Intelligent centralized control system and control method for motor home

Abstract

The invention discloses a limo intelligent centralized control system and method, the system comprises a host and a centralized control screen, the host adopts a vehicle specification system-level chip, various control methods such as voice recognition, touch control, mechanical switching and the like are realized, the full-condition use requirements of a user are met, the full-sensory immersive experience of the user is improved, and the user experience is improved. The ever-increasing requirements of strong computing power, rich multimedia performance and the like are met; the group of control screens realizes high integration and high intelligence of the control system, comprises an intelligent voice interaction area, a sensing interaction area, a convenient control area and a just-needed functional area, and provides a clear and convenient operation interface; meanwhile, a full-link voice interaction technology is implanted into the system, multiple languages and dialects are supported, mass data are continuously updated, and the voice recognition accuracy is continuously improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of intelligent cockpits, and specifically relates to an intelligent centralized control system and a control method for a recreational vehicle. Background Art

[0002] An RV intelligent integrated control system intelligently manages various devices and functions within the RV, ensuring comfort, safety, and convenience through centralized control. Existing RV home control systems have limited functionality, low overall integration, and low intelligence levels, failing to meet users' growing demand for diverse and intelligent functions.

[0003] The current mainstream RV intelligent centralized control system, such as the RV Internet of Things control system disclosed in patent publication number CN215729368U, is composed of multiple decentralized and independent small modules, which generally include: touch screen, central control module, voice control module, network controller, manual switch module, multiple groups of relay modules, etc. Each module has a single function and low integration, and cannot realize highly intelligent RV electrical system control functions. Summary of the Invention

[0004] In response to the above problems, the main purpose of the present invention is to design an intelligent centralized control system and control method for RVs, which solves the problems of single functional modules and low integration of the RV centralized control system through the coordinated setting of the host and the centralized control screen.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions: RV intelligent centralized control system, which includes a host and a centralized control screen. The host and the centralized control screen communicate via CAN and LVDS, and the host and the vehicle communicate via CAN; The host comprises a host MCU, a host SOC and a serializer, wherein the host SOC is used as a master node of the inter-integrated circuit link I2C, and the serializer is used as a slave node of the inter-integrated circuit link I2C; The centralized control screen includes a display screen module and a knob screen module. The display screen module includes an LCD screen, a display screen end MCU, and a deserializer. The deserializer, the display screen end MCU, and the LCD screen are used as the same I2C slave node; the knob screen module includes a knob screen, a knob screen end SOC, and a capacitive touch button. The display screen end MCU and the knob screen end SOC exchange information through I2C, and the knob screen end SOC serves as the I2C master node. The display screen MCU includes an interrupt pin for information reporting, and the LCD screen includes a TP interrupt pin for data reporting. The interrupt pin and the TP interrupt pin are connected to the master node through serial deserialization and transparent transmission. The master node accesses the corresponding slave node through I2C to obtain information or data based on the detected interrupt pin status.

[0006] As a further description of the present invention, the LCD screen notifies the display screen end MCU to reset the LCD screen through the error status of the TPFault pin.

[0007] As a further description of the present invention, the integrated control screen is an LCD screen and a knob screen that are integrated in hardware and structure. The display screen side MCU is connected to the LCD screen, and the display screen side MCU communicates with the knob screen side SOC via I2C; The centralized control panel is connected to the host via CAN and LVDS. LVDS communicates after the host SOC is started and the output is stable. CAN communicates with the host MCU after the host is powered on and started, and has nothing to do with the start-up of the host SOC.

[0008] As a further description of the present invention, the specifications of the LCD screen are set to a 12.3-inch incell LCD screen, which includes an intelligent voice interaction area and a perception interaction area. The specifications of the knob screen are set to a 1.5-inch D-type screen, which includes a convenient control area and a just-needed function area.

[0009] As a further description of the present invention, the intelligent voice interaction area provides full-link voice interaction functions; the perception interaction area serves as the main body of user interaction and provides all vehicle-related vehicle control and setting functions; in the convenient control area, users can quickly operate the volume, wind speed, temperature, light color temperature, light brightness, and light color by rotating and short pressing the knob screen; the just-needed function area provides load control functions after the system is turned on and before the operating system is started.

[0010] As a further description of the present invention, the host SOC includes multiple communication protocols and interfaces, including voice control, in-vehicle Ethernet, Bluetooth, HDMI video access, and high-definition video output.

[0011] As a further description of the present invention, the host SOC includes an audio processing module, a communication module, a display module, and a storage module; The audio processing module, communication module, display module, and storage module are all connected to or communicate with the system on chip of the host SOC; The host MCU includes a power management module and a CAN communication module.

[0012] As a further description of the present invention, the host SOC further includes a microcontroller unit and a main connector, the CAN communication module is connected to the microcontroller unit, and the audio processing module, the communication module, the display module, and the storage module are respectively connected to or communicate with the main connector; The audio processing module includes an analog audio connector, a pickup, an audio digital signal processing unit, and a digital audio connector; the pickup is connected to the main connector and the input end of the audio digital signal processing unit, the analog audio connector and the digital audio connector are respectively connected to the output end of the audio digital signal processing unit, and the audio digital signal processing unit communicates with the system-on-chip of the host SOC; The CAN communication module includes a CAN transceiver, and the communication module includes a Bluetooth module and an Ethernet transceiver; the CAN transceiver communicates between the main connector and the microcontroller unit via CAN, and the main connector and the microcontroller unit also include a hard-wired interface, and the microcontroller unit is connected to the host SOC system-on-chip via SPI and GPIO respectively; the Bluetooth module includes a Bluetooth antenna, and the Bluetooth module is connected to the host SOC system-on-chip; the Ethernet connector is connected to the host SOC system-on-chip via an Ethernet transceiver; The display module includes a display screen connector, an HDIM connector, a serializer, and a video conversion chip; the display screen connector is connected to the control screen and is connected to the host SOC chip system through the serializer; the HDIM connector is connected to the host SOC chip system through the video conversion chip; The storage module includes a random access memory and a read-only memory; the random access memory and the read-only memory are both connected to the system on chip of the host SOC; The power management module includes a power module, a USB connector and a USB charging protection unit; the USB connector is connected to the host SOC's system-on-chip through the USB charging protection unit, and the power module is connected to the main connector and provides basic power supply for the host SOC's system-on-chip.

[0013] The RV intelligent control method based on the above centralized control system includes the following steps: S1: Long press the knob screen to wake up the LCD screen and the knob screen. The LCD screen sends a CAN message to wake up the host MCU. The host MCU powers on the host SOC, and the system starts up. S2: The host SOC transmits the LCD display image and instructions to the LCD screen via LVDS. The host SOC and host MCU transmit the knob screen display data to the LCD screen via LVDS and CAN1 respectively. S3: After receiving the data from step S2, the LCD screen lights up and displays the corresponding screen, and forwards the knob screen display data to the knob screen through I2C for display; S4: During system operation, when the LCD screen is touched, a touch interrupt is generated and notified to the host via LVDS. The host reads the touch data via LVDS. When the knob screen is rotated or pressed, the LCD screen is notified via I2C. The LCD screen then notifies the host via LVDS. The host performs corresponding processing and changes the display screen. S5: During system operation, the knob screen transmits touch button information to the LCD screen via I2C, and the LCD screen then sends it to the host MCU via CAN. The host MCU sends vehicle status information to the LCD screen via CAN1, and the LCD screen then forwards it to the knob screen via I2C. The knob screen displays the corresponding indicator light. S6: After long pressing the knob screen, select shutdown on the LCD screen, the host SOC sends a shutdown command to the LCD screen via LVDS, and the LCD screen and the knob screen power down and go into sleep mode; S7: After the host MCU detects that CAN1 messages stop being sent and the vehicle LDU is turned off, the host goes into sleep mode.

[0014] Compared with the prior art, the technical effects of the present invention are: The present invention provides an intelligent centralized control system and control method for a motorhome. The system includes a host and a centralized control screen. The host adopts an automotive-grade system-level chip, and realizes multiple control methods such as voice recognition, touch control, and mechanical switches to meet the user's full working condition usage needs, improve the user's full sensory immersive experience, and meet the growing demand for powerful computing power, rich multimedia performance, etc.; a group of control screens realizes the high integration and high intelligence of the control system, including an intelligent voice interaction area, a perception interaction area, a convenient control area, and a rigid function area, providing a clear and convenient operation interface; at the same time, the system is implanted with full-link voice interaction technology, supports multiple languages ​​and dialects, and massive data is continuously updated, and the accuracy of voice recognition continues to improve. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the centralized control system of the present invention; Figure 2 This is a schematic diagram of the display status of the control screen of the present invention; Figure 3 This is a schematic diagram of the host SOC hardware architecture of the present invention; Figure 4 This is a schematic diagram of the startup sequence of the operating system of the centralized control system of the present invention. DETAILED DESCRIPTION

[0016] The present invention is described in detail below with reference to the accompanying drawings: In one embodiment of the present invention, a motorhome intelligent centralized control system is disclosed, referring to Figure 1As shown, the intelligent centralized control system includes two parts: a host and a centralized control screen. The host communicates with the centralized control screen through CAN and LVDS, and the host communicates with the entire vehicle through CAN. Specifically, the host includes a host MCU, a host SOC and a serializer. The host SOC is used as the master node of the inter-integrated circuit (IIC) link, and the serializer is used as the slave node of the inter-integrated circuit (IIC) link. The centralized control screen includes a display screen module and a knob screen module. The display screen module includes an LCD screen, a display screen end MCU, and a deserializer. The deserializer, the display screen end MCU and the LCD screen are used as the same I2C slave nodes. The LCD screen notifies the display screen end MCU to reset the LCD screen through the error state of the TPFault pin. The knob screen module includes a knob screen, a knob screen end SOC and a capacitive touch button. The display screen end MCU and the knob screen end SOC exchange information through I2C, and the knob screen end SOC serves as the I2C master node.

[0017] Specifically, in this embodiment, the display screen MCU includes an interrupt pin for information reporting, and the liquid crystal screen (TP) includes a TP interrupt pin for data reporting. The interrupt pin and the TP interrupt pin are connected to the master node through serial deserialization and transparent transmission. The master node accesses the corresponding slave node through I2C to obtain information or data based on the detected interrupt pin status.

[0018] In this embodiment, the above-mentioned integrated control screen includes an LCD screen and a knob screen with integrated hardware and structure. The display screen end MCU is connected to the LCD screen, and the display screen end MCU communicates with the knob screen end SOC through I2C; the integrated control screen is connected to the host through CAN and LVDS. LVDS communicates after the host SOC is started and the output is stable. CAN communicates with the host MCU after the host is powered on and started, and has nothing to do with the start-up of the host SOC.

[0019] Specifically, in this embodiment, the specification of the LCD screen is set to 12.3 inches incell LCD screen, which includes intelligent voice interaction area and perception interaction area, and the specification of the knob screen is set to 1.5 inches D-type screen, which includes convenient control area and just-needed function area. Figure 2 As shown, the intelligent voice interaction area provides support for full-link voice interaction functions; the perception interaction area serves as the main body of user interaction and provides all vehicle-related vehicle control and setting functions; the convenient control area allows users to quickly operate the volume, wind speed, temperature, light color temperature, light brightness, light color, etc. by rotating and short pressing the knob screen; the just-needed function area provides load control functions after the system is turned on and before the operating system (Android system) is started.

[0020] In this embodiment, the host adopts a system-on-chip solution, that is, the host SOC includes multiple communication protocols and interfaces, including voice control, vehicle Ethernet, Bluetooth, HDMI video access, and high-definition video output. The system-on-chip integrates voice control, vehicle Ethernet, Bluetooth, HDMI video access, high-definition video output and other interfaces into one, and its hardware architecture is as follows: Figure 3 shown.

[0021] It should also be noted that the hardware of the above-mentioned host SOC includes an audio processing module, a communication module, a display module, and a storage module; the audio processing module, communication module, display module, and storage module are all connected to or communicate with the system-on-chip of the host SOC; the host MCU includes a power management module and a CAN communication module.

[0022] Specifically, in this embodiment, the host SOC further includes a micro control unit and a main connector, the CAN communication module is connected to the micro control unit, and the audio processing module, communication module, display module, and storage module are respectively connected to or communicate with the main connector.

[0023] The audio processing module includes an analog audio connector, a microphone, an audio digital signal processing unit, and a digital audio connector. The microphone is connected to the main connector and the input of the audio digital signal processing unit, and the analog audio connector and digital audio connector are respectively connected to the output of the audio digital signal processing unit. The audio digital signal processing unit communicates with the system-on-chip (SoC) of the host SOC. Specifically, the microphone is responsible for collecting audio signals, which are then transmitted to the audio digital signal processing unit for digital processing. The processed digital audio signals are then output via the digital audio connector or further transmitted to the system-on-chip of the host SOC. This audio processing module implements the functions of collecting, processing, and outputting audio signals.

[0024] The CAN communication module includes a CAN transceiver, which includes a Bluetooth module and an Ethernet transceiver. The CAN transceiver communicates between the main connector and the microcontroller via CAN. A hardwired interface is also provided between the main connector and the microcontroller, and the microcontroller is connected to the host SOC's system-on-chip via SPI and GPIO. The Bluetooth module includes a Bluetooth antenna and is connected to the host SOC's system-on-chip. The Ethernet connector is connected to the host SOC's system-on-chip via an Ethernet transceiver. Specifically, the CAN transceiver connects to the microcontroller via CAN to implement CAN bus communication functions. The Bluetooth module connects to the host SOC's system-on-chip via a UART interface to provide Bluetooth wireless communication functions. CAN0_HL and CAN1_HL serve as two different channels of the CAN bus, connecting the main connector to the microcontroller to enable data transmission and reception. The Ethernet connector provides a physical interface for connecting to an Ethernet cable, while the Ethernet transceiver is responsible for sending and receiving data, ensuring correct data transmission and providing stable and efficient communication for the system. The CAN communication module and communication module enable the system-on-chip to communicate and transmit data via the CAN bus, Bluetooth, and Ethernet.

[0025] The display module includes a display connector, an HDIM connector, a serializer, and a video conversion chip. The display connector is connected to the control screen, and the display connector is connected to the host SOC's system-on-chip via the serializer. The HDIM connector is connected to the host SOC's system-on-chip via the video conversion chip. Specifically, the display connector is responsible for transmitting video signals to the control screen for display, while the video conversion chip communicates and transmits data with the host SOC's system-on-chip, controlling the video conversion chip to control the content and format displayed on the control screen.

[0026] The storage module includes a random access memory (RAM) and a read-only memory (ROM), both of which are connected to the host SOC system-on-chip (SoC). Specifically, the RAM is used to temporarily store running data and instructions for quick access, while the ROM is used to store data and programs long-term, ensuring they remain intact even during power outages, providing stable storage for the system.

[0027] The power management module includes a power module, a USB connector, and a USB charging protection unit. The USB connector connects to the host SOC's system-on-chip (SoC) via the USB charging protection unit. The power module connects to the main connector and provides basic power to the host SOC's SoC. Specifically, the USB connector is used to connect to external USB devices, such as storage devices or external devices, for data transmission or power supply. The USB charging protection unit protects the system from damage caused by USB charging, such as overcurrent and overvoltage. The power module provides the basic power required by the entire system.

[0028] Through the above content, the intelligent centralized control system of the present invention is disclosed. After the system is turned on, the startup process of its operating system Android system is as follows: Figure 4 As shown in the figure, the total boot time of the operating system is about 15 seconds. The specific boot process is divided into three stages: Uboot boot, Kernel boot and Android system boot.

[0029] Uboot boot: This is the pre-boot stage. During this stage, the boot mode is distinguished, the eMMC is initialized, and the three-stage bootloader file and the security file HSM are loaded.

[0030] 1. Start the Uboot bootloader: When the Android system is powered on or reset, the first thing executed is the bootloader. Uboot is one of the widely used open source bootloaders. Uboot is responsible for initializing the hardware and preparing to load the operating system kernel. 2. Read boot mode: Uboot reads the boot mode configuration of the Android system, which determines how the Android system will be started, such as internal EMMC or external SD / MMC card; 3. Initialize eMMC: The Android system is configured to boot from eMMC. Uboot will initialize the eMMC interface and prepare to read the bootloader and data stored on the eMMC. 4. Download the bootloader BL1: Uboot loads the BL1 stage code from the boot medium eMMC or other storage medium to a specific address in iRAM; 5. Initialize DRAM: After the BL1 phase is completed, DRAM will be initialized to provide sufficient memory space for the subsequent bootloader and Android system kernel; Download the Hardware Security Module (HSM): After DRAM is initialized, download and initialize the HSM to ensure the security of the Android system. The HSM is a hardware security module that provides security functions such as encryption, decryption, and signing. 6. Download bootloaders BL2 and BL3: In the multi-stage boot process, BL2 and BL3 are the bootloaders for the subsequent stages. Uboot will sequentially load and execute the bootloaders of the BL2 and BL3 stages into memory until it finally starts the Android system kernel. Through the above steps, the Uboot bootloader can successfully boot the Android system from the boot medium to the kernel running state.

[0031] Kernel startup: Loading the Linux kernel and establishing the Linux operating environment.

[0032] 1. Start the kernel: When the boot loader (such as Uboot) completes its task, it will hand over control to the kernel, and the kernel begins to execute its startup code and perform necessary initialization; 2. Initialize the external interrupt service scheduler: The kernel sets up and initializes the interrupt handling mechanism so that it can respond to and handle interrupts from hardware; this includes configuring the interrupt controller, setting up interrupt handlers, etc. Initialize the memory management unit protection program: The memory management unit (MMU) is responsible for mapping virtual memory to physical memory; the kernel initializes the MMU and sets up memory protection mechanisms to prevent illegal memory access; 3. Loading device drivers: The kernel identifies the hardware devices in the Android system and loads the corresponding drivers; these drivers allow the kernel to communicate with and control the hardware devices; 4. Initialize kernel service processes: The kernel creates and initializes some core service processes, such as the init process, which is responsible for starting and managing other processes in the Android system. Set up mount points: The kernel prepares the file system and sets the mount points so that the root file system and other file systems can be mounted and accessed; Initialize the runtime environment of the kernel process: The kernel provides the necessary environment for the process to run, including process scheduling, memory allocation, I / O devices, etc.; ensuring that the process can execute in a stable and secure environment; Through the above steps, the kernel successfully starts the operating system and provides a solid foundation for subsequent user processes and system services. Android system startup: For the Android running stage, it establishes the framework and VM environment required by the Android application APK and runs various core service programs.

[0033] 1. System startup: When the device is powered on, the boot program starts executing from the preset code stored in the ROM, loading and executing the Boot Loader, performing memory checks, hardware parameter initialization, and other operations; Loading the kernel: The Boot Loader will load the Linux Kernel, which is the kernel layer of the Android system and is responsible for loading hardware drivers such as the camera and display. Start the Init process: After the kernel is loaded, the first user process Init (pid=1) will be created, which is responsible for starting other key processes of the Android system; Start the Zygote process: The Init process will hatch the Zygote process, which is the bridge between the Java world and the Native world. The Zygote process will create the SystemServer process, which is responsible for starting the Android framework system service; 2. Run the Dalvik virtual machine: In the Zygote process, the Dalvik virtual machine is started, and obtains the JavaVM instance and JNIEnv instance, and begins executing Java code. System service startup: With the startup of the SystemServer process, various services of the Android system also begin to run, including core services and other services; 3. Entering the idle state: When all necessary services and processes are started and running, the Android system enters the idle state, waiting for user operations; Through the above steps, the Android system startup process is completed.

[0034] In another embodiment of the present invention, a method for intelligently controlling a recreational vehicle is disclosed. The method is based on the above-mentioned centralized control system and includes the following steps: S1: Long press the knob screen to wake up the LCD screen and the knob screen. The LCD screen sends a CAN message to wake up the host MCU. The host MCU powers on the host SOC, and the system starts up. S2: The host SOC transmits the LCD display image and instructions to the LCD screen via LVDS. The host SOC and host MCU transmit the knob screen display data to the LCD screen via LVDS and CAN1 respectively. S3: After receiving the data from step S2, the LCD screen lights up and displays the corresponding screen, and forwards the knob screen display data to the knob screen through I2C for display; S4: During system operation, when the LCD screen is touched, a touch interrupt is generated and notified to the host via LVDS. The host reads the touch data via LVDS. When the knob screen is rotated or pressed, the LCD screen is notified via I2C. The LCD screen then notifies the host via LVDS. The host performs corresponding processing and changes the display screen. S5: During system operation, the knob screen transmits touch button information to the LCD screen via I2C, and the LCD screen then sends it to the host MCU via CAN. The host MCU sends vehicle status information to the LCD screen via CAN1, and the LCD screen then forwards it to the knob screen via I2C. The knob screen displays the corresponding indicator light. S6: After long pressing the knob screen, select shutdown on the LCD screen, the host SOC sends a shutdown command to the LCD screen via LVDS, and the LCD screen and the knob screen power down and go into sleep mode; S7: After the host MCU detects that CAN1 messages stop being sent and the vehicle LDU is turned off, the host goes into sleep mode.

[0035] The above content discloses the intelligent centralized control system and control method for RVs of the present invention. Compared with the prior art, the present invention has the following advantages: 1. This invention abandons the design status of traditional RV IoT control systems with multiple separate ECUs and single functions. Instead, it adopts an automotive-grade system-on-chip (host SOC) to implement multiple control methods such as voice recognition, touch control, and mechanical switches, meeting the user's full operating needs and enhancing the user's full sensory immersion experience. 2. The host SOC of the present invention meets the growing demand of RV control systems for powerful computing capabilities and rich multimedia performance; 3. The present invention only includes one host and a set of centralized control panels, achieving a highly integrated and intelligent control system; 4. The system of the present invention is embedded with full-link voice interaction technology, supporting multiple languages ​​and dialects such as Mandarin, Chinese-English hybrid, English, Portuguese, Cantonese, Sichuan, and Shanghai. With massive data constantly updated, the accuracy of voice recognition continues to improve. 5. The control screen of the present invention adopts a dual-screen centralized control solution, including an intelligent voice interaction area, a perception interaction area, a convenient control area, and a just-needed function area, providing a clear and convenient operation interface.

[0036] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the scope of the present invention. Other modifications or equivalent substitutions made to the technical solutions of the present invention by ordinary technicians in this field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.

Claims

1. RV intelligent centralized control system, characterized by: The intelligent centralized control system includes a host and a centralized control screen. The host and the centralized control screen communicate via CAN and LVDS, and the host and the vehicle communicate via CAN. The host comprises a host MCU, a host SOC and a serializer, wherein the host SOC is used as a master node of the inter-integrated circuit link I2C, and the serializer is used as a slave node of the inter-integrated circuit link I2C; The centralized control screen includes a display screen module and a knob screen module. The display screen module includes an LCD screen, a display screen end MCU, and a deserializer. The deserializer, the display screen end MCU, and the LCD screen are used as the same I2C slave node; the knob screen module includes a knob screen, a knob screen end SOC, and a capacitive touch button. The display screen end MCU and the knob screen end SOC exchange information through I2C, and the knob screen end SOC serves as the I2C master node. The display screen MCU includes an interrupt pin for information reporting, and the LCD screen includes a TP interrupt pin for data reporting. The interrupt pin and the TP interrupt pin are connected to the master node through serial deserialization and transparent transmission. The master node accesses the corresponding slave node through I2C to obtain information or data based on the detected interrupt pin status.

2. The RV intelligent centralized control system according to claim 1, characterized in that: The LCD screen notifies the display screen end MCU to reset the LCD screen through the error state of the TPFault pin.

3. The RV intelligent centralized control system according to claim 1, characterized in that: The integrated control screen is an LCD screen and a knob screen that integrates hardware and structure. The display screen MCU is connected to the LCD screen, and the display screen MCU communicates with the knob screen SOC via I2C. The centralized control panel is connected to the host via CAN and LVDS. LVDS communicates after the host SOC is started and the output is stable. CAN communicates with the host MCU after the host is powered on and started, and has nothing to do with the start-up of the host SOC.

4. The RV intelligent centralized control system according to claim 3, characterized in that: The specification of the LCD screen is set to a 12.3-inch incell LCD screen, which includes an intelligent voice interaction area and a perception interaction area. The specification of the knob screen is set to a 1.5-inch D-type screen, which includes a convenient control area and a just-needed function area.

5. The RV intelligent centralized control system according to claim 4 is characterized in that: The intelligent voice interaction area provides full-link voice interaction functions; the perception interaction area serves as the main body of user interaction and provides all vehicle-related vehicle control and setting functions; in the convenient control area, users can quickly operate the volume, wind speed, temperature, light color temperature, light brightness, and light color by rotating and short-pressing the knob screen; the essential function area provides load control functions after the system is turned on and before the operating system is started.

6. The RV intelligent centralized control system according to claim 1, characterized in that: The host SOC includes multiple communication protocols and interfaces, including voice control, in-vehicle Ethernet, Bluetooth, HDMI video access, and high-definition video output.

7. The RV intelligent centralized control system according to claim 6, characterized in that: The host SOC includes an audio processing module, a communication module, a display module, and a storage module; The audio processing module, communication module, display module, and storage module are all connected to or communicate with the system on chip of the host SOC; The host MCU includes a power management module and a CAN communication module.

8. The RV intelligent centralized control system according to claim 7, characterized in that: The host SOC further includes a microcontroller unit and a main connector, the CAN communication module is connected to the microcontroller unit, and the audio processing module, communication module, display module, and storage module are respectively connected to or communicate with the main connector; The audio processing module includes an analog audio connector, a pickup, an audio digital signal processing unit, and a digital audio connector; the pickup is connected to the main connector and the input end of the audio digital signal processing unit, the analog audio connector and the digital audio connector are respectively connected to the output end of the audio digital signal processing unit, and the audio digital signal processing unit communicates with the system-on-chip of the host SOC; The CAN communication module includes a CAN transceiver, and the communication module includes a Bluetooth module and an Ethernet transceiver; the CAN transceiver communicates between the main connector and the microcontroller unit via CAN, and the main connector and the microcontroller unit also include a hard-wired interface, and the microcontroller unit is connected to the host SOC system-on-chip via SPI and GPIO respectively; the Bluetooth module includes a Bluetooth antenna, and the Bluetooth module is connected to the host SOC system-on-chip; the Ethernet connector is connected to the host SOC system-on-chip via an Ethernet transceiver; The display module includes a display screen connector, an HDIM connector, a serializer, and a video conversion chip; the display screen connector is connected to the control screen and is connected to the host SOC chip system through the serializer; the HDIM connector is connected to the host SOC chip system through the video conversion chip; The storage module includes a random access memory and a read-only memory; the random access memory and the read-only memory are both connected to the system on chip of the host SOC; The power management module includes a power module, a USB connector and a USB charging protection unit; the USB connector is connected to the host SOC's system-on-chip through the USB charging protection unit, and the power module is connected to the main connector and provides basic power supply for the host SOC's system-on-chip.

9. The RV intelligent control method of the centralized control system according to any one of claims 1 to 8, characterized in that: The control method is based on the above-mentioned intelligent centralized control system and includes the following steps: S1: Long press the knob screen to wake up the LCD screen and the knob screen. The LCD screen sends a CAN message to wake up the host MCU. The host MCU powers on the host SOC, and the system starts up. S2: The host SOC transmits the LCD display image and instructions to the LCD screen via LVDS. The host SOC and host MCU transmit the knob screen display data to the LCD screen via LVDS and CAN1 respectively. S3: After receiving the data from step S2, the LCD screen lights up and displays the corresponding screen, and forwards the knob screen display data to the knob screen through I2C for display; S4: During system operation, when the LCD screen is touched, a touch interrupt is generated and notified to the host via LVDS. The host reads the touch data via LVDS. When the knob screen is rotated or pressed, the LCD screen is notified via I2C. The LCD screen then notifies the host via LVDS. The host performs corresponding processing and changes the display screen. S5: During system operation, the knob screen transmits touch button information to the LCD screen via I2C, and the LCD screen then sends it to the host MCU via CAN. The host MCU sends vehicle status information to the LCD screen via CAN1, and the LCD screen then forwards it to the knob screen via I2C. The knob screen displays the corresponding indicator light. S6: After long pressing the knob screen, select shutdown on the LCD screen, the host SOC sends a shutdown command to the LCD screen via LVDS, and the LCD screen and the knob screen power down and go into sleep mode; S7: After the host MCU detects that CAN1 messages stop being sent and the vehicle LDU is turned off, the host goes into sleep mode.

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