146 results about "Large core" patented technology

The invention relates to a network real-time synchronization communication system, and relates to the technical field of computer network communication. The system comprises four core modules: a hardware optical IO synchronization module which integrates a multi-wavelength optical transceiver array and an anti-jitter circuit and provides a nanosecond global clock signal, and the synchronization precision is less than or equal to 15ns; the time sequence arrangement module is used for dividing a fixed time window and a dynamic buffer window based on a time sensitive network, supporting a priority preemption mechanism of the SRIO bus and realizing deterministic data transmission; the distributed RTDATA nodes replace a traditional single-board computer, a heterogeneous computing unit and an intelligent storage controller are integrated, and protocol stack processing delay is reduced through the zero copy technology; according to the dynamic multicast routing system, a safely isolated multicast tree is constructed as required, and link load distribution is optimized in combination with machine learning. Through collaborative design of hardware optical synchronization and dynamic data arrangement, the problem of real-time performance reduction caused by multi-node communication concurrence is solved.

The invention relates to an anti-ant large-core-number fiber ribbon cable comprising a cable core and an outer sheath. The cable core includes loose tubes; and fiber ribbons are sleeved inside the loose tubes. The outer sheath is an outer nylon sheath; and a non-metallic reinforcement layer is arranged between the outer sheath and the cable core. According to the anti-ant large-core-number fiber ribbon cable provided by the invention, with the outer nylon sheath, ants can not bite the sheath, so that the damages on the optical cable by ant biting in a pipe at an area with a serious anti problem are prevented, the normal state of the cable is ensured, and the application region of the cable is extended. The cable based on a simple and reasonable structure has advantages of small cable diameter, high fiber density, large fiber capacity, and low duty ratio and can be laid in a pipe conveniently; and the bending performance is good. During branched connection, 4 to 24 fibers can be melted once, so that the construction time is saved and the manpower cost is lowered, and the construction efficiency is improved. On the basis of the full drying type dielectric structure, branched connection is realized conveniently and usage becomes convenient.

The utility model discloses a renal artery laser ablation catheter which comprises a catheter structure and an optical fiber bundle. The tube structure has a fiber channel; the optical fiber bundle is contained in the optical fiber channel and comprises a plurality of first optical fibers with the fiber core diameter smaller than 200 micrometers, and the first optical fibers are used for transmitting first laser for irradiating sympathetic nerves and arranged in the extending direction of the optical fiber channel. The diameter of the fiber core of the first optical fiber is set to be smaller than 200 micrometers, so that the first optical fiber has good flexibility, compared with an optical fiber with a large core diameter, the first optical fiber is more suitable for being applied to the renal artery laser ablation catheter, the renal artery laser ablation catheter can freely penetrate through the renal artery, power consumption is small, and light transmission efficiency is high.

The invention relates to the technical field of phase field unwrapping, in particular to a multi-target constrained self-adaptive triangulation network discrete phase unwrapping method and a multi-target constrained self-adaptive triangulation network discrete phase unwrapping system. Comprising the following steps of performing phase quality evaluation on discrete sampling points, calculating a local signal-to-noise ratio, a phase gradient amplitude, a local phase consistency measure and a boundary distance factor of each sampling point so as to comprehensively evaluate the phase quality of each sampling point, and quantifying phase reliability by calculating the local signal-to-noise ratio and a phase gradient amplitude index of the discrete sampling points so as to obtain the phase quality of the discrete sampling points. And as basic input, a quality basis is provided for subsequent network construction. According to the multi-target constraint adaptive triangulation network discrete phase unwrapping method provided by the invention, through organic combination of three core technologies of phase quality guided adaptive triangulation network construction, a multi-target constraint MCF framework and quality guided intelligent path planning, high-precision and high-robustness unwrapping of discrete phase data is realized.

The invention discloses a silica fiber-based light guide material for an automobile atmosphere lamp assembly. The silica fiber-based light guide material comprises a high-purity silicon dioxide base; the thickness of the optical fiber layer ranges from 73 micrometers to 75 micrometers, the optical fiber layer is arranged in the high-purity silicon dioxide base, the optical fiber layer comprises a core layer n1, an outer cladding layer n2 and a high refraction layer n3, the core layer with the large core diameter is adopted, it is guaranteed that light is input as much as possible, the light is totally reflected in the core layer, 360-degree scattering light emitting is conducted through refraction materials, and the atmosphere light emitting effect is achieved; the refractive index is as follows: the high refractive index layer n3 is greater than the core layer n1, and the core layer n1 is greater than the outer cladding layer n2; a scattering body is used as a tiny structure in the optical fiber, and an additional scattering center is introduced; when light is transmitted in the optical fiber, the scatterer enables the light to deviate, so that the scattering probability of the light in the optical fiber is increased; the refractive index of the scatterer is different from the refractive index of the optical fiber matrix; when light encounters the scatterers, due to the sudden change of the refractive index, the light is refracted and scattered, and the propagation direction of the light is changed.

The invention belongs to the technical field of artificial intelligence chip and robot control, and relates to a heterogeneous calculation and control fusion chip control system and method, a robot and a storage medium. A GPU, an NPU, a BPU and an MCU are integrated in a central large core cluster, a communication network subunit and a memory control subunit are matched, and a low-delay data channel is constructed in a chip, so that perception, cognition and control instructions can be directly interacted, the cross-chip communication delay is reduced, and the real-time performance is improved. The three-level cache module is accessed through the memory control subunit, high-bandwidth sharing and centralized scheduling are achieved, data migration is reduced, the bandwidth bottleneck is relieved, and the complex task processing efficiency is improved. A trust root subunit is arranged in each unit, chip-level trusted verification and access isolation are provided, and the reliability under key action control and security sensitive scenes is enhanced.

The invention relates to a hollow-core optical fiber guide type cold atom inertia measurement system and a use method, and belongs to the technical field of cold atom interference measurement inertia. The hollow-core optical fiber guide type cold atom inertia measurement system comprises a vacuum cavity assembly, a laser coupling module I, a laser coupling module II, a cold atom group preparation module and a gravitational acceleration measurement module, according to the invention, a uniform light potential well is constructed by using the hollow-core optical fiber with low loss, high bandwidth and large core diameter, long-distance constraint and guidance are carried out on the cold atom ensemble, and a guide light field applies an optical fiber radial constraint force to the atom ensemble, so that the degree of freedom of motion of the atom ensemble in a non-measurement direction can be inhibited; gravity measurement in a dynamic environment and gravity component measurement in any vector direction are achieved, meanwhile, the size and power consumption of the system are reduced, and integration and engineering of the system are achieved.

The invention relates to the technical field of communication, particularly discloses a phased array transmitting and receiving circuit and a transmitting control method, and brings double advantages of system structure simplification and performance improvement through highly integrated design of three core links of baseband, frequency conversion and beam control. In the aspect of the structure, the physical size of the circuit is obviously reduced, and the hardware complexity and the manufacturing cost are reduced. In addition, in terms of performance, signal loss and delay are effectively suppressed by shortening an internal signal transmission path. Furthermore, the same signal processing unit uniformly outputs the baseband signal and the beam control signal, so that accurate and low-delay synchronization between data processing and beam pointing adjustment is realized, and the inherent time sequence error of a discrete scheme is avoided.

The present application relates to the technical field of power communication of Internet of Things, and discloses a remote software upgrading method and system based on HPLC high-speed power line carrier network; the remote software upgrading method is applied to a software upgrading device and specifically comprises the following steps: S101: obtaining a master node of software to be upgraded; the master node completes an encrypted upgrading instruction package through HPLC network broadcasting; if the master node is in an offline state, a response is triggered through a power line power frequency cycle synchronization wake-up pulse signal to ensure that all network nodes complete instruction synchronization within a preset time. The present application realizes all-around upgrading optimization through three core technologies of dynamic fragmentation transmission, millisecond-level service continuity guarantee and resource limit adaptation; an adaptive fragmentation strategy (128KB-512KB) based on a signal-to-noise ratio compresses a packet loss rate in a high-noise environment to 0.1%; combined with multi-path concurrent transmission and a breakpoint resume protocol, average transmission time is reduced from 30 minutes to 17.4 minutes; and a power frequency synchronization wake-up mechanism is used to realize 300ms network-wide instruction synchronization.

The invention discloses a multi-core optical fiber amplifier with a large core-to-cladding ratio and a gain method. The multi-core optical fiber amplifier is characterized by comprising a multi-core optical fiber formed by a plurality of independent rare earth-doped fiber cores and a cladding structure located on the outer side of the multi-core optical fiber, the cladding structure is internally provided with at least one layer of low-refractive-index isolation region which is used for remarkably compressing the effective cladding area of pumping propagation and improving the capturing efficiency of the whole pumping energy, and the ratio of the total cross sectional area of the multi-core optical fiber to the effective cladding area is not less than 0.1. The low-refractive-index isolating layer is embedded in a conventional cladding structure, so that a pump light propagation area can be effectively compressed on an optical path, the relative proportion of the fiber core in the cross section is increased, the proportion (CCAR is larger than or equal to 0.1) of the total area of the fiber core to the cladding area is remarkably increased, and therefore the pump capture efficiency is improved.

The invention discloses a mid-infrared and far-infrared heterogeneous integrated optical fiber combiner and a preparation method thereof, and belongs to the technical field of mid-infrared optical fiber devices.The combiner comprises six sulfur-based chalcogenide optical fibers with the working wave band being 3-5 microns and four Te-based chalcogenide optical fibers with the working wave band being 7-11 microns, the six sulfur-based chalcogenide optical fibers and the four Te-based chalcogenide optical fibers are mixed in a heterogeneous mode, and ten input optical fibers are closely arranged according to a regular triangle; beam combination transmission is formed by optimizing a low-temperature fused biconical taper process, the optical fiber is precisely welded with an output optical fiber with a slightly large core diameter, and finally the optical fiber is packaged. The beam combiner realizes broadband efficient laser transmission, has the characteristics of excellent beam quality, high synthesis efficiency, large total output power, compact structure and strong stability, and can be widely applied to the fields of optical fiber sensing, laser processing, national defense and the like.

The invention discloses a cache distribution method, system and device and a medium. The method comprises the steps that target acceleration process information is acquired; determining a target acceleration process according to the target acceleration process information; all the small-core CPUs are divided into a first cpush, and all the large-core CPUs are divided into a second cpush; scheduling the target acceleration process to a second cpush; sampling the last level of cache event to determine the cache reference times and the cache miss times of the target acceleration process; calculating a first ratio of the cache reference times to the cache miss times; and distributing LLC of different sizes to the first cpush according to the first ratio, and using the complete LLC by the second cpush. The whole LLC is allocated to the target acceleration process, and the other processes determine the corresponding LLC partitions according to the first ratio, so that the target acceleration process is ensured not to use the LLC by the other processes, the cache miss value and the operation delay of the target acceleration process are reduced, and the method can be widely applied to the technical field of memories.

A ribbon fiber optic cable, comprising a cable core, a water blocking layer (4), a steel tape (5) and an outer jacket (6) which are sequentially arranged from inside to outside. The cable core comprises a flexible foamed subunit (1) and tight-buffered subunits. Each tight-buffered subunit comprises a TPU loose tube (2) and optical fiber ribbons (3). A gap is formed between the water blocking layer (4) and the steel tape (5). By using the TPU loose tubes (2), due to a tight-buffered thin-wall structure, the tight-buffered subunits have a small size, thereby increasing the space utilization of optical fibers in the loose tubes and the fiber packing density of optical fibers in the fiber optic cable, and achieving a large core diameter ratio. The cable core uses the flexible foamed subunit (1), and when the tight-buffered subunits and the flexible foamed subunit (1) are stranded, the flexible foamed subunit (1) made of a soft material provides protection for the tight-buffered subunits when the fiber optic cable is in use, thereby ensuring the transmission performance of the fiber optic cable. A gap is formed between the water blocking layer (4) and the steel tape (5), so that there is certain spacing inside the fiber optic cable, and a loose structure is achieved, reducing the impact of outer jacket shrinkage of the fiber optic cable on the TPU loose tube (2) and the optical fiber ribbons (3), and solving the problem of additional fiber attenuation during loose coiling and thermal cycling of the fiber optic cable.

The invention relates to the technical field of ion beam physical calculation, in particular to an ion beam optical property evaluation method based on a CPU-GPU hybrid parallel stable double-gradient conjugate algorithm. According to the technical scheme, the method comprises the following steps that a CPU-GPU hybrid parallel architecture is initialized, and CPU end and GPU end memory allocation, CUDA related object creation and GPU equipment initialization and parameter setting are completed; constructing a linear equation set, a sparse coefficient matrix A and a right-end vector b, and setting an initial solution vector, convergence precision epsilon and related parameters of the number of iterations; and analyzing the sparseness of the coefficient matrix A. Through combination of three core mechanisms of CPU-GPU cooperative calculation, dynamic load balancing and intelligent preprocessor selection, efficient, stable and universal evaluation of the ion beam optical characteristics is successfully realized, and an excellent solution is provided for solving the solving problem of a large-scale sparse linear equation set in the field of high-performance calculation.

Additive manufacturing method of a component with a thread opening and an insert thread at its radial inner wall, for a wire thread insert to form a standard thread. A 3D component drawing includes the thread opening and the insert thread arranged in there, which is defined byDH⁢C≥DHC⁢min=d+0.7⁢5×Ptan⁡(α2)D1⁢H⁢C≥D1⁢HC⁢min=d+0.1⁢2⁢5×Ptan⁡(α2)D1⁢H⁢C≤D1⁢HC⁢max=d+0.1⁢2⁢5×Ptan⁡(α2)+0.3⁢7⁢3×P-0.1⁢9⁢2×P1.2⁢1PH⁢C=(DHC⁢min-D1⁢HC⁢min)×1.6×tan⁡(α2)withd nominal diameter of the screw threadα flank angle of the screw threadP pitch of the screw threadDHC nominal diameter of the insert threadDHC min smallest nominal diameter of the insert threadD1HC core diameter of the insert threadD1HC min smallest core diameter of the insert threadD1HC max largest core diameter of the insert threadPHC pitch of the insert thread.Dimensions of the insert thread are adapted with correction factors. The drawing is converted with the adapted dimensions into a model for the component manufacturing.

This invention belongs to the field of communication automation technology and discloses a system and method for multi-dimensional collaborative optimization of HBM packaging technology for heterogeneous integration. Addressing the pain points of heterogeneous integrated HBM packaging technology, this invention constructs three core modules: precise adaptation of heterogeneous interconnect interfaces, collaborative control of multi-physics fields within the package, and intelligent molding of heterogeneous integrated microcavities. It employs core technologies such as energy spectrum control and contact adaptation of heterogeneous interconnect interfaces, simulation and control of thermal-mechanical-electrical multi-physics field coupling within the package, and precise molding and sealing of heterogeneous integrated microcavities. This overcomes the technical bottlenecks of traditional HBM packaging technology, including poor adaptability of heterogeneous interconnect interfaces, multi-physics field coupling interference within the package, and low molding accuracy of heterogeneous microcavities. It achieves high adaptability of heterogeneous interconnect interfaces, collaborative and stable control of multi-physics fields within the package, and high-precision leak-free molding of heterogeneous integrated microcavities. This significantly improves the interconnect reliability, structural stability, and heterogeneous integration compatibility of heterogeneous integrated HBM, adapting to the high-bandwidth memory chip packaging requirements of HBM6 and subsequent heterogeneous integration with logic chips and RF chips.

The utility model provides an automatic terminal assembly machine of a ship-shaped overload protection switch, which comprises a bimetallic terminal riveting device and an elastic sheet assembling and bending device, and is characterized in that the bimetallic terminal riveting device is used for riveting and fixing one end of a bimetallic sheet and a first terminal to form a bimetallic terminal assembly and conveying the bimetallic terminal assembly to the elastic sheet assembling and bending device; according to the elastic piece assembling and bending device, the other end of the bimetallic strip is fixedly connected with the elastic piece in an inserted mode, the elastic piece, the bimetallic strip and the first terminal form a first terminal assembly, and after the bimetallic strip is bent by a certain angle, the first terminal assembly and the base are assembled. Two core processes of riveting a bimetallic terminal and assembling and bending an elastic sheet are integrated into one device, so that full-process automatic production from parts to sub-assemblies is realized, the processes of riveting, inserting and bending are adopted, the inserting accuracy of the bimetallic sheet and the elastic sheet and the stability of a bending angle can be effectively ensured, and the production efficiency of the bimetallic sheet and the elastic sheet is improved. Therefore, the consistency of quality and performance of finally assembled products is ensured.

A carrier for a leadless package wherein the carrier comprises: a component mounting structure for mounting an electronic component on the component mounting structure; and a plurality of leads disposed around at least a portion of the component mounting structure, where a corner lead of the leads is closer to at least one corner of the component mounting structure than an intermediate lead of the leads, the intermediate lead is farther from the at least one corner than the corner lead, where the intermediate lead is located between the at least one corner and the corner lead. The corner leads have a greater width along respective edges of the component mounting structure than the smaller width of the intermediate lead, and wherein at least the corner leads include a lead end inspection feature.

The invention is suitable for the field of medical apparatus and instruments, and provides an optical fiber beam combining and coupling ultraviolet laser ablation device and ablation system. The optical fiber beam combining and coupling ultraviolet laser ablation device comprises an optical fiber beam combining assembly, the optical fiber beam combining assembly comprises a first optical fiber and a plurality of second optical fibers, the optical fiber beam combining assembly is used for transmitting laser energy in the single first optical fiber to the plurality of second optical fibers, and the core diameter of the first optical fiber is larger than that of the second optical fibers. According to the optical fiber beam combining and coupling ultraviolet laser ablation device and ablation system, the optical fiber beam combining assembly can serve as a final conductor, the first optical fiber with the large core diameter is arranged at the front end, laser energy can be better conducted to the second optical fiber with the small core diameter, the end face of the incident end of the second optical fiber is prevented from being directly damaged by the laser energy, and the ablation efficiency is improved. The second optical fiber adopts a small-core-diameter optical fiber as an ablation optical fiber, is soft and easy to bend, has a smaller bending radius, and is small in limitation, more flexible to operate and good in application effect when being applied to laser ablation treatment in a blood vessel.

The utility model discloses a 384 core layer stranded OPGW optical cable, which comprises a central aluminum-clad steel wire, a plurality of outer layer aluminum-clad steel wires, a plurality of optical units and a plurality of aluminum alloy wires, the plurality of outer layer aluminum-clad steel wires and the plurality of optical units are stranded on the outer side of the central aluminum-clad steel wire to form a middle layer, and the plurality of aluminum alloy wires are stranded on the outer side of the middle layer. The optical unit comprises a plurality of optical fiber bundles and a stainless steel tube, the optical fiber bundles are arranged on the inner side of the stainless steel tube, and the outer side of each optical fiber bundle in the stainless steel tube is wrapped with yarn of different colors. According to the utility model, a marking scheme of color wire yarn binding is adopted to solve the optical fiber distinguishing problem of a large-core-number OPGW optical cable, the yarn binding process and the colored optical fiber can be synchronously performed to form a tube, the optical fiber looping manufacturing process is reduced, the risk of attenuation abnormity caused by over-dense color rings is reduced, the OPGW structure is optimized, the small-diameter optical fiber is designed, and the production efficiency is improved. The outer diameter of the optical cable is kept unchanged under the condition that the number of optical fiber cores is increased.

The utility model relates to the field of optical fiber interference sensors, and discloses an M-Z interference sensor with a small excitation group velocity dispersion difference mode structure. Comprising a light injection single-mode optical fiber, a small-core-diameter step multimode optical fiber, a wide annular core optical fiber, an annular core optical fiber, a gradient refractive index multimode optical fiber, a large-core-diameter step multimode optical fiber and a light receiving single-mode optical fiber which are connected in sequence. The wide annular core optical fiber comprises a third quartz cladding and a third quartz fiber core, and the third quartz fiber core annularly wraps a third quartz layer; the annular core optical fiber comprises a fourth quartz inner wrapping layer, a fourth quartz fiber core and a fourth quartz outer wrapping layer, the fourth quartz inner wrapping layer is annularly wrapped by the fourth quartz fiber core, the fourth quartz fiber core is annularly wrapped by the fourth quartz outer wrapping layer, and the optical fiber radial refractive index distribution index of the gradient refractive index multimode optical fiber is 1.95-2. According to the scheme, the annular core optical fiber is used for injecting light to the gradient refractive index multimode optical fiber, two modes with smaller group velocity dispersion difference can be excited to interfere, and the sensitivity of the sensor is improved.

The invention belongs to the field of integrated circuit design, particularly relates to a fractional frequency divider circuit based on a digital time converter, and aims to solve the performance bottleneck caused by quantization errors in a fractional frequency division phase-locked loop. The circuit comprises three core modules, namely a differential integral modulator, a pulse swallowing multi-modulus frequency divider and a constant-slope digital time converter, wherein the differential integral modulator generates a multi-modulus frequency divider control word and a digital time converter control word according to integer and fractional frequency control words; the pulse swallowing multimode frequency divider receives an output signal of the voltage-controlled oscillator, and outputs a signal D1 and a time sequence control signal after frequency division processing; the constant slope digital-to-time converter time-converts D1 based on a control word and a timing signal, and outputs a delayed clock signal to counteract a quantization error. The femtosecond-level time delay circuit adopts an optimized circuit architecture design, has the characteristics of simple structure and low power consumption, realizes femtosecond-level time delay precision and high linearity, effectively inhibits phase noise and stray, is adaptive to various analog fractional frequency division phase-locked loop structures, remarkably improves the frequency spectrum purity and the system suitability of a clock generator, and has a wide application prospect. And the application requirements of the high-performance fractional frequency division phase-locked loop in the fields of wireless communication, radar and the like are met.

This invention discloses an integrated adaptive cutting and stripping processing device for multi-specification cables, comprising a base, with support seats evenly mounted on the top of the base, and a circular ring plate connected to the top of the support seats. This invention utilizes a spring-moving rod-ball bearing adaptive structure in the cable clamping mechanism to adapt to cables of different diameters without replacing the clamping components. Combined with the precise adjustment function of the adjusting rod in the stripping mechanism, it can adapt to cables with different insulation thicknesses, significantly improving the device's versatility and adaptability. Simultaneously, it integrates the three core functions of clamping, stripping, and cutting onto the same base, with the stripping and cutting components centrally arranged on the central circular ring plate. Combined with the precise transport of the movable transport seat, it achieves continuous automated operation of "transportation-clamping-stripping-cutting," completely changing the traditional multi-device, step-by-step operation mode, significantly shortening the processing flow and improving processing efficiency.

The application discloses an ultra-precision air static pressure rotary table, which comprises a radial brass bearing sleeve, a table top, a base, a feedback grating system, an axial thrust, a gas distribution block and an air bearing core. The application has the advantages that: for the 300mm nominal disc diameter specification, the four core performance requirements of focusing low speed / low-medium speed operation, large load bearing, ultra-high structural rigidity and nanometer level rotation accuracy can be met, and the application can be widely applied to 300mm semiconductor wafer detection and calibration platforms, optical element ultra-precision grinding / polishing machine tools, diamond tool ultra-precision cutting rotary tables, large-size part high-precision measurement detection instruments, micro-nano manufacturing system rotary tables, aerospace precision component processing equipment and other national strategic high-end manufacturing equipment. The application is a core basic component for supporting modern ultra-precision machining, semiconductor detection, optical manufacturing and precision measurement industry to realize low-speed stable operation, heavy load support, high rigidity precision protection and nanometer level positioning.

The utility model provides an integral forming inductance of impact resistance and heat resistance, include: split type magnetic core structure, sectional type winding subassembly, composite insulating layer, elastic buffer layer, metal alloy shell, heat conducting medium filling layer, positioning clamping groove, reinforcing flange, high temperature resistance pin, sealing colloid, stress dispersion groove, temperature response coating, split type magnetic core structure is by upper magnetic core body a, lower magnetic core body b and magnetic gap adjusting component c is composed, the upper magnetic core body a and lower magnetic core body b are engaged through mortise and tenon structure, magnetic gap adjusting component c is detachable ceramic sheet, elastic buffer layer is by silicon base elastomer and carbon fibre braided layer alternative superposition constitutes. The utility model discloses three big core technologies of split type magnetic core dynamic regulation, three -level buffer energy absorption, gradient heat conduction insulation, solves the pain point such as temperature rise runaway, mechanical failure, parameter solidification of traditional inductance under extreme environment, especially applicable to the field of harsh reliability requirement such as aerospace power supply, high orbit satellite load, new energy automobile electric drive system.

The invention discloses a sample preparation device for fiber material microstructure high-throughput characterization, the sample preparation device comprises a fixer and a sample table, the fixer is a hexagonal hole and is used for placing the sample table, and the fixer comprises a round hole; triangular grooves are formed in the surface of the sample table, the triangular grooves are opposite to and connected with the round holes of the fixers, and the two fixers are arranged at the two ends of the sample table respectively in a sleeving mode. According to the sample preparation device and method for high-throughput characterization of the microstructure of the fiber material, three core elements of no damage, mass production and rapidness are considered, it is ensured that the surface structure of the fiber material is not damaged, meanwhile, efficient preparation of a large number of samples is achieved, and suitable characterization equipment is a laser confocal microscope and a scanning electron microscope.

The invention discloses an indirect cooling type thin film capacitor shell design optimization evaluation system and method. Comprising an inversion brick shell and internal architecture design module, an inversion brick shell topological optimization and thermal simulation verification module, an inversion brick shell fine design and conjugate heat transfer simulation verification module and an inversion brick shell scheme optimization and optimal design shaping module. The method comprises the following steps: carrying out main body design on an inversion brick shell, establishing a topological optimization model of the inversion brick shell, designing an actual structure of the inversion brick shell, carrying out fine design, generating a plurality of groups of differentiated inversion brick shell design schemes, carrying out scheme comparison and screening by balancing three core indexes of thermal performance, weight and cost, and determining an optimal design scheme.

The invention provides a data interaction method, device and equipment for a multi-core heterogeneous chip and a medium, and the method comprises the steps: transmitting a control command to a small core through a large core, so as to enable the small core to carry out initialization configuration; peripheral data and / or inter-core data are / is obtained through the initialized small core; and processing the peripheral data and / or the inter-core data through the small core to obtain target data, and transmitting the target data to the large core or the small core. Peripheral data and / or inter-core data are / is obtained through a small core, so that the multi-core heterogeneous chip can adapt to different application scenes, and the universality is good; data are processed in a serial or parallel manner through a plurality of small cores, data interaction among the cores is diversified, various scenes of data interaction are compatible, the flexibility is high, the expansibility is good, data interaction is directly carried out between a large core and the small cores, and the communication efficiency is high.

The invention provides an intelligent automatic assembling and tightening method for a large core and a shell. The problems that in traditional assembling, efficiency is low, precision is unstable, and potential safety hazards are prominent are solved. According to the method, a control unit is in linkage with a core processing mechanism, a shell processing mechanism, a tightening operation mechanism and other assemblies, and full-process automatic operation from part box discharging, overturning, initial assembling, precise butt joint, automatic tightening to finished product box feeding is achieved. The core body processing mechanism completes core body feeding, overturning and centering. Core body hoisting and screw preassembling are achieved through the tightening operation mechanism, and the core body and the shell are driven to be in precise butt joint and automatically tightened; and finally, finished product box returning is completed without manual intervention. According to the method, through real-time feedback adjustment of the high-precision detection part, stable assembly precision is ensured, meanwhile, through multi-mechanism cooperative linkage, the assembly efficiency is greatly improved, potential safety hazards are eliminated, and the method is suitable for automatic assembly of large precision parts.

The invention discloses a wearable device control method and device, a wearable device and a storage medium, and relates to the technical field of wearable devices. The wearable device comprises a large-core processor and a small-core processor, the power consumption of the large-core processor is larger than that of the small-core processor, the large-core processor is used for operating a large-core system, and the small-core processor is used for operating a small-core system. After the screen of the wearable device is in the screen-off state, if the number of user operations in the first time period meets a first condition, the wearable device enters a state that the large core system and the small core system work cooperatively, and the first condition is the condition that the number of user operations in the first time period is larger than 0. In the method, the power consumption of the large-core processor is greater than that of the small-core processor, so that the wearable equipment enters a cooperative working state, and the power consumption of the wearable equipment can be reduced compared with the mode that the wearable equipment is always in a large-core system working state.