CN111064883A - Audio and video teaching recording and playing system and control method thereof - Google Patents
Audio and video teaching recording and playing system and control method thereof Download PDFInfo
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- CN111064883A CN111064883A CN201911204650.7A CN201911204650A CN111064883A CN 111064883 A CN111064883 A CN 111064883A CN 201911204650 A CN201911204650 A CN 201911204650A CN 111064883 A CN111064883 A CN 111064883A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/698—Control of cameras or camera modules for achieving an enlarged field of view, e.g. panoramic image capture
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/61—Control of cameras or camera modules based on recognised objects
- H04N23/611—Control of cameras or camera modules based on recognised objects where the recognised objects include parts of the human body
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/268—Signal distribution or switching
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
Abstract
The invention discloses an audio and video teaching recording and broadcasting system and a control method thereof, wherein the system comprises: the first camera equipment is used for carrying out panoramic shooting on a first person to be detected; the second camera equipment is used for shooting the first person to be detected in close-up; the third camera equipment is used for carrying out panoramic shooting on the first person to be detected; the fourth camera equipment is used for carrying out close-up shooting on the second person to be detected when the second person to be detected stands; the first image pickup apparatus, the second image pickup apparatus, the third image pickup apparatus or the fourth image pickup apparatus is switched; and the control module is used for controlling the switching module to switch the first camera shooting device, the second camera shooting device, the third camera shooting device and the fourth camera shooting device from one another. The invention can avoid using a single camera to shoot both the panorama and the close-up of the student, and the displayed video picture is not beautiful enough due to the occurrence of redundant pictures in the switching process of the panorama shooting and the close-up shooting, thereby enhancing the visual watching effect of the close-up shooting student.
Description
Technical Field
The invention relates to the technical field of audio and video recording and broadcasting, in particular to an audio and video teaching recording and broadcasting system and a control method thereof.
Background
With the rapid development of the internet of things technology, multimedia audio and video teaching is more popular, and under the environments of schools, training structures and networked teaching, an audio and video teaching recording and broadcasting system is formed by audio and video equipment and used for facilitating interaction between teachers and students in classroom teaching, so that classroom teaching is more colorful.
At present, in audio and video teaching system, video image information in classroom environment is usually collected by using a video camera, and then audio and video recorded image information is formed by the video camera and audio information collected by an audio collecting device, so that online education or on-site teaching can be realized, because in classroom teaching, in order to capture teaching interaction of students participating in questions asked by teachers, a camera is usually used for both close-up shooting of students and panoramic shooting of surrounding environment of an area where students are located, obviously, the camera needs to be switched between close-up shooting and panoramic shooting, for example: when this camera caught certain student and stands, this camera often carries out panorama shooting earlier, then switches to the feature scene in following panorama shooting scene, and at the in-process that panorama scene and feature scene switched, redundant picture also can be caught by this camera, influences the visual effect of watching of close-up shooting student.
Disclosure of Invention
In view of this, an embodiment of the present invention provides an audio/video teaching recording and playing system, so as to solve the problem that when a camera is used to perform close-up shooting on a student, the camera often performs panoramic shooting first and then switches from a panoramic shooting scene to a close-up scene, and during the switching process between the panoramic scene and the close-up scene, redundant pictures are captured by the camera, which affects the visual viewing effect of the close-up shooting student.
According to a first aspect, an embodiment of the present invention provides an audio/video teaching recording and playing system, including:
the first camera device is arranged in a classroom and used for carrying out panoramic shooting on a teacher and/or a student when the teacher and/or the student are located in a platform area;
the second image pickup device is arranged in a classroom and used for carrying out close-up shooting on a teacher when the teacher gives a teaching to indicate limb and/or expression actions;
the third camera device is arranged in a classroom and used for carrying out panoramic shooting on teachers and students in a student area when the teachers are located in the student area;
a fourth image pickup apparatus provided in a classroom for individually performing close-up shooting on a student while the student stands;
a switching module; the first image pickup device, the second image pickup device, the third image pickup device and the fourth image pickup device are respectively connected with the first image pickup device, the second image pickup device, the third image pickup device and the fourth image pickup device for switching the first image pickup device, the second image pickup device, the third image pickup device and the fourth image pickup device;
and the control module is respectively connected with the switching module and is used for controlling the switching module to switch the first camera shooting device, the second camera shooting device, the third camera shooting device or the fourth camera shooting device mutually.
With reference to the first aspect, in a first implementation manner of the first aspect, the audio/video teaching recording and playing system in the embodiment of the present invention further includes: and the recording and broadcasting blackboard is connected with the control module and is used for recording audio and video images and/or displaying multimedia courseware and/or teacher blackboard-writing.
With reference to the first aspect, in a second implementation manner of the first aspect, the audio/video teaching recording and playing system in the embodiment of the present invention further includes: and the audio acquisition equipment is connected with the control module and is used for acquiring sound signals of teachers and/or students.
With reference to the second implementation manner of the first aspect, in a third implementation manner of the first aspect, the audio/video teaching recording and playing system in the embodiment of the present invention further includes: and the audio playing device is connected with the control module and is used for playing the sound signal amplified by the audio amplifying device.
With reference to the first aspect, in a fourth implementation manner of the first aspect, the audio/video teaching recording and playing system in the embodiment of the present invention further includes: and the timing equipment is connected with the control module and is used for displaying timing time.
With reference to the first aspect, in a fifth implementation manner of the first aspect, the audio/video teaching recording and playing system in the embodiment of the present invention further includes: the first screen pre-monitoring display is connected with the control module and is used for displaying video images shot by the first camera shooting device, the second camera shooting device, the third camera shooting device or the fourth camera shooting device and assisting the teacher in teaching;
and the second screen pre-monitoring display is connected with the control module and is used for displaying the video image shot by the first camera shooting device or the second camera shooting device or the third camera shooting device or the fourth camera shooting device and assisting the student in attending classes.
With reference to the first aspect, in a sixth implementation manner of the first aspect, the audio/video teaching recording and playing system in the embodiment of the present invention further includes: a projector for projecting a multimedia file; and the digital exhibition stand is connected with the projector and the control module and is used for displaying the multimedia file.
With reference to the first aspect, in a seventh implementation manner of the first aspect, the audio/video teaching recording and playing system in the embodiment of the present invention further includes: and the positioning camera is connected with the control module and is used for assisting in acquiring the video image in the classroom and performing positioning analysis on the video image.
With reference to the third implementation manner of the first aspect, in an eighth implementation manner of the first aspect, the audio/video teaching recording and playing system in the embodiment of the present invention further includes: and the resource manager is connected with the first camera device, the second camera device, the third camera device, the fourth camera device and the audio acquisition device and used for carrying out resource management or resource sharing on the video images shot by the first camera device, the second camera device, the third camera device and the fourth camera device and the sound signals acquired by the audio acquisition device.
According to a second aspect, an embodiment of the present invention provides an audio/video teaching control method, which is used in the first aspect or any implementation manner of the first aspect, and includes:
when a first person to be detected is located in a first area, controlling a switching module to switch to a first camera device to carry out panoramic shooting on the first person to be detected;
when the first person to be detected gives a lesson to indicate a limb and/or expression action, controlling a switching module to switch to a second camera device to carry out close-up shooting on the first person to be detected;
when the first person to be detected is located in the second area, controlling a switching module to switch to a third camera device to carry out panoramic shooting on the first person to be detected;
and when the second person to be detected stands, controlling the switching module to singly carry out close-up shooting on the second person to be detected.
The technical scheme of the embodiment of the invention has the following advantages:
the invention discloses an audio and video teaching recording and broadcasting system and a control method thereof, wherein the system comprises: the first camera equipment is arranged in a classroom and used for carrying out panoramic shooting on a first person to be detected when the first person to be detected is positioned in a first area; the second camera equipment is arranged in a classroom and used for carrying out close-up shooting on the first person to be detected when the first person to be detected gives a lesson to indicate limb and/or expression actions; the third camera equipment is arranged in the classroom and used for carrying out panoramic shooting on the first person to be detected when the first person to be detected is positioned in the second area; the fourth camera equipment is arranged in a classroom and is used for carrying out close-up shooting on the second person to be detected when the second person to be detected stands; a switching module; the system comprises a first camera device, a second camera device, a third camera device and a fourth camera device which are respectively connected and used for switching the first camera device, the second camera device, the third camera device or the fourth camera device; and the control module is respectively connected with the switching module and used for controlling the switching module to switch the first camera shooting device, the second camera shooting device, the third camera shooting device and the fourth camera shooting device mutually. The embodiment of the invention can avoid the problem that the displayed video picture is not beautiful enough due to the fact that a single camera is used for shooting both the panorama and the close-up of the student and redundant pictures appear in the switching process of the panorama shooting and the close-up shooting, and further can enhance the visual watching effect of the close-up shooting student.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of an audio and video teaching recording and broadcasting system in an embodiment of the present invention;
fig. 2 is a flowchart of an audio/video teaching recording and playing control method in the embodiment of the present invention.
Reference numerals:
1-a first camera device; 2-a second camera device; 3-a third camera device;
4-fourth camera device 5-switching module; 6-a control module;
7-recording and broadcasting blackboard; 8-an audio acquisition device; 9-an audio amplification device;
10-an audio playing device; 11-a timing device; 12-a first screen pre-monitor display;
13-second screen pre-monitor display; 14-a projector; 15-digital exhibition stand;
16-positioning a camera; 17-resource manager.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
An embodiment of the present invention provides an audio and video teaching recording and playing system, as shown in fig. 1, a first camera device 1, a second camera device 2, a third camera device 3, a fourth camera device 4, a switching module 5, and a control module 6. Wherein the content of the first and second substances,
the first image pickup apparatus 1 is provided in a classroom and performs panoramic shooting of a first person to be detected when the first person to be detected is located in a first area. The first person to be detected here may be a teacher or another person. The first camera device 1 here may also be a camera or a pan-tilt camera, which is arranged in a classroom, and may be installed above a wall of the fixed recording and broadcasting blackboard 7, which is connected to the switching module 5. The first area may be a platform area in a classroom, and the second area may be a student area in which students in the classroom attend a class. For example: for the purpose of remote online lecturer to see the whole course of a teacher's lecture clearly enough or on-site teaching the whole course of a lecture student behind a classroom to see a teacher's lecture clearly enough, the first image pickup apparatus 1 is used to perform panoramic photographing on a teacher who typically gives a lecture in a podium area, for example: when a teacher moves in a platform area, in order to record the whole process of the teacher's lecture, a remote on-line lecturer can watch the whole process of the teacher's lecture in a clear-headed manner, and at the moment, the first camera device 1 carries out panoramic shooting on the teacher in the platform area; for example: when teacher and a plurality of students indicate in the regional interaction of podium, in order to take notes the interactive overall process of teacher and a plurality of students for the interactive overall process between long-range online lecturer enough clear teacher and the student of watching helps the video display effect of long-range online education or on-the-spot teaching.
And the second image pickup device 2 is arranged in a classroom and is used for carrying out close-up shooting on the first person to be detected when the first person to be detected gives a teaching instruction for limb movement and/or expression movement. The first person to be detected here may be a teacher or another person. The second camera device 2 here may also be a camera or a pan-tilt camera, which is arranged in a classroom, and may be mounted above a wall of the fixed recording and broadcasting blackboard 7, which is connected to the switching module 5. In the course of the teacher, in order to assist the student to quickly understand the lecture content, the teacher usually makes corresponding specific limb actions and/or expression actions, at this moment, the second camera device 2 shoots the current limb actions and/or expression actions of the teacher, and then can display the current limb actions and/or expression actions, so that the student can watch the lecture more clearly, and the watching effect of video teaching is improved.
And the third camera device 3 is arranged in a classroom and used for carrying out panoramic shooting on the first person to be detected when the first person to be detected is positioned in the second area. The first person to be detected can be a teacher or other persons, and the second area can be a student area for students in a classroom to attend a class. The third camera device 3 here may also be a camera or a pan-tilt camera, which is arranged in a classroom, and may be installed above a wall of the fixed recording and broadcasting blackboard 7, which is connected to the switching module 5. In order to enable a remote on-line lessee to watch the whole interaction process of the student and the teacher clearly, the third camera device 3 can perform panoramic shooting on the student. For example: for example: when the teacher walks to the student area from the podium area and interacts with the student, the third camera device 33 can perform panoramic shooting on the teacher and the student in the student area. Utilize third camera device 3 to carry out panorama shooting to mr, the student in student area, be favorable to the learner of long-range online education to see clearly, directly perceivedly the interactive sight between mr and the student, strengthen the teaching and record and the video broadcast effect.
And a fourth image pickup apparatus 4 provided in a classroom for performing close-up photographing of the second human subject alone when the second human subject stands. The second human to be detected here may be a student. The fourth camera device 4 here may also be a camera or a pan-tilt camera, which is arranged in a classroom, and may be installed above a wall of the fixed recording and broadcasting blackboard 7, which is connected to the switching module 5. This fourth camera equipment 4 mainly used carries out the feature shooting to the student of standing, because in prior art, utilize single camera to realize carrying out panorama shooting and will realize carrying out the feature shooting to this student to student and position surrounding environment both usually, just need this camera to switch over to the feature student picture from the panorama picture of shooing, in the in-process of switching over, this camera still can catch other redundant pictures, this redundant picture still can be watched by online learner or on-the-spot student, obviously, the pleasing to the eye visual effect of watching has been influenced. And in this embodiment, utilize third camera equipment 3 to carry out panorama shooting to student and the surrounding environment of its position, when the student stands, utilize fourth camera equipment 4 to carry out the feature shooting to this student of standing, at this moment, when the feature picture of taking a picture of fourth camera equipment 4 was switched, direct display is at once that fourth camera equipment 4 shoots this student's feature picture, avoided switching the feature picture in-process from panorama picture, the redundant picture that appears, and then utilize fourth camera equipment 4 to carry out the feature shooting alone to this student of standing, can improve the visual effect of watching that video feature was shot, make the picture of shooting more pleasing to the eye simultaneously.
And a switching module 5 connected to the first image pickup apparatus 1, the second image pickup apparatus 2, the third image pickup apparatus 3, and the fourth image pickup apparatus 4, respectively, for switching the first image pickup apparatus 1, the second image pickup apparatus 2, or the third image pickup apparatus 3. The switching module 5 here can be a multichannel switch, the first camera device 1 performs data transmission through the first video capture channel, the first camera device 1 can be switched to the first video capture channel by using the switching module 5, the second camera device 2 performs data transmission through the second video capture channel, the second camera device 2 can be switched to the second video capture channel by using the switching module 5, the third camera device 3 performs data transmission through the third video capture channel, the third camera device 3 is switched to the third video capture channel by using the switching module 5, the fourth camera device 4 performs data transmission through the fourth video capture channel, and the fourth camera device 4 is switched to the fourth video capture channel by using the switching module 5.
And the control module 6 is respectively connected with the switching module 5 and used for controlling the switching module 5 to switch the first image pickup apparatus 1, the second image pickup apparatus 2, the third image pickup apparatus 3 and the fourth image pickup apparatus 4 from one another. Here, the control module 6 may be a desktop touch panel through which a teacher or a student may perform touch operations. The control module 6 controls the switching module 5 to switch the first camera device 1, the second camera device 2, the third camera device 3 and the fourth camera device 4 mutually, so that a video image picture collected by the first camera device 1, a video image picture collected by the second camera device 2, a video image picture collected by the third camera device 3 and a video image picture collected by the fourth camera device 4 can be switched, the switching effect of the video pictures is enhanced, and different requirements of remote online education learners are met.
In fig. 1, the audio/video teaching recording and playing system in the embodiment of the present invention further includes:
and the recording and broadcasting blackboard 7 is connected with the control module 6 and is used for recording audio and video images and/or displaying multimedia courseware and/or teacher blackboard-writing. The recording and broadcasting blackboard 7 comprises a first display area, a second display area and a third display area, wherein the first display area is used for teacher blackboard writing, the second display area is used for displaying multimedia courseware and/or teacher blackboard writing, the third display area is used for displaying audio and video recording pictures and/or teacher blackboard writing, the recording and broadcasting blackboard 7 is connected with the control module 6, the recording and broadcasting blackboard 7 is intelligent, and online classroom education or field teaching can be enriched and colorful.
In fig. 1, the audio/video teaching recording and playing system in the embodiment of the present invention further includes:
and the audio acquisition equipment 8 is connected with the control module 6 and is used for acquiring sound signals of teachers and/or students. Audio acquisition equipment 8 here can be for a plurality of adapters or a plurality of wheat of hanging, and at the in-process that the mr lectures, the sound signal that it sent all can gather through audio acquisition equipment 8, or, when the student answers the problem, can gather the sound signal that the student sent, or, can gather the sound signal that mr and student sent jointly.
In fig. 1, the audio/video teaching recording and playing system in the embodiment of the present invention further includes:
and the audio amplifying device 9 is connected with the audio collecting device 8 and is used for amplifying the sound signal. The audio amplifying device 9 here may be an audio amplifier for further amplifying the sound signal so that the sound signal can be clearly captured by the learner or the lecturer.
In fig. 1, the audio/video teaching recording and playing system in the embodiment of the present invention further includes:
and the timing device 11 is connected with the control module 6 and is used for displaying timing time. The timing device 11 here may be an LED timer for displaying time information or timing a teacher's lecture time.
In fig. 1, the audio/video teaching recording and playing system in the embodiment of the present invention further includes:
and the first screen pre-monitoring display 12 is connected with the control module 6 and is used for displaying the video images shot by the first camera device 1, the second camera device 2, the third camera device 3 or the fourth camera device 4 to assist the teacher in giving lessons. The first pre-monitor screen 12 may be a tv, and during the course of the teacher, the first pre-monitor screen 12 monitors the video image during the course, so that the teacher can watch the video image while teaching the video image.
In fig. 1, the audio/video teaching recording and playing system in the embodiment of the present invention further includes:
and the second screen pre-monitoring display 13 is connected with the control module 6 and is used for displaying video images shot by the first camera device 1, the second camera device 2, the third camera device 3 or the fourth camera device 4 and assisting students in attending classes. The second screen pre-monitor display 13 may also be a television, and in the process of interaction between the student and the teacher, the second screen pre-monitor display 13 monitors the video image in the process, so that the student or the teacher can watch the video image conveniently.
In fig. 1, the audio/video teaching recording and playing system in the embodiment of the present invention further includes:
a projector 14 for projecting multimedia files; the projector 14 belongs to one of the multimedia accessories.
And the digital exhibition stand 15 is connected with the projector 14 and the control module 6 and is used for displaying the multimedia files.
In fig. 1, the audio/video teaching recording and playing system in the embodiment of the present invention further includes:
and a positioning camera 16 connected to the control module 616 for assisting in capturing video images in a classroom and performing positioning analysis on the video images.
In fig. 1, the audio/video teaching recording and playing system in the embodiment of the present invention further includes:
and the resource manager 17 is connected with the first image pickup device 1, the second image pickup device 2, the third image pickup device 3 and the fourth image pickup device 4 and the audio acquisition device 8, and is used for performing resource management or resource sharing on the video images shot by the first image pickup device 1, the second image pickup device 2, the third image pickup device 3 and the fourth image pickup device 4 and the sound signals acquired by the audio acquisition device 8. The resource manager 17 is equivalent to a server, and performs resource sharing or resource management on the audio and video images for online teaching or on-site teaching, so that more learners can participate in learning conveniently, and the learning enthusiasm of the learners is further improved.
The audio and video teaching recording and playing system in the embodiment of the invention comprises a fully functional audio and video teaching system consisting of a first camera device 1, a second camera device 2, a third camera device 3, a fourth camera device 4, a switching module 5, a recording and playing blackboard 7, an audio acquisition device 8, an audio amplification device 9, an audio playing device 10, a timing device 11, a first screen pre-monitoring display 12, a second screen pre-monitoring display 13, a projector 14, a digital exhibition stand 15, a positioning camera 16 and a resource manager 17, and can be used for carrying out panoramic shooting and close-up shooting on a teacher course and carrying out panoramic shooting and close-up shooting on students to fully display the interactive details between the teacher and the students, thereby enhancing the audio and video recording, playing and releasing effects of remote online education or field teaching, more importantly, when a standing student is shot, the fourth camera device 4 is used for shooting the standing student independently, so that the situation that a single camera is used for shooting both the panorama and the close-up of the student, and redundant pictures appear in the switching process of panorama shooting and close-up shooting, so that the displayed video pictures are not beautiful enough can be avoided, and therefore the visual watching effect of the close-up shooting student can be enhanced.
Example 2
The embodiment of the invention provides an audio and video teaching control method, which is used for an audio and video teaching recording and broadcasting system in the embodiment 1, and as shown in fig. 2, the method comprises the following steps:
step S1: when the first person to be detected is located in the first area, the control switching module is switched to the first camera equipment to carry out panoramic shooting on the first person to be detected.
Step S2: when the first person to be detected gives lessons to indicate limb and/or expression actions, the control switching module is switched to the second camera equipment to carry out close-up shooting on the first person to be detected.
Step S3: when the first person to be detected is located in the second area, the control switching module is switched to the third camera equipment to carry out panoramic shooting on the first person to be detected.
Step S4: and when the second person to be detected stands, controlling the switching module to switch to the fourth camera equipment to independently carry out close-up shooting on the second person to be detected.
Through the steps S1 to S4, the switching module 5 is controlled to perform close-up shooting or panoramic shooting on the first person to be detected according to the current different states of the first person to be detected, or perform panoramic shooting or close-up shooting on the second person to be detected according to the current standing state of the second person to be detected, so that the interaction details between the first person to be detected and the second person to be detected can be fully displayed, and further, the effects of recording, playing and publishing audio and video of remote online education or on-site teaching can be enhanced. More importantly, when the standing second to-be-detected person is shot in close-up mode, the switching module is controlled to be switched to the fourth camera device to independently shoot the standing second to-be-detected person, the situation that a single camera is used for shooting the panorama and close-up of the second to-be-detected person can be avoided, redundant pictures appear in the switching process of panorama shooting and close-up shooting, and the displayed video pictures are not attractive enough can be avoided, and therefore the visual watching effect of close-up shooting of the second to-be-detected person can be enhanced.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. An audio and video teaching recording and playing system is characterized by comprising:
the first camera equipment is arranged in a classroom and used for carrying out panoramic shooting on a first person to be detected when the first person to be detected is located in a first area;
the second image pickup equipment is arranged in a classroom and used for carrying out close-up shooting on the first person to be detected when the first person to be detected gives a teaching instruction to indicate limb and/or expression actions;
the third camera equipment is arranged in a classroom and used for carrying out panoramic shooting on the first person to be detected when the first person to be detected is located in a second area;
the fourth camera equipment is arranged in a classroom and is used for carrying out close-up shooting on a second person to be detected when the second person to be detected stands;
a switching module; the first image pickup device, the second image pickup device, the third image pickup device and the fourth image pickup device are respectively connected with the first image pickup device, the second image pickup device, the third image pickup device and the fourth image pickup device, and the first image pickup device, the second image pickup device, the third image pickup device or the fourth image pickup device is switched;
and the control module is respectively connected with the switching module and is used for controlling the switching module to switch the first camera shooting device, the second camera shooting device, the third camera shooting device and the fourth camera shooting device mutually.
2. The audio-visual teaching recording and playing system of claim 1 further comprising:
and the recording and broadcasting blackboard is connected with the control module and is used for recording audio and video images and/or displaying multimedia courseware and/or teacher blackboard-writing.
3. The audio-visual teaching recording and playing system of claim 1 further comprising:
the audio acquisition equipment is connected with the control module and is used for acquiring sound signals;
and the audio amplification equipment is connected with the audio acquisition module and is used for amplifying the sound signal.
4. The audio-visual teaching recording and playing system of claim 3, further comprising:
and the audio playing device is connected with the audio amplifying device and is used for playing the sound signal amplified by the audio amplifying device.
5. The audio-visual teaching recording and playing system of claim 1 further comprising:
and the timing equipment is connected with the control module and is used for displaying timing time.
6. The audio-visual teaching recording and playing system of claim 1 further comprising:
the first screen pre-monitoring display is connected with the control module and used for displaying video images shot by the first camera shooting device, the second camera shooting device, the third camera shooting device or the fourth camera shooting device and assisting the first person to be detected in teaching;
and the second screen pre-monitoring display is connected with the control module and is used for displaying the video image shot by the first camera shooting device or the second camera shooting device or the third camera shooting device or the fourth camera shooting device and assisting the second person to be detected to listen to classes.
7. The audio-visual teaching recording and playing system of claim 1 further comprising:
a projector for projecting a multimedia file;
and the digital exhibition stand is connected with the projector and the control module and is used for displaying the multimedia file.
8. The audio-visual teaching recording and playing system of claim 1 further comprising:
and the positioning camera is connected with the control module and is used for assisting in acquiring the video image in the classroom and performing positioning analysis on the video image.
9. The audio-visual teaching recording and playing system of claim 3, further comprising:
and the resource manager is connected with the first camera device, the second camera device, the third camera device, the fourth camera device and the audio acquisition device and used for carrying out resource management or resource sharing on the video images shot by the first camera device, the second camera device, the third camera device and the fourth camera device and the sound signals acquired by the audio acquisition device.
10. An audio-video teaching control method for the audio-video teaching recording and playing system of any one of claims 1 to 9, comprising:
when a first person to be detected is located in a first area, controlling a switching module to switch to a first camera device to carry out panoramic shooting on the first person to be detected;
when the first person to be detected gives a lesson to indicate a limb and/or expression action, controlling a switching module to switch to a second camera device to carry out close-up shooting on the first person to be detected;
when the first person to be detected is located in the second area, controlling a switching module to switch to a third camera device to carry out panoramic shooting on the first person to be detected;
when the second person to be detected stands, the switching module is controlled to be switched to the fourth camera equipment to independently carry out close-up shooting on the second person to be detected.
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| CN201911204650.7A CN111064883A (en) | 2019-11-29 | 2019-11-29 | Audio and video teaching recording and playing system and control method thereof |
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