Docking station and translation system

Abstract

The utility model is suitable for the technical field of docking stations, and provides a docking station and a translation system. The docking station comprises a control unit, a selection unit, a conversion unit, a first interface, a second interface and a third interface. The control unit is electrically connected with the selection unit, the conversion unit, the first interface and the second interface, the selection unit is electrically connected with the first interface and the second interface, and the conversion unit is electrically connected with the first interface and the third interface. According to the docking station, the sound signals collected by the audio equipment can be converted through the conversion unit while the electronic equipment is charged by the extension equipment, and the converted sound signals are transmitted to the electronic equipment, so that the sound signals are translated by the electronic equipment. Therefore, it is ensured that the user can carry out audio translation while charging or data transmission is carried out in transnational communication and international travel, the problem that multi-task operation cannot be carried out at the same time through a single interface of electronic equipment is solved, and convenience and high efficiency are greatly improved.

Description

Technical Field

[0001] This application belongs to the technical field of docking stations, and particularly relates to a docking station and a translation system. Background Art

[0002] In the context of today's globalization, cross-border business activities, international travel, and the development of self-media have made people more closely connected with people and content from all over the world. Language barriers have become a prominent communication problem. In the face of scenarios that require instant communication and translation, the electronic devices (such as smartphones, tablets, etc.) in existing translation systems usually have only one multi-functional interface (such as a USB-C interface). When the interface is occupied by a charger or other expansion device, the electronic device cannot implement the translation function; when the interface is occupied by a wired headset for translation, the electronic device cannot be charged or data cannot be transmitted. When translation and charging or data transmission need to be carried out simultaneously, this design greatly increases the inconvenience of use. Summary of the Utility Model

[0003] The embodiments of this application provide a docking station and a translation system, which can solve the problem that the existing translation system greatly increases the inconvenience of use when translation and charging cannot be carried out simultaneously.

[0004] In a first aspect, the embodiments of this application provide a docking station, including a control unit, a selection unit, a conversion unit, a first interface, a second interface, and a third interface. The control unit is electrically connected to the selection unit, the conversion unit, the first interface, and the second interface respectively. The selection unit is electrically connected to the first interface and the second interface respectively. The conversion unit is electrically connected to the first interface and the third interface respectively;

[0005] When the first interface is electrically connected to an electronic device with a translation function, the second interface is electrically connected to an expansion device, and the third interface is electrically connected to an audio device, the control unit is used to control the selection unit to switch to the first state according to the access signal fed back by the second interface, so that the expansion device charges the electronic device; the control unit is also used to control the conversion unit to convert the sound signal collected by the audio device according to the access signal fed back by the third interface, and transmit the converted sound signal to the electronic device; the control unit is also used to control the conversion unit to convert the translation information of the electronic device into an audio signal according to the access signal fed back by the third interface, and transmit the audio signal to the audio device.

[0006] In a possible implementation manner of the first aspect, the control unit includes a controller, and the controller is electrically connected to the selection unit, the conversion unit, the first interface, and the second interface respectively.

[0007] In a possible implementation of the first aspect, the selection unit includes a multiplexing chip. The control terminal of the multiplexing chip is electrically connected to the control unit. The first terminal of the multiplexing chip is electrically connected to the first interface. The second terminal of the multiplexing chip is electrically connected to the second interface.

[0008] In a possible implementation of the first aspect, the conversion unit includes a conversion chip and an audio processing chip. The first terminal of the conversion chip is electrically connected to the first interface. The second terminal of the conversion chip is electrically connected to the control unit. The third terminal of the conversion chip is electrically connected to the first terminal of the audio processing chip. The second terminal of the audio processing chip is electrically connected to the third interface.

[0009] In a possible implementation of the first aspect, the first interface is a USB TYPE-C interface.

[0010] In a possible implementation of the first aspect, the second interface is a USB TYPE-C interface.

[0011] In a possible implementation of the first aspect, the third interface is an AUDIO interface.

[0012] In a possible implementation of the first aspect, the docking station further includes a switching tube and a buck unit. The control terminal of the switching tube is electrically connected to the second interface. The first conducting terminal of the switching tube is electrically connected to the first interface. The second conducting terminal of the switching tube is electrically connected to the buck unit. The buck unit is configured to step down the voltage output from the second conducting terminal of the switching tube and output a target voltage.

[0013] In a possible implementation of the first aspect, the buck unit includes a buck chip. The input terminal of the buck chip is electrically connected to the second conducting terminal of the switching tube. The output terminal of the buck chip is configured to output the target voltage.

[0014] In a second aspect, an embodiment of the present application provides a docking station, including an electronic device, an expansion device, an audio device, and the docking station according to any one of the first aspect. The electronic device is electrically connected to the first interface in the docking station. The expansion device is electrically connected to the second interface in the docking station. The audio device is electrically connected to the third interface in the docking station.

[0015] The beneficial effects of the embodiments of the present application compared with the prior art are:

[0016] The docking station provided by the embodiment of the present application includes a control unit, a selection unit, a conversion unit, a first interface, a second interface, and a third interface. During actual use, the first interface can be electrically connected to an electronic device with translation function, the second interface can be electrically connected to an expansion device, and the third interface can be electrically connected to an audio device. Among them, the electronic device can be a computer or a mobile phone, and the audio device can be a wired earphone with a microphone function. When the first interface is electrically connected to an electronic device with translation function, the second interface is electrically connected to an expansion device, and the third interface is electrically connected to an audio device, the control unit controls the selection unit to switch to the first state according to the access signal fed back by the second interface, so that the expansion device charges or transfers data to the electronic device. At the same time, the control unit also controls the conversion unit to convert the sound signal collected by the audio device according to the access signal fed back by the third interface, and transmits the converted sound signal to the electronic device. The electronic device performs translation processing on the converted sound signal, and transmits the translation information to the conversion unit through the first interface. The conversion unit converts the translation information into an audio signal and transmits the audio signal to the audio device. The audio device plays the audio signal. It can be seen that the docking station provided by the embodiment of the present application can, while the expansion device charges or transfers data to the electronic device, convert the sound signal collected by the audio device through the conversion unit, and transmit the converted sound signal to the electronic device, so that the electronic device performs translation on the sound signal. This design ensures that users can perform audio translation while charging or transferring data during cross-border communication and international travel, solves the problem that a single interface of an electronic device cannot perform multitasking simultaneously, and greatly improves convenience and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 is a schematic block diagram of a docking station provided by an embodiment of the present application;

[0019] Figure 2 is a flowchart of performing translation processing on a sound signal provided by an embodiment of the present application;

[0020] Figure 3 is a schematic circuit connection diagram of a docking station provided by an embodiment of the present application;

[0021] Figure 4 is a schematic circuit connection diagram of a controller provided by an embodiment of the present application;

[0022] Figure 5 It is a schematic circuit connection diagram of a multiplexer chip provided by an embodiment of the present application;

[0023] Figure 6 It is a schematic circuit connection diagram of a conversion chip provided by an embodiment of the present application;

[0024] Figure 7 It is a schematic circuit connection diagram of an audio processing chip provided by an embodiment of the present application;

[0025] Figure 8 It is a principle block diagram of a docking station provided by another embodiment of the present application;

[0026] Figure 9 It is a schematic circuit connection diagram of a buck chip provided by an embodiment of the present application;

[0027] Figure 10 It is a principle block diagram of a translation system provided by an embodiment of the present application.

[0028] In the figure, 10 is the docking station; 101 is the control unit; 102 is the selection unit; 103 is the conversion unit; 104 is the buck unit; 20 is the electronic device; 30 is the expansion device; 40 is the audio device. Detailed implementation manners

[0029] In the following description, specific details such as specific system architectures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present application. However, those skilled in the art should clearly understand that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details from interfering with the description of the present application.

[0030] It should be understood that when used in the specification of the present application and the appended claims, the term "comprising" indicates the presence of the described features, wholes, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or their combinations.

[0031] It should also be understood that the term "and / or" used in the specification of the present application and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0032] As used in the specification of this application and the appended claims, the term "if" may be construed, depending on the context, as "when" or "once" or "in response to determining" or "in response to detecting". Similarly, the phrase "if determined" or "if [the described condition or event] is detected" may be construed, depending on the context, to mean "once determined" or "in response to determining" or "once [the described condition or event] is detected" or "in response to detecting [the described condition or event]".

[0033] In addition, in the description of the specification of this application and the appended claims, the terms "first", "second", "third", etc. are used only for differentiating descriptions and cannot be construed as indicating or implying relative importance.

[0034] References in the specification of this application to "one embodiment" or "some embodiments" or the like mean that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of this application. Thus, statements such as "in one embodiment", "in some embodiments", "in other some embodiments", "in still other embodiments", etc. that appear in different places in this specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in another way. The terms "comprising", "including", "having", and their variants all mean "including but not limited to", unless otherwise specifically emphasized in another way.

[0035] In the context of today's globalization, cross-border business activities, international travel, and the development of self-media have made people more closely connected with people and content from all over the world. Language barriers have become a prominent communication problem. In the face of scenarios that require instant communication and translation, the electronic devices (such as smartphones, tablets, etc.) in existing translation systems usually have only one multifunctional interface (such as a USB-C interface). When the interface is occupied by a charger or other expansion device, the electronic device cannot implement the translation function; when the interface is occupied by a wired headset for translation, the electronic device cannot be charged or data cannot be transmitted. When translation and charging or data transmission need to be carried out simultaneously, this design greatly increases the inconvenience of use.

[0036] Based on the above problems, the docking station provided by the embodiments of the present application includes a control unit, a selection unit, a conversion unit, a first interface, a second interface, and a third interface. In actual use, the first interface can be electrically connected to an electronic device with a translation function, the second interface can be electrically connected to an expansion device, and the third interface can be electrically connected to an audio device. Among them, the electronic device can be a computer or a mobile phone, and the audio device can be a wired earphone with a microphone function. When the first interface is electrically connected to an electronic device with a translation function, the second interface is electrically connected to an expansion device, and the third interface is electrically connected to an audio device, the control unit controls the selection unit to switch to the first state according to the access signal fed back by the second interface, so that the expansion device charges or transfers data to the electronic device. At the same time, the control unit also controls the conversion unit to convert the sound signal collected by the audio device according to the access signal fed back by the third interface, and transmits the converted sound signal to the electronic device. The electronic device performs translation processing on the converted sound signal, and transmits the translation information to the conversion unit through the first interface. The conversion unit converts the translation information into an audio signal and transmits the audio signal to the audio device. The audio device plays the audio signal. It can be seen that the docking station provided by the embodiments of the present application can, while the expansion device charges or transfers data to the electronic device, convert the sound signal collected by the audio device through the conversion unit, and transmit the converted sound signal to the electronic device, so that the electronic device performs translation on the sound signal. This design ensures that users can perform audio translation while charging or transferring data during cross-border communication and international travel, solves the problem that a single interface of an electronic device cannot perform multitasking, and greatly improves convenience and efficiency.

[0037] To illustrate the technical solutions described in the present application, the following will be described through specific embodiments.

[0038] Figure 1 The principle block diagram of the docking station 10 provided by an embodiment of the present application is shown. Refer to Figure 1 As shown, the docking station 10 includes a control unit 101, a selection unit 102, a conversion unit 103, a first interface, a second interface, and a third interface. The control unit 101 is electrically connected to the selection unit 102, the conversion unit 103, the first interface, and the second interface respectively. The selection unit 102 is electrically connected to the first interface and the second interface respectively. The conversion unit 103 is electrically connected to the first interface and the third interface respectively.

[0039] Specifically, in actual use, the first interface can be electrically connected to the electronic device 20 with translation function, the second interface can be electrically connected to the expansion device 30, and the third interface can be electrically connected to the audio device 40. Among them, the electronic device 20 can be a computer or a mobile phone, and the audio device 40 can be a wired earphone with a microphone function. When the first interface is electrically connected to the electronic device 20 with translation function, the second interface is electrically connected to the expansion device 30, and the third interface is electrically connected to the audio device 40, the control unit 101 controls the selection unit 102 to switch to the first state according to the access signal fed back by the second interface, so that the expansion device 30 charges or transfers data to the electronic device 20. At the same time, the control unit 101 also controls the conversion unit 103 to convert the sound signal collected by the audio device 40 according to the access signal fed back by the third interface, and transmits the converted sound signal to the electronic device 20. The electronic device 20 performs translation processing on the converted sound signal, and transmits the translation information to the conversion unit 103 through the first interface. The conversion unit 103 converts the translation information into an audio signal and transmits the audio signal to the audio device 40. The audio device 40 plays the audio signal. It can be seen that the docking station 10 provided by the embodiment of the present application can, while the expansion device 30 charges or transfers data to the electronic device 20, convert the sound signal collected by the audio device through the conversion unit 103, and transmit the converted sound signal to the electronic device 20, so that the electronic device 20 performs translation on the sound signal. This design ensures that users can perform audio translation while charging or transferring data during cross-border communication and international travel, solves the problem that a single interface of the electronic device 20 cannot perform multitasking, and greatly improves the convenience and efficiency.

[0040] Exemplarily, the expansion device 30 connected to the second interface can be a PD (Power Delivery) charger to charge the electronic device 20, and the second interface has a data transmission capacity of 10 Gbps bandwidth. Connecting a storage device, for example, can perform fast data transmission. The second interface can also be connected to a video expansion device, etc. For example, a video expansion device with a resolution of 4K / 60Hz can be selected. The second interface can also be connected to a display. The display is provided with operation buttons and a display screen, so as to realize multi-functional use of one device.

[0041] It should be noted that the first interface can be a USB TYPE-C interface and can be connected to the electronic device 20. The second interface can be a USB TYPE-C interface and can be connected to the expansion device 30. The third interface can be an AUDIO interface and can be connected to the audio device 40. Among them, the USB TYPE-C interface mainly includes data transmission pins, DisplayPort pins, HDMI (High-Definition Multimedia Interface) pins, Thunderbolt pins, etc.

[0042] It should be noted that when the electronic device 20 is used for translation, the corresponding translation application software needs to be downloaded from the application store of the electronic device 20. After successful installation, the first interface of the docking station 10 is connected to the electronic device 20, so that the translation application software and the docking station 10 can handshake successfully. The user can click to enter the translation application software, select the language of the voice signal and the language of the translated and converted audio signal, and select the translation mode. After determining the languages and the translation mode of both, the translation application software can send a translation request to the server. The server can quickly recognize the received voice signal and translate the voice signal according to the set translation mode. The translation information is transmitted to the conversion unit 103 through the first interface. The conversion unit 103 converts the translation information into an audio signal and transmits the audio signal to the audio device 40, and the audio device 40 plays it, so as to realize the translation and playback of the voice signal. At the same time, the translated text information will also be displayed on the translation application software. Among them, the server can select an AI (Artificial Intelligence) cloud server. The audio signal can also be transmitted to the electronic device 20 and played through the speaker of the electronic device 20 itself (only when the face-to-face translation mode is selected) and the speaker of the audio device 40 in other modes.

[0043] It should be noted that the electronic device 20 can also restore the translated language to the set voice output according to the emotional expressions such as the weight of the voice of the received voice signal. In addition, this voice output also supports the voice-changing function. The user can choose the voice he likes to play according to his own preference. For example, a gentle female voice, a magnetic male voice, etc. The flowchart of the translation processing of the tone, semantics and timbre of the voice is as Figure 2 shown. Among them, the tone includes emotion, pause and speech rate. The electronic device 20 can perform emotion recognition on the tone, perform real-time writing, text translation and processing on the semantics, perform timbre encoding on the timbre, and finally perform speech synthesis and timbre conversion on the three, so as to output the translated audio signal.

[0044] It should be noted that the five translation modes developed currently are: call interpretation mode, online live translation mode, audio-visual translation mode, on-site listening and interpretation mode, and face-to-face translation mode. The five translation modes can meet various translation needs. Different translation modes correspond to different function interfaces.

[0045] It should be noted that the translation application software has an AI intelligent translation function. By using the current latest AI large model technology with hundreds of billions of parameters, it can flexibly call the CPU (Central Processing Unit), GPU (Graphics Processing Unit) of the electronic device 20 (mobile phone or computer) and the cloud server for collaborative processing, providing two-way voice simultaneous interpretation and real-time translation of the APP (Application) sound for users. At the same time, it supports simultaneous interpretation in at least 14 languages and the function of voice-to-text conversion. It solves the problems that the products on the current market mainly rely on rules and phrase tables, can only translate sentence by sentence unidirectionally, cannot handle complex language structures and contexts, can only translate in specific application interfaces, and the translation is inaccurate.

[0046] In an embodiment of the present application, as Figure 3 shown, the control unit 101 includes a controller, and the controller is electrically connected to the selection unit 102, the conversion unit 103, the first interface, and the second interface respectively.

[0047] Specifically, the controller is electrically connected to the first interface and the second interface respectively. When the second interface is connected to the expansion device 30, it can control the selection unit to switch to the first state according to the access signal fed back by the second interface, so that the expansion device 30 charges the electronic device 20 connected to the first interface. The controller is connected to the selection unit 102 and can perform IO (Input / Output) communication with the selection unit 102. The controller is electrically connected to the conversion unit 103 and can perform data transmission with the conversion unit 103.

[0048] It should be noted that CC communication is adopted between the controller and the first interface and between the controller and the second interface.

[0049] Exemplarily, the controller can select a highly integrated single-chip DisplayPort Alt mode and Power Delivery 3.0 controller with the model number VL105-QFN48, which is applicable to USB-C devices and is designed specifically for USB-C multi-functional bases with direct charging and interchangeable audio adapters. The circuit diagram and the schematic diagram of the peripheral circuit connection of the controller are as Figure 4 shown.

[0050] In an embodiment of the present application, as Figure 3As shown, the selection unit 102 includes a multiplexing chip. The control terminal of the multiplexing chip is electrically connected to the control unit 101. The first terminal of the multiplexing chip is electrically connected to the first interface, and the second terminal of the multiplexing chip is electrically connected to the second interface.

[0051] Specifically, the first terminal of the multiplexing chip is correspondingly electrically connected to multiple pins of the first interface, and the second terminal of the multiplexing chip is correspondingly electrically connected to multiple pins of the second interface. The multiplexing chip can perform IO communication with the controller and perform state switching according to the control instructions output by the controller. As Figure 5 shown, the model of the multiplexing chip can be selected as MUX VL171. MUX VL171 uses a crossbar switch to switch between 4-channel DisplayPort source inputs and 2-channel USB 3.1 host inputs to a USB-C connector, and supports up to USB 3.1 for multiplexing signal performance. Among them, MUX VL171 integrates an internal low-dropout voltage regulator, and the power supply voltage is 3.3V.

[0052] In an embodiment of the present application, as Figure 3 shown, the conversion unit 103 includes a conversion chip and an audio processing chip. The first terminal of the conversion chip is electrically connected to the first interface, the second terminal of the conversion chip is electrically connected to the control unit 101, the third terminal of the conversion chip is electrically connected to the first terminal of the audio processing chip, and the second terminal of the audio processing chip is electrically connected to the third interface.

[0053] Specifically, the first terminal of the conversion chip can perform data interaction with the electronic device 20, the second terminal of the conversion chip can perform data interaction with the controller, and the third terminal of the conversion chip can perform data interaction with the first terminal of the audio processing chip. The audio processing chip can receive the voice signal transmitted by the audio device 40, perform processing such as recognition and synthesis on the voice signal, and output the processed voice signal to the conversion chip. The conversion chip converts the voice signal and transmits the converted voice signal to the electronic device 20. The audio processing chip can also recognize the translated audio signal output by the electronic device 20 and transmit it to the audio device 40 through the third interface.

[0054] It should be noted that two USB2.0 connections are used between the second terminal of the conversion chip and the controller. One USB2.0 connection is used for both the first terminal and the third terminal of the conversion chip.

[0055] Exemplarily, as Figure 6 shown, the model of the conversion chip can be selected as VL122-QFN28. As Figure 7 shown, the model of the audio processing chip can be selected as KA4120-QFN48.

[0056] In an embodiment of the present application, asFigure 8 As shown in the figure, the docking station 10 further includes a switching tube and a step-down unit 104. The control end of the switching tube is electrically connected to the second interface, the first conducting end of the switching tube is electrically connected to the first interface, and the second conducting end of the switching tube is electrically connected to the step-down unit 104. The step-down unit 104 is configured to step down the voltage output from the second conducting end of the switching tube and output a target voltage.

[0057] Specifically, the gate of the switching tube serves as the control end, the source of the switching tube serves as the first conducting end, and the drain of the switching tube serves as the second conducting end. The switching tube is used to regulate the voltage to ensure the normal operation of the electronic device 20. When the switching tube is in the conducting state, the step-down unit 104 can step down the voltage output from the drain of the switching tube and output a target voltage.

[0058] Exemplarily, the switching tube can be selected as a PMOS tube. The voltage transmitted to the gate of the switching tube can be 5 - 20V, and the input voltage of the source of the switching tube can be 5 - 20V. The target voltage output by the step-down unit 104 is 5V. As Figure 9 shown in the figure, the step-down unit 104 includes a step-down chip. The input end of the step-down chip is electrically connected to the second conducting end of the switching tube, and the output end of the step-down chip is used to output a target voltage. Among them, the model of the step-down chip can be selected as JW5017S.

[0059] This application also discloses a translation system. As Figure 10 shown in the figure, the translation system includes an electronic device 20, an expansion device 30, an audio device 40, and the above-mentioned docking station 10. The electronic device 20 is electrically connected to the first interface in the docking station 10, the expansion device 30 is electrically connected to the second interface in the docking station 10, and the audio device 40 is electrically connected to the third interface in the docking station 10.

[0060] Specifically, in actual use, the first interface of the docking station 10 can be electrically connected to the electronic device 20 to enable the translation application software on the electronic device 20 to successfully handshake with the docking station 10. The third interface of the docking station 10 is electrically connected to the audio device 40, and the second interface of the docking station 10 is electrically connected to the expansion device 30. The translation application software can send a translation request to the server, and the server can quickly identify the received sound signal and translate the sound signal according to the set translation mode. The translation system provided by the embodiments of this application, by setting the docking station 10, this design ensures that users can perform audio translation while charging or transferring data during cross-border communication and international travel, solves the problem that the single interface of the electronic device 20 cannot perform multitasking, and greatly improves the convenience and efficiency.

[0061] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements 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 the present application, and should all be included within the protection scope of the present application.

Claims

1. A docking station, characterized in that: It includes a control unit, a selection unit, a conversion unit, a first interface, a second interface and a third interface, wherein the control unit is electrically connected to the selection unit, the conversion unit, the first interface and the second interface respectively, the selection unit is electrically connected to the first interface and the second interface respectively, and the conversion unit is electrically connected to the first interface and the third interface respectively; When the first interface is electrically connected to an electronic device with a translation function, the second interface is electrically connected to an expansion device, and the third interface is electrically connected to an audio device, the control unit is used to control the selection unit to switch to the first state according to the access signal fed back by the second interface, so that the expansion device charges the electronic device; the control unit is also used to control the conversion unit to convert the sound signal collected by the audio device according to the access signal fed back by the third interface, and transmit the converted sound signal to the electronic device; the control unit is also used to control the conversion unit to convert the translation information of the electronic device into an audio signal according to the access signal fed back by the third interface, and transmit the audio signal to the audio device.

2. The expansion dock according to claim 1, characterized in that: The control unit includes a controller, and the controller is electrically connected to the selection unit, the conversion unit, the first interface, and the second interface respectively.

3. The expansion dock according to claim 1, characterized in that: The selection unit includes a multi-way selection chip, a control end of the multi-way selection chip is electrically connected to the control unit, a first end of the multi-way selection chip is electrically connected to the first interface, and a second end of the multi-way selection chip is electrically connected to the second interface.

4. The expansion dock according to claim 1, characterized in that: The conversion unit includes a conversion chip and an audio processing chip, the first end of the conversion chip is electrically connected to the first interface, the second end of the conversion chip is electrically connected to the control unit, the third end of the conversion chip is electrically connected to the first end of the audio processing chip, and the second end of the audio processing chip is electrically connected to the third interface.

5. The expansion dock according to claim 1, characterized in that: The first interface is a USB TYPE-C interface.

6. The expansion dock according to claim 1, characterized in that: The second interface is a USB TYPE-C interface.

7. The expansion dock according to claim 1, characterized in that: The third interface is an AUDIO interface.

8. The expansion dock according to any one of claims 1 to 7, characterized in that: The expansion dock also includes a switch tube and a step-down unit. The control end of the switch tube is electrically connected to the second interface, the first conduction end of the switch tube is electrically connected to the first interface, and the second conduction end of the switch tube is electrically connected to the step-down unit. The step-down unit is used to step down the voltage output by the second conduction end of the switch tube and output a target voltage.

9. The expansion dock according to claim 8, characterized in that: The buck unit comprises a buck chip, an input end of the buck chip is electrically connected to the second conduction end of the switch tube, and an output end of the buck chip is used to output the target voltage.

10. A translation system, characterized in that: It comprises an electronic device, an expansion device, an audio device and the expansion dock as described in any one of claims 1 to 9, wherein the electronic device is electrically connected to a first interface in the expansion dock, the expansion device is electrically connected to a second interface in the expansion dock, and the audio device is electrically connected to a third interface in the expansion dock.

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