CN111294681B - Classroom terminal system and control method, controller and master control equipment thereof - Google Patents
Classroom terminal system and control method, controller and master control equipment thereof Download PDFInfo
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- CN111294681B CN111294681B CN202010128622.8A CN202010128622A CN111294681B CN 111294681 B CN111294681 B CN 111294681B CN 202010128622 A CN202010128622 A CN 202010128622A CN 111294681 B CN111294681 B CN 111294681B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/08—Mouthpieces; Microphones; Attachments therefor
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- G—PHYSICS
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- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B5/00—Electrically-operated educational appliances
- G09B5/04—Electrically-operated educational appliances with audible presentation of the material to be studied
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
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Abstract
The application discloses classroom terminal system and control method, controller and master control equipment thereof, the technical scheme of the application can select and open the audio acquisition element with the current position meeting the adaptation condition based on the current position and the network topological graph of the speaking user, the voice information of the speaking user is acquired, the opened audio acquisition element can be adjusted based on the current position, the audio acquisition element is not limited to be specially equipped for acquiring the voice information, the use is convenient, the voice information of the speaking user is acquired through the audio acquisition element with the current position meeting the adaptation condition, and the recording quality and the output quality of the voice information can be improved.
Description
Technical Field
The application relates to the technical field of multimedia devices, in particular to a classroom terminal system and a control method, a controller and a main control device thereof.
Background
With the development of scientific technology, intelligent classes using multimedia technology have become indispensable teaching tools. The wisdom classroom can mr and student show multimedia information through installing the classroom terminal system in the classroom, can also gather mr and student's sound information, handles the back, is exporting through classroom terminal system.
In the existing classroom terminal system, users can only use the microphones which are respectively and independently equipped to collect sound, for example, a teacher can only use the microphone which is independently equipped for the teacher to collect the sound information of the teacher, and each student can only use the microphone which is independently equipped on the seat of the student to collect the sound information of the student.
Disclosure of Invention
In view of this, the present application provides a classroom terminal system, a control method thereof, a controller and a main control device, and the scheme is as follows:
a control method of a classroom terminal system, the control method comprising:
acquiring the current position of a speaking user;
based on the current position and the network topological graph, selecting an audio acquisition element which meets an adaptation condition with the current position to start, and acquiring the sound information of the speaking user;
the classroom terminal system comprises a main control device and a plurality of controlled devices in communication connection with the main control device; the master device and the controlled device each have a separate audio capture element; the network topology map includes relative spatial position information of the master device and the controlled devices and relative spatial position information between the controlled devices.
Preferably, in the above control method, the method of collecting the sound information includes:
selecting one audio acquisition element with the minimum distance from the speaking user to be started, acquiring the sound information of the speaking user, and closing other audio acquisition elements;
or, selecting a plurality of audio acquisition elements with the distance from the current position smaller than a set threshold value to be started, acquiring the voice information of the speaking user, and closing other audio acquisition elements;
and controlling the main control equipment to output the collected sound information.
Preferably, in the above control method, if a plurality of the audio capturing elements are turned on, controlling the main control device to output the captured sound information includes:
the sound information collected by the opened audio collection elements is fused and superposed;
and controlling the main control equipment to output the sound information after fusion and superposition.
Preferably, in the above control method, the control method further includes: establishing and storing the network topological graph;
wherein the master device and the controlled device each have a separate audio assembly, the audio assembly including an audio output element and the audio capture element;
the method for establishing the network topological graph comprises the following steps:
controlling the audio output elements to output calibration audio data in a time-sharing manner, wherein when the audio output element of one audio component outputs the calibration audio data, the audio acquisition elements of other audio components are used for detecting the calibration audio data;
and forming the network topological graph based on the detection result of the audio acquisition element.
Preferably, in the above control method, forming the network topology map based on the detection result of the audio capture element includes:
determining a first relative distance of the master device and the controlled devices and a second relative distance of the controlled devices from each other based on the intensity of the audio data captured by the audio capture element;
and determining relative spatial position information of the master device and the controlled devices based on the first relative distance, and determining relative spatial position information between the controlled devices based on the second relative distance.
The present application also provides a controller of a classroom terminal system, the controller including:
the acquisition module is used for acquiring the current position of a speaking user;
the first processing module is used for selecting an audio acquisition element which meets an adaptation condition with the current position to start and acquiring the sound information of the speaking user based on the current position and the network topological graph;
the classroom terminal system comprises a main control device and a plurality of controlled devices in communication connection with the main control device; the master device and the controlled device each have a separate audio capture element; the network topology map includes relative spatial position information of the master device and the controlled devices and relative spatial position information between the controlled devices.
Preferably, in the controller, the first processing module is configured to select one of the audio acquisition elements that is the smallest distance from the speaking user to be turned on to acquire sound information of the speaking user, and turn off the other audio acquisition elements, or select a plurality of the audio acquisition elements that are less than a set threshold from the current position to be turned on to turn off the other audio acquisition elements to acquire sound information of the speaking user;
the controller also comprises a second processing module, and the second processing module is used for controlling the main control equipment to output the collected sound information;
if the audio acquisition elements are started, the second processing module is used for fusing and overlapping the sound information acquired by the started audio acquisition elements and controlling the main control equipment to output the sound information after fusion and overlapping.
The application also provides a master control device of the classroom terminal system, and the classroom terminal system also comprises a plurality of controlled devices which are in communication connection with the master control device; the master device and the controlled device each have a separate audio capture element;
the master control equipment further comprises a controller, wherein the controller is used for acquiring the current position of a speaking user, selecting an audio acquisition element which meets an adaptation condition with the current position to start based on the current position and a network topological graph, and acquiring sound information of the speaking user;
the network topology map comprises relative spatial position information of the master control device and the controlled devices and relative spatial position information between the controlled devices.
Preferably, in the above-mentioned master control device, the master control device and the controlled device each have a separate audio component, and the audio component includes an audio output element and the audio capture element;
the controller is also used for establishing and storing the network topological graph; the controller is used for controlling the audio output elements to output calibration audio data in a time-sharing mode, when the audio output element of one audio assembly outputs the calibration audio data, the audio acquisition elements of other audio assemblies are used for detecting the calibration audio data, and the network topological graph is formed based on the detection result of the audio acquisition elements.
The present application further provides a classroom terminal system, the classroom terminal system includes: the system comprises a main control device and a plurality of controlled devices in communication connection with the main control device; the master device and the controlled device each have a separate audio capture element;
the master control equipment further comprises a controller, wherein the controller is used for acquiring the current position of a speaking user, selecting an audio acquisition element which meets an adaptation condition with the current position to start based on the current position and a network topological graph, and acquiring sound information of the speaking user;
the network topology map comprises relative spatial position information of the master control device and the controlled devices and relative spatial position information between the controlled devices.
According to the classroom terminal system and the control method, the controller and the main control device thereof, the current position of the speaking user can be obtained, and then based on the current position and the network topological graph, an audio acquisition element which meets the adaptation condition with the current position is selected to be started to acquire the sound information of the speaking user. The classroom terminal system comprises a main control device and a plurality of controlled devices in communication connection with the main control device; the master device and the controlled device each have a separate audio capture element; the network topology map includes relative spatial position information of the master device and the controlled devices and relative spatial position information between the controlled devices. It is thus clear that in the technical scheme of this application, can be based on present position and the network topological diagram of the user of speaking select with the audio frequency collection component that present position satisfies the adaptation condition opens, gathers the sound information of the user of speaking, the audio frequency collection component that opens can be based on present position and adjust, is not restricted to the audio frequency collection component of specific outfit and carries out the collection of sound information, convenient to use, and through with the audio frequency collection component that present position satisfies the adaptation condition gathers the sound information of the user of speaking, can improve recording quality and output quality of sound information.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
The structures, proportions, and dimensions shown in the drawings and described in the specification are for illustrative purposes only and are not intended to limit the scope of the present disclosure, which is defined by the claims, but rather by the claims, it is understood that these drawings and their equivalents are merely illustrative and not intended to limit the scope of the present disclosure.
Fig. 1 is a flowchart of a method for controlling a classroom terminal system according to an embodiment of the present disclosure;
fig. 2 is a flowchart of a method of outputting a voice message according to an embodiment of the present application;
fig. 3 is a flowchart of another classroom terminal control method provided in the embodiments of the present application;
fig. 4 is a flowchart of a method for establishing the network topology according to an embodiment of the present application;
fig. 5 is a flowchart of a method for forming a network topology map based on a detection result according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a classroom terminal controller according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of another classroom terminal system controller provided in the embodiments of the present application;
fig. 8 is a schematic structural diagram of another classroom terminal system controller provided in the embodiments of the present application;
fig. 9 is a schematic structural diagram of a main control device according to an embodiment of the present application;
fig. 10 is a schematic structural diagram of another master device according to an embodiment of the present application;
fig. 11 is a schematic structural diagram of a classroom terminal system according to an embodiment of the present application.
Detailed Description
The embodiments of the present application will be described in detail and fully with reference to the accompanying drawings, wherein the description is only for the purpose of illustrating the embodiments of the present application and is not intended to limit the scope of the 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 application.
As described in the beijing technology, in the existing classroom terminal system, users can only use individually equipped microphones to collect sound, and particularly, for teachers, unlimited microphones need to be individually used in order to adapt to the situation that teachers are in different positions to collect sound information.
In order to solve the above problem, a microphone array at the top end can be constructed in a classroom, but the scheme is high in cost and complex in equipment maintenance.
The inventor researches and discovers that sound information can be selectively collected by utilizing an array structure formed by existing audio collecting elements equipped for teachers and students in teachers, specifically, based on the position of a current speaking user and a preset network topological graph, the audio collecting elements meeting the adaptation condition with the current position in the array structure are selected to collect the sound information of the current speaking user, the started audio collecting elements can be adjusted based on the current position, for example, the started audio collecting elements can be not limited to the specifically equipped audio collecting elements to collect the sound information, the use is convenient, and the sound information of the speaking user is collected by the audio collecting elements meeting the adaptation condition with the current position, so that the recording quality and the output quality of the sound information can be improved.
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, the present application is described in further detail with reference to the accompanying drawings and the detailed description.
Referring to fig. 1, fig. 1 is a flowchart of a method for controlling a classroom terminal system according to an embodiment of the present application, where the method includes:
step S11: the current position of the speaking user is obtained.
Step S12: and selecting an audio acquisition element which meets the adaptation condition with the current position to start based on the current position and the network topological graph, and acquiring the voice information of the speaking user.
The classroom terminal system comprises a main control device and a plurality of controlled devices in communication connection with the main control device; the master device and the controlled device each have a separate audio capture element; the network topology map includes relative spatial position information of the master device and the controlled devices and relative spatial position information between the controlled devices. The master control device may be a multimedia device equipped for a teacher in a multimedia classroom, and the controlled device may be a multimedia device equipped for students in the multimedia classroom, and one controlled device may be equipped for each student individually, or one controlled device may be equipped for a plurality of students. The audio capture element comprises a microphone.
Therefore, in the control method, the started audio acquisition element can be adjusted based on the current position, the audio acquisition element is not limited to be specially equipped for acquiring sound information, the use is convenient, and the sound information of the speaking user is acquired by the audio acquisition element meeting the adaptation condition with the current position, so that the recording quality and the output quality of the sound information can be improved.
In the control method, the main control device may be controlled to output the collected sound information. The master control device can be a multimedia device equipped for teachers in multimedia classrooms, so that the master control device is provided with a high-quality audio output element and can output high-quality sound information. The master device includes an audio output element to output sound information. The audio output element comprises a speaker.
In the control method according to the embodiment of the present invention, the method for acquiring the sound information includes: and selecting one audio acquisition element with the minimum distance from the speaking user to be started, acquiring the sound information of the speaking user, and closing other audio acquisition elements. In this embodiment, the audio acquisition element closest to the current speaking user is selected to acquire the sound information, and the audio acquisition element is not limited to the specifically equipped audio acquisition element to acquire the sound information, so that the user is convenient to use. For teachers, a wireless audio acquisition element is not required to be equipped, if the current position of the wireless audio acquisition element is closest to the audio acquisition element of the main control equipment, the audio acquisition element of the main control equipment can be used for acquiring the sound information of the teacher, and if the current position of the wireless audio acquisition element is closest to the audio acquisition element of one controlled equipment, the audio acquisition element of the controlled equipment can be used for acquiring the sound information of the teacher. In this manner, if a plurality of audio capture elements are simultaneously provided with a minimum distance from the speaking user, such as in a scenario where a teacher is positioned midway between two student seats, one of them can be arbitrarily selected to be turned on.
In another aspect, the method for collecting the sound information includes: and selecting a plurality of audio acquisition elements with the distance from the current position smaller than a set threshold value to be started, acquiring the voice information of the speaking user, and closing other audio acquisition elements. The set threshold may be set based on a requirement, and the embodiment of the present application does not specifically limit the specific value thereof. In this way, the sound information of the user currently speaking can be collected by a plurality of the audio collecting elements. For teachers, wireless audio collecting elements are not required to be equipped, if the distances between the current position of the wireless audio collecting elements and the audio collecting elements of the main control device and the audio collecting elements of the at least one controlled device are smaller than a set threshold, the sound information of the teachers can be collected simultaneously through the audio collecting elements of the main control device and the audio collecting elements of the at least one controlled device, or if the distances between the current position of the wireless audio collecting elements and the audio collecting elements of the multiple controlled devices are smaller than the set threshold, the sound information of the teachers can be collected simultaneously through the audio collecting elements of the multiple controlled devices. For students, the sound information of the students can be simultaneously collected through the audio frequencies of a plurality of controlled devices with the distances from the current positions of the students smaller than a set threshold value, wherein the plurality of controlled devices comprise matched controlled devices corresponding to the current positions of the controlled devices.
In the control method according to the embodiment of the present invention, if one of the audio collecting elements is turned on, the collected sound information may be output through the main control device. Fig. 2 shows a method for controlling the main control device to output the collected sound information if a plurality of audio collecting elements are turned on, where fig. 2 is a flowchart of a method for outputting sound information according to an embodiment of the present disclosure, where the method includes:
step S21: and fusing and superposing the sound information collected by the opened plurality of audio collecting elements.
Step S22: and controlling the main control equipment to output the sound information after fusion and superposition.
Through a plurality of the voice information of current user is gathered simultaneously to the audio acquisition component, will be a plurality of the voice information that the audio acquisition component was gathered fuses the superposition back and exports, for only adopting an audio acquisition component to carry out the mode that sound was gathered and was exported, improves the intensity of gathering voice information, can guarantee the intensity of output voice information to and eliminate its degree of distortion.
Referring to fig. 3, fig. 3 is a flowchart of another classroom terminal control method provided in the embodiment of the present application, where the method includes:
step S31: and establishing and storing the network topological graph.
Step S32: the current location of the speaking user is obtained, the same as in step S11 described above.
Step S33: based on the current location and the network topology, selecting an audio capture element that satisfies an adaptation condition with the current location to turn on, and capturing the voice information of the speaking user, which is the same as the step S12 described above.
Wherein the master device and the controlled device each have a separate audio assembly, the audio assembly including an audio output element and the audio capture element; as mentioned above, the audio output element comprises a speaker. The audio output element is used for outputting sound information.
Referring to fig. 4, fig. 4 is a flowchart of a method for establishing the network topology provided in the embodiment of the present application, where the method includes:
step S41: and controlling the audio output elements to output calibration audio data in a time-sharing manner, wherein when the audio output element of one audio component outputs the calibration audio data, the audio acquisition elements of other audio components are used for detecting the calibration audio data. In this step, when the audio output element of one of the audio components outputs the calibration audio data, the audio output elements of the other audio components are all turned off, and the audio collecting elements of the other audio components are all turned on, so as to collect the calibration audio data.
Step S42: and forming the network topological graph based on the detection result of the audio acquisition element.
In the method shown in fig. 4, the network topology can be established directly based on the audio output element and the audio acquisition element inherent in the classroom terminal system, no other auxiliary equipment is needed, and the implementation mode is simple.
The method for forming the network topology map based on the detection result of the audio acquisition element includes the method shown in fig. 5, and fig. 5 is a flowchart of a method for forming the network topology map based on the detection result according to an embodiment of the present application, where the method includes:
step S51: determining a first relative distance of the master device and the controlled devices and a second relative distance of the controlled devices from each other based on the intensity of the audio data captured by the audio capture element;
step S52: and determining relative spatial position information of the master device and the controlled devices based on the first relative distance, and determining relative spatial position information between the controlled devices based on the second relative distance. The respective relative spatial position information can be calculated based on a conventional triangle positioning method.
In the manner shown in fig. 5, the relative distance between the audio capture elements can be determined according to the intensity of the audio data captured by the audio capture elements, and then the relative spatial position information between the audio capture elements can be determined, so as to establish the network topology.
As can be seen from the above description, the control method in the embodiment of the present application selects, based on the position of the current speaking user and a preset network topology, an audio acquisition element whose current position meets an adaptation condition to acquire sound information of the current speaking user, and the started audio acquisition element may be adjusted based on the current position, for example, the audio acquisition element may not be limited to a specific audio acquisition element to acquire sound information, so that the control method is convenient to use, and the audio acquisition element whose current position meets the adaptation condition acquires the sound information of the speaking user, so as to improve recording quality and output quality of the sound information.
Based on the foregoing embodiment, another embodiment of the present application further provides a controller of a classroom terminal, where the controller is shown in fig. 6, and fig. 6 is a schematic structural diagram of the controller of the classroom terminal provided in the embodiment of the present application, and the controller includes: an obtaining module 11, where the obtaining module 11 is configured to obtain a current location of a speaking user; a first processing module 12, where the first processing module 12 is configured to select, based on the current location and a network topology, an audio capture element that meets an adaptation condition with the current location to start, and capture sound information of the speaking user. The first processing module 12 is in communication connection with the obtaining module 11.
The classroom terminal system comprises a main control device and a plurality of controlled devices in communication connection with the main control device; the master device and the controlled device each have a separate audio capture element; the network topology map includes relative spatial position information of the master device and the controlled devices and relative spatial position information between the controlled devices.
Optionally, the first processing module 12 is configured to select one of the audio acquisition elements with a minimum distance from the speaking user to be turned on, acquire the sound information of the speaking user, and turn off the other audio acquisition elements, or select a plurality of audio acquisition elements with a distance from the current position smaller than a set threshold to be turned on, turn off the other audio acquisition elements, and acquire the sound information of the speaking user.
As shown in fig. 7, fig. 7 is a schematic structural diagram of another classroom terminal system controller provided in the embodiment of the present application, and based on the manner shown in fig. 6, the controller further includes a second processing module 13, where the second processing module 13 is configured to control the main control device to output the collected sound information. The second processing module 13 is communicatively connected to the first processing module 12.
If a plurality of audio acquisition elements are started, the second processing module 13 is configured to fuse and superimpose the sound information acquired by the plurality of started audio acquisition elements, and control the main control device to output the sound information subjected to fusion and superimposition.
As shown in fig. 8, fig. 8 is a schematic structural diagram of another classroom terminal system controller provided in the embodiment of the present application, and based on the manner shown in fig. 6, the controller further includes a third processing module 14, and the third processing module 14 is communicatively connected to the first processing module 12. Optionally, as shown in fig. 8, the controller may further include the second processing module 13.
The third processing module 14 is configured to establish and store the network topology map; wherein the master device and the controlled device each have a separate audio output element. The third processing module 14 is configured to control the audio output element to output calibration audio data in a time-sharing manner, and when the audio output element of one of the audio components outputs the calibration audio data, the audio capture elements of the other audio components are configured to detect the calibration audio data, and form the network topology based on a detection result of the audio capture element.
The third processing module 14 is configured to determine a first relative distance between the master device and the controlled device and a second relative distance between the controlled devices based on the intensity of the audio data acquired by the audio acquisition element, determine relative spatial position information between the master device and the controlled device based on the first relative distance, and determine relative spatial position information between the controlled devices based on the second relative distance.
Based on the above control method and controller embodiments, another embodiment of the present application further provides a master device of a classroom terminal system, where the classroom terminal system further includes a plurality of controlled devices in communication connection with the master device, and the master device and the controlled devices both have separate audio acquisition elements.
As shown in fig. 9, fig. 9 is a schematic structural diagram of a main control device provided in an embodiment of the present application, where the main control device includes an audio acquisition element 22 and further includes a controller 21, and the controller 21 is the controller described in the foregoing embodiment. The controller 21 is configured to obtain a current location of a speaking user, select, based on the current location and a network topology, an audio acquisition element (including the audio acquisition element 22 of the main control device and/or the audio acquisition element of the controlled device) that meets an adaptation condition with the current location to start, and acquire sound information of the speaking user; the network topology map comprises relative spatial position information of the master control device and the controlled devices and relative spatial position information between the controlled devices.
As shown in fig. 10, fig. 10 is a schematic structural diagram of another master device provided in the embodiment of the present application, and based on the manner shown in fig. 9, the master device shown in fig. 10 further includes: at least one of an image capture element 25, an audio output element 23, and a display 24. The image capturing element 25 is at least used to capture the current position. The audio output element 23 is used to output sound information. The display 24 is used for image display.
Optionally, the master device and the controlled device each have a separate audio output element;
the controller 21 is further configured to establish and store the network topology map; the controller 21 is configured to control the audio output elements to output calibration audio data in a time-sharing manner, and when the audio output element of one of the audio components outputs the calibration audio data, the audio capture elements of the other audio components are configured to detect the calibration audio data, and form the network topology based on a detection result of the audio capture element. The principle of the controller 21 establishing the network topology map may be described with reference to the above embodiments, and is not described herein again. The controller 21 is integrated with a memory for storing the network topology, or a memory separately communicatively connected to the controller 21 is used for storing the network topology.
The master control device can be used for executing the control method, based on the position of the current speaking user and a preset network topological graph, the audio acquisition element of which the current position meets the adaptation condition is selected to acquire the sound information of the current speaking user, the started audio acquisition element can be adjusted based on the current position, if the audio acquisition element is not limited to a specific audio acquisition element for acquiring the sound information, the use is convenient, and the recording quality and the output quality of the sound information can be improved by acquiring the sound information of the speaking user through the audio acquisition element of which the current position meets the adaptation condition.
Based on the foregoing control embodiment, another embodiment of the present application further provides a classroom terminal system, as shown in fig. 11, where fig. 11 is a schematic structural diagram of the classroom terminal system provided in the embodiment of the present application, and the classroom terminal system includes: a master control device 21 and a plurality of controlled devices 22 communicatively connected to the master control device 21; the master device 21 and the controlled device 22 each have a separate audio capture element; the audio output elements are not shown in fig. 11.
The main control device 31 further includes a controller 312, where the controller 312 is configured to obtain a current location of a speaking user, select, based on the current location and a network topology map, an audio acquisition element that meets an adaptation condition with the current location to start, and acquire sound information of the speaking user; wherein the network topology map includes relative spatial position information of the master device 31 and the controlled device 32 and relative spatial position information between the controlled devices 32. The controller 312 may be integrated into a computer. The controlled device 32 may be an electronic device disposed on the plurality of student seats 333, such as a mobile phone, a notebook computer, or a tablet computer, or a computer installed fixedly.
Wherein, the main control device 31 comprises a display 24 at least for displaying image information. The master device 31 may further comprise an image acquisition element 25 at least for acquiring the current position. The image pickup element 25 may be a panoramic camera.
In the classroom terminal system, the controlled device 32 can be connected to the main control device 31 through the same local area network. The controller 312 of the main control device 31 can construct a virtual engine in the display 24 to form a control interface on the display 24, where the control interface is used to control the working state of the controlled device 32, and the working state includes one or more of the on/off state of an audio capture element, the on/off state of an audio output element, and the output volume of the controlled device 32. The virtual engine can also realize the calibration of all audio output elements so as to construct the network topological graph, and the visual display of the network topological graph is realized through the display screen. Through the virtual engine, the image acquisition element 25 of the main control device 31 can be further controlled to acquire the current position of the current speaking user, so that the pronunciation center is judged, the set audio acquisition element is selected to be started to acquire the sound information of the current speaking user, and the acquired sound information is collected to the main control device, so that the output control is facilitated.
The classroom terminal system in the embodiment of the application can be used for executing the control method, based on the position of the current speaking user and a preset network topological graph, the audio acquisition element meeting the adaptation condition with the current position is selected to acquire the sound information of the current speaking user, the started audio acquisition element can be adjusted based on the current position, if the audio acquisition element is not limited to a specific audio acquisition element for acquiring the sound information, the classroom terminal system is convenient to use, and the recording quality and the output quality of the sound information can be improved by acquiring the sound information of the speaking user through the audio acquisition element meeting the adaptation condition with the current position.
The embodiments in the present description are described in a progressive manner, or in a parallel manner, or in a combination of a progressive manner and a parallel manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments can be referred to each other. The classroom terminal system, the controller and the main control device disclosed in the embodiment correspond to the control method disclosed in the embodiment, so that the description is relatively simple, and the relevant points can be referred to the description of the relevant parts of the control method.
It should be noted that in the description of the present application, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only used for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present application. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present.
It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in an article or device that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A control method of a classroom terminal system, the control method comprising:
establishing and storing a network topological graph;
acquiring the current position of a speaking user;
based on the current position and the network topological graph, selecting an audio acquisition element which meets an adaptation condition with the current position to start, and acquiring the sound information of the speaking user;
the classroom terminal system comprises a main control device and a plurality of controlled devices in communication connection with the main control device; the master device and the controlled device each have a separate audio capture element; the network topology graph comprises relative spatial position information of the master control device and the controlled devices and relative spatial position information between the controlled devices;
the master control device and the controlled device each have a separate audio assembly including an audio output element and the audio capture element;
the method for establishing the network topological graph comprises the following steps:
controlling the audio output elements to output calibration audio data in a time-sharing manner, wherein when the audio output element of one audio component outputs the calibration audio data, the audio acquisition elements of other audio components are used for detecting the calibration audio data;
and forming the network topological graph based on the detection result of the audio acquisition element, so that the network topological graph is directly established based on the audio output element and the audio acquisition element inherent in the classroom terminal system.
2. The control method according to claim 1, the method of collecting the sound information comprising:
selecting one audio acquisition element with the minimum distance from the speaking user to be started, acquiring the sound information of the speaking user, and closing other audio acquisition elements;
or, selecting a plurality of audio acquisition elements with the distance from the current position smaller than a set threshold value to be started, acquiring the voice information of the speaking user, and closing other audio acquisition elements;
and controlling the main control equipment to output the collected sound information.
3. The control method according to claim 2, wherein if a plurality of the audio capturing elements are turned on, controlling the main control device to output the captured sound information comprises:
the sound information collected by the opened audio collection elements is fused and superposed;
and controlling the main control equipment to output the sound information after fusion and superposition.
4. The control method of claim 1, forming the network topology based on the detection result of the audio capture element, comprising:
determining a first relative distance of the master device and the controlled devices and a second relative distance of the controlled devices from each other based on the intensity of the audio data captured by the audio capture element;
and determining relative spatial position information of the master device and the controlled devices based on the first relative distance, and determining relative spatial position information between the controlled devices based on the second relative distance.
5. A controller of a classroom endpoint system, the controller comprising:
the acquisition module is used for acquiring the current position of a speaking user;
the first processing module is used for selecting an audio acquisition element which meets an adaptation condition with the current position to start and acquiring the sound information of the speaking user based on the current position and the network topological graph; wherein, a network topological graph is pre-established and stored;
the classroom terminal system comprises a main control device and a plurality of controlled devices in communication connection with the main control device; the master device and the controlled device each have a separate audio capture element; the network topology graph comprises relative spatial position information of the master control device and the controlled devices and relative spatial position information between the controlled devices;
the master control device and the controlled device each have a separate audio assembly including an audio output element and the audio capture element;
the method for establishing the network topological graph comprises the following steps:
controlling the audio output elements to output calibration audio data in a time-sharing manner, wherein when the audio output element of one audio component outputs the calibration audio data, the audio acquisition elements of other audio components are used for detecting the calibration audio data;
and forming the network topological graph based on the detection result of the audio acquisition element, so that the network topological graph is directly established based on the audio output element and the audio acquisition element inherent in the classroom terminal system.
6. The controller according to claim 5, wherein the first processing module is configured to select one of the audio capturing elements that is the smallest distance from the speaking user to turn on, capture sound information of the speaking user, and turn off the other audio capturing elements, or select a plurality of the audio capturing elements that are less than a set threshold from the current position to turn on, turn off the other audio capturing elements, and capture sound information of the speaking user;
the controller also comprises a second processing module, and the second processing module is used for controlling the main control equipment to output the collected sound information;
if the audio acquisition elements are started, the second processing module is used for fusing and overlapping the sound information acquired by the started audio acquisition elements and controlling the main control equipment to output the sound information after fusion and overlapping.
7. The master control equipment of the classroom terminal system further comprises a plurality of controlled equipment which is in communication connection with the master control equipment; the master control device and the controlled device each have a separate audio capture element;
the master control equipment further comprises a controller, wherein the controller is used for acquiring the current position of a speaking user, selecting an audio acquisition element which meets an adaptation condition with the current position to start based on the current position and a network topological graph, and acquiring sound information of the speaking user; wherein, a network topological graph is pre-established and stored;
the network topology graph comprises relative spatial position information of the master control device and the controlled devices and relative spatial position information between the controlled devices;
wherein the master device and the controlled device each have a separate audio assembly, the audio assembly including an audio output element and the audio capture element;
the controller is also used for establishing and storing the network topological graph; the controller is used for controlling the audio output elements to output calibration audio data in a time-sharing mode, when the audio output element of one audio assembly outputs the calibration audio data, the audio acquisition elements of other audio assemblies are used for detecting the calibration audio data, and the network topological graph is formed based on the detection result of the audio acquisition elements, so that the network topological graph is directly established based on the audio output elements and the audio acquisition elements inherent in the classroom terminal system.
8. A classroom termination system, the classroom termination system comprising: the system comprises a main control device and a plurality of controlled devices in communication connection with the main control device; the master control device and the controlled device are respectively provided with an independent audio assembly, and the audio assembly comprises an audio output element and an audio acquisition element;
the master control equipment further comprises a controller, wherein the controller is used for acquiring the current position of a speaking user, selecting an audio acquisition element which meets an adaptation condition with the current position to start based on the current position and a network topological graph, and acquiring sound information of the speaking user; wherein, a network topological graph is pre-established and stored;
the network topology graph comprises relative spatial position information of the master control device and the controlled devices and relative spatial position information between the controlled devices;
the method for establishing the network topological graph comprises the following steps:
controlling the audio output elements to output calibration audio data in a time-sharing manner, wherein when the audio output element of one audio component outputs the calibration audio data, the audio acquisition elements of other audio components are used for detecting the calibration audio data;
and forming the network topological graph based on the detection result of the audio acquisition element, so that the network topological graph is directly established based on the audio output element and the audio acquisition element inherent in the classroom terminal system.
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