Multifunction interface integrated module and vehicle

Abstract

The utility model provides a kind of multifunctional interface integrated module and vehicle, module includes: interface convergence unit, for centralized access or output central control screen peripheral signal and / or vehicle side signal;Signal processing unit, including audio processing subunit and at least two video processing channels, audio processing subunit is used to select output to multiple audio signals, and at least two video processing channels are used to shunt processing to different types of external video signals;Master control processing unit, for receiving the video signal output by at least two video processing channels, and processing at least one of the display, touch, communication, audio and video data of central control screen;Vehicle body control unit, for power management to multifunctional interface integrated module, for receiving or processing vehicle side control signal;Interface convergence unit, signal processing unit, master control processing unit and vehicle body control unit are integrated on the same circuit board.Using the above technical scheme, the interface integration degree can be improved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle electronic equipment technology, specifically to a multi-functional interface integrated module and a vehicle. Background Technology

[0002] With the development of intelligent, connected, and electronic cockpits in automobiles, the central control screen in cars is no longer just used to display navigation or multimedia information. Instead, it is gradually taking on multiple functions such as vehicle information display, touch interaction, audio playback, video display, reversing camera, 360-degree panoramic imaging, mobile communication, wireless connection, positioning, peripheral protocol communication, and vehicle control signal interaction.

[0003] As the number of signal types increases, the number of interfaces also increases, and they are more scattered, resulting in complex wiring harnesses and inconvenient installation and maintenance. Utility Model Content

[0004] In view of this, the present invention provides a multi-functional interface integration module and vehicle, which can improve the interface integration of vehicle central control equipment.

[0005] In a first aspect, this utility model provides a multi-functional interface integration module, comprising: Interface aggregation unit, used for centralized access or output of signals from peripheral devices on the central control screen and / or vehicle-side signals; A signal processing unit is connected to the interface aggregation unit. The signal processing unit includes an audio processing subunit and at least two video processing channels. The audio processing subunit is used to select and output multiple audio signals, and the at least two video processing channels are used to perform split processing on different types of external video signals. The main control processing unit is connected to the interface aggregation unit and the signal processing unit respectively, and is used to receive video signals output from the at least two video processing channels, and process at least one of the display, touch, communication, audio and video data of the central control screen; The body control unit is connected to the interface aggregation unit, the signal processing unit and the main control processing unit respectively, and is used to manage the power supply of the multi-functional interface integrated module and to receive or process vehicle-side control signals. The interface aggregation unit, the signal processing unit, the main control processing unit, and the body control unit are integrated on the same circuit board.

[0006] Optionally, the interface aggregation unit includes: The display touch interface area is used to receive display screen signals and touch screen signals, and is connected to the main control processing unit; The audio / video interface area is used to receive external video signals, external audio signals, and output vehicle audio signals, and is connected to the signal processing unit. The communication interface area is used to access at least two of the following: USB signal, SIM card signal, eSIM signal, wireless communication antenna signal, and positioning antenna signal, and is connected to the main control processing unit. The vehicle control interface area is used to receive at least two of the following: panel button signals, knob signals, steering wheel control signals, steering detection signals, and microphone signals, and is connected to the body control unit and / or the main control processing unit.

[0007] Optionally, the main control processing unit includes an in-vehicle multimedia main control module; The in-vehicle multimedia main control module includes: The display signal interface is connected to the display screen interface in the interface aggregation unit; Touch signal interface, connected to the touch screen interface in the interface aggregation unit; The first video input interface is connected to a video processing channel in the signal processing unit; The second video input interface is connected to another video processing channel in the signal processing unit, so that different types of external video signals are input to the vehicle multimedia main control module through different video processing channels. An audio output interface is connected to the audio processing subunit in the signal processing unit, so that the audio signal output by the vehicle multimedia main control module can be used as an optional audio source. The control communication interface is connected to the vehicle body control unit, enabling the in-vehicle multimedia main control module to interact with the vehicle body control unit for control information exchange.

[0008] Optionally, the audio processing subunit includes an audio selection module and an audio output module; The audio selection module has multiple audio input terminals, which are respectively used to receive at least two of the following: the main control audio output by the main control processing unit, the radio audio output by the radio module, and the external audio input by the interface aggregation unit. The output terminal of the audio selection module is connected to the audio output module, and the audio output module includes a first audio output path and a second audio output path. The first audio output path is used to output multiple analog audio signals to the external power amplifier interface, and the second audio output path is used to output multiple horn drive signals to the original car horn interface. The audio selection module and the audio output module work together to enable the multi-functional interface integrated module to select from a variety of audio input sources and be compatible with external amplifier output and original car speaker output.

[0009] Optionally, the at least two video processing channels include a first video processing channel and a second video processing channel; The first video processing channel is connected between the first type of video interface in the interface aggregation unit and the first video input interface of the main control processing unit, and is used to receive and process 360 panoramic video signals. The second video processing channel is connected between the second type of video interface in the interface aggregation unit and the second video input interface of the main control processing unit, and is used to receive and process at least one of the reversing video signal, AUX video signal and AR video signal; The first video processing channel and the second video processing channel are respectively communicatively connected to the main control processing unit and controlled by the main control processing unit; Among them, the 360-degree panoramic video signal, the reversing video signal, the AUX video signal, and the AR video signal are processed through different video processing channels and then input to different video input interfaces of the main control processing unit to form a split access and split processing structure for external video signals.

[0010] Optionally, the multi-functional interface integration module further includes: The radio module is connected to the main control processing unit via a control communication line and to the audio processing subunit via an audio output line, enabling the main control processing unit to control the working state of the radio module, and the radio audio output by the radio module can be input to the audio processing subunit as an optional audio source. The eSIM module is connected to the eSIM interface of the main control processing unit. The interface aggregation unit is also provided with an external SIM card interface, so that the main control processing unit can be compatible with both built-in eSIM and external SIM card. The authentication module is connected to the main control processing unit via a control communication line and is used to provide peripheral authentication communication to the main control processing unit. The radio module, the eSIM module, and the authentication module are connected to the main control processing unit and / or the signal processing unit via audio lines, card interface lines, or control communication lines, respectively, to form an integrated access structure for radio reception, communication card, and authentication functions.

[0011] Optionally, the body control unit includes a microprocessor and a power conversion module; The microprocessor is communicatively connected to the main control processing unit and is used to transmit control information between the main control processing unit and the vehicle-side control signal. The microprocessor is also connected to the vehicle control interface in the interface aggregation unit, and is used to receive at least two of the following: panel button signals, knob signals, original vehicle steering wheel control signals, and steering detection signals; The power conversion module includes a vehicle power input terminal, a first power conversion unit, and a second power conversion unit. The vehicle power input terminal is used to connect to the vehicle's constant power supply. The first power conversion unit is used to convert the vehicle's constant power supply into a first working power supply. The second power conversion unit is used to convert the first working power supply into a second working power supply. The microprocessor is connected to the enable control terminal of the first power conversion unit and / or the second power conversion unit, and is used to control the power conversion module to supply power to the main control processing unit and the signal processing unit according to the vehicle status, button status or control instructions of the main control processing unit.

[0012] Optionally, the interface aggregation unit includes multiple external connectors disposed on the same circuit board; The plurality of external connectors include at least three of the following: power and speaker connectors, panoramic and function connectors, USB and protocol box connectors, display connectors, touch screen connectors, and button / knob / microphone connectors. The power supply and horn connector is used to connect to the vehicle's power supply and output a horn signal. The panoramic and functional connector is used to access at least two of the following: 360 panoramic video signals, external video signals, external SIM card signals, and audio signals; The USB and protocol box connector is used to access at least one of USB signals, external protocol box serial port signals, and original vehicle camera signals. The display connector and the touch screen connector are respectively connected to the main control processing unit; The button, knob, and microphone connector is used to receive at least one of button signals, knob signals, and microphone signals. The plurality of external connectors are connected to the main control processing unit, the signal processing unit and the body control unit respectively according to the signal type, to form a centralized external interface structure.

[0013] Optionally, the body control unit is configured to control the multi-function interface integrated module to enter the power-on state when it receives a vehicle start signal, a panel button signal, or a main control wake-up signal; The main control processing unit is configured to initialize the audio processing subunit and the at least two video processing channels in the signal processing unit after power-on; When the interface aggregation unit receives a reversing video signal, a 360-degree panoramic video signal, or a steering detection signal, the main control processing unit and / or the vehicle body control unit control the corresponding video processing channel to work and input the corresponding video signal to the main control processing unit. When the interface aggregation unit receives main control audio, radio audio or external audio, the main control processing unit and / or the vehicle body control unit control the audio processing subunit to select the corresponding audio source and output it to the speaker interface or external power amplifier interface. Among them, the vehicle-side control signal, external video signal and multiple audio signals are processed collaboratively by the body control unit, the main control processing unit and the signal processing unit to realize audio and video linkage control in the vehicle scenario.

[0014] Secondly, this utility model also provides a vehicle, including: a multi-functional interface integrated module as described in any of the foregoing embodiments.

[0015] Compared with the prior art, the technical solution of this utility model embodiment has the following advantages: The multi-functional interface integration module provided in this embodiment integrates the interface aggregation unit, signal processing unit, main control processing unit, and body control unit onto the same circuit board. This allows display, touch, audio, video, communication, power, and vehicle-side control signals to be centrally accessed and processed within the same interface integration module. Consequently, various types of central control screen peripheral signals, vehicle-side control signals, audio signals, and video signals can be centrally accessed, distributed, and processed by the main control unit within the same interface integration module. This reduces the complexity of the vehicle system wiring harness and improves the interface integration of the in-vehicle central control equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a multi-functional interface integration module provided in an embodiment of this utility model.

[0017] Figure 2 This is a schematic diagram of the structure of an interface aggregation unit provided in an embodiment of this utility model.

[0018] Figure 3 This is a schematic diagram of the structure of a main control processing unit provided in an embodiment of this utility model.

[0019] Figure 4 This is a schematic diagram of the structure of an audio selection module provided in an embodiment of this utility model.

[0020] Figure 5 This is a schematic diagram of the structure of an audio output module provided in an embodiment of this utility model.

[0021] Figure 6 This is a schematic diagram of the structure of a first video processing channel provided in an embodiment of the present invention.

[0022] Figure 7 This is a schematic diagram of the structure of a second video processing channel provided in an embodiment of the present invention.

[0023] Figure 8 This is a schematic diagram of the structure of a radio module provided in an embodiment of this utility model.

[0024] Figure 9 This is a schematic diagram of the structure of an eSIM module provided in an embodiment of this utility model.

[0025] Figure 10 This is a schematic diagram of the structure of an authentication module provided in an embodiment of this utility model.

[0026] Figure 11 This is a schematic diagram of the structure of an external connector provided in an embodiment of this utility model. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] See Figure 1 , Figure 1 This is a schematic diagram of the structure of a multi-functional interface integration module provided in an embodiment of the present invention. The multi-functional interface integration module includes: The interface aggregation unit 120 is used to centrally access or output signals from peripheral devices on the central control screen and / or signals from the vehicle side.

[0030] Among them, the peripheral signals of the central control screen can include display screen signals, touch screen signals, external video signals, external audio signals, USB signals, SIM card signals, eSIM signals, antenna signals, microphone signals, etc.

[0031] Vehicle-side signals may include vehicle power signals, panel button signals, knob signals, steering wheel control signals, steering detection signals, reversing trigger signals, etc.

[0032] The signal processing unit 130 is connected to the interface aggregation unit 120. The signal processing unit 130 includes an audio processing subunit 132 and at least two video processing channels (e.g., a first video processing channel 134 and a second video processing channel 136). The audio processing subunit 132 is used to select and output multiple audio signals, and the at least two video processing channels are used to perform split processing on different types of external video signals.

[0033] The main control processing unit 140 is connected to the interface aggregation unit 120 and the signal processing unit 130 respectively, and is used to receive video signals output from the at least two video processing channels and process at least one of the display, touch, communication, audio and video data of the central control screen.

[0034] The body control unit 150 is connected to the interface aggregation unit 120, the signal processing unit 130 and the main control processing unit 140 respectively, and is used to manage the power supply of the multi-functional interface integrated module and to receive or process vehicle-side control signals.

[0035] Among them, vehicle-side control signals are a part of vehicle-side signals. The interface aggregation unit is responsible for centrally accessing or outputting various vehicle-side signals. The body control unit receives, identifies, or processes the control-related parts from these signals for power supply management, status judgment, or vehicle-side interaction.

[0036] Specifically, vehicle-side signals are the general term for signals exchanged between the vehicle and other units, including power / wake-up signals, communication signals, status signals, feedback signals, and control signals; vehicle-side control signals are a type of signal that has a control function, such as ACC wake-up, reversing trigger, steering wheel buttons, gear position, and control commands issued by the body controller.

[0037] The interface aggregation unit 120, the signal processing unit 130, the main control processing unit 140, and the body control unit 150 are integrated on the same circuit board 110.

[0038] In this way, various types of central control screen peripheral signals, vehicle-side control signals, audio signals, and video signals can be centrally accessed, distributed, and processed by the main control unit within the same interface integration module.

[0039] Therefore, this embodiment does not simply mechanically stack several interfaces or modules on the same circuit board. Instead, it centrally accesses multiple types of external signals through an interface aggregation unit, selects, splits, or processes audio signals and different types of video signals through a signal processing unit, processes the core data of the central control screen through a main control processing unit, and realizes vehicle-side control signal processing and power supply management through a body control unit. Thus, an overall structure of centralized access, split processing, and main control processing is formed within the same interface integration module.

[0040] See Figure 2 , Figure 2 This is a schematic diagram of an interface aggregation unit provided in an embodiment of the present invention. The interface aggregation unit 120 may include a display touch interface area 122, an audio / video interface area 124, a communication interface area 126, and a vehicle control interface area 128, which are partitioned according to signal type. The display touch interface area 122 is used to receive display screen signals and touch screen signals, and is connected to the main control processing unit. The display touch interface area 122 may include a display screen interface and a touch screen interface. The display screen interface can be a MIPI display screen interface or other display interfaces suitable for in-vehicle central control screens. The touch screen interface is used to connect to the touch screen to transmit touch signals to the main control processing unit.

[0041] The audio / video interface area 124 is used to receive external video signals, external audio signals, and output vehicle audio signals, and is connected to the signal processing unit 130. The audio / video interface area 124 may include a first type of video interface, a second type of video interface, an external audio input interface, and a vehicle audio output interface. The first type of video interface can be used to receive 360-degree panoramic video signals. The second type of video interface can be used to receive reversing video signals, AUX video signals, AR video signals, DSM video signals, or other external video signals. The external audio input interface can be used to receive AUX audio signals. The vehicle audio output interface can be used to connect an external amplifier or the original vehicle speakers.

[0042] The communication interface area 126 is used to access at least two of the following: USB signal, SIM card signal, eSIM signal, wireless communication antenna signal, and positioning antenna signal, and is connected to the main control processing unit 140. The communication interface area 126 may include a USB interface, an external SIM card interface, an eSIM interface, a wireless communication antenna interface, and a positioning antenna interface. The wireless communication antenna interface may include a BT / WiFi antenna interface and a 4G antenna interface. The positioning antenna interface may include a GPS antenna interface.

[0043] The vehicle control interface area 128 is used to receive at least two of the following: panel button signals, knob signals, steering wheel control signals, steering detection signals, and microphone signals, and is connected to the body control unit 150 and / or the main control processing unit 140.

[0044] The vehicle control interface area 128 may include a panel button interface, a knob interface, a steering wheel control interface, a steering detection interface, and a microphone interface.

[0045] Different types of external signals are accessed in sections via the interface aggregation unit and then transmitted to the signal processing unit, the main control processing unit, and the body control unit, respectively, forming an interface integration structure that accesses signals in layers according to their type. This structure reduces cluttered interface layout and facilitates circuit board routing planning, external wiring harness connections, and subsequent fault diagnosis.

[0046] In some embodiments, the main control processing unit 140 includes an in-vehicle multimedia main control module. This module is used to perform core processing functions in the central control screen system, including display output, touch input processing, communication data processing, audio processing, video processing, and peripheral control.

[0047] In this embodiment, the vehicle multimedia main control module includes: a display signal interface connected to the display screen interface in the interface aggregation unit; a touch signal interface connected to the touch screen interface in the interface aggregation unit; a first video input interface connected to one video processing channel in the signal processing unit; a second video input interface connected to another video processing channel in the signal processing unit, enabling different types of external video signals to be input to the vehicle multimedia main control module via different video processing channels; an audio output interface connected to the audio processing subunit in the signal processing unit, enabling the audio signal output by the vehicle multimedia main control module to serve as an optional audio source; and a control communication interface connected to the body control unit, enabling the vehicle multimedia main control module to interact with the body control unit for control information exchange.

[0048] The display signal interface can be a MIPIDSI interface, and the first video input interface and the second video input interface can be MIPICSI interfaces, or other interfaces suitable for vehicle video input.

[0049] The communication interface may include one or more of the following: USB interface, SIM card interface, eSIM interface, wireless communication interface, and positioning interface.

[0050] The control communication interface connects to the body control unit, enabling the main control processing unit to interact with the body control unit for control information exchange. For example, the main control processing unit can receive button, knob, steering wheel control, or steering detection information sent by the microprocessor (MCU) through the control communication interface, and can also send power control, peripheral control, or operating status information to the microprocessor.

[0051] See Figure 3 , Figure 3 This is a schematic diagram of the structure of a main control processing unit provided in an embodiment of this utility model.

[0052] The main control processing unit can be an in-vehicle multimedia main control module of model SC200J_SC200P, or it can be other in-vehicle main control platforms with display, touch, audio and video, and communication processing capabilities. That is to say, this application does not necessarily limit itself to a specific main control model; the specific model is only used to illustrate one possible implementation.

[0053] For more details regarding the main control processing unit of the SC200J_SC200P models, please refer to the relevant examples in the existing solutions.

[0054] In some embodiments, the audio processing subunit includes an audio selection module and an audio output module; the audio selection module has multiple audio input terminals, which are respectively used to receive at least two of the following: master control audio output by the master control processing unit, radio audio output by the radio module, and external audio input by the interface aggregation unit; the output terminal of the audio selection module is connected to the audio output module, and the audio output module includes a first audio output path and a second audio output path; the first audio output path is used to output multiple analog audio signals to the external power amplifier interface, and the second audio output path is used to output multiple speaker drive signals to the original car speaker interface; wherein, the audio selection module and the audio output module cooperate to enable the multi-functional interface integrated module to select among multiple audio input sources and be compatible with both external power amplifier output and original car speaker output methods.

[0055] The main control audio can be navigation audio, media audio, system prompt audio, or Bluetooth audio output by the main control processing unit. The radio audio can be broadcast audio output by the radio module. The external audio can be AUX audio or other external audio input signals.

[0056] The audio selection module selects one audio signal to output to the audio output module based on the control signal. This control signal can come from the main control processing unit, the body control unit, or be generated jointly by both.

[0057] The first audio output path can output at least two analog audio signals from the front left, front right, rear left, rear right, and subwoofer to adapt to vehicle audio systems with external amplifiers.

[0058] The second audio output path can output signals from the front left, front right, rear left, and rear right speakers to adapt to vehicle audio systems that need to be directly connected to the original car speakers.

[0059] By combining the audio selection module and the audio output module, this embodiment can select from multiple audio input sources and is compatible with both external amplifier output and original car speaker output. Compared to solutions that only have a single audio input or output, this embodiment is more adaptable to the needs of different car models and different audio systems.

[0060] See Figure 4 and Figure 5 , Figure 4 This is a schematic diagram of the structure of an audio selection module provided in an embodiment of the present invention. Figure 5 This is a schematic diagram of the structure of an audio output module provided in an embodiment of this utility model.

[0061] The audio selection module can use a 4052 analog audio switching chip and its peripheral circuits, while the audio output module can use a 22448 audio power amplifier chip and its peripheral circuits.

[0062] The 4052 analog audio switching chip can select between at least two audio signals from the main control audio, radio audio, and external AUX audio, while the 22448 audio amplifier chip can output the selected audio signal to the external amplifier interface and / or the original car speaker interface.

[0063] In this embodiment, pin 13 (X) of the 4052 analog audio switching chip is connected to pin 19 (INL) of the 22448 audio power amplifier chip, and pin 3 (Y) of the 4052 analog audio switching chip is connected to pin 20 (INR) of the 22448 audio power amplifier chip.

[0064] The chip model mentioned above is only a specific embodiment. In other embodiments, other audio switching chips and audio output chips with the same or similar functions may also be used.

[0065] For more information on the 4052 analog audio switch chip and the 22448 audio amplifier chip, as well as the connection relationship between the 4052 analog audio switch chip, the 22448 audio amplifier chip, and the main control processing unit of the SC200J_SC200P model, please refer to the existing examples.

[0066] In some embodiments, the at least two video processing channels include a first video processing channel and a second video processing channel; the first video processing channel is connected between a first type of video interface in the interface aggregation unit and a first video input interface of the main control processing unit, and is used to receive and process 360-degree panoramic video signals; the second video processing channel is connected between a second type of video interface in the interface aggregation unit and a second video input interface of the main control processing unit, and is used to receive and process at least one of reversing video signals, AUX video signals, and AR video signals; the first video processing channel and the second video processing channel are respectively communicatively connected to the main control processing unit and controlled by the main control processing unit; wherein, the 360-degree panoramic video signal and at least one of the reversing video signal, AUX video signal, and AR video signal are processed through different video processing channels and then respectively input to different video input interfaces of the main control processing unit to form a split-path access and split-path processing structure for external video signals.

[0067] Specifically, the main control processing unit can configure the working status of the first video processing channel and the second video processing channel through the communication line, such as video format selection, input channel selection, image parameter configuration, enable or reset control, etc.

[0068] Through the above structure, the 360-degree panoramic video signal, along with at least one of the reversing video signal, AUX video signal, and AR video signal, are processed through different video processing channels and then input to different video input interfaces of the main control processing unit. Thus, this embodiment forms a split-path access and split-path processing structure for external video signals.

[0069] Compared with the solution of multiple external video signals sharing a single video processing channel, this embodiment has at least the following advantages: First, it can reduce channel occupancy conflicts between different video sources; second, different video processing chips or video processing parameters can be configured according to the video type; third, it can improve the ability to simultaneously adapt 360-degree panoramic video with video sources such as reversing, AUX, and AR; and fourth, it facilitates rapid video switching in vehicle scenarios.

[0070] See Figure 6 and Figure 7 , Figure 6 This is a schematic diagram of the structure of a first video processing channel provided in an embodiment of the present invention. Figure 7 This is a schematic diagram of the structure of a second video processing channel provided in an embodiment of the present invention.

[0071] The first video processing channel includes the TP2815 video processing chip and its peripheral circuits, and the second video processing channel includes the TP9951 video processing chip and its peripheral circuits.

[0072] The TP2815 video processing chip is used to process 360-degree panoramic video signals and is connected to the first MIPICSI interface of the main control processing unit 140. The TP9951 video processing chip is used to process at least one of reversing video signals, AUX video signals, and AR video signals and is connected to the second MIPICSI interface of the main control processing unit 140. The specific chip models mentioned above are merely embodiments and should not be construed as limiting the scope of protection of this application.

[0073] In some embodiments, the multi-functional interface integration module further includes: a radio module, which is connected to the main control processing unit via a control communication line and to the audio processing subunit via an audio output line, so that the main control processing unit can control the working state of the radio module, and the radio audio output by the radio module can be input to the audio processing subunit as an optional audio source.

[0074] The main control processing unit can control the radio module via the control communication line, such as performing frequency selection, band switching, station searching, mute, or status reading. The radio audio output from the radio module can be used as an optional audio source input to the audio processing subunit.

[0075] See Figure 8 , Figure 8 This is a schematic diagram of the structure of a radio module provided in an embodiment of this utility model.

[0076] The radio module includes a vehicle radio receiver chip of model SI4754C, as well as peripheral circuitry.

[0077] The eSIM module is connected to the eSIM interface of the main control processing unit. The interface aggregation unit is also equipped with an external SIM card interface, enabling the main control processing unit to be compatible with both built-in eSIM and external SIM cards. Thus, the multi-functional interface integration module for the car's central control screen can choose to use either a built-in eSIM or an external physical SIM card, depending on different car models, different operator configurations, or different customer needs.

[0078] See Figure 9 , Figure 9 This is a schematic diagram of the structure of an eSIM module provided in an embodiment of the present invention. The eSIM module is designated M2M_ESIM and also includes peripheral circuitry.

[0079] The authentication module, connected to the main control processing unit via a control communication line, provides peripheral authentication communication to the main control processing unit. Specifically, the authentication module can be used to support identity authentication and authorization communication for specific peripherals or protocol functions.

[0080] See Figure 10 , Figure 10 This is a schematic diagram of an authentication module provided in an embodiment of the present invention. The authentication module is model MFI00011777 and also includes peripheral circuitry.

[0081] In one embodiment, the radio module, the eSIM module, and the authentication module are respectively connected to the main control processing unit and / or the signal processing unit via audio lines, card interface lines, or control communication lines to form an integrated access structure for radio reception, communication card, and authentication functions.

[0082] The above-mentioned communication line types are only examples. In other implementations, SPI, UART or other suitable communication lines may also be used.

[0083] By integrating the radio module, eSIM module, and authentication module into the same interface module, this embodiment further improves the functional integration of the multi-functional interface integration module of the car's central control screen, enabling the radio, communication card, and authentication functions to form a unified connection structure with the main control processing unit, audio processing subunit, and interface aggregation unit.

[0084] In some embodiments, the vehicle body control unit includes a microprocessor and a power conversion module; the microprocessor is communicatively connected to the main control processing unit and is used to transmit control information between the main control processing unit and vehicle-side control signals; the microprocessor is also connected to the vehicle control interface in the interface aggregation unit and is used to receive at least two of panel button signals, knob signals, original vehicle steering wheel control signals, and steering detection signals; the power conversion module includes a vehicle power input terminal, a first power conversion unit, and a second power conversion unit, the vehicle power input terminal being used to connect to the vehicle's constant power supply, the first power conversion unit being used to convert the vehicle's constant power supply into a first operating power supply, and the second power conversion unit being used to convert the first operating power supply into a second operating power supply; the microprocessor is connected to the enable control terminal of the first power conversion unit and / or the second power conversion unit and is used to control the power conversion module to supply power to the main control processing unit and the signal processing unit according to the vehicle status, button status, or control instructions from the main control processing unit.

[0085] Specifically, the microprocessor is communicatively connected to the main control processing unit to transmit control information between the main control processing unit and vehicle-side control signals. The microprocessor is also connected to the vehicle control interface area in the interface aggregation unit to receive at least two of the following: panel button signals, knob signals, original vehicle steering wheel control signals, and steering detection signals.

[0086] The vehicle power input terminal is used to connect to the vehicle's constant power supply. A first power conversion unit converts the vehicle's constant power supply into a first operating power supply. A second power conversion unit converts the first operating power supply into a second operating power supply.

[0087] The microprocessor is connected to the enable control terminal of the first power conversion unit and / or the second power conversion unit, and is used to control the power conversion module to supply power to the main control processing unit and the signal processing unit according to the vehicle status, button status or control instructions of the main control processing unit.

[0088] For example, when the vehicle is powered on, a user presses a panel button, or a main control wake-up signal is generated, the microprocessor can control the first power conversion unit and the second power conversion unit to start sequentially to provide operating power to the main control processing unit 140. When the vehicle is turned off or the system enters standby mode, the microprocessor can turn off the power to some peripheral devices or control the entire unit to enter a low-power state.

[0089] In one specific embodiment, the vehicle's power input terminal is connected to a constant 12V vehicle power supply. The first power conversion unit may include an SCT2450 power conversion chip, used to convert the constant 12V vehicle power supply to 5V. The second power conversion unit may include an FSP2135DBCC power conversion chip, used to convert the 5V power supply to 3.9V and supply power to the main control processing unit. The power conversion chip models and voltage values ​​described above are only specific embodiments; in other embodiments, other power conversion chips and output voltages may be used according to different main control platforms and peripheral requirements.

[0090] With the above structure, the microprocessor not only processes vehicle-side control signals but also participates in the enable control of the power conversion module, enabling vehicle-side signal processing and power management to be implemented collaboratively within the same body control unit. This structure facilitates the formation of clear and controllable power-on, power-off, and standby control logic.

[0091] In some embodiments, the interface aggregation unit includes multiple external connectors disposed on the same circuit board; the multiple external connectors include at least three of the following: power and horn connector, panoramic and function connector, USB and protocol box connector, display connector, touch screen connector, and button / knob / microphone connector; the power and horn connector is used to connect to the vehicle power supply and output horn signals; the panoramic and function connector is used to connect to at least two of the following: 360-degree panoramic video signals, external video signals, external SIM card signals, and audio signals; the USB and protocol box connector is used to connect to at least one of the following: USB signals, external protocol box serial port signals, and original vehicle camera signals; the display connector and the touch screen connector are respectively connected to the main control processing unit; the button / knob / microphone connector is used to connect to at least one of the following: button signals, knob signals, and microphone signals; wherein, the multiple external connectors are connected to the main control processing unit, the signal processing unit, and the body control unit according to the signal type to form a centralized external interface structure.

[0092] See Figure 11 , Figure 11 This is a schematic diagram of the structure of an external connector provided in an embodiment of this utility model.

[0093] The 18-pin wiring harness interface for the vehicle's infotainment system connects the horn, ACC, reverse, steering wheel buttons, antenna power, light signals, battery power, and leads to the mainboard. It also provides EMI suppression for the horn wires and fuse protection, reverse connection protection, and LC filtering for the B+ power supply.

[0094] The aforementioned external connectors are connected to the main control processing unit, signal processing unit, and body control unit according to signal type, forming a centralized external interface structure. This structure reduces scattered connectors and external adapter harnesses, facilitating the installation, maintenance, and vehicle compatibility of the central control screen system.

[0095] In some embodiments, the body control unit is configured to control the multi-functional interface integrated module to power on upon receiving a vehicle start signal, a panel button signal, or a main control wake-up signal; the main control processing unit is configured to initialize the audio processing subunit and the at least two video processing channels in the signal processing unit after power-on; when the interface aggregation unit receives a reversing video signal, a 360-degree panoramic video signal, or a steering detection signal, the main control processing unit and / or the body control unit control the corresponding video processing channel to operate and input the corresponding video signal to the main control processing unit; when the interface aggregation unit receives main control audio, radio audio, or external audio, the main control processing unit and / or the body control unit control the audio processing subunit to select the corresponding audio source and output it to the speaker interface or external amplifier interface; wherein, the vehicle-side control signal, external video signal, and multiple audio signals are processed collaboratively by the body control unit, the main control processing unit, and the signal processing unit to achieve audio-visual linkage control in the vehicle scenario.

[0096] Specifically, the multi-functional interface integration module can achieve audio and video linkage control based on vehicle-side trigger signals.

[0097] The vehicle control unit is configured to power on the vehicle's central control screen multi-function interface integrated module upon receiving a vehicle start signal, panel button signal, or main control wake-up signal. For example, a microprocessor can enable a power conversion module to sequentially establish a first operating power supply and a second operating power supply, thereby supplying power to the main control processing unit, signal processing unit, or other peripherals.

[0098] The main control processing unit can configure the default audio source of the audio selection module, and configure the video format, input channel, and working status of the first and second video processing channels.

[0099] When the interface aggregation unit receives a reversing video signal, a 360-degree panoramic video signal, or a steering detection signal, the main control processing unit and / or the body control unit control the corresponding video processing channel to work and input the corresponding video signal to the main control processing unit.

[0100] For example, when the vehicle enters reverse mode, the reverse trigger signal can be input to the microprocessor via the vehicle control interface area. The microprocessor sends the reverse status to the main control processing unit. The main control processing unit controls the second video processing channel to receive the reverse video signal and inputs the processed reverse video to the second video input interface to display the reverse image on the central control screen.

[0101] For example, when the vehicle activates the 360-degree panoramic function, the main control processing unit controls the first video processing channel to receive the 360-degree panoramic video signal and inputs the processed 360-degree panoramic video to the first video input interface to display the panoramic image on the central control screen.

[0102] In radio mode, the audio selection module selects the radio audio output by the radio module; in AUX mode, the audio selection module selects the external AUX audio; in navigation or media playback mode, the audio selection module selects the main control audio output by the main control processing unit.

[0103] Therefore, vehicle-side control signals, external video signals, and multiple audio signals are processed collaboratively by the body control unit, main control processing unit, and signal processing unit to achieve audio-visual linkage control in vehicle scenarios. This control method not only meets the needs of scenarios such as vehicle reversing, steering, and panoramic display, but also enables adaptation between different audio sources and different audio output methods.

[0104] It should be noted that the specific chip model, interface type, and voltage parameters described above are only used to illustrate one specific embodiment of this application and are not intended to limit the scope of protection of this application. Without departing from the concept of this application, those skilled in the art can replace or adjust the specific chip model, number of interfaces, connector type, and power parameters according to the actual vehicle model, main control platform, video system, audio output method, or power requirements.

[0105] It should also be noted that the control circuit in this utility model is a conventional control unit in the field, and its internal control program and processing method adopt mature solutions in the prior art. Those skilled in the art can select and implement them as needed, and will not elaborate further here. The improvement of this utility model does not involve the improvement of the structure of the control circuit itself or its control method. Its innovation lies mainly in the structural arrangement and connection relationship between the various components.

[0106] This utility model also provides a vehicle, including: a multi-functional interface integrated module as described in any of the foregoing embodiments.

[0107] For more details on the multi-functional interface integration module, please refer to the examples above.

[0108] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

[0109] Although the embodiments disclosed in this specification are as described above, this utility model is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope defined in the claims.

Claims

1. A multi-functional interface integrated module, characterized in that, include: Interface aggregation unit, used for centralized access or output of signals from peripheral devices on the central control screen and / or vehicle-side signals; A signal processing unit is connected to the interface aggregation unit. The signal processing unit includes an audio processing subunit and at least two video processing channels. The audio processing subunit is used to select and output multiple audio signals, and the at least two video processing channels are used to perform split processing on different types of external video signals. The main control processing unit is connected to the interface aggregation unit and the signal processing unit respectively, and is used to receive video signals output from the at least two video processing channels, and process at least one of the display, touch, communication, audio and video data of the central control screen; The body control unit is connected to the interface aggregation unit, the signal processing unit and the main control processing unit respectively, and is used to manage the power supply of the multi-functional interface integrated module and to receive or process vehicle-side control signals. The interface aggregation unit, the signal processing unit, the main control processing unit, and the body control unit are integrated on the same circuit board.

2. The multi-functional interface integration module according to claim 1, characterized in that, The interface aggregation unit includes: The display touch interface area is used to receive display screen signals and touch screen signals, and is connected to the main control processing unit; The audio / video interface area is used to receive external video signals, external audio signals, and output vehicle audio signals, and is connected to the signal processing unit. The communication interface area is used to access at least two of the following: USB signal, SIM card signal, eSIM signal, wireless communication antenna signal, and positioning antenna signal, and is connected to the main control processing unit. The vehicle control interface area is used to receive at least two of the following: panel button signals, knob signals, steering wheel control signals, steering detection signals, and microphone signals, and is connected to the body control unit and / or the main control processing unit.

3. The multi-functional interface integration module according to claim 2, characterized in that, The main control processing unit includes an in-vehicle multimedia main control module; The in-vehicle multimedia main control module includes: The display signal interface is connected to the display screen interface in the interface aggregation unit; Touch signal interface, connected to the touch screen interface in the interface aggregation unit; The first video input interface is connected to a video processing channel in the signal processing unit; The second video input interface is connected to another video processing channel in the signal processing unit, so that different types of external video signals are input to the vehicle multimedia main control module through different video processing channels. An audio output interface is connected to the audio processing subunit in the signal processing unit, so that the audio signal output by the vehicle multimedia main control module can be used as an optional audio source. The control communication interface is connected to the vehicle body control unit, enabling the in-vehicle multimedia main control module to interact with the vehicle body control unit for control information exchange.

4. The multi-functional interface integration module according to claim 1, characterized in that, The audio processing subunit includes an audio selection module and an audio output module; The audio selection module has multiple audio input terminals, which are respectively used to receive at least two of the following: the main control audio output by the main control processing unit, the radio audio output by the radio module, and the external audio input by the interface aggregation unit. The output terminal of the audio selection module is connected to the audio output module, and the audio output module includes a first audio output path and a second audio output path. The first audio output path is used to output multiple analog audio signals to the external power amplifier interface, and the second audio output path is used to output multiple horn drive signals to the original car horn interface. The audio selection module and the audio output module work together to enable the multi-functional interface integrated module to select from a variety of audio input sources and be compatible with external amplifier output and original car speaker output.

5. The multi-functional interface integration module according to claim 1, characterized in that, The at least two video processing channels include a first video processing channel and a second video processing channel; The first video processing channel is connected between the first type of video interface in the interface aggregation unit and the first video input interface of the main control processing unit, and is used to receive and process 360 panoramic video signals. The second video processing channel is connected between the second type of video interface in the interface aggregation unit and the second video input interface of the main control processing unit, and is used to receive and process at least one of the reversing video signal, AUX video signal and AR video signal; The first video processing channel and the second video processing channel are respectively communicatively connected to the main control processing unit and controlled by the main control processing unit; Among them, the 360-degree panoramic video signal, the reversing video signal, the AUX video signal, and the AR video signal are processed through different video processing channels and then input to different video input interfaces of the main control processing unit to form a split access and split processing structure for external video signals.

6. The multi-functional interface integration module according to claim 1, characterized in that, The multi-functional interface integration module also includes: The radio module is connected to the main control processing unit via a control communication line and to the audio processing subunit via an audio output line, enabling the main control processing unit to control the working state of the radio module, and the radio audio output by the radio module can be input to the audio processing subunit as an optional audio source. The eSIM module is connected to the eSIM interface of the main control processing unit. The interface aggregation unit is also provided with an external SIM card interface, so that the main control processing unit can be compatible with both built-in eSIM and external SIM card. The authentication module is connected to the main control processing unit via a control communication line and is used to provide peripheral authentication communication to the main control processing unit. The radio module, the eSIM module, and the authentication module are connected to the main control processing unit and / or the signal processing unit via audio lines, card interface lines, or control communication lines, respectively, to form an integrated access structure for radio reception, communication card, and authentication functions.

7. The multi-functional interface integration module according to claim 1, characterized in that, The vehicle control unit includes a microprocessor and a power conversion module; The microprocessor is communicatively connected to the main control processing unit and is used to transmit control information between the main control processing unit and the vehicle-side control signal. The microprocessor is also connected to the vehicle control interface in the interface aggregation unit, and is used to receive at least two of the following: panel button signals, knob signals, original vehicle steering wheel control signals, and steering detection signals; The power conversion module includes a vehicle power input terminal, a first power conversion unit, and a second power conversion unit. The vehicle power input terminal is used to connect to the vehicle's constant power supply. The first power conversion unit is used to convert the vehicle's constant power supply into a first working power supply. The second power conversion unit is used to convert the first working power supply into a second working power supply. The microprocessor is connected to the enable control terminal of the first power conversion unit and / or the second power conversion unit, and is used to control the power conversion module to supply power to the main control processing unit and the signal processing unit according to the vehicle status, button status or control instructions of the main control processing unit.

8. The multi-functional interface integration module according to claim 1, characterized in that, The interface aggregation unit includes multiple external connectors disposed on the same circuit board; The plurality of external connectors include at least three of the following: power and speaker connectors, panoramic and function connectors, USB and protocol box connectors, display connectors, touch screen connectors, and button / knob / microphone connectors. The power supply and horn connector is used to connect to the vehicle's power supply and output a horn signal. The panoramic and functional connector is used to access at least two of the following: 360 panoramic video signals, external video signals, external SIM card signals, and audio signals; The USB and protocol box connector is used to access at least one of USB signals, external protocol box serial port signals, and original vehicle camera signals. The display connector and the touch screen connector are respectively connected to the main control processing unit; The button, knob, and microphone connector is used to receive at least one of button signals, knob signals, and microphone signals. The plurality of external connectors are connected to the main control processing unit, the signal processing unit and the body control unit respectively according to the signal type, to form a centralized external interface structure.

9. The multi-functional interface integration module according to claim 1, characterized in that, The body control unit is configured to control the multi-function interface integrated module to power on when it receives a vehicle start signal, a panel button signal, or a main control wake-up signal. The main control processing unit is configured to initialize the audio processing subunit and the at least two video processing channels in the signal processing unit after power-on; When the interface aggregation unit receives a reversing video signal, a 360-degree panoramic video signal, or a steering detection signal, the main control processing unit and / or the vehicle body control unit control the corresponding video processing channel to work and input the corresponding video signal to the main control processing unit. When the interface aggregation unit receives main control audio, radio audio or external audio, the main control processing unit and / or the vehicle body control unit control the audio processing subunit to select the corresponding audio source and output it to the speaker interface or external power amplifier interface. Among them, the vehicle-side control signal, external video signal and multiple audio signals are processed collaboratively by the body control unit, the main control processing unit and the signal processing unit to realize audio and video linkage control in the vehicle scenario.

10. A vehicle, characterized in that, include: The multi-functional interface integration module as described in any one of claims 1 to 9.

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