449results about How to "Improve positional stability" patented technology

The invention discloses a dynamic environment dense point cloud SLAM (Simultaneous Localization and Mapping) method and system based on YOLOv11 and ORB-SLAM 3. According to the method, real-time target detection and image segmentation technologies of a YOLOv11 model are integrated into an ORB-SLAM 3 framework, so that high-precision and robust visual SLAM in a dynamic environment is realized. A traditional convolution layer is replaced by using a balanced convolution method GSConv layer in a YOLOv11 model, and a traditional C2f layer is replaced by using a new feature fusion module VoVGSCS layer, so that a Neck structure of the YOLOv11 is improved, and a lightweight network model is realized. Experimental data prove that the pose estimation precision of the method in a dynamic environment is remarkably superior to that of an existing visual SLAM algorithm.

The invention relates to a UWB-based man-machine real-time positioning method in a long-distance tunnel hole. The method comprises the following steps: S1, collecting original ranging information of integrated signal characteristics; s2, correcting an original distance based on signal quality; s3, carrying out NLOS signal identification based on SVM (Support Vector Machine); s4, NLOS ranging error elimination based on an error distribution fitting model; s5, preliminarily resolving a tag position stake number; s6, label position correction based on Kalman filtering; and S7, determining a man-machine position based on label matching. According to the invention, the UWB positioning system is used for positioning and tracking personnel machinery in a hole, so that real-time transmission and analysis of man-machine position pile number information in the hole are realized, and management personnel can timely and accurately master man-machine operation positions; according to the man-machine real-time positioning method, the influence of the complex construction environment in the tunnel hole is reduced, and the man-machine positioning precision and stability in the tunnel hole are effectively improved.

The invention relates to the field of environment monitoring, and discloses a mobile VOCs rapid detection and positioning system, which comprises a data acquisition module, a data fusion module, a concentration gradient analysis module, a Bayesian filtering module and a particle filtering optimization module, the data acquisition module is used for acquiring VOCs concentration data and multi-source positioning data; the data fusion module outputs high-precision position information for the positioning data; the concentration gradient analysis module is used for calculating a concentration gradient based on the VOCs concentration data and meteorological information and simulating concentration field distribution; the Bayesian filtering module dynamically updates the probability distribution of the pollution source position in combination with the concentration field distribution and the fusion position information; and the particle filtering optimization module optimizes the Bayesian filtering result. The system is suitable for various complex environments, can realize rapid detection of VOCs and high-precision positioning of pollution sources, and has good real-time performance, precision and environmental adaptability.

The invention belongs to the technical field of bridge expansion joint welding, and particularly relates to a bridge expansion joint welding fixing device with a limiting mechanism, which comprises a welding seat, a processing seat fixed on the surface of the welding seat and bridge expansion joint profile steel attached to two sides of the surface of the processing seat, and a limiting assembly is mounted on the surface of the welding seat. The device is provided with the limiting assembly, the position of the bridge expansion joint profile steel can be effectively limited, it is guaranteed that the bridge expansion joint profile steel is kept in a stable state in the welding process, the welding quality can be better improved, and welding defects caused by position deviation of the bridge expansion joint profile steel are reduced; according to the bridge expansion joint profile steel limiting device, collision or damage caused by displacement of the bridge expansion joint profile steel is reduced, meanwhile, the bridge expansion joint profile steel is pressed and limited through the pressing plates at the four corners, limiting force can be applied to the bridge expansion joint profile steel in multiple directions, the overall limiting effect is enhanced, the profile steel can better resist external force interference in the welding process during welding, and the welding quality of the profile steel is improved. And smooth welding is ensured.

The invention provides a mine personnel positioning method and system based on wireless communication, and relates to the technical field of mine safety, and the method comprises the steps of data collection, model construction, structure prediction, base station position and number definition, UWB base station installation, base station parameter setting, personnel positioning and positioning display. The system comprises a data acquisition module, a model construction module, a structure prediction module, a base station position and number definition module, a UWB base station installation module, a base station parameter setting module, a personnel positioning module and a positioning display module. According to the method, the installation positions and the number of the UWB base stations are defined, the UWB base stations are installed and base station parameters are set according to the coal mine channel prediction number and the terrain prediction structure, personnel positioning and displaying are carried out through the UWB base stations, the signal interference influence of the coal mine channel number and the dynamic change of the terrain structure on radio waves in the channel propagation process is overcome, and the working efficiency is improved. The purpose of improving the positioning accuracy of the underground personnel is achieved.

The invention discloses a tensile testing machine for artificial leather processing and a detection process thereof, and belongs to the technical field of artificial leather processing.The tensile testing machine comprises a machine base placed above a workbench, a guide base is fixedly installed at the upper end of the machine base, a sliding way is formed in the guide base, and a motor is fixedly installed on the inner side of the machine base; a threaded rod is fixedly mounted at the output end of the motor; the sliding seat is arranged on the inner side of the sliding way in a sliding mode, a monitor is fixedly installed on the outer side of the sliding seat, and a first clamping assembly is fixedly installed at the detection end of the monitor; the second clamping assembly is fixedly mounted on the upper surface of the machine base; and the two winding pieces are elastically and rotationally mounted on the first clamping assembly and the second clamping assembly correspondingly. According to the tensile testing machine for artificial leather processing and the detection process thereof, the end part of artificial leather can be stably clamped, the detection stroke can be shortened in the detection process, meanwhile, an operator can be prevented from being hurt after the artificial leather is broken, and the use safety is high.

The invention discloses a novel floating type converter station platform suitable for deep and far sea, and belongs to the technical field of offshore platforms, the novel floating type converter station platform comprises a floating platform, a buoyancy cabin, a stand column, a water ballast tank and a mooring rope, the floating platform is used for supporting a converter station and related operation equipment, and the floating platform is located on the sea surface; the buoyancy cabins are correspondingly arranged on the bottom surface of the floating platform and provide buoyancy support for the floating platform; the four stand columns are correspondingly connected to the four corners of the floating platform, and the sectional area of the water ballast space is at least two times that of the stand columns. The four water ballast tanks are correspondingly arranged at the bottoms of the stand columns, and the gravity center and buoyancy of the converter station platform are adjusted by controlling injection or drainage of ballast water of the water ballast tanks. The mooring cables comprise a plurality of mooring cables which are correspondingly arranged at the four corners of the floating platform respectively, and the floating platform is fixed to the seabed through multi-point anchoring. The floating type converter station platform can flexibly adapt to the deep and far sea environment, the construction cost and the collapse risk are reduced, and the bearing capacity, the structural strength and the stability of the floating type converter station platform can be improved.

The invention discloses a portable mobile terminal collaborative relative positioning method and system, and the method comprises the steps: obtaining multi-source data, and carrying out the preprocessing of the multi-source data; wherein the multi-source data comprises an RTK differential value, a GNSS observed quantity and a Bluetooth observed quantity; gross error detection is carried out on the preprocessed multi-source data; constructing a fusion observation equation according to the RTK differential value after gross error detection, the GNSS observed quantity and the Bluetooth observed quantity, and obtaining an estimated value of a positioning parameter through a Kalman filtering algorithm according to the fusion observation equation; and carrying out relative position calculation according to the estimated value of the positioning parameter to obtain a relative positioning result of the portable mobile terminal. By adopting the technical scheme of the invention, the relative positioning with higher precision and moderate cost is realized on the portable mobile terminal so as to meet the high-precision relative positioning requirement under diversified application scenes.

The invention discloses a foundation pit supporting structure, and relates to the technical field of foundation pit supporting, and the foundation pit supporting structure comprises a supporting plate, a plurality of water absorption pieces and a plurality of positioning rods; a plurality of mounting grooves are formed in one side of the support plate, and the plurality of water absorption pieces are respectively arranged in the plurality of mounting grooves; a plurality of penetrating holes are formed in the supporting plate in a penetrating mode, a sharp thorn is arranged at one end of the positioning rod, and after the sharp thorn penetrates into soil at the bottom of a foundation pit, the part, located in the penetrating holes, of the positioning rod blocks openings in the bottoms of the penetrating holes; a plurality of water passing spaces, a plurality of first water seepage holes and a plurality of second water seepage holes are further formed in the supporting plate; the water passing space is communicated with the mounting groove through the plurality of first water seepage holes, and the water passing space is communicated with the through hole through the plurality of second water seepage holes. The supporting effect can be effectively achieved on the surrounding foundation pit with the high soil humidity, and meanwhile the probability of water permeation can be effectively reduced.

The invention discloses a long-linear-array high-precision focusing mechanism suitable for a large-breadth space camera, and relates to the technical field of space optical remote sensing, and the long-linear-array high-precision focusing mechanism comprises a force bearing structure which comprises a sliding seat and a base; the guide device is mounted between the sliding seat and the base; the transmission device is connected with the clearance eliminating nut; the driving device provides power for the transmission device and drives the clearance eliminating nut through the transmission device to push the sliding seat to do linear focusing motion along the guide device; and the position feedback device is used for detecting and feeding back the displacement of the sliding seat. The positioning precision and the shaking precision are fully considered in design, errors caused by nut assembly are absorbed through the floating switching hinge, and the shaking precision is improved; the guide rail pre-pressing device can improve the rigidity of the precise guide rail on the premise of not introducing extra disturbance, so that the sliding seat is ensured to shake around X; high-precision linear guide rail large-interval layout is adopted to ensure that the sliding seat shakes around Y, position feedback is conducted through a high-precision grating ruler, and the positioning precision is improved.

The invention discloses an efficient somatosensory interaction prop and a physical space calibration method thereof, and the calibration method comprises the steps: S1, obtaining the internal parameters of cameras, the external parameters between the cameras, and the external parameters between the cameras and a display; s2, collecting data in interaction prop movement; s3, calculating the three-dimensional coordinate position of the light-emitting point through the internal reference of the camera and the external reference between the camera and the display, and converting the three-dimensional coordinate position of the light-emitting point to a spatial position taking the center of the display as the center of a world coordinate system to obtain the spatial position of the light-emitting point in the world coordinate system of the display; s4, interpolating the attitude data of the cascade inertial sensor IMU into the three-dimensional coordinate data of the luminous point according to a second timestamp to obtain the attitude data of the cascade inertial sensor IMU after interpolation; and S5, constructing a nonlinear equation set, and solving the nonlinear equation set to obtain the initial position and the initial attitude of the interactive prop and the relative coordinates of the luminous point in the space.

The utility model discloses a dust collector automatic dust collection charging seat with a display screen, which can display the operation condition of equipment in real time and improve the visualization of the equipment through the design of the display screen, so that corresponding parts can be overhauled and adjusted in time, and the efficient and stable operation and the convenience of operation and use of the dust collection charging seat are ensured. The charging structure is provided with the charging frame with the clamping opening and the conical guide groove, the positioning stability during charging of the dust collector can be improved, the charging assembly avoids the problem of electric shock caused by mistaken touch of the conducting strip through the designed linkage piece and the micro switch at the corresponding position, and the use safety of the charging assembly is improved; and the top of the dust collection structure is laterally assembled and matched with a bottom positioning structure which is embedded, assembled and clamped with an upper positioning ring and a lower positioning ring, and an air outlet filter piece embedded assembly structure provided with a pull rod, so that the convenience of disassembly and assembly operation of the dust collection filter structure is improved. Compared with a common dust collection charging seat, the dust collection charging seat can achieve the functions of efficient dust collection, safe charging and convenient disassembly, assembly and maintenance.

The invention discloses an assembly type building stair mold, and relates to the technical field of stair molds, the assembly type building stair mold comprises a mold mechanism, the side face of the mold mechanism is provided with a transverse steel bar limiting mechanism, and the transverse steel bar limiting mechanism is used for limiting and fixing transverse steel bars in a prefabricated stair. According to the longitudinal reinforcement limiting mechanism, the height of a clamping head is accurately adjusted through a third mounting bolt, the clamping head can be flexibly selected according to the diameter of a longitudinal reinforcement, the mounting height and position of the longitudinal reinforcement can be accurately controlled, the overall positioning accuracy of a reinforcement framework is guaranteed, and then the mechanical property of the prefabricated stair is improved; the sleeve plays a role in protecting the end, inserted into the mold mechanism, of the third mounting bolt, it is avoided that concrete adhesion affects bolt disassembly, meanwhile, due to the detachable design of the third mounting bolt and the modular structure of the steel bar limiting mechanism, the demolding difficulty is lowered, damage to stairs after a component is formed is reduced, and the demolding efficiency and the finished product quality are improved.

The invention discloses a fusion positioning algorithm based on low earth orbit satellite Doppler measurement, DME and VOR, and relates to the technical field of satellite navigation, and the algorithm comprises the steps: obtaining Doppler frequency shift of a low earth orbit satellite, slant range information of the DME and azimuth angle data of the VOR, constructing a combined observation equation, and obtaining a corresponding Jacobian matrix; based on the geometric accuracy factor, channel and satellite selection is carried out through a genetic algorithm, DME, VOR and low-orbit satellites are optimized and selected, and an optimal navigation source combination is obtained; motion models in different flight modes are constructed, interactive multi-model Kalman filtering is utilized to dynamically estimate the state of the aircraft, and position information is updated in real time. Therefore, by the adoption of the method, real-time positioning of the aircraft under complex conditions is achieved, the anti-interference capability of the system is improved, and the overall positioning precision and stability of the system are improved.

The utility model discloses a reinforcing steel bar field detector which comprises a base, supporting plates are fixedly connected to the upper ends of the two sides of the base, a top plate is fixed to the upper ends of the supporting plates, installation grooves are formed in the side faces of the supporting plates, positioning blocks are arranged in the installation grooves, and pressure detection modules are installed at the lower ends of the installation grooves. A rotary disc is arranged at the lower end of the top plate, a positioning frame is fixed to the lower end of the rotary disc through bolts, and air cylinders penetrate through the two sides of the positioning frame. According to the reinforcing steel bar on-site detector, the anti-shearing force and the anti-compression force of a reinforcing steel bar can be independently detected by arranging two groups of independent detection structures, and the position switching of the two groups of detection structures can be completed by utilizing a turntable structure, so that the use convenience is improved; and the positioning reliability and stability of the reinforcing steel bar during detection can be improved.

The invention relates to the related technical field of mooring systems, in particular to an anti-rotation cross anchor which comprises a main anchor body, a connecting front wing plate, an anti-deflection rear wing plate and a reinforcing side plate, the main anchor body is of a plate body structure with the lower end section in an isosceles triangle shape, and the connecting front wing plate is connected with the front end face of the main anchor body in a welded mode; an anchor chain connecting hole is formed in the position, close to the side edge, of the connecting front wing plate; according to the anti-rotation cross-shaped anchor composed of the main anchor body, the connecting front wing plate, the anti-deflection rear wing plate and the reinforcing side plates, the main anchor body, the connecting front wing plate and the anti-deflection rear wing plate are arranged in a cross shape, and the reinforcing side plates are vertically arranged on the main anchor body, the connecting front wing plate and the anti-deflection rear wing plate; therefore, the ground gripping effect of the anchor body in seabed sludge is effectively improved, deflection of the anchor body can be effectively prevented, the stability of the floating type photovoltaic power station is effectively improved, and the device further has the advantages of being high in precision, low in manufacturing cost, simple in installation process and the like.

The invention discloses an indoor positioning method for constructing a fingerprint map based on multi-chain interpolation, and belongs to the technical field of wireless device positioning method research. The method comprises the following steps: sampling a sample target according to a sampling rule, and sampling to obtain a sampling point data set, wherein the sampling point data set comprises position coordinate information of the sampling point and an RSS value of the sampling point; inputting the sampling point data set into the system for constructing a fingerprint map based on multi-chain interpolation; the system for constructing a fingerprint map based on multi-chain interpolation performs internal processing to obtain a complete fingerprint map, wherein the complete fingerprint map comprises a sampling point data set and a data set of points to be inserted, wherein the data set of points to be inserted comprises position coordinate information of the points to be inserted and an RSS value of the points to be inserted; and obtaining the position coordinate information of the points to be detected through the complete fingerprint map and the RSS value of the points to be detected. Compared with a traditional indoor positioning method, the method of the invention improves positioning accuracy and stability.

The invention discloses an anti-falling assembly type building wallboard auxiliary mounting device, and belongs to the technical field of assembly type buildings. The anti-falling assembly type building wallboard auxiliary installation device comprises a support, a spiral cam is installed on the lower portion of the interior of the support, an auxiliary T-shaped sleeve is installed above the spiral cam, an assembly frame is installed above the auxiliary T-shaped sleeve, and a transmission arm is installed at the lower end of the assembly frame. The problems that an existing auxiliary mounting device is complex in structure, poor in position stability, difficult to fully detect the position of a wallboard and poor in anti-falling effect are solved, a synchronous motor is driven to drive a spiral cam to rotate, a limiting roller and a transmission arm are driven to move, constant-speed stepped ascending is carried out, and the anti-falling effect of the wallboard is improved. The position of the wallboard to be assembled is kept stable while the wallboard is close to the assembly position, the structure position is stable, and stable feeding work can be achieved through the synchronous motor.

The invention relates to the technical field of rotary table control, in particular to a high-precision rotary table intelligent control method and device based on improved ESO, and the method comprises the steps: constructing a mathematical model of a rotary table motor, and deriving a transfer function of the motor; respectively acquiring current and angle data of a turntable motor; building a turntable control system, wherein the three-axis turntable control system is composed of a current loop, a position loop and an ESO-based virtual control law; designing a virtual control law based on ESO; and superposing the designed ESO virtual control law output to the turntable current loop and position loop output, and embedding a control algorithm into a processing module of a turntable upper industrial personal computer to complete the intelligent control of the turntable. According to the method, a transfer function of a motor is established, a virtual control law based on improved ESO is designed on the basis of an extended state observation theory, cooperative control over the rotary table is achieved with PID control, and high-precision pointing of the rotary table is achieved.

The invention discloses a path planning method and system based on multi-modal joint integration, and the method employs an image processing and deep learning technology to automatically recognize and eliminate the influence of a dynamic object, and guarantees that SLAM and VIO systems are only matched with a stable static background object. According to the technical scheme, firstly, feature points in an input image are preliminarily screened and matched through the image feature point matching technology; and then introducing a deep learning network to carry out refined segmentation and instance identification. The deep learning network can accurately distinguish a static object from a dynamic object, and accurately identify the existence of the dynamic object in a complex scene. After the dynamic objects are identified, the dynamic objects are eliminated from the feature matching process by adopting an intelligent elimination strategy, so that the SLAM and VIO systems are ensured to perform feature matching and positioning calculation only based on stable static background objects, the negative influence of the dynamic objects on the positioning precision is avoided, and the stability and applicability of the system in a complex dynamic environment are improved.

The invention discloses external wall facade concrete timing curing equipment, and belongs to the technical field of concrete curing. An outer wall facade concrete timing curing device comprises a scaffold transverse pipe, a curing spraying pipe and two fixed pulleys, a hoisting steel cable is installed at the upper end of the curing spraying pipe, a fixed bottom plate is installed below the scaffold transverse pipe, and a winch is installed at the upper end of the fixed bottom plate. The problems that an existing spraying and curing device cannot adapt to concrete outer walls of different heights, the curing range is reduced, and adaptability is poor are solved, a hoisting steel cable is wound through a winch, a curing spraying pipe is driven to move, and in the moving process of the curing spraying pipe, the spraying effect is good. The two sides of the maintenance spraying pipe are kept stable through the balancing weight at the lower end of the maintenance spraying pipe, so that in the lifting process of the maintenance spraying pipe, the adjusting structure is simple, mounting and dismounting are convenient through cooperation of the scaffold transverse pipe and the fixed pulley, and concrete outer wall maintenance work at different positions is facilitated.

The invention provides an inertial positioning method and device, a robot and electronic equipment, and belongs to the technical field of navigation.The method comprises the steps that continuous sampling is conducted on a main IMU and an auxiliary IMU installed on target equipment; respectively carrying out smoothing processing on each IMU data stream in the sampled original data; respectively performing error compensation on each IMU data stream; performing time and space alignment on each IMU data stream; and based on the reliable data information, performing data fusion on the IMU data streams, and performing attitude calculation on a fusion result to obtain current position information. Therefore, the plurality of IMUs are installed at different positions of the carrier to capture the IMU data from different directions, and the current position information is solved by utilizing complementarity of the IMU data at different positions and through smoothing, alignment, correction and fusion processing, so that the offset error of the IMU at a single position is improved, and the positioning precision and stability are greatly improved.

The invention belongs to the technical field of pipeline defect marking, and particularly relates to a laser marker suitable for internal positioning of a pressure pipeline and a marking method of the laser marker. The device mainly comprises a laser lamp, the laser lamp is arranged on a laser lamp guide rail, a wireless control assembly is arranged on the laser lamp guide rail, and the laser lamp is connected with the wireless control assembly. The laser lamp is placed below the welding position of the pressure pipeline, and the laser lamp is controlled by the wireless control assembly to move along the laser lamp guide rail, so that the laser lamp can project all positions of a pipeline welding seam and record the initial position of a defect on the welding seam. Wherein the laser lamp can excite light rays with different colors according to different circumferential welds and longitudinal welds. According to the marker and the marking method, point location data are recorded in a laser projection mode, and the marker and the marking method have the advantages that data are accurate, multiple point locations are recorded, and recorded data are not affected by working conditions of the pressure steel pipe. And for the pressure steel pipe with the diameter of more than 3m, the working procedure of building a scaffold can be omitted.

The invention relates to the technical field of radio frequency, and discloses a radio frequency device and an assembling method, the radio frequency device comprises a base, a mounting shell is arranged above the base, and radio frequency equipment is mounted in the mounting shell; according to the radio frequency device, the radio frequency signal positioning function of the device can be optimized in the assembling process, the radio frequency signal RSSI can be well calibrated and corrected, the radio frequency device can keep high positioning performance when facing a complex and changeable signal environment, and the reliability of the radio frequency device is improved. The device can regularly and completely clean dust on all parts of the surface of the radio frequency device, so that the adverse effect of the dust on the performance of the radio frequency device is avoided, the communication quality and stability of the radio frequency device are improved, and the device further has a line combing function, can ensure that lines in the radio frequency device are arranged tidily and orderly, and improves the communication quality and stability of the radio frequency device. And the device also has a buffering function, so that when the radio frequency device vibrates, vibration energy can be absorbed and dispersed through damping and buffering treatment, and the service life of the device is prolonged.

The utility model provides a vehicle-mounted refrigerator. The vehicle-mounted refrigerator comprises a refrigerator body, a door body, a fan and a refrigeration assembly, and a refrigeration cavity and a first opening communicating with the refrigeration cavity are formed in the refrigerator body; the door body covers the first opening; the fan is arranged on one side, close to the refrigeration cavity, of the door body; the refrigerating assembly is installed on the box body and used for refrigerating the refrigerating cavity. The refrigeration uniformity and the refrigeration speed of the vehicle-mounted refrigerator can be improved.

The invention discloses a GNSS (Global Navigation Satellite System)-based substation inclination detection method and system. The method comprises the following steps of: selecting a base station mounting point in an area of a substation to be detected; determining a monitoring station installation point in the to-be-tested transformer substation; respectively establishing a base station and a monitoring station and installing GNSS equipment; the base station receives a satellite signal through GNSS equipment, obtains base station position data through calculation according to the satellite signal, and sends the base station position data to the monitoring station; the monitoring station receives the satellite signal through the GNSS equipment and carries out calculation according to the received satellite signal and the reference station position data to obtain the position data of the to-be-measured transformer substation; according to the obtained position data of the to-be-detected transformer substation, judging whether the to-be-detected transformer substation is deformed, and calculating displacement data when the to-be-detected transformer substation is deformed; fitting the displacement data by adopting a least square method and calculating the displacement data by adopting a second order gradient method, and judging whether the transformer substation is inclined or not; the method can provide reliability of transformer substation inclination detection.

The present application discloses a vibration reduction and noise reduction device for a fixed conical valve, which relates to the technical field of valves and is arranged on a fixed conical valve. The vibration reduction and noise reduction device includes a first air supply component and a plurality of second air supply components. An annular negative pressure zone is formed in the cavity on the side of the valve body close to the water outlet pipe; the first air supply component includes a plurality of air supply pipes, which are located on the outside of the guide cover, one end of which is fixedly connected to the peripheral side of the guide cover and communicated with the cavity, and can replenish gas to the position of the peripheral side of the valve body in the cavity; the second air supply component includes a plurality of air supply structures, one end of which passes through the water outlet pipe, passes through the interior of the water outlet pipe, is located in the negative pressure zone and communicates with the cavity. The present application can effectively weaken the cavitation phenomenon, thereby effectively reducing the impact of the cavitation phenomenon and reducing the vibration and noise caused by it.

This invention discloses an automatic dust collection and charging base for vacuum cleaners with a display screen. The display screen allows for real-time monitoring of the device's operation, enhancing visibility and facilitating timely component inspection and adjustment. This ensures efficient and stable operation and ease of use. The charging structure features a charging rack with a clamp and conical guide groove, improving positioning stability during charging. Designed linkages and micro-switches in the charging components prevent accidental contact with conductive plates, enhancing safety. The dust collection structure includes a bottom positioning structure with upper and lower positioning rings that engage and lock together, and an embedded exhaust filter with a pull rod, improving ease of assembly and disassembly. Compared to common dust collection and charging bases, this design achieves efficient dust collection, safe charging, and convenient assembly and maintenance.

This invention discloses a lesion localization method and system based on deep learning, comprising: acquiring medical image data; preprocessing the images to obtain standardized data; inputting the standardized data into an improved nnFormer to construct a potential lesion morphological field; fusing the morphological field and image data to generate a multi-source lesion mechanism parameter field; segmenting the lesion occurrence mechanism parameter field, establishing evolution paths, and inversely reasoning about boundary regions; calculating topological and physiological characteristics, and jointly assessing the final lesion region using energy; and outputting the lesion localization result, including spatial location and regional extent. This invention achieves stable and accurate localization of lesion regions in medical images by constructing a potential lesion morphological field from standardized medical images using an improved nnFormer, and by fusing multi-source mechanism parameter fields, morphological evolution inverse reasoning, and topological-physiological joint energy assessment.

The utility model discloses a cleaning mechanism of a dispensing nozzle, which comprises a bottom base plate, an unwinding rotating shaft and a winding rotating shaft, a cloth roll is sleeved on the unwinding rotating shaft, an adhesive tape wiping section is formed between a new cloth roll section on the unwinding rotating shaft and a waste cloth roll section wound on the winding rotating shaft, one end of the unwinding rotating shaft is fixedly arranged on a first vertical plate, and the other end of the unwinding rotating shaft is fixedly arranged on a second vertical plate. The outer side of the unwinding rotating shaft is sleeved with a first rotating disc and a first blocking disc located on the side, opposite to the first vertical plate, of the first rotating disc, the other end of the unwinding rotating shaft is provided with a first nut, and a spring in an extrusion state is arranged on the outer side of the unwinding rotating shaft in a sleeving mode and located between the first nut and the first blocking disc. A base plate is installed on the side, facing the first rotating disc, of the first vertical plate. According to the utility model, the rotation of the cloth roll can be prevented, the friction resistance on the rotating disc can be improved, the unnecessary rotation of the rotating disc caused by the stress in the process is avoided, and the position precision and stability of the rubberized fabric section are improved, so that the rubberizing stability is improved.