Vehicle ceiling screen control system, vehicle and vehicle ceiling screen control method

Abstract

The invention provides a vehicle ceiling screen control system, a vehicle and a vehicle ceiling screen control method. The vehicle ceiling screen control system comprises a ceiling screen, a rear row screen and a controller. The ceiling screen is installed on the top of the vehicle. And the rear-row screen is mounted behind the front-row seat. The rear row screen is used for sending a touch signal to the controller through the first wire harness, wherein the touch signal is generated based on a touch operation of a user on the rear row screen. The controller is connected with the ceiling screen through the second wire harness and the third wire harness. The controller is used for determining the signal type of the touch signal; under the condition that the signal type is a display type, a signal including display content is sent to the ceiling screen through a second wire harness, and the signal is used for triggering the ceiling screen to display the display content; and under the condition that the signal type is the pose type, a pose control signal is sent to the ceiling screen through a third wire harness, and the pose control signal is used for controlling the pose of the ceiling screen.

Description

Technical Field

[0001] The present disclosure relates to the field of vehicle control technology, and in particular to a vehicle ceiling screen control system, a vehicle, and a control method for a vehicle ceiling screen. Background Art

[0002] Vehicles can improve the convenience of people's travel. As people's demand for intelligent and entertaining cockpits increases, vehicle configurations are constantly improving. In related technologies, a ceiling screen is installed on the top of the vehicle, and users can control the ceiling screen to play film and television entertainment programs or conduct video conference projections by clicking buttons on the ceiling screen. However, since the ceiling screen is located at a high position and a long distance, there are problems such as poor convenience for users to operate the ceiling screen. Summary of the invention

[0003] The present disclosure provides a vehicle ceiling screen control system, a vehicle, and a control method for a vehicle ceiling screen.

[0004] According to a first aspect of the present disclosure, a vehicle ceiling screen control system is provided, which includes: a ceiling screen installed on the top of the vehicle; a rear screen installed behind the front seats, the rear screen being used to send a touch signal to a controller through a first wiring harness, wherein the touch signal is generated based on a user's touch operation on the rear screen; and the controller being connected to the ceiling screen through a second wiring harness and a third wiring harness, respectively, the controller being used to determine a signal type of the touch signal; in a case where the signal type is a display type, a signal including display content is sent to the ceiling screen through the second wiring harness, wherein the signal is used to trigger the ceiling screen to display the display content; in a case where the signal type is a posture type, a posture control signal is sent to the ceiling screen through the third wiring harness, wherein the posture control signal is used to control the posture of the ceiling screen.

[0005] According to at least one embodiment of the present disclosure, the rear screen includes: a first deserializer, connected to the controller through the first wiring harness; and a touch drive device connected to the first deserializer, for collecting the electrical signal generated by the touch operation, parsing the electrical signal to obtain the touch signal, and sending the touch signal to the controller through the first deserializer via the first wiring harness.

[0006] According to at least one embodiment of the present disclosure, the controller includes: a serializer, connected to the first deserializer through the first wiring harness, and connected to the ceiling screen through the second wiring harness; a first micro control unit, connected to the ceiling screen through the third wiring harness; and a system-level chip connected to the serializer and the first micro control unit, respectively, for determining the signal type of the touch signal when the touch signal is received through the serializer; when the signal type is a display type, sending the signal including the display content to the ceiling screen through the serializer via the second wiring harness; when the signal type is a posture type, sending the posture control signal to the ceiling screen through the first micro control unit via the third wiring harness.

[0007] According to at least one embodiment of the present disclosure, the ceiling screen includes: a display module for displaying the display content; a second deserializer connected to the display module, the second deserializer is also connected to the serializer through the second wiring harness, and the second deserializer is used to send the display content to the display module when the signal including the display content is received through the second wiring harness; a second microcontroller unit, the second microcontroller unit is connected to the first microcontroller unit through the third wiring harness, and the second microcontroller unit is used to generate a drive signal according to the posture control signal when the posture control signal is received through the third wiring harness; and a motor drive module connected to the second microcontroller unit, and is used to drive the motor module based on the drive signal to adjust the posture of the ceiling screen when the drive signal sent by the second microcontroller unit is received.

[0008] According to at least one embodiment of the present disclosure, the first wiring harness and the second wiring harness are LVDS lines respectively, and the third wiring harness is a CAN line.

[0009] According to at least one embodiment of the present disclosure, a camera is installed on the rear screen, and the camera is used to take pictures of the rear seats to obtain image data, and transmit the image data to the controller through the first wiring harness; the ceiling screen includes a motor drive module and a motor module, and the motor drive module is used to drive the motor module to adjust the posture of the ceiling screen; the controller is also used to perform person recognition on the image data, and when a person is recognized, perform one or more of the following steps: sending a first control instruction to the rear screen through the first wiring harness, wherein the first control instruction is used to trigger the rear screen to display a control for controlling the ceiling screen; sending a second control instruction to the ceiling screen through the third wiring harness, wherein the second control instruction is used to trigger the motor drive module to adjust the ceiling screen to a first posture through the motor module; and sending a third control instruction to the ceiling screen through the second wiring harness, wherein the third control instruction is used to trigger the ceiling screen to display a first picture.

[0010] According to at least one embodiment of the present disclosure, the motor drive module includes a first motor drive device, the motor module includes a first motor, the first motor drive device is used to drive the first motor so that the ceiling screen moves along the width direction of the vehicle; when the number of the characters is one, the second control instruction is used to trigger the first motor drive device to drive the first motor so that the ceiling screen moves to the front of the character; and when the number of the characters is multiple, the second control instruction is used to trigger the first motor drive device to drive the first motor so that the ceiling screen moves to the center position of the vehicle width.

[0011] According to at least one embodiment of the present disclosure, the motor drive module includes a second motor drive device, the motor module includes a second motor, the second motor drive device is used to drive the second motor so that the ceiling screen pitches and rotates around the vehicle width direction, and the second control instruction is used to trigger the second motor drive device to drive the second motor so that the ceiling screen rotates to a first angle.

[0012] According to at least one embodiment of the present disclosure, a camera is installed on the rear screen, and the camera is used to photograph the rear seats to obtain image data, and transmit the image data to the controller through the first wiring harness; the controller is also used to: determine the user posture by performing posture recognition on the image data; determine the screen display direction corresponding to the user posture based on a mapping relationship between a preset posture and a preset screen display direction; and send a fourth control instruction to the ceiling screen through the second wiring harness, wherein the fourth control instruction is used to trigger the ceiling screen to display the picture in the picture display direction.

[0013] According to at least one embodiment of the present disclosure, the controller is also used to: receive the execution result sent by the ceiling screen through the second wiring harness or the third wiring harness; and send a fifth control instruction to the rear screen through the first wiring harness, wherein the fifth control instruction is used to trigger the rear screen to prompt the execution result.

[0014] According to a second aspect of the present disclosure, a vehicle is provided, comprising a vehicle ceiling screen control system as described in any one of the above embodiments.

[0015] According to a third aspect of the present disclosure, a control method for a vehicle ceiling screen is provided, wherein the ceiling screen is installed on the top of the vehicle, and the control method comprises: receiving a touch signal from a rear screen of the vehicle through a first wiring harness, wherein the rear screen is installed behind the front seats, and the touch signal is generated based on a user's touch of the rear screen; determining a signal type of the touch signal, wherein the signal type comprises a display type and a posture type; and selecting a communication wiring harness according to the signal type to send a signal to the ceiling screen, wherein when the signal type is the display type, a signal including display content is sent to the ceiling screen through a second wiring harness, and the signal is used to trigger the ceiling screen to display the display content; and when the signal type is the posture type, a posture control signal is sent to the ceiling screen through a third wiring harness, and the posture control signal is used to control the posture of the ceiling screen.

[0016] In the above-mentioned vehicle ceiling screen control system, vehicle and vehicle ceiling screen control method, the touch signal generated by the user's touch operation on the rear screen can be received through the first wiring harness, and when the signal type of the touch signal is a display type, the signal including the display content is sent to the ceiling screen through the second wiring harness, and when the signal type of the touch signal is a posture type, the posture control signal is sent to the ceiling screen through the third wiring harness, thereby realizing the control of the ceiling screen on the rear screen. Compared with the ceiling screen, the installation position of the rear screen is lower and closer to the user, so the control convenience of the ceiling screen can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings illustrate exemplary embodiments of the present disclosure and together with the description serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0018] Figure 1 It is a schematic diagram of an application scenario of a vehicle ceiling screen control system according to an embodiment of the present disclosure.

[0019] Figure 2It is a structural schematic block diagram of a vehicle ceiling screen control system according to an embodiment of the present disclosure.

[0020] Figure 3 This is a visualization example diagram of controls displayed on the rear screen according to an embodiment of the present disclosure.

[0021] Figure 4 This is a visualization example diagram of the display direction of a ceiling screen according to an embodiment of the present disclosure.

[0022] Figure 5 This is a visualization example diagram of the display direction of the ceiling screen according to another embodiment of the present disclosure.

[0023] Figure 6 It is a flow chart of a method for controlling a vehicle ceiling screen according to an embodiment of the present disclosure.

[0024] Figure 7 It is a flow chart of a method for controlling a vehicle ceiling screen according to another embodiment of the present disclosure.

[0025] Figure 8 It is a flow chart of a method for controlling a vehicle ceiling screen according to another embodiment of the present disclosure.

[0026] Fig. 9 It is a flowchart of a method for controlling a vehicle ceiling screen according to yet another embodiment of the present disclosure.

[0027] Description of reference numerals: Vehicle ceiling screen control system 1000, rear screen 100, ceiling screen 200, controller 300, first wiring harness 400, second wiring harness 500, third wiring harness 600, direction selection control 11, confirmation selection control 12, ceiling screen switch control 13, ceiling screen tilt adjustment control 14, mute control 15, volume adjustment control 16, vehicle 2000. DETAILED DESCRIPTION

[0028] The present disclosure is further described in detail below in conjunction with the accompanying drawings and examples. It is understood that the specific examples described herein are only used to explain the relevant content, rather than to limit the present disclosure. It should also be noted that, for ease of description, only the parts related to the present disclosure are shown in the accompanying drawings.

[0029] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in the present disclosure can be combined with each other. The technical solution of the present disclosure will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] More and more medium and large SUVs (Sport Utility Vehicle) and MPVs (Multi-Purpose Vehicle) are equipped with ceiling screens on the top of the vehicle to meet the needs of users for watching film and television entertainment programs and video conferencing projection. In the related technology, users need to click buttons on the ceiling screen to operate the ceiling screen. However, the installation position of the ceiling screen is usually high and far away from the user. If the user is sitting in a seat, he may not be able to touch the buttons on the ceiling screen. In other words, the user may need to stand up to touch the buttons on the ceiling screen, which will result in poor convenience in operating the ceiling screen and it is difficult to ensure user safety during vehicle driving.

[0031] In order to improve the convenience of controlling the ceiling screen, the applicant found in the research that controlling the ceiling screen through an additionally designed separate remote control can improve the convenience of control, but the remote control requires additional costs, and the wireless remote control may have the problem of unresponsiveness; controlling the ceiling screen through in-car voice recognition can improve the convenience of control, but it is limited by the reaction speed and accuracy of voice recognition, and there may be problems of unresponsiveness and low control accuracy; controlling the ceiling screen through mobile phone Bluetooth can improve the convenience of the control process, but the mobile phone needs to install the corresponding control program in advance. If the control program is not installed, the ceiling screen cannot be controlled, and the Bluetooth transmission data may be interfered by the environment, resulting in unresponsiveness. In other words, wireless control has the problem of unresponsiveness, and wired control should be used to control the ceiling screen. Considering that the vehicle is equipped with a rear screen in addition to a ceiling screen, and the rear screen and the ceiling screen can be connected to the vehicle's controller via wiring harnesses, respectively, in the present disclosure, the rear screen is connected to the vehicle's controller via a first wiring harness, and the ceiling screen is connected to the vehicle's controller via a second wiring harness and a third wiring harness, respectively, so that the user can perform touch operations on the rear screen, and the controller analyzes the touch signal generated based on the touch operation to generate a signal including display content or a posture control signal, and sends the signal including display content to the ceiling screen via the second wiring harness, and sends the posture control signal to the ceiling screen via the third wiring harness, thereby realizing the control of the ceiling screen on the rear screen and improving the control convenience and responsiveness. To this end, the following technical solution is proposed in the present disclosure.

[0032] In the present disclosure, vehicles include but are not limited to pure electric vehicles, hybrid electric vehicles, extended-range electric vehicles, fuel vehicles, etc. A vehicle may include multiple domain controllers and a vehicle controller connected by a bus, and the vehicle controller may be used as the vehicle controller. Alternatively, a vehicle controller may not be provided, and one of the multiple domain controllers may be used as the vehicle controller. For example, a cockpit domain controller may be used as the vehicle controller.

[0033] Figure 1 The schematic diagram of the application scenario of a vehicle according to an embodiment of the present disclosure is shown. In this scenario, the vehicle ceiling screen control system 1000 is installed in the vehicle 2000, and the vehicle ceiling screen control system 1000 includes a rear screen 100, a ceiling screen 200 and a controller 300. The rear screen 100 is installed behind the front seats (not shown in the figure), the ceiling screen 200 is installed on the top of the vehicle 2000, and the controller 300 is installed at the bottom of the front seats. The rear screen 100 is connected to the controller 300 through the first wire harness 400, and the ceiling screen 200 is connected to the controller 300 through the second wire harness 500 and the third wire harness 600, respectively, so that the user sitting in the back row can control the ceiling screen 200 through the rear screen 100. The controller 300 may include at least one processor and at least one memory.

[0034] For the convenience of description and to make the technical solutions of the specific embodiments of the present disclosure easier to understand, before describing the vehicle implemented by the present disclosure, the technical terms involved in the specific embodiments of the present disclosure are explained as follows: Ceiling screen: A screen installed on the top of a vehicle that can be used to provide multimedia entertainment content such as videos, movies, music, and display information.

[0035] Rear screen: A screen located behind the front seats of the vehicle that can be used to provide multimedia entertainment content such as videos, movies, music, and display information.

[0036] LVDS (Low-Voltage Differential Signaling) technology: is a differential signal technology with low power consumption, low bit error rate, low crosstalk and low radiation. LVDS line refers to the connection line using LVDS technology.

[0037] CAN (Controller Area Network): is a serial communication protocol for real-time applications. CAN lines refer to the physical connection lines used to implement the CAN communication protocol. They can use twisted pair cables to transmit signals and are used for communication between various components in the car, replacing expensive and bulky distribution harnesses.

[0038] Deserializer / Serializer: It is an interface circuit in high-speed data communication and plays an important role in short-distance chip interconnection.

[0039] MCU (Microcontroller Unit) is a microcontroller that reduces the frequency and specifications of the CPU (Central Processing Unit) appropriately, and integrates peripheral interfaces such as memory, counter, USB (Universal Serial Bus), A / D (Analog-to-Digital) conversion, UART (Universal Asynchronous Receiver / Transmitter), PLC (Programmable Logic Controller), DMA (Direct Memory Access), and even LCD (Liquid Crystal Display) drive circuits on a single chip to form a chip-level computer, which can perform different combination controls for different applications.

[0040] SOC (System on Chip): It consists of control logic module, microprocessor / microcontroller core module, digital touch drive module, embedded memory module, interface module for external communication, analog front-end module containing analog-to-digital converter and / or digital-to-analog converter, power supply and power management module, etc. The integration of SOC is higher than that of MCU.

[0041] HMI (Human Machine Interface): also known as user interface or user interface, is the medium for interaction and information exchange between the system and the user. It realizes the conversion between the internal form of information and the form acceptable to humans.

[0042] I2C (Inter-Integrated Cicuit): is a serial communication bus that uses a multi-master-slave architecture.

[0043] SPI (Serial Peripheral Interface): It is a synchronous peripheral interface that enables the microcontroller to communicate with various peripheral devices in a serial manner to exchange information. Peripheral devices include Flash RAM, network controller, LCD display driver, A / D converter and MCU.

[0044] PWM (Pulse Width Modulation): It is an analog control method that modulates the bias of the transistor base or MOS tube gate according to the change of the corresponding load to achieve the change of the transistor or MOS tube conduction time, thereby achieving the change of the output of the switching regulated power supply.

[0045] eDP (Embedded DisplayPort) protocol: It is a standard protocol in the field of digital display technology. It has high bandwidth, good integration, and simple design of related products. This interface has been widely used in notebook computers, tablet computers, mobile phones and other fields with integrated display panels and image processors.

[0046] like Figure 1 As shown, a vehicle ceiling screen control system 1000 provided by one embodiment of the present disclosure includes a rear screen 100 , a ceiling screen 200 , a controller 300 , a first wire harness 400 , a second wire harness 500 and a third wire harness 600 .

[0047] The ceiling screen 200 is installed on the top of the vehicle.

[0048] The rear screen 100 is installed behind the front seats, for example, on the backrest of the front seats, or on the rear seat armrest behind the front seats, or on the rear door handle behind the front seats. The rear screen 100 is used to send a touch signal to the controller 300 through the first wire harness 400, wherein the touch signal is generated based on the user's touch operation on the rear screen 100. The touch operation includes but is not limited to clicking, double-clicking, long pressing, sliding, etc.

[0049] The controller 300 can be installed at the bottom of the seat or the bottom of the auxiliary instrument panel. The controller 300 is connected to the ceiling screen 200 through the second wire harness 500 and the third wire harness 600 respectively. The controller 300 is used to determine the signal type of the touch signal; when the signal type is the display type, the signal including the display content is sent to the ceiling screen 200 through the second wire harness 500, wherein the signal is used to trigger the ceiling screen 200 to display the display content; when the signal type is the posture type, the posture control signal is sent to the ceiling screen 200 through the third wire harness 600, wherein the posture control signal is used to control the posture of the ceiling screen 200. Further, the display type touch signal is a touch signal for adjusting the display content of the ceiling screen 200. When the controller 300 receives the display type touch signal, it can automatically process and analyze the touch signal, and then determine the display content to be played corresponding to the touch signal, and generate a signal including the display content. The touch signal of posture type is a touch signal for adjusting the posture of the ceiling screen 200. When the controller 300 receives the touch signal of posture type, it can automatically process and analyze the touch signal, and then determine the posture control requirement corresponding to the touch signal, and generate a posture control signal. The posture includes but is not limited to the position and angle.

[0050] In the vehicle ceiling screen control system 1000 of the embodiment of the present disclosure, users sitting in the back seats can control the ceiling screen 200 through the rear screen 100. Since the installation position of the rear screen 100 is lower and closer to the user than the ceiling screen 200, the control convenience is higher. At the same time, compared with the wireless communication method, the present disclosure adopts the wired communication method to transmit signals and commands, which improves the anti-interference ability, is more sensitive to response, has better adaptability, reliable control, and high precision. In addition, in the present disclosure, the second wiring harness 500 and the third wiring harness 600 are respectively used to transmit different types of signals, which can effectively avoid signal interference and improve the stability and reliability of the vehicle ceiling screen control system 1000.

[0051] Please combine Figure 2 As a further embodiment, the rear screen 100 may include a first deserializer and a touch driving device connected to the first deserializer. The first deserializer is also connected to the controller 300 through the first wire harness 400. The touch driving device is used to collect the electrical signal generated by the user performing a touch operation on the rear screen 100, analyze the electrical signal, obtain the touch signal, and send the touch signal to the controller 300 through the first deserializer via the first wire harness 400. In this way, the rear screen 100 can efficiently and reliably transmit the touch signal to the controller 300.

[0052] Exemplarily, the touch driving device can send the touch signal to the first deserializer based on the I2C protocol. The first deserializer can encode and compress the touch signal and send the encoded and compressed touch signal to the controller 300 through the first wiring harness 400, thereby improving transmission efficiency.

[0053] Continue to combine Figure 2 As a further embodiment, the controller 300 may include a serializer, a first micro control unit (i.e. Figure 2 The first MCU) and system-level chip (i.e. Figure 2 In the SOC, the system-level chip is connected to the serializer and the first microcontroller unit respectively. Among them, the serializer is also connected to the first deserializer of the rear screen 100 through the first wiring harness 400, and is connected to the ceiling screen 200 through the second wiring harness 500. The first microcontroller unit is also connected to the ceiling screen 200 through the third wiring harness 600. The system-level chip is used to determine the signal type of the touch signal when a touch signal is received through the serializer; when the signal type is a display type, the signal including the display content is sent to the ceiling screen 200 through the serializer via the second wiring harness 500; when the signal type is a posture type, the posture control signal is sent to the ceiling screen 200 through the first microcontroller unit via the third wiring harness 600. In this way, the controller 300 can accurately generate a signal including the display content or a posture control signal based on the touch signal, and transmit the generated signal to the ceiling screen 200 efficiently and reliably.

[0054] Exemplarily, the serializer can decode and decompress the touch signal after encoding and compression sent by the first deserializer, thereby obtaining the original touch signal before encoding and compression, and sending the touch signal to the system-level chip based on the I2C protocol, thereby ensuring that the system-level chip can accurately respond to the user's touch operation. When the system-level chip receives a touch signal of a display type, it can automatically process and analyze the touch signal, and then determine the display content that needs to be played corresponding to the touch signal, and generate a signal including the display content. In addition, the system-level chip can also generate an I2C signal including the control parameters (such as brightness, contrast, etc.) required for displaying the display content. The signal including the display content and the I2C signal including the control parameters can then be returned to the serializer for compression and encoding operations, and then sent to the ceiling screen 200 through the second harness 500, thereby improving transmission efficiency. When the system-level chip receives a touch signal of a posture type, it can automatically process and analyze the touch signal, and then determine the posture control requirements corresponding to the touch signal, and generate a posture control signal. The posture control signal is transmitted to the first micro control unit via the SPI interface, and can be encoded and compressed by the first micro control unit and sent to the ceiling screen 200 via the third wiring harness 600, thereby improving transmission efficiency.

[0055] Continue to combine Figure 2 As a further implementation, the ceiling screen 200 may include a display module, a second deserializer, a second micro control unit (i.e. Figure 2 The second MCU in the controller 300), the motor drive module and the motor module, wherein the second deserializer is connected to the display module, and the motor drive module is respectively connected to the second micro control unit and the motor module. The display module is used to display the display content. The second deserializer is also connected to the serializer of the controller 300 through the second wiring harness 500, and the second deserializer is used to send the display content to the display module when a signal including the display content is received through the second wiring harness 500. The second micro control unit is also connected to the first micro control unit of the controller 300 through the third wiring harness 600, and the second micro control unit is used to generate a drive signal according to the posture control signal when a posture control signal is received through the third wiring harness 600. The motor drive module is used to drive the motor module based on the drive signal to adjust the posture of the ceiling screen 200 when receiving the drive signal sent by the second micro control unit. In this way, the ceiling screen 200 can accurately respond to the user's touch operation on the rear screen 100, meeting the user's use requirements for the ceiling screen 200.

[0056] Exemplarily, the second microcontroller unit can decode the encoded and compressed posture control signal sent by the first microcontroller unit, thereby obtaining the original posture control signal before encoding and compression, and converting the posture control signal into a PWM drive signal, and transmitting the PWM drive signal to the motor drive module, so that the motor drive module controls the rotation direction and speed of the motor module, thereby adjusting the posture of the ceiling screen 200. The second deserializer can decode and optimize the encoded and compressed signal sent by the serializer to obtain the display content, and then transmit the display content to the display module through the eDP protocol, so that the display content can be displayed.

[0057] In one example, the first wire harness 400 and the second wire harness 500 are LVDS lines, respectively, and the third wire harness 600 is a CAN line. In this way, the display-related signals can be transmitted efficiently and with low power consumption through the LVDS line, and the posture-related signals can be transmitted in real time and stably through the CAN line. Moreover, the two types of signals are transmitted using different wire harnesses, which can effectively avoid signal interference and improve the stability and reliability of the vehicle ceiling screen control system 1000.

[0058] In some embodiments, a camera is installed on the rear screen 100, and the camera is used to take pictures of the rear seats to obtain image data, and transmit the image data to the controller 300 through the first wiring harness 400. The ceiling screen 200 includes a motor drive module and a motor module, and the motor drive module is used to drive the motor module to adjust the posture of the ceiling screen 200. Accordingly, the controller 300 is also used to perform character recognition on the image data, and when a person is recognized to appear, execute one or more of the following steps S101, S102 and S103. In this way, the controller 300 can monitor the seating situation of the rear seats, and when a person appears, promptly control the rear screen 100 and / or the ceiling screen 200 to provide services for the person, thereby improving the intelligence and convenience of the vehicle ceiling screen control system 1000.

[0059] It is understandable that before using the technical solutions disclosed in the embodiments of the present disclosure, the type, scope of use, usage scenarios, etc. of the personal information involved in the present disclosure should be informed to the user and the user's authorization should be obtained in an appropriate manner in accordance with relevant laws and regulations.

[0060] For example, in response to receiving an active request from a user, a prompt message is sent to the user to clearly prompt the user that the operation requested to be performed will require obtaining and using the user's personal information. Thus, the user can autonomously choose whether to provide personal information to software or hardware such as an electronic device, application, server, or storage medium that performs the operation of the technical solution of the present disclosure according to the prompt message.

[0061] As an optional but non-limiting implementation, in response to receiving an active request from the user, the prompt information may be sent to the user in the form of a pop-up window, in which the prompt information may be presented in text form. In addition, the pop-up window may also carry a selection control for the user to choose "agree" or "disagree" to provide personal information to the electronic device.

[0062] It is understandable that the above notification and the process of obtaining user authorization are merely illustrative and do not constitute a limitation on the implementation of the present disclosure. Other methods that meet the relevant laws and regulations may also be applied to the implementation of the present disclosure.

[0063] At the same time, it is understandable that the data involved in the technical solution of the present disclosure (including but not limited to the data itself, the acquisition or use of the data) shall comply with the requirements of relevant laws, regulations and relevant provisions.

[0064] Step S101: Sending a first control instruction to the rear screen via a first wiring harness, wherein the first control instruction is used to trigger the rear screen to display a control for controlling the ceiling screen. In this way, when the controller recognizes that there is a person in the rear seat, it can promptly control the rear screen to display a control for controlling the ceiling screen, thereby facilitating the user to directly control the ceiling screen via the rear screen, thereby improving the intelligence and convenience of the vehicle.

[0065] For example, the first control instruction may be an instruction that is pre-stored and can be acquired by the controller. Figure 3 In one example, the controls displayed on the rear screen include a direction selection control 11, a confirmation selection control 12, a ceiling screen switch control 13, a ceiling screen tilt adjustment control 14, a mute control 15 and a volume adjustment control 16. Touching the direction selection control 11 can control the cursor displayed on the ceiling screen to move up, down, left and right; touching the confirmation selection control 12 can control the ceiling screen to open the application or film and television music represented by the cursor resting position; touching the ceiling screen switch control 13 can turn on the ceiling screen and display the initial interface or screen to shut down and lock the ceiling screen; touching the ceiling screen tilt adjustment control 14 can control the motor module in the ceiling screen to increase or decrease the angle of the ceiling screen, so as to facilitate the user to adjust the ceiling screen to a viewing angle that meets the user's needs; touching the mute control 15 can achieve one-click mute; touching the volume adjustment control 16 can change the playback volume of the film and television music, so as to facilitate the user to adjust the volume of the film and television music to a volume that meets the user's needs. The touch signal sent by the rear screen may include the touch position of the user on the rear screen, and then the controller can determine the touched control corresponding to the touch position based on the correspondence between the position and the control, and generate a signal including display content and / or a posture control signal corresponding to the touched control, and send the signal including display content and / or the posture control signal to the ceiling screen, thereby realizing control of the ceiling screen.

[0066] In other embodiments, by installing corresponding applications / software in the existing rear screen of the vehicle, the rear screen can present a control interface for the ceiling screen based on user operations (such as clicking a preset button, opening a specific application or voice wake-up, etc.), and the control interface can display controls for controlling the ceiling screen.

[0067] Step S102: Send the second control instruction to the ceiling screen through the third wiring harness, wherein the second control instruction is used to trigger the motor drive module to adjust the ceiling screen to the first posture through the motor module. In this way, when the controller recognizes that there is a person in the rear seat, it can promptly control the ceiling screen to adjust to the first posture, thereby completing the preparation work in time, facilitating the user to use it quickly, and improving the intelligence and convenience of the vehicle.

[0068] The signal type of the second control instruction is the posture type. The second control instruction may be a default setting instruction, and the first posture may be a default posture, such as the factory setting posture or the posture of the ceiling screen before the last shutdown; the second control instruction may also be a user-preset instruction, and the first posture may be a user-set posture; the second control instruction may also be an instruction automatically generated by the controller based on the user's historical usage habits, and the first posture may be the user's historical preferred posture, which is not limited here. As a possible implementation mode, the motor drive module includes a first motor drive device, the motor module includes a first motor, the first motor drive device is used to drive the first motor to move the ceiling screen along the width direction of the vehicle. Accordingly, when there is only one person, the second control instruction is used to trigger the first motor drive device to drive the first motor to move the ceiling screen to the front of the person, that is, the position in the first posture is the front of the person, so that no matter whether the person sits on the left, in the middle or on the right, the ceiling screen can automatically move to the front of the person after the person sits down, so as to facilitate the person to watch the ceiling screen; when there are multiple people, the second control instruction is used to trigger the first motor drive device to drive the first motor to move the ceiling screen to the center position of the vehicle width, that is, the position in the first posture is the center position of the vehicle width, so that when multiple people are seated, the ceiling screen can automatically move to the center position, so as to facilitate multiple people to watch the ceiling screen together. As another possible implementation, the motor drive module includes a second motor drive device, the motor module includes a second motor, the second motor drive device is used to drive the second motor to make the ceiling screen pitch and rotate with the vehicle width direction as the axis, and accordingly, the second control instruction is used to trigger the second motor drive device to drive the second motor to make the ceiling screen rotate to the first angle, that is, the angle in the first posture is the first angle, so that it is convenient for users to watch the ceiling screen. The first angle can be a default angle, a user preset angle, a user preferred angle, the angle of the ceiling screen before the last shutdown, etc., which is not limited here.

[0069] Step S103: Sending a third control instruction to the ceiling screen through the second wiring harness, wherein the third control instruction is used to trigger the ceiling screen to display the first picture. In this way, when the controller recognizes that there is a person in the rear seat, it can promptly control the ceiling screen to display the first picture, thereby facilitating the user to watch the ceiling screen, thereby improving the intelligence and convenience of the vehicle.

[0070] The signal type of the third control instruction is the display type. The third control instruction may be a default setting instruction, and the first screen may be a default screen, such as a startup screen or a screen displayed on the ceiling screen before the last shutdown; the third control instruction may also be a user-preset instruction, and the first screen may be a user-set screen; the third control instruction may also be an instruction automatically generated by the controller based on the user's historical usage habits, and the first screen may be a user-preferred screen, which is not limited here.

[0071] In some embodiments, a camera is installed on the rear screen, and the camera is used to capture the rear seats to obtain image data, and transmit the image data to the controller through the first wiring harness. Accordingly, the controller is also used to: determine the user posture by performing posture recognition on the image data; determine the screen display direction corresponding to the user posture based on the mapping relationship between the preset posture and the preset screen display direction; and send a fourth control instruction to the ceiling screen through the second wiring harness, wherein the fourth control instruction is used to trigger the ceiling screen to display the screen in the screen display direction. In this way, the screen display direction of the ceiling screen can be automatically adjusted according to the user posture, so that the user can easily watch the screen displayed on the ceiling screen in different postures.

[0072] Exemplarily, the preset postures include sitting, left-lying and right-lying. In the mapping relationship, the preset screen display direction corresponding to the sitting posture is the longitudinal display direction from the top of the ceiling screen to the bottom of the ceiling screen, the preset screen display direction corresponding to the left-lying posture is the transverse display direction from the left end of the ceiling screen to the right end of the ceiling screen, and the preset screen display direction corresponding to the right-lying posture is the transverse display direction from the right end of the ceiling screen to the left end of the ceiling screen. That is to say, if it is detected that the user posture changes from a sitting posture to a left-lying posture, the control system can automatically send a fourth control instruction to control the screen display direction of the ceiling screen to switch from the longitudinal direction to the transverse display direction from the left end of the ceiling screen to the right end of the ceiling screen, such as Figure 4 If it is detected that the user's posture changes from a sitting position to a right lying position, the control system can automatically send a fourth control instruction to control the display direction of the ceiling screen to switch from a vertical direction to a horizontal direction from the right end of the ceiling screen to the left end of the ceiling screen, such as Figure 5 The signal type of the fourth control instruction is a display type. Figure 4 and Figure 5 The content displayed on the middle ceiling screen 200 is for illustration only.

[0073] In some embodiments, the controller is also used to: receive the execution result sent by the ceiling screen through the second wiring harness or the third wiring harness; and send a fifth control instruction to the rear screen through the first wiring harness, wherein the fifth control instruction is used to trigger the rear screen to prompt the execution result. In this way, in addition to mainly sending instructions or signals, the controller can also receive the execution results fed back by the motor drive module, motor module, display module and other components of the ceiling screen in real time, and control the rear screen to prompt the execution result, so as to facilitate the user to understand the execution status of the ceiling screen. The execution results include but are not limited to display abnormalities, motor rotation angle not in place, etc.

[0074] According to a further embodiment of the present disclosure, a vehicle is also provided. The vehicle may include a vehicle ceiling screen control system as described in any of the above embodiments.

[0075] According to a further embodiment of the present disclosure, a control method for a vehicle ceiling screen is also provided. Figure 6 The schematic diagram of the control method of the vehicle ceiling screen according to the present disclosure is shown. The ceiling screen is installed on the top of the vehicle. Figure 6 As shown, the control method M600 of the vehicle ceiling screen may include steps S601 to S603.

[0076] Step S601: receiving a touch signal from a rear screen of a vehicle through a first wiring harness, wherein the rear screen is installed behind the front seats, and the touch signal is generated based on a user's touch on the rear screen.

[0077] Step S602: Determine the signal type of the touch signal, where the signal type includes a display type and a posture type.

[0078] Step S603: Select a communication harness according to the signal type, and send a signal to the ceiling screen. When the signal type is a display type, a signal including display content is sent to the ceiling screen through the second harness, and the signal is used to trigger the ceiling screen to display the display content. When the signal type is a posture type, a posture control signal is sent to the ceiling screen through the third harness, and the posture control signal is used to control the posture of the ceiling screen.

[0079] In some embodiments, a camera is installed on the rear screen, and the camera is used to take pictures of the rear seats to obtain image data, and transmit the image data to the controller through the first wiring harness; the ceiling screen includes a motor drive module and a motor module, and the motor drive module is used to drive the motor module to adjust the posture of the ceiling screen. Figure 7Before step S601, the control method M600 of the vehicle ceiling screen may also include: step S604, receiving image data from the rear screen through the first wiring harness; step S605, performing character recognition on the image data; step S606, when a person is recognized, sending a first control instruction to the rear screen through the first wiring harness, wherein the first control instruction is used to trigger the rear screen to display a control for controlling the ceiling screen; step S607, when a person is recognized, sending a second control instruction to the ceiling screen through the third wiring harness, wherein the second control instruction is used to trigger the motor drive module to adjust the ceiling screen to the first posture through the motor module; and step S608, when a person is recognized, sending a third control instruction to the ceiling screen through the second wiring harness, wherein the third control instruction is used to trigger the ceiling screen to display the first picture.

[0080] In some embodiments, a camera is installed on the rear screen, and the camera is used to take pictures of the rear seats to obtain image data, and transmit the image data to the controller through the first wire harness. Figure 8 After step S603, the control method M600 of the vehicle ceiling screen may also include: step S609, determining the user posture by performing posture recognition on the image data; step S610, determining the screen display direction corresponding to the user posture based on the mapping relationship between the preset posture and the preset screen display direction; and step S611, sending the fourth control instruction to the ceiling screen through the second wiring harness, wherein the fourth control instruction is used to trigger the ceiling screen to display the picture in the picture display direction.

[0081] Please combine Fig. 9 In some embodiments, after step S603, the control method M600 of the vehicle ceiling screen may also include: step S612, receiving the execution result sent by the ceiling screen through the second wiring harness or the third wiring harness; and step S613, sending the fifth control instruction to the rear screen through the first wiring harness, wherein the fifth control instruction is used to trigger the rear screen to prompt the execution result.

[0082] For contents related to the control method of the vehicle ceiling screen, please refer to the above description, which will not be repeated here for the sake of brevity.

[0083] In the description of this specification, the description with reference to the terms "one embodiment / method", "some embodiments / methods", "example", "specific example", or "some examples" etc. means that the specific features, structures, or characteristics described in conjunction with the embodiment / method or example are included in at least one embodiment / method or example of the present disclosure. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment / method or example. Moreover, the specific features, structures, or characteristics described may be combined in any one or more embodiments / methods or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments / methods or examples described in this specification and features of different embodiments / methods or examples, unless they are contradictory.

[0084] In the description of the present disclosure, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present disclosure. In addition, the terms "first" and "second" are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present disclosure, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0085] In the description of the present disclosure, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to the specific circumstances.

[0086] In the present disclosure, unless otherwise expressly specified and limited, a first feature being “above” or “below” a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being “above”, “above”, and “above” a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0087] The disclosure of this article provides many different embodiments or examples to realize different structures of the present disclosure. In order to simplify the disclosure of the present disclosure, the components and settings of specific examples are described herein. Of course, they are only examples, and the purpose is not to limit the present disclosure. In addition, the present disclosure may repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present disclosure provides various specific examples of processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0088] Those skilled in the art should understand that the above embodiments are only for the purpose of clearly illustrating the present disclosure, and are not intended to limit the scope of the present disclosure. For those skilled in the art, other changes or modifications may be made based on the above disclosure, and these changes or modifications are still within the scope of the present disclosure.

Claims

1. A vehicle ceiling screen control system, characterized in that: include: Ceiling screen, installed on the top of the vehicle; A rear screen installed behind the front seats, the rear screen is used to send a touch signal to the controller through a first wiring harness, wherein the touch signal is generated based on a user's touch operation on the rear screen; as well as The controller is connected to the ceiling screen through a second wiring harness and a third wiring harness, respectively, and the controller is used to determine the signal type of the touch signal; when the signal type is a display type, a signal including display content is sent to the ceiling screen through the second wiring harness, wherein the signal is used to trigger the ceiling screen to display the display content; when the signal type is a posture type, a posture control signal is sent to the ceiling screen through the third wiring harness, wherein the posture control signal is used to control the posture of the ceiling screen.

2. According to claim 1, the vehicle ceiling screen control system is characterized in that: The rear screen comprises: a first deserializer connected to the controller via the first wiring harness; and The touch driving device connected to the first deserializer is used to collect the electrical signal generated by the touch operation, analyze the electrical signal to obtain the touch signal, and send the touch signal to the controller through the first deserializer via the first wiring harness.

3. According to claim 2, the vehicle ceiling screen control system is characterized in that: The controller comprises: a serializer, connected to the first deserializer through the first wiring harness, and connected to the ceiling screen through the second wiring harness; A first micro control unit connected to the ceiling screen via the third wiring harness; and The system-level chip connected to the serializer and the first microcontroller respectively is used to determine the signal type of the touch signal when the touch signal is received through the serializer; when the signal type is a display type, the signal including the display content is sent to the ceiling screen through the serializer via the second wiring harness; when the signal type is a posture type, the posture control signal is sent to the ceiling screen through the first microcontroller via the third wiring harness.

4. According to claim 3, the vehicle ceiling screen control system is characterized in that: The ceiling screen comprises: A display module, used to display the display content; a second deserializer connected to the display module, the second deserializer further connected to the serializer via the second wiring harness, the second deserializer being configured to send the display content to the display module when receiving the signal including the display content via the second wiring harness; a second micro control unit, the second micro control unit being connected to the first micro control unit through the third wire harness, the second micro control unit being configured to generate a drive signal according to the posture control signal when the posture control signal is received through the third wire harness; and The motor driving module connected to the second micro control unit is used to drive the motor module based on the driving signal to adjust the posture of the ceiling screen when receiving the driving signal sent by the second micro control unit.

5. According to claim 1, the vehicle ceiling screen control system is characterized in that: The first wiring harness and the second wiring harness are LVDS lines respectively, and the third wiring harness is a CAN line.

6. A vehicle ceiling screen control system according to any one of claims 1 to 5, characterized in that: The rear screen is provided with a camera, which is used to photograph the rear seats to obtain image data, and transmit the image data to the controller through the first wiring harness; The ceiling screen includes a motor drive module and a motor module, and the motor drive module is used to drive the motor module to adjust the posture of the ceiling screen; The controller is further configured to perform person recognition on the image data, and when a person is recognized to appear, perform one or more of the following steps: Sending a first control instruction to the rear screen through the first wiring harness, wherein the first control instruction is used to trigger the rear screen to display a control for controlling the ceiling screen; Sending a second control instruction to the ceiling screen through the third wiring harness, wherein the second control instruction is used to trigger the motor drive module to adjust the ceiling screen to a first posture through the motor module; and A third control instruction is sent to the ceiling screen through the second wiring harness, wherein the third control instruction is used to trigger the ceiling screen to display a first picture.

7. According to claim 6, the vehicle ceiling screen control system is characterized in that: The motor drive module includes a first motor drive device, the motor module includes a first motor, and the first motor drive device is used to drive the first motor to move the ceiling screen along the width direction of the vehicle; When the number of the character is one, the second control instruction is used to trigger the first motor driving device to drive the first motor so that the ceiling screen moves to the front of the character; as well as In the case where there are multiple characters, the second control instruction is used to trigger the first motor driving device to drive the first motor so that the ceiling screen moves to the center position of the vehicle width.

8. According to claim 6, the vehicle ceiling screen control system is characterized in that: The motor drive module includes a second motor drive device, and the motor module includes a second motor. The second motor drive device is used to drive the second motor so that the ceiling screen can pitch and rotate around the vehicle width direction. The second control instruction is used to trigger the second motor drive device to drive the second motor so that the ceiling screen can rotate to a first angle.

9. A vehicle ceiling screen control system according to any one of claims 1 to 5, characterized in that: The rear screen is provided with a camera, which is used to photograph the rear seats to obtain image data, and transmit the image data to the controller through the first wiring harness; The controller is also used for: Determining a user posture by performing posture recognition on the image data; Determining the screen display direction corresponding to the user gesture based on a mapping relationship between a preset gesture and a preset screen display direction; as well as A fourth control instruction is sent to the ceiling screen through the second wiring harness, wherein the fourth control instruction is used to trigger the ceiling screen to display the picture in the picture display direction.

10. A vehicle ceiling screen control system according to any one of claims 1 to 5, characterized in that: The controller is also used for: receiving the execution result sent by the ceiling screen through the second wire harness or the third wire harness; and A fifth control instruction is sent to the rear screen through the first wiring harness, wherein the fifth control instruction is used to trigger the rear screen to prompt the execution result.

11. A vehicle, characterized in that: The vehicle comprises the vehicle ceiling screen control system according to any one of claims 1 to 10.

12. A control method for a vehicle ceiling screen, characterized in that: The ceiling screen is installed on the top of the vehicle, and the control method includes: receiving a touch signal from a rear screen of a vehicle through a first wiring harness, wherein the rear screen is installed behind a front seat, and the touch signal is generated based on a user's touch on the rear screen; determining a signal type of the touch signal, wherein the signal type includes a display type and a posture type; and A communication harness is selected according to the signal type to send a signal to the ceiling screen, wherein when the signal type is the display type, a signal including display content is sent to the ceiling screen through the second harness, and the signal is used to trigger the ceiling screen to display the display content; when the signal type is the posture type, a posture control signal is sent to the ceiling screen through the third harness, and the posture control signal is used to control the posture of the ceiling screen.

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