119results about How to "Reduce drift" patented technology

The invention discloses a multi-layer semantic perception, distillation and semi-supervised cooperative training target detection method, and the method specifically comprises the following steps: constructing a data set: extracting a first part of images from image data, marking the first part of images to construct a supervised target detection data set, and taking the remaining images as an unmarked image data set, the data volume of the unlabeled image data set is greater than that of the supervised target detection data set; teacher model optimization: performing supervision training on the teacher model on the supervised target detection data set; constructing a teacher model, and executing self-distillation training on the teacher model; pseudo labels are generated for the unlabeled images through a teacher model, and adaptive screening is carried out based on confidence distribution; mapping a pseudo label to a strong enhanced sample through enhanced geometric transformation, carrying out semi-supervised training by using the strong enhanced sample and the pseudo label, and introducing a feature layer distillation constraint at the same time; optimizing a student model; and outputting the target detection model obtained through training.

The invention belongs to the field of multi-sensor fusion systems, and discloses a multi-sensor fusion system simultaneous positioning and mapping method and a related device, and the method comprises the steps: obtaining an environment image, a laser point cloud and IMU data; scene semantic information is extracted through a multi-modal large model; dynamically generating a weight matrix of vision and laser radar relative to an IMU (Inertial Measurement Unit) by utilizing a vision and point cloud condition deep neural network in combination with scene information and IMU observation; and performing local and global optimization by combining each sensor speedometer factor, an IMU pre-integration factor and the weight matrix, and finally outputting robot state estimation and map point coordinates. Through semantic understanding and a self-adaptive weight mechanism driven by a conditional deep neural network model, a fusion strategy can be intelligently adjusted before environment change or sensor degradation, the robustness, precision and consistency of a system in an unstructured scene are improved, and the problems of positioning drift and map failure caused by fixed weight in a traditional method are solved.

This invention relates to the field of medical device technology and discloses a surgical sternal closure fixator, comprising a main body, a male hook plate at one end of the main body, and a fixing mechanism on the main body. The fixing mechanism includes a flexible plug and a female hook plate. The flexible plug is located inside the main body, and the female hook plate is connected to the end of the flexible plug away from the male hook plate. The fixing mechanism includes a sliding mechanism, which includes a female hook plate located on the inner wall of the female hook plate facing the male hook plate, with one end of the female hook plate inserted into the flexible plug. The flexible plug contains an auxiliary mechanism and a rotating mechanism, the auxiliary mechanism being connected to the rotating mechanism. A wobbling mechanism is provided on the side wall of the female hook plate facing the male hook plate. This invention can adjust the gripping force and gripping position according to the expansion and contraction of the sternum during the patient's breathing, reducing local misfitting between the fixator and the sternum, which affects the stability of sternal fixation and improving stability.

This invention provides an intelligent front-end data acquisition system for boilers, comprising: a detection module, a data acquisition module, and a monitoring module; the detection module is used to acquire unit temperature data; the data acquisition module is a YS-24D data acquisition box, which is used to acquire data from the detection module. This invention provides an intelligent front-end data acquisition system and device for boilers, wherein the data acquisition module uses the YS-24D data acquisition box to acquire data from the detection module at unit temperature measurement points. The YS-24D data acquisition box is high-performance and highly reliable, with a hardware design employing a 32-bit low-power ARM processor, high integration, few peripheral components, high reliability, fast processing speed, high resolution, and reliable and accurate data. It uses a high-performance, high-precision 24-bit A / D converter, with all 24 channels being independent fully differential input loops, providing high resolution, low drift, and high stability.

This utility model relates to a steel structure support base, including a base plate, a column insertion tube at the upper end of the base plate, a support column inserted into the column insertion tube, pouring rods at the four corners of the base plate, and support plates on both sides of the bottom end of the base plate. This utility model relates to the field of steel structure technology. This steel structure support base first pours concrete into pre-embedded holes opened in the ground. Before the concrete dries, the pouring cylinder at the bottom end of the support plate and fixing anchors are inserted into the concrete to fix the support plate. Then, the base plate is placed on top of the support plate, and the pouring rod is screwed into the pouring cylinder, forming a pre-embedded hole for secondary pouring. This reduces the impact of concrete expansion after drying on the base plate and pouring rods, thereby reducing the possibility of the base plate shifting during pouring, which could lead to the support column shifting, thus improving the ease of base installation.

The utility model discloses a rubber -type press paper feed mechanism automatic deviation rectifying device, it includes support, and the lower surface fixed connection of support has the locating frame board, and the side surface fixed connection of locating frame board has motor three, and the output fixed connection of motor three has the conveyance gyro wheel, and the side surface fixed connection of conveyance gyro wheel has the connecting shaft, and the side surface transmission connection of connecting shaft has the belt, and the lower surface fixed connection of support has the photoelectric sensor, and the lower surface fixed connection of support has the support frame board no.

The utility model relates to the technical field of automatic feeding equipment, in particular to a sealing gasket inner ring transverse feeding mechanism which comprises a frame base, a material channel, a material pushing assembly and a material discharging assembly, the material channel, the material pushing assembly and the material discharging assembly are all erected on the frame base, the material channel is horizontally arranged on the upper surface of the frame base, and the material pushing assembly is arranged on the upper surface of the material channel. The material channel is used for bearing a plurality of transversely stacked sealing gasket inner rings, the pushing assembly is connected to one end of the material channel and used for pushing and transporting the sealing gasket inner rings transversely stacked on the material channel, and the discharging assembly is connected to the end, away from the pushing assembly, of the material channel and used for discharging the sealing gasket inner rings transversely stacked on the material channel. The feeding device has the advantage that abrasion of the inner ring of the sealing gasket in the feeding process is reduced.

The invention discloses closed ore crushing equipment capable of preventing dust from overflowing, and belongs to the technical field of ore processing, the closed ore crushing equipment comprises a bin body, side baffles are fixedly connected to the two sides of the upper portion of the bin body, and a fixing sleeve is fixedly connected to the upper portion of the bin body; a rotating main synchronizing wheel can pull a hinge rod to deflect, and then a sliding plate is pushed and pulled back and forth through the hinge rod, so that the sliding plate pushes and extrudes a traction rod through the chute wall of a chute, the traction rod drives a connecting rod to rotate through a fixed plate, and a spraying head can swing back and forth around the connecting rod; water supply components such as a faucet, a water tank and a water pump are externally connected to the external hose, stable input of a water source is achieved, water flow enters the spraying head through the external hose and is atomized or shunted by spraying holes of the spraying head to form uniform water mist, ore in the storage cavity is wetted, dust generated by crushing is subjected to dust falling treatment, and the ore crushing efficiency is improved. Dust diffusion and flying are inhibited, and the dust is prevented from polluting the working environment and harming the body health of operators.

This application belongs to the field of computer vision technology and discloses a cross-source point cloud registration method based on adversarial neural networks. The method includes: inputting a multi-frame LiDAR point cloud sequence and a UAV video sequence; segmenting each frame of the LiDAR point cloud into ground points and non-ground points and registering them to obtain a global LiDAR point cloud; performing motion recovery structure reconstruction on the UAV video sequence to generate a dense color point cloud; inputting the global LiDAR point cloud and the SfM dense color point cloud into an MMAlignNet network to construct a shared latent feature space; solving for the rigid transformation matrix from the LiDAR point cloud to the SfM dense color point cloud; and aligning the cross-modal point clouds according to the rigid transformation matrix to obtain a multimodal 3D reconstruction result. This application improves the registration accuracy, completeness, and robustness of large-scale outdoor environment 3D reconstruction by fusing UAV imagery and mobile LiDAR data, combined with cross-modal feature alignment and geometric constraint optimization methods.

The utility model relates to fertilizer production technical field, and disclose a kind of ration feeding mechanism for fertilizer production, including feeding cylinder, bottom bracing, apron, feed hopper, conveying pipe, main shaft, driving ring, feeding plate, motor, drive shaft, discharge chute, discharge hopper, guide plate, connecting seat, round groove, spring, in the utility model, the sealing holding space is formed between the two groups of feeding plate and closure plate, when conveying pipe is conveyed to the material between the two groups of feeding plate by feed hopper, two groups of feeding plate and closure plate and guide plate can store raw materials, avoid raw materials and feeding cylinder inside contact, when the feeding plate rotation of driving ring outside is driven by motor starting, two groups of feeding plate can directly move raw materials, when guide plate between two groups of feeding plate moves to discharge chute position, two groups of guide plate bottom are without supporting force, guide plate can be turned down and open discharge under the weight of raw materials extrusion, after discharging, guide plate can be automatically reset by spring.

The invention relates to a self-induced crystallization phase change storage unit and a preparation method thereof, the self-induced crystallization phase change storage unit comprises a phase change storage medium layer, the phase change storage medium layer is a multi-layer structure formed by phase change material layers and self-induced crystallization InyTe100-y material layers which are vertically stacked, periodically and alternately grown, and y is more than or equal to 20 and less than or equal to 80. The self-induced crystallization phase change memory cell has the characteristics of rapid data writing capability and long service life, can realize high-low resistance difference of more than three orders of magnitude, effectively improves the multi-resistance state memory stability, and can solve the problems of high power consumption, short service life, slow phase change speed and the like of a phase change memory in the prior art.

The utility model relates to battery diaphragm technical field discloses a wrinkle removing equipment for battery diaphragm processing, including base, the base bottom fixedly connected with two supports, the base top front side fixedly connected with side plate no.

This invention discloses a method for dynamically adjusting the grayscale of a liquid crystal display (LCD) to conform to human eye brightness perception, comprising the following steps: S1, acquiring the electro-optical characteristic curve of the LCD; S2, determining the optimal grayscale voltage range of the LCD; S3, acquiring ambient light brightness in real time; S4, determining the brightness distribution of the LCD; S5, determining the range of human eye brightness sensitivity index; S6, dynamically adjusting the grayscale index range of the LCD; and S7, implementing grayscale driving on the LCD. By determining the optimal grayscale voltage range and dynamically adjusting the grayscale index, this invention can effectively reduce grayscale shift at different viewing angles. Furthermore, under different ambient light brightness and LCD brightness conditions, it can match the human eye brightness sensitivity index with the LCD grayscale index, achieving a display effect that conforms to human eye brightness perception.

The utility model relates to gas -liquid heat and mass transfer equipment technical field especially relates to a corrugated sheet and novel filling, including the air inlet area, mixed air area, heat exchange area and air outlet area that set gradually along the air flow direction, mixed air area is located between the air inlet area and heat exchange area for the even distribution of the air volume that enters, the heat exchange area forms the continuous zigzag corrugation that penetrates the upper and lower ends of sheet, for guiding the spray water to flow from top to bottom, the passage of air outlet area is structured as the circular arc curve structure that arcs upwards along the air outlet direction. This scheme has the advantages of improving the air distribution uniformity, reducing the outlet floating water, avoiding the installation error and optimizing the gas -liquid contact efficiency.

This invention discloses a plant protection drone for precision seeding, belonging to the field of agricultural drone technology. It includes a central body and four arc-shaped arms that can move relative to the central body. Each arm is equipped with a power unit and rotors. Driven by a deformation drive mechanism, the arms can switch between a cruising state (forming a circular shape) and an operational state (arching inward to form a three-dimensional structure). In the cruising state, the rotor planes are coplanar, resulting in high aerodynamic efficiency; in the operational state, the rotor planes are raised and moved away from the seeding device, effectively isolating the downwash airflow from interfering with the seeded material, significantly improving seeding accuracy and uniformity. This invention solves the technical problem of seeding drift caused by rotor wind fields in existing plant protection drones.

The utility model provides a kind of welding device of visual positioning, it includes welding robot, welding robot has mechanical arm, and mechanical arm tip is provided with mounting head, and mounting head is installed with welding torch and visual positioning equipment, and mounting head is also fixedly connected with mounting plate, welding torch has the welding end of departing from mounting plate and the wiring end similar to mounting plate, and mounting plate is detachably connected with suction pipe, and suction pipe has the inlet end towards welding torch welding end side, and suction pipe other end passes through mounting plate setting, and suction pipe and visual positioning equipment are arranged in two sides of welding torch.This utility model solves the problem that the overall efficiency cannot be improved in the prior art to avoid the generation of a large amount of welding fume.

The utility model relates to spraying equipment, and provides aluminum veneer spraying equipment which comprises an equipment shell, a control panel, a bottom plate, a material receiving box and the like. A control panel is arranged on one side of the front portion of the equipment shell, notches allowing materials to pass through during conveying are formed in the left side and the right side of the equipment shell, a transverse notch is formed in the upper portion of the equipment shell and used for a hanging line hanger to move and pass through, a bottom plate is fixedly arranged on the lower portion in the equipment shell, and the interior of the equipment shell is divided into two spaces which are distributed up and down through the bottom plate. A collecting box is fixedly arranged at the bottom of the bottom plate. Through cooperation of the material receiving box, the conical plate, the chip leaking groove, the connecting pipe, the flow guide pipe and the separating piece, spraying residual powder in the equipment shell is effectively cleaned and recycled, accumulation of the powder in the equipment shell is reduced, the interior of the equipment is kept clean, secondary utilization of the spraying powder is achieved, and material waste is reduced.

The application discloses an eye lotion containing PHMB and a preparation method thereof, and belongs to the field of eye care preparations. The eye lotion takes PHMB as a bacteriostatic component, is matched with isotonicity regulators, buffers, humectants and EDTA2Na, and simultaneously adds trehalose and allantoin to construct a synergistic stable protection system. The eye lotion is prepared through a process flow of low-temperature light-shielding, preparation of a base liquid first and then addition of PHMB, two-stage sterilization filtration and aseptic filling. The application solves the technical problems that PHMB is easy to degrade in a liquid preparation, has poor stability, and the effective component is easy to attenuate after opening and use. Meanwhile, EDTA2Na and PHMB have a synergistic effect, trehalose and allantoin further stabilize the PHMB structure from a molecular level and inhibit oxidative degradation, so that the product can realize wide-spectrum and high-efficiency bacteriostasis at a low concentration. The obtained eye lotion is mild and non-irritating, clear and stable, and can still maintain stable physicochemical and bacteriostatic properties for a long time after opening, is suitable for industrial production, and can be used for daily eye cleaning, flushing, moisturizing and bacteriostatic care.

The invention relates to the technical field of microfluidics, and particularly discloses a cell communication micro-fluidic chip with a cell capturing structure and application of the cell communication micro-fluidic chip. The chip comprises main channels, and the two main channels are arranged in parallel at an interval; the cell interception structures are arranged in the main channels, grooves capable of accommodating at least one cell to be cultured are formed in the incident flow surfaces in the main channels, and at least one opening only allowing a culture solution to flow out is formed in each groove, so that the cells can stably stay and are uniformly distributed, and meanwhile, fluid is allowed to pass through; the culture solution interaction structure is arranged between the two main channels and used for interaction of culture solutions in the two main channels, transverse exchange of the culture solutions and cell secretions is achieved, cell migration is prevented at the same time, and therefore the non-contact cell communication model is constructed. The cell communication micro-fluidic chip can efficiently simulate the cell paracrine communication process, and is suitable for various cell communication research scenes such as inflammatory response, immune regulation, tumor microenvironment, stem cell secretion factor effect and the like.

The utility model relates to ball mill technical field, and disclose a rolling type bearing ball mill device, including ball mill body, the feed inlet of ball mill body is connected with the feed inlet box fixedly, the bottom fixed connection of feed inlet box has the fixed plate, the top of fixed plate is provided with the motor, the output fixed connection of motor has the cam, the inside slide connection of feed inlet box has the movable rod, the front end fixed connection of movable rod has the fixed disc, the other end fixed connection of movable rod has the U type board, the utility model discloses when grinding the larger gravel and handles, through the motor start operating, the cam of its output rotates along, because the eccentric structure of cam will periodically extrude or push the fixed disc, and the fixed disc drives movable rod and moves, and movable rod drives U type board and moves, thereby making the gravel cone of U type board rear side break the gravel, so that the subsequent gravel falls into ball mill body, improves the grinding efficiency.

This invention discloses a display panel, its driving method, and a display device. The display panel includes a pixel circuit and a light-emitting element. The pixel circuit includes a light-emitting control module, a driving module, and a compensation module. The light-emitting control module includes a first light-emitting control module, which selectively provides a first power signal to the driving module. The driving module provides a driving current to the light-emitting element and includes a driving transistor. The compensation module compensates for the threshold voltage of the driving transistor. The operation of the pixel circuit includes a light-emitting stage and a biasing stage. In the biasing stage, the first light-emitting control module and the driving module are turned on, and the compensation module is turned off. The driving transistor is disconnected from the light-emitting element, and the first power signal is written from the source of the driving transistor to its drain to adjust the bias state of the driving transistor. This invention reduces the threshold voltage drift of the driving transistor.

The utility model relates to the technical field of sealing brochure, and discloses a butterfly mounting sealing brochure machine capable of automatically measuring thickness, which comprises a base, a control seat is fixedly connected to the right side in the base, a placing plate is fixedly connected to the top end of the base, and a supporting plate is fixedly connected to the left side of the top end of the base. The bottom end of the right side of the supporting plate is provided with a heating seat, the right side of the supporting plate is provided with a pressing plate, and the top end of the pressing plate is provided with an automatic thickness measuring mechanism. During use, the top end of the pressing plate is fixedly connected with a mounting seat, the top end of the mounting seat is fixedly connected with an infrared distance meter, and the infrared distance meter is matched with a receiving plate in position; the distance between the pressing plate and the placing plate is fixed, when the pressing plate moves downwards, data of the infrared distance measuring instrument is changed, the two sets of data are processed through the control base, and therefore the thickness of a sealed object is detected, and a worker can visually know the thickness through the display screen.

The invention relates to a drilling machine power linkage regulation and control system adaptive to multiple drilling processes, and relates to the technical field of drilling process control, the drilling machine power linkage regulation and control system comprises a process selection unit, a linkage control module and a parameter pre-storage unit, the parameter pre-storage unit stores the rotating speed of a rotating disc, the lifting speed of a winch and damping parameters of a water brake corresponding to at least two drilling processes, the linkage control module is connected with the process selection unit, the parameter pre-storage unit, a power machine of the drilling machine, a rotating disc driving part, the winch and the water brake, and the linkage control module responds to a selection instruction. According to the technical scheme, the corresponding technological parameters are called and synchronously output to the execution components, the effects of achieving multi-drilling-process one-key parameter matching, simplifying the operation process, guaranteeing precise adaptation of the parameters of the components, reducing equipment loss and improving the drilling stability are achieved, meanwhile, the execution components are regulated and controlled, and complexity and errors caused by manual parameter adjustment are avoided.

The present application relates to the technical field of detection circuit suitable for various electric energy information collection terminals, and discloses a detection circuit method suitable for various electric energy information collection terminals. The method sets the ambient temperature, calibrates the shunt resistor and the thermistor, constructs a three-order resistance-temperature mapping relationship, and calculates the thermal resistance and the thermal response characteristics to realize accurate modeling. The thermistor is attached to the shunt resistor and forms a thermal coupling structure by adding heat-conducting silicone grease. The constant current source and the differential amplifier are used to collect voltage, convert resistance value to temperature in real time, calculate the instantaneous current based on the heat balance equation, and then complete energy integration and grade judgment to output various electric parameters. The method integrates modeling, collection, conversion and inversion processes, constructs a complete thermal-electric detection link, does not need traditional current sensors, has the advantages of compact structure, low cost, flexible deployment and the like, and is suitable for low-power distributed terminals.

This invention relates to a federated learning training system and method based on layered privacy protection. Distributed clients deployed locally by multiple participants perform model training based on local data, outputting encrypted model parameters. A federated coordination center receives and aggregates the encrypted parameters uploaded by the clients, generates and distributes a global model, and the application service layer provides training services to end users based on the aggregated global model. The privacy preprocessing module of the distributed clients implements differentiated privacy protection during the training process based on data sensitivity, and the adaptive privacy budget allocation module of the federated coordination center dynamically adjusts the privacy protection strength of each client. This invention significantly reduces the risk of data leakage, meets compliance requirements, significantly improves the accuracy of personalized recommendations and skills assessment, greatly enhances the coherence and operability of the entire training process, effectively reduces hardware investment costs, breaks down resource barriers between institutions, lays the foundation for long-term cross-institutional collaboration, and continuously iterates and optimizes system performance.

The application discloses a kind of for bicuspid valve clamp surgery navigation multi-modal image automatic registration method, comprising the following steps: acquisition patient preoperative heart CTA image, intraoperative CBCT image and intraoperative TEE image / corresponding perspective image, and the CTA, CBCT and TEE image of this acquisition are pretreated;Complete CTA to CBCT three-dimensional automatic coarse registration, establish unified patient coordinate system, and combine with heart and breathing motion compensation, dynamic fine registration is carried out to coarse registration result;Estimate TEE probe pose and imaging plane, identify the common visual target in TEE and CBCT / perspective, complete TEE and CBCT / perspective dynamic automatic registration;Under unified coordinate system, fuse each modality image, generate the multi-modal navigation interface and navigation information of surgery.The method of the application can realize automatic, fast, accurate multi-modal space registration, improve the standardization degree and safety of bicuspid valve clamp surgery navigation.

This utility model provides an automatic feeding device for finned tube production, relating to the field of finned tube processing. It includes a height adjustment mechanism comprising a support base, a stabilizing plate, a limiting groove, a support frame, a drive motor, a drive threaded rod, and an internally threaded moving rod. A feeding mechanism is located at the top of the height adjustment mechanism, comprising a conveyor frame, transmission rollers, a servo motor, auxiliary rollers, and a limiting block. A stabilizing mechanism is located on the inner wall of the feeding mechanism, comprising a fixed frame, a drive groove, a bidirectional threaded ball screw, a rotary knob, an internally threaded moving block, an arc-shaped connecting frame, a clamping frame, a roller frame, and clamping rollers. This utility model, through height adjustment of the conveyor frame, allows the limited raw material tubes to be aligned with the feeding point of subsequent processing equipment, facilitating the limiting of different raw material tubes and increasing the applicability of the device.

This invention discloses a highly sensitive detection device and method for immersion-type ultrasonic signal detection in liquids. The invention provides a circular diaphragm with concentric corrugations and a center-thinned structure, and uses this diaphragm as a reflective surface of an optical interference cavity to construct a highly sensitive detection device for immersion-type ultrasonic signal detection in liquids. The diaphragm, used to sense ultrasonic signals, has identical concentric corrugations and a center-thinned structure on both sides, enabling the diaphragm to achieve higher mechanical sensitivity without significantly reducing its natural frequency. The concentric corrugations effectively release initial residual stress introduced during processing and packaging, reducing surface warping and baseline drift. Simultaneously, a replaceable acoustic membrane is constructed in front of the diaphragm, achieving high sound transmission and anti-contamination under long-term immersion in liquid conditions. This detection device can be directly placed in the liquid for detection, improving the sensitivity of ultrasonic signal detection while maintaining a wide frequency range, preventing contamination of the detection element, and ensuring the long-term stability of the detection device.

The utility model relates to the field of earmuff production, in particular to an earmuff flanging machine which comprises a mounting frame body, a pressing assembly and a flanging assembly, the mounting frame body is provided with an earmuff placing seat, the earmuff placing seat is used for placing an earmuff, and the pressing assembly comprises an earmuff pressing block and an earmuff separating plate; the earmuff pressing block is used for applying vertical pressure to the earmuff placed on the earmuff placing seat, and the earmuff separating plate is matched with the earmuff pressing block in a sliding mode in the vertical direction; when the earmuff pressing block is close to the earmuff placing seat, the earmuff separating plate is in clearance fit with the earmuff; when the earmuff pressing block is far away from the earmuff placing seat, the earmuff separating plate abuts against and is matched with the earmuff; and the edge folding assembly is used for folding the edge of the earcap. The earmuff folding device has the effect of conveniently separating the earmuff subjected to edge folding from the pressing block.

The application discloses a drilling device for geotechnical engineering investigation, which comprises a bottom plate, a driver arranged above the bottom plate, a machine body arranged on the upper surface of the bottom plate, a transmission connection between the output end of the driver and the input end of the machine body through a belt, a connecting piece arranged on one side of the machine body, and an adjusting device arranged on the surface of the bottom plate. The adjusting device comprises two hollow frames, and the two hollow frames are arranged on the two sides of the bottom plate respectively. The adjusting device is arranged to facilitate position adjustment of the equipment. The existing equipment is usually of a fixed structure after assembly and drilling, and needs to be drilled and investigated at different positions during drilling. Due to the over-heavy equipment, operation is inconvenient during small-range movement, the workload of workers is increased, the efficiency of the equipment during investigation at different positions is low, and the overall usability of the equipment is improved.