68results about How to "Efficient compression" patented technology

This invention discloses an automatic welding machine, comprising a first welding station, a second welding station, and a transfer mechanism. The first welding station includes a first support and positioning component and a resistance welding machine. The first support and positioning component is provided with a first electrode, and the first electrode is provided with a movable connection structure for movably connecting a pre-welding mounting plate. The resistance welding machine includes a second electrode, which cooperates with the first electrode to weld the mounting plate to the inner wall of the first end of the side plate. The second welding station includes a second support and positioning component and a laser welding machine, used to weld the top end of the second outward flange to the first end of the first outward flange. This automatic welding machine can realize the automatic welding of beam frames, which is beneficial to improving welding quality and welding efficiency, and reducing labor intensity.

The utility model relates to the technical field of foam tape processing, and particularly discloses a foam tape transverse cutting device which comprises a conveying belt, a supporting block, a transverse cutting support and a sliding seat, the supporting block is arranged on the conveying belt, and the upper surface of the supporting block is flush with the upper surface of the conveying belt; the transverse cutting support is arranged on the supporting block, the sliding base is slidably connected to the transverse cutting support above the supporting block in the width direction of the conveying belt, and a driving mechanism used for driving the sliding base to move is arranged on the transverse cutting support. The bottom of the sliding base is rotationally connected with a rotary cutter, and a rotating mechanism used for driving the rotary cutter to rotate is arranged on the sliding base. A pressing frame is slidably connected to the transverse cutting support in the vertical direction, and a lifting mechanism used for driving the pressing frame to move is arranged on the transverse cutting support. The device has the effects that the problems that in the downward pressing and cutting process of the cutting knife body, materials on the periphery of a material transverse cutting part are prone to being pulled, deformed and even damaged, the knife edge is prone to being pressed and curled after the cutting knife body is used for a long time, and the transverse cutting efficiency and effect are affected are solved.

This application provides a method and related equipment for preprocessing game trajectory data. The method includes: converting game trajectory data into a first grid sequence; merging high-frequency adjacent grids in the first grid sequence to calculate a second grid sequence; extracting embedding vectors from the second grid sequence to calculate an embedding vector sequence; and using the embedding vector sequence as a training set input to a deep learning model. This application's embodiment, by converting game trajectory data into a first grid sequence, merging high-frequency adjacent grids in the first grid sequence, and then extracting embedding vectors from the second grid sequence, can capture the prior influence of environmental factors on trajectory distribution and the potential contextual semantic information in the trajectory, achieving effective compression of long trajectory data.

The invention provides a data compression method and device, electronic equipment and a chip system, and the method comprises the steps: carrying out the diagonalization matrix transformation of original conjugate symmetric positive definite matrix data, and determining the transformed target matrix data; the diagonal element data in the target matrix data are stored by adopting a first bit width, the non-diagonal element data in the target matrix data are stored by adopting a second bit width, and the first bit width is larger than the second bit width. According to the method, most information in matrix data is concentrated on diagonal elements through low-complexity matrix transformation, and secondary information is reserved on non-diagonal elements. And in combination with differential bit width quantization storage, diagonal elements in the target matrix data are subjected to high bit width quantization storage, and non-diagonal elements in the target matrix data are subjected to low bit width quantization storage. Therefore, on the premise of ensuring low precision loss and low complexity, the conjugate symmetric positive definite matrix data can be effectively compressed, so that the hardware storage overhead is reduced.

The application provides a lightweight variable bit rate multi-view image compression method and system, and relates to the technical field of image compression. The method comprises: downsampling, feature extraction and feature scaling of a single-view image to obtain a latent representation corresponding to a target bit rate; quantization and lossless entropy coding of the latent representation to obtain a final compressed bit stream; subsequent lossless entropy decoding and inverse scaling to restore the latent representation; feature fusion and upsampling of the restored latent representations of different views to generate a reconstructed compressed image. The model comprises a main encoder, a feature scaling module, a quantization module, an autoregressive entropy model, an arithmetic encoder, an arithmetic decoder, a feature inverse scaling module and a decoder. The application can efficiently compress image data, reduce computational complexity and storage space occupation while preserving image details and quality, thereby providing faster speed and lower bandwidth requirement for image transmission and storage.

The utility model discloses an efficient and energy-saving screw rod structure of a PP plastic bottle extruder, and relates to the technical field of PP plastic bottle extruders. Comprising a main body disc, a plurality of extrusion rods are arranged at the left end of the main body disc, threaded grooves are formed in the surfaces of the extrusion rods, and the main body disc, the extrusion rods, the threaded grooves, tooth grooves, a spur gear, a rotating column and a motor are used in cooperation, so that the output end of the motor rotates to drive the rotating column and the spur gear to rotate; firstly, a spur gear rotates to drive a plurality of extrusion rods to synchronously rotate, threads and threads of a plurality of threaded grooves are matched with one another, so that the extrusion rods synchronously rotate to shear plastic raw materials through the threaded grooves, the shearing efficiency is improved, and the overall energy consumption is reduced; therefore, materials can be conveniently and rapidly conveyed in the feeding section, material accumulation is reduced, the screw pitches are gradually reduced in the compression section and the metering section, and therefore multiple materials can be effectively compressed and homogenized.

The utility model provides a turning chipping collecting device which comprises a main machine, a material receiving groove is formed in one side of the main machine, an extrusion pipe is fixedly connected to the inner side of the main machine, the extrusion pipe and one end of a discharging through hole are formed in the main machine, an extrusion assembly is slidably connected into the extrusion pipe, and one end of the extrusion pipe is fixedly connected with a filtering assembly. The filter assembly comprises a drainage groove, a filter cartridge and an adjusting gear ring, the drainage groove is formed in the lower side of one end of the extrusion pipe, one end of the filter cartridge is rotationally connected to the outer side of the extrusion pipe, and the inner side of the adjusting gear ring is fixedly connected to one end of the filter cartridge; one end of the adjusting gear is meshed with the adjusting gear ring; turning chippings are compressed through the extrusion assembly, meanwhile, cooling liquid flows out through the drainage groove, the chippings are filtered in the extrusion pipe through the filter cylinder, efficient separation and compression of the chippings and the cooling liquid are achieved, and the treatment efficiency is improved.

The invention relates to the technical field of video processing, can be applied to service system platforms of medical health, financial science and technology and the like, and discloses a key frame extraction method based on low-rank multi-modality, which comprises the following steps: constructing an original feature matrix according to acquired multi-modality data; performing decomposition processing on the original feature matrixes to generate low-rank embedding representations, and performing vector splicing on the low-rank embedding representations to obtain a compression state; constructing a low-rank Q network according to the compression state, and constructing a reinforcement learning agent by the low-rank Q network and a strategy network; inputting the compression state into a reinforcement learning agent, and outputting an initial key frame decision; calculating a modal confidence weighted item and a distribution consistency item according to the modal confidence of the multi-modal data, and calculating a confidence perception reward through the modal confidence weighted item and the distribution consistency item; and performing fine tuning on the reinforcement learning agent through the confidence perception reward, correcting the initial key frame decision according to the fine-tuned reinforcement learning agent, and outputting a key frame sequence.

The embodiment of the invention provides a multi-stage oil-free linear valved compressor which comprises a compressor device, and the compressor device comprises a driving assembly and a stepped compression mechanism. The stepped compression mechanism comprises a compression piston and a cylinder body, the compression piston is provided with protrusions in the first direction to form a stepped shape, and multiple sections of air cylinders which are different in radius and communicate with one another are arranged in the cylinder body in the first direction to form multiple sections of unequal-diameter air cylinder bodies. The compression piston is in clearance fit with the multiple sections of cylinder bodies with different diameters to form at least two compression cavities with different radiuses; and the driving assembly is used for driving the compression piston to do reciprocating motion in the compression cavity in the first direction to achieve multi-stage gas compression. Multi-stage gas compression is achieved through the stepped compression mechanism, the problems of pollution, vibration and low efficiency of a traditional compressor in an oil-free environment are solved, and the oil-free compressor has the advantages of oil-free operation, efficient compression, low vibration and high reliability.

This invention belongs to the technical field of aircraft manufacturing engineering and intelligent scheduling optimization. It discloses an aircraft final assembly scheduling method and equipment based on an improved genetic algorithm. The steps are as follows: (1) Construct a scheduling model based on process and worker data with the optimization objectives of minimizing the final assembly completion time and minimizing the number of workers involved; (2) Encode the process priority and worker skill slots obtained from the scheduling model using an improved genetic algorithm in the encoding stage, and use the encoding as chromosomes to form an initial population; (3) Perform event-driven decoding on the individuals in the initial population to obtain an initial scheduling scheme; (4) Calculate the fitness value of each chromosome according to the total completion time and the number of workers involved corresponding to the initial scheduling scheme, and screen all chromosomes according to the fitness value to obtain a new population, and then finally obtain the aircraft final assembly scheduling scheme. This invention realizes the collaborative optimization of completion time and the number of workers involved.

The invention discloses a high-dimensional sparse text-oriented classification method, system and device and a storage medium, and belongs to the technical field of natural language processing. The method comprises the steps of obtaining to-be-classified text data; based on the to-be-classified text data, constructing a candidate redundant feature set by calculating semantic similarity; joint mutual information of candidate redundant features in the candidate redundant feature set is calculated, and key features are obtained through screening according to the joint mutual information; inputting the key features into a pre-constructed text classification model to obtain a classification prediction result; wherein the text classification model comprises a dual-channel gating module, an attention module and a prediction module; the two-channel gating module extracts context features in the key features; the attention module weights the context features to obtain weighted features; and the prediction module obtains a classification prediction result according to the weighted features. According to the method, effective compression of feature dimensions and precise modeling of context semantics are realized.

This utility model relates to the technical field of ceramic trimming machines, and discloses a ceramic trimming machine, including a fixed base plate, a rotating shaft rotatably connected to the fixed base plate, a supporting base plate installed at the top of the rotating shaft, a fixed frame installed on the top outer wall of the fixed base plate, an electric push rod installed on the top outer wall of the fixed frame, a lifting plate connected to the output end of the electric push rod, and a supporting shaft rotatably connected to the lifting plate. By placing the ceramic blank on the top of the supporting base plate, and then driving the lifting plate to descend by the electric push rod, four pressing plates can simultaneously press against the upper surface of the ceramic blank. By loosening the adjusting nut, the locking block no longer presses against the side wall of the movable rod, allowing the movable rod to slide inside the guide sleeve, thereby adjusting the position of the pressing plates. By adjusting the position of the pressing plates in sequence, the pressing plates can effectively press ceramic blanks with different opening sizes, thereby improving the ease of use of the device.

The invention belongs to the technical field of vegetable quality detection, and particularly relates to an establishment method and a detection method of a tomato fructose content prediction model. The method comprises the following steps: firstly, collecting near infrared spectrums of tomato samples, dividing the tomato samples into a calibration set and a verification set, and removing abnormal values; secondly, comparing and screening the near infrared spectrums by using different pretreatment methods; carrying out dimension reduction treatment on the spectrum by adopting biPLS-CARS, and extracting a near infrared spectrum characteristic wavelength of the fructose content index; and finally, establishing a tomato fructose content prediction model by utilizing the selected characteristic wavelength through a partial least square method and combining with the absolute content of fructose. The established model can accurately predict the fructose content in the tomato, the operation process is simple, rapid and environment-friendly, and a new technical means is provided for detection of the fructose content in the tomato.

The application provides a data processing method of a row-column mixed storage database and related products. The data processing method comprises the following steps: obtaining an instruction for performing storage mode conversion on an initial partition, wherein the initial partition adopts a row storage mode; constructing a target partition, wherein the target partition adopts a column storage mode; performing columnar reorganization on data of the initial partition and migrating the data to the target partition, wherein the columnar reorganization is used for converting data based on the row storage mode into data based on the column storage mode; and atomically updating a metadata pointer of the initial partition to direct a corresponding query operation to the target partition. The data processing method overall realizes effective compression of storage space, acceleration of analysis query, and comprehensive optimization of system resource utilization, and is particularly suitable for mixed transaction and analysis processing scenarios.

The utility model relates to the technical field of compressors, in particular to a gas compressor rotor seat easy to disassemble, assemble and maintain, which comprises a rotor seat main body, a shell arranged at the top of the rotor seat main body, a plurality of fixing components arranged between the rotor seat main body and the shell, and a buffer component arranged in the rotor seat main body. And a pair of self-lubricating assemblies are symmetrically arranged in the rotor seat main body. According to the utility model, through the arrangement of the fixing assembly, the stable and convenient installation between the rotor seat main body and the housing is realized, and through the cooperation of the limiting block and the limiting groove, the knob can be firmly clamped in the limiting groove after being rotated by 90 degrees, so that the stable fixing effect is realized, and the installation and disassembly processes become simple and rapid; vibration generated by the cam shaft rotor disc is effectively buffered through combined use of the buffering assembly, the first spring, the piston rod, the first piston and the oil storage barrel, the stability of the gas compressor is improved, and the service life of the gas compressor is prolonged.

The application discloses a front-end data compression method, device, equipment, medium and product. The method comprises the following steps: a main thread receives service data, and when a preset compression triggering condition is met, the main thread dynamically converts a pre-embedded script code string into an executable sub-thread, and the script code string comprises compression logic of a lightweight compression engine; the main thread encodes the service data and stores the service data in a binary buffer, and transfers the memory ownership of the binary buffer to the sub-thread through a message communication interface; the sub-thread creates a typed array view based on the binary buffer, calls the lightweight compression engine to compress the typed array view, generates a compression result, and transfers the memory ownership of the compression result to the main thread; and the main thread reports the compression result or locally stores the compression result. The method can realize efficient data compression in the front end, ensure smooth running of a front-end page, and reduce memory occupation and transmission delay.

The utility model relates to the technical field of engines, and discloses a flywheel housing capable of reducing oil leakage defect, which comprises a flywheel housing body and a protective cover, the top of the flywheel housing body is fixedly connected with a connecting block, the middle of the connecting block is provided with a screw hole, the top of the flywheel housing body is provided with a sealing assembly, and the sealing assembly is provided with a screw hole. A ventilation assembly is installed on the outer side of the flywheel shell body. The sealing assembly comprises a second sealing ring, the second sealing ring is fixedly connected to the top of the flywheel shell body, a first sealing ring is fixedly connected to the outer portion of the second sealing ring, and two hoops are arranged on the outer portion of the first sealing ring. According to the flywheel shell, the sealing assembly composed of the first sealing ring, the second sealing ring, the hoops and the like is arranged at the top of the flywheel shell body, the two hoops are connected through the hinge and fastened through the threaded rod, the sealing rings can be effectively fixed and pressed, and therefore the sealing performance of the top of the flywheel shell is enhanced, and the oil leakage risk is reduced.

The application discloses a mineral identification analysis method and system based on calculation of a polarized light field reconstruction, belongs to the technical field of geological mineral analysis and microscopic imaging, and solves the triple bottleneck problem of physical contradiction-algorithm fragmentation-experience dependence in the prior art. At least one group of original light field image sequences of a sample to be measured in multiple visual angles and multiple polarization states are acquired; registration processing is performed on the original light field sequence images, so that the images under all visual angles correspond in spatial positions, and registration data are obtained; a degradation relation model for describing the original light field image sequence and a target light field image is established; based on the degradation relation model and the registration data, a polarization synthesis image is generated through reverse solving; morphological texture features and optical physical features are extracted from the polarization synthesis image, and mineral types and distribution information are determined. The application realizes automation, quantification and intellectualization of mineral identification, and improves the accuracy and efficiency of analysis.

The application discloses a kind of depth-intensity joint optimization light weight SPAD neural network reconstruction methods, belong to single-photon imaging and depth learning technical field, including: based on wavelet transform to the original histogram data of SPAD array is carried out multistage wavelet decomposition, obtain compressed time-frequency domain data;Utilize multiscale superpixel to carry out non-maximum suppression, and obtain estimated depth map by voting mechanism;Local histogram is extracted from compressed time-frequency domain data, and sum along time dimension obtains intensity map;The estimated depth map is expanded, and expanded depth map is obtained;The double-branch complementary depth reconstruction network including depth branch, edge branch and perception interaction module is constructed;Real depth map and real edge gradient map are used to guide network, and training is carried out using joint loss function, to realize light weight SPAD neural network reconstruction.The method significantly improves the depth reconstruction accuracy under low illumination while greatly reducing the amount of calculation.

The application discloses a video processing method and device and related equipment, and belongs to the field of image processing. The method comprises the following steps: encoding a target video to obtain target encoding data; determining left-eye encoding data and right-eye encoding data of the target video according to the target encoding data; and respectively decoding the left-eye encoding data and the right-eye encoding data to obtain a left-eye video and a right-eye video of the target video.

The utility model relates to the technical field of fiber processing, and discloses extrusion equipment for processing high-performance fiber products, which comprises a screw extruder, the screw extruder is provided with a feed port and a discharge port, a screw which is coaxially arranged in a centering manner and is driven by a motor is mounted in the screw extruder, and a spiral auger is mounted on the screw; the spiral auger comprises a feeding section close to the feeding port and a staggered-tooth shearing section close to the discharging port, the feeding section and the staggered-tooth shearing section are connected with each other, and the screw pitch of the feeding section is larger than that of the staggered-tooth shearing section. The screw pitch of the feeding section of the spiral auger is large, fiber materials can be rapidly conveyed, feeding smoothness is guaranteed, the screw pitch of the staggered tooth shearing section is small, and therefore melt pressure is balanced, pressure fluctuation is reduced, fiber melt extrusion is more stable, fibers are more evenly distributed in the melt, the mixing effect of the fibers is effectively improved, and the mixing efficiency of the fibers is improved. And the quality stability of the product is improved.

The present application belongs to the technical field of knowledge compilation and network reliability analysis, and particularly relates to a network reliability intelligent computing method and system for a logical decision graph, comprising: modeling a network system as a triple data structure composed of a network topology graph, a terminal node set and an edge availability probability set; determining a topology order of network nodes and network edges based on the triple data structure; constructing a full binary tree vtree with leaf nodes corresponding to network edges one by one according to the topology order; and compiling the network topology graph into a zero-suppression statement logical decision graph using the vtree, wherein the zero-suppression statement logical decision graph is used to represent a set of valid subgraphs that satisfy terminal node connectivity; and recursively calculating a reliability value of the network system based on the zero-suppression statement logical decision graph.

The utility model discloses a hand riveter head with a pressing function. The hand riveter head comprises a riveter head body, a pressing head and a spring. The gun head is sleeved with the pressing head in a sliding mode. And one end of the spring is connected with the pressing head, and the other end of the spring is connected with the gun head. According to the utility model, the gun head structure is improved, so that the problem that the nut rotates along with the rivet pulling head in the rivet pulling process due to the fact that the gun head of the existing rivet pulling gun cannot press the nut is solved, and the rivet pulling precision, efficiency and quality are improved.

The application discloses a winding device for transformer coil, relates to the technical field of transformer coil winding, and comprises a winding machine, a winding frame for winding copper wire to make a transformer coil is fixedly connected to an output shaft of the winding machine, the winding machine is fixedly connected with fixing frames which are symmetrically distributed along the winding machine, sliding blocks are slidably connected to the middle of the fixing frames, elastic telescopic blocking frames which are symmetrically distributed along the sliding blocks are fixedly connected to the sliding blocks, and the elastic telescopic blocking frames are used for compressing the copper wire in real time during winding of the transformer coil. The winding machine drives the winding frame to rotate, and the wire arranging assembly is used for arranging the wire, so that winding of the coil can be realized, the elastic telescopic blocking frames can be automatically compressed in real time, the coil can be effectively compressed without space limitation when winding to the two ends of the coil, and the compactness of the whole region of the coil is ensured.

This utility model relates to the field of mobile phone case processing technology, and in particular to a fixture for processing mobile phone mid-frames, comprising: a placement component for fixing the product, the placement component being provided with an air connector for external connection, and the placement component being fixed to the placement component by vacuum suction; a clamping component for fixing the product on the placement component, the clamping component having an elastic element on the side near the product to prevent damage to the product, and two clamping components for fixing the clamping component, the two clamping components being symmetrical to each other, the two clamping components clamping the two sides of the clamping component respectively. This utility model allows for processing from multiple sides, thus reducing positioning errors caused by jig changes. The two symmetrical clamping components can better fix the cover plate, and the two-component design can effectively save jigs while providing a more stable fixation.

The invention relates to the technical field of vehicle-mounted waste plastic recycling, and discloses a vehicle-mounted waste plastic recycling device which comprises a vehicle-mounted container, a color sorter is arranged in the vehicle-mounted container, a sorting temporary storage box is arranged on the rear portion of the color sorter, and a PET material discharging port and other material discharging ports are formed in the temporary storage box. The two discharging ports are in butt joint with the corresponding shredding assemblies respectively, the bottoms of the shredding assemblies are in butt joint with the spiral conveyors, the tail ends of the spiral conveyors are in butt joint with the stock bins, the stock bins comprise the PET stock bin and the other stock bin which are arranged side by side, and the stock bins form a slope face from an inlet to the rear wall. According to the invention, through advanced visual identification and automation technologies, efficient integrated processing of recovery, classification, crushing, compression and settlement is realized.

The invention relates to the technical field of big data analysis, in particular to a space-time big data acquisition and analysis system and method based on the Internet of Things, and the method comprises the following steps: inserting a drift compensation tag at the tail part of each time grid block, and outputting the time grid block with the drift compensation tag; combining the associated data items into a logic data unit; performing semantic isomorphic compression on the logic data unit and the data items with the same spatial hash codes at an edge node to generate a compression block with a spatial-temporal index; and the cloud server receives the compressed block, performs time conflict disambiguation and event-level causal reasoning on the spatio-temporal index by using a causal chain engine, and directly outputs drifting-free and redundancy-free spatio-temporal knowledge which is used for driving high-order application. According to the method, cross-space causal path matching and standard time sequence verification of the uploaded data are realized, and a plurality of actually occurring event-level causal chains can be automatically identified.

This invention discloses a high-efficiency video analysis method based on cloud-edge collaboration and adaptive MoE. The method includes: when an edge device performs a video analysis task, it first constructs a meta-request containing current task data and device resource constraints, and sends it to the cloud; the cloud uses a pre-trained basic model to extract features from the video data and clusters the data based on the feature space, dividing complex video scenes into multiple semantic subdomains; a lightweight expert model is trained in the cloud for each semantic subdomain; a routing decision model is further trained in the cloud; after deploying an expert model pool and routers on the edge device, for input data, the router first calculates the matching degree of each expert model and performs a comprehensive evaluation based on its computational cost. Through knowledge distillation, the large-scale basic model is decomposed into lightweight expert models, achieving a significant compression of the model size, enabling efficient deployment on resource-constrained edge devices.

The novel multifunctional air compressor comprises a motor shell, a piston driving mechanism shell and an air cavity supporting shell which are fixedly connected, an air cavity shell and an air cavity bottom plate are arranged above the air cavity supporting shell, a cylinder body is vertically installed, and a piston plate is arranged in the cylinder body. A motor output shaft in the motor shell extends into the piston driving mechanism shell and is in linkage with the piston plate through the piston driving mechanism. The air cavity bottom plate is provided with a one-way valve clack on the upper side of the air inlet to prevent air in the air cavity from flowing back; a vent hole and a one-way valve device are arranged on the piston plate in a penetrating mode, and one-way flow of air on the upper side and the lower side of the piston plate is achieved. By arranging a dual one-way airflow control structure, compressed air is effectively prevented from flowing back, the compression efficiency and the airtight reliability are improved, meanwhile, the heat dissipation performance and the intelligent control function are good, the structure is compact, and operation is stable.

The invention relates to the technical field of trajectory prediction and planning, in particular to a parallel iterative joint prediction planning method considering bidirectional interaction characteristics, and the method comprises the steps: constructing a bidirectional interaction modeling mechanism considering future trajectory interaction; iteratively executing interactive trajectory prediction and interactive trajectory planning based on a bidirectional interactive modeling mechanism in parallel until a preset condition is met, so as to respectively obtain a final planning code and a final prediction code; and decoding the final planning code and the final prediction code to obtain a multi-modal prediction trajectory and a planning trajectory of a planning time domain, and obtaining a final prediction trajectory and a planning trajectory according to the confidence coefficient. Therefore, the problems that the coupling relation between prediction and planning is difficult to fully reflect and the vehicle track cannot be timely adjusted according to the traffic environment change due to the fact that only the one-way influence of prediction on planning is established in the related technology are solved; therefore, the problems of conservative planning, influence on road traffic efficiency, even traffic accidents and the like easily occur in a complex dynamic scene.