Desktop control device for conference system and conference system

Abstract

The invention discloses a desktop control device for a conference system and the conference system. The desktop control device comprises a processor module, and a key module, a communication module and an indicator light module which are connected with the processor module, wherein the key module is used for a user to operate to control the working mode of the desktop control device; the processor module is used for generating an array microphone control instruction in response to a key operation of a user; the communication module is used for sending the array microphone control instruction to the array microphone device; and the indicating lamp module is used for indicating the working mode of the desktop control device. The desktop control device for the conference system is matched with the array microphone device in the conference place, the processor module responds to the key operation of the user to generate the array microphone control instruction to control the array microphone device, and flexible control over the working mode of the desktop control device is achieved.

Description

Technical Field

[0001] This application relates to the field of conference equipment technology, and in particular to a desktop control device and a conference system for a conference system. Background Technology

[0002] Traditional gooseneck microphones typically integrate the control functions of the chairman and delegate units in digital conference systems onto the microphone itself. These include simple mute and speak buttons, connected to the conference system host via a wired connection, and only allow for basic control of their own microphone pickup. Remote controls for ceiling-mounted, desktop, and wall-mounted array microphones are mostly infrared or radio frequency remotes, primarily used for adjusting volume and switching basic modes (amplification / talk). These remotes are limited in function and cannot provide individual mute or pickup priority control for the chairman or delegate units, nor do they support voice command control of the conference room equipment. Summary of the Invention

[0003] This application provides a desktop control device and a conference system for a conference system, which are used to solve at least one of the above-mentioned technical problems.

[0004] In a first aspect, embodiments of this application provide a desktop control device for a conference system, used for communicating with an array microphone device in the conference room to achieve local sound amplification and remote communication. The desktop control device includes: a processor module and a button module, a communication module, and an indicator light module connected to the processor module; wherein... A button module is used by the user to control the working mode of the desktop control device. The processor module is used to generate array microphone control commands in response to user key presses; A communication module is used to send the array microphone control commands to the array microphone device; An indicator light module is used to indicate the operating mode of the desktop control device.

[0005] In some embodiments, the desktop control device for the conference system further includes: a microphone module connected to the processor module, for collecting user voice and sending it to the processor module; The processor module is configured to: control the operating mode of the desktop control device according to the user's voice, and generate array microphone control commands.

[0006] In some embodiments, the button module includes a mute button, and when the mute button is pressed, the operating mode of the desktop control device is switched to a mute state.

[0007] In some embodiments, the button module includes a VIP button, and when the VIP button is pressed, the operating mode of the desktop control device switches to VIP mode.

[0008] In some embodiments, the processor module is configured to: when the desktop control device is in VIP mode and does not receive user voice from the microphone module within a preset time period, control the desktop control device to exit the VIP mode.

[0009] In some embodiments, the communication module is configured to receive working mode control commands from an external source to control the working mode of the desktop control device.

[0010] In some embodiments, the processor module is configured with a speech recognition engine for controlling external devices in the meeting room based on user voice from the microphone module.

[0011] Secondly, embodiments of this application provide a conference system, characterized in that it includes: a central control device, at least one array microphone device, and at least one desktop control device, wherein the desktop control device adopts the desktop control device described in any embodiment of this application.

[0012] In some embodiments, when the desktop control device is in VIP mode and neither the microphone module nor the array microphone device of the desktop control device detects user voice within a preset time period, the desktop control device is controlled to exit the VIP mode.

[0013] In some embodiments, at least one desktop control device includes a mute unit configured with only a mute button and a chairman unit configured with both a mute button and a VIP button, wherein the chairman unit has a higher priority than the mute unit.

[0014] The desktop control device for the conference system described in this application works in conjunction with the array microphone device in the conference room. By generating array microphone control commands in response to user key presses through the processor module, the array microphone device can be controlled, thereby achieving flexible control over the working mode of the desktop control device. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic block diagram of an embodiment of the desktop control device of this application; Figure 2 This is a schematic block diagram of another embodiment of the desktop control device of this application; Figure 3 This is a schematic block diagram of an embodiment of the conference system of this application; Figure 4 This is a schematic diagram of the workflow of the conference system in this application. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0018] It should also be noted that, in this document, the terms "comprising" or "including" include not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0019] During their use of existing conference systems, the inventors discovered that traditional control devices not only fail to meet the demands of high-end conferences for flexible control and order management, but also suffer from limited operational options, relying solely on physical buttons and unable to coordinate with other conference room equipment (such as lighting and projectors), thus impacting meeting efficiency. For example, in multi-participant meetings, it is difficult to quickly switch between different speaking modes, effectively control speaking priorities, and requires additional operation of central control or remote control devices, leading to chaos in the meeting room.

[0020] To address these shortcomings, this application designs a desktop control device specifically adapted to array microphone devices (e.g., ceiling microphones, desktop microphones, wall-mounted microphones, etc.). This device not only enables dynamic switching of audio zones and priority control, but also adds voice command extension capabilities, breaking the limitations of physical buttons. The overall design concept is to treat this desktop control device as an accessory to the array microphone device, integrating control functions, some digital conference system chairman and delegate unit functions of traditional gooseneck microphone products, and voice interaction functions, thereby achieving precise control of the array microphone device and coordinated management of conference room equipment.

[0021] The principle is to use physical buttons or voice commands on the desktop control device to turn mute on / off and switch VIP speaking modes; to bind buttons to ceiling microphones and other microphones in the room through button and UI configuration, and to bind the chairman unit to the VIP configuration mode; then, the communication module of the desktop control device sends control commands to the ceiling microphone to adjust the sound zone strategy; at the same time, after the voice commands are recognized by the processor module, they are transmitted to the central control device through the communication module to control the conference room equipment (such as lights and curtains); and to restrict the permissions of lower-priority desktop buttons or voice commands through preset priority rules to ensure the orderliness of speaking in the meeting room.

[0022] Specifically, the UI configuration is implemented as follows: the configuration of array microphone devices such as ceiling microphones, desktop microphones, and wall-mounted microphones (e.g., network configuration, audio zone configuration, algorithm configuration) is all completed on a single controller configuration tool, which can be a computer-based software. It should be noted that this application does not limit the specific configuration method or process.

[0023] Regarding the binding of buttons to ceiling microphones in a room, the specific explanation is as follows: Buttons can only function when bound to a ceiling microphone or other microphone pickup device in a specific room. This can be understood as the desktop control device first needing to locate its target (i.e., the array microphone device). This locating process can be performed on-site during the equipment installation and debugging phase; this application does not limit this process.

[0024] like Figure 1 As shown, an embodiment of this application provides a desktop control device for a conference system, which is used to communicate with an array microphone device in the conference room to realize local sound amplification and remote communication. The desktop control device includes: a processor module 120 and a button module 110, a communication module 130, and an indicator light module 140 connected to the processor module 120; wherein, The button module 110 is used by the user to control the operating mode of the desktop control device. The operating modes include, but are not limited to, VIP mode and normal mode, with VIP mode having higher priority than normal mode. For example, in a meeting room, when a desktop control device switches to VIP mode, it has a higher priority than other desktop control devices in normal operating mode (e.g., when a user speaks through a desktop control device in VIP mode, other desktop control devices in normal operating mode are muted).

[0025] For example, the button module 110 includes, but is not limited to, a physical button mechanism and a button circuit that cooperates with the physical button mechanism, the button circuit being connected to the processor module. When a user presses a button, the button circuit generates a button signal that is transmitted to the processor module.

[0026] Processor module 120 is configured to generate array microphone control commands in response to user key presses. Exemplarily, processor module 120 includes, but is not limited to, a circuit board and a processor mounted on the circuit board. This application does not limit the specific model of the processor.

[0027] The communication module 130 is used to send the array microphone control commands to the array microphone device. The communication module enables communication between the desktop control device and the external array microphone device or central control device. Exemplarily, the communication module 130 can be a wired communication module or a wireless communication module; this application does not limit this. For example, the wireless communication module can be a Bluetooth communication module, etc.

[0028] An indicator module 140 is used to indicate the operating mode of the desktop control device. The indicator module 140 is exemplarily connected to a processor module. The indicator module includes at least one indicator light for indicating the operating mode of the desktop control device.

[0029] The desktop control device for the conference system described in this application works in conjunction with the array microphone device in the conference room. By generating array microphone control commands in response to user key presses through the processor module, the array microphone device can be controlled, thereby achieving flexible control over the working mode of the desktop control device.

[0030] like Figure 2 The diagram shown is a schematic block diagram of another embodiment of the desktop control device for a conference system according to this application. In this embodiment, the desktop control device for a conference system further includes: a microphone module 150 connected to the processor module, used to collect user voice and send it to the processor module 120; the processor module 120 is configured to: control the working mode of the desktop control device according to the user voice and generate array microphone control commands.

[0031] This embodiment enables the detection and acquisition of user voice on the desktop by configuring a microphone module 150 in the desktop control device. Furthermore, the processor module analyzes and processes the detected user voice to control the operating mode of the desktop control device. In addition, array microphone control commands are generated to achieve voice control of the array microphone device.

[0032] In some embodiments, the button module includes a mute button, and when the mute button is pressed, the operating mode of the desktop control device is switched to a mute state.

[0033] In this embodiment, a mute button is provided for the desktop control device. When the mute button is pressed, the operating mode of the desktop control device switches to a mute state, realizing one-click switching of the operating mode of the desktop control device. In some embodiments, a desktop control device is provided that is only equipped with a mute button. When used in a conference system, the desktop control device is used as a mute unit.

[0034] In some embodiments, the button module further includes a VIP button, and when the VIP button is pressed, the operating mode of the desktop control device switches to VIP mode.

[0035] This embodiment further configures a VIP button on the desktop control device, building upon the previous embodiments. Specifically, the desktop control device in this embodiment is equipped with both a mute button and a VIP button. When the VIP button is pressed, the desktop control device switches to VIP mode; when the VIP button is pressed again or the mute button is pressed, the desktop control device exits VIP mode. When used in a conference system, this desktop control device serves as the chairman unit.

[0036] In some embodiments, the processor module is configured to: when the desktop control device is in VIP mode and does not receive user voice from the microphone module within a preset time period, control the desktop control device to exit the VIP mode.

[0037] For example, the microphone module of the desktop control device can detect whether there is user voice in real time, and if no user voice is detected for a long time (e.g., exceeding a preset time, such as 30 seconds, which is not limited in this application), it is considered that the participant at the current desktop control device no longer needs to speak. Here, the processor module controls the desktop control device to exit VIP mode, and the array microphone device in the meeting room returns to the default configuration (under this default configuration, the array microphone device may continue to pick up the participant's voice, or it may stop picking up the voice). The default configuration can be a microphone pickup area configuration suitable for daily meeting needs, configured according to the site (e.g., the meeting room site), that is, a preset pickup area configuration when the desktop controller is not used. This configuration is configured by the on-site technicians at the time of project delivery, which is not limited in this application.

[0038] In this embodiment, for a desktop control device in VIP mode, if no one speaks within a preset time using its microphone module, the device is controlled to exit VIP mode, thus achieving automatic switching of the desktop control device's operating state. For example, the microphone module can have a built-in voice detection algorithm to achieve real-time monitoring of user speech, enabling automatic switching of the desktop control device's operating state, and combined with an array microphone device to achieve automatic VIP release.

[0039] In some embodiments, the communication module is configured to receive an external working mode control command to control the working mode of the desktop control device. For example, the external command may come from a central control unit located in the meeting room. For instance, multiple desktop control devices, a central control unit, and an array microphone unit are arranged in the meeting room. The multiple desktop control devices include a chairman unit and multiple mute units. When the user controls the chairman unit to switch to VIP mode, the central control unit switches the other desktop control devices (i.e., the multiple mute units) to a mute state (e.g., by controlling the array microphone unit in the meeting room not to pick up sound from the corresponding sound-receiving area of ​​other desktop control devices. The sound-receiving area corresponding to a desktop control device can be a certain range around the location of the desktop control device; the specific range can be configured as needed, and this application does not limit this), to ensure the highest priority of the chairman unit.

[0040] In some embodiments, the processor module is configured with a voice recognition engine for controlling external devices in the meeting room based on user voice from the microphone module. Exemplarily, external devices include, but are not limited to, conference room equipment such as lights and curtains. When the voice recognition engine recognizes a user voice command to control the lights or curtains, it controls the switching on or off of the lights or curtains in the meeting room. This embodiment achieves flexible control of the array microphone device and voice linkage with conference room equipment, improving the intelligence and ease of operation of the conference system, ensuring the order of speaking during the meeting, and improving meeting efficiency.

[0041] like Figure 3 As shown, an embodiment of this application provides a conference system. In this embodiment, the conference system includes: a central control device 200, at least one array microphone device 300, and at least one desktop control device 100, wherein the desktop control device adopts the desktop control device described in any embodiment of this application.

[0042] For example, the desktop control device 100 includes: Button module: Includes VIP button and mute button, supports VIP / normal mode switching and global mute operation; Microphone Module: Built-in microphone for capturing local human voice (for VIP mode timeout release) and extended voice command control capabilities – integrated voice recognition engine (supports offline wake word "meeting assistant" trigger), can recognize preset command sets (e.g., "turn on chairman mode", "turn off mute", "turn on lights", "lower curtains", etc.), and connects with the central control device 200 through the communication module to realize the linkage control of conference room equipment; Processing module: Processes key press behavior information or voice commands into command data, with built-in human voice detection algorithm and speech recognition engine; Communication module: Communicates with ceiling microphones, desktop microphones, wall-mounted microphones, etc. via Bluetooth or wired connection to synchronize status and transmit control commands; it also supports communication with central control devices to transmit voice control commands. Lighting effect module: Includes a white light for the VIP button and a red light for the mute button, providing real-time feedback on system status (e.g., VIP mode on / off, mute status, etc.).

[0043] like Figure 4 The diagram shown illustrates the workflow of the conference system of this application. In this embodiment, the specific steps include: (1) Prerequisites: The main device microphone (i.e., array microphone device) and desktop control device have been configured using the configuration tool. The specific configuration method is not limited in this application.

[0044] (2) Device power-on initialization The desktop control unit (Chairman's Unit / Silent Unit) is powered on and started; Hardware self-test: Button LEDs, microphone, Bluetooth / PoE communication module; This embodiment employs a low-power design, where the Bluetooth device enters standby mode when there is no audio input.

[0045] (3) State synchronization detection The system requests the microphone status of the host device via Bluetooth broadcast protocol. The host device microphone status includes normal and abnormal states. Normal states include remote calling, local amplification, and mute; abnormal states include device malfunctions such as fault, offline, and power failure.

[0046] When synchronization fails: all button lights turn off.

[0047] (4) Status synchronization and lighting effect linkage When synchronization is successful: VIP button indicator: Solid white light (VIP on) / Off (VIP off) Mute button indicator: Solid red light (in mute) / Off (not mute) (5) VIP button operation processing A. Activate VIP: Trigger the master device microphone to switch to the preset configuration; Multi-device collaboration: Chairman A+B enabled → Automatic switching between A+B combination configurations.

[0048] B. Close VIP: Automatically detect other active chairman units: If an active chairman unit exists, switch the remaining combination configuration. An active chairman unit refers to a desktop control device with a VIP physical button and the VIP is active; an inactive chairman unit refers to a desktop control device with a VIP physical button and the VIP is deactivated.

[0049] (6) Mute button operation handling A. When global VIP is enabled: Active Chairperson Unit Operation: Exit VIP and trigger panoramic mute (the main device microphone detects the number of remaining active chairpersons; if the remaining number is ≥1, the mute operation is not performed). Panoramic mute means that all main device microphones in the meeting room do not pick up sound; the remote end of the video call cannot hear the sound, and the local end cannot hear the amplified sound.

[0050] Inactive / silent unit device operation: Red light flashes 3 times to refuse.

[0051] B. When global VIP is off: Any press of the mute button triggers a panoramic mute / cancel. When there are no desktop controls in the meeting room and VIP mode is enabled, the mute buttons on both the mute unit and the chairman unit can trigger a panoramic mute / cancel. When a VIP without a desktop control is in an active or inactive state, the mute button has low priority and its function is restricted (to ensure that the chairman's speech is not interrupted).

[0052] Status broadcast: All devices' mute lights are synchronized to remain constantly on / off with the red light on.

[0053] (7) Voice detection and automatic VIP release Automatic release logic: Condition: There is no voice transmission for ≥N seconds between the microphones of the controller device and the main device. The value of N can be set as needed and is not limited in this application.

[0054] Action: Force switch to default configuration.

[0055] In some embodiments, when the desktop control device is in VIP mode and neither the microphone module nor the array microphone device of the desktop control device detects user voice within a preset time period, the desktop control device is controlled to exit the VIP mode.

[0056] This embodiment improves the accuracy and reliability of user voice detection based on the microphone module of the desktop control device and the array microphone device, thus achieving automatic release of VIP mode. For example, based on dual-end voice monitoring (desktop control device and array microphone device), if no audio input is detected for N seconds, VIP mode is automatically released (release can also be manually triggered by voice command), and the array microphone device switches to its default configuration. In implementing this application, the inventors attempted PLAN A: using only the microphone on the desktop control device for voice detection; if no voice input exceeds a specified time, VIP mode is released. The inventors found that PLAN A has drawbacks: the button pickup range is limited, and the algorithm accuracy needs further investigation. To avoid these two limitations causing erroneous VIP mode release, voice detection using the array microphone device is added, greatly improving the reliability of automatic VIP mode release; therefore, dual-end detection is adopted.

[0057] In some embodiments, at least one desktop control device includes a mute unit configured with only a mute button and a chairman unit configured with both a mute button and a VIP button, wherein the chairman unit has a higher priority than the mute unit. For example, in VIP mode, the operation of the chairman unit (physical button or voice command) has a higher priority than the mute unit, and the operation of the mute unit (physical button and voice command) is restricted to varying degrees (e.g., by configuring to restrict the operation of all mute units; or by configuring to refuse response to the operation of some mute units while still responding to the operation of others).

[0058] In some embodiments, this is achieved through configuration: when the chairperson unit is in VIP mode, the mute unit's mute operation on the overhead microphone is rejected, but the mute unit's volume control on the overhead microphone can be responded to. For example, when a speaker in the chairperson unit is speaking and their voice is low, the volume of the chairperson unit's speech can be controlled through the operation of the mute unit (e.g., a meeting administrator or meeting support staff can control the volume through the mute unit in front of them).

[0059] In some embodiments, the following configuration is implemented: when the chairman unit is in VIP mode, voice commands from the mute unit to the central control device (e.g., lowering the curtains, turning on the projector, etc.) can be responded to, while other voice commands from the mute unit to the central control device (e.g., mute the chairman unit) are rejected.

[0060] For example, the chairman unit can switch between VIP mode and non-VIP mode. For instance, VIP mode can be triggered via the VIP button or voice command, switching the array microphone device to the dedicated pickup area of ​​the chairman unit, with the VIP button's white light remaining constantly lit, and mute unit operation disabled (a red light flashing rapidly to indicate rejection). VIP mode can be deactivated by pressing the VIP button again, pressing the mute button, or a voice command, restoring the array microphone device to its default configuration, with the lighting effects updating synchronously. The default configuration can be a microphone pickup area configuration suitable for daily meetings, tailored to the specific needs of the venue (e.g., a conference room). This configuration is pre-set by on-site technicians during project delivery, and this application does not limit its implementation.

[0061] In some embodiments, there are multiple chairperson units. In this multi-chairperson scenario: when multiple chairperson units are active, the master device switches to a combined pickup configuration; the mute operation of a single chairperson unit only exits its own VIP, and the master device refuses to mute globally to avoid interrupting the speech of other chairperson units.

[0062] For example, if the VIP mode sound pickup configuration is understandable when a single chairperson is speaking, then multiple chairperson units constitute a combined mode. For instance, if chairperson unit A and chairperson unit B both activate VIP mode, and the system assumes both chairpersons will speak, it will switch to a combined speaking mode: chairperson unit A's position will receive sound pickup and amplification, and chairperson unit B's position will also receive sound pickup and amplification; other attendees' positions will be designated as silent zones. Of course, this is just an example, and this application does not limit the specific configuration of the sound areas.

[0063] For example, the explanation for the main device's refusal to mute globally is as follows: At this time, both Chairman Unit A and Chairman Unit B are in VIP mode, and the system is currently configured with a combined VIP pickup area of ​​Chairman Unit A and Chairman Unit B. Chairman Unit B presses its own "mute button," and theoretically, the device should perform two operations: deactivate Chairman Unit B's VIP mode and execute a full-scale mute. In fact, both commands are sent to the microphone, but the microphone senses that Chairman Unit A is still in VIP mode, therefore refusing to execute the second command, "full-scale mute." At this point, the device switches from the combined VIP mode of Chairman Unit A and Chairman Unit B to the individual speaking mode of Chairman Unit A, ensuring that Chairman Unit A's speaking can proceed normally.

[0064] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of combined actions. However, those skilled in the art should understand that this application is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to this application. Secondly, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to this application. In the above embodiments, the descriptions of each embodiment have their own emphasis; for parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0065] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A desktop control device for a conference system, characterized in that, The desktop control device, used for communicating with the array microphone system in the venue to achieve local sound reinforcement and remote communication, includes: a processor module and a button module, a communication module, and an indicator light module connected to the processor module; wherein... A button module is used by the user to control the working mode of the desktop control device. The processor module is used to generate array microphone control commands in response to user key presses; A communication module is used to send the array microphone control commands to the array microphone device; An indicator light module is used to indicate the operating mode of the desktop control device.

2. The apparatus according to claim 1, characterized in that, It also includes: a microphone module connected to the processor module, used to collect user voice and send it to the processor module; The processor module is configured to: control the operating mode of the desktop control device according to the user's voice, and generate array microphone control commands.

3. The apparatus according to claim 2, characterized in that, The button module includes a mute button. When the mute button is pressed, the desktop control device switches to a mute state.

4. The apparatus according to claim 3, characterized in that, The button module includes a VIP button. When the VIP button is pressed, the working mode of the desktop control device switches to VIP mode.

5. The apparatus according to any one of claims 2-4, characterized in that, The processor module is configured to: when the desktop control device is in VIP mode and does not receive user voice from the microphone module within a preset time, control the desktop control device to exit the VIP mode.

6. The apparatus according to claim 5, characterized in that, The communication module is configured to receive working mode control commands from external sources to control the working mode of the desktop control device.

7. The apparatus according to claim 5, characterized in that, The processor module is equipped with a voice recognition engine for controlling external devices in the venue based on user voice from the microphone module.

8. A conference system, characterized in that, include: The device comprises a central control unit, at least one array microphone device, and at least one desktop control unit, wherein the desktop control unit is the device according to any one of claims 1-7.

9. The system according to claim 8, characterized in that, When the desktop control device is in VIP mode, and neither the microphone module nor the array microphone device of the desktop control device detects user voice within a preset time period, the desktop control device is controlled to exit the VIP mode.

10. The system according to claim 8, characterized in that, The at least one desktop control device includes a mute unit equipped with only a mute button and a chairman unit equipped with both a mute button and a VIP button, wherein the chairman unit has a higher priority than the mute unit.

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