10results about How to "Solve uneven distribution" patented technology

The utility model discloses injection molding machine waste gas collecting device, including main body frame, shaking mechanism, flow regulating mechanism and adjusting auxiliary mechanism, the shaking mechanism includes processing jar, drive motor, support axle, connecting hose and adding pipe, the flow regulating mechanism includes adjusting pipe, inner rotary frame, threaded rod, thread bush, moving frame, layer whirlpool board and inner fixed frame, make processing jar do regular shaking movement through drive motor drive support axle, effectively solved the problem of uneven distribution of waste gas in traditional device, and this dynamic shaking design promotes the full mixing contact of waste gas and auxiliary agent, eliminates the airflow dead angle and stratification phenomenon in processing jar, adopts the accurate transmission design of threaded rod and thread bush, drives moving frame to do linear motion through the rotation of inner rotary frame, makes the clearance between layer whirlpool board and inner fixed frame accurate and adjustable, and this design solves the problem that the waste gas flow of traditional device is difficult to accurately regulate.

The utility model relates to the related technical field of rack adjusting pressing block cooling mechanisms, and one embodiment of the utility model provides a rack adjusting pressing block cooling mechanism which comprises a frame body, a bottom frame and a shell, the bottom frame is fixed outside the frame body, the shell is arranged in the frame body, a cooling assembly is arranged in the shell, a first conveying belt is arranged in the frame body, and a second conveying belt is arranged in the frame body. The first conveying belt penetrates through the interior of the shell, the conveying positioning assembly is arranged on the frame body, the discharging assembly is arranged outside the frame body, the cooling assembly comprises an inner cover, the inner cover is arranged in the shell, a cavity is formed in the top of the inner cover, a water inlet pipeline is arranged at the top of the inner cover and extends to the exterior of the shell, and spraying holes are formed in the bottom in the cavity. By means of the technical scheme, the technical problems that in the prior art, due to the fact that discharging is not smooth, the pressing blocks are prone to being stacked near the discharging opening, and the stacked pressing blocks are squeezed mutually, and deformation can be possibly caused are solved.

This invention relates to the field of IoT device identification and machine learning technology, and proposes an IoT device identification method and system based on incremental federated learning. The method includes: Step S1, each gateway node preprocesses and extracts features from network traffic to generate local feature vectors; Step S2, a single-layer self-organizing incremental learning neural network is used to dynamically cluster the feature vectors, and prototype data is selected to construct a local prototype set; Step S3, each node uploads the prototype data to a central server, which aggregates and distributes the global prototype set; Step S4, each node combines local data and global prototype data to perform local incremental training on the global model and uploads the model parameters; Step S5, the server uses a federated averaging algorithm to aggregate the model parameters, generate a new global model, and distributes it, repeating S4 to S5 until convergence; Step S6, if identification fails when a new device connects, the local clustering model is updated and a new round of training is triggered, enabling the global model to acquire the ability to identify new devices. The system includes: multiple gateway nodes (including data preprocessing, feature extraction, incremental clustering, and local training modules) and a central server (including data aggregation, model aggregation, and model distribution modules). Through the above scheme, the present invention achieves collaborative device identification that dynamically adapts to new device access, avoids catastrophic forgetting, and protects data privacy.

The utility model relates to a tablet friability measuring device, which comprises the following working procedures: firstly, building the device, mounting a transmission motor, a plurality of gears, a test cylinder and the like on a support frame body and a connecting frame body, mounting a partition plate in the test cylinder to form a test cavity, sealing the cylinder and mounting a miniature vibrator. The sealing cover is opened, the tablets are placed in the sealing cover and then tightened, the transmission motor is started, the motor drives the gear to enable the testing barrel to rotate, the tablets are subjected to uniform force in the testing cavity to complete friability testing, after testing is finished, the motor is closed, the miniature vibrator is started to shake off residual chips, and next testing can be conducted after the sealing cover is opened and the barrel is cleaned. The device can accurately test the friability of the tablets, and is convenient to operate and efficient to clean.

The utility model relates to the technical field of ceramic tile production equipment, and discloses a dry granule distribution platform and a dry granule machine, the dry granule distribution platform comprises a platform support, a driving roller, a driven distribution roller, a feeding belt and a distribution driving mechanism, the diameter of the driven distribution roller is smaller than that of the driving roller, and the driven distribution roller is located at the downstream of the driving roller; the platform support is provided with a straightening structure located behind the driven material distribution roller, and the straightening structure is used for maintaining the straightness of the driven material distribution roller. The straightness of the small-diameter driven material distribution roller is maintained by arranging the straightening structure, the consistent tightness of the feeding belt in the operation process is guaranteed, the speed difference of dry particles caused by different tightness degrees of the feeding belt is avoided, the problem that the dry particles are not uniformly distributed on the feeding belt is solved from the source, and the production efficiency is improved. The distance between each point on the surface of the driven material distribution roller and the feeding belt is kept consistent, so that the dry particles are uniformly extruded and pushed when passing through the material distribution roller, and the material distribution uniformity is further improved.

This invention belongs to the field of satellite remote sensing and red tide detection technology, and discloses an integrated method and system for generating and identifying broadband 3D samples of dominant red tide species. The method constructs an integrated model for generating broadband 3D red tide samples and identifying dominant species based on deep learning. It utilizes a red tide image generation module based on spectral feature transfer to obtain expanded samples of different dominant red tide species. A red tide dominant species identification module is constructed by integrating multi-scale feature extraction and cross-spatial attention mechanisms. The module is trained using a student-teacher semi-supervised learning model. Experimental results show that the model has good adaptability and can effectively identify three dominant red tide species: *Noctiluca scintillans*, *Noctiluca chloroticus*, and *Hacochloa erythrophora*, with an overall identification accuracy of 94.48%, which is 3.52%–8.66% higher than other comparative methods, providing a basis for red tide prevention and management.

This invention discloses a spray air intake device for a tubular PECVD equipment, comprising a reaction chamber, and an air intake spray plate, a graphite boat, and an exhaust plate disposed within the reaction chamber. The air intake spray plate and the exhaust plate are respectively installed above and below the graphite boat, or respectively installed below and above the graphite boat. The air intake end of the air intake spray plate extends to the outside of the furnace opening and the outside of the furnace tail of the reaction chamber. The front end of the reaction chamber is provided with a furnace door flange, and the rear end of the reaction chamber is provided with a furnace tail flange, which has multiple exhaust ports. During the process, the process gas is transported into the reaction chamber through the air intake spray plate, flows downward through the graphite boat, enters the exhaust plate, and is finally discharged through the exhaust ports on the furnace tail flange. This invention features a compact structure, convenient operation, high safety, and high gas distribution uniformity, effectively reducing the waste of process gas.

This application relates to the technical field of precast concrete curing equipment, and discloses a temperature- and humidity-adjustable precast concrete temperature-controlled curing box, including a support ring plate. A curing box is fixedly connected to the upper surface of the support ring plate, and a support block is fixedly connected to the side of the curing box. A servo motor is fixedly connected to the upper surface of the support block, and a threaded rod is fixedly connected to the output end of the servo motor. An internal threaded cylinder is threadedly connected to the surface of the threaded rod, and a movable plate is fixedly sleeved on the surface of the internal threaded cylinder. The operation of the servo motor drives the threaded rod to rotate, and the rotation of the threaded rod drives the movable plate to move through the internal threaded cylinder. The movement of the movable plate drives the second annular tube and the first annular tube to move respectively. When the second annular tube moves to the leftmost position, the servo motor drives the movable plate to move again through the internal threaded cylinder. The movement of the movable plate then drives the second annular tube and the first annular tube to move in opposite directions, which solves the problem of uneven steam distribution to a certain extent.

The embodiment of the invention provides a robot task generation method and system and computer equipment. The method comprises the steps that a task space tuple used for describing a robot task is determined; based on historical task data of description data corresponding to a preset task description item in the task space tuple, performing data sampling on the preset task description item to obtain a task description data set at least containing sampling data corresponding to the preset task description item; and providing the task description data set as a constraint condition for a proposal generator to generate a target task proposal. According to the method provided by the invention, the task space tuple is predefined for the robot task proposal, and the proposal generator is forced to generate the corresponding target task proposal based on the constraint of the task description data set through the set data sampling mechanism. Through the task proposal forcibly generated by the method, uncovered long-tail scenes, objects and skill combinations are explored, and the problem of non-uniform distribution of existing training data is solved.

This invention provides a method and system for harmonic mitigation in islanded microgrids. The method includes modeling an average model of the inverters in an islanded microgrid system with multiple inverters connected in parallel and containing nonlinear loads using the state-space averaging method; optimizing the inverter control using a low-frequency voltage compensation controller and a high-frequency disturbance compensation controller optimized based on the gradient descent method based on the average model of the inverters; estimating the state variables and harmonic disturbances of the islanded microgrid system using a second-order linear state observer designed based on the bandwidth tuning method; and mitigating the microgrid voltage harmonics caused by nonlinear loads using a linearized active disturbance rejection control method based on second-order sliding mode based on the estimated state variables and harmonic disturbances of the islanded microgrid system. This invention significantly improves the dynamic performance and robustness of harmonic compensation in microgrids.