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 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 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 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 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 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 provides a method and device for adaptively controlling a multimedia blackboard, a medium and electronic equipment. According to the invention, the method comprises the steps: establishing a three-dimensional model of a target space, acquiring the distribution area of the students in the classroom through the adaptive algorithm on the basis of the three-dimensional model, and automatically controlling the angle of the multimedia blackboard, thereby guaranteeing that the students in class can watch the multimedia blackboard well, the fatigue feeling of the students in class is reduced, and the efficiency of listening to the class is improved.

The invention provides a method and device for adjusting a multimedia blackboard, a medium and electronic equipment. According to the invention, the three-dimensional model of the target space is established, and the multimedia blackboard is adjusted through the three-dimensional model and the delimited distribution positions of the students in the classroom, thereby guaranteeing that the studentsin the classroom can watch the multimedia blackboard better, reducing the fatigue of the students in the classroom, and facilitating the improvement of the efficiency of listening to the class.

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.

The invention provides a full-automatic writing blackboard. The full-automatic writing blackboard comprises at least one blackboard body and a frame for hanging the blackboard bodies; rotating shafts are arranged above the frame; the number of the rotating shafts is the same with that of the blackboard bodies; each rotating shaft is parallel to transverse edges of the frame; the blackboard bodies are hung on the rotating shafts through ropes; one end of each rope can be twined on the corresponding rotating shaft along with rotation of the rotating shaft; travel switches which are used for stopping the blackboard bodies from moving further are respectively arranged on inner sides of the upper and lower transverse edges of the frame; an erasing device for erasing handwritings on the blackboard bodies is arranged on the bottom of the frame; a camera capable of shooting image information on the blackboard bodies is arranged in front of the frame and is connected with a computer; and the information shot by using the camera is uploaded to an internet disk by the computer. The full-automatic writing blackboard is not required to manually move or be manually erased; lots of time is saved for teachers; and the full-automatic writing blackboard can be stopped at an optional position, and interference is reduced.

The invention discloses a classroom multimedia system, and belongs to the field of teaching equipment. The classroom multimedia system is composed of a multimedia computer system, a projection whiteboard, a projector and the like, wherein a multimedia computer supports multiple displays, and desktops can be expanded to the projector; demonstration software runs demonstrator views, and the projector runs viewer views; and a teacher plays a courseware, and a student responds with blackboard-writing, and then the teacher can evaluate the response of the student, and the process is carried out circularly and repeatedly for continuous advancing. The student uses the blackboard writing, and the teacher uses the electronic whiteboard, so that cooperative tasks can be performed based on independent technologies, and compact interaction is achieved; and under the support of a wireless transmission technology, a new situation of multimedia teaching is opened up.