A vehicle-mounted fusion display method, system and device

Abstract

The present invention relates to the field of data processing technology, and discloses a vehicle-mounted fusion display method, system and device, including a vehicle-mounted fusion display system, a vehicle-mounted fusion display method and a vehicle-mounted fusion display device. The vehicle-mounted fusion display system is integrated by a kernel system and an Android system through shared memory. The vehicle-mounted fusion display system includes a vehicle-mounted instrument display module, a vehicle-mounted central control panel display module and an information fusion module. The information fusion module includes a digital display unit, an image display unit, a voice display unit, a touch screen control unit, a data loading unit and an information conversion unit. Compared with traditional vehicle-mounted display methods, systems and devices, the present invention realizes the fusion function between the control kernel system of the vehicle-mounted instrument display and the control Android system of the vehicle-mounted central control panel display screen, and achieves the synchronous operation and processing of data information between the kernel system and the Android system on the same memory, and the information interaction effect of the shared memory.

Description

Technical Field

[0001] The present invention relates to the field of data processing technology, and more specifically, to a vehicle-mounted fusion display method, system and device. Background Art

[0002] With the continuous development of the information age, in the automobile industry of transportation, the on-board display inside the car has been combined with the control of the network system to facilitate the user to operate the system to control the internal functions of the car. Due to the development of today's society, cars have become common in every family, and the number of cars in use is increasing day by day. On the on-board display, in order to improve the detailed information conveyed to the user by the car, the network control combined with the display has made great achievements in the development significance.

[0003] Currently, existing automobile on-board displays are generally display devices composed of an on-board instrument display and an on-board central control panel display. However, a large number of automobile mobile devices on the market currently use independent display operating systems for the on-board instrument display and the on-board central control panel display, which has the problems of delay in starting the automobile data loading unit, inability to execute operations on the information of the display device in parallel, high cost of dual systems, inability to interact with information between the on-board instrument display and the on-board central control panel display device, and inconvenient operation for users. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, the embodiments of the present invention provide a vehicle-mounted fusion display method, system and device, which overcome the problem of difficulty in source code extraction based on source code insertion, facilitate the subsequent output of function graphs and hybrid dynamic modeling methods, and ensure the accuracy of modeling and analysis data in the analysis method process based on multi-node automatic modeling, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a vehicle-mounted fusion display method, system and device, including a vehicle-mounted fusion display system, including a vehicle-mounted fusion display system, a vehicle-mounted fusion display method and a vehicle-mounted fusion display device, the vehicle-mounted fusion display system is integrated by a kernel system and an Android system through shared memory, the vehicle-mounted fusion display system includes a vehicle-mounted instrument display module, a vehicle-mounted central control panel display module and an information fusion module, the information fusion module includes a digital display unit, an image display unit, a voice display unit, a touch screen control unit, a data loading unit and an information conversion unit, the vehicle-mounted instrument display module runs on the kernel system, and is used to display the engine power, torque, fuel consumption, power reserve, coolant level warning light, mileage value and oil pressure value of the car, the vehicle-mounted central control panel display module is used to display the internal functions of the car, including positioning navigation, parking display image, voice-controlled air conditioning, playing music and video, touch screen selection service, camera control and voice broadcast, the information fusion module is used to share memory and receive and feedback the information controlled by the kernel system and the Android system at the same time, and execute to achieve dual-system interaction capability.

[0006] Furthermore, the kernel system is the access software for operating the on-board instrument display of the car, which is responsible for the display process, memory, car driver and control driver stability of the on-board instrument display. The Android system is a free and open source operating system based on the Linux kernel, which is used to control the on-board central control panel display. The information fusion module is based on shared memory technology, and the program communication between the kernel system under Unix and the Android system can process information in parallel. The purpose is to use the Linux kernel system with open source performance to be applied to the kernel system control of the car.

[0007] Furthermore, the digital display unit, the image display unit and the voice display unit are display data converted by the digital display unit when the system receives and processes digital signals, optical signals and electrical signals. Numbers and light are displayed on the vehicle instrument display; numbers, pictures, videos, voices and colors are displayed on the vehicle central control panel display. Both are composed of electrical components, electronic light-emitting components, integrated circuits and liquid crystal displays, and the vehicle display is controlled by the system. The touch screen control unit is composed of a touch screen detection device and a touch screen controller, which are used to detect the touch position and send the information of the specified position of the touch screen to the touch screen. The touch screen controller detects the received position information, converts it into touch point coordinates and sends it to the system processor for calculation. The data loading of the data loading unit is the process of turning on the vehicle fusion display system and starting the operation of the vehicle after the car is started. The information conversion of the information conversion unit refers to the conversion of information into information with purpose after the information is processed by the system and given execution instructions for information processing. The purpose is to efficiently process information in parallel through the information fusion module.

[0008] Furthermore, the vehicle-mounted fusion display method specifically includes the following steps:

[0009] S1. First, the vehicle instrument display is operated based on the kernel system, so as to connect the vehicle instrument display to the kernel operation control system;

[0010] S2. Running the vehicle central control panel display screen based on the Android system, with the purpose of connecting the vehicle central control panel display screen to the Android operation control system;

[0011] S3, then the kernel system controlled by the vehicle instrument display and the Android system controlled by the vehicle central control panel display are integrated by using shared memory technology to achieve system interaction, with the purpose of making the data processing of the kernel system and the Android system interoperable;

[0012] S4. The data formats of the two systems are stored in the same storage format, and the data is stored in the same memory space to achieve shared data. The purpose is to use a shared memory method for data interaction between the kernel system and the Android system;

[0013] S5. Finally, the relevant information on the vehicle instrument display and the vehicle central control panel display screen is synchronously integrated and displayed, with the aim of achieving the effect of synchronous access to information and improving the interactive performance between the two systems.

[0014] Furthermore, the shared memory communication method is extremely efficient, and its implementation methods are memory mapping and shared memory mechanism. Memory mapping is to map the memory in the kernel system to each address space of the process, and realize sharing through the Android system process, while the shared memory mechanism is completed through the semaphore protocol of other communication processes, and the shared data information is stored in the IPC shared area memory, providing a signal interaction environment between the kernel system and the Android system, with the purpose of implementing the shared memory technology using a computer-edited code language.

[0015] Furthermore, the Android system controls the vehicle's central control panel display screen to connect to the mobile phone APP to achieve signal interconnection. The specific operation steps are as follows:

[0016] A1. First, if your phone supports Android system, download the APP corresponding to your car;

[0017] A2. Then turn on the hotspot and Bluetooth of the mobile phone, the hotspot and Bluetooth of the car's central control panel display, and pair them with Bluetooth.

[0018] A3. Finally, the matching is successful, and the functional APP on the mobile phone is converted to the car's central control panel display screen for use.

[0019] Furthermore, the vehicle-mounted fusion display device includes a vehicle-mounted instrument display and a vehicle-mounted central control panel display screen, the vehicle-mounted instrument display includes an instrument display chassis, an instrument display inner groove is opened in the middle of the upper surface of the instrument display chassis, an engine tachometer is movably connected to the inside of the instrument display chassis on one side of the middle of the upper surface of the instrument display inner groove, a display light controller is movably connected to the inside of the instrument display chassis on the other side of the middle of the upper surface of the instrument display inner groove, a display light controller is fixedly connected to the outer side of the upper surface of the instrument display inner groove between the engine tachometer and the vehicle speedometer, and a glass cover is fixedly connected to the upper surface of the instrument display chassis. The purpose is to briefly summarize the physical device components of the vehicle-mounted instrument display.

[0020] Furthermore, the vehicle-mounted central control panel display screen includes a sensor touch screen, the central control panel machine is fixedly connected to the four sides of the lower surface of the sensor touch screen, the internal movably connected to the upper surface of the central control panel machine is an integrated circuit board, and the upper surface of the integrated circuit board is fixedly connected to an LED display. The purpose is to briefly outline the physical device components of the vehicle-mounted central control panel display screen.

[0021] Furthermore, the instrument display chassis and the integrated circuit board are respectively connected to the integrated circuit, I / O interface, power electronic components, sensors, control host, processor, digital signal converter and memory, with the purpose of describing the components connected to the vehicle display device and the equipment for network operation control.

[0022] Technical effects and advantages of the present invention:

[0023] Compared with traditional vehicle-mounted display methods, systems and devices, the present invention realizes the fusion function between the control kernel system of the vehicle-mounted instrument display and the control Android system of the vehicle-mounted central control panel display screen, achieves the synchronous operation and processing of data information between the kernel system and the Android system on the same memory, and the information interaction effect of shared memory.

[0024] Compared with the traditional vehicle-mounted fusion display method, system and device using virtual machine processing, the present invention directly adds shared memory technology in the kernel system and the Android system, reduces the latency of the data loading unit independently controlled by the independent vehicle-mounted display, and improves the interactive performance of the vehicle-mounted fusion display device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a block diagram of the vehicle-mounted fusion display method of the present invention;

[0026] Figure 2 A diagram of the vehicle-mounted fusion display system of the present invention;

[0027] Figure 3A diagram of a vehicle-mounted fusion display device according to the present invention;

[0028] Figure 4 It is a structural diagram of the vehicle instrument display of the present invention;

[0029] Figure 5 This is a structural diagram of the vehicle-mounted central control panel display screen of the present invention.

[0030] 1. Instrument display chassis; 2. Instrument display inner slot; 3. Engine tachometer; 4. Display light controller; 5. Speedometer; 6. Glass cover; 7. Sensor touch screen; 8. Central control panel; 9. LED display; 10. Integrated circuit board. DETAILED DESCRIPTION

[0031] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0032] At the same time, it should be understood that for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0033] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present application, its application, or uses.

[0034] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0035] It should be noted that like reference numerals and letters denote similar items in the following figures, so once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0036] Example 1

[0037] The present invention provides a vehicle-mounted fusion display method, system and device, including a vehicle-mounted fusion display system, a vehicle-mounted fusion display method and a vehicle-mounted fusion display device. The vehicle-mounted fusion display system is integrated by a kernel system and an Android system through shared memory. The vehicle-mounted fusion display system includes a vehicle-mounted instrument display module, a vehicle-mounted central control panel display module and an information fusion module. The information fusion module includes a digital display unit, an image display unit, a voice display unit, a touch screen control unit, a data loading unit and an information conversion unit. The vehicle-mounted instrument display module runs on the kernel system and is used to display the engine power, torque, fuel consumption, power storage, coolant level warning light, mileage value and oil pressure value of the vehicle. The vehicle-mounted central control panel display module is used to display the internal functions of the vehicle, including positioning navigation, parking display image, voice-controlled air conditioning, playing music and video, touch screen selection service, camera control and voice broadcasting. The information fusion module is used to share memory and receive and feedback the information controlled by the kernel system and the Android system at the same time, and execute to achieve dual-system interaction capability.

[0038] In this embodiment, it should be specifically explained that the kernel system is the access software for the vehicle to operate the on-board instrument display, which is responsible for the display process, memory, vehicle driver and control driver stability of the on-board instrument display. The Android system is a free and open source operating system based on the Linux kernel, which is used to control the on-board central control panel display. The information fusion module is based on shared memory technology, and the program communication between the kernel system under Unix and the Android system can process information in parallel, improve the data loading unit of the fused system, and reduce the delay of the system control data loading unit;

[0039] The shared memory refers to a large-capacity memory that can be accessed by different CPUs in a computer system with two or more processors. The shared memory technology uses the shmget function to create the shared memory, which is expressed in a computer programming language, such as

[0040] #include<sys / types.h>

[0041] #include<sys / shm.h>

[0042] #include<stdlib.h>

[0043] #define BUFSZ 4096

[0044] int main(void)

[0045] {int shm_id; / * shared memory identifier * /

[0046] shm_id=shmget(IPC_PRIVATE,BUFSZ,0666);

[0047] / / shm_id=shmget(999,BUFSZ,0666|O_CREAT);

[0048] if(shm_id<0){ / *Create shared memory* /

[0049] perror("shmget");

[0050] exit(1);}

[0051] printf("successfully created segment:%d\n",shm_id);

[0052] system("ipcs-m"); / *Call ipcs command to view IPC* /

[0053] exit(0);}.

[0054] In this embodiment, it is necessary to specifically explain that the digital display unit, the image display unit and the voice display unit are display data converted by the digital display unit when the system receives and processes digital signals, optical signals and electrical signals. Numbers and light are displayed on the vehicle instrument display; numbers, pictures, videos, voices and colors are displayed on the vehicle central control panel display; both are composed of electrical components, electronic light-emitting components, integrated circuits and liquid crystal displays, and the vehicle display is controlled by the system. The touch screen control unit is composed of a touch screen detection device and a touch screen controller, which are used to detect the touch position and send the information of the specified position of the touch screen to the touch screen. The touch screen controller detects the received position information, converts it into the touch point coordinates and sends it to the system processor for calculation. The data loading of the data loading unit is to open the vehicle fusion display system after the car is started, and start the program process of running the car. The information conversion of the information conversion unit refers to the conversion of information into information with purpose meaning after the information is processed by the system and given execution instructions for information processing;

[0055] The information conversion unit uses an A / D converter to convert the received analog signal, pulse signal and light signal into a digital signal. In the vehicle-mounted central control panel display module, the vehicle-mounted central control panel display is controlled by touch screen and sound. The vehicle-mounted central control panel display receives the sound signal through the acoustic wave sensor and converts it into a digital signal and transmits it to the CPU processor for operation. Then the information fusion module accesses the data from the shared memory and sends it for execution, and performs the information conversion unit on the vehicle-mounted central control panel display.

[0056] In this embodiment, it is necessary to specifically explain the vehicle-mounted fusion display method, which specifically includes the following steps:

[0057] 101. First, run the vehicle instrument display based on the kernel system;

[0058] In this embodiment, it is necessary to specifically explain that the kernel system is divided into Linux and QNX for the current automobile operating system. Linux is an open source, more powerful operating system with strong customization and development flexibility, and supports information systems with more applications and interfaces. QNX is a microkernel, embedded, non-open source, secure and real-time operating system. Compared with the two, Linux has better beneficial effects. The Linux kernel system is used in the main control system of the automobile. The on-board instrument display controls the instrument panel data through the kernel system, and displays the operating status of the automobile to the user in real time.

[0059] 102. Then run the vehicle central control panel display screen based on the Android system;

[0060] In this embodiment, it should be specifically explained that the Android system is an operating system developed based on Linux. It can be directly run on the car in combination with a mobile phone APP to quickly establish a car-mounted software environment. It has the characteristics of open source and a powerful mobile ecological environment and is suitable for mobile car equipment. The car-mounted central control panel display can connect to mobile phone data via Bluetooth and wireless network, map mobile phone functions to the central control panel display, and display the functions in the mobile phone APP through the car-mounted central control panel display.

[0061] 103. The kernel system controlled by the vehicle instrument display and the Android system controlled by the vehicle central control panel display are integrated using shared memory technology to achieve system interaction;

[0062] In this embodiment, it should be specifically explained that the shared memory means that multiple processes can access the same memory space at the same time, which is the fastest available IPC form. It is designed to achieve synchronization and mutual exclusion between signal processes and reduce memory consumption in large-scale data processing. IPC includes pipelines, FIFOs and signals. Shared memory is currently the fastest communication method. IPC is consistent with shared memory communication, and one memory is used to realize communication between multiple processes.

[0063] 104. Use the same storage format for the dual system data formats, and store the data in the same memory space to achieve shared data;

[0064] In this embodiment, it is necessary to specifically explain that the data format is used to describe the rules in the data storage files and records, and a binary data compression format or a character text format is used in the computer system. The storage format is to store the collected sound, image and video in the form of files. The data storage is to record the files generated in the data processing process, such as signal conversion, data processing, data model, etc., in a certain format on the storage medium. The shared data is a process in which different systems can read the data in other systems and perform various operations, calculations and analyses and meet the data sharing characteristics.

[0065] 105. Finally, the relevant information on the operation of the vehicle instrument display and the vehicle central control panel display screen is synchronously integrated and displayed.

[0066] In this embodiment, it should be specifically explained that synchronous fusion refers to accessing information in the same storage of shared memory. When the car starts running the system program at the same time, the information fusion module accesses the shared memory, calculates separately in the CPU, and then completes the process of data collection, data analysis, data processing and data storage in the system. Finally, the fused information is displayed on the vehicle instrument display controlled by the kernel system and on the vehicle central control panel display controlled by the Android system at the same time, so as to achieve the effect of synchronous information access and operation, and improve the interaction performance between the two systems.

[0067] In this embodiment, it should be specifically explained that the shared memory communication method is extremely efficient, and its implementation methods are memory mapping and shared memory mechanism. Memory mapping is to map the memory in the kernel system to each address space of the process, and realize sharing through the Android system process, while the shared memory mechanism is completed through the semaphore protocol of other communication processes, and the shared data information is stored in the IPC shared area memory, providing a signal interaction environment between the kernel system and the Android system;

[0068] There is an mmap() in the Linux kernel system that can map a file into the address space of a process. At this time, the process can read and write files by reading and writing the process space address to realize the function of information interaction. The mmap() uses the VMM in the virtualization technology, and an encrypted VPN connection is used in the mobile network to correspond to it. Although the virtualization technology is used to improve the computing power of the virtualized CPU, compared with the shared memory in this embodiment, the performance is reduced and there is information delay.

[0069] In this embodiment, it should be specifically explained that the Android system controls the vehicle-mounted central control panel display screen to connect to the mobile phone APP to achieve signal interconnection. The specific operation steps are as follows:

[0070] Step 1: First, if your phone supports the Android system, download the APP corresponding to the car;

[0071] Step 2: Then turn on the hotspot and Bluetooth of the mobile phone, the hotspot and Bluetooth of the car's central control panel display, and pair them with Bluetooth;

[0072] Step 3: After the matching is successful, convert the functional APP on the mobile phone to the car's central control panel display screen for use.

[0073] The mobile phone and the vehicle-mounted central control panel display screen realize signal interconnection. Signal interconnection refers to the connectivity of signals. Functional APPs on the mobile phone, such as Amap, QQ Music and various videos, can be displayed on the vehicle-mounted central control panel display screen. The most common and practical one is the navigation positioning system. The mobile phone positioning is connected to the vehicle-mounted central control panel display screen of the car, so that the user can plan the driving route by describing the destination by voice while driving. The vehicle-mounted central control panel display screen receives the signal from the sound wave sensor and displays the map route after processing by the system CPU.

[0074] In this embodiment, it should be specifically explained that the vehicle-mounted fusion display device includes a vehicle-mounted instrument display and a vehicle-mounted central control panel display screen, the vehicle-mounted instrument display includes an instrument display chassis 1, an instrument display inner groove 2 is opened in the middle of the upper surface of the instrument display chassis 1, an engine tachometer 3 is movably connected to the inside of the instrument display chassis 1 on one side of the middle of the upper surface of the instrument display inner groove 2, a display light controller 4 is movably connected to the inside of the instrument display chassis 1 on the other side of the middle of the upper surface of the instrument display inner groove 2, the upper surface of the instrument display inner groove 2 is fixedly connected to the display light controller 4 on the outside between the engine tachometer 3 and the vehicle speedometer 5, and a glass cover 6 is fixedly connected to the upper surface of the instrument display chassis 1.

[0075] In this embodiment, it should be specifically explained that the vehicle-mounted central control panel display screen includes a sensor touch screen 7, and the central control panel machine 8 is fixedly connected to the four sides of the lower surface of the sensor touch screen 7, and the internal movably connected to the upper surface of the central control panel machine 8 is an integrated circuit board 10, and the upper surface of the integrated circuit board 10 is fixedly connected to the LED display 9.

[0076] In this embodiment, it should be specifically explained that the instrument display chassis 1 and the integrated circuit board 10 are respectively connected to the integrated circuit, I / O interface, power electronic components, sensors, control host, processor, digital signal converter and memory.

[0077] The integrated circuit is to connect the microelectronic devices and wiring such as transistors, resistors, capacitors and inductors required for circuit connection together, and connect the automobile display device and the power supply device. The I / O interface is a connecting component that controls the exchange of information between the host and the automobile display device. The power supply electronic component is a device that provides uninterrupted current for the system and equipment, and realizes the functions of signal conversion, input, output and automobile display operation. The sensor is a detection device that receives light signals and sound wave signals, and can convert the received electrical signals into digital signals that can be processed by the CPU. The digital signal converter is used for conversion between analog signals and digital signals. The memory is used to place the information area of ​​the shared memory.

[0078] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vehicle-mounted fusion display system, characterized in that: It includes an on-board instrument display module, an on-board central control panel display module and an information fusion module. The information fusion module includes a digital display unit, an image display unit, a voice display unit, a touch screen control unit, a data loading unit and an information conversion unit. The on-board instrument display module runs on the kernel system and is used to display the car engine power, torque, fuel consumption, power reserve, coolant level warning light, mileage value and oil pressure value. The on-board central control panel display module is used to display the internal functions of the car, including positioning navigation, parking display image, voice-controlled air conditioning, music video playback, touch screen selection service, camera control and voice broadcast. The information fusion module is used to share memory and receive feedback on the information controlled by the kernel system and the Android system at the same time, and simultaneously execute to achieve dual-system interaction capabilities.

2. The vehicle-mounted fusion display system according to claim 1, characterized in that: The kernel system is the access software for operating the on-board instrument display of the car, which is responsible for the display process, memory, car driver and control driver stability of the on-board instrument display. The Android system is a free and open source operating system based on the Linux kernel, which is used to control the on-board central control panel display. The information fusion module is based on shared memory technology, and the program communication between the kernel system under Unix and the Android system can process information in parallel.

3. The vehicle-mounted fusion display system according to claim 1, characterized in that: The digital display unit, the image display unit and the voice display unit are display data converted by the digital display unit when the system receives and processes digital signals, optical signals and electrical signals. Numbers and light are displayed on the vehicle instrument display; numbers, pictures, videos, voices and colors are displayed on the vehicle central control panel display. Both are composed of electrical components, electronic light-emitting components, integrated circuits and liquid crystal displays, and the vehicle display is controlled by the system. The touch screen control unit is composed of a touch screen detection device and a touch screen controller, which are used to detect the touch position and send the information of the specified position of the touch screen to the touch screen. The touch screen controller detects the received position information, converts it into touch point coordinates and sends it to the system processor for calculation. The data loading of the data loading unit refers to the process of turning on the vehicle fusion display system and starting the operation of the vehicle after the car is started. The information conversion of the information conversion unit refers to the conversion of information into purposeful information after the information is processed by the system and given execution instructions for information processing.

4. A vehicle-mounted fusion display method, characterized in that: The specific steps include: S1. First, run the vehicle instrument display based on the kernel system; S2, based on the Android system to run the car center console display; S3, then the kernel system controlled by the vehicle instrument display and the Android system controlled by the vehicle central control panel display are integrated using shared memory technology to achieve system interaction; S4. Use the same storage format for the dual system data formats, and store the data in the same memory space to achieve shared data; S5. Finally, the relevant information on the operation of the vehicle instrument display and the vehicle central control panel display screen is synchronously integrated and displayed.

5. The vehicle-mounted fusion display method according to claim 4, characterized in that: The shared memory communication method is implemented in two ways: memory mapping and shared memory mechanism. Memory mapping is to map the memory in the kernel system to each address space of the process, and realize sharing through the Android system process. The shared memory mechanism is completed through the semaphore protocol of other communication processes, and the shared data information is stored in the IPC shared area memory, providing a signal interaction environment between the kernel system and the Android system.

6. The vehicle-mounted fusion display method according to claim 4, characterized in that: The Android system controls the vehicle's central control panel display screen to connect to the mobile phone APP to achieve signal interconnection. The specific operation steps are as follows: A1. First, if your phone supports Android system, download the APP corresponding to your car; A2. Then turn on the hotspot and Bluetooth of the mobile phone, the hotspot and Bluetooth of the car's central control panel display, and pair them with Bluetooth. A3. Finally, the matching is successful, and the functional APP on the mobile phone is converted to the car's central control panel display screen for use.

7. A vehicle-mounted fusion display device, characterized in that: The vehicle-mounted fusion display device comprises a vehicle-mounted instrument display and a vehicle-mounted central control panel display screen, wherein the vehicle-mounted instrument display comprises an instrument display chassis (1), an instrument display inner groove (2) is provided in the middle of the upper surface of the instrument display chassis (1), an engine tachometer (3) is movably connected to one side of the middle of the upper surface of the instrument display inner groove (2) inside the instrument display chassis (1), a display light controller (4) is movably connected to the other side of the middle of the upper surface of the instrument display inner groove (2) inside the instrument display chassis (1), the display light controller (4) is fixedly connected to the outer side of the upper surface of the instrument display inner groove (2) between the engine tachometer (3) and the vehicle speedometer (5), and a glass cover (6) is fixedly connected to the upper surface of the instrument display chassis (1).

8. The vehicle-mounted fusion display device according to claim 7, characterized in that: The vehicle-mounted central control panel display screen comprises a sensor touch screen (7), the lower surface of the sensor touch screen (7) is fixedly connected to a central control panel machine (8) on all sides, the upper surface of the central control panel machine (8) is internally movably connected to an integrated circuit board (10), and the upper surface of the integrated circuit board (10) is fixedly connected to an LED display (9).

9. The vehicle-mounted fusion display device according to claim 8, characterized in that: The instrument display chassis (1) and the integrated circuit board (10) are respectively connected to an integrated circuit, an I / O interface, a power supply electronic component, a sensor, a control host, a processor, a digital signal converter and a memory.

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