device, including the shaking mechanism includes arc filter screen, and arc filter screen inner arc surface opposite two arc edges all fixed sleeve joint has round plate. In the utility model, through utilizing two quality assurance device bodies to the material ripening improves ripening time, when the material passes through the connecting cylinder, the material is accumulated on the hollow cylinder and fills the recess, starts the stepping motor and drives the hollow cylinder to rotate and pours the material in the recess, makes the material be held by the arc filter screen, starts the servo motor and drives the rotating plate to pass the sliding block and drives the slide rail, rack along the card rail reciprocating moves to make the rack pass the gear and drive the arc filter screen reciprocating rotation produces the shake to make the material in the arc filter screen collide each other and collide with the collision roller and disperse, and the dispersed material can fall from the mesh, thereby dispersing the material, improving the fluidity of the material, and making the material redistribute, reducing the local overheating condition of the material.

The invention relates to a heating tape which comprises a heating tape body and a heating assembly, the heating tape body comprises a single-layer section and a double-layer section which are connected, and the double-layer section is provided with an interlayer; the heating assembly comprises a heating wire and a power source, the power source is located at one end, away from the double-layer section, of the single-layer section, the heating wire is embedded into the single-layer section, one end of the heating wire is connected with the power source, and the other end is connected in the interlayer to form a closed loop. According to the heating tape, the heating wires are convenient to connect and operate, and the connecting points are high in hiding performance.

The utility model relates to the technical field of compressors, in particular to a double-layer noise reduction cover for a compressor and the compressor, the double-layer noise reduction cover for the compressor comprises a single-layer noise reduction cover, the single-layer noise reduction cover is installed on the top of a fixed disc of the compressor, and the single-layer noise reduction cover is arranged above an exhaust port of the compressor in a covering mode. A first exhaust hole is formed in the top of the single-layer silencing cover, and a plurality of silencing cavities are formed in the periphery of the single-layer silencing cover; and the composite noise reduction cover is installed on the top of a fixed disc of the compressor, the composite noise reduction cover covers the top of the single-layer noise reduction cover, and second exhaust holes are formed in the periphery of the composite noise reduction cover. According to the double-layer noise reduction cover for the compressor and the compressor, the problem that an existing single-layer noise reduction cover structure is difficult to meet the noise reduction requirement can be solved.

The application belongs to the technical field of intelligent sensing detection and parameter identification, and particularly relates to a pulley type rope state integrated dynamic measurement device and method. The pulley type rope state integrated dynamic measurement device comprises a support, a central shaft fixedly installed on the support, two double-layer end covers installed on the central shaft, the double-layer end covers being composed of large discs and small discs integrally arranged on the inner side of the large discs, two sliding sleeves meshing with each other arranged between the two large discs, an internal gear installed on the inner circumferential surface of one of the sliding sleeves, the internal gear being meshingly connected with a pinion, the pinion being fixedly installed on the shaft of a measurement encoder, a single-chip microcomputer installed on the inner side of one of the double-layer end covers, and the single-chip microcomputer being electrically connected with a clamping electric cylinder, the measurement encoder, a signal transceiving module and a strain gauge set. The strain gauge set and the measurement encoder are used to cooperatively collect dynamic parameters of the rope, so that the problem that the traditional fixed pulley cannot master the dynamic parameters of the rope in real time is solved.

1. The name of the design product: double-layered preservative film cutting box (9688). 2. The use of the design product: used as a preservative film cutting box. 3. The design points of the design product: the combination of shape and pattern. 4. The picture or photo that best indicates the design points: perspective view.

The invention provides a double-layer co-extrusion type extrusion device for cable processing, and relates to the technical field of cable processing. The extrusion component comprises an extrusion assembly, a co-extrusion assembly, a sealing assembly and an exhaust assembly; the extrusion assembly is connected with the co-extrusion assembly, the co-extrusion assembly is connected with the sealing assembly, and the co-extrusion assembly is connected with the exhaust assembly; the extrusion assembly comprises a support, a control panel, a protective sleeve, a conveying cylinder, a heating ring, a material box, an extrusion head and a mounting frame. The rear end of a cable conductor can be prevented from trailing, and adhesion and fusion of an insulating material when a subsequent new cable conductor is inserted into a conductor channel are avoided, so that the effects of simplifying operation steps required by processing and improving the processing efficiency are achieved; the quality of an insulation sleeve wrapping a cable conductor is improved, and the insulation sleeve is prevented from forming a cavity.

The utility model discloses a packaging container with a double-layer film, which belongs to the technical field of packaging containers, and has the technical key points that the packaging container comprises a container body, solid components and liquid components of medicines or foods can be effectively separated and stored through the container body, and the situations of deterioration, reaction and the like caused by mutual contact of the solid components and the liquid components in the storage and transportation processes are avoided; and meanwhile, a user can selectively tear the second layer of sealing film or the first layer of sealing film according to own requirements, so that the solid medicine or food can be conveniently taken out, or the liquid medicine or food can be conveniently poured out, or the solid medicine or food and the liquid medicine or food can be conveniently mixed for use, and the selective use mode is convenient to use. Compared with a plurality of traditional independent packages, the multifunctional packaging box has the advantages that the use of packaging materials is reduced, the packaging cost is reduced, the generation of packaging wastes is reduced, the environment-friendly requirement is met, and the multifunctional packaging box is of a double-layer structure and has solid-liquid separation and multiple functions.

The application discloses a double-layer sealed portable replacement type full-liquid floating disc, and relates to the technical field of inner floating disc for storage tanks. The double-layer sealed portable replacement type full-liquid floating disc comprises an upper floating unit, a lower floating unit, a floating unit connecting stand, a connecting sleeve and a sealing rubber ring. The height of the lower floating unit is about 40% of the total height. An oil sealing rubber ring is arranged on the upper cover plate of the lower floating unit and is adhered to the cover plate through a composite material. The upper and lower floating units are sealed at the connecting position of the two tanks through a groove and the sealing rubber ring, and the connecting column welded to the lower floating unit is inserted into the sleeve of the upper floating unit and is screwed into a nut to apply force so as to achieve a better sealing effect. The application divides the traditional floating box unit body into two parts according to the actual oil immersion depth, seals the two parts separately, and connects the two parts together through a special connecting mechanism, so that when the oil immersion part is damaged and oil is poured, the upper part of the floating box is not affected, the floating box can be quickly disassembled, and the maintenance cost is greatly reduced.

The application belongs to the technical field of network communication, and particularly relates to a high-definition low-latency audio and video long-distance transmission device. The high-definition low-latency audio and video long-distance transmission device comprises a high-definition audio and video interface box and a high-definition audio and video adapter which are used in cooperation, wherein the high-definition audio and video interface box and the high-definition audio and video adapter each comprise a cover plate assembly, a casing assembly and an internal module; the cover plate assembly is connected with the casing assembly through a connecting piece and forms a sealed cavity; and the internal module is placed in the sealed cavity and is overlapped with the casing assembly. The device adopts a whole machine sealing mode, the cover plate adopts a double-layer sealing design, and the jack assembly adopts an integrated processing forming mode, so that a complete sealed shielding chamber is formed in the device. The internal module is located in the casing assembly and is physically isolated from the external environment. Meanwhile, the internal module is subjected to a reinforcing design, so that the device can be normally used in a vibration environment such as a vehicle-mounted environment or a ship-mounted environment.

The present application relates to the technical field of pipetting workstations, and more particularly to a double-deck rotary disc type pipetting workstation and a method for using the same. The double-deck rotary disc type pipetting workstation comprises an upper disc, a lower disc, a driving mechanism and a pipetting module. The upper disc is arranged above the lower disc. The driving mechanism is in power connection with the upper disc and the lower disc, and can drive the upper disc and the lower disc to rotate. The upper disc is provided with a plurality of consumable boxes for loading pipette tips. The lower disc is provided with a plurality of constant temperature modules, a plurality of magnetic modules for adsorbing magnetic beads, a plurality of mixed well plates and a plurality of liquid storage well plates. The constant temperature modules are provided with constant temperature well plates, and the magnetic modules are provided with magnetic well plates. The pipetting module can move between the upper disc and the lower disc. The pipetting module only moves in the Z-axis direction, and has a lower control difficulty and a lower required control precision, so that the fault tolerance is higher, the reliability is higher, and the pipette tips will not be missed or dropped due to the deviation in the control movement.