207results about How to "Quick fit" patented technology

The invention discloses an aeroacoustic wind tunnel corner noise elimination flow deflector, a flow deflector group and a design method, and belongs to the technical field of aeroacoustic wind tunnel test equipment. The corner flow deflector aims at solving the technical problems that an existing corner flow deflector cannot give consideration to aerodynamic performance and noise elimination performance, and a special shape design method and a combination application scheme are lacked. The noise elimination flow deflector is of an integrated structure formed by sequentially connecting a semi-oval front edge, a front straight section, an arc section, a rear straight section and a wedge-shaped tail edge, and key parameters of the upper profile and the lower profile are designed in an associated mode. The flow deflector set is formed by combining and installing at least two noise elimination flow deflectors according to a specific rule, and a uniform-section airflow channel is formed. According to the design method, coupling optimization of the noise elimination amount and the aerodynamic performance is achieved through a parameterized design process in combination with the Picrov formula, and the design method has the advantages of being high in noise elimination efficiency, small in aerodynamic loss and good in airflow uniformity, is suitable for a symmetric corner aerodynamic acoustic wind tunnel and can be widely applied to aerodynamic noise tests in the fields of aviation, automobiles and the like.

The utility model discloses an integrated glue solidification detection structure's angle grinder, including setting's machine base, install drive seat on the machine base, drive seat is symmetrically arranged, be connected with the angle seat through the movement structure on drive seat, the angle seat is distributed on the machine base upper end four corners, the clamping groove for placing photovoltaic board is seted up on the angle seat, the clamping groove is opposite to set up, install drive motor under drive seat, drive motor output end is connected with the rotating shaft, the rotating shaft is connected in the clamping groove inside through -penetrating, the rotating shaft outside is provided with the carousel. This integrated glue solidification detection structure's angle grinder, the angle seat is convenient for four corner positions of photovoltaic board to carry out positioning and polishing simultaneously, avoids the deviation or inclination of photovoltaic board in the processing, and the polishing of photovoltaic board corner is carried out through the rotary motion of carousel, and the whole structure is simple, reduces the problem that the maintenance cost increases due to the setting complex structure.

This invention discloses a silicone oil thrust frame, relating to the field of medical device technology. It includes a syringe holder, an adapter holder, and an adapter. A syringe is quickly connected to the syringe holder. The syringe holder is connected to the adapter holder via a long connecting tube. A pagoda connector is quickly connected to the adapter holder. The pagoda connector is connected to the adapter via a short connecting tube. Both the syringe holder and the adapter holder have identical quick-release structures. This invention allows for rapid assembly and replacement of the syringe and adapter, is less prone to damage and detachment, and can quickly adapt to different devices in case of emergencies during surgery, avoiding waste of consumables, prolonged operation time, and reducing procurement costs.

The invention discloses a high-concurrency trusted computing remote certification method and system based on equipment type adaptation, and relates to the technical scheme that the method comprises the following steps: receiving a registration request which is sent by a client and contains an equipment type identifier; creating a thread pool, packaging the received registration request into a registration processing task, scheduling the registration processing task, analyzing an equipment type field in the registration request, and storing a mapping relationship between a client identifier and an equipment type to a local configuration file; in the challenge certification stage, querying the equipment type of the client from the local configuration file, and selecting an adaptive remote certification protocol according to a preset mapping rule; and packaging response verification operation of the server to the client into a proof processing task, and submitting the proof processing task to a thread pool for high-concurrency scheduling. The method can adapt to multi-form client requests, and can efficiently process large-scale concurrent remote attestation requests at the same time.

This invention relates to the field of glass production testing technology, specifically disclosing a glass cold bending ultimate failure test device and method. The device includes a worktable and four identical cold bending loading units. Each unit integrates a planar displacement structure with horizontal displacement capability, a liftable and directional adjustable support structure, and a pressure head connected by a ball joint. During testing, the planar displacement structure of each unit is first adjusted to accommodate glass specimens of different sizes. Then, the support structures of three units form an L-shaped support surface, and their pressure heads press against corresponding corner points on the upper part of the specimen to establish stable constraints. Finally, the pressure head of the fourth unit applies a concentrated load to the unconstrained corner points, while automatically monitoring the load and displacement until the specimen fails. This invention, through modular and automated design, achieves high versatility of the device, high testing accuracy, and high operational safety, effectively improving testing efficiency and data reliability.

This invention provides a device for cleaning and removing burrs from the surface of co-extruded sheets, belonging to the field of sheet metal cleaning technology. It includes a heating shell, which heats and shrinks burrs on the sheet metal surface into granules for easier subsequent burr removal; a conveying assembly, which transports the sheet metal into the heating shell for processing and outputs the processed sheet metal; two conveying assemblies are provided on both sides of the heating shell; and a polishing assembly, which polishes the granules on the surface of the sheet metal after heating, located on the left side of the heating shell and to the right of the left conveying assembly. This invention solves the problem of burrs remaining on the surface of co-extruded sheets during processing, which results in substandard sheet quality and potential harm to workers, necessitating the removal of these burrs during processing.

This invention relates to the field of power management technology, and particularly to an intelligent integrated power system and control method based on multi-source collaboration, including a main power module, a backup power cluster, an energy management unit, a voltage adaptation module, a status monitoring unit, a communication module, and a load interface. Compared to existing technologies that typically use a single type of battery pack as a backup power source, which suffers from slow response speed and difficulty in withstanding instantaneous high-power surges, this invention employs a heterogeneous energy storage system composed of parallel lithium battery packs and supercapacitor modules as the backup power cluster, and uses a bidirectional DC / DC converter for intelligent control. This solution fully leverages the different advantages of lithium batteries (high energy density) and supercapacitors (high power density and rapid response), enabling the system to provide both long-term backup power support and instantaneous high-power discharge, thereby significantly improving the dynamic response capability, power support reliability, and overall service life of the backup power source.

The utility model belongs to the technical field of helmet, especially relates to a helmet, including helmet main part, the rotatory setting of face mirror has on helmet main part, face mirror can rotate to the front side of helmet main part and make face mirror be in the use state, face mirror also can rotate to the upper portion of helmet main part and make face mirror be in the storage state, the rotatory setting of helmet main part still has the jaw guard, the jaw guard is eccentric with face mirror Setting, the jaw guard can cross face mirror and overturn to the back side of helmet main part, thereby make helmet can be used as half helmet, the jaw guard also can cross face mirror and overturn to the front side lower portion of helmet main part, thereby make helmet can be used as full helmet, the driving part for driving face mirror movement is set up on the jaw guard, when face mirror is in the use state, the driving part can drive face mirror to rotate to the storage state, the utility model's purpose lies in providing a kind of helmet that the user uses conveniently.

This utility model discloses a workstation docking device for a tea packaging production line, specifically relating to the technical field of tea packaging production equipment. It includes a docking transition plate, on the side of which a tea production line device is mounted. A slider is fixedly connected to the tea production line device. A groove is formed on the docking transition plate, and the slider is slidably connected to the groove. An auxiliary rod is fixedly connected to the surface of the docking transition plate, and a rotating shaft is slidably connected to the auxiliary rod. A limit block is rotatably connected to the inner wall of the rotating shaft, and an insertion block is fixedly connected to one end of the limit block. A first slot is formed on the outer surface of the tea production line device, and the insertion block is inserted into the first slot. This workstation docking device for a tea packaging production line achieves rapid assembly of the docking transition plate and the tea production line device through the sliding connection of the groove and the slider, reducing installation and debugging time.

The utility model discloses an anti-loosening and anti-falling plugboard, which is characterized in that a plugboard cavity is formed by a main shell and a face shell, the face shell is provided with an adaptive groove, a jack and a tongue hole, and the plugboard cavity is provided with a clamping tongue linked with a power supply push switch. When the button of the power supply push switch is pressed down, the conductive chuck is powered on and the clamping tongue extends out to lock the plug, and when the button rebounds, power is cut off and the clamping tongue retracts. According to the utility model, anti-drop locking and power supply control are integrated into single button operation, so that the design is simplified, and misoperation can be effectively avoided; and low plugging force and high connection reliability are both considered, the problems that a traditional structure is complex in operation and easy to loosen are effectively solved, and the connector is suitable for high-vibration scenes such as electric automobiles.

The utility model discloses a quick installation bearing assembly structure, which comprises an installation seat, a fixed table and a lifting mechanism arranged on the fixed table, the output end of the lifting mechanism is connected with a sliding cylinder, the lower end of the sliding cylinder is connected with a heating plate, the bottom of the heating plate is connected with a heat conduction pressing plate, and the outer side wall of the heat conduction pressing plate is connected with an electric heating ring. The heating ring is used for heating the heating plate; the electric heating ring, the heat conduction pressing plate and the heating plate are matched, the bearing and the shaft body are assembled according to the thermal expansion and cold contraction principle, compared with a traditional pressurization method, the problem that an inner ring of the bearing and a retainer are damaged or dislocated due to excessive pressure is solved, the heating temperature is accurately controlled through the temperature sensor, and the service life of the bearing is prolonged. And the risk that the local performance of the bearing is changed is reduced, the assembly precision and reliability can be improved, the service life of equipment is effectively prolonged, and particularly, higher applicability and stability are embodied in a complex scene in which a plurality of parts need to be assembled at the same time.

The invention provides a large language model text traceability method based on virtual cue word embedding, and belongs to the technical field of artificial intelligence natural language processing and the technical field of digital content security, the method comprises the following steps: (1) constructing a chat input instruction text with a role format; (2) obtaining embedded vector input; (3) obtaining system cue word embedding representation; (4) obtaining a generated text with a user identity information watermark; and (5) recovering user identity information to realize traceability of the generated text. According to the method, on the premise that main body parameters of the large language model are not modified and model text generation quality and response efficiency are not affected, instant embedding of traceable identity information in the large language model generation process is achieved, meanwhile, robustness of embedded watermark information in a text transformation scene is guaranteed, and the method is suitable for large language model generation. Verifiable and reproducible identity identification information can be stably extracted from the generated text, and reliable technical support is provided for source tracing of the generated text.

The invention discloses an image tag identification model deployment method and device, equipment and a medium. The method comprises the following steps: crawling a plurality of initial images corresponding to business scene demand information according to a first image quantity; calling a pre-training multi-modal large model to carry out label endowing on each initial image according to the business scene demand information, and constructing a label image set; performing fine adjustment on the multi-modal basic model by adopting a label image set and a service rule corresponding to the service scene demand information, calling the multi-modal target model to perform batch reasoning on each non-label service scene image, and generating a plurality of pieces of pseudo-label data with the same number as the second images; selecting a to-be-trained model corresponding to the business scene demand information; and training the to-be-trained model by adopting the pseudo tag data, generating the target image tag identification model, and deploying the target image tag identification model to the corresponding service scene, so that the image tag identification model can be quickly and flexibly deployed in a resource-limited scene for use.

This utility model discloses an eco-board based on single mortise and tenon joint. The eco-board includes sub-wood strips and mother-wood strips, and the transverse direction of the eco-board is spliced ​​using mortise and tenon joints, while the longitudinal direction is spliced ​​using toothed joints. Its advantages are as follows: Compared with double mortise and tenon joints, the eco-board of this utility model, using a single mortise and tenon joint, has higher process efficiency and better economy. The processing time for single mortise and tenon joints can be reduced by 30%-50%, making it particularly suitable for mass production and requiring lower equipment precision. Secondly, it reduces the grooving process, lowering labor and tooling costs. Furthermore, the single mortise and tenon joint reduces material removal, making it suitable for scenarios requiring weight reduction (such as hanging cabinets and movable furniture). Moreover, the single mortise and tenon joint is particularly suitable for thin boards, requiring no larger board thickness for support, and can be used stably in eco-boards with a thickness of less than 18mm, thus broadening its application range.

The invention belongs to the technical field of groundwater reserve prediction, and particularly relates to a physical logic driven groundwater reserve intelligent prediction method and system. Comprising the following steps: performing complementation and physical verification on multi-source heterogeneous observation data related to groundwater reserves in a target area to obtain a physical verification complete data set conforming to physical logic; performing space-time decoupling causal contribution analysis on the physical verification complete data set to generate a causal contribution matrix; according to the causal contribution matrix, constructing and training a physical constraint emergence type space-time prediction model; applying a physical anchoring adversarial migration strategy to adapt the trained emergence type prediction model to the target new region to obtain a region adaptive prediction model; and inputting the future scene conditions into the regional adaptation prediction model for simulation, and generating a groundwater reserve prediction result. According to the method, intelligent prediction with high precision, high robustness and physical interpretability on groundwater reserves can be realized, and scientific decision support is provided for water resource management.

The invention discloses a channel time-frequency joint extrapolation method based on a multi-layer perceptron hybrid architecture. Aiming at the problems of high acquisition cost of actual communication scene channel data, high time consumption of model online training and difficulty in covering the actual communication scene by simulation data, the method comprises the following steps of: making a pre-training model by using a large-scale simulation channel data set to extract channel change characteristics; and carrying out online rapid adaptation according to the trace data of the actual measurement scene. Aiming at the characteristics that the time delay spread of an indoor wireless channel is relatively small and the number of antennas is relatively small, a multi-layer perceptron hybrid architecture is applied to the time-frequency domain extrapolation of a single-carrier broadband channel. The model can quickly adapt to an actual communication scene through fine tuning of a small amount of data. The method has the advantages of being high in adaptation speed, small in data dependence, high in scene migration capacity, high in calculation parallelism degree and the like, and is suitable for edge deployment and rapid adaptation to actual scenes.

An efficient boiler steam exhaust silencer reliable in structure and durable comprises a silencer body, a supporting plate and a base used for achieving the overall supporting effect, the supporting plate is transversely installed on the base through a plurality of shock absorbers, and the silencer body is transversely and fixedly installed on the top of the supporting plate; the supporting plate comprises a steam inlet cylinder, a silencing cylinder and a steam outlet cylinder which are fixedly communicated in sequence, a steam inlet of the steam inlet cylinder is connected with a steam inlet flange through a steam inlet hose, a steam outlet of the steam outlet cylinder is connected with a steam outlet flange through a steam outlet hose, and the outer side of the silencing cylinder is sleeved with a heat exchange jacket used for cooling steam in the silencing cylinder. A cooling water inlet and outlet pipeline is fixedly connected to the heat exchange jacket, and a plurality of silencing plates are sequentially arranged in the steam outlet cylinder from one side of the silencing cylinder to one side of the steam outlet. By integrating the high-strength structural design and the multi-stage composite silencing technology, the efficient attenuation and low-resistance steam exhaust of steam exhaust noise are realized while long-term stable operation and durability are ensured.

The utility model discloses a PCBA (Printed Circuit Board Assembly) test fixture in the technical field of PCBA test, and aims to solve the problems of insufficient positioning accuracy, poor adaptability, insufficient clamping stability, damage to the surface of a PCB (Printed Circuit Board) and the like in the prior art. The jig comprises a jig body, a pressing and fixing mechanism and a clamping and fixing mechanism. The top side of the tool body is provided with a test groove used for placing a PCBA. The hold-down fixing mechanism effectively absorbs vibration and impact through the combined design of an electric push rod and a hold-down air cushion in combination with a spring and a shock absorber, and it is ensured that the PCBA is kept stable in the testing process; according to the clamping and fixing mechanism, a bidirectional threaded rod is matched with a servo motor, accurate movement of a clamping rod is achieved, PCBs of different sizes and shapes are rapidly adapted, and the positioning accuracy and adaptability are improved. By optimizing the clamping and positioning structure and the damping design, the performance of the PCBA test fixture is remarkably improved, and the PCBA test fixture has the advantages of high-precision positioning, high adaptability, stable clamping, PCB protection, convenience in operation and the like.

The application discloses a prior feature auxiliary directional coordinate attention remote sensing road extraction method, and relates to the technical field of remote sensing image processing.The method comprises the following steps: extracting multi-source prior features representing road physical characteristics and optimizing and fusing weight to obtain a fused prior feature map; processing the RGB remote sensing image and the fused prior feature cooperatively to form a fused feature containing multi-scale semantic information and physical prior; predicting a pixel main direction angle in the feature through a directional coordinate attention mechanism, pooling the feature along the main direction and the orthogonal direction to generate an attention map and re-calibrate the original feature; performing step-by-step up-sampling on the decoder and introducing a deep supervision mechanism; and training the model by using a composite loss function containing a Dice loss, a Focal loss and a boundary perception loss.The application fully utilizes road physical characteristic prior knowledge, combines the directional coordinate attention mechanism to capture road geometric characteristics, and effectively improves the accuracy and integrity of remote sensing road extraction in a complex scene.

The utility model relates to a fixing device for processing a construction template, which is characterized in that fixed clamping plates are arranged on the lower side and the left side of the end surface of a worktable, a vertical sliding chute and a transverse sliding chute are respectively arranged on the upper side and the right side of the end surface of the worktable, and movable clamping plate components are arranged in the sliding chutes, so that a multi-directional clamping structure for the construction template is formed; the fixing stability and reliability of the formwork can be effectively improved, displacement of the formwork in the machining process is avoided, and the machining precision and quality of the construction formwork are guaranteed; the arranged synchronous driving device can drive the two movable clamping plate assemblies to synchronously move inwards or synchronously move outwards, the synchronous driving mode is easy and convenient to operate, the workload of operators is greatly reduced, construction formworks of different specifications can be rapidly adapted, rapid and accurate fixing of the formworks of different sizes is achieved, and the construction efficiency is improved. The machining efficiency of the construction formwork is remarkably improved, and the machining cost is reduced.

This invention discloses a universal cryogenic valve heat leakage performance testing device and method, belonging to the field of valve testing technology. It includes: a cryogenic valve to be tested installed on the upper end of a cryogenic thermostat; the valve seat of the cryogenic valve to be tested connected to a valve heat exchanger via a pipe clamp; a first cold shield surrounding the valve seat; a valve support including a first flange adapted to different cryogenic valves to be tested; two cold shields installed inside the cryogenic thermostat, both with modular sidewall designs, flexibly adaptable to different cryogenic valves to be tested; two heaters connected to a temperature controller respectively installed on the heat sink and the pipe clamp; a GM refrigeration unit installed inside the cryogenic thermostat, including two-stage cold heads; a second cold shield surrounding the two-stage cold heads; a secondary cold head with a secondary heat exchanger connected to the valve heat exchanger; a helium supply device connected to the primary heat exchanger on the primary cold head; a helium recovery device connected to the valve heat exchanger; and a vacuum pump unit connected to the cryogenic thermostat. This invention improves testing efficiency and device utilization.

The utility model relates to the technical field of automobile sealing parts, and disclose a kind of sealing strip of automobile window convenient to replace, including sealing strip main part, the inner side upper portion of sealing strip main part is provided with first sealing assembly, and the inner side lower portion of sealing strip main part is provided with second sealing assembly.The sealing strip of automobile window convenient to replace, the elastic clamping structure is formed by the rubber bending portion and rubber inclined portion of first sealing assembly, cooperate rubber arc-shaped end, can tightly adhere to the outer wall of window glass, by setting nylon flocking layer, the friction noise when window glass is lifted can be reduced, further sealing gap can be reduced, realize first seal, the second seal is formed by the arc lip in second sealing assembly, the double sealing structure formed by the cooperation of first sealing assembly and second sealing assembly, solve the problem that sealing contact area is small in the prior art, and gap is prone to appear.

The utility model discloses a filter support, including fixed frame, two active elements, two driven module and transmission part. Active element and driven module all are opposite fixed frame mobile setting, and transmission part is opposite fixed frame rotation setting. Two active elements and two driven module are along annular arrangement, and a driven module is located between two active elements. Active element and transmission part transmission connection, and driven module also with transmission part transmission connection. When active element is opposite fixed frame mobile, can drive transmission part opposite fixed frame rotation, and then promotes driven module to move to the same mobile direction with active element. The structure realizes the cooperation of active element and driven module through transmission part, improves the adjustment flexibility, can better adapt to different caliber lens, reduces the dark corner, satisfies the diversified shooting demand.

The present application relates to the technical field of welding equipment and welding process, and discloses a flange web plate welding system and a welding method, which comprises a support displacement mechanism, a first welding robot and a second welding robot fixedly arranged on the outer sides of the two ends of a tower pole respectively, a web plate automatic positioning device, a visual measurement system and a control system. The control system performs a three-stage welding process: in the first welding stage, all the web plates are completed in a batch symmetrical manner; in the second welding stage, intermittent annular welds are completed; in the third welding stage, before welding continuous annular welds, the root gap distribution is scanned by a weld tracking sensor, and a variable parameter welding strategy is dynamically generated according to the gap distribution to realize variable gap adaptive welding. The present application solves the problem of difficult manual positioning of the web plate, realizes full-circle welding in a half-circle working space, effectively controls welding deformation, and significantly improves welding quality and production efficiency.

The utility model belongs to welding equipment technical field, concretely relates to a positioner, including the chassis, two drive cases, the turnover support, rotation drive mechanism, driven support mechanism, two support pedestals, displacement adjusting mechanism and two end face supports, the utility model discloses the stable rotation and accurate positioning of workpiece have been realized through the turnover support of two end supports, and the stability and precision of welding have been effectively promoted, still utilize the support pedestal of slidable adjustment and the replaceable end face support, the quick adaptation of multiple size specifications workpieces has been realized, by this, the versatility of device has been enhanced and the adjustment time has been shortened.

This application discloses a knowledge- and data-driven elastic positioning method, system, and storage medium. The method includes: generating a knowledge graph based on a knowledge base in the positioning domain; the knowledge base includes multiple pieces of first knowledge information, including entity pairs in the positioning domain, relationships between entity pairs, and a first confidence level of the relationships; nodes in the knowledge graph represent entities, edges in the knowledge graph represent relationships between different entities, and the attributes of the edges include the first confidence level of the relationship represented by the edge; inferring a positioning model applicable to the target object based on currently available information sources, observation data of the available information sources for the target object, and the type of observation data; the positioning model includes positioning parameters, observation equations, and state transition equations; and locating the target object based on the observation data and the positioning model to obtain the positioning result of the target object.

The utility model relates to the technical field of pulverized coal sampling devices, and discloses a negative pressure suction type pulverized coal sampling device which comprises a pneumatic cylinder, a plurality of pistons are fixedly connected to the driving end of the pneumatic cylinder, a first connecting pipe is slidably connected to the outer portions of the pistons, and a second connecting pipe is fixedly connected to one end of the first connecting pipe. Two fixing rings are fixedly connected to the inner wall of the second connecting pipe, a sliding way is formed in the inner wall of each fixing ring, a sliding plate is slidably connected to the inner wall of each sliding way, and a connecting assembly is slidably connected to the bottom of the second connecting pipe. According to the utility model, after pulverized coal enters the connecting pipe II through the feed opening, the pneumatic cylinder is started, the driving end of the pneumatic cylinder drives the plurality of pistons to do reciprocating rectilinear motion in the connecting pipe I, the sliding plate slides along the slideway on the inner wall of the fixing ring under the constraint of negative pressure suction force and a mechanical structure, and the sliding block is driven by the connecting rod to synchronously move, so that the pulverized coal in the feed opening is extracted; and sampling operation is completed.

The invention provides a log analysis method and system based on a large language model, and belongs to the technical field of log analys.The method comprises the steps that anti-fact rewriting is conducted on a to-be-analyzed log, and multiple log variants are obtained; log parameters are extracted from the log variants through the large language model to serve as intermediate variables, and the confidence coefficient of each intermediate variable is determined; performing correctness scoring on each intermediate variable based on statistical information of a historical log corpus knowledge base; determining a comprehensive score of each intermediary variable according to the confidence coefficient of the intermediary variable and the correctness score of the intermediary variable; and screening the medium variable with the highest comprehensive score as a log parameter of the log to be analyzed, and generating a log template of the log to be analyzed according to the log parameter of the log to be analyzed. According to the log analysis method, the stable semantic structure of the log can be more emphasized in the log analysis process, and the accuracy and generalization ability of log analysis are improved.

This invention discloses a method and system for identifying abnormal driver behavior based on continuous learning, relating to the field of driving behavior detection technology. The method includes dividing a driver monitoring image into image blocks and projecting them into feature vectors, adding positional encoding, and combining extracted prompt features with segmentation into prompt vectors to achieve dual coverage of global and key local features, improving feature extraction accuracy. The two types of vectors are concatenated into a fused feature sequence, input to a pre-trained Vision Transformer model with frozen parameters, and enhanced features are extracted through a self-attention mechanism. Then, a global feature vector is obtained through average pooling. Continuous learning is achieved by outputting a vector of all seen task logic values, using a binary mask for filtering, and classifying using the argmax function. This allows for adaptation to behavior category expansion, balancing real-time performance with stability in complex environments, improving the accuracy of similar behavior recognition, and making it easily deployable in in-vehicle scenarios.