CN114063851A - Exquisite class video recording sight guiding system based on local area network - Google Patents
Exquisite class video recording sight guiding system based on local area network Download PDFInfo
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Abstract
The invention discloses a fine class video recording sight guiding system based on a local area network, which comprises a courseware computer, a background control computer and a plurality of terminal display computers, wherein the courseware computer, the terminal display computers and the background control computer are connected to form the local area network; when the courseware computer plays courseware, the background control computer receives courseware signals transmitted by the courseware computer, the selected state and the non-selected state are switched by clicking computer icons on the sight line guide software control end operation interface of the background control computer, when a certain computer icon is in the selected state, the courseware signals can be displayed on the terminal display computer corresponding to the computer icon in the selected state, so that the sight line is not always concentrated at a certain position in the course of teaching by a teacher, the sight line can naturally move, the displayed course video pictures are more natural, the courseware captions cannot be found to be watched, and the teaching effect is improved.
Description
Technical Field
The invention relates to the technical field of recording and broadcasting equipment, in particular to a fine class video recording sight guiding system based on a local area network.
Background
Along with the rapid development of online education, competitive products course, admire class etc. online course to emerge in a large number in recent years, consequently need make a large amount of video courses, in most video courses, the teacher need appear in the video picture, be used for increasing teacher and student's sense of communication, improve teaching effect, but at present because the teacher generally lacks the training of lecturing in the front of the camera, the recording scene of video course is most to have no student simultaneously, so inevitable caused some general defects of video course:
1. most of the recording sites of the competitive lessons are not provided with students, many teachers are not used to the scene very much, the feeling of the lectures cannot be found, and people often feel that hands and feet are unfortunate and the eyes are dull without knowing where the users should look at the scene, so that the recording effect is poor.
2. The exquisite class is recorded and is taken lessons different at ordinary times, needs the content refining, and the lecture is smooth, so when recording, so a lot of lecture mr can be in opposite installation a screen that shows the courseware subtitle, play the effect of suggestion lecture content, but this kind of mode, because the position of screen is fixed unchangeable during, give lessons at the mr in-process, often watch a direction always, the picture effect seems unnatural, spectator sees the mr very easily and is looking for the prompter subtitle, influences the teaching effect.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a local area network-based fine lesson video recording sight guiding system capable of guiding the sight direction of a teacher, which can guide the teacher in teaching to keep the natural sight communication state and improve the teaching quality of fine lesson video recording.
In order to solve the technical problems, the technical scheme of the invention is as follows: the fine class video recording sight guiding system based on the local area network comprises a courseware computer, a background control computer and a plurality of terminal display computers, wherein the courseware computer, the terminal display computers and the background control computer are connected through a router or a switch to form the local area network;
the courseware computer is used for generating courseware signals;
the terminal display computer is arranged in a class recording classroom and used for displaying courseware signals, and a display screen of the terminal display computer is arranged towards a teaching teacher;
the background control computer is used for receiving courseware signals from the courseware computer and controlling the terminal display computer to display whether the courseware signals or not;
sight line guiding software is respectively installed on each terminal display computer, each courseware computer and each background control computer, the sight line guiding software is divided into a sight line guiding software control end and a sight line guiding software controlled end, the sight line guiding software control end is installed on each background control computer, and the sight line guiding software controlled ends are installed on the courseware computers and the terminal display computers; computer icons which correspond to the terminal display computers one to one are arranged on an operation interface of the sight line guide software control end, each computer icon has two states of selection and non-selection, and only one computer icon is in the selected state at the same time;
when the courseware computer plays courseware, the background control computer receives courseware signals transmitted by the courseware computer, the selected state and the non-selected state are switched by clicking computer icons on an operation interface of a sight guide software control end of the background control computer, and when one computer icon is in the selected state, the courseware signals can be displayed on the terminal display computer corresponding to the computer icon in the selected state.
Preferably, the sight line guiding system further comprises a darkroom for placing a camera, the darkroom is positioned behind all the terminal display computers, one surface of the darkroom facing the terminal display computers is provided with a light-transmitting display, the light-transmitting display is connected with one of the terminal display computers and is composed of an LED array, the LED array comprises a structural frame and LED units, the structural frame is used as a supporting structure, the LED unit is fixed on the structure frame, a light hole is arranged between the structure frame and the LED unit, light can be transmitted from one side of the light-transmitting display to the other side through the light hole, the LED unit consists of an LED lamp bead and a reflecting shade, the LED lamp bead is arranged in the reflecting shade, the inside of reflector is provided with reflecting material, the outside of reflector and the structure frame all is equipped with extinction material.
As a preferred technical scheme, video files are respectively prestored on each terminal display computer, a media playing control area is further arranged on an operation interface of a sight line guide software control end of the background control computer, a video control key for controlling the terminal display computer to play the video files is arranged in the media playing control area, the video control key comprises a playing key and a stopping key, and the playing key and the stopping key respectively control the playing or stop the playing of the video files stored on the terminal display computer; and a file selection key for switching video files is also arranged in the media playing control area.
As a preferred technical scheme, a classroom atmosphere selection area is further arranged on an operation interface of a sight line guide software control end of the background control computer, an atmosphere control key is arranged in the classroom atmosphere selection area, the atmosphere control key comprises a serious listening and speaking key, a smiling key, a discussion key and a clapping key, and a plurality of video files corresponding to the serious listening and speaking key, the smiling key, the discussion key and the clapping key are contained in video files prestored on the terminal display computer; and a file selection key for switching video files is also arranged in the media playing control area.
As a preferred technical scheme, when the courseware signal is switched and displayed between two terminal display computers in a selected state and a non-selected state, a delay disappearance time period is set on the terminal display computer in the selected state of the courseware signal, and the delay disappearance time period is set to be 1-5 s; and in the delayed disappearance time period, the courseware signal received by the sight line guiding software control end of the background control computer is continuously displayed on the terminal display computer in the current selected state and is also displayed on the next selected terminal display computer, so that the courseware signal can be simultaneously displayed by the two terminal display computers in the delayed disappearance time period.
As a preferred technical scheme, an operation interface of a sight line guide software control end of the background control computer is also provided with a switching effect area, an effect switching key for controlling the courseware signal playing effect is arranged in the switching effect area, and the effect switching key comprises a simultaneous display key, a fly-out and fly-in key and a hard cutting key;
when the simultaneous display key is in a pressed state, the courseware signal can be continuously displayed on the terminal display computer in the current selected state in the delay disappearance time period, and the courseware signal is displayed on the next selected terminal display computer at the same time, so that the courseware signal can be simultaneously displayed by the two terminal display computers in the delay disappearance time period;
when the fly-out and fly-in key is in a pressed state, the courseware signal can move out in a fly-out effect mode on the terminal display computer in the current selected state within the delay disappearance time period, and meanwhile, the courseware signal enters in a fly-in effect mode on the next selected terminal display computer;
when the hard-cut key is in a pressed state, the delay disappearance time period returns to zero, when the terminal display computer is switched, the courseware signal directly disappears on the terminal display computer in the current selected state, and meanwhile, the courseware signal is displayed on the next selected terminal display computer.
As a preferred technical scheme, the background control computer further comprises a rotation angle face recognition module for detecting a rotation angle of the head of a teacher, a face recognition camera is mounted on the light-transmitting display, and the face recognition camera is in signal connection with the rotation angle face recognition module; the face recognition camera is used for recording a video for a teacher and generating teacher video signals, the rotation angle face recognition module receives the teacher video signals transmitted by the face recognition camera and detects and recognizes the teacher head rotation angle signals, the background control computer stores teacher head rotation angle data corresponding to each terminal display computer, and the background control computer controls whether the corresponding terminal display computer displays the courseware signals or not according to the teacher head rotation angle signals;
the background control computer is also provided with an active and passive switching key for switching an active guide mode and a passive tracking mode, when the active and passive switching key is pressed, the background control computer can be switched between the active guide mode and the passive tracking mode, and when the background control computer is in the active guide mode, the switching display of courseware signals is controlled by clicking a computer icon on an operation interface of the sight line guide software control end; when the background control computer is in the passive tracking mode, the background control computer receives a teacher head rotation angle signal transmitted by the rotation angle face recognition module to control the switching display of the courseware signal. Due to the adoption of the technical scheme, the invention has the beneficial effects that: in the teaching process, backstage personnel click the computer icon to control the courseware signals to be displayed on different terminal display computers in a switching mode, in the courseware signal switching display process, the sight of a teacher moves along with the courseware signals, so that in the teaching process of the teacher cannot be always concentrated at a certain position, the sight can move naturally, the displayed video pictures of the lessons are more natural, the sight cannot be found to watch the captions of the courseware, the teaching effect is improved, in the passive switching mode, the teacher can shift the sight direction according to own habits, when the sight direction is shifted, the terminal display computers for displaying the courseware are also switched accordingly, and the teacher can always watch the courseware signals in the independent shifting process. The sight guiding system is mainly used for the situation that a teacher needs to face a classmate lecture, and does not influence the planar content of a blackboard or a podium which is watched and indicated by the lecture teacher.
Drawings
The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein:
FIG. 1 is a top view of an exemplary embodiment of the present invention;
FIG. 2 is a layout diagram of a gaze guidance software control end according to an embodiment of the invention;
FIG. 3 is a schematic structural diagram of a light-transmissive display according to an embodiment of the invention;
FIG. 4 is a schematic structural diagram of an LED unit according to an embodiment of the present invention;
in the figure: 100-courseware computer; 200-background control computer; 300-terminal display computer; 400-darkroom; 500-a camera; 600-a light transmissive display; 601-a structure frame; 602-an LED unit; 602 a-an LED lamp bead; 602 b-a reflector; 603-light hole.
Detailed Description
The invention is further illustrated below with reference to the figures and examples. In the following detailed description, certain exemplary embodiments of the present invention are described by way of illustration only. Needless to say, a person skilled in the art realizes that the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.
As shown in fig. 1 and 2, the fine class video line of sight guidance system based on the local area network includes a courseware computer 100, a background control computer 200 and a plurality of terminal display computers 300, wherein the courseware computer 100, the terminal display computers 300 and the background control computer 200 are connected through a router or a switch to form the local area network, the background control computer 200 serves as a server and is in wireless or wired connection with each of the terminal display computers 300 and the courseware computer 100, and the courseware computer 100 and the plurality of terminal display computers 300 serve as clients.
The courseware computer 100 is used for generating courseware signals, when the system is used, the courseware signals generated in the courseware computer 100 are used for playing courseware for teachers, the courseware signals represent courseware subtitles for the teachers to carry out word extraction, and the courseware computer can be a computer used for playing the courseware for students to watch and can also be a computer specially used for playing the word extraction courseware.
The terminal display computers 300 are arranged in a class recording classroom and used for displaying courseware signals, display screens of the terminal display computers 300 are arranged towards a teaching teacher, the terminal display computers 300 are arranged in an array mode, the arrangement position of each terminal display computer 300 can be the same as the distribution position of a desk in the classroom and is divided into a plurality of rows and a plurality of columns, so that the state of a teacher facing the same school hour is similar to the state of the teacher facing the same school hour at ordinary times during teaching, but the height of each row of the terminal display computers 300 is ensured to be gradually increased, sight shielding between the terminal display computers 300 is avoided, generally, the number of rows and columns of the terminal display computers 300 does not need to be too large, and the number of each row is not necessarily equal.
The background control computer 200 is configured to receive the courseware signal from the courseware computer 100, and control the terminal display computer 300 to determine whether to display the courseware signal; sight line guiding software is respectively installed on each terminal display computer 300, the courseware computer and the background control computer 200, the sight line guiding software is divided into a sight line guiding software control end and a sight line guiding software controlled end, the sight line guiding software control end is installed on the background control computer, and the sight line guiding software control ends are installed on the courseware computer and each terminal display computer; computer icons which correspond to the terminal display computers 300 one to one are arranged on an operation interface of the sight line guide software control end, each computer icon has two states of selection and non-selection, and only one computer icon is in the selected state at the same time. The selected state is colored, the unselected state is gray, and the self-defined name information such as names, IP addresses, login accounts and the like corresponding to the terminal display computers 300 one by one is marked below the computer icons. And a courseware computer 100 icon corresponding to the courseware computer 100 is further arranged on the operation interface of the sight guiding software control end.
When the courseware computer 100 plays courseware, the background control computer 200 receives courseware signals transmitted from the courseware computer 100, background operators can click computer icons on an operation interface of a sight line guide software control end of the background control computer 200 to switch between a selected state and a non-selected state, when a certain computer icon is in the selected state, the courseware signals can be displayed on the terminal display computer 300 corresponding to the computer icon in the selected state, for example, referring to fig. 2, when the computer icon corresponding to the computer 22 is clicked, the courseware signals can be displayed on the computer 22 to provide subject word courseware captions for a teacher, and when the terminal display computer 300 corresponding to other computers does not display the courseware signals, then the computer icon corresponding to the computer 34 is clicked, the courseware signals can be displayed on the computer 34, the courseware signals are not displayed on the terminal display computers 300 corresponding to other computers including the No. 22 computer. The client is controlled by the server, which belongs to the prior art and is not described herein again. If the network is normal, the delay of the courseware signal on the synchronous picture of each terminal display computer 300 is within 1 s.
The working principle of the embodiment is as follows:
in the course of recording the exquisite course, a teacher stands on a platform and gives a lesson to a blackboard or an electronic display board on the platform, in the course of giving the lesson to the teacher, a courseware signal generated on the courseware computer 100 is displayed on the terminal display computer 300 and is used for providing a prompted courseware subtitle for the teacher, the courseware subtitle is not necessarily the same as the content of the lecture courseware seen by students, so that the computer used by the teacher needs two computers under the condition that the two courseware are different; in the teaching process, backstage personnel click the computer icon to control the courseware signals to be displayed on different terminal display computers 300 in a switching mode, in the courseware signal switching display process, the sight of a teacher moves along with the courseware signals, so that in the teaching process of the teacher, the sight cannot be always concentrated at a certain position, the sight can naturally move, the displayed video pictures of the course are more natural, the sight cannot be found to be watching courseware subtitles, and the teaching effect is improved. The sight guiding system is mainly used for the situation that a teacher needs to face a classmate lecture, and does not influence the planar content of a blackboard or a podium which is watched and indicated by the lecture teacher.
Referring to fig. 3 and 4, the sight guiding system further includes a darkroom 400 for placing the camera 500, the darkroom 400 is located behind all the terminal display computers 300, a transparent display 600 is disposed on a side of the darkroom 400 facing the terminal display computers 300, the transparent display 600 is connected to one of the terminal display computers 300, and an area of the transparent display 600 corresponds to an area of a front side of the darkroom 400, so as to ensure that a teacher on a platform can be photographed through the transparent display 600 when the camera 500 is placed in the darkroom 400. Light-transmitting display 600 comprises the LED array, the LED array includes structure frame 601 and LED unit 602, structure frame 601 is as bearing structure, LED unit 602 is fixed on structure frame 601, structure frame 601 with be provided with light trap 603 between the LED unit 602, light passes through light trap 603 can by one side transmission to the opposite side of light-transmitting display 600, LED unit 602 comprises LED lamp pearl 602a and reflector 602b, LED lamp pearl 602a is installed in reflector 602b, the inside of reflector 602b is provided with reflecting material, the outside of reflector 602b and structure frame 601 all is equipped with the material that absorbs light. In the course of lecturing, the teacher needs to face the lens most of the time, so the picture has better interaction with the flow, however, this is one of the main factors that most of the teachers are nervous in the course of recording, and can not give play to the normal level, therefore, the camera 500 is placed behind the transparent display 600, so that the teacher can avoid seeing the camera 500 in the course of recording, the nervous feeling in the course of recording is reduced, meanwhile, the courseware signal displayed by the terminal display computer 300 can be seen, the quality of recording can be effectively improved, and the camera 500 placed in the dark room 400 can shoot the teacher in the direction of the platform through the transparent hole 603; the light transmittance of the light-transmissive display 600 can reach more than 70%, and the imaging effect of the camera 500 is not substantially affected.
In practical use, the installation height of the camera 500 is higher than the topmost end of each terminal display computer 300, or is located between two displays, so as to avoid the display blocking the recording range of the camera 500.
Video files are respectively prestored in each terminal display computer 300, a media playing control area is further arranged on an operation interface of a sight line guide software control end of the background control computer 200, a video control key for controlling the terminal display computer 300 to play the video files is arranged in the media playing control area, the video control key comprises a playing key and a stopping key, and the playing key and the stopping key respectively control the video files stored on the terminal display computer 300 to be played or stopped to be played; the playing key and the stopping key are switched to be in a pressed state, when the playing key is in the pressed state, the terminal display computer 300 in a non-selected state plays a corresponding pre-stored video file, namely, some videos can be played on the terminal display computer 300 which does not display the courseware signal; when the play key is in a pressed state, the video file played on the terminal display computer 300 in a non-selected state stops playing; the media playing control area is also provided with a file selection key for switching video files, so that different video files can be selected.
The operating interface of the sight line guide software control end of the background control computer 200 is further provided with a classroom atmosphere selection area, an atmosphere control key is arranged in the classroom atmosphere selection area, the atmosphere control key comprises a serious listening and speaking key, a smiling key, a discussion key and a clapping key, a plurality of video files corresponding to the serious listening and speaking key, the smiling key, the discussion key and the clapping key are contained in a video folder pre-stored on the terminal display computer 300, and when a certain atmosphere control key is pressed, the video file is switched to play the same type of atmosphere in the current folder.
Each of the hard disks of the terminal display computers 300 stores therein a video file, the hard disk includes a primary folder, the primary folder includes a plurality of secondary folders thereunder, such as college student secondary folders, middle school student secondary folders and primary school student secondary folders, each secondary folder comprises a plurality of tertiary folders, video files of serious class, video files of discussion, video files of smile and video files of drumbeats are respectively stored in the three-level folders, the video name and the storage directory in each terminal display computer 300 are consistent, but the content of the video file with the same name on the display computer 300 is different at different terminals, thus, the sight line guide software control end can play different video contents at the same time, and each terminal displays the close-up shots of different classmates displayed on the computer 300, so that the class recording classroom has the feeling of real classroom.
When the terminal display computer 300 is switched to display the courseware signal, the window for playing the video of the terminal display computer 300 is switched to background playing, and when the terminal display computer 300 which does not display the courseware signal is switched to, the video playing window is restored to foreground playing.
Before playing the video, the file to be played is selected by clicking the file selection key, and in the playing process, the corresponding key is pressed in the classroom atmosphere selection area, so that the file of the same type as the indication of the key can be searched and played in the currently played folder, and if the discussion key is pressed, the discussed picture and sound can be played.
When the courseware signal is switched and displayed between the two terminal display computers 300 in the selected state and the non-selected state, a delay disappearance time period is set on the terminal display computer 300 in the selected state, and the delay disappearance time period is set to be 1-5 s; in the delayed disappearance time period, the courseware signal received by the sight line guidance software control end of the background control computer 200 will continue to be displayed on the terminal display computer 300 in the currently selected state, and at the same time, the courseware signal will be displayed on the next selected terminal display computer 300, so that the courseware signal can be simultaneously displayed by the two terminal display computers 300 in the delayed disappearance time period.
An operation interface of the sight line guide software control end of the background control computer 200 is also provided with a switching effect area, an effect switching key for controlling the courseware signal playing effect is arranged in the switching effect area, and the effect switching key comprises a simultaneous display key, a fly-out fly-in key and a hard cutting key;
when the simultaneous display key is pressed, the courseware signal is continuously displayed on the terminal display computer 300 in the current selected state in the delay disappearance time period, and the courseware signal is displayed on the next selected terminal display computer 300 at the same time, so that the courseware signal can be simultaneously displayed on the two terminal display computers 300 in the delay disappearance time period;
when the fly-out and fly-in key is in a pressed state, the courseware signal will move out on the terminal display computer 300 in the current selected state in a fly-out effect mode within the delay disappearance time period, and meanwhile, the courseware signal enters on the next selected terminal display computer 300 in a fly-in effect;
when the hard-cut key is in a pressed state, the delay disappearance time period returns to zero, when the terminal display computer is switched, the courseware signal directly disappears on the terminal display computer 300 in the current selected state, and simultaneously the courseware signal is displayed on the next selected terminal display computer 300.
The back-end control computer 200 further comprises a rotation angle face recognition module for detecting a rotation angle of the head of a teacher, a face recognition camera is mounted on the light-transmitting display 600, the mounting position of the face recognition camera can be arranged at the upper part of the light-transmitting display 600, and the face recognition camera is in signal connection with the rotation angle face recognition module; the face recognition camera is used for recording a video of a teacher and generating a teacher video signal, the rotation angle face recognition module receives the teacher video signal transmitted by the face recognition camera and detects and recognizes the teacher head rotation angle signal, the background control computer 200 stores teacher head rotation angle data corresponding to each terminal display computer, and the background control computer controls whether the corresponding terminal display computer 300 displays the courseware signal or not according to the teacher head rotation angle signal;
the background control computer 200 is further provided with an active and passive switching key for switching an active guidance mode and a passive tracking mode, when the active and passive switching key is pressed, the background control computer 200 can be switched between the active guidance mode and the passive tracking mode, and when the background control computer 200 is in the active guidance mode, the switching display of courseware signals is controlled by clicking a computer icon on an operation interface of the sight guidance software control end; when the background control computer 200 is in the passive tracking mode, the background control computer 200 receives the teacher head rotation angle signal transmitted from the rotation angle face recognition module, compares the teacher head rotation angle signal with the prestored teacher head rotation angle data corresponding to each terminal display computer 300, finds the terminal display computer 300 closest to the teacher head rotation angle signal, and then controls the terminal display computer 300 to display courseware signals.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. Fine lesson video recording sight guide system based on LAN, its characterized in that: the system comprises a courseware computer, a background control computer and a plurality of terminal display computers, wherein the courseware computer, the terminal display computers and the background control computer are connected through a router or a switch to form a local area network;
the courseware computer is used for generating courseware signals;
the terminal display computer is arranged in a class recording classroom and used for displaying courseware signals, and a display screen of the terminal display computer is arranged towards a teaching teacher;
the background control computer is used for receiving courseware signals from the courseware computer and controlling the terminal display computer to display whether the courseware signals or not;
sight line guiding software is respectively installed on each terminal display computer, each courseware computer and each background control computer, the sight line guiding software is divided into a sight line guiding software control end and a sight line guiding software controlled end, the sight line guiding software control end is installed on each background control computer, and the sight line guiding software controlled ends are installed on the courseware computers and the terminal display computers; computer icons which correspond to the terminal display computers one to one are arranged on an operation interface of the sight line guide software control end, each computer icon has two states of selection and non-selection, and only one computer icon is in the selected state at the same time;
when the courseware computer plays courseware, the background control computer receives courseware signals transmitted by the courseware computer, the selected state and the non-selected state are switched by clicking computer icons on an operation interface of a sight guide software control end of the background control computer, and when one computer icon is in the selected state, the courseware signals can be displayed on the terminal display computer corresponding to the computer icon in the selected state.
2. The local area network-based competitive lesson video visual guidance system of claim 1, wherein: the sight line guiding system also comprises a darkroom for placing a camera, the darkroom is positioned behind all the terminal display computers, a light-transmitting display is arranged on one side of the darkroom facing the terminal display computer and is connected with one of the terminal display computers, the light transmissive display is formed by an LED array comprising a structural frame and LED units, the structure frame is used as a supporting structure, the LED unit is fixed on the structure frame, a light hole is arranged between the structure frame and the LED unit, light can be transmitted from one side of the light-transmitting display to the other side through the light hole, the LED unit consists of an LED lamp bead and a reflecting shade, the LED lamp bead is arranged in the reflecting shade, the inside of reflector is provided with reflecting material, the outside of reflector and the structure frame all is equipped with extinction material.
3. The local area network-based competitive lesson video visual guidance system of claim 1, wherein: video files are respectively prestored on each terminal display computer, a media playing control area is further arranged on an operation interface of a sight line guide software control end of the background control computer, video control keys for controlling the terminal display computers to play the video files are arranged in the media playing control area, each video control key comprises a playing key and a stopping key, and the playing keys and the stopping keys respectively control the playing or stop the playing of the video files stored on the terminal display computers; and a file selection key for switching video files is also arranged in the media playing control area.
4. The local area network-based competitive lesson video sight guiding system of claim 3, wherein: the background control computer is characterized in that a classroom atmosphere selection area is further arranged on an operation interface of the sight line guide software control end of the background control computer, an atmosphere control key is arranged in the classroom atmosphere selection area and comprises a serious listening and speaking key, a smiling key, a discussion key and a clapping key, and a plurality of video files corresponding to the serious listening and speaking key, the smiling key, the discussion key and the clapping key are contained in video files prestored on the terminal display computer.
5. The local area network-based competitive lesson video visual guidance system of claim 1, wherein: when the courseware signal is switched and displayed between the two terminal display computers in the selected state and the non-selected state, a delay disappearance time period is set on the terminal display computer in the selected state of the courseware signal, and the delay disappearance time period is set to be 1-5 s; and in the delayed disappearance time period, the courseware signal received by the sight line guiding software control end of the background control computer is continuously displayed on the terminal display computer in the current selected state and is also displayed on the next selected terminal display computer, so that the courseware signal can be simultaneously displayed by the two terminal display computers in the delayed disappearance time period.
6. The local area network-based competitive lesson video visual guidance system of claim 5, wherein: an operation interface of a sight line guide software control end of the background control computer is also provided with a switching effect area, an effect switching key for controlling the courseware signal playing effect is arranged in the switching effect area, and the effect switching key comprises a simultaneous display key, a fly-out fly-in key and a hard cutting key;
when the simultaneous display key is in a pressed state, the courseware signal can be continuously displayed on the terminal display computer in the current selected state in the delay disappearance time period, and the courseware signal is displayed on the next selected terminal display computer at the same time, so that the courseware signal can be simultaneously displayed by the two terminal display computers in the delay disappearance time period;
when the fly-out and fly-in key is in a pressed state, the courseware signal can move out in a fly-out effect mode on the terminal display computer in the current selected state within the delay disappearance time period, and meanwhile, the courseware signal enters in a fly-in effect mode on the next selected terminal display computer;
when the hard-switch key is in a pressed state, the delay disappearance time period returns to zero, when the terminal display computer is switched, the courseware signal directly disappears on the terminal display computer in the current selected state, and meanwhile, the courseware signal is displayed on the next selected terminal display computer.
7. The local area network-based competitive lesson video visual guidance system of claim 2, wherein: the back-stage control computer also comprises a rotation angle face recognition module for detecting the rotation angle of the head of a teacher, a face recognition camera is mounted on the light-transmitting display, and the face recognition camera is in signal connection with the rotation angle face recognition module; the face recognition camera is used for recording a video for a teacher and generating teacher video signals, the rotation angle face recognition module receives the teacher video signals transmitted by the face recognition camera and detects and recognizes the teacher head rotation angle signals, the background control computer stores teacher head rotation angle data corresponding to each terminal display computer, and the background control computer controls whether the corresponding terminal display computer displays the courseware signals or not according to the teacher head rotation angle signals;
the background control computer is also provided with an active and passive switching key for switching an active guide mode and a passive tracking mode, when the active and passive switching key is pressed, the background control computer can be switched between the active guide mode and the passive tracking mode, and when the background control computer is in the active guide mode, the switching display of courseware signals is controlled by clicking a computer icon on an operation interface of the sight line guide software control end; when the background control computer is in the passive tracking mode, the background control computer receives a teacher head rotation angle signal transmitted by the rotation angle face recognition module to control the switching display of the courseware signal.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111345576.8A CN114063851A (en) | 2021-11-15 | 2021-11-15 | Exquisite class video recording sight guiding system based on local area network |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111345576.8A CN114063851A (en) | 2021-11-15 | 2021-11-15 | Exquisite class video recording sight guiding system based on local area network |
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| CN114063851A true CN114063851A (en) | 2022-02-18 |
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| CN202111345576.8A Withdrawn CN114063851A (en) | 2021-11-15 | 2021-11-15 | Exquisite class video recording sight guiding system based on local area network |
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