39results about How to "Convenient teaching" patented technology

The invention discloses a method and a device for automatically generating a stroke drawing by using a sketch. The method comprises the following steps of: firstly, training a real image stroke information prediction module Transform-S module and a stroke global information and sketch information fusion module Transform-M module in a model; inputting the sketch into a pre-trained real image generation model Maskit to obtain a real image, obtaining image features of the real image corresponding to the sketch through an image encoder, obtaining canvas features of the blank canvas through the image encoder, and fusing the two features in a channel dimension to obtain fused image features; meanwhile, the sketch is input into a sketch encoder to obtain corresponding sketch space features; the fused image features are input into an encoder of the trained Transform-S module, and further fused image features are obtained; then, the fused image features are input into a decoder of a Transform-S module, and stroke information features are obtained; the stroke information features and the sketch space features are connected together and input into a trained Transform-M module, the stroke information features fused with sketch space information are obtained, parameters of strokes are obtained through a full connection layer, the strokes are obtained through rendering of the stroke parameters, and the drawing based on the stroke style is generated through superposition of the multiple strokes.

This invention discloses a multi-layered tooth with a carious pulp chamber and its fabrication method. The method involves sequentially molding a simulated dentin crown with an upper pulp chamber, a simulated enamel with a caries-receiving groove covering the outer side of the simulated dentin crown, and a simulated caries portion within the caries-receiving groove through multiple in-mold injection molding processes. A simulated dentin root with a lower pulp chamber and simulated root canals is then formed by injection molding or 3D printing. The inner walls of the upper and lower pulp chambers and the simulated root canals are coated with simulated pulp dye. The simulated pulp is then placed into the lower pulp chamber and the simulated root canal. The simulated crown is then fixed to the upper end of the simulated dentin root by bonding or welding to form the simulated tooth. This invention's simulated tooth has a caries-like structure and reproduces the anatomical morphology of a real tooth, which helps improve students' clinical experience during practical training. The highly realistic tooth model of this invention can be used to explain different course content, improving teachers' teaching efficiency.

The utility model provides a teaching model for simulating patent foramen ovale, which comprises an atrium module, a partition module, a base, a magnet sheet and a metal sheet, and is characterized in that the atrium module is arranged on the base and comprises a left atrium and a right atrium, and the upper part of the left atrium is connected with pulmonary veins; the upper part of the right atrium is connected with superior vena cava, and the lower part of the right atrium is connected with inferior vena cava; the partition module is used for separating the left atrium and the right atrium; the septum module comprises a secondary septum connected with the right atrium and a primary septum connected with the left atrium, the rear side of the primary septum is connected with the rear side of the secondary septum, a first groove is formed in the outer surface of the front side of the secondary septum, the magnet sheet is arranged in the first groove, a second groove is formed in the outer surface of the front side of the primary septum, and the metal sheet is arranged in the second groove. The magnet sheet and the metal sheet attract each other; and an oval hole for communicating the left atrium with the right atrium is formed between the primary septum and the secondary septum. The patent foramen ovale teaching aid enables teaching of patent foramen ovale diseases to be more convenient.

The present invention provides a teaching system for a discrete phase coded quantum key distribution protocol based on an optical chip. The encoding and decoding ends of the teaching system are both manufactured based on the optical chip. The entire system has the advantages of low cost, modularization, and convenient teaching. It makes up for the problem that the existing commercial quantum key distribution system cannot be used for physics teaching in colleges and universities as well as junior and senior high schools due to its high cost and large size.

The utility model discloses an experimental device for simulating interaction of underground water and surface water. The device comprises a transparent box body, and a first water-permeable partition plate and a second water-permeable partition plate which are arranged in the transparent box body, and the first water-permeable partition plate and the second water-permeable partition plate are arranged in parallel and sequentially divide an inner cavity of the transparent box body into a first space, a second space and a third space; the other end of the horizontal interaction conduit is communicated with the third space, and a peristaltic pump is arranged on the horizontal interaction conduit; an undercurrent exchange conduit is arranged outside the bottom of the transparent box body, one end of the undercurrent exchange conduit is inserted from the bottom of the first space, and the other end extends upwards from the outside of the bottom of the transparent box body and is inserted from the side wall of the third space. According to the utility model, the horizontal interaction and undercurrent exchange process of the surface water and the underground water can be really simulated under the driving of the peristaltic pump, an intuitive display effect can be achieved, entity equipment is provided for science popularization work of interaction of the underground water and the surface water, teaching and research and development are facilitated, and teaching aids for teaching and research use are met.

The application belongs to the field of physical optical measurement, and particularly relates to a double-slit interference experiment device. The device comprises an optical platform, a first sheet element, a second sheet element, a first clamping groove, a second clamping groove and a micrometer. The first sheet element comprises spaced light-transmitting areas and non-light-transmitting areas. The second sheet element comprises spaced non-light-transmitting areas and light-transmitting areas. The two sheet elements are close to each other and are fixed on the first clamping groove and the second clamping groove respectively. The first clamping groove is fixed on the platform. The micrometer comprises a micrometer screw, a knob and a scale and is fixed on the platform. The end of the micrometer screw is connected with the end of the second clamping groove close to the fourth non-light-transmitting area. When the knob is rotated, the micrometer screw drives the second clamping groove to move along the axis of the micrometer screw. The light-transmitting areas and the non-light-transmitting areas of the two sheet elements are staggered to form a double slit. Compared with the prior art, the application has the advantages that the precise adjustment of the width of a single slit and the distance between double slits can be realized simultaneously, and the occurrence of the phenomenon of missing steps can be effectively avoided.

The utility model discloses a suspension type multimedia platform for teaching, and relates to the technical field of multimedia platforms. The platform comprises a mounting frame, a platform body is arranged below the mounting frame, scissor connecting rods are arranged between the two sides of the mounting frame and the platform body, one sides of the tops and the bottoms of the scissor connecting rods are rotationally connected with the mounting frame and the platform body respectively, and the other ends of the tops and the bottoms of the scissor connecting rods are fixedly connected with limiting columns. Limiting grooves are formed in the two sides of the mounting frame and the platform body; according to the multi-media platform, through cooperation of a first air cylinder, a limiting column and a limiting groove, the scissor connecting rod is unfolded, meanwhile, the platform body is pushed to move downwards, the platform body is lowered to a proper position, teaching operation is facilitated, and when the multi-media platform is not used, the scissor connecting rod is stored through contraction of a piston rod of the first air cylinder in a similar way; therefore, the platform body is stored flexibly and conveniently, and the space utilization rate is further reduced.

The invention relates to the technical field of VR teaching, and discloses a teaching method and system based on a VR technology, and the method comprises the steps: constructing a basic virtual construction scene, setting a mode selection attribute, constructing a high-order virtual construction scene, constructing a VR teaching environment, operating the VR teaching environment, and executing a corresponding teaching task. The system corresponds to the method. According to the invention, a vivid training environment is provided for students to carry out practical operation training through the basic virtual construction scene, the applicability of teaching training is improved through multi-mode selection, and the pertinence of teaching training is improved through the special training mode and the high-order virtual construction scene. Closed-loop management of training and assessment is achieved through the teacher assessment plug-in, the training effect of students is improved, applicability and pertinence of teaching training to cooperative training are improved by setting role attributes of multiple persons, and finally combination of theoretical teaching and actual work is achieved. Under the condition of not being limited by the practical training environment area and equipment, students can carry out practical training conveniently and are closely connected with enterprise requirements, and the teaching process based on the VR technology is optimized.

The invention discloses an intelligent model storage table which comprises a table body, a plurality of peripheral storage cabinets are arranged on the peripheral side of the table body, peripheral cabinet doors in one-to-one correspondence with the peripheral storage cabinets are slidably mounted on the peripheral side of the table body, and each peripheral cabinet door is driven by a cabinet door driving device to open the corresponding peripheral storage cabinet. At least one middle storage cabinet is installed in the middle of the table body in a lifting mode, the middle storage cabinet is driven by a lifting power device to ascend and descend between the highest position and the lowest position, and when the middle storage cabinet is located at the highest position, the storage space is higher than the table top of the table body. When the middle storage cabinet is located at the lowest position, the storage area is lower than the table top. The storage table can be directly placed in a teaching classroom, the human body teaching models can be better stored, and storing and taking during teaching are facilitated.

The utility model provides a kind of GYK maintenance teaching and practical training integration device, including operation platform and cabinet, and each set of locomotive signal machine is equipped in the both ends of operation platform top;Computer is equipped in operation platform top middle;There is a travelling crane computer and two sets of man-machine interactive system in the embedded mode on operation platform;There is large and small brake and controller on the tabletop of operation platform;Power supply plug-in box is equipped in cabinet top, GMS equipment is equipped in cabinet middle part, GYK host computer is equipped below GMS equipment, fault simulation plug-in box and signal simulation plug-in box are equipped below GYK host computer;Wiring terminal row is equipped in the back of cabinet;The connecting cable between each equipment all passes through wiring terminal row and fault simulation plug-in box;Computer and fault simulation plug-in box communication control wiring terminal row inside different cable signal carry out on-off, simulate common fault phenomenon.

The application provides a complementary embedding image encryption method based on an improved cross-coupled mapping lattice, which comprises the following steps: establishing an improved sine cross-coupled mapping lattice model; based on a plaintext image, generating a secret key by SHA-384 and an original image, and calculating model parameters and initial values according to the secret key; detecting the plaintext image, identifying and obtaining airport coordinates, randomly selecting a coordinate point, and obtaining a visual confusion image through a complementary embedding algorithm; iterating the established sine cross-coupled mapping lattice model to obtain a matrix, converting the matrix into a one-bit array, taking the last rxc data to obtain b; distributing an initial matrix and iterating to an appropriate size to obtain a fractal disorder matrix; selecting the first r rows and the first c columns to form a one-dimensional array, sorting the one-dimensional array to obtain an index array; performing synchronous dynamic scrambling and diffusion operations on three channels R, G and B in a color image respectively to obtain a sub-encrypted image corresponding to each channel. The sub-encrypted images are assembled into a final encrypted image C.

The invention provides a combined paddle board and a combination method, solves the technical problems that for a beginner, the paddle board is not easy to control, the balance force is not easy to maintain, the paddle board is located in a deep water area when entering water, a teacher is not easy to give lessons on site, and the beginner is also easy to have dangers, and can be widely applied to the field of surfing paddle boards. The main board is composed of a head part, a driving part and a tail part; the head part is triangular, the driving part and the tail part are rectangular, the bottom edge of the triangle is as long as the narrow edge of the rectangle and is connected with the narrow edge of the rectangle, and a splicing assembly is arranged on the side surface of the main plate and is used for splicing different paddle boards in a coplanar manner to form a whole; the splicing assembly is a magnet, the magnetic attraction face of the magnet is parallel to the side face of the main board, the S pole and the N pole of the magnetic attraction face of the magnet face outwards, and different paddle boards are spliced through magnetic attraction force between different magnetic poles.

The invention provides an accurate calligraphy copying practice device, and belongs to the technical field of calligraphy copying practice devices. The device for precise calligraphy copying practice comprises an assembling frame and a fixing table, a hydraulic rod is arranged in the assembling frame, a mounting plate is fixed to the bottom of the hydraulic rod, a fixing plate is rotatably arranged at the bottom of the mounting plate, a limiting frame is arranged on one side of the fixing plate, and a force sensing pen is arranged in the limiting frame. Through mutual cooperation of the mounting frame, the placement plate, the hydraulic rod, the force sensing pen, the PLC, the force sensing pen and the writing simulator, the force sensing pen is used for calligraphy practice, at the moment, the PLC can record the angle of the force sensing pen, the force sensing pen can record the writing force, a student practices calligraphy copying, and after the practice, the writing simulator can record the writing force of the force sensing pen. And the writing simulator can score the students, so that the students can personally experience writing techniques of calligraphy, and practical teaching of educators is facilitated.

The utility model discloses a practical training platform robot clamp quick change structure, relates to the teaching equipment field, and comprises a six-axis robot and a clamp assembly, the tail end of the six-axis robot is detachably connected with a connecting piece A through a bolt, the bottom surface of the connecting piece A is connected with an electromagnet through a bolt, and the bottom surface of the connecting piece A is provided with a bolt. The front end of the clamp assembly is connected with a connecting piece B through a bolt, and the connecting piece B is made of metal iron materials. The connecting piece A and the connecting piece B are arranged at the joint of the six-axis robot and the clamp assembly for connection, the electromagnet additionally arranged at the bottom of the connecting piece A is used for electrifying, adsorbing and fixing the connecting piece B made of metal iron, traditional bolt connection is replaced, the convenience of mounting and dismounting of the clamp assembly is greatly improved, and the service life of the clamp assembly is prolonged. Time and labor are saved, and convenience is brought to teaching.

The utility model discloses an integral practical training platform for pastry processing teaching, which comprises a support and an operation table, a baking box and a vertical frame are sequentially arranged on the front side of the operation table, a plurality of laminates are arranged on the vertical frame at intervals up and down, a water tank and an operation plate are sequentially arranged on the front side of the operation table, and a faucet is arranged on one side of the water tank. A plurality of fermentation mechanisms are arranged on one side of the operation plate, each fermentation mechanism comprises a sealing plate and a fermentation tank, the sealing plate is hinged to an opening in the operation table, the side wall of each fermentation tank is of a cavity structure, and a heating element is arranged in each cavity. In conclusion, the practical training device has the advantages of being diversified in function, capable of improving teaching efficiency and good in practical training effect.

This invention discloses a remote online teaching method and system based on internet education, including a teaching server, a student terminal, and a teacher terminal. This remote online teaching system leverages the multi-channel transmission characteristics of the internet, dividing a single class into multiple learning groups. Each learning group shares a communication channel, allowing for multi-channel communication with the instructor. This effectively reduces communication congestion, resulting in more stable and efficient video transmission. Group members can communicate with each other, facilitating peer interaction. Instructors can individually enter each learning group during communication sessions to provide guidance. The system incorporates an evaluation unit, allowing for peer evaluation between instructors and students, monitoring and regulating student learning behavior. The system collects evaluations through multiple channels and at multiple levels, providing a comprehensive assessment that promotes better teacher-student communication and improves teaching quality.

The invention discloses an online education management system based on a big data cloud platform, which comprises a system architecture and a function module constructed based on the big data cloud platform, and is characterized in that the system architecture comprises an infrastructure layer, a data acquisition layer, a data storage and management layer and a data analysis layer. According to the online education management system based on the big data cloud platform, through deep analysis of individual data of students, a learning scheme is customized for each student to achieve the purpose of personalized learning, the learning effect and the learning enthusiasm are improved, comprehensive data insight is provided for education institutions and teachers, and the education efficiency is improved. Based on intelligent management and analysis of teaching resources, accurate pushing and efficient utilization of the resources are achieved, resource waste is reduced, and by means of the advantages of the big data cloud platform, the system can easily cope with concurrent access of a large number of users, and the system is more intelligent. And functions and resources can be flexibly expanded according to service development requirements.

The invention discloses a virtual classroom teaching implementation method and system based on coherent mapping three-dimensional shape estimation, a medium and equipment, and the method comprises the steps: S1, modeling and recording: constructing a virtual classroom model and a teacher-student 3D model through combining U-V transformation and a coherent mapping geometric generation model, and recording the modeling information in a virtual classroom management workstation in advance; s2, logging in: acquiring and inputting 2D images of teachers and students by using a camera; s3, identification: identifying a teacher-student 3D model according to the teacher-student 2D image based on a DensePose algorithm and a coherent mapping geometric generation model; and S4, authentication: establishing an authentication model based on the teacher-student 3D model, performing authentication information interaction on the teacher-student 3D model in the step S3 and the modeling information according to a preset authentication protocol, and when the authentication succeeds, adding the corresponding teacher-student 3D model to the virtual classroom model, which indicates that the system login succeeds. According to the invention, a more flexible and vivid teaching process can be realized, and better offline teaching and learning experience can be provided.

The invention discloses a trackside equipment practical training system of an urban rail. Relates to the technical field of train detection training. The console is used for directly sending a control instruction to the simulation workbench; the simulation workbench is used for calling a corresponding action model to perform action simulation according to the control instruction; the simulation workbench comprises a plurality of action models; the simulation workbench is also used for sending the action simulation process data to the practical training workbench; and the practical training workbench is used for remotely sending a control instruction to the simulation workbench and is also used for displaying the action simulation process data. A plurality of action models are integrated on the simulation workbench, analog simulation of different detections is realized, control and result display of the simulation workbench are realized in combination with the console and the training workbench, convenience is provided for a teaching process, visual simulation is performed on a train detection process, and the training efficiency is improved. And a worker can conveniently complete in-depth understanding of a system detection principle and a specific use method in a short time.

A prefabricated building component curing kiln teaching device comprises a rack, door sets, fluency strips and a detection switch, the teaching device is provided with four curing positions, the curing positions are divided into an upper layer and a lower layer in the rack, each layer is provided with a left curing position and a right curing position, and an entrance and an exit of each curing position are correspondingly provided with the door sets capable of opening and closing the rack in an up-down sliding mode. Each maintenance station comprises a mold table, a fluent strip and a detection switch, the mold tables are used for placing building components, each mold table is supported by two parallel fluent strips installed in the rack and can enter and exit from the teaching device along the fluent strips, and the detection switches are used for detecting whether the mold tables are in place or not; the plane where the entrance of the maintenance position is located is the front of the rack.

The present invention relates to the field of image processing, and discloses an intelligent image processing method and system for acute cerebral hemorrhage CT images. The processing method comprises the following steps: S1: database storage, obtaining original CT image data of acute cerebral hemorrhage in a mobile operating room; S2: data resolution enhancement, to obtain CT images with enhanced resolution; S3: neural network image segmentation, for performing neural network-based image segmentation on CT images with enhanced resolution; S4: reconstruction, for reconstructing the segmented images, reconstructing the patient's head CT data and the segmented lesion site data; S5: establishing visualization and interface, obtaining a head CT image and a three-dimensional model of the bleeding site and a head CT two-dimensional image of different viewing angles; S6: neural network prediction, obtaining a prediction result through improved CNN network training. Aiming at the characteristics of CT images of acute cerebral hemorrhage in a mobile operating room, the present invention performs image preprocessing, segmentation, reconstruction and prediction in steps to adapt to the application of mobile CT.

The utility model relates to the technical field of teaching appliances, and discloses an automobile automatic air conditioner practical training rack for teaching, which comprises an air conditioner body, a detector and a workbench, a mounting rack is fixedly mounted above the workbench, the detector is fixedly mounted in the middle of the mounting rack, the side part of the detector is connected with a transmission pipe, and the transmission pipe is connected with the air conditioner body. The end portion of the transmission pipe is connected with the air conditioner body in a clamped mode, the air conditioner body is installed on the side portion of the detector in a clamped mode, the side portion of the air conditioner body is electrically connected with a connecting line, and the end portion of the connecting line is fixedly connected with a motor. Through the arrangement of the mounting groove and the mounting rack, when the air conditioner body is mounted, mounting and dismounting are more convenient as much as possible, and through the mutual cooperation of the mounting rack, the limiting rack and the gear, when the air conditioner body is mounted, dismounting and mounting are more convenient as much as possible.

The utility model discloses a multi-view eye-protection ultrasonic detector which comprises a detector body, an operating device is arranged at the top of the detector body, a first imaging device is arranged at the top of the operating device, an eye-protection device is arranged on the first imaging device, a second imaging device is movably arranged on one side of the first imaging device, and the second imaging device is arranged on the other side of the first imaging device. And the first imaging device and the second imaging device face different directions and are used for facing different persons to observe. By arranging the far image light screen, visual fatigue caused by long-time use of the screen by medical staff can be relieved, the vision of the medical staff is protected, and then the medical staff can accurately diagnose; by arranging the second imaging device, compared with a display screen of an existing ultrasonic detector, the display direction and range are enlarged, a patient or a medical student can conveniently observe an ultrasonic image, the doctor-seeing experience of the patient is improved, and teaching is facilitated.

The utility model discloses a workbench for a biochemical laboratory. The workbench comprises a base, a storage cabinet arranged at the top of the base, and an experimental platform arranged at the top of the storage cabinet, a side suction part is arranged on the rear side of the experiment platform; a top cabinet is arranged right above the experiment platform, and an air blowing part for blowing air downwards is arranged in the top cabinet; one of the left side and the right side of the top cabinet is connected with the upper portion of the side vertical cabinet, and the bottom of the side vertical cabinet is installed on the top of the base. A teaching demonstration window used for teaching interaction demonstration with students is formed between the top cabinet and the experiment platform, an upper blowing and side air draft structure is adopted, toxic gas is prevented from being inhaled by an experimenter, and the experiment safety is improved.

The utility model discloses a current demonstration device, which comprises a lower box body, four demonstration boards are detachably arranged above the lower box body, and each demonstration board is respectively provided with respective electric equipment capable of displaying the current direction or intensity and a water flow movement device capable of displaying the current direction to be consistent with the current direction; a peristaltic pump is arranged at the bottom of the lower box body, a water storage device is arranged on the outer side of the lower box body, a battery pack and an external power socket are arranged in the lower box body, and a positive electrode of a power output connector is sequentially connected with the peristaltic pump, a reversible switch, a knob type slide rheostat and electric equipment and then returns to a negative electrode of the power output connector; an outlet of the peristaltic pump is connected with a water storage device, an outlet of the water storage device is connected with a right loose joint pipe through the lower section of a water inlet pipe, and an inlet of the peristaltic pump is connected with a left loose joint pipe through the lower section of a water return pipe. The device is simple in operation, complete in function and reasonable in circuit design, and can effectively improve the teaching efficiency and effect.

The present invention discloses a local magnification method and device for digital teaching materials, which obtains digital teaching materials in PDF format, selects a target area to be magnified from the digital teaching materials and determines the area coordinates, and when receiving a magnification instruction, converts the area coordinates into PDF page coordinates to obtain a PDF area corresponding to the target area, and gradually magnifies the PDF area according to a preset magnification amplitude until the magnified area reaches the maximum length and / or maximum width that the screen can accommodate, stops the magnification operation, and moves the magnified area to the center of the screen. The digital teaching materials in the present invention use PDF as a carrier, and magnify the PDF area corresponding to the target area to achieve magnification of the target area. Since the fonts in the digital teaching materials in PDF format are vector fonts, and the actual size of the vector fonts can be arbitrarily scaled without deformation or blurring, the present invention can also ensure that the content in the magnified area is clear after the target area is magnified, thereby facilitating teaching and learning.

The invention belongs to the field of simulation teaching devices, particularly relates to a simulation teaching device for financial management teaching, and aims to solve the problems that when an existing simulation teaching device is used, moving parts such as a simulation plate are not flexible enough in moving direction, can only move transversely or longitudinally and cannot meet different teaching requirements. The device comprises two supporting plates, the tops of the two supporting plates are fixedly provided with the same simulation platform, the top of the simulation platform is provided with a groove, a blackboard is fixedly installed in the groove, the top of the blackboard is provided with a plurality of simulation demonstration blocks, and the top of the simulation platform is fixedly provided with two supporting columns. The simulation demonstration block can move at will, is more flexible to use, facilitates teaching, has a protection function, can seal the groove in time after use, prevents impurities from entering, and can prevent dust of the monitoring display screen box and the monitoring camera.

This utility model relates to the field of experimental demonstration platform technology, and more specifically, to an intelligent experimental demonstration platform. It includes an experimental demonstration platform with a hollowed-out rear center, an experimental tabletop fixed to the upper end of the platform, and a slide rail tablet support module slidably connected to the experimental tabletop. The experimental tabletop and the slide rail tablet support module are electrically connected, enabling a tablet computer placed on the slide rail tablet support module to perform charging. An experimental imaging module is detachably connected to the front of the experimental tabletop. The slide rail tablet support module includes a tablet support tilted and fixed to a slide base. A horizontal electric slide rail is installed on the rear side of the experimental tabletop, and a rib is fixed to the rear side of the slide base and slidably connected within the horizontal electric slide rail. A conductive sheet is installed on the rib. The advantages are that it is an intelligent experimental demonstration platform that allows for flexible adjustment of the experimental imaging module position, horizontal sliding adjustment of the support position, and tablet charging functionality.

The present invention discloses a system for constructing structured cases, and relates to the field of medical equipment technology. The construction system of the present invention includes a clinical analysis module, a clinical information additional expansion module, a critical ultrasound and program evaluation module, a pathophysiology and phenotype interpretation module, a body reaction phenotype analysis module, a cause analysis module, a treatment analysis module, and a treatment effect feedback analysis module. The present invention solves the problem of uneven presentation of existing cases, standardizes the standardized and structured display of case diagnosis and treatment behaviors, makes the collection of case data more standardized and comprehensive, avoids the situation of uneven presentation of cases, and also makes doctors of different levels closer to unity in the process of case presentation, so as to facilitate subsequent case library management and teaching.