Vehicle-mounted LED display system and vehicle

Abstract

The application provides a vehicle-mounted LED display system and a vehicle, and mainly relates to the technical field of vehicle display, which can more flexibly indicate the vehicle light. The vehicle-mounted LED display system comprises a vehicle machine module, a main control module and an LED display panel. The LED display panel is arranged outside the vehicle, and the main control module is electrically connected with the vehicle machine module and the LED display panel, respectively. The vehicle machine module is used for sending a vehicle machine signal to the main control module. The main control module is used for generating first display data corresponding to the LED display panel according to the vehicle machine signal, and sending the first display data to the corresponding LED display panel. The LED display panel is used for performing image display according to the received first display data.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle display, in particular to a vehicle-mounted LED display system and a vehicle. BACKGROUND

[0002] With the development of the intelligence of more and more vehicles, some vehicles are externally provided with light emitting diode (LED) display screens for auxiliary display. For example, the LED display screens arranged at the front and rear of a bus can display preset program information such as station information, safety prompt words and route numbers, and the LED display screen arranged at the top of a taxi can display advertising words.

[0003] However, the LED display screens currently added to vehicles are all customized based on specific functions, and the display contents thereof are single and fixed, and the vehicle condition information cannot be effectively displayed. SUMMARY

[0004] To solve the above problems, the present application provides a vehicle-mounted LED display system and a vehicle, which can display images based on vehicle machine signals, and improve the display effect of vehicle condition information.

[0005] In a first aspect, the present application provides a vehicle-mounted LED display system, comprising a vehicle machine module, a main control module and at least one group of LED display panels, the main control module being electrically connected to the vehicle machine module and each group of LED display panels respectively. The vehicle machine module is configured to send a vehicle machine signal to the main control module. The main control module is configured to generate first display data corresponding to each group of LED display panels based on the vehicle machine signal, and send the first display data to the corresponding LED display panel. Each group of LED display panels is configured to display images based on the received first display data.

[0006] Based on the vehicle-mounted LED display system provided by the present application, vehicle condition information (such as the driving state of the vehicle, the front vehicle condition and the internal state of the vehicle) can be displayed in the form of images based on the vehicle machine signal, so that more flexible vehicle condition information display is realized.

[0007] In a second aspect, the present application provides a vehicle comprising the vehicle-mounted LED display system according to any one of the optional modes of the first aspect.

[0008] The structure of the present application and its other purposes and beneficial effects will be described in detail by combining the drawings, so as to make the description of the preferred embodiments more obvious and easy to understand. BRIEF DESCRIPTION OF DRAWINGS

[0009] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, the accompanying drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained based on these drawings without creative labor.

[0010] Figure 1 is a structural schematic diagram of a vehicle-mounted LED display system provided by an embodiment of the present application Figure 1 ;

[0011] Figure 2 is a structural schematic diagram of a group of LED display panels provided by an embodiment of the present application

[0012] Figure 3 is a structural schematic diagram of a vehicle provided by an embodiment of the present application

[0013] Figure 4 is a structural schematic diagram of a vehicle-mounted LED display system provided by an embodiment of the present application Figure 2 ;

[0014] Figure 5 is a structural schematic diagram of a vehicle-mounted LED display system provided by an embodiment of the present application Figure 3 ;

[0015] Figure 6 is a structural schematic diagram of a vehicle-mounted LED display system provided by an embodiment of the present application Figure 4 ;

[0016] Figure 7 is a structural schematic diagram of a vehicle-mounted LED display system provided by an embodiment of the present application Figure 5 ;

[0017] Figure 8 is a structural schematic diagram of a vehicle-mounted LED display system provided by an embodiment of the present application Figure 6 ;

[0018] Figure 9 is a structural schematic diagram of a vehicle-mounted LED display system provided by an embodiment of the present application Figure 7 ;

[0019] Figure 10 is a structural schematic diagram of a vehicle-mounted LED display system provided by an embodiment of the present application Figure 8 ;

[0020] Figure 11 is a structural schematic diagram of a vehicle-mounted LED display system provided by an embodiment of the present application Figure 9 ;

[0021] Figure 12is a structure schematic of a vehicle-mounted LED display system provided by an embodiment of the present application Figure 10 ;

[0022] Figure 13 is a structure schematic of a vehicle-mounted LED display system provided by an embodiment of the present application Figure 10 I.

[0023] In the figure, various reference signs are as follows:

[0024] 1 - car machine module;

[0025] 2 - main control module; 201 - control chip; 202 - deserializer; 203 - storage component; 2031 - first storage sub-component; 2032 - second storage sub-component; 204 - interface component; 205 - sensor; 206 - digital chip; 207 - data selector;

[0026] 3 - tail light; 301 - LED display panel; 3011 - decoding chip; 3012 - driving chip; 3013 - lamp bead; 3014 - storage chip;

[0027] 4 - power module;

[0028] 5 - vehicle-mounted battery. DETAILED DESCRIPTION

[0029] To make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0030] The vehicle-mounted LED display system and vehicle provided by the present application will be described below with reference to the drawings.

[0031] The vehicle-mounted LED display system provided by the present application can include a car machine module 1 and an LED display panel 301 as shown in Figure 1 The car machine module 1 is electrically connected with the LED display panel 301, and the LED display panel 301 can display images according to the control of the car machine module 1. For example, the car machine module 1 can control the LED display panel 301 to display corresponding animations according to the driving state of the vehicle. For example, when braking, the LED display panel 301 is controlled to display corresponding braking animations, when turning, the LED display panel 301 is controlled to display corresponding turning animations, and so on.

[0032] Optionally, the vehicle-mounted LED display system may include one LED display panel 301, or at least a group of LED display panels 301. Each group of LED display panels 301 includes multiple LED display panels 301 spliced ​​together. In the embodiments of this application, the number and splicing shape of each group of LED display panels 301 can be set according to the setting position.

[0033] For example, LED display panels can replace traditional vehicle lights on the exterior of the vehicle. Lights in different locations can all be replaced by a set of LED display panels 301. For example, when a set of LED display panels 301 needs to be installed at the rear of the vehicle as taillights, such as... Figure 2 As shown, multiple LED display panels 301 can be sequentially assembled into an arc shape to form the taillight 3.

[0034] It is understandable that the headlights at different locations are achieved through multiple LED display panels, enabling high-resolution image display for the headlights at different positions. For example, the taillight 3 can achieve a horizontal resolution of over 1000 pixels and a vertical resolution of over 50 pixels. Therefore, the vehicle-mounted LED display system provided in this application can provide headlight indication through richer and more recognizable images.

[0035] Optionally, each group of LED display panels 301 can be assembled in series to form a vehicle light, so that when the vehicle light is working, the current of each LED display panel 301 is equal, ensuring the overall display uniformity of the vehicle light.

[0036] In some embodiments, the number of LED display panels 301 can be determined based on the number of vehicle lights required. For example, Figure 3 As shown, the vehicle-mounted LED display system may include a set of LED display panels 301, which together form the vehicle's taillights 3. These taillights 3 can not only display the information that traditional taillights can display through animation, but also display more information, such as visual or textual reminders about children inside the vehicle, novice driver reminders, and road conditions ahead. Furthermore, the LED display panels 301 provided in this application have a larger display area than the taillights, allowing following vehicles to better understand the vehicle's condition and other road conditions, thus reducing the accident rate to some extent.

[0037] Further, when the vehicle encounters an emergency situation and needs to brake urgently, the current tail lamp can only present the braking state, and the following vehicle can only learn that the front vehicle is in the braking state through the tail lamp of the front vehicle, and cannot learn other information. The LED display panel 301 provided in the application can display key information such as "emergency situation, urgent braking" on the basis of displaying the braking state under the control of the vehicle machine module 1, so that the following vehicle can clearly understand the braking reason and timely process based on the information, thereby reducing the accident rate.

[0038] The vehicle-mounted LED display system provided in the application can display vehicle condition information (such as the driving state of the vehicle, the front vehicle condition, the internal state of the vehicle, etc.) in the form of an image based on the vehicle machine signal, thereby realizing a more rich and flexible vehicle condition display effect. Moreover, the vehicle-mounted LED display system includes at least one group of LED display panels 301, and each group of LED display panels 301 includes a plurality of LED display panels 301 that are spliced with each other, so that high-resolution image display can be realized. Therefore, the vehicle-mounted LED display system provided in the application can display vehicle condition information through a more rich and high-identification picture.

[0039] In one example, the vehicle-mounted LED display system can include two groups of LED display panels 301, which can be arranged at the tail and front of the vehicle, or the side of the vehicle. For example, one group of LED display panels 301 is arranged at the front of the vehicle instead of the original headlamp, and one group of LED display panels 301 is arranged at the tail of the vehicle instead of the original tail lamp. The arrangement position and number of the LED display panels 301 can be installed based on the actual use scene, and the application does not make specific limitations thereto.

[0040] In the embodiment of the application, the vehicle-mounted LED display system can control the LED display panel 301 to perform image display in a centralized control mode, that is, as shown in Figure 1 The vehicle machine module 1 can directly send corresponding first display data to the LED display panel 301.

[0041] In another embodiment, the vehicle-mounted LED display system can also control the LED display panel 301 to perform image display in a distributed control mode. For example, as shown in Figure 4 The vehicle-mounted LED display system can also include a master control module 2. The vehicle machine module 1 sends the vehicle machine signal to the master control module 2. The master control module 2 can generate first display data corresponding to the LED display panel 301 according to the vehicle machine signal, and send the first display data to the corresponding LED display panel 301. The LED display panel 301 can perform image display according to the received first display data.

[0042] The vehicle-machine signal can be a vehicle-machine control signal, i.e., a control signal for indicating a vehicle state, such as a control signal generated when braking, a control signal generated when steering, a control signal for indicating a speed, a control signal for indicating an in-vehicle state (e.g., whether there is a child, whether it is a novice driver, etc.), and the like. The vehicle-machine signal can also be a vehicle-machine video signal, such as a video, an image, an advertisement, a front road condition, etc. that the vehicle owner wants to share.

[0043] For example, the vehicle-machine signal is a control signal for a novice driver, and the vehicle-machine module 1 includes a center control screen (i.e., a center control screen installed near the driver's seat) for human-computer interaction. The center control screen displays controls of various application programs (Apps) installed in the vehicle-machine module 1. When the user clicks the control related to the novice driver displayed on the center control screen, the vehicle-machine module 1 receives the control signal for the novice driver and sends it to the master control module 2. The master control module 2 can generate a display data according to the control signal for the novice driver and send it to the LED display panel 301. The LED display panel 301 finally displays the text image "Novice on the road, please keep a distance", thereby prompting surrounding pedestrians and drivers in a more direct way that the current vehicle is in novice driving and please cooperate with the pedestrians.

[0044] For example, the vehicle-machine signal is front road condition information. After the user clicks the "Share front road condition" control on the center control screen, the vehicle-machine module 1 transmits the video data captured by the front camera of the vehicle to the master control module 2 in real time. The master control module 2 can generate a display data according to the received video data and send it to the LED display panel 301. The LED display panel 301 finally displays an image related to the road condition information, thereby informing the following vehicle of the front road condition in a more intuitive way.

[0045] In one embodiment, the master control module 2 can include a control chip 201 and a deserializer 202 as shown in Figure 5 The deserializer 202 is connected to the vehicle-machine module 1. The deserializer 202 is used to decode the vehicle-machine signal into a low-voltage differential signal (LVDS) and send the LVDS to the control chip 201. The control chip 201 can generate a first display data corresponding to each LED display panel 301 according to the received LVDS of the vehicle-machine signal and send the first display data to the corresponding LED display panel 301.

[0046] For example, the deserializer 202 can be a deserializer with a bidirectional control channel, such as DS90UB928, DS90UB927, etc., so that the control chip 201 can not only receive the vehicle-machine signal from the vehicle-machine module 1, but also send a feedback signal back to the vehicle-machine module 1, realizing bidirectional transmission of signals.

[0047] The control chip 201 can be a field programmable gated array (FPGA).

[0048] Optionally, in order to reduce the number of pins and tracks between the master module 2 and the car machine module 1, the car machine module 1 can be connected with the deserializer 202 through a flat panel display link (FPD-Link III) serial bus, which reduces the number of pins between the two and improves the communication data rate.

[0049] Optionally, a high-speed data connector can be arranged on the deserializer 202, which is used to connect the FPD-Link III serial bus. For example, the high-speed data connector of HD1-X-RM-102, HD1-4X-SF-101 and the like.

[0050] In one example, the master module 2 can also include a storage component 203 as shown in Figure 6 The storage component 203 stores the topology of the plurality of LED display panels 301 and the preset image data. For example, the preset image data can include image data related to brake animation, steering animation, novice driving animation, and boot animation, but the present application is not limited thereto.

[0051] Optionally, as shown in Figure 7 The storage component 203 can include a first storage sub-component 2031 and a second storage sub-component 2032. The first storage sub-component 2031 can store the running program of the vehicle-mounted LED display system, the system wiring mode, and the topology of the plurality of LED display panels 301. The second storage sub-component 2032 can store the preset image data. It should be noted that when each group of LED display panels 301 includes a plurality of LED display panels 301, the topology here can refer to the connection mode and wiring between each lamp bead 3013 in the plurality of LED display panels 301.

[0052] For example, the second storage sub-component 2032 can be a double data rate (DDR).

[0053] It is worth mentioning that the so-called preset image data includes a plurality of target image data corresponding to different vehicle signals respectively. For example, in one example, the vehicle signal can be a vehicle control signal, and the vehicle control signal can be a signal for indicating the state of the vehicle. For example, the vehicle module 1 sends the vehicle control signal to the master control module 2, and the master control module 2 determines the target image data corresponding to the vehicle control signal from the pre-stored image data according to the vehicle control signal, and generates the first display data corresponding to each LED display panel 301 according to the topology of the plurality of LED display panels 301 and the target image data.

[0054] For example, when the user wants to display a reminder that there is a child in the car, the user can click the corresponding app control in the center screen in the car. After the vehicle module 1 detects the user instruction, it sends a vehicle control signal indicating that there is a child in the car to the deserializer 202. The deserializer 202 converts the vehicle control signal into LVDS and sends it to the control chip 201. The control chip 201 determines the target image data corresponding to the vehicle control signal (i.e., the image / video of the prompt that there is a child in the car) from the second storage subcomponent 2032 according to the LVDS of the vehicle control signal, and generates the first display data corresponding to each LED display panel 301 according to the topology of the plurality of LED display panels 301 and the target image data stored in the first storage subcomponent 2031, and sends it to each group of LED display panels 301. The LED display panel 301 can display the image / video information of "there is a child in the car".

[0055] It is worth mentioning that in the process of generating the first display data according to the topology and the target image data by the control chip 201, the target image data can be subjected to Gamma transformation, image twisting, image correction and the like, and the first display data for controlling the LED display panel 301 to display images is generated according to the topology of the processed image data.

[0056] For example, the storage component 203 can store display data related to the boot animation. After the vehicle is started, the vehicle module 1 sends a vehicle control signal indicating that the vehicle is started to the master control module 2 to the deserializer 202. The deserializer 202 converts the vehicle control signal into LVDS and sends it to the control chip 201. The control chip 201 obtains the boot animation from the second storage subcomponent 2032 according to the LVDS of the vehicle control signal, and generates the first display data corresponding to each LED display panel 301 according to the topology of the plurality of LED display panels 301 and the boot animation, and sends it to each group of LED display panels 301. The LED display panel 301 can display the video information of the boot animation.

[0057] In another example, the car machine module 1 can also directly send video / image information to the master control module 2, that is, the car machine signal can be a car machine video signal. For example, the car machine module 1 sends a car machine video signal to the master control module 2, and the master control module 2 generates first display data corresponding to each LED display panel 301 according to the topology of the plurality of LED display panels 301 and the car machine video signal.

[0058] For example, when it is needed to display the road conditions in front of the vehicle to the rear vehicle, the user can click the app control for collecting road condition information on the central screen in the vehicle interior, the car machine system 1 collects the road condition video through the camera, and sends the road condition video to the decoder 202 through the FPD-Link serial bus, the decoder 202 converts the road condition video into LVDS and sends it to the control chip 201, the control chip 201 performs Gamma transformation, image twisting, image correction and the like on the LVDS of the road condition video according to the topology stored in the first storage subcomponent 2031, and generates first display data corresponding to each LED display panel 301 and sends it to each group of LED display panels 301, so that the LED display panels 301 can synchronously display the road condition video in front of the vehicle.

[0059] In one example, as shown in Figure 8 The master control module 2 provided by the application can also include an interface component 204, which can be externally connected to a debugging device (i.e., a device for debugging the vehicle-mounted LED display system, wherein the debugging software is run), so that the user can debug the display function of the vehicle-mounted LED display system at any time through the externally connected debugging device. That is, after connecting the debugging device through the interface component 204, the master control module 2 can control at least one group of LED display panels 301 to display images according to the debugging signal sent by the debugging device, and the user can debug the function of the vehicle-mounted LED display system according to the image display state of the LED display panel 301.

[0060] For example, the externally connected debugging device can be a smart screen, a mobile phone, a driving recorder, an ultra-mobile personal computer (UMPC), etc.

[0061] For example, the interface component 204 can be a Type-C interface, a universal serial bus (USB) interface, etc.

[0062] In one example, as shown in Figure 8As shown, the master module 2 can further include a sensor 205, which is connected to the control chip 201, and is used to monitor the running state of the vehicle-mounted LED display system. The sensor 205 can include one or more of a temperature sensor, a pressure sensor, a voltage sensor, etc., and can detect the temperature, pressure, voltage, etc. of the vehicle-mounted LED display system.

[0063] For example, the sensor 205 includes a temperature sensor, which is used to detect the temperature of the vehicle-mounted LED display system. The master module 2 can detect whether the temperature of the vehicle-mounted LED display system exceeds a preset threshold. If the temperature of the vehicle-mounted LED display system exceeds the preset threshold, in order to avoid the LED display panel 301 from being burned out, the master module 2 can start a thermal protection function, i.e., control the LED display panel 301 to stop image display.

[0064] Optionally, the master module 2 can also transmit the data detected by the sensor 205 back to the car module 1, for the user to evaluate whether the running state of the vehicle-mounted LED display system is normal. For example, the user can input a detection instruction (which can be understood as starting a self-checking process of the vehicle-mounted LED display system) through the center screen in the car module 1. The car module 1 sends the detection instruction to the deserializer 202; the deserializer decodes the detection instruction into LVDS and sends it to the control chip 201; the control chip 201 reads the data (e.g., temperature, pressure, voltage, etc.) detected by the sensor 205 according to the LVDS of the detection instruction, and then sends the data detected by the sensor 205 to the deserializer 202, which is transmitted back to the car module 1. In this way, the car module 1 can display the data collected by the vehicle-mounted LED display system on the center screen for the user to check.

[0065] In one example, as shown in FIG. 2, the master module 2 can further include a sensor 205, which is connected to the control chip 201, and is used to monitor the running state of the vehicle-mounted LED display system. The sensor 205 can include one or more of a temperature sensor, a pressure sensor, a voltage sensor, etc., and can detect the temperature, pressure, voltage, etc. of the vehicle-mounted LED display system. Figure 9As shown, the LED display panel 301 includes a decoding chip 3011, a driving chip 3012, and a lamp bead 3013. The decoding chip 3011 and the driving chip 3012 are respectively connected with the control chip 201 (for example, an FPGA), and receive the first display data sent by the control chip 201. The first display data can include RGB data and control driving signals (for example, ABCDE row signals, latch signals, OE enable signals, Gclk global clock signals, Dclk pixel clock signals, etc.). The decoding chip 3011 receives the ABCDE row signals sent by the control chip 201, and performs row scanning on the lamp panel according to the ABCDE row signals. The driving chip 3012 receives the control driving signals and the RGB data sent by the control chip 201, such as the latch signals, the OE enable signals, the Gclk global clock signals, the Dclk pixel clock signals, etc., and realizes the lighting control on each 3013 in the lamp panel, so that the lamp panel presents the pattern of the display material under the control of the decoding chip 3011 and the driving chip 3012.

[0066] In an embodiment, the vehicle-mounted LED display system can also detect whether there is a bad point in the LED display panel (that is, whether the lamp bead 3013 in the LED display panel 301 is short-circuited or open-circuited) by itself. For example, after the control chip 201 receives the detection instruction sent by the car module 1, it can control each LED display panel 301 to feed back the lamp panel information, and determine the bad point information of the LED display panel 301 according to the lamp panel information.

[0067] For example, the lamp panel information can include the number of bits displayed by each lamp bead 3013 in the LED display panel 301. For example, in the first display data sent by the control chip 201 to the LED display panel 301, each lamp bead 3013 needs to display 8 bits (bits) of RGB data. If the RGB data displayed by a certain lamp bead 3013 in the lamp panel information returned by the LED display panel 301 is 8 bits, the lamp bead 3013 is normal, and if the RGB data displayed by the lamp bead 3013 is less than or greater than 8 bits, the lamp bead 3013 is a bad point in the LED display panel 301. The bad point information generated by the control chip 201 can include the number of bad points existing in each LED display panel 301, and can also include the location of each bad point. When the number of bad points exceeds a certain value, obviously affecting the display function of the LED display panel, the bad point information can also include prompt information (for example, prompting the user to replace the LED display panel in time). Then, the control chip 201 sends the bad point information to the deserializer 202, and the deserializer 202 returns the bad point information to the car module 1. The car module can display the bad point information detected by the vehicle-mounted LED display system on the central control screen for the user to refer to.

[0068] The LED display panel 301 provided in each group in the embodiment of the present application includes a plurality of LED display panels 301. When the LED display panel 301 is working, the LED display panel 301 at the edge position has a problem of large current loss due to the long connection line between the LED display panel 301 at the edge position and the master control module 2, thereby causing poor brightness and poor bright color display effect of the LED display panel 301 at the edge position. In order to avoid the problem of low display effect of the LED display panel 301 at the edge position, the vehicle-mounted LED display system provided in the present application can further set a corresponding digital chip 206 for each LED display panel 301, and the digital chip 206 can perform signal enhancement on the signal transmitted between the control chip 201 and the corresponding LED display panel 301, so as to enhance the current intensity transmitted between the master control module 2 and each LED display panel 301. Figure 10 The vehicle-mounted LED display system provided in the present application can further set a corresponding digital chip 206 for each LED display panel 301, and the digital chip 206 can perform signal enhancement on the signal transmitted between the control chip 201 and the corresponding LED display panel 301, so as to enhance the current intensity transmitted between the master control module 2 and each LED display panel 301.

[0069] Optionally, the digital chip 206 can be a 74HC245 chip.

[0070] In one example, the LED display panel 301 can further include a storage chip 3014 as shown in Figure 11 Each LED display panel 301 is provided with the storage chip 3014, and the storage chip 3014 is used to store the correction data (including the brightness and color of the lamp bead 3013 in the LED display panel 301) of the LED display panel 301.

[0071] Optionally, the storage chip 3014 can be a Flash chip. Since the Flash chip realizes communication with other devices through a serial peripheral interface (SPI) bus, and each group of LED display panels 301 provided in the embodiment of the present application includes a plurality of LED display panels 301, if the storage chip 3014 of each LED display panel 301 is directly connected with the master control module 2, the master control module 2 needs to set a large number of pins, and the manufacturing process is complicated.

[0072] Therefore, in order to reduce the manufacturing process, the master control module 2 provided in the embodiment of the present application can further include a storage chip 3014 as shown in Figure 12The data selector 207 is shown to be connected with the storage chip 3014 of each LED display panel 301 through the Flash bus respectively, so that the host module 2 can read the correction data in the storage chip 3014 in the form of data selection through the data selector 207. For example, if it is found in the use process that the brightness of a part of the LED display panel 301 in a certain group is abnormal, the correction data (i.e. the brightness of the lamp bead 3013) in the storage chip 3014 of the LED display panel 301 with abnormal brightness can be read through the data selector 207, and the brightness of the LED display panel 301 is adjusted according to the brightness, for example: the current intensity applied to the lamp bead 3013 in the LED display panel 301 is increased or decreased.

[0073] In one example, as Figure 13 The vehicle-mounted LED display system provided by the embodiment of the present application can further include a power module 4, the power module 4 is connected with the car module 1, the vehicle-mounted battery 5 and the host module 2 respectively, and the power module 4 is used to control the vehicle-mounted battery 5 to supply power to the host module 2 according to the enable signal sent by the car module 1, so as to start the host module 2.

[0074] The vehicle-mounted LED display system provided by the embodiment of the present application uses the LED display panel 301 to replace the traditional vehicle lamp to indicate the vehicle state, can display the vehicle condition information (such as the driving state of the vehicle, the front vehicle condition, the internal state of the vehicle, etc.) in the form of image based on the car signal, so as to realize more flexible vehicle lamp indication. And the vehicle lamps at different positions can be realized by splicing multiple LED display panels 301, so that the vehicle lamps at different positions can realize high-resolution image display. Therefore, the vehicle-mounted LED display system provided by the present application can realize vehicle lamp indication through more rich and higher resolution pictures.

[0075] It is worth noting that the vehicle-mounted LED display system provided by the present application can include two groups of LED display panels 301 (i.e. two vehicle lamps 3), so that the vehicle applying the vehicle-mounted LED display system can display more picture information. For example, when the vehicle-mounted LED display system is applied to a new energy vehicle, one of the vehicle lamps 3 can be used to display vehicle condition and road condition information, and the other vehicle lamp 3 can display charging information when the new energy vehicle is charging. For another example, when the vehicle-mounted LED display system is applied to a bus or other commercial vehicle, one of the vehicle lamps 3 can be used to display station, vehicle condition and road condition information, and the other vehicle lamp 3 can display advertising information, so that the vehicle can display key information such as station information, and also realize the purpose of commercial promotion.

[0076] It should be understood that the term "embodiment" mentioned throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, the various embodiments throughout the specification do not necessarily refer to the same embodiment. In addition, the specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. It should be understood that the size of the sequence number of each process described above does not mean the order of execution, and the execution order of each process should be determined according to its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0077] In the specification of the present application, the term "one embodiment" or "some embodiments" means that the specific features, structures or characteristics described in connection with the embodiment are included in one or more embodiments of the present application. Therefore, the phrases "in one embodiment", "in some embodiments", "in other some embodiments", "in further some embodiments" and the like appearing in different places in the specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized. The terms "include", "contain", "have" and their variants mean "include but not limited to", unless otherwise specifically emphasized.

[0078] It should also be understood that in the present application, "when", "if" and "when" refer to the corresponding processing of the UE or the base station under certain objective conditions, not the time limit, and do not require the UE or the base station to have a judgment action when implementing, nor does it mean that there are other limitations.

[0079] Those of ordinary skill in the art can understand that the various numbers such as first, second, etc. involved in the present application are only for the convenience of description and do not limit the scope of the embodiments of the present application, nor do they represent the order of precedence.

[0080] In the present application, the element expressed by the singular is intended to represent "one or more", not "one and only one", unless otherwise specified. In the present application, "at least one" is intended to represent "one or more" and "multiple" is intended to represent "two or more" unless otherwise specified.

[0081] The term "at least one of" or "at least one of" in the present application means all or any combination of the listed items, for example, "at least one of A, B and C" can mean six cases of A alone, B alone, C alone, A and B together, B and C together, and A, B and C together, where A can be singular or plural, B can be singular or plural, and C can be singular or plural.

[0082] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions recorded in the above embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A vehicle-mounted LED display system, characterized by, include: The vehicle infotainment module, main control module, and multiple LED display panels are provided. The main control module is electrically connected to both the vehicle infotainment module and the LED display panels. The LED display panels are located on the exterior of the vehicle. The vehicle infotainment module is used to send vehicle infotainment signals to the main control module; The main control module is used to generate first display data corresponding to the LED display panel based on the vehicle system signal, and send the first display data to the corresponding LED display panel; The LED display panel is used to display an image based on the received first display data; The main control module includes a control chip and a deserializer. The deserializer is connected to the vehicle infotainment module, and the control chip is connected to the LED display panel. The deserializer is used to decode the vehicle signal sent by the vehicle module into a low-voltage differential signal and send it to the control chip. The control chip is used to generate the first display data corresponding to the LED display panel based on the low-voltage differential signal of the received vehicle system signal, and send the first display data to the LED display panel; wherein, each LED display panel is provided with a corresponding digital chip, which can enhance the signal transmitted between the control chip and the corresponding LED display panel to enhance the current intensity transmitted between the main control module and each LED display panel; The main control module includes a storage component that stores the topology of multiple LED display panels and preset image data. The topology refers to the connection method and wiring between the individual LED beads in the multiple LED display panels. The vehicle control signal is a vehicle control signal used to indicate the vehicle status. The step of generating the first display data corresponding to each LED display panel based on the vehicle control signal includes: determining the target image data corresponding to the vehicle control signal in the image data; and generating the first display data corresponding to each LED display panel based on the topology and the target image data.

2. The vehicle-mounted LED display system of claim 1, wherein, The vehicle infotainment module and the deserializer are connected via a serial bus linked by a tablet display.

3. The vehicle-mounted LED display system of claim 2, wherein, The deserializer is equipped with a high-speed data connector, which is connected to the serial bus of the flat panel display.

4. The vehicle-mounted LED display system of claim 1, wherein, The main control module includes a storage component, which stores the topology of the LED display panel. The vehicle infotainment signal is a vehicle infotainment video signal. Generating the first display data corresponding to the LED display panel based on the vehicle infotainment signal includes: Based on the topology and the vehicle video signal, the first display data corresponding to the LED display panel is generated.

5. The vehicle-mounted LED display system of any one of claims 1-4, wherein, The main control module includes an interface component for connecting external debugging equipment. The debugging equipment is used to debug the display function of the vehicle-mounted LED display system. The main control module is also used to control at least one group of LED display panels to display images according to the debugging signals sent by the debugging equipment.

6. The vehicle-mounted LED display system of any one of claims 1-4, wherein, The master module comprises a temperature sensor configured to detect a temperature of the vehicle-mounted LED display system. The master module is further configured to control the LED display panel to stop image display when the temperature is greater than a preset threshold.

7. The vehicle-mounted LED display system according to any one of claims 1-4, wherein The car module is further configured to send a detection instruction to the deserializer. The deserializer is further configured to decode the detection instruction into a low-voltage differential signal and send the low-voltage differential signal to the control chip. The control chip is further configured to control the LED display panel to return lamp panel information according to the low-voltage differential signal of the detection instruction, determine bad point information of the LED display panel according to the lamp panel information, and send the bad point information to the deserializer. The deserializer is further configured to return the bad point information to the car module.

8. The vehicle-mounted LED display system of claim 7, wherein, The master module further comprises a temperature sensor and a voltage sensor, which are connected to the control chip respectively, the temperature sensor is configured to detect a temperature of the vehicle-mounted LED display system, and the voltage sensor is configured to detect a voltage of the vehicle-mounted LED display system. The control chip is further configured to collect data detected by the temperature sensor and the voltage sensor according to the low-voltage differential signal of the detection instruction, and send the data detected by the temperature sensor and the voltage sensor to the deserializer. The deserializer is further configured to return the data detected by the temperature sensor and the voltage sensor to the car module.

9. The vehicle-mounted LED display system of any one of claims 1-4, wherein, The vehicle-mounted LED display system further comprises a power module, which is connected to a vehicle-mounted battery, the car module and the master module respectively. The car module is further configured to send an enable signal to the power module. The power module is configured to control the vehicle-mounted battery to supply power to the master module when the enable signal is received.

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