30results about How to "Improve the efficiency of listening to lectures" patented technology

The invention belongs to the technical field of vertebral column correction and particularly relates to a student seat with a vertebral column correction function. The invention aims at providing a student seat with a vertebral column correction function, which has the vertebral column correction function to realize correct sitting posture of a student and can protect the vertebral column of the student and improve the learning efficiency. The student seat with the vertebral column correction function, provided by the invention, comprises a base, a first button, a fixed sitting plate, a second button, a movable sitting plate, a first spring, a moving rod, a back plate, a bearing seat, a rotary shaft, a gear, a rack and the like, wherein the first button is connected with the middle of the bottom in the base through a screw; and the fixed sitting plate is horizontally welded at the top of the base. The student seat with the vertebral column correction function, provided by the invention, realizes the effects of realizing correct sitting posture of the student, protecting the vertebral column of the student and improving the learning efficiency.

The invention discloses an interactive teaching system based on a PC. The system comprises an information acquisition module, an artificial intelligence processing module and an information feedback module, the information acquisition module is used for acquiring and storing facial and eyeball information of a student, the artificial intelligence processing module is used for carrying out artificial intelligence analysis on data collected by the information collection module and calculating the collected data by constructing an eyeball movement model and a face recognition model to obtain a calculation result, and the information feedback module is used for receiving the artificial intelligence analysis result and knowing the learning state of students. According to the invention, the teacher terminal and the student terminals are connected by using a novel technology, the teaching process is realized anytime and anywhere, and through the application of eyeball recognition and face recognition technologies, the classroom interaction frequency between teachers and students is increased, the learning interestingness of students is improved, and the teaching content is richer.

The invention discloses a handwriting blackboard writing recognition method, which belongs to the technical field of optical character recognition and comprises the following steps: S1, inputting a to-be-detected handwriting blackboard writing image; s2, detecting and filtering text information in the hand-written blackboard writing image by using the trained CTPN detection model so as to determine a text area; then, performing cutting operation on the text area, and cutting out the text area of each line; s3, carrying out preprocessing operation on the cut text line area image, wherein the preprocessing operation comprises operations such as graying, normalization and scale zooming; s4, sequentially inputting the preprocessed image set into the trained CRNN recognition model, and performing end-to-end text recognition to obtain text line information in the image; and S5, integrating and outputting the output text line information so as to output a recognition result of handwriting blackboard writing. According to the method, a model combining a CTPN detection algorithm and a CRNN recognition algorithm is adopted, non-segmentation recognition can be carried out on the blackboard writing of the handwriting blackboard, errors caused by over-segmentation and under-segmentation are better reduced, and the recognition accuracy and robustness are improved.

The present invention relates to an intelligent management system, and relates to an information interaction management field. The system comprises a teacher terminal, a student terminal, a data management system and a database. The data management system is in communication connection with the teacher terminal and the student terminal, the data management system manages and controls the database,students need to perform concentration degree detection when browsing teaching files, and the concentration degree detection is that: the students browse the teaching files, a video identification device performs identification verification for a face so as to prevent the current students from being away from the student terminals and ensure that students can watch the teaching files all the time. Compared to the prior art, the intelligent management system can perform online network teaching conditions of the teachers and the students, and when the teachers perform teaching live, the studentterminal have the concentration degree monitoring measures to allow the students to keep the states of listening to the teacher carefully when the students perform teaching live through a concentration degree monitoring measure.

The invention discloses an expression recognition method suitable for classroom teaching, and the method comprises the following steps: carrying out the real-time recording of the condition of a classroom through employing a camera device, and obtaining the real-time video information of the classroom; Processing the real-time video information to obtain student face image information, and judgingthe disappearance time of the face image information; When the disappearance time of the student face image information is greater than a preset time value T1, judging that the student is in a distraction state, and counting the distraction rate of the student; By arranging the camera equipment, real-time conditions in a classroom can be monitored, the camera equipment is combined with the processing device to detect that the face is appearing time, and when the face of a certain student does not appear time exceeding a preset value, the student can be automatically judged to be in a distraction state; On the contrary, it is considered that normal pause occurs, and head lowering notes and other activities are obtained; By means of the method, whether the student is distracted or not during class can be effectively detected.

The invention provides a classroom interaction method and device, computer equipment and a storage medium, and the method comprises the steps: obtaining a three-dimensional scene image in a classroom, and displaying the obtained three-dimensional scene image to a target user; and determining a first operation instruction sent by a target user based on the three-dimensional scene image, and sending the first operation instruction to a user simulation terminal located in a classroom, so that the user simulation terminal executes an operation corresponding to the first operation instruction. According to the embodiment of the invention, the three-dimensional scene image is displayed for the target user, and the target user sends the first operation instruction based on the three-dimensional scene image, so that the user simulation terminal arranged in the classroom correspondingly executes the first operation instruction sent by the target user, and the target user can better experience the learning atmosphere in the classroom; the information interaction between the target user and the user in the classroom is satisfied; in addition, the attention of the target user can be concentrated, and the lecture attending efficiency is improved.

The invention provides a teaching system with a virtual classroom experience function. The teaching system comprises a computation center unit, a timer, VR (virtual reality) equipment, a display unit, a microphone, earphones, a writing and reading machine, a teaching resource server, a camera and a wireless communication unit. The timer, the VR equipment, the display unit, the microphone, the earphones, the writing and reading machine, the teaching resource server, the camera and the wireless communication unit are respectively connected with the computation center unit, and a cloud server is in wireless communication connection with the wireless communication unit and is wirelessly connected with a mobile terminal. The teaching system has the advantages that true experience similar to attending lecture in classrooms can be created by the VR equipment, so that the lecture attending efficiency of students can be enhanced; photographed teaching video can be transmitted onto the cloud platform to be shared.

The invention discloses a blackboard writing acquiring system. The blackboard writing acquiring system comprises a multimedia acquiring module and a multimedia processing module, the multimedia acquiring module is arranged at the position where a blackboard area can be shot, is in communication with the multimedia processing module and is used for conducting multimedia acquiring on the blackboardarea and sending acquired multimedia blackboard writing information to the multimedia processing module, and the multimedia processing module is used for processing the multimedia blackboard writing information to obtain the processed multimedia blackboard writing information. The processed multimedia blackboard writing information can be checked by a student at any time, thus the burden for the student to take notes in a classroom is reduced, and the lecture attending efficiency and the learning efficiency are improved.

The invention provides a management system and relates to the field of information interaction management. The system comprises a teacher terminal, student terminals, a data management system and a database, wherein the data management system is in communication connection with the teacher terminal and the student terminals, and the data management system is used for managing and controlling the database. Students need to be subjected to concentration degree detection when the students browse teaching files through the student terminals, wherein according to concentration degree detection, when the students browse the teaching files, fingers with registered fingerprints need to be subjected to identity verification through a fingerprint identification device for a long time to ensure thatthe students watch the teaching files all the time. Compared with the prior art, the system has the advantages that network teaching conditions of teachers and the students can be managed online, andwhen the teachers conduct teaching live broadcast, the student terminals have concentration degree monitoring measures; through the concentration degree monitoring measures, the students can keep thestate of carefully listening to classes all the time during teaching live broadcast.

The invention relates to a safety stool with a warning device. Four corners of the stool surface are respectively mounted with a lower right contact point, an upper right contact point, an upper left contact point and a lower left contact point. A right alarm area is disposed between the lower right contact point and the upper right contact point. A left alarm area is arranged between the upper left contact point and the lower left contact point. An upper alarm area is disposed between the upper right contact point and the upper left contact point. A correct posture area is arranged at the middle part of the stool surface. An alarm lamp is mounted on a lateral side of the lower left contact point, and a power switch is installed at the front side of the lower left contact point. The invention provides a solution to the problem that in class, some students always sit groggily, and can make students energetic. Only when the posture is correct can the class efficiency be high. Also, a correct posture cannot result in a curve cervical spine. Without harm on the body, the safety stool provided in the invention can be used in class at school, and can play a role in correcting the sitting posture of students.

The invention provides a method and device for obtaining blackboard-writing information, a medium and electronic equipment. The method comprises the steps of in a writing area of a writing board, acquiring second track information in a second line area from the back of a first line area; analyzing second track information to acquire an evaluation interval length threshold; sequentially analyzingthe second track information according to the evaluation interval length threshold value to obtain information of a plurality of unit areas; sequentially extracting unit track information from each piece of unit region information; and calling a trajectory analysis model to perform character analysis on each piece of unit trajectory information, and obtaining corresponding character coding information in sequence. The unit track information is extracted from the blackboard writing and converted into the character code information, so that the process of converting the blackboard writing information into the character code information is completed, standard character information is provided for students, the reading difficulty brought to the students by blackboard writing difference is reduced, the handwriting recording time is shortened, and the lesson listening efficiency is improved.

The invention discloses a video processing method and a device. The method comprises the following steps of: obtaining current attribute information of each video in the multi-channel video, wherein,the current attribute information of each video comprises a current resolution and a current aspect ratio of video frames of each video, and each video is respectively used for indicating a class attendance state of each student; judging whether the current attribute information of each video is matched with the preset attribute information of the preset video frame template; When the judgment result is yes, synthesizing the multi-channel video to obtain a synthesized video; The synthesized video is transmitted to a video playing device to display the synthesized video. The technical proposalof the invention not only enables the students to understand the other students while learning in the distance so as to obtain the real off-line class experience as much as possible and improve the distance learning experience, but also facilitates mutual supervision among the students so as to improve the class attendance efficiency.

The present invention provides a video system with a virtual teaching experience function. The video system can creates real experience of teaching and lesson taking through a VR device so as to improve the students' listening efficiency and transmit the shot teaching video to a cloud platform for sharing. The system comprises a computing center unit and a timer, a VR device, a display unit, a microphone, an earphone, a writing reader, a teaching resource server, a camera and a wireless communication unit which are connected with the computing center unit, the wireless communication unit is in wireless communication connection with the cloud platform, and the cloud platform is in wireless connection with a mobile terminal.

The invention discloses a suitcase for pupils. The suitcase comprises a case body, wherein a pull rod is arranged on one side surface of the case body, universal wheels are fixedly connected on the other side surface of the case body, a first zipper is arranged on one side surface of the case body, a second zipper is arranged on one side of the first zipper and located at the top of the case body,a bearing plate is fixedly connected to the inner bottom wall of the case body, a slide groove is formed in the top of the bearing plate, a slider is movably connected in the slide groove, and a storage case is fixedly connected to the top of the slider. The suitcase for pupils has the advantages that books can be arranged neatly and clamped, articles such as the books, stationery and the like are reasonably planned on the whole, a pupil can find the needed article directly when replacing the books and the stationery, time consumption is reduced, lesson taking efficiency is increased, the burden of the suitcase to bodies of the pupils is reduced, the bodies can develop normally, and bones grow healthily.

The invention discloses a multimedia teaching device for university theory education class. The device comprises an operation table and a curtain storage box, a wiring hole is formed in the upper surface of the operation table; a mounting base is arranged on the rear side of the operation table; a projector accommodating box is arranged on the left side of the mounting base; the left side in the projector accommodating box is movably connected with the bottom end of a telescopic rod through a rotating shaft; a projector is mounted at the top of the telescopic rod; the angle of the shading cloth can be adjusted through gear rotation; therefore, light reflection is reduced from multiple angles. Students can learn in the theory course; image quality for viewing multimedia images, the studentlecture attending and recording efficiency is improved; the teaching efficiency of teachers is improved, the eyesight of students is protected, the use space of the multimedia operation table is increased and the teaching comfort of the teachers is improved by arranging the microphone clamp capable of being fixed and moved, the operation is simpler and more convenient by arranging the master control switch, the workload of the teachers in the teaching process is reduced, and the teaching efficiency of the teachers is improved.

The invention discloses an expression recognition method suitable for classroom teaching, and the method comprises the following steps: recording conditions of a classroom in a real-time manner through employing camera equipment, and obtaining the real-time video information of the classroom; processing the real-time video information to obtain student face image information, and judging the disappearance time of the face image information; when the disappearing time of the facial image information of the student is greater than a preset time value T1, judging that the student is in a distracted state, and counting the distracted rate of a student; by arranging the camera equipment, monitoring the real-time situation in the classroom, combining the camera equipment is with the processing device to detect that a human face appears for a certain time, and when the human face of a certain student does not appear for the time exceeding a preset value, automatically judging that the studentis in a distracted state; otherwise, I considering that pausing is normal, and activities such as lowering the head to take notes are obtained. Whether students are distracted or not in class can beeffectively detected.

The invention belongs to the technical field of PPT intelligent control, and discloses an integrated gesture control PPT system and method based on a cloud edge cooperation technology, and a platform. An edge device obtains human joint coordinate original data; a network transmission technology is selected; three-dimensional reconstruction is performed; human body postures are judged through a random forest model; and a preset software program runs on a PC for controlling a PPT, and corresponding keyboard and mouse operation is carried out according to a data analysis result transmitted from the cloud to finish corresponding PPT operation. According to the invention, the next page of the PPT can be turned over by swinging the hand leftwards, the previous page of the PPT can be turned over by swinging the hand rightwards, a laser pen can be called out by one finger of the hand, and highlighter marking can be carried out by scratching the hand. A shadow following teaching platform provided by the invention is an auxiliary teaching platform which can support a teacher to upload the PPT and students to download the PPT, and can realize that the teacher plays the PPT and uploads the PPT at the same time.

The invention discloses a ring dynamic light-operated ideological and political teaching personnel management robot. The robot comprises a mobile damping support frame, a limited multi-point expansion temporary storage management device, an unbalanced light-sensitive switch magnetic vibration anti-sleepiness mechanism, a multi-path balance equal gravitational potential energy scanning mechanism, a fingerprint punch-card machine and a central processing unit. The invention belongs to the field of personnel management, and particularly relates to a ring dynamic light-operated ideological and political teaching personnel management robot. The asymmetric principle and the self-service principle are applied to the technical field of personnel management, a ring is used as a model, the light principle and the magnetic vibration principle are utilized, students who sleep in class are reminded, and the students are assisted in self-management under the condition that teaching of teachers and learning of other students are not affected, so that the efficiency of the students is improved, and the students are helped to learn. In cooperation with fingerprint card punching, card insertion limitation and mobile phone limitation are carried out on student cards, the attendance rate of students is supervised, the phenomenon of playing mobile phones in class is reduced, and the learning efficiency of the students is further improved.

The invention discloses a mask, and particularly discloses a massage mask. The massage mask comprises a mask body and a massage frame. The massage mask is characterized in that the massage frame is mounted at the front end of the mask body, vibration protrusions are mounted at two ends of the mask body and correspond to temples of a user, a controller is mounted at the back of the mask body, a battery slot is mounted below the controller, and a control switch is mounted on the right side of the battery slot. The massage mask has the advantages of effectively assisting students to massage eyes and temples at breaks, relieving neural fatigue quickly, improving class listening efficiency of students greatly and benefiting study of the students.

The invention discloses a blackboard capable of achieving scanning. The blackboard is composed of a light-permeable glass board (1), lighting lamp tubes (2), a blackboard eraser (3), a light sensation sensor (4), an engine (5), a power supply interface (6), an information storing device (7), an information arrangement program board (8) and a printing device (9). The working principle of the blackboard comprises the steps that under supporting of the engine (5) and lighting of the lighting lamp tubes (2), the light sensation sensor (4) senses portions (handwriting portions) which are not permeable to light, electric signals are formed, information is stored in the information storing device (7) and arranged in the information arrangement program board (8) to form a document, and then the document is printed. According to the blackboard capable of achieving scanning, the time of students is saved, the teacher listening efficiency of the students is improved, reviewing can be directly performed after a class, and the learning effect is greatly improved.

The invention provides an equipment control method, device and system. The method is applied to the cloud platform of the equipment control system. The equipment control system comprises an information acquisition module and multiple sets of controllable equipment. The cloud platform is connected with the controllable equipment and the information acquisition module in a communication way. The method comprises the steps that the multimedia file transmitted by the information acquisition module is received within the preset period of time; the identity information of the object to be analyzed is determined according to multiple image frames in the multimedia file and the preset object identity feature library, and the corresponding voice text of the object to be analyzed is determined according to the voice signal in the multimedia file; word segmentation is performed on the voice text so as to obtain multiple keywords in the voice text; the position area corresponding to the identity information is searched in the preset object position relation table; and the controllable equipment corresponding to the position area is controlled to work according to the keywords so that the technical problem of low attending efficiency of the student in the prior art can be alleviated and the technical effect of enhancing the attending efficiency of the student can be achieved.

The invention relates to a multifunctional student chair which comprises a base as well as a seat assembly and a desk assembly which are respectively fixed above the base, and the seat assembly and the desk assembly are arranged at an interval; the seat assembly comprises a seat frame used for being fixed to the base and a seat back rotationally installed on the seat frame, and an angle adjusting structure is arranged between the seat back and the seat frame and used for adjusting the relative angle between the seat back and the seat frame. The desk assembly comprises a desk frame used for being fixed to the base and a desk table fixed to the upper portion of the desk frame, a baffle is rotationally erected on the side, away from the seat assembly, of the desk frame, a limiting column used for positioning the baffle is arranged on the inner side of the desk frame, and when the baffle rotates to abut against the limiting column, the baffle is arranged upwards. The multifunctional student chair has the effect of improving the noon break quality of students.

The invention discloses an electronic information technology specialty comprehensive practical training teaching device which comprises a practical training platform and a function board, baffles are symmetrically arranged on the upper surface of the practical training platform, a long-strip-shaped opening is formed in the position, located between the two baffles, of the upper surface of the practical training platform, and sliding cylinders are fixedly installed on the opposite faces of the two baffles. Sliding rods are fixedly installed at the two ends of the function board, the two sliding barrels are slidably connected to the two sliding rods respectively, the function board penetrates through the long-strip-shaped opening and is movably connected with the long-strip-shaped opening, and a plurality of different electronic circuit training teaching modules are arranged on one board face of the function board. The middle position of the upper part of the other board surface of the function board is fixedly installed with a deceleration motor. Part of the function board can be lowered to the lower portion of the practical training platform, so that when a teacher gives a lesson, the lecture attending efficiency of students is improved, meanwhile, when the students operate the electronic circuit training teaching module, the students can be closer to the electronic circuit training teaching module, and the operation is not blocked by the practical training platform.

The invention particularly relates to a demonstration device facilitating the teaching of high school mathematics, which belongs to the technical field of teaching devices. The problems of the prior art that the specific demonstration direction is not explicitly indicated to the device, the demonstration device is single in structure and can only demonstrate one type of demonstration and the demonstration process is complex, and the effect is not obvious can be solved. The following scheme is provided and comprises a base. A counter bore is formed in the middle of the top of the base, and a bearing is welded to the inner wall of the counter bore. A connecting rod is welded to the inner wall of the bearing, and the top of the connecting rod is connected with a demonstration frame through abolt. A function demonstration groove is formed at the top of the outer wall of one side of the demonstration frame. According to the invention, the function part of high school mathematics can be demonstrated, and the teaching efficiency of teachers is improved; the abstract concept is changed into concrete object, so that the teaching of the teacher becomes easier; the brightness of the device can be increased, and the teacher can conveniently write the content of the demonstration during explanation; through demonstration and writing, the demonstration effect of the device is improved.

The embodiment of the invention relates to a teaching system. The system comprises a class system, a cloud school system and a mobile terminal; the class system is connected with the cloud school system; the class system is used for carrying out digital pen connection or disconnection processing, student sign-in processing, class teaching processing and class practice processing; the cloud school system is connected with the mobile terminal; the cloud school system is used for processing student sign-in business, class teaching business and class practice business; the cloud school system is also used for processing the teaching query service of the mobile terminal; and the mobile terminal is used for sending teaching query service message data to the cloud school system and carrying out query result display processing on query feedback data sent back by the cloud school system. Through the system, the expensive intelligent terminal does not need to be configured for each student, so that the intelligent reconstruction cost of a classroom or a classroom can be greatly reduced; meanwhile, it can be guaranteed that the students have enough writing time, the students can be helped to concentrate attention, and the class attending efficiency is improved.