CN117994961A

CN117994961A - Conference control method, conference control device, conference device and conference system

Info

Publication number: CN117994961A
Application number: CN202410130994.2A
Authority: CN
Inventors: 迟博麒; 曾维微; 苗嘉桂; 张煜
Original assignee: Beijing Jingdong Century Trading Co Ltd; Beijing Wodong Tianjun Information Technology Co Ltd
Current assignee: Beijing Jingdong Century Trading Co Ltd; Beijing Wodong Tianjun Information Technology Co Ltd
Priority date: 2024-01-30
Filing date: 2024-01-30
Publication date: 2024-05-07

Abstract

The disclosure relates to a conference control method, a conference control device, a conference device and a conference system, wherein the conference control device comprises: receiving conference control operation information for a target conference device; determining target ultrasonic carrier wave information corresponding to target conference equipment; the target ultrasonic carrier information is used for distinguishing the controlled object in at least one dimension of amplitude or frequency; based on the target ultrasonic carrier information, encoding the conference control operation information to obtain an ultrasonic carrier control signal aiming at target conference equipment; and based on the audio module of the conference control device, sending the ultrasonic carrier control signal to the target conference device. The corresponding wireless communication channel is not required to be additionally established, and the ultrasonic wave can efficiently transmit the control signal in a short distance, so that the method is convenient and practical; directional control between the conference control equipment and the target conference equipment is realized, and interference of a plurality of control signal transmission processes based on ultrasonic waves is avoided.

Description

Conference control method, conference control device, conference device and conference system

Technical Field

The disclosure relates to the technical field of conference equipment control, and in particular relates to a conference control method, conference control equipment, conference equipment and a conference system.

Background

In a scene where a conference is held on site, conference facilities are typically deployed in conference rooms. A typical conference device is a device that supports large screen presentations, such as a display screen that includes a control host and a large screen.

In the process of implementing the disclosed concept, the inventor finds that the following technical problems exist in the related art: in some scenes, a two-dimensional code is usually attached to a control host of the conference device, and in the case that the conference device needs to be used, conference personnel usually scan the two-dimensional code on the control host by adopting the conference control device (such as a notebook computer or a smart phone) and can identify the unique identifier of the conference device and establish a wireless transmission channel between the conference control device and the conference device through scanning, and the wireless transmission channel is generally established and controlled on the basis of a local area network (such as wifi) or a 4G or 5G network; however, the two-dimension code needs to be scanned in the mode, and data transmission is needed by means of a wireless communication network, so that delay, blocking and the like exist in control of conference equipment in some conference rooms with poor wireless communication network signals, and the conference experience is poor.

Disclosure of Invention

To solve or at least partially solve the above technical problems, embodiments of the present disclosure provide a method for controlling a conference, a conference control device, a conference device, and a system.

In a first aspect, embodiments of the present disclosure provide a method of conference control. The above method is applied to a conference control device. The method comprises the following steps: receiving conference control operation information for a target conference device; determining target ultrasonic carrier wave information corresponding to the target conference equipment; the target ultrasonic carrier information is used for distinguishing a controlled object in at least one dimension of amplitude or frequency; encoding the conference control operation information based on the target ultrasonic carrier information to obtain an ultrasonic carrier control signal for the target conference equipment; and transmitting the ultrasonic carrier control signal to the target conference equipment based on the audio module of the conference control equipment.

According to an embodiment of the present disclosure, determining target ultrasonic carrier information corresponding to the target conference device includes: determining a target ultrasonic carrier frequency band corresponding to the target conference equipment according to a mapping table between the conference equipment and the ultrasonic carrier frequency band; the mapping table stores the corresponding relation among the conference room, the conference equipment and the ultrasonic carrier frequency band; and determining the target ultrasonic power or the target ultrasonic amplitude corresponding to the target conference equipment according to the area information of the conference room where the conference control equipment and the target conference equipment are located and the internal construction information of the conference room.

According to an embodiment of the present disclosure, encoding the conference control operation information based on the target ultrasonic carrier information to obtain an ultrasonic carrier control signal for the target conference device includes: determining the pairing identification frequency of the target ultrasonic carrier frequency band as a sequence head; the pairing identification frequency is used as the identification frequency for distinguishing different conference devices; analyzing the conference control operation information into a character string corresponding to a preset system; generating a sequence body for encoding the character string according to the encoding frequency used for encoding the character of the preset system in the target ultrasonic carrier frequency band; the corresponding coding frequencies of the different characters of the preset system have preset frequency intervals; splicing the sequence header and the sequence body to obtain a coding frequency sequence; modulating the amplitude of the code frequency sequence to the target ultrasonic amplitude or modulating the power of the code frequency sequence to the target ultrasonic power; and the coded frequency sequence obtained after modulation is used as the ultrasonic carrier control signal.

According to an embodiment of the present disclosure, in the above correspondence, there is at least one of the following cases:

Under the condition that different first conference equipment and second conference equipment in the same conference room are jointly displayed, the first conference equipment and the second conference equipment have the same target ultrasonic carrier frequency band; or alternatively

Under the condition that different first conference equipment and second conference equipment in the same conference room are independently displayed, the first conference equipment and the second conference equipment have different target ultrasonic carrier wave frequency bands; or alternatively

In the case that the first conference room and the second conference room are different conference rooms, and the third conference device of the first conference room and the fourth conference device of the second conference room are independently displayed, the target ultrasonic power or the target ultrasonic amplitude of the third conference device meets the following conditions: the signal transmission distance in the first meeting room is met, and the signal transmission distance in the second meeting room is attenuated to be below a first preset threshold value after the signal transmission distance in the first meeting room is reached; the target ultrasonic power or the target ultrasonic amplitude of the fourth conference device satisfies the following conditions: the signal transmission distance in the second conference room is met, and the signal transmission distance in the second conference room is attenuated to be below a second preset threshold value after reaching the first conference room; the third conference device and the fourth conference device have the same target ultrasonic carrier frequency band; or alternatively

In the case where the third conference device of the first conference room and the fourth conference device of the second conference room are displayed independently, the target ultrasonic power or the target ultrasonic amplitude of the third conference device satisfies the following conditions: the signal transmission distance in the first meeting room is met, and the signal transmission distance in the second meeting room is attenuated to be below a third preset threshold value after the signal transmission distance in the first meeting room is reached; the target ultrasonic power or the target ultrasonic amplitude of the fourth conference device satisfies the following conditions: the signal transmission distance in the second conference room is met, and the signal transmission distance in the second conference room is attenuated to be below a fourth preset threshold value after reaching the first conference room; the third conference device and the fourth conference device have different target ultrasonic carrier frequency bands; wherein the third preset threshold is greater than the first preset threshold, and the fourth preset threshold is greater than the second preset threshold.

According to an embodiment of the present disclosure, the different target ultrasound carrier frequency bands include one of the following: different target ultrasonic carrier frequency bands have different pairing identification frequencies; or different target ultrasonic carrier frequency bands have different pairing identification frequencies, and the pairing identification frequencies correspond to unique pairing groups; or different target ultrasonic carrier frequency bands have different pairing identification frequencies, and preset frequency intervals between coding frequencies for coding the characters in the preset system in the different target ultrasonic carrier frequency bands have differences; or different target ultrasonic carrier frequency bands have different pairing identification frequencies, and the pairing identification frequencies correspond to unique pairing groups; the preset frequency intervals between the coding frequencies used for coding the characters in the preset system in different target ultrasonic carrier frequency bands are different; wherein the pairing group is a pairing group formed by the conference device and the conference control device.

According to an embodiment of the present disclosure, the above method further includes: receiving an ultrasonic carrier wave result signal based on an audio module of the conference control equipment; the ultrasonic carrier wave result signal is obtained by encoding an operation execution result by conference equipment based on corresponding target ultrasonic wave carrier wave information; analyzing and decoding the ultrasonic carrier wave result signal to obtain an operation execution result aiming at the ultrasonic carrier wave control signal; and updating and presenting the conference control interface according to the execution result of the operation.

According to an embodiment of the present disclosure, analyzing and decoding the ultrasonic carrier result signal to obtain an operation execution result for the ultrasonic carrier control signal includes: analyzing the signal head of the ultrasonic carrier wave result signal to obtain a pairing group corresponding to the pairing identification frequency; determining a target result signal body corresponding to the matched conference equipment and the matched conference control equipment according to the matched set; and decoding the target result signal body according to the coding frequency in the target ultrasonic carrier frequency band corresponding to the conference control equipment to obtain an operation execution result aiming at the ultrasonic carrier control signal.

In a second aspect, embodiments of the present disclosure provide a method of conference control. The method is applied to conference equipment and comprises the following steps: based on the audio module of the conference equipment, receiving ultrasonic carrier control signals sent by one or more conference control equipment; analyzing and decoding the ultrasonic carrier control signal to obtain conference control operation information aiming at the conference equipment; executing the operation indicated by the conference control operation information on the conference equipment to obtain an operation execution result; encoding the operation execution result based on the target ultrasonic carrier information corresponding to the conference equipment to obtain an ultrasonic carrier result signal; the target ultrasonic carrier information is used for distinguishing a controlled object in at least one dimension of amplitude or frequency; and transmitting the ultrasonic carrier wave result signal to the corresponding conference control equipment based on the audio module of the conference equipment.

According to an embodiment of the present disclosure, analyzing and decoding the ultrasonic carrier control signal to obtain conference control operation information for the conference device includes: analyzing the signal head of the ultrasonic carrier control signal to obtain a pairing group corresponding to the pairing identification frequency; the pairing identification frequency is used for distinguishing the identification frequencies of different conference devices and corresponds to a unique pairing group; determining a target control signal body corresponding to the matched conference equipment and the matched conference control equipment according to the matched set; and decoding the target control signal body according to the coding frequency in the target ultrasonic carrier frequency band corresponding to the conference equipment to obtain conference control operation information aiming at the conference equipment.

In a third aspect, embodiments of the present disclosure provide a conference control device. The conference control device includes: the device comprises a control information receiving module, an ultrasonic carrier information determining module, a first coding module and a control signal transmitting module. The control information receiving module is used for receiving conference control operation information aiming at target conference equipment. The ultrasonic carrier wave information determining module is used for determining target ultrasonic wave carrier wave information corresponding to the target conference equipment; the target ultrasonic carrier information is used to distinguish between objects to be controlled in at least one dimension of amplitude or frequency. The first encoding module is used for encoding the conference control operation information based on the target ultrasonic carrier information to obtain an ultrasonic carrier control signal for the target conference equipment. The control signal transmitting module is arranged in the audio module of the conference control device and is used for transmitting the ultrasonic carrier control signal to the target conference device.

According to an embodiment of the present disclosure, the conference control apparatus further includes: the device comprises a result receiving module, a first decoding module and an interface updating module. The result receiving module is arranged in the audio module of the conference control equipment and is used for receiving ultrasonic carrier result signals; the ultrasonic carrier wave result signal is obtained by encoding an operation execution result based on corresponding target ultrasonic carrier wave information by the conference equipment. The first decoding module is used for analyzing and decoding the ultrasonic carrier wave result signal to obtain an operation execution result aiming at the ultrasonic carrier wave control signal. And the interface updating module is used for updating and presenting the conference control interface according to the operation execution result.

In a fourth aspect, embodiments of the present disclosure provide a conference device. The conference device includes: the device comprises an ultrasonic control signal receiving module, a second decoding module, an operation executing module, a second encoding module and a result transmitting module. The ultrasonic control signal receiving module is arranged in the audio module of the conference equipment and is used for receiving ultrasonic carrier control signals sent by one or more conference control equipment. The second decoding module is used for analyzing and decoding the ultrasonic carrier control signal to obtain conference control operation information aiming at the conference equipment. The operation execution module is used for executing the operation indicated by the conference control operation information on the conference equipment to obtain an operation execution result. The second encoding module is used for encoding the operation execution result based on the target ultrasonic carrier wave information corresponding to the conference equipment to obtain an ultrasonic carrier wave result signal; the target ultrasonic carrier information is used to distinguish between objects to be controlled in at least one dimension of amplitude or frequency. The result sending module is arranged in the audio module of the conference equipment and is used for sending the ultrasonic carrier result signal to the corresponding conference control equipment.

In a fifth aspect, embodiments of the present disclosure provide a conference control system. The conference control system includes: conference control device and conference device. The above-described conference control apparatus is configured to execute the method of conference control provided in the above-described first aspect, or the above-described conference control apparatus; the conference apparatus is for performing the method of conference control provided in the second aspect, or is a conference apparatus as described above.

The technical scheme provided by the embodiment of the disclosure at least has part or all of the following advantages:

The control signals are transmitted between the conference control equipment and the controlled target conference equipment based on the ultrasonic waves with the frequency larger than 20kHz, so that the audio modules (self-contained hardware equipment) of the conference control equipment and the conference equipment can be effectively utilized to realize data transmission and reception, a corresponding wireless communication channel is not required to be additionally established, and the ultrasonic waves can be used for efficiently transmitting the control signals in a short distance, so that the conference control equipment is convenient and practical; because the above-mentioned target ultrasonic carrier information is used for distinguishing the controlled object in at least one dimension of amplitude or frequency, by determining the target ultrasonic carrier information corresponding to the target conference device, under the scene that one or more conference devices exist in one conference room or conference devices in adjacent conference rooms are all controlled based on ultrasonic waves, corresponding encoding processing is performed on the controlled object based on different target ultrasonic carrier information, and based on the difference of amplitude or frequency, different conference devices can distinguish which ultrasonic carrier control signals are control signals for themselves and which ultrasonic carrier control signals are interference signals, so that directional control between the conference control device and the target conference device is realized and interference of a plurality of control signal transmission processes based on ultrasonic waves is avoided.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.

In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings that are required to be used in the description of the embodiments or the related art will be briefly described below, and it will be apparent to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.

Fig. 1 schematically illustrates a system architecture of a conference control system and a scene diagram for conference control according to an embodiment of the present disclosure;

Fig. 2 schematically illustrates a flow chart of a method of conference control applied to a conference control device according to an embodiment of the present disclosure;

FIG. 3 schematically illustrates a detailed implementation flowchart of step S220, according to an embodiment of the present disclosure;

FIG. 4 schematically illustrates a detailed implementation flowchart of step S230 according to an embodiment of the present disclosure;

fig. 5 schematically illustrates a flow chart of a method of conference control applied to a conference control device according to another embodiment of the present disclosure;

Fig. 6 schematically illustrates a flow chart of a method of conference control applied to a conference device according to an embodiment of the present disclosure;

fig. 7 schematically shows a block diagram of a conference control device according to an embodiment of the present disclosure;

fig. 8 schematically shows a block diagram of a conference apparatus according to an embodiment of the present disclosure.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present disclosure, and it is apparent that the described embodiments are some, but not all, embodiments of the present disclosure. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the disclosure, are within the scope of the disclosure.

Fig. 1 schematically illustrates a system architecture of a conference control system and a scene diagram for conference control according to an embodiment of the present disclosure.

Referring to fig. 1, a conference control system 100 provided in an embodiment of the present disclosure includes: conference control device 110 and conference device 120. The conference control apparatus 110 described above is used to perform the conference control method provided by the second embodiment, and the conference apparatus 120 described above is used to perform the conference control method provided by the third embodiment.

The conference control device 110 and the conference device 120 transmit a control command (corresponding to an ultrasonic carrier control signal) and an operation execution result (corresponding to an ultrasonic carrier result signal) after executing the control command by using ultrasonic waves.

The conference control device 110 may be an electronic device having an audio module and a processing module, which may include, for example, but is not limited to: smart phones, notebook computers, tablet computers, smart watches, wearable smart devices, and the like.

The conference control device 110 described above is installed with a control class application for performing conference device control (the control class application is used to execute the method of conference control provided by the subsequent second embodiment). The control class application described above is capable of calling the audio module X in the conference control device 110, i.e. has a call right to the audio module X. It will be appreciated that other applications in the conference control device 110 described above (e.g., music playing type applications, voice navigation type applications, etc.) may also have call rights to the audio module.

Conference device 120 is an electronic device or device system having a display (which may be a hardware display or a projection-type device) and audio modules, and may include, for example, but not limited to: a conference integrated machine, a multimedia device, or a conference system including a microphone, a speaker, a display device, a hardware device such as a network connection device (e.g., a switch), and conference software, etc. The conference device 120 may be provided with a device-side application (a method for executing conference control provided in the third embodiment, which is described later) configured to receive a control instruction of the control-class application and execute a corresponding control operation on the conference device 120 according to the control instruction, to obtain an operation execution result.

In the related art, a two-dimensional code is usually attached to a control host of a conference device, and in the case of using the conference device, conference personnel usually scan the two-dimensional code on the control host by using the conference control device (such as a notebook computer or a smart phone), and can identify a unique identifier of the conference device and establish a wireless transmission channel (needing to use a network connection device) between the conference control device and the conference device through scanning, and the wireless transmission channel is generally established and controlled based on a local area network (such as wifi) or based on a 4G or 5G network.

However, the two-dimension code needs to be scanned in the mode, and data transmission is needed by means of a wireless communication network, so that delay, blocking and the like exist in control of conference equipment in some conference rooms with poor wireless communication network signals, and the conference experience is poor.

In the embodiment of the disclosure, only the conference control device 110 and the audio module of the conference device 120 are required to be utilized, no additional wireless communication channel is required to be established, and no two-dimension code scanning is required, so that the conference control process is simplified, and the control process is convenient and efficient.

In some embodiments, the control class application of the conference control device 110 described above is used to perform the following steps or the conference control device described above has functional modules (which may be hardware modules or software modules, etc.) for implementing the following steps: receiving conference control operation information for a target conference device; determining target ultrasonic carrier wave information corresponding to the target conference equipment; the target ultrasonic carrier information is used for distinguishing a controlled object in at least one dimension of amplitude or frequency; encoding the conference control operation information based on the target ultrasonic carrier information to obtain an ultrasonic carrier control signal for the target conference equipment; and transmitting the ultrasonic carrier control signal to the target conference equipment based on the audio module of the conference control equipment.

In some embodiments, the control class application of the conference control device 110 described above is further used to perform the following steps or the conference control device described above has functional modules (which may be hardware modules or software modules, etc.) for implementing the following steps: receiving an ultrasonic carrier wave result signal based on an audio module of the conference control equipment; the ultrasonic carrier wave result signal is obtained by encoding an operation execution result by conference equipment based on corresponding target ultrasonic wave carrier wave information; analyzing and decoding the ultrasonic carrier wave result signal to obtain an operation execution result aiming at the ultrasonic carrier wave control signal; and updating and presenting the conference control interface according to the execution result of the operation.

In some embodiments, the device-side application of the conference device 120 is configured to perform the following steps or the conference device has a functional module (which may be a hardware module or a software module, etc.) configured to implement the following steps: based on the audio module of the conference equipment, receiving ultrasonic carrier control signals sent by one or more conference control equipment; analyzing and decoding the ultrasonic carrier control signal to obtain conference control operation information aiming at the conference equipment; executing the operation indicated by the conference control operation information on the conference equipment to obtain an operation execution result; encoding the operation execution result based on the target ultrasonic carrier information corresponding to the conference equipment to obtain an ultrasonic carrier result signal; the target ultrasonic carrier information is used for distinguishing a controlled object in at least one dimension of amplitude or frequency; and transmitting the ultrasonic carrier wave result signal to the corresponding conference control equipment based on the audio module of the conference equipment.

The steps or more functional modules that are executed by conference control device 110 and conference device 120 in the first embodiment may be combined with the detailed description of the subsequent embodiments, and only the overall description of the system architecture in the first embodiment will be performed, and the description will not be repeated.

A second exemplary embodiment of the present disclosure provides a method of conference control applied to a conference control device.

Fig. 2 schematically illustrates a flowchart of a method of conference control applied to a conference control device according to an embodiment of the present disclosure.

Referring to fig. 2, a method of conference control applied to a conference control device 110 includes the steps of: s210, S220, S230 and S240. In some embodiments, steps S210-S240 described above may be performed by a control class application on conference control device 110.

In step S210, conference control operation information for a target conference device is received.

In some implementations, the target conference device and the conference control device are devices located in a same conference room, and one conference control device is configured to control one target conference device in the same conference room, with a one-to-one control relationship.

In other implementations, one conference control device may control multiple target conference control devices within the same conference room, with one-to-many control relationships.

In still other implementations, multiple conference control devices may control one target conference control device within the same conference room, with a many-to-one control relationship.

In some embodiments, referring to fig. 1, a control class application on a conference control device 110 has a conference control interface 111, where the conference control device is configured to present icons of one or more controlled objects, such as a conference device icon 101 illustrated in fig. 1, and control function keys 102 for performing a conference device control operation through user interaction, such as, but not limited to, mute control keys, adjust volume control keys, page-turning control keys, and screen-recording control keys illustrated in fig. 1, where the control function keys may be presented in a manner of a plurality of icons being tiled, or may be presented in a hierarchical form, for example, an option for two objects, i.e., a microphone and a speaker, may appear after the mute control key is clicked, and the user may select mute or both select mute. The user may issue conference control operation information for the conference device 120 to the conference control device 110 by operating the control function key 102 described above, for example, the user may click on the mute control key for the microphone, thereby regarding that conference control operation information for the microphone of the conference device to be mute-operated is received at the conference control device. In addition, the conference control interface 111 may also display the state of the controlled object, for example, may display the operating state of a microphone, a speaker, a screen projecting function, etc., and in fig. 1, the microphone icon 1111 indicates the state in which the microphone is operating normally.

In step S220, determining target ultrasonic carrier information corresponding to the target conference device; the target ultrasonic carrier information is used to distinguish between objects to be controlled in at least one dimension of amplitude or frequency.

The above-mentioned controlled object is a conference device, because in a real conference scene, there may be a situation that one or more conference rooms are simultaneously in a conference, and in a situation that a plurality of conference rooms are adjacent, it is possible that an ultrasonic carrier signal in one conference room is transmitted to another conference room, and how to distinguish the ultrasonic carrier control signals for different controlled objects is a key problem in the process of encoding, transmitting and decoding conference control instructions based on ultrasonic waves when the conference device in another conference room receives the ultrasonic carrier control signals. In other words, how to enable a certain conference device to recognize a control signal for itself in case of simultaneously receiving a plurality of ultrasonic carrier signals for different conference devices is a key issue.

The embodiment of the disclosure provides a thought for distinguishing controlled objects based on different ultrasonic carrier information, and the difference of at least one dimension of amplitude or frequency of the ultrasonic carrier information is regulated and controlled to make the target ultrasonic carrier information corresponding to each controlled object have a difference, so that the method can be used for pointing to different controlled objects and realizing the directional encoding and decoding processes of ultrasonic waves. Even in some embodiments, the control object and the controlled object are associated, so that the processes of directional encoding, decoding and directional feedback execution results of ultrasonic waves are realized. The intensity of the ultrasonic carrier control signals received by other conference devices by different conference devices is very weak through the amplitude regulation and control strategy, and the ultrasonic carrier control signals can be basically used as noise without being told; through the frequency regulation strategy, if one conference device can receive a plurality of ultrasonic carrier control signals with corresponding intensity aiming at different conference devices, the ultrasonic carrier control signals aiming at the conference device can be identified and correspondingly decoded based on the difference of the frequencies.

Fig. 3 schematically illustrates a detailed implementation flowchart of step S220 according to an embodiment of the present disclosure.

According to an embodiment of the present disclosure, the target ultrasonic carrier information includes information in two dimensions of frequency and amplitude (or the amplitude may correspond to power), and referring to fig. 3, in the step S220, the target ultrasonic carrier information corresponding to the target conference device is determined, including the following steps: s310 and S320.

In step S310, determining a target ultrasonic carrier frequency band corresponding to the target conference device according to a mapping table between the conference device and the ultrasonic carrier frequency band; the mapping table stores the corresponding relation among the conference room, the conference equipment and the ultrasonic carrier frequency bands.

Step S310 is a determination of target ultrasonic carrier information of the target conference device in the frequency dimension.

In step S320, a target ultrasonic power or a target ultrasonic amplitude corresponding to the target conference device is determined according to the area information of the conference room where the conference control device and the target conference device are located and the internal configuration information of the conference room. For example, the ultrasonic power or the ultrasonic amplitude corresponding to the different conference room areas and internal structures may be determined by performing an actual test or a model simulation for the different conference rooms, stored in another mapping table for representing the correspondence between conference room information and ultrasonic amplitude or power, and matching and reading of the corresponding information from the mapping table when step S320 is performed.

Step S320 is a determination of the target ultrasonic carrier information of the target conference device in the amplitude (or described as power) dimension.

According to an embodiment of the present disclosure, in the correspondence relation stored in the above-described mapping table, there is at least one of the following cases a to D.

In case a, under the condition that different first conference devices and second conference devices in the same conference room are jointly displayed, the first conference device and the second conference device have the same target ultrasonic carrier frequency band. For example, conference device 1 and conference device 2 are to jointly display conference content in a conference room, and specifically, display screen 1 of conference device 1 and display screen 2 of conference device 2 synchronously display the same content; or the display screen 2 of the conference device 2 is used as an extension screen, a split screen, a sub-screen, or the like of the display screen 1 of the conference device 1, for displaying part of the content or the supplementary content in the display screen 1, or the like, and the part of the content or the supplementary content in the display screen 1 can be presented on the display screen 2; or the detailed information of a certain content in the display 1 is presented on the display 2, etc.

In case B, in the case where different first conference device and second conference device in the same conference room are independently displayed, the first conference device and the second conference device have different target ultrasonic carrier frequency bands. The content of independent presentation is that no association of presentation process is performed between the first conference device and the second conference device, and each is controlled independently for presentation.

In the case B, by means of the frequency regulation policy, if one conference device can receive multiple ultrasonic carrier control signals with corresponding intensity for different conference devices, the ultrasonic carrier control signals for the conference device can be identified and decoded correspondingly based on the difference of frequencies.

In case C, in the case where the first conference room and the second conference room are different conference rooms, and the third conference device of the first conference room and the fourth conference device of the second conference room are displayed independently, the target ultrasonic power or the target ultrasonic amplitude of the third conference device meets the following conditions: the signal transmission distance in the first meeting room is met, and the signal transmission distance in the second meeting room is attenuated to be below a first preset threshold value after the signal transmission distance in the first meeting room is reached; the target ultrasonic power or the target ultrasonic amplitude of the fourth conference device satisfies the following conditions: the signal transmission distance in the second conference room is met, and the signal transmission distance in the second conference room is attenuated to be below a second preset threshold value after reaching the first conference room; the third conference device and the fourth conference device have the same target ultrasonic carrier frequency band (the same frequency dimension).

In the case C, by setting the regulation policy of the amplitude (or described as the power), the intensity of the ultrasonic carrier control signal received by other conference devices by different conference devices is very weak, and the signal can be basically used as noise without being ignored. Since the target ultrasonic power or the target ultrasonic amplitude for the third conference device in the first conference room can ensure the signal transmission distance in the first conference room and is attenuated below the first threshold (for example, 2% -5% of the original signal strength) after reaching the second conference room, for the fourth conference device in the second conference room, the received target ultrasonic power or amplitude and the like corresponding to the ultrasonic carrier control signal (for example, the ultrasonic carrier control signal T3) for the third conference device are very small, and compared with the ultrasonic carrier control signal (for example, the ultrasonic carrier control signal T4) for the fourth conference device with larger signal strength, the T3 signal can be almost ignored as background noise, and even if the third conference device and the fourth conference device have the same target ultrasonic carrier frequency band, by setting the amplitude or power, the interference of the T3 signal on the T4 signal to be decoded by the fourth conference device is very small. Likewise, the T4 signal has little interference with the T3 signal to be decoded by the third conference device.

In case D, in the case where the third conference device of the first conference room and the fourth conference device of the second conference room are displayed independently, the target ultrasonic power or the target ultrasonic amplitude of the third conference device meets the following conditions: the signal transmission distance in the first meeting room is met, and the signal transmission distance in the second meeting room is attenuated to be below a third preset threshold value after the signal transmission distance in the first meeting room is reached; the target ultrasonic power or the target ultrasonic amplitude of the fourth conference device satisfies the following conditions: the signal transmission distance in the second conference room is met, and the signal transmission distance in the second conference room is attenuated to be below a fourth preset threshold value after reaching the first conference room; the third conference device and the fourth conference device have different target ultrasonic carrier frequency bands (different frequency dimensions); wherein the third preset threshold is greater than the first preset threshold, and the fourth preset threshold is greater than the second preset threshold.

In the case D, by setting the strategy of comprehensively adjusting and controlling the amplitude and the frequency, the intensity of the ultrasonic carrier control signals of other conference devices received by different conference devices is very weak by setting the strategy of adjusting and controlling the amplitude, and meanwhile, in order to further reduce the interference between the ultrasonic carrier control signals with different intensities, in combination with the strategy of adjusting and controlling the frequency, one conference device can also identify and correspondingly decode the ultrasonic carrier control signals of the conference device based on the difference of the frequency if the conference device can receive a plurality of ultrasonic carrier control signals with different intensities aiming at different conference devices.

In some embodiments, the different target ultrasound carrier frequency bands include one of the following: different target ultrasonic carrier frequency bands have different pairing identification frequencies; or different target ultrasonic carrier frequency bands have different pairing identification frequencies, and the pairing identification frequencies correspond to unique pairing groups; or different target ultrasonic carrier frequency bands have different pairing identification frequencies, and preset frequency intervals between coding frequencies for coding the characters in the preset system in the different target ultrasonic carrier frequency bands have differences; or different target ultrasonic carrier frequency bands have different pairing identification frequencies, and the pairing identification frequencies correspond to unique pairing groups; the preset frequency intervals between the coding frequencies used for coding the characters in the preset system in different target ultrasonic carrier frequency bands are different; wherein the pairing group is a pairing group formed by the conference device and the conference control device.

By determining the target ultrasonic carrier wave information corresponding to the target conference equipment, under the scene that one or more conference equipment exists in one conference room or conference equipment in a plurality of adjacent conference rooms is controlled based on ultrasonic waves, corresponding coding processing is carried out on a controlled object based on different target ultrasonic carrier wave information, different conference equipment can distinguish which ultrasonic carrier wave control signals are control signals for the conference equipment and which ultrasonic carrier wave control signals are interference signals based on the difference of amplitude or frequency, and directional control between the conference control equipment and the target conference equipment is realized and interference of a plurality of control signal transmission processes based on the ultrasonic waves is avoided.

For example, the transmission bands of control signals corresponding to conference devices (as controlled devices) of different conference rooms have differences; for example, the starting frequency (for example, as the pairing identification frequency) of the transmission band of the control signal corresponding to the conference equipment A is 20000Hz, the interval of the adopted carrier wave bands is for example 100Hz, and the control command after coding (binary, 8-ary, 16-ary or the like) is transmitted; the starting frequency (for example, as a pairing identification frequency) corresponding to the control signal corresponding to the conference equipment B is 20100Hz; the adopted carrier wave band interval is 120Hz, for example, and the coded control instruction is transmitted; which are distinguished over the transmission band.

In step S230, the conference control operation information is encoded based on the target ultrasonic carrier information, so as to obtain an ultrasonic carrier control signal for the target conference device.

Fig. 4 schematically shows a detailed implementation flowchart of step S230 according to an embodiment of the present disclosure.

According to an embodiment of the present disclosure, referring to fig. 4, in the step S230, the conference control operation information is encoded based on the target ultrasonic carrier information to obtain an ultrasonic carrier control signal for the target conference device, which includes the following steps: s410, S420, S430, S440, and S450.

In step S410, determining the pairing identification frequency in the target ultrasonic carrier frequency band as a sequence header; the pairing identification frequency is used as an identification frequency for distinguishing different conference devices.

For example, the pairing identification frequency may employ a starting frequency in the target ultrasonic carrier band. It will be appreciated that frequencies at other locations of the target ultrasound carrier frequency band may also be employed as the pairing identification frequency.

In some embodiments, the scenario in which different conference devices correspond to different pairing identification frequencies includes: a plurality of different conference devices in the same conference room correspond to different pairing identification frequencies; different pairing identification frequencies correspond to each other among the conference devices in different conference rooms.

In some embodiments, for the same conference device, in the case of having a corresponding one or more conference control devices, the pairing groups formed by the plurality of conference control devices and the corresponding conference device have the same pairing identification frequency, for example, the pairing identification frequencies of the target conference device H and the two conference control devices Z1 and Z2 are both: F0.

In some embodiments, the pairing identification frequency corresponds to a unique pairing group, and the pairing group is a pairing group formed by the conference device and the conference control device; for example, when a plurality of conference control devices connect to the same target conference device, different pairing groups may be distinguished based on different pairing identification frequencies. For the same conference device, in the case of having a plurality of conference control devices, a set of pairing identification frequencies for the conference device may be constructed for corresponding to different conference control devices. For example, the target conference device H and the two conference control devices Z1 and Z2 form a pairing group H-Z1 and a pairing group H-Z2; the pairing identification frequency corresponding to the pairing group H-Z1 is as follows: f1, the pairing identification frequency corresponding to the pairing group H-Z2 is as follows: F2. in this way, different pairing groups can be distinguished under the condition that the same target conference equipment and a plurality of conference control equipment have pairing relations, so that the uniqueness of pairing group identification is ensured, and the target conference equipment has specific direction in the process of feeding back the operation execution result and decoding the operation execution result of each conference control equipment; so that the scene is expanded and a plurality of conferences are synchronously carried out without mutual interference.

For example, in some embodiments, where the supported highest transmission frequency is determined to be 22kHz based on shannon's principle, based on a sampling rate of 44K for the audio module, the range of the targeted ultrasound carrier frequency band may be a frequency band in the range of 20kHz to 22kHz or less.

In step S420, the conference control operation information is parsed into a character string corresponding to a preset system. The preset system comprises: binary, octal, and hexadecimal.

In step S430, a sequence body for encoding the character string is generated according to the encoding frequency used for encoding the character of the preset system in the target ultrasonic carrier frequency band; the corresponding coding frequencies of the different characters of the preset system have preset frequency intervals.

In some embodiments, 16 is taken as an example of a preset system, 3 groups are exemplified as pairing groups, in order to ensure that signals transmitted by ultrasonic waves do not interfere with human ears and interference among coding frequencies is reduced as much as possible, frequency intervals are 100Hz, and particularly, the frequency intervals can be selected to be 80-200 Hz through experiments; the specific range may be adjusted. As an example, the 3 pairing groups respectively correspond to an initial frequency of 20000Hz, 20100Hz, 20200Hz, respectively, a total of 16 frequencies (20300 Hz-21800 Hz) per increment of 100Hz starting from 20300Hz respectively correspond to the frequencies responsible for transmitting 16-ary encoded characters 0 to F, i.e. 20300Hz is used as the encoding frequency of character 0 in 16-ary (i.e. frequency 20300Hz corresponds to character 0 in hexadecimal), 20400Hz is used as the encoding frequency of character 1 in 16-ary, and so on, 21800Hz is used as the encoding frequency of character F in 16-ary.

And splicing the coding frequencies in sequence to obtain a sequence body. Depending on the capacity of the ultrasound transmission (e.g., how long the frequency is transmitted at a time), a control command (depending on the length of the code length of the control command) may be sent one or more times.

In step S440, the sequence header and the sequence body are spliced to obtain a coded frequency sequence.

In step S450, the amplitude of the code frequency sequence is modulated to the target ultrasonic amplitude, or the power of the code frequency sequence is modulated to the target ultrasonic power; and the coded frequency sequence obtained after modulation is used as the ultrasonic carrier control signal.

In the embodiment including steps S410 to S450, in the encoding process, the encoding frequency sequence obtained by encoding includes a sequence header and a sequence body, and the sequence body is obtained by frequency encoding the encoding frequency according to the character string corresponding to the conference control operation information; the sequence head is obtained by determining the pairing identification frequency of the target ultrasonic carrier frequency band, the pairing identification frequency is used as the identification frequency for distinguishing different conference devices, and the distinguishing of the different conference devices can be realized by identifying the sequence head, so that the directional control of the different conference devices is realized. In some embodiments, the starting frequency of the target ultrasonic carrier frequency band can be used as a distinguishing mark capable of pointing to different conference devices, so that the method is convenient and simple to set. It will be appreciated that frequencies at other locations of the target ultrasound carrier frequency band may also be employed as the pairing identification frequency.

In some embodiments, the pairing identification frequency corresponds to a unique pairing group formed by the conference control device and the conference device, namely, the conference control device and the corresponding conference device can be pointed at the same time, and the pairing identification frequency also has specific pointing in the process of feeding back the operation execution result and decoding the operation execution result; so that the scene is expanded and a plurality of conferences are synchronously carried out without mutual interference.

In step S240, the ultrasonic carrier control signal is sent to the target conference device based on the audio module of the conference control device.

Referring to fig. 1, conference control device 110 transmits an ultrasonic carrier control signal to conference device 120 based on audio module X.

In the embodiment including steps S210 to S240, by transmitting a control signal between the conference control device and the controlled target conference device based on the ultrasonic wave with the frequency greater than 20kHz, data transmission and reception can be effectively realized by using the audio modules (self-contained hardware devices) of the conference control device and the conference device, no additional establishment of a corresponding wireless communication channel is required, and the ultrasonic wave can efficiently transmit the control signal in a short distance, so that the method is convenient and practical; because the above-mentioned target ultrasonic carrier information is used for distinguishing the controlled object in at least one dimension of amplitude or frequency, by determining the target ultrasonic carrier information corresponding to the target conference device, under the scene that one or more conference devices exist in one conference room or conference devices in adjacent conference rooms are all controlled based on ultrasonic waves, corresponding encoding processing is performed on the controlled object based on different target ultrasonic carrier information, and based on the difference of amplitude or frequency, different conference devices can distinguish which ultrasonic carrier control signals are control signals for themselves and which ultrasonic carrier control signals are interference signals, so that directional control between the conference control device and the target conference device is realized and interference of a plurality of control signal transmission processes based on ultrasonic waves is avoided.

Fig. 5 schematically illustrates a flow chart of a method of conference control applied to a conference control device according to another embodiment of the present disclosure.

The conference control method applied to the conference control apparatus includes the following steps in addition to the above steps S210 to S240: s510, S520, and S530, only steps S510 to S530 are illustrated in fig. 5 for simplicity of illustration, and steps S510 to S530 are performed after step S240.

In step S510, an ultrasonic carrier result signal is received based on the audio module of the conference control device. The ultrasonic carrier wave result signal is obtained by encoding an operation execution result based on corresponding target ultrasonic carrier wave information by the conference equipment.

For example, referring to fig. 1, after the device-side application of conference device 120 receives an ultrasonic carrier control signal indicating to mute a microphone through audio module Y, the device-side application performs an operation of muting the microphone, resulting in an operation execution result. Then, the operation execution result is encoded based on the target ultrasonic carrier information corresponding to the conference device 120, so as to obtain an ultrasonic carrier result signal, and the ultrasonic carrier result signal is sent to the audio module X of the conference control device 110 through the audio module Y. This procedure corresponds to a method of conference control to be performed at the conference device end, and can be understood in connection with the subsequent third embodiment.

In step S520, the ultrasonic carrier result signal is analyzed and decoded to obtain an operation execution result for the ultrasonic carrier control signal.

According to an embodiment of the present disclosure, in the step S520, the analyzing and decoding process is performed on the ultrasonic carrier result signal to obtain an operation execution result for the ultrasonic carrier control signal, which includes: analyzing the signal head of the ultrasonic carrier wave result signal to obtain a pairing group corresponding to the pairing identification frequency; the pairing identification frequency is used for distinguishing the identification frequencies of different conference devices and corresponds to a unique pairing group; determining a target result signal body corresponding to the matched conference equipment and the matched conference control equipment according to the matched set; and decoding the target result signal body according to the coding frequency in the target ultrasonic carrier frequency band corresponding to the conference control equipment to obtain an operation execution result aiming at the ultrasonic carrier control signal.

Since there are agreed encoding and decoding rules between the conference control device and the conference device, the encoding rules of the encoding side can be matched when the decoding side decodes; in other embodiments, in order to increase the security of signal transmission or avoid being cracked, encryption algorithms or security policies may be added to the encoding rules.

In step S530, the conference control interface is updated and presented according to the result of the above operation.

For example, referring to fig. 1, if the microphone of the conference device is mute as a result of the operation, the conference control device 110 updates the conference control interface 111, and the microphone icon on the updated conference control interface 111' changes state, so as to correspondingly present the microphone icon 1112 that is already in the mute state.

A third exemplary embodiment of the present disclosure provides a method of conference control applied to a conference device.

Fig. 6 schematically illustrates a flow chart of a method of conference control applied to a conference device according to an embodiment of the present disclosure.

Referring to fig. 6, a method for conference control applied to a conference device according to an embodiment of the present disclosure includes the following steps: s610, S620, S630, S640 and S650.

In step S610, based on the audio module of the conference device, an ultrasonic carrier control signal sent by one or more conference control devices is received.

In step S620, the above-mentioned ultrasonic carrier control signal is analyzed and decoded, so as to obtain conference control operation information for the above-mentioned conference device.

In step S630, an operation indicated by the conference control operation information is performed on the conference device, and an operation execution result is obtained.

For example, referring to fig. 1, in the foregoing steps S610 to S630, after the device-side application of the conference device 120 receives the ultrasonic carrier control signal indicating to mute the microphone through the audio module Y, the device-side application performs an operation of muting the microphone, and a result of performing the operation is obtained.

In step S640, the result of the operation execution is encoded based on the target ultrasonic carrier information corresponding to the conference device, so as to obtain an ultrasonic carrier result signal.

The target ultrasonic carrier information is used to distinguish between objects to be controlled in at least one dimension of amplitude or frequency.

In step S650, the ultrasonic carrier result signal is sent to the corresponding conference control device based on the audio module of the conference device.

In some implementation scenarios, the audio module of the conference device is in a sharing mode, and can be invoked by a plurality of applications (such as a device-side application and other applications corresponding to the present application, such as a music playing application, a voice or video call application, etc.) installed on the audio module; in this case, call information of a plurality of applications when calling the audio module is stored in the data queue according to time sequence, and the audio module analyzes and executes each call information. Since the processing speed is high, the interval is small for the human ear, and it can be almost regarded as returning to the conference control apparatus immediately after processing is performed after the information transmission of the conference control apparatus.

In the embodiment including steps S610 to S650, by transmitting a control signal between the conference control device and the controlled target conference device based on the ultrasonic wave with the frequency greater than 20kHz, data transmission and reception can be effectively realized by using the audio modules (self-contained hardware devices) of the conference control device and the conference device, no additional establishment of a corresponding wireless communication channel is required, and the ultrasonic wave can efficiently transmit the control signal in a short distance, so that the method is convenient and practical; because the above-mentioned target ultrasonic carrier information is used for distinguishing the controlled object in at least one dimension of amplitude or frequency, by determining the target ultrasonic carrier information corresponding to the target conference device, under the scene that one or more conference devices exist in one conference room or conference devices in adjacent conference rooms are all controlled based on ultrasonic waves, corresponding encoding processing is performed on the controlled object based on different target ultrasonic carrier information, and based on the difference of amplitude or frequency, different conference devices can distinguish which ultrasonic carrier control signals are control signals for themselves and which ultrasonic carrier control signals are interference signals, so that directional control between the conference control device and the target conference device is realized and interference of a plurality of control signal transmission processes based on ultrasonic waves is avoided.

A fourth exemplary embodiment of the present disclosure provides a conference control device.

Fig. 7 schematically shows a block diagram of a conference control device according to an embodiment of the present disclosure.

Referring to fig. 7, a conference control device 700 provided by an embodiment of the present disclosure includes: a control information receiving module 701, an ultrasonic carrier information determining module 702, a first encoding module 703 and a control signal transmitting module 704.

The control information receiving module 701 is configured to receive conference control operation information for a target conference device.

The ultrasonic carrier information determining module 702 is configured to determine target ultrasonic carrier information corresponding to the target conference device; the target ultrasonic carrier information is used to distinguish between objects to be controlled in at least one dimension of amplitude or frequency.

The first encoding module 703 is configured to perform encoding processing of the conference control operation information based on the target ultrasonic carrier information, so as to obtain an ultrasonic carrier control signal for the target conference device.

The control signal transmitting module 704 is disposed in the audio module of the conference control device, and is configured to transmit the ultrasonic carrier control signal to the target conference device.

The implementation details and the beneficial effects of the above-mentioned further functional modules or specific individual functional modules included in the conference control device 700 may refer to the detailed description of the method for conference control applied to the conference control device in the foregoing second embodiment, which is not repeated here.

A fifth exemplary embodiment of the present disclosure provides a conference apparatus.

Referring to fig. 8, the conference apparatus 800 includes: an ultrasonic control signal receiving module 801, a second decoding module 802, an operation executing module 803, a second encoding module 804 and a result transmitting module 805.

The ultrasonic control signal receiving module 801 is disposed in the audio module of the conference device, and is configured to receive ultrasonic carrier control signals sent by one or more conference control devices.

The second decoding module 802 is configured to parse and decode the ultrasonic carrier control signal to obtain conference control operation information for the conference device.

The operation execution module 803 is configured to execute an operation indicated by the conference control operation information on the conference device, to obtain an operation execution result.

The second encoding module 804 is configured to encode the operation execution result based on the target ultrasonic carrier information corresponding to the conference device, to obtain an ultrasonic carrier result signal; the target ultrasonic carrier information is used to distinguish between objects to be controlled in at least one dimension of amplitude or frequency.

The result sending module 805 is disposed in the audio module of the conference device, and is configured to send the ultrasonic carrier result signal to a corresponding conference control device.

Further functional modules or implementation details, advantageous effects, etc. of the functional modules or specific individual functional modules included in the conference device 800 described above may be referred to in the detailed description of the method for conference control applied to the conference device in the foregoing third embodiment.

Any of the functional modules included in the conference control device 700 and the conference device 800 described above may be combined and implemented in one module, or any of the modules may be split into a plurality of modules. Or at least some of the functionality of one or more of the modules may be combined with, and implemented in, at least some of the functionality of other modules. At least one of the functional modules included in conference control device 700 and conference device 800 described above may be implemented, at least in part, as a hardware circuit, such as a Field Programmable Gate Array (FPGA), a Programmable Logic Array (PLA), a system-on-a-chip, a system-on-a-substrate, a system-on-a-package, an Application Specific Integrated Circuit (ASIC), or in hardware or firmware, such as any other reasonable manner of integrating or packaging the circuits, or in any one of or a suitable combination of three of software, hardware, and firmware. Or at least one of the functional modules comprised by the conference control device 700 and the conference device 800 described above may be at least partly implemented as computer program modules which, when run, perform the respective functions.

It should be noted that, in the technical solution provided by the embodiment of the present disclosure, the related aspects of collecting, updating, analyzing, processing, using, transmitting, storing, etc. of the personal information of the user all conform to the rules of relevant laws and regulations, and are used for legal purposes without violating the public order colloquial. Necessary measures are taken for the personal information of the user, illegal access to the personal information data of the user is prevented, and the personal information security, network security and national security of the user are maintained.

It should be noted that in this document, relational terms such as "first" and "second" and the like are 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. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, 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 process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The foregoing is merely a specific embodiment of the disclosure to enable one skilled in the art to understand or practice the disclosure. 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 disclosure. Thus, the present disclosure 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

1. A method of conference control, applied to a conference control device, the method comprising:

receiving conference control operation information for a target conference device;

Determining target ultrasonic carrier wave information corresponding to the target conference equipment; the target ultrasonic carrier information is used for distinguishing controlled objects in at least one dimension of amplitude or frequency;

based on the target ultrasonic carrier information, encoding the conference control operation information to obtain an ultrasonic carrier control signal aiming at the target conference equipment;

And transmitting the ultrasonic carrier control signal to the target conference equipment based on the audio module of the conference control equipment.

2. The method of claim 1, wherein determining the target ultrasonic carrier information corresponding to the target conference device comprises:

determining a target ultrasonic carrier frequency band corresponding to the target conference equipment according to a mapping table between the conference equipment and the ultrasonic carrier frequency band; the mapping table stores the corresponding relation among the conference room, the conference equipment and the ultrasonic carrier frequency band;

And determining target ultrasonic power or target ultrasonic amplitude corresponding to the target conference equipment according to the area information of the conference room where the conference control equipment and the target conference equipment are located and the internal construction information of the conference room.

3. The method according to claim 2, wherein the encoding the conference control operation information based on the target ultrasonic carrier information to obtain an ultrasonic carrier control signal for the target conference device includes:

determining the pairing identification frequency in the target ultrasonic carrier frequency band as a sequence head; the pairing identification frequency is used as an identification frequency for distinguishing different conference devices;

analyzing the conference control operation information into a character string corresponding to a preset system;

Generating a sequence body for encoding the character string according to the encoding frequency used for encoding the character of the preset system in the target ultrasonic carrier frequency band; the corresponding coding frequencies among different characters of the preset system have preset frequency intervals;

Splicing the sequence header and the sequence body to obtain a coding frequency sequence;

modulating the amplitude of the coded frequency sequence to the target ultrasonic amplitude or modulating the power of the coded frequency sequence to the target ultrasonic power; and the coded frequency sequence obtained after modulation is used as the ultrasonic carrier control signal.

4. The method according to claim 2, wherein in the correspondence, there is at least one of the following cases:

In the case that the first conference room and the second conference room are different conference rooms, and the third conference device of the first conference room and the fourth conference device of the second conference room are independently displayed, the target ultrasonic power or the target ultrasonic amplitude of the third conference device meets the following conditions: the signal transmission distance in the first meeting room is met, and the signal transmission distance in the second meeting room is attenuated to be below a first preset threshold value after the signal transmission distance in the first meeting room is reached; the target ultrasonic power or the target ultrasonic amplitude of the fourth conference device meets the following conditions: the signal transmission distance in the second conference room is met, and the signal transmission distance in the second conference room is attenuated to be below a second preset threshold value after reaching the first conference room; the third conference device and the fourth conference device have the same target ultrasonic carrier frequency band; or alternatively

In the case where the third conference device of the first conference room and the fourth conference device of the second conference room are presented independently, the target ultrasonic power or the target ultrasonic amplitude of the third conference device meets the following conditions: the signal transmission distance in the first meeting room is met, and the signal transmission distance in the second meeting room is attenuated to be below a third preset threshold value after the signal transmission distance in the first meeting room is reached; the target ultrasonic power or the target ultrasonic amplitude of the fourth conference device meets the following conditions: the signal transmission distance in the second conference room is met, and the signal transmission distance in the second conference room is attenuated to be below a fourth preset threshold value after reaching the first conference room; the third conference device and the fourth conference device have different target ultrasonic carrier frequency bands; wherein the third preset threshold is greater than the first preset threshold and the fourth preset threshold is greater than the second preset threshold.

5. The method according to any of claims 2-4, wherein the different target ultrasound carrier frequency bands comprise one of:

Different target ultrasonic carrier frequency bands have different pairing identification frequencies; or alternatively

Different target ultrasonic carrier frequency bands have different pairing identification frequencies, and the pairing identification frequencies correspond to unique pairing groups; or alternatively

Different target ultrasonic carrier frequency bands have different pairing identification frequencies, and preset frequency intervals between coding frequencies for coding the characters of the preset system in the different target ultrasonic carrier frequency bands have differences; or alternatively

Different target ultrasonic carrier frequency bands have different pairing identification frequencies, and the pairing identification frequencies correspond to unique pairing groups; the preset frequency intervals between the coding frequencies used for coding the characters in the preset system in different target ultrasonic carrier frequency bands are different; wherein the pairing group is a pairing group formed by the conference device and the conference control device.

6. The method as recited in claim 1, further comprising:

Receiving an ultrasonic carrier result signal based on an audio module of the conference control equipment; the ultrasonic carrier result signal is obtained by encoding an operation execution result by the conference equipment based on corresponding target ultrasonic carrier information;

Analyzing and decoding the ultrasonic carrier result signal to obtain an operation execution result aiming at the ultrasonic carrier control signal;

and updating and presenting the conference control interface according to the operation execution result.

7. The method of claim 6, wherein analyzing and decoding the ultrasonic carrier result signal to obtain an operation execution result for the ultrasonic carrier control signal comprises:

Analyzing the signal head of the ultrasonic carrier result signal to obtain a pairing group corresponding to the pairing identification frequency; the pairing identification frequency is used as the identification frequency for distinguishing different conference devices and corresponds to a unique pairing group;

determining a target result signal body corresponding to the paired conference equipment and conference control equipment according to the pairing group;

and decoding the target result signal body according to the coding frequency in the target ultrasonic carrier frequency band corresponding to the conference control equipment to obtain an operation execution result aiming at the ultrasonic carrier control signal.

8. A method of conference control, applied to a conference device, comprising:

Receiving ultrasonic carrier control signals sent by one or more conference control devices based on an audio module of the conference device;

analyzing and decoding the ultrasonic carrier control signal to obtain conference control operation information aiming at the conference equipment;

Executing the operation indicated by the conference control operation information on the conference equipment to obtain an operation execution result;

encoding the operation execution result based on the target ultrasonic carrier information corresponding to the conference equipment to obtain an ultrasonic carrier result signal; the target ultrasonic carrier information is used for distinguishing controlled objects in at least one dimension of amplitude or frequency;

And based on the audio module of the conference equipment, sending the ultrasonic carrier wave result signal to the corresponding conference control equipment.

9. The method of claim 8, wherein parsing and decoding the ultrasonic carrier control signal to obtain conference control operation information for the conference device comprises:

analyzing the signal head of the ultrasonic carrier control signal to obtain a pairing group corresponding to the pairing identification frequency; the pairing identification frequency is used as the identification frequency for distinguishing different conference devices and corresponds to a unique pairing group;

Determining a target control signal body corresponding to the paired conference equipment and conference control equipment according to the pairing group;

And decoding the target control signal body according to the coding frequency in the target ultrasonic carrier frequency band corresponding to the conference equipment to obtain conference control operation information aiming at the conference equipment.

10. A conference control device, characterized by comprising:

A control information receiving module for receiving conference control operation information for a target conference device;

The ultrasonic carrier information determining module is used for determining target ultrasonic carrier information corresponding to the target conference equipment; the target ultrasonic carrier information is used for distinguishing controlled objects in at least one dimension of amplitude or frequency;

the first encoding module is used for encoding the conference control operation information based on the target ultrasonic carrier information to obtain an ultrasonic carrier control signal aiming at the target conference equipment;

And the control signal transmitting module is arranged in the audio module of the conference control equipment and is used for transmitting the ultrasonic carrier control signal to the target conference equipment.

11. The conference control device of claim 10, further comprising:

The result receiving module is arranged in the audio module of the conference control equipment and is used for receiving ultrasonic carrier result signals; the ultrasonic carrier result signal is obtained by encoding an operation execution result by the conference equipment based on corresponding target ultrasonic carrier information;

The first decoding module is used for analyzing and decoding the ultrasonic carrier wave result signal to obtain an operation execution result aiming at the ultrasonic carrier wave control signal;

And the interface updating module is used for updating and presenting the conference control interface according to the operation execution result.

12. A conference device, comprising:

the ultrasonic control signal receiving module is arranged in the audio module of the conference equipment and is used for receiving ultrasonic carrier control signals sent by one or more conference control equipment;

The second decoding module is used for analyzing and decoding the ultrasonic carrier control signal to obtain conference control operation information aiming at the conference equipment;

An operation execution module, configured to execute an operation indicated by the conference control operation information on the conference device, to obtain an operation execution result;

The second coding module is used for coding the operation execution result based on the target ultrasonic carrier wave information corresponding to the conference equipment to obtain an ultrasonic carrier wave result signal; the target ultrasonic carrier information is used for distinguishing controlled objects in at least one dimension of amplitude or frequency;

And the result sending module is arranged in the audio module of the conference equipment and is used for sending the ultrasonic carrier result signal to the corresponding conference control equipment.

13. A conference control system, comprising: conference control apparatus and conference apparatus;

the conference control device being adapted to perform the method of any one of claims 1-7 or being a conference control device of claim 10 or 11;

The conference device being adapted to perform the method of claim 8 or 9 or being the conference device of claim 12.