93results about How to "Save teaching time" patented technology

The invention provides a teaching attendance checking method and device based on face recognition. The method comprises the following steps: automatically dividing the image area of each student by analyzing a class photo shot by a teacher, and then carrying out face detection on each image region, and finally using a face recognition technology to confirm the student identity so as to obtain the attendance condition of students in class. The method and the device can be used for avoiding the traditional calling and answering manner, saving precious teaching time, simultaneously reserving credentials for teaching analysis, and efficiently preventing the misbehavior of answering instead among students.

The invention discloses a method for guiding drawing. The method comprises the following steps: receiving drawing information of a user; extracting a line profile from the drawing information according to an image recognition technology and recognizing different foreground and background objects; analyzing the change rule of thickness, smoothness and length; performing linear detection on the objects and recognizing an apparent horizon and a central point; performing picture processing and illumination analysis; recognizing highlight, shadow and projection in the image; appointing a drawing style as a limiting condition; guiding the drawing information image of the user; giving a correcting suggestion. According to the method, the user can know the difference and defect of the drawing skill in a drawing process according to the freehand sketching of the user, an image analysis recognition technology and an intelligent data comparison technique based on the drawing principle. No manual intervention exists in the whole process, so that the drawing efficiency of the user is increased and the study cost is reduced.

The invention discloses an automatic dispensing detection adjusting device, wherein comprises a programmable controller (6) and a laser displacement sensor (8), wherein the laser displacement sensor (8) is used for transmitting a signal to the programmable controller (6) through an analog quantity switching module (7); the upper end of the laser displacement sensor (8) is connected with a manipulator (4); one side of the manipulator (4) is connected with a dispensing head (3); the manipulator (4) can be used for driving the laser displacement sensor (8) and the dispensing head (3) to move upwards, downwards, leftwards and rightwards; the other side of the manipulator (4) is connected with a communication module (5) for inputting a control signal to the manipulator (4); and a high-accuracy contact sensor (1) for accurately positioning the laser displacement sensor (8) and the dispensing head (3) is connected below the programmable controller (6). According to the dispensing automatic detection adjusting device, high digitization and miniaturization of the dispensing needle are realized, teaching working time is convenient to set and adjust highly, and the production efficiency is increased.

The invention discloses a multifunctional multimedia teaching control system suitable for art teaching. The system comprises a main control computer module, a power supply module, a storage module, a computer, an input module, an audio and video processing module and an output module; the main control computer module comprises a file reading module, an exhibition stand video control module, a courseware backing-up module, a calligraphic display module and a roll calling module; and the main control computer module is connected with the power supply module, the storage module, the computer, the input module, the audio and video processing module and the output module. The multimedia teaching system disclosed by the invention adopts network teaching, is stable and reliable and is simple and convenient to use; a transmission speed and amplitude of art information are improved; the multifunctional multimedia teaching control system is convenient for students to receive and digest the art information; teaching time is reduced; learning efficiency of students is improved; and teaching efficiency is improved.

The invention discloses a writing teaching interaction system by utilizing an internet and voice technology and a realization method thereof. The method comprises the following steps: uploading audio and video information or text content information when starting writing, wherein the audio and video information and / or text content information at least comprise(s) writing keywords; carrying out semantic analysis and matching archiving on the keywords, and establishing a composition practice electronic archive; correcting or commenting the composition practice electronic archive, and then, issuing feedback results; and repeating the steps above until the feedback results are marked as completion of writing. The system can effectively improve the efficiency of writing of students, reduce learning burden, improve teaching efficiency and reduce teaching time, and has extremely obvious effect especially for lower-grade students.

The invention relates to an algorithm for judging the degree of concentration of students in class. In the invention, an image is firstly taken by a camera commonly used in a classroom, human face detection is performed using the existing Matlab based on a Viola-Jones algorithm to obtain human facial features, and eyes are the facial features that most directly reflect the degree of concentrationof students in class. In the invention, the use of a nose as an auxiliary reference area takes into account that centers of the two eyes and the position of tip of nose can be approximated as a triangle. The human facial features are selected as reference objects to convert a three-dimensional space of a human face into a two-dimensional plane, so that the degree of concentration of the students can be judged faster. Finally, according to various statuses of the students in class, the degree of concentration of the students in class is determined by using three methods which are an algorithm for judging the degree of concentration of the students via side faces, an algorithm for judging the degree of concentration of the students with the head lowered (lifted), and an algorithm for judgingthe degree of concentration of the students through the opening degree of eyes.

The invention provides a teaching attendance method based on human face recognition, and relates to the technical field of electronics. The method comprises the steps that the curriculum schedule of each classroom is preset, and the human face images of students corresponding to each curriculum schedule are collected in advance to extract feature points to acquire feature samples; a camera device automatically starts at the beginning of each class; the camera device takes a picture and transmits the picture to a background server through a network; the background server carries out human face detection on the taken picture; the number of different detected human face images is counted; different human face images are extracted, and the identities of the students are retrieved through a human face recognition algorithm; the curriculum schedule information generated when attendance images are collected is recorded; attendance information is generated according to the identities of the students and sent to an attendance management terminal. According to the invention, classroom teaching time can be saved, and attendance substitution can be avoided.

The invention provides a Student attendance monitoring method, which comprises the following steps: a first picture is acquired through a first camera installed on the roof of a classroom; a second picture is acquired through a second camera mounted in the front of the classroom; first number of people is determined according to the first picture; second number of people and people's identity information are determined according to the second picture; and when the first number of people is consistent with the second number of people, an attendance record is generated according to the people's identity information. According to the invention, intelligent automatic roll call can be realized without roll call by course teachers. Thus, convenience and accuracy of attendance are greatly raised, classroom teaching time is saved, and teaching efficiency is boosted.

The invention discloses a multifunctional blackboard for education. The multifunctional blackboard comprises a frame, a mounting shaft, a driven groove wheel, a driving driver plate, first electric push rods, a first reciprocation mechanism, a wet towel, second electric push rods, a second reciprocation mechanism, a mounting box, blackboard brush strips, a dust collector, an air heater and hard air pipes. The first reciprocation mechanism comprises a motor, chain wheels, a chain and a moving plate. The multifunctional blackboard is provided with the mounting shaft, multiple blackboards, the driving driver plate and the driven groove wheel, the multiple blackboards can be used in turns, the blackboards do not need to be wiped, the teaching time is saved, and the teaching quality is improved; the second electric push rods, a collection frame, the second reciprocation mechanism, the mounting box, the blackboard brush strips and the dust collector are arranged, words written with chalk onthe blackboards can be automatically erased, and the automation degree is high; and the first electric push rods, a mounting plate, the first reciprocation mechanism and the wet towel are arranged, the blackboards wiped by the blackboard brush strips are further wiped again, the blackboards are cleaner through wiping, the wiping effect is improved, and the education quality is prevented from beinginfluenced.

The invention discloses a multimedia teaching system comprising a schoolyard teaching management center and a teaching main computer, wherein the schoolyard teaching management center is connected with the teaching main computer; the teaching main computer is connected with an information releasing device; the information releasing device comprises a plurality of information displays; the information releasing device is connected with the information displays through USB interfaces; and the information displays are connected with PCs (personal computers). In the way, the speed and the range of information transmitting can be improved by the multimedia teaching system, and a teaching source is transmitted to the PCs of students through the plurality of information displays, so that the students can conveniently receive and digest information, the teaching time is shortened, the study efficiency of the students is improved, and the teaching efficiency is improved..

The invention relates to a manufacturing method of an adult rabbit specimen. According to the method, a fur of a carcass of a rabbit is peeled completely; gypsum powders are scattered at the inner and outer sides of the peeled fur to dry the fur; the dried fur is added into a liquid detergent aqueous solution for immersing and after the fur is scrubbed for cleaning, a sodium carbonate solution is applied to the inner and outer sides of the fur and reaction time lasts 2 to 5 hours, and then a boric acid antiseptin is applied to the inner side of the fur to carry out antiseptic treatment; the adult rabbit carcass with the fur peeled is placed into a gypsum paste to obtain a gypsum mould; a paste is injected through a sprue gate and after drying in the shade again, a gypsum prosthesis is obtained; the gypsum prosthesis is trimmed, wherein the distance between the outer surface of the gypsum prosthesis and the inner wall of the gypsum mould is 1.5 to 1.8 centimeters; a mould silica gel is injected into the gypsum mould so as to obtain a hollow silica gel prosthesis; the processed fur coats the hollow silica gel prosthesis so as to obtain a rabbit prosthesis; and after being organized, the rabbit prosthesis is fixed at a wood seat board, so that an adult rabbit specimen is prepared. The manufacturing method is simple and the cost is low. The prepared specimen has no pungent odor and can be preserved easily; and the structure of the specimen is complete and beautiful.

The invention relates to a multimedia teaching system, which comprises a central control system, and is characterized in that the central control system is respectively connected with projection equipment, audio equipment, a teaching terminal and an information delivery system, the teaching terminal comprises an electronic whiteboard and a voice input device, the information delivery system is connected with a plurality of information displays, the information displays are connected to a learning terminal, the information displays comprise a courseware display, a case display, a test questiondisplay, a network data display and a shared resource display, and the learning terminal comprises a touch display and a voice transmission system. The multimedia teaching system provided by the invention is provided with the teaching terminal, thereby being capable of performing multimedia teaching in the classroom. Meanwhile, teaching resources are transmitted to the learning terminal through the courseware display, the case display, the test question display, the network data display and the shared resource display, thereby facilitating reception and digestion of students for the information, reducing the teaching time, improving the learning efficiency of the students and improving the teaching efficiency.

The invention provides a portable primary school Chinese teaching board and belongs to the field of Chinese teaching tools. The portable primary school Chinese teaching board comprises a fixing plate,a fixing frame, a fixing rod and a base; an aluminum alloy fixing frame is arranged at the periphery of the fixing plate; a first sliding plate and a second sliding plate are slidably mounted in thefixing frame and are respectively located at the front side and rear side of the fixing plate; the lower part of the fixing frame is fixedly welded to the fixing rod; the lower part of the fixing rodis provided with a turntable; the lower part of the turntable is fixedly connected with a screw rod; the screw rod is installed in a supporting rod; the supporting rod is provided with a screw rod lifting machine; the bottom of the supporting rod is welded to the base; and the lower part of the base is provided with casters. With the portable primary school Chinese teaching board of the inventionadopted, teaching content can be displayed on the teaching board in advance, so that classroom teaching time can be saved; the plurality of writing plates are adopted, and the writing plates are retractable, small in size, convenient to carry, and occupy small space; the teaching board is a double-sided writing board with a large writing area; the lower part of the teaching board is provided withthe turntable, so that the teaching board is convenient to change its direction; the screw rod lifting machine is adopted, so that the height of the teaching board is convenient to adjust; and the casters are adopted, so that the teaching board is convenient to move.

The invention discloses an electromobile direct-current charging pile simulating training system. The system is installed on a computer, the computer is connected with a touch screen and a card reader, and the computer is connected with a charging pile management server and a mobile payment server through a public network. Compared with the prior art, the simulating system is low in cost, capable of being used and popularized in a wide-range mode, convenient to carry, easy to operate and capable of saving teaching time.

The invention discloses a PPT page turning remote controller which comprises an emitting device and a receiving device. The emitting device comprises a main board, a wireless signal emitting unit, an information storage unit, a touch display screen, a power supply unit and a switching key. The touch display screen is arranged on the front surface of the emitting device. The touch display screen comprises a touch keyboard area and a content display area. The touch keyboard area comprises PPT page touch keys. The content display area comprises a PPT page simple content display area. The switching key is arranged on the side surface of the emitting device. The wireless signal emitting unit, the information storage unit, the touch display screen, the touch keyboard area and the content display area are connected with the main board. The main board, the switching key and the power supply unit are connected in sequence. The PPT page turning remote controller is capable of precisely carrying out page turning operation on a PPT, and the teaching efficiency is improved.

The invention belongs to the technical field of mathematics teaching equipment, and discloses a mathematical simulation demonstration device under the application of the probability statistics theory. A coin simulation platform is arranged on a bottom plate, a recording pen is fixed to the surface of the coin simulation platform, and a note bar is arranged beside the recording pen. A control switch is arranged on one side of the note bar, a series of coin circular plates are arranged on the surface of the coin simulation table, pressing springs are arranged at the bottoms of the coin circular plates, a storage tank is formed in the surface of the coin simulation table, and supporting rods are fixed to the back of the coin simulation platform, and the tops of the supporting rods are connected with a magnetic plate, a vertical rod is disposed on one side of the bottom plate, and a dice experimenter is fixed to the vertical rod through a connecting rod; and a main rod is arranged in the dice experimenter, and the circumference of the main rod is connected with side rods, and the side rods are circumferentially distributed. According to the mathematical simulation demonstration device under the application of the probability statistics theory, corresponding experimental equipment is invented according to the commonly used coin-tossing experiment and the dicing test in the probability statistics, the experimental steps when the teacher teaches the lecture can be simplified, and great convenience is brought to the teacher and the student.

The invention discloses a mathematics autonomous learning system, which comprises a main flat panel display computer, a projector, a main server and auxiliary flat panel display computers, wherein the main flat panel display computer is connected to an automatic screen capturing system, a USB port, a backup system, a sound output system and a writing board, the projector is connected with the main flat panel display computer, the projector is provided with a piece of projection cloth right ahead, the writing board is provided with a laser pen, the main flat panel display computer is connected to the main server, the main server is connected to the internet and a local area network, a plurality of auxiliary flat panel display computers are arranged, the auxiliary flat panel display computers are all connected with the main server, each auxiliary flat panel display computer is also connected to a writing board, and each wiring board is provided with a laser pen. The mathematics autonomous learning system is intelligent, convenient, conducive to teaching and teaching interaction, improving interests of students and enhancing understanding and mastering of the students for basic concepts, basic theories and basic methods of mathematics, and convenient for teachers to detect and guide.

The invention discloses a teaching interaction management method based on a capacitance screen and an intelligent management system. A capacitance screen control terminal is arranged, and an electronic white board integrated system is arranged in the capacitance screen control terminal and comprises a handwriting module, a tool module, a database module and synchronization equipment; a mobile communication terminal, a white board control site and a test system platform are arranged to achieve data interaction with the electronic white board integrated system; paperless teaching and testing are achieved, and the method and the system are flexible and convenient to use, meet requirements of real-time teaching on different occasions, and are flexible in process, practical and efficient; flexibility of interactive teaching and test management is enhanced, teaching time is saved, and learning flexibility is improved; the intelligent teaching process is more efficient, and predictability of teaching implement schemes is strong; teaching interaction service content is expanded, a new mode of teaching and learning integrated control management is provided, a plurality of integrated systems or sub-systems are limited on the same set of application servers to achieve information interaction or wireless network transmission, and system logic is simplified so that a user can conveniently use the system.

The invention discloses a method for preparing a whole alfalfa specimen with an original color based on bioplasticization. The method comprises: collecting a complete leafy alfalfa specimen containingleaves, stems, roots and root hair, finishing the complete leafy alfalfa specimen, penetrating the stems with iron wires, supporting the alfalfa with a multi-layer inclined funnel-shaped support table, carrying out treatment with a stem and leaf treatment liquid and a root treatment liquid, adding plasticizing silicone into the specimen, carrying out plasticization in a vacuum box under vacuum conditions, feeding the plasticized specimen into a vacuum chamber and curing the plasticized specimen through a curing agent organotin to obtain the whole alfalfa specimen. The whole alfalfa specimen is complete and beautiful, the shape and position are clear and natural, and the original bright color of the plant can be retained. The method can be used for teaching, exhibition and popularization of science and solve the problem that a fresh specimen and an immersed specimen produce irritating smell and are difficult to store and transport.

The invention discloses a piano learning system, which comprises an audio acquisition module, a display module, a teaching module, a main control unit, a note extraction module, a power supply moduleand a main control unit, wherein the main control unit is used for controlling on-off of a power supply, acquisition and identification of notes and teaching demonstration; the audio acquisition module is used for acquiring and storing sound signals and dividing acquired music segments into a plurality of note segments; each note segment comprises one or more notes, and the sound signals are converted into electric signals and fed back to the note extraction module, so that the tone level of a player can be conveniently judged in the later period; the note extraction module is used for identifying and matching the processed audio clips in a note model, judging the similarity and finding out clips which are not matched with the note model; the display module is used for displaying note positions and reasons of wrong playing and teaching demonstration; and the teaching module is used for teaching demonstration. According to the piano learning system, teaching cost and teaching time are greatly saved, and students can learn autonomously.

The invention discloses a guitar used for introductory guidance and learning, which comprises a sound box (1) and a neck (2) connected with the sound box (1), the upper end of the neck (2) is connected with the headstock (3), and the neck (2) There is a fingerboard placement groove (4) inside, and a wiring groove (5) is arranged in the fingerboard placement groove (4), and a transmission wire is arranged in the wiring groove (5), and the fingerboard (6) is set on the fingerboard Placed in the groove (4), a group of grids (7) are arranged on the fingerboard (6), and electroluminescent sheets (8) are arranged in the grilles (7), and the electroluminescent sheets (8) are connected with transmission wires. The invention reduces the difficulty of teaching when beginners learn the guitar, can shorten the teaching time, and is convenient for students to detect whether the playing is accurate during practice.

The invention discloses an educational display device for university political classes, which comprises a bearing column, a rotating cylinder, a first display board and a second display board, the lower end of the bearing column is provided with a base, and the upper end of the bearing column The outer side is sleeved with a rotating drum through a slewing bearing. Two connecting columns are symmetrically arranged on the outer side of the rotating drum. The ends of the two connecting columns away from the rotating drum are fixedly connected to the first display board. Both ends of the first display board are One end of the extension block is fixedly connected, the other end of the extension block is connected to the second display board through the connection block, and the rotating cylinder is set so that the device can be rotated. The first display board and the second display board are arranged on the outside of the rotating drum , forming a polygon, which is convenient for the display of teaching political topics. The extension block and connecting block are set to make the second display board movable, so that the second display board is parallel to the first display board, so as to better display political topics to students. Thereby improving the efficiency of political class teaching.

The invention discloses an online intelligent multimedia teaching platform and relates to the technical field of teaching platforms. The online intelligent multimedia teaching platform comprises a central control system, wherein the central control system is bidirectionally connected with a teacher terminal and a student terminal through wires separately, and an input end of the central control system is connected with an output end of a user login unit; the central control system is bidirectionally connected with a teaching management module through a wire, and the teacher terminal comprisesa main computer, a main microphone and a main camera. The online intelligent multimedia teaching platform realizes bidirectional connection with the teacher terminal through the wire, the teaching burden of teachers is reduced, and the advantages of traditional teaching are exerted on the basis of an existing multimedia teaching mode. Since the teacher terminal comprises the main computer, the main microphone and the main camera, teaching time is effectively saved, and the teachers can also screen out more hot questions for unified answering in class.

The invention relates to a method for making an adult cat specimen. The method comprises the following steps: completely peeling off the fur of the corpse of a cat; scattering gypsum powder on the inner side and the outer side of the fur which is peeled off to dry the fur; putting the dried fur into a cleanser essence aqueous solution for soaking, after the fur is washed cleanly, taking sodium carbonate solution, applying the sodium carbonate solution to the inner side and the outer side of the fur, maintaining the state for 3 to 6 hours, and applying boric acid antiseptic powder to the inner side of the fur for antiseptic treatment; putting the peeled corpse of the adult cat in plaster paste to obtain a plaster mold; injecting the plaster paste from the sprue gate, and drying in shade to obtain a plaster prosthesis; trimming the plaster prosthesis, wherein the distance between the outer surface of the plaster prosthesis and the inner wall of the plaster mold is 2 to 2.3 centimeters, and injecting mold silica gel in the plaster mold to obtain a hollow silica gel prosthesis; wrapping the hollow silica gel prosthesis with the treated fur to obtain a cat prosthesis; after trimming the cat prosthesis, fixing the cat prosthesis on a xyloid seat board to prepare the specimen of the adult cat. The method is simple, the cost is low, the specimen which is prepared via taxidermy has no pungent odor, the specimen is easy to preserve, and the structure of the specimen is complete and beautiful.

The invention relates to a manufacturing method of an adult duck specimen. According to the method, a fur of a carcass of a duck is peeled completely; gypsum powders are scattered at the inner and outer sides of the peeled fur to dry the fur; the dried fur is added into a liquid detergent aqueous solution for immersing and after the fur is scrubbed for cleaning, a sodium carbonate solution is applied to the inner and outer sides of the fur and reaction time lasts 2 to 5 hours, and then a boric acid antiseptin is applied to the inner side of the fur to carry out antiseptic treatment; the adult duck carcass with the fur peeled is placed into a gypsum paste to obtain a gypsum mould; a paste is injected through a sprue gate and after drying in the shade again, a gypsum prosthesis is obtained; the gypsum prosthesis is trimmed, wherein the distance between the outer surface of the gypsum prosthesis and the inner wall of the gypsum mould is 0.8 to 1.0 centimeters; a mould silica gel is injected into the gypsum mould so as to obtain a hollow silica gel prosthesis; the processed fur coats the hollow silica gel prosthesis so as to obtain a duck prosthesis; and after being organized, the duck prosthesis is fixed at a wood seat board, so that an adult duck specimen is prepared. The manufacturing method is simple and the cost is low. The prepared specimen has no pungent odor and can be preserved easily; and the structure of the specimen is complete and beautiful.

Provided is a method for manufacturing a pig ear intravenous injection model based on mathematical modeling. The method comprises the steps that firstly, agentia is prepared, and the caudal vein is separated; then the prepared agentia is utilized for manufacturing a pig ear mold and an ear vein silicone rubber model, the ear vein silicone rubber model is embedded into an ear vein groove of the pig ear mold, and wrapped by a skin model, and the pig ear intravenous injection model can be manufactured. The method is simple, cost is low, the manufactured ear intravenous injection model is easy to store, complete and attractive in structure, clear and natural in form position, and capable of being used for repeated practice, the defect that live pig ear intravenous injection cannot be repeatedly operated is overcome, the problems that a beginner usually injects a pig repeatedly, and repeated ear intravenous injection cannot be carried out on a live pig are solved, the teacher teaching time is shortened, the learning interest of students is stimulated, and the teaching effect is improved.

The invention discloses a teaching tool of from-to charts in logistics. The teaching tool comprises a magnetic supporting plate (2) and a plurality of magnetic unit blocks (1) attached on the magnetic supporting plate (2). The magnetic unit blocks are arranged in a matrix allowing writing. According to this arrangement, the problem of multiple repeated drawings of from-to charts in chalks on blackboards by teachers can be avoided. The teaching tool has the advantages of being clear in structure, harmless for environment and teachers health, high in efficiency, and uninfluenced by conditions, such as blackboards in classrooms. Therefore, the cost of chalks and teaching hours can be saved and the comprehensive benefit of the teaching tool is better as the quantity of and the times of computation is larger.

The invention discloses an intelligent music teaching system, which comprises a teaching terminal, a camera device and a plurality of auxiliary display terminals, the teaching terminal is wirelessly connected with each auxiliary display terminal; the teaching terminal is installed on a classroom platform. The auxiliary display terminals are respectively arranged on student desks; the camera deviceis wirelessly connected with the teaching terminal; the camera device is installed close to a to-be-played musical instrument or detachably installed on the to-be-played musical instrument, and the angle of the camera device relative to the to-be-played musical instrument is adjustable. The camera device is used for collecting a panoramic video stream in the playing process of a to-be-played musical instrument and sending the panoramic video stream to the teaching terminal. The teaching terminal projects the panoramic video stream to each auxiliary display terminal for real-time display. During on-site teaching, the real picture or the virtual picture of the playing action of the teacher is displayed through the auxiliary display terminal, so that students can clearly see the playing action of the teacher, and the learning efficiency is improved.

The invention discloses an intelligent interaction multimedia teaching display board system which comprises a teaching display board. A first microprocessor, a designated student calling button, an audio and video output module, a student state indicator lamp, a first voice indicating module and a first wireless communication module are arranged on the teaching display board. The first microprocessor is electrically connected with a first power module. The first power module is electrically connected with a first power switch. The intelligent interaction multimedia teaching display board system further comprises a plurality of student ends corresponding to all students one to one. Each student end comprises a seat body. A second microprocessor, a face recognizing module, a teacher callingbutton, an audio and video input module, a second sound indicating module and a second wireless communication module are arranged on each seat body. Each second microprocessor is electrically connected with a second power module on the corresponding seat body. The first wireless communication module is in wireless signal connection with the second wireless communication module of each student end. By means of the display board system, various types of learning interaction can be conveniently conducted between a teacher and students in the class, and the improvement of the learning efficiencyof the students in the class is promoted.