Intelligent interaction device based on voice interaction, multi-screen collaborative display, rotating chassis positioning and near-field induction confirmation and control method thereof

Abstract

The invention discloses an intelligent interaction device based on voice interaction, multi-screen collaborative display, rotary chassis positioning and near-field induction confirmation and a control method thereof. The device comprises a shell, a base, a rotating chassis, a main control circuit board, a central supporting column, a first display screen, a second display screen, a third display screen, an annular breathing lamp, a top cover, a functional panel, a capacitive near-field sensing module and a battery pack. In a preferred embodiment, the device further comprises a camera module. The rotary chassis is arranged between the shell and the base and is used for realizing rotation of the shell relative to the base and positioning of a plurality of preset angle positions; the main control circuit board is electrically connected with the display screen, the annular breathing lamp, the near-field induction module, the audio collection assembly, the audio output assembly, the function panel and the communication module and used for achieving voice interaction, split-screen display, confirmation detection, lamplight linkage and data communication. The control method comprises the steps of device angle positioning, voice acquisition and recognition, multi-screen display control, near-field confirmation, synchronous storage of interaction records and the like. According to the method, the display orientation capability, the multi-module linkage control capability and the interaction confirmation definition in a multi-user interaction scene can be improved, and the information presentation flexibility is improved.

Description

Technical Field

[0001] This invention belongs to the field of human-computer interaction and intelligent terminal technology, specifically relating to an intelligent interactive device and its control method based on voice interaction, multi-screen collaborative display, rotating chassis positioning and near-field sensing confirmation. Background Technology

[0002] With the development of artificial intelligence, Internet of Things, and smart terminal technologies, smart interactive devices have been widely used in various scenarios such as homes, education, and corporate offices. Existing technologies include voice-interactive devices, screen-interactive devices, and multimodal devices that integrate voice and display functions. However, in complex interactive scenarios requiring continuous user cognitive participation, multi-step logical deduction, or multi-user collaborative participation, the relevant technical solutions still have certain limitations.

[0003] Existing technologies can be broadly categorized into the following types.

[0004] The first category comprises smart devices primarily based on a single voice modality. Examples include intelligent companion robots based on voice interaction. This type of technology typically relies on microphone arrays, voice recognition modules, and voice broadcasting modules to achieve question-and-answer interaction. Similarly, existing publicly available technologies also include voice-interactive display device solutions centered on voice input, voice recognition, and voice output. While this type of technology can achieve basic voice question-and-answer and information feedback, it primarily transmits information through a linear, instantaneous voice channel, lacking the ability to continuously visualize complex, structured information. When the output involves execution steps, logical relationships, or confirmation points, users often lack stable visual references, hindering the retention and verification of more complex information.

[0005] The second category consists of smart display devices that primarily use a single screen. These devices typically present images, text, or icons on a display screen, providing richer visual feedback than purely voice-based devices. However, existing single-screen structures suffer from problems such as fixed display orientation and limited information display space when multiple users participate simultaneously, view from different directions, or need to present different content based on the stage of interaction.

[0006] The third category comprises desktop-level multimodal interactive devices employing fixed viewing angles or limited rotation structures. Existing technologies include rotating display devices designed around adjusting the display orientation. These solutions can provide multiple display view directions, associated with different rotation angles relative to the first display view direction. This type of technology primarily focuses on switching the display viewing angle itself, but it does not provide an integrated device structure and control scheme for needs such as voice interaction, multi-screen collaborative display, near-field confirmation input, and linked storage of interaction records.

[0007] In summary, while existing technologies disclose technical solutions related to voice interaction, display interaction, and display orientation rotation, they still lack a technical solution capable of collaboratively achieving the following functions within a single device: first, directional presentation of displayed content in multi-user scenarios; second, collaborative control of multi-screen content based on the interaction state during voice interaction; and third, explicit confirmation input via near-field sensing at key interaction nodes. Therefore, it remains necessary to provide an intelligent interactive device and its control method to address the shortcomings of existing devices in terms of directional presentation of displayed content in multi-user scenarios, insufficient voice interaction and multi-screen collaborative linkage, and the lack of near-field confirmation input methods. Summary of the Invention Purpose of the invention

[0008] The purpose of this invention is to provide an intelligent interactive device and its control method based on voice interaction, multi-screen collaborative display, rotating chassis positioning, and near-field sensing confirmation, so as to solve the problems of the existing technology, such as the relatively simple interaction channels, the lack of directional presentation of display content, insufficient adaptation to multi-user collaborative interaction, and insufficient linkage control capabilities of voice, display, sensing, and lighting. Technical solution

[0009] To achieve the above objectives, the present invention adopts the following technical solution.

[0010] An intelligent interactive device includes a housing, a base 10, a main control circuit board 20, a central support column 30, a display module 40, a ring breathing light 50, a top cover 60, a battery pack 70, a function panel 80, a near-field sensing module 90, and a rotating chassis 100.

[0011] In a preferred embodiment, the intelligent interactive device further includes a camera module 110.

[0012] The housing has multiple outer sides, of which at least three outer sides are respectively provided with a first display screen 41, a second display screen 42 and a third display screen 43, and another outer side is provided with a function panel 80. The top of the housing is provided with a ring breathing light 50 and a top cover 60, and the bottom of the housing is connected to the base 10 through a rotating chassis 100.

[0013] The rotating chassis 100 is disposed between the housing and the base 10, and is used to realize the circumferential rotation of the housing relative to the base 10 and positioning at multiple predetermined angular positions. The rotating chassis 100 includes an upper chassis 101, a lower chassis 102, a central rotating shaft assembly 103, and a positioning structure. The upper chassis 101 is fixedly connected to the housing, and the lower chassis 102 is fixedly connected to the base 10. The central rotating shaft assembly 103 is used to rotate the upper chassis 101 relative to the lower chassis 102. The positioning structure includes multiple positioning grooves 1041 spaced apart along the circumferential direction and elastic positioning elements 1042 that cooperate with the positioning grooves 1041. When the housing rotates relative to the base 10 to a predetermined angular position, the elastic positioning element 1042 is embedded in the corresponding positioning groove 1041 to achieve angular positioning. Preferably, the multiple positioning grooves 1041 are spaced apart at 90° angles along the circumferential direction.

[0014] The base 10 preferably adopts a multi-leg support structure, and a heat dissipation gap is formed between the base 10 and the bottom of the shell.

[0015] The main control circuit board 20 is located inside the housing and is electrically connected to the first display screen 41, the second display screen 42, the third display screen 43, the ring breathing light 50, the near-field sensing module 90, the audio acquisition component, the audio output component, the function panel 80, and the communication module, respectively. It is used to control the display, audio interaction, sensing detection, communication, and lighting linkage of the intelligent interactive device. The central support column 30 is located inside the housing, and the audio acquisition component and the audio output component are mounted on the central support column 30. The audio acquisition component includes a microphone array, and the audio output component includes a speaker.

[0016] The ring-shaped breathing light 50 is located on the top of the housing and is used to output different light colors, brightness, or flashing frequencies under the control of the main control circuit board 20. The top cover 60 covers the top of the housing and cooperates with the ring-shaped breathing light 50 to form the top surface of the device. The near-field sensing module 90 is a capacitive near-field sensing module, located inside the first display screen 41 or behind the cover plate, used to detect the user's hand approaching and / or touching the corresponding area of ​​the first display screen 41, and output sensing signals to the main control circuit board 20. The function panel 80 is provided with a power button, a mode switching button, a recording button, a volume adjustment button, and a charging interface. The battery pack 70 is located in the lower part of the housing and is electrically connected to the main control circuit board 20 to power the intelligent interactive device.

[0017] The communication module includes a wireless communication module for establishing communication connections with a remote server and a mobile terminal to transmit voice data, interaction records, control commands, and result data. The mobile terminal has an application program installed corresponding to the device for receiving, viewing, and managing interaction records, audio files, and result data.

[0018] The present invention also provides a control method based on the above-mentioned intelligent interactive device, comprising the following steps: S1. After the device is started, the main control circuit board 20 controls the speaker to output voice prompts and prompts the user to rotate the housing; when the housing is detected to rotate relative to the base 10 to a predetermined angle position, the housing is positioned at an angle by rotating the chassis 100. S2. Acquire user voice signals through a microphone array and send the voice signals to the main control circuit board 20 and / or a remote server for recognition processing to obtain voice recognition results; S3. The main control circuit board 20 determines the current interaction state based on the voice recognition result, and controls at least one of the first display screen 41, the second display screen 42 and the third display screen 43 to output the corresponding display content based on the current interaction state. S4. At the predetermined interaction node, the main control circuit board 20 determines the target display screen according to the current interaction state, the current orientation of the housing, or the type of information to be displayed, and controls the target display screen to display the content to be confirmed, while controlling the speaker to output the prompt information corresponding to the target display screen. S5. The near-field sensing module 90 detects the user's hand approaching and / or touching the corresponding area of ​​the first display screen 41; after detecting a sensing signal that meets the preset conditions, a confirmation command is generated. S6. Output the interaction result according to the confirmation command, and send the interaction record and / or result data to the mobile terminal and / or remote server for storage.

[0019] Preferably, between steps S3 and S4, the main control circuit board 20 delays for a preset time after outputting the first voice prompt information before outputting the second voice prompt information, so as to control the rhythm of the voice prompts.

[0020] Preferably, in steps S2 to S6, the main control circuit board 20 synchronously controls the light emission color, brightness and flashing frequency of the ring breathing light 50 according to the current interaction state, and makes the light state of the ring breathing light 50 correspond to the voice output state and display state.

[0021] Preferably, when the recording button is detected to be triggered, the main control circuit board 20 controls the device to enter the recording state and generate a recording file; after receiving the recording sharing instruction, the recording file is sent to the mobile terminal. Beneficial effects

[0022] Compared with the prior art, the present invention has at least the following beneficial effects: By setting a rotating chassis 100, the housing can rotate and be positioned relative to the base 10 at multiple predetermined angles, thereby allowing the orientation of the display screen to be adjusted according to the user's position, improving the device's adaptability to multi-user interaction scenarios.

[0023] By setting up multiple displays and having the main control circuit board 20 control each display separately according to the interaction status, key information can be displayed in split screens during voice interaction, thereby improving the flexibility of information presentation.

[0024] By incorporating a capacitive near-field sensing module 90, proximity and / or contact-based confirmation input methods can be provided in addition to voice and display interactions, thereby improving the clarity of confirmation operations.

[0025] By integrating the display module 40, audio acquisition component, audio output component, ring breathing light 50, and near-field sensing module 90 into the main control circuit board 20 for coordinated control, the collaborative operation between voice, display, lighting, and confirmation operation can be achieved, improving the overall interactive consistency of the device.

[0026] In a preferred embodiment, a connection is established with a remote server and a mobile terminal through a wireless communication module, enabling the synchronous storage and retrieval of interactive records, audio files, and result data, facilitating subsequent viewing and management. Attached Figure Description

[0027] Figure 1 This is an exploded structural diagram of the intelligent interactive device of the present invention; Figure 2 This is a schematic diagram of the internal cross-sectional structure of the intelligent interactive device of the present invention; Figure 3 This is a schematic diagram of the system architecture of the intelligent interactive device of the present invention; Figure 4 This is a flowchart illustrating the control method of the present invention; Figure 5 This is an exploded structural diagram of the rotating chassis of the present invention; Figure 6 This is a partially enlarged schematic diagram of the positioning component in the rotating chassis of the present invention; Figure 7 This is a schematic diagram showing the positional relationship between the first display screen, the camera module, and the near-field sensing module of the present invention.

[0028] In the picture: 10. Base; 20. Main control circuit board; 30. Central support column; 40. Display module; 41. First display screen; 42. Second display screen; 43. Third display screen; 50. Circular breathing light; 60. Top cover; 70. Battery pack; 80. Function panel; 90. Near-field sensing module; 100. Rotating chassis; 101. Upper plate; 102. Lower body; 103. Central pivot assembly; 1041. Positioning groove; 1042. Elastic positioning component; 110. Camera module. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings. It should be understood that the following embodiments are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

Implementation Method 1: Device Structure Example

[0030] like Figure 1 , Figure 2 As shown, this embodiment provides an intelligent interactive device. The device includes a base 10, a main control circuit board 20, a central support column 30, a display module 40, a ring breathing light 50, a top cover 60, a battery pack 70, a function panel 80, a near-field sensing module 90, a rotating chassis 100, and a camera module 110.

[0031] The base 10 is located at the bottom of the device and is used to support the entire device. The base 10 preferably adopts a multi-leg support structure, and a heat dissipation gap is formed between the base 10 and the bottom of the housing.

[0032] The main control circuit board 20 is located in the lower part of the device, preferably above or adjacent to the battery pack 70, for unified control of various functional modules. Figure 2 As can be seen, the main control circuit board 20 is connected to the two side display modules 40, the audio acquisition and audio output components in the central support column 30, the near field sensing module 90, the camera module 110 and the function panel 80 respectively.

[0033] The central support column 30 is located in the middle of the device and extends along the height of the device. A speaker and microphone array are arranged on the central support column 30, so that voice acquisition and voice broadcasting are located at a relatively central position of the device.

[0034] The display module 40 is disposed on multiple outer sides of the housing. Combined Figure 1 As can be seen, in this embodiment, the first display screen 41, the second display screen 42, and the third display screen 43 are located on three different outer sides. The main control circuit board 20 can control the different display screens to display different content according to the current interaction state.

[0035] A ring-shaped breathing light 50 is located on the top of the device and is used to output different lighting effects according to different interaction states. A top cover 60 is located above or around the ring-shaped breathing light 50, forming the top appearance of the device and protecting the internal structure. A battery pack 70 is located inside the lower part of the device, providing power to the entire unit. A function panel 80 is located on an outer side of the housing, housing the power button, mode switch button, record button, volume control buttons, and charging port.

[0036] A near-field sensing module 90 is disposed inside or in front of the first display screen 41 to detect the user's hand approaching and / or touching the corresponding area of ​​the first display screen 41. A camera module 110 is disposed above the first display screen 41 and connected to the main control circuit board 20 to acquire user image information.

Implementation Method Two: Rotating Chassis Example

[0037] like Figure 5 , Figure 6 As shown, a rotating chassis 100 is disposed between the housing and the base 10. The rotating chassis 100 includes an upper chassis 101, a lower chassis 102, a central rotating shaft assembly 103, and a positioning structure. The upper chassis 101 is fixedly connected to the housing, the lower chassis 102 is fixedly connected to the base 10, and the central rotating shaft assembly 103 is used to rotate the upper chassis 101 relative to the lower chassis 102.

[0038] The positioning structure includes a plurality of positioning grooves 1041 spaced apart along the circumferential direction and elastic positioning elements 1042 that cooperate with the positioning grooves 1041. When the housing rotates relative to the base 10 to a predetermined angle position, the elastic positioning element 1042 is embedded in the corresponding positioning groove 1041 to achieve angular positioning. Preferably, the plurality of positioning grooves 1041 are spaced apart at 90° angles along the circumferential direction.

Implementation Method 3: System Architecture Example

[0039] like Figure 3 As shown, the system architecture includes a main control circuit board 20, a first display screen 41, a second display screen 42, a third display screen 43, a microphone array, a speaker, a near-field sensing module 90, a ring-shaped breathing light 50, a function panel 80, a wireless communication module, a remote server, and a mobile terminal. The main control circuit board 20 is connected to the above modules to realize voice acquisition and recognition, multi-screen display control, input confirmation processing, breathing light linkage, audio file management, and data synchronization.

[0040] In one embodiment, the main control circuit board 20 can control at least one of the first display screen 41, the second display screen 42, and the third display screen 43 to output corresponding text information, graphic information, icon information, or status information according to the current interaction state, the type of user input information, or user operation events.

[0041] In another embodiment, the mobile terminal is equipped with an application corresponding to the intelligent interactive device. The main control circuit board 20 synchronizes data with the application through a wireless communication module so that the interaction records, audio files and result data can be stored and retrieved on the mobile terminal. The main control circuit board 20 can also control the device to enter the recording state and generate an audio file when the recording button is detected to be triggered, and send the audio file to the mobile terminal through the wireless communication module.

Implementation Method Four: Control Method Example

[0042] like Figure 4 As shown, the present invention also provides a control method based on the above-mentioned intelligent interactive device. The control method includes the following steps: S1. After the device is started, the main control circuit board 20 controls the speaker to output voice prompts and prompts the user to rotate the housing; when the housing is detected to rotate relative to the base 10 to a predetermined angle position, the housing is positioned at an angle by rotating the chassis 100. S2. Acquire user voice signals through a microphone array and send the voice signals to the main control circuit board 20 and / or a remote server for recognition processing to obtain voice recognition results; S3. The main control circuit board 20 determines the current interaction state based on the voice recognition result, and controls at least one of the first display screen 41, the second display screen 42 and the third display screen 43 to output the corresponding display content based on the current interaction state. S4. At the predetermined interaction node, the main control circuit board 20 determines the target display screen according to the current interaction state, the current orientation of the housing, or the type of information to be displayed, and controls the target display screen to display the content to be confirmed, while controlling the speaker to output the prompt information corresponding to the target display screen. S5. The near-field sensing module 90 detects the user's hand approaching and / or touching the corresponding area of ​​the first display screen 41; after detecting a sensing signal that meets the preset conditions, a confirmation command is generated. S6. Output the interaction result according to the confirmation command, and send the interaction record and / or result data to the mobile terminal and / or remote server for storage.

[0043] Preferably, between steps S3 and S4, the main control circuit board 20 delays for a preset time after outputting the first voice prompt information before outputting the second voice prompt information, so as to control the rhythm of the voice prompts.

[0044] Preferably, in steps S2 to S6, the main control circuit board 20 synchronously controls the light emission color, brightness and flashing frequency of the ring breathing light 50 according to the current interaction state, and makes the light state of the ring breathing light 50 correspond to the voice output state and display state.

[0045] Preferably, when the recording button is detected to be triggered, the main control circuit board 20 controls the device to enter the recording state and generate a recording file; after receiving the recording sharing instruction, the recording file is sent to the mobile terminal.

Implementation Method 5: Multi-screen Orientation Linkage Example

[0046] In one embodiment, the main control circuit board 20 can also dynamically update the target display screen according to the current orientation of the housing. When a change in the orientation of the housing relative to the base 10 is detected, the main control circuit board 20 can redetermine the target display screen or adjust the display content according to the updated orientation. By combining the rotating chassis 100 with a multi-sided display screen, the present invention can achieve display output in different directions on the same device, thereby improving the display adaptation capability when multiple users participate simultaneously.

Implementation Method Six: Recording and Data Synchronization Example

[0047] When the user presses the record button on the function panel 80, the main control circuit board 20 controls the device to enter the recording state and generate a recording file. The recording file can be sent to a mobile terminal via the wireless communication module, where it can be viewed, managed, or further processed.

[0048] After the interaction ends, the device can also send the interaction record, result data, or status data to the mobile terminal and / or remote server for storage, so that it can be retrieved later.

Claims

1. An intelligent interactive device based on voice interaction, multi-screen collaborative display, rotating chassis positioning, and near-field sensing confirmation, characterized in that, include: The housing has multiple outer sides, of which at least three outer sides are respectively provided with a first display screen (41), a second display screen (42) and a third display screen (43), and another outer side is provided with a function panel (80). The top of the housing is provided with a ring breathing light (50) and a top cover (60). The bottom of the housing is connected to the base (10) via a rotating chassis (100). The base (10) is used to support the housing; The rotating chassis (100) is disposed between the housing and the base (10) and is used to realize the circumferential rotation of the housing relative to the base (10) and the positioning of multiple predetermined angular positions; The main control circuit board (20) is located inside the housing and is electrically connected to the first display screen (41), the second display screen (42), the third display screen (43), the ring breathing light (50), the near field sensing module (90), the audio acquisition component, the audio output component, the function panel (80), and the communication module, respectively, for controlling the display, audio interaction, sensing detection, communication, and lighting linkage of the intelligent interactive device; A central support column (30) is disposed inside the housing. The central support column (30) is provided with the audio acquisition component and the audio output component. The audio acquisition component includes a microphone array, and the audio output component includes a speaker. The ring-shaped breathing light (50) is located on the top of the housing and is used to output different light-emitting colors, brightness or flashing frequencies under the control of the main control circuit board (20); The top cover (60) covers the top of the housing and cooperates with the annular breathing light (50) to form the top surface of the device; The near-field sensing module (90) is a capacitive near-field sensing module, which is located inside the first display screen (41) or behind the cover plate. It is used to detect the user's hand approaching and / or touching the corresponding area of ​​the first display screen (41) and output sensing signals to the main control circuit board (20). The function panel (80) is equipped with a power button, a mode switch button, a record button, a volume adjustment button, and a charging port; A battery pack (70) is disposed in the lower part of the housing and electrically connected to the main control circuit board (20) for powering the smart interactive device; The communication module includes a wireless communication module, which is used to establish communication connections with remote servers and mobile terminals to transmit voice data, interaction records, control commands, and result data.

2. The intelligent interactive device according to claim 1, characterized in that, The rotating chassis (100) includes an upper chassis (101), a lower chassis (102), a central rotating shaft assembly (103), and a positioning structure. The upper chassis (101) is fixedly connected to the housing, and the lower chassis (102) is fixedly connected to the base (10). The central rotating shaft assembly (103) is used to rotate the upper chassis (101) relative to the lower chassis (102). The positioning structure includes a plurality of positioning grooves (1041) spaced apart along the circumferential direction and elastic positioning elements (1042) that cooperate with the positioning grooves (1041). When the housing rotates relative to the base (10) to a predetermined angle position, the elastic positioning element (1042) is embedded in the corresponding positioning groove (1041) to achieve angle positioning. The plurality of positioning grooves (1041) are spaced apart at 90° angles along the circumferential direction.

3. The intelligent interactive device according to claim 1, characterized in that, The base (10) adopts a multi-leg support structure, and a heat dissipation gap is formed between the base (10) and the bottom of the shell.

4. The intelligent interactive device according to claim 1, characterized in that, The intelligent interactive device also includes a camera module (110), which is located above the first display screen (41) and electrically connected to the main control circuit board (20) for collecting user image information.

5. The intelligent interactive device according to claim 1, characterized in that, The main control circuit board (20) is configured to control at least one of the first display screen (41), the second display screen (42), and the third display screen (43) to output corresponding text information, graphic information, icon information, or status information based on the current interaction state, the type of user input information, or the user operation event.

6. The intelligent interactive device according to claim 1, characterized in that, The mobile terminal is equipped with an application corresponding to the intelligent interactive device. The main control circuit board (20) synchronizes data with the application through the wireless communication module so that the interaction record, audio file and result data are stored and retrieved on the mobile terminal. The main control circuit board (20) is also configured to control the device to enter the recording state and generate an audio file when the recording key is triggered, and send the audio file to the mobile terminal through the wireless communication module.

7. A control method based on the intelligent interactive device according to any one of claims 1 to 6, characterized in that, Includes the following steps: S1. After the device is started, the main control circuit board (20) controls the speaker to output voice prompt information and prompts the user to rotate the housing; when the housing is detected to rotate to a predetermined angle position relative to the base (10), the housing is angularly positioned by the rotating chassis (100); S2. The user's voice signal is acquired through the microphone array and sent to the main control circuit board (20) and / or a remote server for recognition processing to obtain the voice recognition result; S3. The main control circuit board (20) determines the current interaction state based on the voice recognition result, and controls at least one of the first display screen (41), the second display screen (42) and the third display screen (43) to output the corresponding display content based on the current interaction state. S4. At the predetermined interaction node, the main control circuit board (20) determines the target display screen according to the current interaction state, the current orientation of the housing or the type of information to be displayed, and controls the target display screen to display the content to be confirmed, while controlling the speaker to output the prompt information corresponding to the target display screen; S5. The near-field sensing module (90) detects the user's hand approaching and / or touching the corresponding area of ​​the first display screen (41); after detecting a sensing signal that meets the preset conditions, a confirmation command is generated. S6. Output the interaction result according to the confirmation instruction, and send the interaction record and / or result data to the mobile terminal and / or remote server for storage.

8. The control method according to claim 7, characterized in that, Between steps S3 and S4, the main control circuit board (20) outputs the first voice prompt information, delays for a preset time, and then outputs the second voice prompt information to control the rhythm of the voice prompts.

9. The control method according to claim 7, characterized in that, In steps S2 to S6, the main control circuit board (20) synchronously controls the light emission color, brightness and flashing frequency of the ring breathing light (50) according to the current interaction state, and makes the light state of the ring breathing light (50) correspond to the voice output state and display state.

10. The control method according to claim 7, characterized in that, When the recording button is detected to be triggered, the main control circuit board (20) controls the device to enter the recording state and generate a recording file; after receiving the recording sharing instruction, the recording file is sent to the mobile terminal.

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