Vehicle-mounted display device and vehicle

Abstract

The invention discloses a vehicle-mounted display device and a vehicle, and the vehicle-mounted display device comprises at least one basic function micro-control unit which is used for converting simple information of the vehicle into a display control signal; and the at least one display screen is connected with the at least one basic function micro-control unit and is only used for displaying the simple information of the vehicle according to the display control signal. By adopting the device, the simple information of the vehicle can be displayed, and a high-performance controller and an Android operating system do not need to be configured, so that the hardware cost and the complexity of software design are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular, to an in-vehicle display device and a vehicle. Background Art

[0002] Currently, the screens of vehicles usually display various types of information. For example, the information includes navigation and interactive information, etc. Different types of information are displayed through split screens such as dual screens or multiple screens, and dual screens or multiple screens need to be implemented through the Android or Linux system. This display method is rather messy when displaying different types of information, and even fails to display conventional simple information on the screen. Users need to perform cumbersome operations to query the required information. At the same time, in order to implement split screen or multi-screen display, a controller such as an SOC (System on Chip) and software design need to be configured, which also increases the hardware cost and the complexity of software design. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. For this reason, one object of the present invention is to provide an in-vehicle display device. By using this device, the display of simple vehicle information can be realized, and there is no need to configure a high-performance controller and an Android operating system, thereby reducing the hardware cost and the complexity of software design.

[0004] The second object of the present invention is to provide a vehicle.

[0005] To solve the above problems, an embodiment of the first aspect of the present invention provides an in-vehicle display device, including: at least one basic function microcontroller unit for converting simple vehicle information into a display control signal; at least one display screen, connected to the at least one basic function microcontroller unit, and only used for displaying the simple vehicle information according to the display control signal.

[0006] According to the in-vehicle display device of the embodiment of the present invention, after the basic function microcontroller unit of the in-vehicle display device converts the simple vehicle information into a display control signal, it is sent to the display screen. Among them, the simple vehicle information can be weather, date, temperature, music display rhythm spectrum, dynamic expression, etc. The display screen displays the corresponding simple vehicle information according to the received display control signal. Thus, in this application, the display of simple vehicle information is realized through an independent in-vehicle display device, and the basic function microcontroller unit only needs to have basic functions, and there is no need to configure a high-performance controller and an Android operating system, thereby reducing the hardware cost and the complexity of software design.

[0007] In some embodiments, the in-vehicle display device includes a plurality of the display screens and a plurality of the basic function microcontroller units; the plurality of display screens are connected to the plurality of basic function microcontroller units in a one-to-one correspondence.

[0008] In some embodiments, each of the basic function micro - control units stores the same firmware; each of the basic function micro - control units is configured with different identification information, and the identification information is used to identify the identity of the basic function micro - control unit, so as to execute the function instructions corresponding to the basic function micro - control unit according to the identity.

[0009] In some embodiments, one of the multiple basic function micro - control units is the master micro - control unit; the basic function micro - control units other than the master micro - control unit among the multiple basic function micro - control units are slave micro - control units; the master micro - control unit is used to configure the functions of each of the slave micro - control units according to function configuration instructions.

[0010] In some embodiments, the master micro - control unit is connected to each of the slave micro - control units through a serial peripheral interface and an input / output interface for signal synchronization.

[0011] In some embodiments, the in - vehicle display device further includes: a plurality of CAN transceivers, and the plurality of CAN transceivers are respectively connected to the plurality of basic function micro - control units in one - to - one correspondence, and are used to send vehicle CAN bus information to the corresponding basic function micro - control unit.

[0012] In some embodiments, the in - vehicle display device further includes: a lifting mechanism, connected to the at least one basic function micro - control unit, and used to lift according to the start - stop state of the vehicle; the at least one basic function micro - control unit and the at least one display screen are both located on the lifting mechanism.

[0013] In some embodiments, the lifting mechanism includes: a lifting actuator, used to rise to a termination position or descend to a starting position; a driving member, connected to the lifting actuator, and used to drive the lifting actuator to rise in response to vehicle start or drive the lifting actuator to descend in response to vehicle shutdown; a drive control unit, connected to the driving member and the master micro - control unit, and used to control the driving member according to vehicle start - stop instructions.

[0014] In some embodiments, the lifting mechanism further includes: a first limit switch, and the first limit switch is arranged at the top of the lifting actuator and used to send a first in - place signal in response to the lifting actuator rising to the termination position.

[0015] In some embodiments, the master micro - control unit is further connected to the first limit switch, and is used to determine that the lifting actuator rises abnormally or does not receive the first in - place signal according to the operating state of the driving member, and in response to the elimination of the abnormal rise, control the lifting actuator to continue rising until the termination position.

[0016] In some embodiments, the lifting mechanism further includes: a second limit switch disposed at the bottom of the lifting actuator for sending a second in-place signal in response to the lifting actuator descending to the starting position.

[0017] In some embodiments, the main micro-control unit is also connected to the second limit switch, and is configured to determine that the lifting actuator descends abnormally according to the operating state of the driving member or the second in-place signal, and control the lifting actuator to continue descending until the starting position in response to the elimination of the abnormal descent.

[0018] In some embodiments, the in-vehicle display device further includes: an ambient light and an ambient light control unit, both the ambient light and the ambient light control unit are disposed on the lifting mechanism, and the ambient light control unit is respectively connected to the ambient light and the main micro-control unit for controlling the ambient light according to the vehicle state.

[0019] A second aspect embodiment of the present invention provides a vehicle including the in-vehicle display device described in the above embodiments.

[0020] According to the vehicle of the embodiments of the present invention, through the in-vehicle display device described in the above embodiments, the display of simple vehicle information can be realized, and there is no need to configure a high-performance controller and an Android operating system, thereby reducing the hardware cost and the complexity of software design.

[0021] In some embodiments, the in-vehicle display device is installed below the front windshield of the vehicle and behind the vehicle's center console.

[0022] The additional aspects and advantages of the present invention will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0024] Figure 1 is a structural block diagram of an in-vehicle display device according to an embodiment of the present invention;

[0025] Figure 2 is a schematic diagram of an in-vehicle display device according to an embodiment of the present invention;

[0026] Figure 3 is a schematic diagram of an in-vehicle display device according to another embodiment of the present invention;

[0027] Figure 4 is a structural block diagram of a vehicle according to an embodiment of the present invention.

[0028] Reference Signs:

[0029] Vehicle 100; In-vehicle display device 10;

[0030] Basic function microcontroller unit 1; Display screen 2; Main microcontroller unit 3; Slave microcontroller unit 4; CAN transceiver 5; Drive control unit 6; Ambient light control unit 7; Storage unit 8; Ambient light 9. Detailed Implementation Modes

[0031] Embodiments of the present invention will be described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. Embodiments of the present invention will be described in detail below.

[0032] To solve the above problems, an embodiment of the first aspect of the present invention provides an in-vehicle display device. Using this device, the display of simple vehicle information can be achieved, and there is no need to configure a high-performance controller and an Android operating system, thereby reducing the hardware cost and the complexity of software design.

[0033] Reference will be made below to Figure 1 describe the in-vehicle display device 10 according to an embodiment of the present invention. As Figure 1 shown, the in-vehicle display device 10 includes: at least one basic function microcontroller unit 1 and at least one display screen 2. For example, one basic function microcontroller unit, or two basic function microcontroller units, or more basic function microcontroller units. For example, one display screen, or two display screens, or more display screens. In the embodiment, the number of basic function microcontroller units may be the same as or different from the number of display screens.

[0034] Among them, at least one basic function microcontroller unit 1 is used to convert simple vehicle information into a display control signal; at least one display screen 2 is connected to at least one basic function microcontroller unit 1 and is only used to display simple vehicle information according to the display control signal.

[0035] Specifically, currently, different types of information are displayed through split screens such as dual screens or multiple screens. This display method is rather messy when displaying different types of information, and even conventional simple information cannot be displayed on the screen. To solve this problem, in this application, the vehicle simple information is displayed through the independent vehicle-mounted display device 10 to share the information displayed by the existing central control screen or large screen split screen, so as to realize the display of the vehicle simple information. That is to say, at least one basic function micro-control unit 1 of the vehicle-mounted display device 10 converts the vehicle simple information into a display control signal. Among them, the vehicle simple information can be message information such as weather, date, temperature, music display rhythm spectrum, and dynamic expression. To display each of these message information, only the corresponding content can be obtained according to the settings of the corresponding software, and then the display control signal is sent to the display screen 2 correspondingly connected to at least one basic function micro-control unit 1. The display screen 2 displays the corresponding vehicle simple information according to the received display control signal. In addition, for the basic function micro-control unit 1, only basic functions such as simple information processing and information transmission are required, and it only needs to support the display of a small-size, low-resolution display screen 2, and there is no need to have an Android operating system. For the display screen 2, it can only display vehicle simple information, and a small-size, low-resolution screen can be used to reduce costs. Thus, in this application, the vehicle simple information is displayed through the independent vehicle-mounted display device 10, and the basic function micro-control unit 1 only needs to have basic functions, without the need to configure a high-performance controller and an Android operating system or a Linux system, thereby reducing the hardware cost and the complexity of software design.

[0036] According to the vehicle-mounted display device 10 of the embodiment of the present invention, the basic function micro-control unit 1 of the vehicle-mounted display device 10 converts the vehicle simple information into a display control signal and then sends it to the display screen 2. Among them, the vehicle simple information can be message information such as weather, date, temperature, music display rhythm spectrum, and dynamic expression. To display each of these message information, only the corresponding content can be obtained according to the settings of the corresponding software, and the display screen 2 displays the corresponding vehicle simple information according to the received display control signal. Thus, in this application, the vehicle simple information is displayed through the independent vehicle-mounted display device 10, and the basic function micro-control unit 1 only needs to have basic functions, without the need to configure a high-performance controller and an Android operating system, thereby reducing the hardware cost and the complexity of software design.

[0037] In some embodiments, the in-vehicle display device 10 further includes: a lifting mechanism. The lifting mechanism is connected to at least one basic function microcontroller unit 1 and is configured to lift according to the start / stop state of the vehicle. At least one basic function microcontroller unit 1 and at least one display screen 2 are both located on the lifting mechanism. That is to say, when the basic function microcontroller unit 1 determines that the vehicle starts, i.e., the vehicle is in the start state, for example, after the basic function microcontroller unit 1 detects the ignition signal and determines that the vehicle is in the start state, it controls the lifting mechanism to drive the basic function microcontroller unit 1 and the display screen 2 to rise, so as to facilitate the user to view the simple vehicle information displayed on the display screen 2, improving driving safety. When the basic function microcontroller unit 1 determines that the vehicle stops, i.e., the vehicle is in the stop state, for example, the basic function microcontroller unit 1 determines that the vehicle is in the stop state by detecting the change in the state of the brake pedal, whether the vehicle speed drops to zero, and the changes in the vehicle position and speed, and controls the lifting mechanism to drive the basic function microcontroller unit 1 and the display screen 2 to descend to save the interior space of the vehicle and enhance the user experience.

[0038] In addition, the display screen 2 can be controlled to turn off when the vehicle is in the stop state. The lifting mechanism can be provided under the front windshield, behind the center console, or at other positions of the vehicle.

[0039] In some embodiments, the in-vehicle display device 10 includes a plurality of display screens 2 and a plurality of basic function microcontroller units 1; the plurality of display screens 2 are connected to the plurality of basic function microcontroller units 1 in a one-to-one correspondence. With this design, the plurality of basic function microcontroller units 1 perform data interaction with the vehicle. The plurality of basic function microcontroller units 1 respectively control the corresponding connected display screens 2 to display vehicle information. For the plurality of display screens 2, they can display vehicle information or different vehicle information. The displayed vehicle information can be vehicle simple information, vehicle status information, fault diagnosis information, safety information, and other vehicle information, which is not limited herein. In addition, the plurality of basic function microcontroller units 1 can be connected to the lifting mechanism. Thus, the in-vehicle display device 10 in the present application realizes multi-screen display through the plurality of display screens 2 and the plurality of basic function microcontroller units 1, so as to be able to display different types of information while reducing the information displayed on the vehicle, and different types of information can be displayed through multiple screens. In addition, for the plurality of basic function microcontroller units 1, only basic functions are required, without the need to configure high-performance controllers and Android operating systems, thereby reducing the hardware cost and the complexity of software design.

[0040] In an embodiment, as Figure 2 shown, the in-vehicle display device 10 includes a storage unit 8.

[0041] In some embodiments, each basic function microcontroller unit 1 stores the same firmware. For example, each basic function microcontroller unit 1 stores the same firmware through a storage unit respectively. The storage unit can be a Nor flash (non-volatile flash memory), and the Nor flash also stores a font library and UI (User Interface) pictures. Each basic function microcontroller unit 1 is configured with different identity recognition information. That is to say, each basic function microcontroller unit 1 is configured with a unique identity recognition information. Among them, the identity recognition information can be a serial number, an identifier, etc. Thus, the identity of the basic function microcontroller unit 1 can be recognized through the identity recognition information, and the function instructions corresponding to the basic function microcontroller unit 1 can be executed according to the identity. That is, when the basic function microcontroller unit 1 receives a function instruction, the vehicle will verify the identity recognition information of the basic function microcontroller unit 1 to execute the function instructions corresponding to the basic function microcontroller unit 1 according to the identity. Among them, the function instructions can be a control display signal, a lifting control signal or an atmosphere light control signal. Thus, according to the identity recognition information, the basic function microcontroller unit 1 is controlled to execute the corresponding function instructions, so that each basic function microcontroller unit 1 executes different control instructions. In addition, by storing the identity recognition information in each basic function microcontroller unit 1, the content of the storage unit of each basic function microcontroller unit 1 is made the same, thus avoiding burning the firmware of each basic function microcontroller unit 1 in reverse during the production process.

[0042] Exemplarily, a plurality of basic function microcontroller units 1 include a first basic function microcontroller unit and a second basic function microcontroller unit. The identity recognition information of the first basic function microcontroller unit is ID1, and the second basic function microcontroller unit is ID2. Since ID1 and ID2 provide two different level signals of high and low, the vehicle can determine whether the basic function microcontroller unit 1 is the first basic function microcontroller unit or the second basic function microcontroller unit according to the level signal, so that the same content can be burned into the flash memories of the first basic function microcontroller unit and the second basic function microcontroller unit, or the vehicle software system can execute the function instructions corresponding to the basic function microcontroller unit 1 according to the difference of the identity recognition information ID. That is, control the first basic function microcontroller unit to execute function instructions such as a display instruction for controlling the connected display screen 2, a lifting control signal or an atmosphere light 9 control signal, and control the second basic function microcontroller unit to execute a display instruction for controlling the connected display screen 2.

[0043] In some embodiments, one of the plurality of basic function microcontroller units 1 is a main microcontroller unit 3, such as Figure 2As shown, the main microcontroller unit is 3; among the multiple basic function microcontroller units 1, the basic function microcontroller units 1 other than the main microcontroller unit 3 are slave microcontroller units 4; the main microcontroller unit 3 is used to configure the functions of each slave microcontroller unit 4 according to function configuration instructions. For example, the main microcontroller unit 3 configures each slave microcontroller unit 4 to receive different vehicle information through function configuration instructions, so that each slave microcontroller unit 4 controls the corresponding connected display screen 2 to display different vehicle information. Thus, the main microcontroller unit 3 is responsible for allocating the functions of each slave microcontroller unit 4, and each slave microcontroller unit 4 executes specific functions. The division of labor and cooperation between the main microcontroller unit 3 and each slave microcontroller unit 4 enables the entire system to operate efficiently.

[0044] Exemplarily, the in-vehicle display device 10 includes two display screens 2 and two basic function microcontroller units 1. The first display screen 2 is connected to the first basic function microcontroller unit, and the first basic function microcontroller unit can be connected to a stepping mechanism. The second display screen 2 is connected to the second basic function microcontroller unit, and the second basic function microcontroller unit can be connected to a stepping mechanism. The first basic function microcontroller unit and the second basic function microcontroller unit can use low-cost processors of the same model and support small-size and low-resolution screen display functions. Taking the first basic function microcontroller unit as the master device, the first basic function microcontroller unit controls the lifting mechanism and the display of the first display screen 2. Among them, the lifting mechanism is the lifting mechanism corresponding to the connection between the first basic function microcontroller unit and the second basic function microcontroller unit. The second basic function microcontroller unit serves as a slave device of the first basic function microcontroller unit and mainly controls the display of the second display screen 2.

[0045] In some embodiments, the main microcontroller unit 3 is connected to each slave microcontroller unit 4 through a serial peripheral interface and an input / output interface for signal synchronization. That is to say, when controlling multiple display screens 2 to synchronously display vehicle information, the main microcontroller unit 3 can perform signal synchronization on each slave microcontroller unit 4 through the serial peripheral interface and the input / output interface, so that each microcontroller unit synchronously receives and controls the corresponding display screen 2 to display vehicle summary information or other vehicle information. Thus, using the serial peripheral interface and the input / output interface can efficiently realize data interaction between the main microcontroller unit 3 and each slave microcontroller unit 4. The serial peripheral interface can be used for data interaction between the main microcontroller unit 3 and each slave microcontroller unit 4, such as transmitting status information and diagnostic information, etc. In addition, the serial peripheral interface can be an SPI interface (Synchronous Serial Bus, Serial Peripheral Interface), such as Figure 2As shown, the main microcontroller unit 3 communicates with the slave microcontroller units 4 through a serial peripheral interface, namely SPI, or GPIOs, namely input / output interfaces. Since the input / output interfaces are usually used to implement fast-response interrupt signals and the response rate of the input / output interfaces is greater than that of the serial peripheral interface, the input / output interfaces are used to notify the main microcontroller unit 3 and each slave microcontroller unit 4 of the displayed content. For example, when the vehicle simple information or other information changes, the main microcontroller unit 3 can send an interrupt signal to each slave microcontroller unit 4 through the input / output interface to notify each slave microcontroller unit 4 to update the information on the corresponding display screen 2, so as to reduce the time difference when the main microcontroller unit 3 and each slave microcontroller unit 4 display the content on the corresponding display screen 2, and can also ensure that the animation is played synchronously on the screen corresponding to each microcontroller when the power-on times of the two systems are different.

[0046] In an embodiment, as Figure 2 shown, the main microcontroller unit 3 sends a signal to the display screen 2 through MIPI (Mobile Industry Processor Interface), and the slave microcontroller unit 4 sends a signal to the display screen 2 through MIPI. The Nor flash communicates bidirectionally with the main microcontroller unit 3 or the slave microcontroller unit 4 through the SPI interface.

[0047] In some embodiments, the basic function microcontroller unit 1 supports basic communication interfaces such as SPI / CAN (Controller Area Network) / PWM (Pulse Width Modulation) / ADC (analog to Digital Converter interface) / I2C (Inter-Integrated Circuit) interface.

[0048] In some embodiments, as Figure 2 and Figure 3As shown, the in-vehicle display device 10 further includes: a plurality of CAN transceivers 5. Among them, the plurality of CAN transceivers 5 are respectively connected to the plurality of basic function microcontrollers 1 in one-to-one correspondence, and are used to send the vehicle CAN bus information to the corresponding basic function microcontroller 1. That is to say, when each CAN transceiver 5 receives the vehicle CAN bus information, namely the messages on the same vehicle CAN bus, where the vehicle CAN bus information can be message information such as time, weather, music spectrum, voice commands, etc., and then sends the vehicle CAN bus information to the basic function microcontroller 1 corresponding to the connection of each CAN transceiver 5 respectively, so that each basic function microcontroller 1 synchronously receives the vehicle CAN bus information, and then each basic function microcontroller 1 screens and uses the vehicle CAN bus information according to the software settings and controls the corresponding display screen 2 to display the selected content.

[0049] In an embodiment, as Figure 2 and Figure 3 shown, the main microcontroller 3 or the slave microcontroller 4 communicates bidirectionally with the CAN transceiver 5.

[0050] In some embodiments, the lifting mechanism includes: a lifting actuator, a driving member, and a driving control unit 6.

[0051] Among them, the lifting actuator is used to rise to the termination position or descend to the starting position; the driving member is connected to the lifting actuator and is used to drive the lifting actuator to rise in response to vehicle startup or drive the lifting actuator to descend in response to vehicle shutdown; the driving control unit 6 is connected to the driving member and the main microcontroller 3 and is used to control the driving member according to the vehicle start-stop command. The driving member can be a motor such as a stepper motor, and the driving control unit 6 can be a motor driver chip.

[0052] Specifically, when the main microcontroller unit 3 sends a lifting control signal to the drive control unit 6 according to the vehicle start / stop instruction, where the vehicle start / stop instruction includes a vehicle start instruction and a vehicle stop instruction. For example, when the main microcontroller unit 3 detects an ignition signal and determines that the vehicle is in a starting state, i.e., the vehicle start instruction, it sends a rising control signal to the drive control unit 6 according to the vehicle start instruction. The drive control unit 6 controls the driving member to drive the lifting actuator to rise to the termination position according to the rising control signal. The lifting actuator drives the basic function microcontroller unit 1 and the display screen 2 to rise to the termination position, so as to facilitate the user to view the simple vehicle information displayed on the display screen 2, improving driving safety. When the basic function microcontroller unit 1 detects the vehicle stop instruction, it sends a descending control signal to the drive control unit 6 according to the vehicle stop instruction. The drive control unit 6 controls the driving member to drive the lifting actuator to descend to the starting position according to the descending control signal. The lifting actuator drives the basic function microcontroller unit 1 and the display screen 2 to descend to the starting position to save the interior space of the vehicle and enhance the user experience. In addition, the user can also independently control the lifting of the display screen through the setting menu on the central control screen or intelligent voice.

[0053] In an embodiment, as Figure 2 shown, the main microcontroller unit 3 sends a lifting control signal to the drive control unit 6 through the PWM port or GPIO. The drive control unit 6 controls the motor to rotate according to the received lifting control signal to drive the display screen and the basic function microcontroller unit 1 to rise or fall.

[0054] In some embodiments, the lifting mechanism further includes: a first limit switch. The first limit switch is disposed at the top of the lifting actuator and is used to issue a first in-place signal in response to the lifting actuator rising to the termination position. With this design, when the lifting actuator drives the basic function microcontroller unit 1 and the display screen 2 to rise to the termination position, it will touch the first limit switch. At this time, the first limit switch responds and issues a first in-place signal to notify the main microcontroller unit 3 that the lifting actuator has driven the basic function microcontroller unit 1 and the display screen 2 to reach the termination position.

[0055] In some embodiments, the main microcontroller unit 3 is also connected to the first limit switch and is used to determine that the lifting actuator rises abnormally or does not receive the first in-place signal according to the operating state of the driving member, and responds to the elimination of the rising abnormality to control the lifting actuator to continue rising until the termination position.

[0056] Specifically, during the process that the driving member drives the lifting actuator to rise to the termination position, if the lifting actuator rises abnormally or does not receive the first in-place signal, that is, the first limit switch is not triggered. Among them, the abnormal rise of the lifting actuator can be interference caused by being pressed by a person, and the main micro-control unit 3 can identify the abnormal rise of the lifting actuator according to the stall current and the first in-place signal. At this time, the lifting actuator cannot continue to rise. Then, in response to the elimination of the abnormal rise, when the interference is eliminated, the driving member will continue to drive the lifting actuator to rise to the termination position and trigger the first in-place signal. Thus, after identifying the abnormal rise of the lifting actuator and eliminating the abnormality, the lifting actuator is controlled to continue to rise until the termination position, so as to ensure the normal operation of the lifting mechanism.

[0057] In some embodiments, the lifting mechanism further includes: a second limit switch, which is arranged at the bottom of the lifting actuator and is used to emit a second in-place signal in response to the lifting actuator descending to the starting position. With this design, when the lifting actuator drives the basic function micro-control unit 1 and the display screen 2 to descend to the starting position, it will touch the second limit switch. At this time, the second limit switch responds and emits a second in-place signal to notify the main micro-control unit 3 that the lifting actuator has driven the basic function micro-control unit 1 and the display screen 2 to reach the starting position.

[0058] In some embodiments, the main micro-control unit 3 is also connected to the second limit switch and is used to determine the abnormal descent of the lifting actuator according to the operating state of the driving member or the second in-place signal, and in response to the elimination of the abnormal descent, control the lifting actuator to continue to descend until the starting position.

[0059] Specifically, during the process that the driving member drives the lifting actuator to descend until the starting position, if the lifting actuator descends abnormally or does not receive the second in-place signal, that is, the second limit switch is not triggered. Among them, the abnormal rise of the lifting actuator can be interference caused by being pressed by a person, and the main micro-control unit 3 can identify the abnormal descent of the lifting actuator according to the stall current and the second in-place signal. At this time, the lifting actuator cannot continue to descend. Then, in response to the elimination of the abnormal descent, when the interference is eliminated, the driving member will continue to drive the lifting actuator to descend until the starting position and trigger the second in-place signal. Thus, after identifying the abnormal descent of the lifting actuator and eliminating the abnormality, the lifting actuator is controlled to continue to descend until the starting position, so as to ensure the normal operation of the lifting mechanism.

[0060] In the embodiment, as Figure 2 shown, the first limit switch and the second limit switch send in-place signals to the main micro-control unit 3 through GPIOs. The first limit switch and the second limit switch are small boards.

[0061] In some embodiments, as Figure 2 and Figure 3As shown in the figure, the in-vehicle display device 10 further includes: an ambient light 9 and an ambient light control unit 7. The ambient light 9 and the ambient light control unit 7 are both disposed on the lifting mechanism. The ambient light control unit 7 is respectively connected to the ambient light 9 and the main micro-control unit 3, and is used to control the ambient light 9 according to the vehicle state.

[0062] Specifically, when the lifting mechanism drives the basic function micro-control unit 1 and the display screen 2 to rise or fall, the atmosphere can be adjusted through the ambient light 9. That is to say, when the main micro-control unit 3 detects the vehicle state, it generates an ambient light control signal according to the vehicle state and sends it to the ambient light control unit 7, so that the ambient light control unit 7 can control the color and brightness of the ambient light 9 according to the vehicle state. The vehicle state can be vehicle start or vehicle stop. For example, when the main micro-control unit 3 detects that the vehicle state is vehicle start, it controls the light effect of the ambient light 9 according to the vehicle start state while the lifting mechanism drives the basic function micro-control unit 1 and the display screen 2 to rise. That is, first, a corresponding ambient light control signal is generated according to the vehicle start state, and then the ambient light control signal is sent to the ambient light control unit 7. The ambient light control unit 7 then controls the color change, brightness, and blinking frequency of the ambient light 9 according to the ambient light control signal corresponding to the vehicle start state. At this time, the ambient light 9 blinks in a certain color when the lifting mechanism rises, increasing the driving comfort. Or when the main micro-control unit 3 detects that the vehicle state is vehicle stop state, it controls the light effect of the ambient light 9 according to the vehicle start state while the lifting mechanism drives the basic function micro-control unit 1 and the display screen 2 to fall. That is, first, a corresponding ambient light control signal is generated according to vehicle stop, and then the signal is sent to the ambient light control unit 7. The ambient light control unit 7 then controls the color, brightness, and blinking frequency of the ambient light 9 according to the ambient light control signal corresponding to the vehicle start state. At this time, the ambient light 9 blinks in a certain color when the lifting mechanism falls, reducing the user's driving fatigue.

[0063] In the embodiment, as Figure 2 shown, the main micro-control unit 3 controls the ambient light control unit 7 to send an ambient light control signal through the I2C and GPIO interfaces, and the ambient light control unit 7 then controls the light effect of the ambient light according to the received ambient light control signal.

[0064] In the embodiment, the setting directions and sizes of the multiple display screens 2 are not limited. One display screen 2 faces the driver's seat, and the other display screen 2 faces the passenger's seat. The two display screens 2 can cooperate with intelligent voice to display dynamic expressions, and respectively display information such as music display rhythm spectrum, weather, and date.

[0065] In the second aspect embodiment of the present invention, a vehicle 100 is provided, as Figure 4 shown, the vehicle 100 includes the in-vehicle display device 10 of the above embodiment.

[0066] According to the vehicle of the embodiment of the present invention, through the in-vehicle display device 10 described in the above embodiment, the display of simple vehicle information can be realized, and there is no need to configure a high-performance controller and an Android operating system, thereby reducing the hardware cost and the complexity of software design.

[0067] In some embodiments, the in-vehicle display device 10 is installed below the front windshield of the vehicle and behind the vehicle's center console. Alternatively, the in-vehicle display device 10 can also be installed below the front windshield of the vehicle or behind the vehicle's center console or other positions, so that the driver can easily see the content displayed by the in-vehicle display device 10, improving driving safety.

[0068] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example.

[0069] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. An in-vehicle display device, characterized in that, it includes: At least one basic function microcontroller unit, which is used to convert vehicle simple information into display control signals; At least one display screen, connected to the at least one basic function microcontroller unit, and is only used to display the vehicle simple information according to the display control signals.

2. The in-vehicle display device according to claim 1, characterized in that, the in-vehicle display device includes a plurality of the display screens and a plurality of the basic function microcontroller units; The plurality of display screens are connected to the plurality of basic function microcontroller units in one-to-one correspondence.

3. The in-vehicle display device according to claim 2, characterized in that, each of the basic function microcontroller units stores the same firmware; each of the basic function microcontroller units is configured with different identification information, and the identification information is used to identify the identity of the basic function microcontroller unit, so as to execute the function instructions of the corresponding basic function microcontroller unit according to the identity.

4. The in-vehicle display device according to claim 2, characterized in that, one of the plurality of basic function microcontroller units is the main microcontroller unit; the basic function microcontroller units other than the main microcontroller unit among the plurality of basic function microcontroller units are slave microcontroller units; The main microcontroller unit is used to configure the functions of each of the slave microcontroller units according to function configuration instructions.

5. The in-vehicle display device according to claim 4, characterized in that, the main microcontroller unit is connected to each of the slave microcontroller units through a serial peripheral interface and an input / output interface for signal synchronization.

6. The in-vehicle display device according to claim 2, characterized in that, the in-vehicle display device further includes: A plurality of CAN transceivers, the plurality of CAN transceivers are connected to the plurality of basic function microcontroller units in one-to-one correspondence, and are used to send vehicle CAN bus information to the corresponding basic function microcontroller unit.

7. The in-vehicle display device according to claim 4, characterized in that, the in-vehicle display device further includes: A lifting mechanism, connected to the at least one basic function microcontroller unit, and is used to lift according to the vehicle start-stop state; The at least one basic function microcontroller unit and the at least one display screen are both located on the lifting mechanism.

8. The in-vehicle display device according to claim 7, characterized in that, the lifting mechanism includes: A lifting actuator, which is used to rise to a termination position or descend to a starting position; A driving member, connected to the lifting actuator, and is used to drive the lifting actuator to rise in response to vehicle startup or drive the lifting actuator to descend in response to vehicle shutdown; A drive control unit, connected to the driving member and the main microcontroller unit, and is used to control the driving member according to vehicle start-stop instructions.

9. The in-vehicle display device according to claim 8, characterized in that, the lifting mechanism further includes: A first limit switch, the first limit switch is arranged at the top of the lifting actuator, and is used to send a first in-place signal in response to the lifting actuator rising to the termination position.

10. The in-vehicle display device according to claim 9, wherein, the main micro-control unit is further connected to the first limit switch, and is configured to determine that the lifting actuator rises abnormally or does not receive the first in-place signal according to the operating state of the driving member, and in response to the elimination of the rising abnormality, control the lifting actuator to continue rising until the termination position.

11. The in-vehicle display device according to claim 8, wherein, the lifting mechanism further includes: a second limit switch, which is arranged at the bottom of the lifting actuator and is configured to emit a second in-place signal in response to the lifting actuator descending to the starting position.

12. The in-vehicle display device according to claim 11, wherein, the main micro-control unit is further connected to the second limit switch, and is configured to determine that the lifting actuator descends abnormally according to the operating state of the driving member or the second in-place signal, and in response to the elimination of the descending abnormality, control the lifting actuator to continue descending until the starting position.

13. The in-vehicle display device according to claim 7, wherein, the in-vehicle display device further includes: a mood light and a mood light control unit, both the mood light and the mood light control unit are arranged on the lifting mechanism, and the mood light control unit is respectively connected to the mood light and the main micro-control unit, and is configured to control the mood light according to the vehicle state.

14. A vehicle, wherein, it includes the in-vehicle display device according to any one of claims 1-13.

15. The vehicle according to claim 14, wherein, the in-vehicle display device is installed below the front windshield of the vehicle and behind the center console of the vehicle.

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