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 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 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 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 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 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.

The invention discloses a multifunctional mathematics learning aid and a using method thereof and relates to the technical field of teaching appliances. The multifunctional mathematics learning aid comprises an aid storage box of a cuboid structure and a storage box cover, wherein a U-shaped groove is formed in the edge center of one long side of the aid storage box; a connecting block is arrangedin the edge center of one long side of the storage box cover; the connecting block is rotationally connected into the U-shaped groove by virtue of pins; the storage box cover is composed of a skeleton plate and light pervious whiteboards which are symmetrically attached onto double sides of the skeleton plate; a plurality of strip-shaped grooves penetrate through the double sides of the skeletonplate are formed in the skeleton plate in equal distance; the strip-shaped grooves are segmented into multiple closed spaces by the light pervious whiteboards and the skeleton plate. The teaching aidprovided by the invention has diversified functions, can serve as a storage box for containing common drawing aids so as to bring convenience to carry and manage the common drawing aids and avoid lossof the teaching aids due to poor management, and can also serve as a portable statistical chart drawing tool. The drawing operation is simple and rapid, and waste of teaching time is reduced.

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.