18results about How to "Flexible transformation" patented technology

The invention discloses a dual-mode communication system performance test method based on a single-chip microcomputer. The method comprises the following steps: S1, building a test system; step S2, test setting; step S3, evaluation standard setting; s4, comparing by setting a data table; and S5, analyzing an evaluation result in the step S4. Through the scientific and comprehensive evaluation method, performance evaluation of multiple communication modes can be supported, and the requirements of different application scenes are met. In the aspect of evaluation, multiple indexes are set, channel switching is considered, and comprehensive evaluation of the system performance is achieved; in the aspect of practice, a real communication environment is simulated, result operation is carried out in one step by using software, and then the transmission process of dual-mode communication is simulated in a laboratory, so that the accuracy and reliability of an evaluation result are improved. The stability, reliability and efficiency of the dual-mode communication system are accurately reflected, and a basis is provided for further optimization and improvement of the system.

The utility model discloses a mixed power control device of telescopic boom crawler crane, include: engine, clutch, motor, integration unit, control unit, battery system, direct current charging mouth and mains interface, hydraulic pump, integration unit includes OBC, PDU, AC DC rectifier module and DC DC conversion module, and battery system is integratively equipped with BMS module, TMS module, and direct current charging mouth and mains interface are electrically connected with battery system and integration unit respectively through central swivel joint, and control unit can acquire charging interface state, battery capacity, clutch pressure and load power in real time, and according to the automatic switching engine mode and motor mode of working condition, through the pressure value of closed loop control hydraulic clutch dynamic adjustment between setting connection point and disconnection point, be applicable to various complex working conditions, through control unit real -time detection and transmission signal control, guarantee that vehicle has sufficient power performance. The utility model is simple to operate, and quick and stable, and the energy utilization rate is high, safe, environmental protection.

The invention provides a YOLOv11-based underwater fishing net detection method and device, and the method comprises the steps: carrying out the feature extraction of an inputted to-be-detected underwater image through a trunk feature extraction network in an improved YOLOv11 detection model, obtaining an initial feature map, and employing a MobileNetV2 network as the trunk feature extraction network; multi-scale feature fusion is carried out on the initial feature map through a neck network in the detection model, a fused feature map is obtained, and the neck network adopts a Slim-Neck structure; performing fishing net detection on the fusion feature map through a detection head network in the detection model to obtain a detection result of a fishing net target; and the detection head network adopts a GSConv module, a GSBottleneck bottleneck layer and a VoV-GSCSP module, so that the reasoning speed and the detection efficiency of the model are improved, the integration capability of the model for different-scale fishing net features is enhanced, the robustness of the model in a complex underwater scene is improved, and relatively high detection precision is maintained on the premise of improving the efficiency.

The utility model provides a portable computer fixing work table, which comprises a table body and a frame plate, the frame plate is rotatably arranged on a table top on one side of the table body, a plurality of groups of positioning support blocks are arranged on one side of the frame plate far away from the table body, and at least part of the positioning support blocks are provided with positioning mechanisms. A first quick-release locking mechanism is arranged on at least part of the positioning supporting blocks, and the first quick-release locking mechanism is used for realizing quick locking and unlocking between the frame plate and the portable computer; a second quick-release locking mechanism is arranged on the frame plate, and is used for realizing quick locking and unlocking between the frame plate and the table body; a circular torque hinge is arranged between the frame plate and the table body, a fixed part of the circular torque hinge is fixedly connected with the table body, and a rotating part of the circular torque hinge is fixedly connected with the frame plate. The portable computer workbench can solve the problem that a portable computer is inconvenient to move on a workbench in the prior art.

The application discloses a seismic data storage method, a reading method, a storage device and a reading device, wherein the storage method comprises the following steps: determining a precision mode used for storing seismic data according to user demand; determining metadata used for describing the seismic data according to the precision mode; wherein the metadata comprises a global scale factor, a precision level factor, a sampling point number factor and a data format factor; determining a storage format of the seismic data according to the precision mode; wherein the number of bits occupied by the mantissa of the storage format corresponding to each precision mode is different; writing the metadata into the header of a seismic data file; and writing the seismic data into a seismic trace set of the seismic data file according to the storage format. The storage method can not only reduce the consumption of storage space, but also ensure the integrity and accuracy of the seismic data within the precision requirement range.

The invention provides a rhodotorula mucilaginosa multi-copy plasmid, rhodotorula mucilaginosa transformation, a target gene efficient overexpression rhodotorula mucilaginosa strain and a construction method thereof, and relates to the technical field of gene engineering. The construction method of the plasmid comprises the following steps: screening out genetics mycin as a resistance marker of wild rhodotorula mucilaginosa; carrying out amplification by taking the plasmid YEp352 as a template and P1-F / R as a primer to obtain a linearized plasmid fragment; the method comprises the following steps: amplifying by taking a DNA (Deoxyribonucleic Acid) sequence of a heredity mycin resistance expression box with a homologous arm as a template and G1-F / R as a primer to obtain a target gene segment with a homologous sequence; and assembling the linearized plasmid fragment and a target gene fragment with a homologous sequence, transforming into an escherichia coli competent cell, and finally identifying a positive bacterial colony. The multi-copy plasmid provided by the invention has multiple cloning sites and selective markers, so that genome modification in rhodotorula mucilaginosa is more flexible and convenient, and a target gene can be stably and efficiently expressed.

The utility model discloses a household bedroom sundry storage cabinet, which relates to the technical field of storage furniture and comprises a storage area, a common use area and a display area, the display area is fixedly mounted on the upper surface of the common use area, two rows of through holes are formed in the back of the display area, a partition plate is inserted in the display area, and fixing clamps are mounted on two sides of the front of the display area; a first sliding groove and a second sliding groove which are parallel are formed in the two inner side walls of the common use area, a first storage box is installed in the first sliding groove in a sliding mode, and a second storage box is installed in the second sliding groove in a sliding mode. The display area, the partition plates, the fixing frames and the fastening bolts are arranged in a matched mode, the height of the partition plates in the display area can be flexibly changed, the display cabinet is suitable for display products of various heights, practicability is improved, and the application range is widened; through cooperative arrangement of the common use area, the hinge, the cover plate, the first storage box, the second storage box and the gear, the position of the first storage box is adjusted to obtain a hidden second storage box, and the concealment of articles in the second storage box is guaranteed while the articles are convenient to take and use.

The invention discloses a protein-chitosan oligosaccharide-stabilized Pickering emulsion and a preparation method thereof, and belongs to the technical field of Pickering emulsion preparation. The preparation method of a protein-chitosan oligosaccharide-stabilized Pickering emulsion described in the present invention specifically comprises the following steps: firstly constructing protein-chitosan oligosaccharide composite nanoparticles by a thermally induced self-assembly method, then loading a fat-soluble active substance to obtain an aqueous nanoparticle suspension, and finally adding an oil phase or plant essential oil containing a fat-soluble active substance to the aqueous nanoparticle suspension, and preparing the Pickering emulsion by a high-energy emulsification method. The present invention enables the Pickering emulsion to achieve the purpose of high load or multi-function by adding the same or different active substances to the aqueous phase and the oil phase respectively.

The utility model discloses a dual-purpose chair, which relates to the field of chairs, and has the technical key points that the dual-purpose chair comprises a top frame and a movable plate, a plurality of supporting cylinders are arranged at the bottom of the top frame, a movable cavity is formed in the top frame, rotating shafts are arranged on two sides of the movable plate, and the rotating shafts are arranged in the movable cavity. The rotating shafts on the two sides of the movable plate are rotationally matched with the two sides of the movable cavity, a table body face is arranged on one face of the movable plate, a cushion face is arranged on the other face of the movable plate, a cushion body is arranged on one side of the cushion face, movable grooves are formed in the two sides of the top frame, the movable grooves are communicated with the movable cavity, and the movable cavity is communicated with the movable plate. A movable groove is formed in the table and the chair, a movable rod is slidably connected into the movable groove, a movable seat is arranged at one end of the movable rod, two clamping plates are arranged on one side of the movable seat, and the two clamping plates are spaced to form a clamping interval. And the technical problem of inconvenience in placement is solved.

This utility model discloses a surveying and setting-out device for construction engineering, including a surveying and setting-out box. The box is equipped with a setting-out assembly, which includes a winding shaft and a connecting plate. One end of the measuring line is wound around the winding shaft, and the other end is fixed to the connecting plate. The winding shaft is vertically rotatable and installed inside the surveying and setting-out box, with its upper end extending upwards above the top of the box. The connecting plate is slidably positioned in an installation opening on the rear side of the box, with its rear end extending beyond the box and fixedly connected to a counterweight bracket. The counterweight bracket has multiple downward-extending fixing pins at its bottom. The surveying and setting-out box is a movable box, and a portable component is provided on its top, allowing the box to be pulled forward or lifted upwards. The advantages of this utility model are: ensuring portability, facilitating the fixing of the measuring end, and facilitating the winding of the measuring line, thus ensuring measurement effectiveness.

The invention provides a resistance reduction device for a vehicle, a control method and the vehicle. The resistance reduction device comprises a spoiler assembly, the spoiler assembly is located at the tail of the compartment, one part of the spoiler assembly is movably connected with the top of the compartment, another part of the spoiler assembly is movably connected with the side face of the compartment, and the other part of the spoiler assembly is movably connected with the bottom of the compartment; one end of the control assembly is connected with the compartment, the other end of the control assembly is connected with the spoiler assembly in a telescopic mode, and the control assembly is used for controlling the spoiler assembly to form different opening angles relative to the compartment, so that the spoiler assembly has multiple working positions. The problem that in the prior art, the angle of a tail spoiler of a van truck and a van semitrailer cannot be automatically adjusted to achieve the optimal drag reduction effect is solved.

The injection chair comprises a chair seat, a chair back, armrests, a multifunctional table and chair and the like, the chair back is rotationally connected with the chair seat through a backrest adjusting mechanism, the angle of the backrest can be freely adjusted according to the requirements of a patient, and the discomfort of the patient in the treatment process is relieved. The multifunctional table and chair integrates the functions of writing, article placing, arm supporting, accompanying diagnosis personnel sitting and the like, the table top and the chair surface can be flexibly adjusted through the positioning adjusting mechanism, and the requirements of different patients and medical care scenes are met. A cup groove is formed in the front end of the first armrest and used for storing a water cup, the second armrest is provided with a storage groove and a bandage, the storage groove is used for storing personal articles of a patient or medical tools and medicaments of medical staff, the bandage is used for fixing arms of the patient, and stability and convenience of injection operation are improved. The infusion support is reasonable in structural design and can be widely applied to outpatient injection and infusion treatment scenes, and the treatment comfort of patients and the working efficiency of medical staff are remarkably improved.

This invention discloses a concealed ceiling-mounted clothes drying system that can move along a circular track, including a ceiling, a main unit, and a drying rod assembly. A circular track is laid within the inner space of the ceiling, and a circular groove is formed in the ceiling below it. The main unit includes a first moving main unit, a lifting main unit, and a second moving main unit. The first moving main unit is hinged to the lifting main unit, and the lifting main unit is hinged to the second moving main unit; all three can rotate and move along the circular track. A wire rope winding and unwinding device is installed inside the lifting main unit, and two wire ropes extending from it enter horizontally into the first moving main unit and the second wire rope respectively, and pass vertically downwards through the circular groove to connect to one end of the drying rod assembly. The drying rod assembly is composed of multiple drying rod units that are hinged sequentially front to back, and can rotate and move synchronously with the main unit. It can also rise into the circular groove under the traction of the wire ropes. Its advantages are that it enables the ceiling-mounted clothes drying system to rotate and move cyclically, flexibly changing the hanging position of the clothes, and can be completely concealed.

This invention relates to a reconfigurable underwater 3D laser scanning system and method, belonging to the field of underwater robot underwater environment 3D scanning technology. It solves the problems of non-reconfigurable underwater laser scanning systems, such as fixed structure, inability to change the scanning beam and form according to actual needs, leading to sparse point cloud data, insufficient information acquisition, slow scanning speed, and small detection range. The system includes an underwater camera module, a laser emitter module, a parallel circuit module, and a data processing center module unit. The laser emitter module is electrically connected to the parallel circuit module, and the underwater camera module, parallel circuit module, and data processing center module unit are electrically connected. This invention allows for the addition of underwater camera modules and laser emitter modules according to the needs of the underwater robot, expanding the scanning range and increasing the field of view. It has advantages such as simple structure, flexible scanning mode, dense point cloud data, and accurate imaging.

The utility model discloses an electrostatic spinning device for preparing nanofibers. The electrostatic spinning device comprises a motor; the spinning nozzle is connected with a power supply so as to generate an electric field which is uniformly distributed on the surface, the spinning nozzle is used for spraying a spinning solution so as to form nanofibers, and the spinning nozzle is connected to the motor so as to be driven by the motor to rotate; the curved tops of the two curved-top cylinders are oppositely arranged, and the two curved-top cylinders are used for generating a magnetic field; the spherical magnet receiving device is arranged between the two curved-top cylinders, suspends and rotates under the action of a magnetic field, and is used for receiving nanofibers; the electromagnets are arranged on the two opposite sides of the spherical magnet receiving device, and the magnetic field directions of the electromagnets are opposite; a magnetic field formed by the electromagnet acts on the nanofibers to enable the nanofibers to be in a certain orientation, and the spherical magnet receiving device can change the orientation of the nanofibers through rotation. According to the utility model, the spinning fibers can be highly oriented under the action of magnetic field force.

The invention discloses an LCD (Liquid Crystal Display) pixel driving circuit based on a double-gate transistor, which comprises a first transistor, a pre-storage capacitor, a first double-gate transistor, a second double-gate transistor and a liquid crystal capacitor, and is characterized in that a first source drain electrode of the first transistor is coupled to a data signal line, and a gate electrode is coupled to a control signal line; the second source and drain electrode is coupled to the first grid electrode of the first bigrid transistor and one end of the pre-storage capacitor, and the second source and drain electrode is coupled to the first grid electrode of the second bigrid transistor through the control electrode; one end, far away from the second source-drain electrode of the first transistor, of the pre-storage capacitor is coupled to a second global signal line; a first source drain electrode of the first bigrid transistor is coupled to the first global signal line, a second source drain electrode is coupled to the liquid crystal capacitor through the pixel electrode, and a second grid electrode is coupled to the second global signal line; a first source drain electrode of the second bigrid transistor is coupled to the first global signal line, a second source drain electrode is coupled to the liquid crystal capacitor, and a second grid electrode is coupled to the second global signal line.

The embodiment of the invention discloses a coding method, a decoding method, a coder, a decoder and a storage medium, and the method comprises the steps: determining a prediction parameter of a current block, and the prediction parameter comprises a prediction mode parameter; when the prediction mode parameter indicates that an intra-frame prediction value is determined by using a matrix-based intra-frame prediction MIP mode for a chrominance component of the current block, obtaining an adjacent sampling value of the current block, and determining an MIP input sampling value of the current block according to the adjacent sampling value of the current block; determining an MIP predicted value of the chrominance component of the current block according to the MIP input sampling value, the MIP weighting matrix and the shift parameter; performing filtering processing on the MIP prediction value, and determining an intra-frame prediction value of a chrominance component of the current block; determining a prediction residual value of the chrominance component of the current block according to the intra-frame prediction value of the chrominance component of the current block; performing low-frequency inseparable secondary transformation (LFNST) on the prediction residual value, and determining an LFNST parameter; and encoding the LFNST parameter, and writing the LFNST parameter into a code stream.