Vehicle projection control system, vehicle projection lamp and vehicle

Abstract

The utility model relates to the technical field of automobile lamps, in particular to a vehicle projection control system, a vehicle projection lamp and a vehicle. The control system comprises an upper computer; the power supply module is connected with an input power supply signal; the upper computer and the power supply module are connected with the communication module; the communication module and the power supply module are connected with the control module; the control module and the power supply module are connected with the storage module; and the control module and the power supply module are connected with the projection lamp module. According to the vehicle projection control system, local video playing can be achieved by locally storing videos to the storage module in advance, the upper computer and local playing projection information can be compatible at the same time, the projection diversity of the projection lamp module is achieved, the system structure is simple, and the video transmission real-time performance is good.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile lamps, in particular to a vehicle projection control system, a vehicle projection lamp and a vehicle thereof. Background Art

[0002] After years of technological advancement, automotive lighting has evolved from simple illumination to enhanced lighting effects, and then to intelligent lighting, with increasingly sophisticated control. The competition among OEMs in automotive lighting digital display technology is also intensifying, preparing for the era of automated and intelligent vehicles. Projection display technology, a current trend in automotive lighting displays, effectively adapts to the customization and intelligent needs of vehicles. This technology transmits customized videos through the vehicle's multimedia head unit and then projects them onto the ground. This video enhances vehicle interaction, improves the user experience, and makes cars more intelligent.

[0003] Prior art provides an in-vehicle Ethernet transmission system for vehicle projection lights. This system utilizes an S32K3 series MCU paired with the TJA1101B, ensuring the required bandwidth for video transmission and ensuring stable and smooth video transmission. In-vehicle Ethernet applications typically utilize a host computer (such as a vehicle multimedia host) to send video data to the control system. The MCU then processes the data and sends it to the back-end projection module. This lacks guaranteed fault feedback when projection anomalies occur, and the real-time nature of video transmission is poor. Furthermore, when communication anomalies occur, the projection module cannot play videos, significantly impacting the flexibility of the vehicle projection system and resulting in a poor user experience. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art.

[0005] To this end, the utility model provides a vehicle projection control system, a vehicle projection lamp and a vehicle thereof.

[0006] A vehicle projection control system according to an embodiment of the present invention includes:

[0007] Host computer

[0008] A power module connected to an input power signal;

[0009] A communication module, the host computer and the power module are both connected to the communication module;

[0010] A control module, wherein the communication module and the power module are both connected to the control module;

[0011] A storage module, the control module and the power module are both connected to the storage module;

[0012] and a projection lamp module, wherein the control module and the power supply module are both connected to the projection lamp module.

[0013] The beneficial effects of the present invention are as follows: the vehicle projection control system provided by the present invention stores projection information in advance in a storage module for local playback, is compatible with both host computer and local projection playback, realizes the diversity of projection of the projection lamp module, has a simple system structure, and has good real-time video transmission. In addition, it improves the flexibility of vehicle light projection and provides a good user experience.

[0014] According to an embodiment of the present invention, the communication module is an Ethernet module, and the model of the Ethernet module is TJA1103A.

[0015] According to one embodiment of the present invention, the power module includes a power protection unit and an SBC chip;

[0016] The input end of the power protection unit is connected to the input power signal;

[0017] The output end of the power protection unit is connected to the power input pin of the SBC chip. The SBC chip outputs at least two operating voltages, namely a 5V operating voltage and a 3.3V operating voltage. The 5V operating voltage is configured to power the projection lamp module, and the 3.3V operating voltage is configured to power the communication module, the control module, and the storage module.

[0018] According to an embodiment of the present invention, the control module and the storage module are connected via a QSPI bus.

[0019] According to an embodiment of the present invention, the control module and the projection lamp module are connected via a UART bus.

[0020] According to an embodiment of the present invention, the light source in the projection lamp module is a light emitting diode.

[0021] According to one embodiment of the present invention, the light emitting diode is a Micro LED.

[0022] A vehicle projection lamp according to an embodiment of the present invention includes the vehicle projection control system described above.

[0023] A vehicle according to an embodiment of the present invention includes the vehicle projection lamp described above.

[0024] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The objectives and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description, claims and drawings.

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] Figure 1 It is a structural diagram of the present utility model.

[0028] Figure 2 This is a schematic diagram of a logic gate circuit in the Ethernet module of the present utility model.

[0029] In the figure: 1. Host computer; 2. Power module; 3. Communication module; 4. Control module; 5. Storage module; 6. Projection lamp module; 21. Power protection unit; 22. SBC chip. DETAILED DESCRIPTION

[0030] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0032] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0033] Example 1

[0034] An embodiment of the present application provides a vehicle projection control system, comprising: a host computer 1, a power module 2, a communication module 3, a control module 4, a storage module 5, and a projection lamp module 6. The power module 2 is connected to an input power signal; the host computer 1 and the power module 2 are both connected to the communication module 3; the communication module 3 and the power module 2 are both connected to the control module 4; the control module 4 and the power module 2 are both connected to the storage module 5; and the control module 4 and the power module 2 are both connected to the projection lamp module 6. The power module 2 processes the input power signal and provides operating voltage to each module. The host computer 1 sends projection information to be transmitted to the communication module 3. The communication module 3 receives the projection information and transmits it to the control module 4. The control module 4 receives the projection information and transmits it to the projection lamp module 6. The projection lamp module 6 projects the projection information. In addition, the storage module 5 is used to store the projection information and can also transmit the stored projection information to the control module 4 via the storage module 5. The control module 4 receives the projection information and transmits it to the projection lamp module 6 for projection. By locally storing the projection information in advance in the storage module 5 to realize local playback, it is possible to be compatible with both the projection playback of the host computer 1 and the local mode, thereby realizing the diversity of projection of the projection lamp module 6.

[0035] It should be noted that when the communication module 3 communicates abnormally, the storage module 5 can transmit the locally stored projection information to complete the projection playback, thereby improving the flexibility of the car light projection and providing a good user experience.

[0036] In this embodiment, the projection information includes one or more of video, image, or text.

[0037] In the embodiment, the communication module 3 is an Ethernet module, and the model of the Ethernet module is TJA1103A. The TJA1103A chip is compatible with both MII and RMII protocols. In this embodiment, the MII standard Ethernet protocol is used for communication, which can meet the transmission data of 100Mbps. The TJA1103A chip can perform time synchronization, and there is almost no time difference between the interaction with the host computer 1, and the data transmission is real-time. The TJA1103A chip has its own fault diagnosis, and it communicates serially with the control module 4 through MDC and MDIO, so that the host computer 1 can obtain the status information of the TJA1103A chip, thereby achieving the purpose of monitoring the TJA1103A chip. Figure 2 As shown, the Ethernet module also includes a logic gate circuit, which is connected to the control module 4 and can quickly recover when the Ethernet is in a dormant state. For specific circuit design, see Figure 2 ,RESET_MCU is the reset signal of control module 4, TJA1101B_RSTN is the reset signal output by control module 4 to the Ethernet circuit. The pull-up setting is completed in the control module to maintain the valid state. The two signals pass through an AND logic gate signal to form a complete reset signal at the TJA1103A end.

[0038] In this embodiment, the power module 2 includes a power protection unit 21 and an SBC chip 22. The input of the power protection unit 21 is connected to the input power signal; the output of the power protection unit 21 is connected to the power input pin of the SBC chip 22. The SBC chip 22 outputs at least two operating voltages: 5V and 3.3V. The 5V operating voltage is configured to power the projection lamp module 6, and the 3.3V operating voltage is configured to power the communication module 3, control module 4, and storage module 5. The SBC chip 22 uses the NXP FS26 series automotive safety system basic chip.

[0039] In the embodiment, the control module 4 and the storage module 5 are connected via a QSPI bus to achieve fast data transmission. Generally, the SPI rate is 133 MHz, and the QSPI bus rate is 4 times that of the SPI. Therefore, the projection information transmission capability is faster, which can make up for the time difference in data transmission between the modules.

[0040] In an embodiment, the control module 4 and the projection lamp module 6 are connected via a UART bus to ensure that the projection information transmitted from the storage module 5 and the communication module 3 to the control module 4 can be effectively transmitted.

[0041] In the embodiment, the model of the control module 4 is NXP's S32K3 series microcontroller. The control module 4 and the storage module 5 are both powered by 3.3V. The storage module 5 does not need to be equipped with a level conversion chip, which avoids the problem that the level conversion chip will affect the transmission quality during video transmission. The system has good stability and good real-time projection.

[0042] In the embodiment, the light source in the projection lamp module 6 is a light-emitting diode, which is a Micro LED. Micro LED has a small size and high integration, and has certain advantages in energy consumption, service life, thermal stability and response speed. Several Micro LEDs are assembled on a driving panel to form a high-density LED array, which can accurately project video, making the projection clearer than ordinary light-emitting diodes.

[0043] Example 2

[0044] An embodiment of the present application provides a vehicle projection lamp, including the above vehicle projection control system.

[0045] Example 3

[0046] An embodiment of the present application provides a vehicle, comprising the vehicle projection lamp as described above.

[0047] In summary, the vehicle projection control system of the present invention stores projection information locally in advance in the storage module 5 for local playback, and is compatible with both host computer 1 and local projection playback, achieving diverse projections from the projection lamp module 6. The system structure is simple, and video transmission is real-time. Furthermore, the flexibility of vehicle light projection is improved, providing a good user experience.

[0048] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative use of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0049] Based on the above-described preferred embodiments of the present invention, and in accordance with the above description, relevant personnel are fully capable of making various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A vehicle projection control system, characterized in that: include: Host computer (1); A power module (2) connected to an input power signal; A communication module (3), wherein the host computer (1) and the power supply module (2) are both connected to the communication module (3); the communication module (3) is an Ethernet module, and the model of the Ethernet module is TJA1103A; the Ethernet module includes a logic gate circuit, and the logic gate circuit is connected to the control module (4), and can quickly recover when the Ethernet enters a dormant state; A control module (4), the communication module (3) and the power module (2) are both connected to the control module (4); A storage module (5), the control module (4) and the power module (2) are both connected to the storage module (5); and a projection lamp module (6), wherein the control module (4) and the power module (2) are both connected to the projection lamp module (6).

2. The vehicle projection control system according to claim 1, wherein: The power supply module (2) includes a power supply protection unit (21) and an SBC chip (22); The input end of the power protection unit (21) is connected to the input power signal; The output end of the power protection unit (21) is connected to the power input pin of the SBC chip (22). The SBC chip (22) outputs at least two operating voltages, namely a 5V operating voltage and a 3.3V operating voltage. The 5V operating voltage is configured to supply power to the projection lamp module (6), and the 3.3V operating voltage is configured to supply power to the communication module (3), the control module (4), and the storage module (5).

3. The vehicle projection control system according to claim 1, wherein: The control module (4) and the storage module (5) are connected via a QSPI bus.

4. The vehicle projection control system according to claim 1, wherein: The control module (4) and the projection lamp module (6) are connected via a UART bus.

5. The vehicle projection control system according to claim 1, wherein: The light source in the projection lamp module (6) is a light emitting diode.

6. The vehicle projection control system according to claim 5, characterized in that: The light emitting diode is a Micro LED.

7. A vehicle projection lamp, characterized in that: The vehicle projection control system comprises the vehicle projection control system according to any one of claims 1 to 6.

8. A vehicle, characterized in that: The vehicle projection lamp according to claim 7 is included.

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