Screen display device, method for controlling screen display device, and vehicle

Abstract

The invention discloses a screen display device, a control method of the screen display device and a vehicle, and relates to the technical field of vehicles. The screen display device can be connected with a main control unit, and the screen display device comprises a wired communication module which is used for providing wired communication with the main control unit for the screen display device; the wireless communication module is used for providing wireless communication with the main control unit for the screen display device; and the control module is configured to select the wired communication module or the wireless communication module to send a user operation signal acquired by the screen display device to the main control unit according to the connection state of the screen display device and the main control unit. The problem that the operation convenience and the overall riding experience of the personnel in the vehicle are reduced due to limitation of the personnel in the vehicle for controlling the auxiliary screen in the vehicle is effectively solved.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, specifically to a screen display device, a control method for the screen display device, and a vehicle. Background Technology

[0002] To enhance comfort and convenience within vehicles, many vehicles are equipped with auxiliary screens. These screens are connected to the vehicle's main control unit (the central control screen) via wired connections, allowing occupants (especially non-driver passengers) to control various in-vehicle devices, such as the audio system, navigation system, air conditioning and heating, car phone, and device function settings (e.g., seat position, lighting settings, driving modes).

[0003] In related technologies, in-vehicle auxiliary screens can only be used when fixed in a specific location, which limits the operation of these screens by vehicle occupants. For example, when the auxiliary screen is fixed to the rear seat armrest, rear passengers can only touch and operate it when sitting upright, but cannot touch it when reclining. The inability of vehicle occupants to freely operate the auxiliary screen from any posture or position, and thus control in-vehicle equipment, leads to inconvenience and affects operational convenience and the overall passenger experience. Summary of the Invention

[0004] The purpose of this application is to provide a screen display device, a control method for the screen display device, and a vehicle to solve the problem that the operation of the auxiliary screen inside the vehicle by the occupants is limited, which reduces the convenience of operation for the occupants and the overall riding experience.

[0005] To achieve the above objectives, the first aspect of this application provides a screen display device capable of establishing a connection with a main control unit, comprising:

[0006] A wired communication module is used to provide wired communication between the screen display device and the main control unit;

[0007] A wireless communication module is used to provide wireless communication between the screen display device and the main control unit;

[0008] The control module is configured to select either the wired communication module or the wireless communication module to send the user operation signal acquired by the screen display device to the main control unit based on the connection status between the screen display device and the main control unit.

[0009] In this embodiment of the application, the wired communication module includes a communication interface, which is used to connect to the main control unit via a communication line.

[0010] When the communication interface is wired to the main control unit via a communication line, the control module selects the wired communication module to send the user operation signal;

[0011] When the communication interface is disconnected from the main control unit, the control module selects the wireless communication module to send the user operation signal.

[0012] In this embodiment, the screen display device can be connected to a base. The base is provided with communication contacts and charging contacts. Both the communication contacts and the charging contacts are connected to the main control unit. The screen display device is provided with a communication interface and a charging interface. When either the charging interface or the communication interface is connected to a corresponding contact in the base, the other interface of the charging interface and the other communication interface are connected to another contact in the base.

[0013] In this embodiment of the application, the screen display device further includes an input module and a signal switching module, wherein the input module is used to acquire the user operation signal;

[0014] The control module is specifically configured as follows:

[0015] When it is determined that the communication interface and the main control unit have switched from disconnection to wired connection via communication line, a first signal switching command is generated and sent to the signal switching module. The signal switching module connects the wired communication module and the input module so as to send the user operation signal through the wired communication module.

[0016] When it is determined that the communication interface and the main control unit have switched from a wired connection via a communication line to a disconnection, a second signal switching command is generated and sent to the signal switching module. The signal switching module connects the wireless communication module and the input module so that the user operation signal can be sent through the wireless communication module.

[0017] In this embodiment of the application, the input module includes a touch screen and a built-in touch chip, and the user operation signal includes at least the touch signal of the touch screen.

[0018] In this embodiment of the application, the wired communication module further includes a deserializer, which is used to convert the multimedia signals sent by the main control unit.

[0019] A second aspect of this application provides a method for controlling a screen display device, comprising the following steps:

[0020] Obtain the connection status with the main control unit;

[0021] Based on the connection status with the main control unit, a wired communication module or a wireless communication module is selected to send the acquired user operation signal to the main control unit, including:

[0022] When the connection status with the main control unit is wired, the user operation signal is sent to the main control unit through the wired communication module;

[0023] When the connection status with the main control unit is wireless, the user operation signal is sent to the main control unit through the wireless communication module.

[0024] In this embodiment of the application, the wired communication module includes a communication interface; obtaining the connection status with the main control unit includes:

[0025] When it is detected that the communication interface is connected to the main control unit via a communication line, the connection status with the main control unit is determined to be a wired connection;

[0026] When the communication interface is detected to be disconnected from the main control unit, the connection status with the main control unit is determined to be a wireless connection.

[0027] In this embodiment of the application, when the connection status with the main control unit is wireless, sending the user operation signal to the main control unit through the wireless communication module includes:

[0028] When the connection status with the main control unit is wireless, a control signal is generated based on the user operation signal, and the control signal is sent to the main control unit through the wireless communication module.

[0029] In this embodiment, the screen display device includes an input module and a signal switching module; the method further includes:

[0030] When it is determined that the connection with the main control unit has switched from disconnection to wired connection via communication line, a first signal switching command is generated and sent to the signal switching module. The signal switching module connects the wired communication module and the input module so as to send the user operation signal through the wired communication module.

[0031] When it is determined that the connection with the main control unit has been switched from wired connection to disconnection via communication line, a second signal switching command is generated and sent to the signal switching module. The signal switching module connects the wireless communication module and the input module so that the user operation signal can be sent through the wireless communication module.

[0032] In this embodiment of the application, the screen display device has a display interface, and the method further includes:

[0033] When the connection with the main control unit is a wired connection, the multimedia signal sent by the main control unit is received through the wired communication module and converted, and the conversion result is displayed through the display interface.

[0034] In this embodiment of the application, the method further includes:

[0035] When the connection status with the main control unit is wired, if it is determined that no user operation signal is obtained within a preset time period, the display content of the main control unit's display interface is obtained based on the wired communication module and displayed synchronously through the display interface.

[0036] A third aspect of this application provides a vehicle including a main control unit and the screen display device described in the first aspect.

[0037] In this embodiment of the application, a base is also included, on which a communication contact is provided, and a communication interface that cooperates with the communication contact is provided on the screen display device. The communication interface is connected to the communication contact to realize a wired connection between the screen display device and the main control unit.

[0038] The screen display device, the control method for the screen display device, and the vehicle provided in this application embodiment enable the screen display device and the main control unit to establish communication connections in different ways under different connection states. The user operation signals obtained by the screen display device are sent to the main control unit through the corresponding communication module so that the main control unit can perform corresponding processing. Since the screen display device has both wired and wireless communication modes, when the position of the screen display device needs to move with the user's position, it can switch to wireless communication mode to send control signals to the main control unit. This enables the occupants of the vehicle to freely operate the screen display device in any position and posture (such as sitting, lying down, or tilting) in the vehicle, thereby controlling the in-vehicle equipment. This effectively solves the limitations of the occupants operating the auxiliary screen in the vehicle and improves the convenience of the user in controlling various devices in the vehicle.

[0039] Other features and advantages of the embodiments of this application will be described in detail in the following detailed description section. Attached Figure Description

[0040] The accompanying drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the following detailed description to explain the embodiments of this application, but do not constitute a limitation on the embodiments of this application. In the drawings:

[0041] Figure 1 This schematic diagram illustrates a structural block diagram of a screen display device according to an embodiment of the present application;

[0042] Figure 2This illustration shows a schematic diagram of the connection between the main control unit and the screen display device in an embodiment of this application;

[0043] Figure 3 The illustration shows a flowchart of an operation method of a screen display device according to an embodiment of the present application. Detailed Implementation

[0044] 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. It should be understood that the specific embodiments described herein are only for illustration and explanation of the embodiments of this application and are not intended to limit the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0045] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0046] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0047] Figure 1 A schematic block diagram illustrating a screen display device according to an embodiment of this application is shown. Figure 1 As shown in the figure, this application provides a screen display device that can establish a connection with a main control unit. The screen display device includes a wired communication module, a wireless communication module, and a control module. The following describes the various components of the screen display device.

[0048] The wired communication module is used to provide wired communication between the screen display device and the main control unit.

[0049] The wireless communication module is used to provide wireless communication between the screen display device and the main control unit.

[0050] The control module is configured to select either the wired communication module or the wireless communication module to send the user operation signal acquired by the screen display device to the main control unit based on the connection status between the screen display device and the main control unit.

[0051] In this embodiment of the application, the connection status between the screen display device and the main control unit includes wired connection and wireless connection. A wired connection indicates that there is a wired link between the screen display device and the main control unit and the wired link is in a connected state, and the two can communicate via wired means. A wireless connection indicates that there is no connected wired link between the screen display device and the main control unit, and the two cannot communicate via wired means.

[0052] In one specific embodiment, the screen display device has a Bluetooth pairing function, and the wireless communication module adopts a Bluetooth communication module to enable the main control unit to quickly receive the user operation signal. Specifically, before the screen display device sends the user operation signal to the main control unit, the screen display device and the main control unit establish wireless communication via Bluetooth pairing based on the wireless communication module. After Bluetooth pairing is completed, when the connection state between the screen display device and the main control unit switches to wireless connection, the control module directly establishes a connection between the screen display device and the main control unit through the wireless communication module, thereby realizing signal transmission. Since establishing wireless communication between devices via Bluetooth pairing is existing technology, it will not be described in detail here.

[0053] In this embodiment, when the screen display device and the main control unit are connected via a wired connection, the control module selects the wired communication module to send the user operation signal to the main control unit, ensuring that the main control unit can receive the user operation signal while achieving high stability and reliability in signal transmission. When the screen display device and the main control unit are connected via a wireless connection, the control module selects the wireless communication module to send the user operation signal to the main control unit, ensuring that the main control unit can receive the user operation signal. When the screen display device and the main control unit are connected via a wireless connection, it indicates that there is no wired connection between the screen display device and the main control unit. In this case, the screen display device can communicate with the main control unit from any position in the vehicle (such as the front or rear seats), meaning that the user can freely operate the screen display device from any position in the vehicle and in any posture, sending user operation signals to the main control unit through the screen display device to control the in-vehicle equipment. It is worth mentioning that, in the embodiments of this application, the screen display device and the main control unit can communicate within the overlapping area of ​​their wireless connection ranges. That is, when the overlapping area of ​​their wireless connection ranges includes a portion of the vehicle's exterior, the user can also operate the screen display device within that area to control in-vehicle equipment.

[0054] It should be understood that, in this embodiment, the screen display device includes at least multiple display interfaces, such as a wireless connection interface, an air conditioning control interface, and a seat control interface. Different display interfaces have corresponding entry names and / or entry icons, allowing users to access them by touching the touchscreen of the screen display device. When displaying a specific interface, the screen display device can acquire user operation signals generated by touch or other operations, and then send them to the main control unit. Upon receiving the signal, the main control unit processes it accordingly. For example, when the user operation signal is to increase the air conditioning temperature, the main control unit sends the signal to the vehicle ECU, which responds to the signal to fulfill the user's request.

[0055] It is easy to see that the screen display device provided in this application embodiment establishes different communication connections with the main control unit under different connection states. The user operation signals obtained by the screen display device are sent to the main control unit through a corresponding communication module (i.e., the wired communication module or the wireless communication module), so that the main control unit processes the received signals accordingly, thereby controlling the in-vehicle equipment. This application embodiment enables the screen display device and the main control unit to communicate under different connection states, allowing occupants to freely operate the screen display device from any position and in any posture within the vehicle. That is, the screen display device can send user operation signals to the main control unit from any position within the vehicle to control the in-vehicle equipment, improving the convenience of operation and the overall passenger experience.

[0056] In this embodiment, the wired communication module includes a communication interface, which is used to connect to the main control unit via a communication line.

[0057] Specifically, when the communication interface is wired to the main control unit via a communication line, the control module selects the wired communication module to send the user operation signal; when the communication interface is disconnected from the main control unit, the control module selects the wireless communication module to send the user operation signal.

[0058] Understandably, when the communication interface is connected to the main control unit via a communication cable, it indicates that the connection between the screen display device and the main control unit is a wired connection; when the communication interface is disconnected from the main control unit (i.e., the communication interface and the main control unit are not connected via a communication cable), it indicates that the connection between the screen display device and the main control unit is a wireless connection.

[0059] In one specific embodiment, one end of the communication cable is directly connected to the main control unit, and the other end can be inserted into the communication interface of the screen display device to achieve a wired connection between the screen display device and the main control unit. In this specific embodiment, the screen display device may have a charging function to ensure that the screen display device can be in an operable state.

[0060] This application embodiment implements a wired connection between the communication interface and the main control unit based on a communication line, which facilitates the control module to quickly determine the specific communication module that sent the user operation signal when it receives the user operation signal, thereby ensuring that the main control unit can receive the user operation signal.

[0061] In one specific embodiment, the screen display device is connectable to a base, the base being provided with communication contacts and charging contacts, both of which are connected to the main control unit. The screen display device is provided with a communication interface and a charging interface. When either the charging interface or the communication interface is connected to a corresponding contact in the base, the other interface of the charging interface and the other communication interface are connected to another contact in the base.

[0062] The screen display device is detachably connected to the base. The communication contacts on the base correspond to the communication interface on the screen display device, and the charging contacts on the base correspond to the charging interface on the screen display device. When the communication contacts are connected to the communication interface, the charging contacts are connected to the charging interface. Similarly, when the charging contacts are connected to the charging interface, the communication contacts are connected to the communication interface.

[0063] In this specific embodiment, the communication contacts on the base are wired to the main control unit via a communication line, and the charging contacts are wired to the main control unit via a power line. The base can be installed, for example, on the armrest of the rear seat in a vehicle. This application embodiment does not specifically limit the installation location of the base.

[0064] Understandably, when the communication contact is connected to the communication interface, it indicates that the communication interface and the main control unit are connected via a communication line. At this time, the charging contact is connected to the charging interface, so the screen display device can be powered by the main control unit.

[0065] In this specific embodiment, the screen display device also has a built-in charging management module and a battery module. The charging management module is connected to the battery module. The charging management module is configured to: when the screen display device is connected to the main control unit via a wired connection, acquire power from the power module in the main control unit to control the charging of the battery module and the power supply to other modules in the screen display device; when the screen display device is connected to the main control unit via a wireless connection, control the battery module to supply power to other modules in the screen display device.

[0066] This specific implementation establishes a wired link between the screen display device and the main control unit by connecting the communication contacts and the communication interface, ensuring the wired link remains connected. When the screen display device is connected to the base, it communicates with the main control unit via the wired communication module. When the screen display device is not connected to the base, it communicates with the main control unit via the wireless communication module. This implementation allows users to conveniently operate in-vehicle equipment regardless of the connection status between the screen display device and the base, reducing limitations on user control and improving user experience. Furthermore, the main control unit supplies power to the screen display device, ensuring its operability.

[0067] In this specific embodiment, the screen display device further includes an input module and a signal switching module, wherein the input module is used to acquire the user operation signal.

[0068] The input module includes a touchscreen and a built-in touch chip, and the user operation signals include at least the touch signals from the touchscreen. Specifically, the touchscreen is used to acquire touch signals generated by the user on the touchscreen, and the built-in touch chip is used to acquire the position information of the touch signals generated by the user on the touchscreen to determine the user's intention. Alternatively, the user operation signals can also be button signals generated by the user operating physical buttons on the screen display device.

[0069] When the screen display device includes an input module and a signal switching module, the control module is configured to: when it is determined that the communication interface and the main control unit have switched from disconnected to wired connection via a communication line, generate a first signal switching command and send it to the signal switching module, thereby connecting the wired communication module and the input module through the signal switching module to send the user operation signal through the wired communication module; when it is determined that the communication interface and the main control unit have switched from wired connection via a communication line to disconnected, generate a second signal switching command and send it to the signal switching module, thereby connecting the wireless communication module and the input module through the signal switching module to send the user operation signal through the wireless communication module.

[0070] In this embodiment, the first signal switching instruction indicates that the screen display device establishes communication with the main control unit through the wired communication module, and the second signal switching instruction indicates that the screen display device establishes communication with the main control unit through the wireless communication module. This specific implementation, based on the signal switching module, enables the screen display device and the main control unit to autonomously switch signal transmission modes when the connection status changes, ensuring that the main control unit can receive and process user operation signals, thereby fulfilling user needs.

[0071] Figure 2 This diagram schematically illustrates the connection between the screen display device and the main control unit in an embodiment of this application. Figure 2 As shown, the screen display device (corresponding to) Figure 2 The display screen 1) includes a wired communication module and a wireless communication module (corresponding to...). Figure 2 The right-hand side of the BT module), control module, input module, and signal switching module (corresponding to...) Figure 2 (Switch) and battery module (corresponding) Figure 2 The input module includes a touchscreen (corresponding to the Battery). Figure 2 (Display) and built-in touch chip (corresponding to) Figure 2 The touch screen device is equipped with a communication interface and a charging interface. The input terminal of the signal switching module is connected to the control module and the built-in touch chip. The control module employs a system-on-a-chip (SoC) with high integration and low power consumption. Figure 2 The SOC on the right side of the chip; the wireless communication module uses a Bluetooth communication module to establish wireless communication with the main control unit. The main control unit includes a system-on-a-chip (SOC) on the right side of the chip. Figure 2 The left side of the middle section contains the SOC, Microcontroller Unit (MCU), and Wireless Communication Unit (corresponding to...). Figure 2 The left side of the middle section contains the BT module, serializer, and CAN transceiver (corresponding to...). Figure 2 (CAN Transceiver) and power module (corresponding to) Figure 2 The Power Block (in the context of the device), wherein the wireless communication unit uses a Bluetooth communication module to establish wireless communication with the screen display device; the serializer uses a coaxial cable (corresponding to...) Figure 2The video (i.e., the communication line) is connected to the communication contact so that the screen display device can establish wired communication with the main control unit through the communication interface and the wired communication module. The power module also establishes wired communication with the vehicle's electronic control unit (ECU) through the CAN BUS. The ECU is connected to the vehicle's battery system, and the main control unit is powered by the vehicle's battery system.

[0072] like Figure 2 As shown, when the control module determines that the communication interface and the main control unit have switched from disconnected to wired connection via a communication line, the control module sends a first signal switching command to the signal switching module via GPIO, causing the signal switching module to switch to I2C1 and INT1, making the I2C1 channel and the INT1 channel connected and the I2C2 channel and the INT2 channel disconnected. When the user generates a user operation signal on the touch screen of the screen display device, the built-in touch chip first notifies the main control unit through the INT1 channel, and sends the location information of the user operation signal to the main control unit through the I2C1 channel. The main control unit determines the user's intention based on the location information and then performs corresponding processing.

[0073] When the control module determines that the communication interface and the main control unit have switched from a wired connection via a communication line to a disconnection, the control module sends a second signal switching command to the signal switching module via GPIO, causing the signal switching module to switch to I2C2 and INT2, connecting the I2C2 and INT2 channels and disconnecting the I2C1 and INT1 channels. When a user generates a user operation signal on the touchscreen of the screen display device, the built-in touch chip first notifies the control module via the INT2 channel and sends the location information of the user operation signal to the control module via the I2C2 channel. The control module determines the user's intention based on the location information, generates a corresponding control signal based on the user's intention, and sends the generated control signal to the main control unit via the wireless communication module for corresponding processing.

[0074] As one possible implementation, when the charging interface is connected to the charging contacts, the main control unit provides 5V power to the charging contacts of the base through its internal power module to power the screen display device. The specific current during the power supply process can be determined according to the actual power consumption requirements of the screen display device. When the charging interface receives 5V power, the charging management module (corresponding to...) Figure 2The PMIC (Power Management Module) in the device can manage the charging of the battery module. When the charging interface does not receive 5V power, the charging management module controls the battery module to supply power to other modules of the screen display device. It is worth noting that the contacts (including communication contacts and charging contacts) on the base and the interfaces (including communication interfaces and charging interfaces) on the screen display device can be connected via pogo pins, USB, etc. This application does not specifically limit the connection method between the two.

[0075] In this embodiment of the application, the main control unit has video output capability, and the screen display device can also receive multimedia signals (such as images, audio, and video) sent by the main control unit through the wired communication module. That is to say, the main control unit and the screen display device communicate in full-duplex mode.

[0076] Based on this, in this embodiment, the wired communication module further includes a deserializer, which is used to convert the multimedia signals sent by the main control unit. Taking a video file as an example, the main control unit can transmit the video to be played through its internal SOC to the communication contacts of the base via the serializer. The screen display device receives the video signal output by the main control unit through the communication interface and sends it to the deserializer. The deserializer converts the video signal into a video stream and transmits it to the control module, so that the control module can display the video on the touch screen of the screen display device. It can be understood that when the main control unit communicates with the screen display device via wired connection, it can enable the screen display device to receive and convert multimedia signals for display, such as navigation routes and itinerary arrangements, thereby achieving information sharing. It is worth mentioning that in this embodiment, navigation routes, itinerary arrangements, and other driving-related information are all multimedia signals.

[0077] Optionally, the screen display device further includes a vibration module and a sensor module, and the display interface of the screen display device further includes a virtual remote control interface and a virtual gamepad interface, wherein:

[0078] The vibration module is configured to vibrate when the screen display device receives a tactile feedback signal from the main control unit, provided that the screen display device displays the virtual controller interface.

[0079] The sensor module is configured to acquire the posture data of the screen display device and feed it back to the main control unit when the screen display device displays the virtual controller interface.

[0080] The screen display device of this application provides a virtual remote control interface to facilitate more convenient operation in specific scenarios (e.g., selecting a TV channel to play); by setting a vibration module (e.g., a vibration motor) and a sensor module (e.g., an IMU) in the screen display device, the screen display device enhances the user experience and interaction when used as a virtual controller.

[0081] Furthermore, in this embodiment, the display interface used for controlling in-vehicle equipment using the screen display device can be consistent with the corresponding display interface in the main control unit, thereby reducing the time cost for users to learn how to use the screen display device.

[0082] Figure 3 The illustration schematically shows a flowchart of a control method for a screen display device according to an embodiment of this application. For example... Figure 3 As shown in the figure, this application provides a control method for a screen display device, which may include the following steps.

[0083] Step 200: Obtain the connection status with the main control unit.

[0084] The connection status with the main control unit is divided into wired connection and wireless connection. A wired connection indicates that there is a wired link between the main control unit and the wireless connection, and the two can communicate via wired means. A wireless connection indicates that there is no wired link between the wireless connection and the wireless connection, and the two cannot communicate via wired means.

[0085] Understandably, in step 200, obtaining the connection status with the main control unit specifically means obtaining the current connection status with the main control unit, so as to send a user operation signal to the main control unit through the corresponding communication module according to the current connection status, thereby responding to the user's needs.

[0086] Step 400: Select either a wired communication module or a wireless communication module to send the acquired user operation signal to the main control unit based on the connection status with the main control unit.

[0087] In this embodiment of the application, step 400 includes:

[0088] Step 410: When the connection status with the main control unit is wired, the user operation signal is sent to the main control unit through the wired communication module.

[0089] Step 420: When the connection status with the main control unit is wireless, the user operation signal is sent to the main control unit through the wireless communication module.

[0090] It should be noted that, in this embodiment of the application, the user operation signal specifically refers to the in-vehicle equipment control signal, wherein the in-vehicle equipment includes the main control unit.

[0091] It is easy to see that, in this embodiment, by establishing different communication connections with the main control unit under different connection states, the user operation signals obtained by the screen display device are sent to the main control unit through corresponding communication modules, so that the main control unit can process the received signals accordingly, thereby realizing the control of in-vehicle equipment. This embodiment enables the screen display device and the main control unit to communicate under different connection states, allowing occupants to freely operate the screen display device from any position and in any posture within the vehicle. That is, the screen display device can send user operation signals to the main control unit from any position within the vehicle, thereby controlling in-vehicle equipment, improving the convenience of operation for occupants and the overall passenger experience.

[0092] In this embodiment of the application, before step 200, the method further includes:

[0093] Step 100: The wireless communication module is paired and connected with the wireless communication unit in the main control unit.

[0094] This application embodiment ensures that when the connection status with the main control unit is determined to be a wireless connection, the user operation signal can be sent to the main control unit by pairing and connecting with the wireless communication unit in the main control unit.

[0095] In this embodiment, the wired communication module includes a communication interface, which is used to connect to the main control unit via a communication line; step 200 includes:

[0096] Step 210: When it is detected that the communication interface is connected to the main control unit via a communication line, the connection status with the main control unit is determined to be a wired connection.

[0097] Step 220: When it is detected that the communication interface is disconnected from the main control unit, the connection status with the main control unit is determined to be wireless connection.

[0098] In this embodiment of the application, when the communication interface is detected to be disconnected from the main control unit, the wireless communication module is triggered to pair with the wireless communication unit of the main control unit to ensure that when the connection state with the main control unit is wireless, the user operation signal can be sent to the main control unit.

[0099] In this embodiment of the application, when the communication interface is wired to the main control unit based on a communication line, by detecting the connection between the communication interface and the main control unit, it is convenient to quickly determine the specific communication module that sent the user operation signal when the user operation signal is received, thereby ensuring that the main control unit can receive the user operation signal.

[0100] In one specific embodiment, step 420 includes:

[0101] Step 421: When the connection status with the main control unit is wireless, a control signal is generated according to the user operation signal, and the control signal is sent to the main control unit through the wireless communication module.

[0102] In this embodiment, when the connection with the main control unit is wireless, the screen display device generates a control signal based on the user operation signal (when the user operation signal is generated on the touchscreen of the screen display device, the control signal is generated based on the location information of the user operation signal, i.e., the user's intention is determined). This allows the main control unit to determine whether to process the control signal itself (e.g., display a navigation route) or to send the control signal to the corresponding ECU, so that the corresponding ECU can respond to the user's needs, thereby improving the response speed to user needs. It is worth mentioning that each device installed inside the vehicle has its own corresponding ECU, and each ECU is connected to the main control unit. For example, when the connection between the screen display device and the main control unit is wireless, if the user operation signal is to increase the air conditioning temperature, the screen display device first generates a control signal to increase the air conditioning temperature based on the user operation signal, and then sends the control signal to the main control unit. After receiving the control signal, the main control unit sends it to the corresponding ECU for the air conditioning, thereby achieving the purpose of increasing the air conditioning temperature.

[0103] When the connection between the screen display device and the main control unit is wired, the screen display device directly sends the user operation signal to the main control unit. This allows the main control unit to determine the user's intention based on the user operation signal (or, if the user operation signal is generated on the touchscreen of the screen display device, the user's intention is determined based on the location information of the generated signal), and then process the user operation signal accordingly. For example, when the connection between the screen display device and the main control unit is wired, if the user operation signal is to raise the seat, the main control unit, upon receiving the user operation signal, sends it to the corresponding ECU of the seat according to the user's intention, thereby raising the seat.

[0104] In this embodiment, the screen display device can also acquire multimedia control signals. When the connection between the screen display device and the main control unit is wireless, the multimedia control signals acquired by the screen display device are responded to by the screen display device itself, i.e., output by the control module within the screen display device; when the connection between the screen display device and the main control unit is wired, the multimedia control signals acquired by the screen display device are sent to the main control unit, and the main control unit responds to the multimedia control signals.

[0105] In one specific embodiment, the screen display device includes an input module and a signal switching module, and the method further includes:

[0106] Step 510: When it is determined that the connection with the main control unit has switched from disconnection to wired connection via communication line, a first signal switching command is generated and sent to the signal switching module. The wired communication module and the input module are connected through the signal switching module so as to send the user operation signal through the wired communication module.

[0107] Step 520: When it is determined that the connection with the main control unit has switched from wired connection to disconnection via communication line, a second signal switching command is generated and sent to the signal switching module. The signal switching module connects the wireless communication module and the input module so as to send the user operation signal through the wireless communication module.

[0108] Based on the signal switching module, this application embodiment enables the screen display device and the main control unit to autonomously switch signal transmission modes when the connection status changes, ensuring that the main control unit can receive and process user operation signals, thereby fulfilling user needs.

[0109] In one specific embodiment, the method further includes:

[0110] Step 610: When the connection status with the main control unit is wired, the multimedia signal sent by the main control unit is received through the wired communication module and converted, and the conversion result is displayed through the display interface.

[0111] This embodiment of the application receives and converts multimedia signals sent by the main control unit for display, making it convenient for front-seat occupants to adjust the content displayed on the screen without requiring separate operation by rear-seat occupants, thus improving the overall user experience. Furthermore, front-seat occupants can also provide rear-seat occupants with timely access to important trip-related information, such as navigation routes and traffic conditions, allowing occupants to better understand their journey.

[0112] In this specific embodiment, the method further includes:

[0113] Step 620: When the connection status with the main control unit is wired, if it is determined that no user operation signal is obtained within a preset time period, the display content of the main control unit's display interface is obtained based on the wired communication module and displayed synchronously through the display interface.

[0114] The preset duration can be set according to actual conditions / needs. In this embodiment of the application, when there is a wired connection between the screen display device and the main control unit, information sharing between the screen display device and the main control unit enables occupants to obtain driving-related information in real time, such as navigation, media playback status, and vehicle data, thus providing a better riding experience for occupants.

[0115] This application provides a vehicle including a main control unit and a screen display device.

[0116] The screen display device can be configured as multiple devices, and each screen display device has the same structure.

[0117] like Figure 2 As shown, in one example, the vehicle includes four screen display devices (corresponding to...) Figure 2 The example includes displays 1, 2, 3, and 4, each mounted on a separate armrest within the vehicle, and all displays can be removed and used. By supporting multiple virtual controllers (i.e., multiple display devices), this example allows for multi-user gaming, providing a better entertainment experience.

[0118] Since the vehicle includes the screen display device of the aforementioned embodiment, it can also solve the problem of the limitations of the in-vehicle auxiliary screen operated by the in-vehicle personnel, which reduces the operational convenience and overall riding experience of the in-vehicle personnel.

[0119] In this embodiment of the application, a base is also included, on which a communication contact is provided, and a communication interface that cooperates with the communication contact is provided on the screen display device. The communication interface is connected to the communication contact to realize a wired connection between the screen display device and the main control unit.

[0120] This application embodiment establishes a wired link between the screen display device and the main control unit based on the cooperation of the communication contact and the communication interface. This facilitates the control module in quickly determining the specific communication module that sent the user operation signal when it receives the user operation signal, thereby ensuring that the main control unit can receive the user operation signal.

[0121] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0122] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A screen display device, characterized in that, Able to establish a connection with the main control unit, including: A wired communication module is used to provide wired communication between the screen display device and the main control unit; A wireless communication module is used to provide wireless communication between the screen display device and the main control unit; The control module is configured to select either the wired communication module or the wireless communication module to send the user operation signal acquired by the screen display device to the main control unit based on the connection status between the screen display device and the main control unit.

2. The screen display device according to claim 1, characterized in that, The wired communication module includes a communication interface, which is used to connect to the main control unit via a communication line. When the communication interface is wired to the main control unit via a communication line, the control module selects the wired communication module to send the user operation signal; When the communication interface is disconnected from the main control unit, the control module selects the wireless communication module to send the user operation signal.

3. The screen display device according to claim 2, characterized in that, The screen display device can be connected to the base, which is provided with communication contacts and charging contacts. Both the communication contacts and the charging contacts are connected to the main control unit. The screen display device is provided with a communication interface and a charging interface. When either the charging interface or the communication interface is connected to the corresponding contact in the base, the other interface of the charging interface and the other communication interface are connected to the other contact in the base.

4. The screen display device according to claim 3, characterized in that, The screen display device further includes an input module and a signal switching module, wherein the input module is used to acquire the user operation signal; The control module is specifically configured as follows: When it is determined that the communication interface and the main control unit have switched from disconnection to wired connection via communication line, a first signal switching command is generated and sent to the signal switching module. The signal switching module connects the wired communication module and the input module so as to send the user operation signal through the wired communication module. When it is determined that the communication interface and the main control unit have switched from a wired connection via a communication line to a disconnection, a second signal switching command is generated and sent to the signal switching module. The signal switching module connects the wireless communication module and the input module so that the user operation signal can be sent through the wireless communication module.

5. The screen display device according to claim 4, characterized in that, The input module includes a touch screen and a built-in touch chip, and the user operation signals include at least the touch signals of the touch screen.

6. The screen display device according to claim 2, characterized in that, The wired communication module also includes a deserializer, which is used to convert the multimedia signals sent by the main control unit.

7. A control method for a screen display device, characterized in that, Includes the following steps: Obtain the connection status with the main control unit; Based on the connection status with the main control unit, a wired communication module or a wireless communication module is selected to send the acquired user operation signal to the main control unit, including: When the connection status with the main control unit is wired, the user operation signal is sent to the main control unit through the wired communication module; When the connection status with the main control unit is wireless, the user operation signal is sent to the main control unit through the wireless communication module.

8. The control method according to claim 7, characterized in that, The wired communication module includes a communication interface; the step of acquiring the connection status with the main control unit includes: When it is detected that the communication interface is connected to the main control unit via a communication line, the connection status with the main control unit is determined to be a wired connection; When the communication interface is detected to be disconnected from the main control unit, the connection status with the main control unit is determined to be a wireless connection.

9. The control method according to claim 7, characterized in that, When the connection status with the main control unit is wireless, the step of sending the user operation signal to the main control unit through the wireless communication module includes: When the connection status with the main control unit is wireless, a control signal is generated based on the user operation signal, and the control signal is sent to the main control unit through the wireless communication module.

10. The control method according to claim 8, characterized in that, The screen display device includes an input module and a signal switching module; the method further includes: When it is determined that the connection with the main control unit has switched from disconnection to wired connection via communication line, a first signal switching command is generated and sent to the signal switching module. The signal switching module connects the wired communication module and the input module so as to send the user operation signal through the wired communication module. When it is determined that the connection with the main control unit has been switched from wired connection to disconnection via communication line, a second signal switching command is generated and sent to the signal switching module. The signal switching module connects the wireless communication module and the input module so that the user operation signal can be sent through the wireless communication module.

11. The control method according to claim 7, characterized in that, The screen display device has a display interface, and the method further includes: When the connection with the main control unit is a wired connection, the multimedia signal sent by the main control unit is received through the wired communication module and converted, and the conversion result is displayed through the display interface.

12. The control method according to claim 11, characterized in that, The method further includes: When the connection status with the main control unit is wired, if it is determined that no user operation signal is obtained within a preset time period, the display content of the main control unit's display interface is obtained based on the wired communication module and displayed synchronously through the display interface.

13. A vehicle, characterized in that, It includes a main control unit and a screen display device according to any one of claims 1 to 6.

14. The vehicle according to claim 13, characterized in that, It also includes a base, on which communication contacts are provided, and a communication interface that cooperates with the communication contacts is provided on the screen display device. The communication interface is connected to the communication contacts to realize a wired connection between the screen display device and the main control unit.

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