Novel vehicle-mounted navigation integrated board

Abstract

The embodiment of the utility model discloses a novel vehicle-mounted navigation integrated board which comprises an Android system CPU processing chip circuit, a PMU power supply processing circuit, an MCU, a power amplifier circuit, a 5GWiFi / BT circuit, a TF card interface, a USB interface, a front camera input interface, a reversing video input interface, a microphone input interface, an MIPI screen, a touch screen and a video processing circuit. The Android system CPU processing chip circuit is electrically connected with the PMU power supply processing circuit, the MCU, the power amplifier circuit, the 5GWiFi / BT circuit, the MIPI screen, the touch screen, the video processing circuit, the TF card interface, the USB interface, the front camera input interface and the microphone input interface, and the reversing video input interface is electrically connected with the video processing circuit. According to the utility model, multiple functions of traffic, entertainment, office, communication and the like are integrated, and the intelligent cabin requirements of users can be met; the development progress of the automobile end can be accelerated, the time cost is reduced, and the system can be promoted to the market more quickly.

Description

Technical Field

[0001] The utility model relates to the field of vehicle-mounted electronics, in particular to a novel vehicle-mounted navigation integrated board. Background Art

[0002] In recent years, fueled by both market trends and policy initiatives, new energy vehicles have surged in popularity, while the number of gasoline-powered vehicles on the road has steadily decreased. This situation is similar to the situation a decade ago, when smartphones replaced feature phones with overwhelming force. To gain a foothold in this competitive landscape, traditional automakers and the rapidly emerging "new forces" have taken the new energy vehicle industry to new heights.

[0003] With the advancement of electrification, intelligence, and connectivity in vehicles, the automotive operating system has become one of the most crucial components. The degree of electrification in a vehicle determines its intelligence level, overall performance, safety, and comfort. Against this backdrop, the concept of software-defined cars has emerged. Automakers, driven by the need to build a software ecosystem, are continuously launching new automotive software platforms, leading to a flourishing development of automotive operating systems.

[0004] Therefore, people hope that the car navigation integrated board on the car can have multiple functions such as transportation, entertainment, office, communication, etc. However, the existing car navigation integrated board has relatively single functions and cannot meet the user's smart cockpit needs. Utility Model Content

[0005] The technical problem to be solved by the embodiments of the present utility model is to provide a new vehicle-mounted navigation integrated board to meet the user's demand for a smart cockpit.

[0006] In order to solve the above technical problems, an embodiment of the utility model proposes a new type of vehicle-mounted navigation integrated board, including an Android system CPU processing chip circuit, a PMU power supply processing circuit, an MCU, a power amplifier circuit, a 5GWiFi / BT circuit, a TF card interface, a USB interface, a front camera input interface, a reversing video input interface, a microphone input interface, a MIPI screen, a touch screen, and a video processing circuit. The Android system CPU processing chip circuit is electrically connected to the PMU power supply processing circuit, the MCU, the power amplifier circuit, the 5GWiFi / BT circuit, the MIPI screen, the touch screen, the video processing circuit, the TF card interface, the USB interface, the front camera input interface, and the microphone input interface, and the reversing video input interface is electrically connected to the video processing circuit.

[0007] Furthermore, it also includes a CVBS video input interface, which is electrically connected to the video processing circuit.

[0008] Furthermore, the Android system CPU processing chip circuit uses the Allwinner A133 chip.

[0009] Furthermore, it also includes an FM transmitting circuit, which is electrically connected to the Android system CPU processing chip circuit.

[0010] Furthermore, it also includes a Bluetooth audio transmitting circuit, which is electrically connected to the Android system CPU processing chip circuit.

[0011] Furthermore, it also includes a G-mouse module interface, which is electrically connected to the Android system CPU processing chip circuit.

[0012] The beneficial effects of the present invention are as follows: the present invention integrates multiple functions such as transportation, entertainment, office, and communication, and can meet the user's demand for a smart cockpit; the present invention can speed up the development progress of the car side, reduce time costs, and can be brought to market faster. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural block diagram of a novel vehicle-mounted navigation integrated board according to an embodiment of the present utility model.

[0014] Figure 2 It is a structural block diagram of the audio part of an embodiment of the present utility model.

[0015] Figure 3 4 is a circuit diagram of a PMU power supply processing circuit according to an embodiment of the present utility model.

[0016] Figure 4 It is a circuit diagram of the USB interface of an embodiment of the present utility model.

[0017] Figure 5 It is a circuit diagram of the reversing video input interface of an embodiment of the utility model.

[0018] Figure 6 It is a circuit diagram of the G-mouse module interface of an embodiment of the present utility model.

[0019] Figure 7 It is a circuit diagram of the TF card interface of an embodiment of the present utility model.

[0020] Figure 8 This is a circuit diagram of the microphone input interface of an embodiment of the present utility model.

[0021] Figure 9 It is a circuit diagram of the MCU of an embodiment of the present utility model.

[0022] Figure 10 It is a circuit diagram of a power amplifier circuit according to an embodiment of the present utility model.

[0023] Figure 11 It is a circuit diagram of a 5G WiFi / BT circuit according to an embodiment of the present invention.

[0024] Figure 12 It is a circuit diagram of a Bluetooth audio transmitting circuit according to an embodiment of the present utility model.

[0025] Figure 13 It is a circuit diagram of the FM transmitting circuit of an embodiment of the utility model.

[0026] Figure 14 This is a circuit diagram of the front camera input interface of an embodiment of the present utility model.

[0027] Figure 15 It is a circuit diagram of a video processing circuit according to an embodiment of the present utility model. DETAILED DESCRIPTION

[0028] It should be noted that, unless there is a conflict, the embodiments in this application and the features described in the embodiments can be combined with each other. The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] In the embodiments of the present invention, if there are directional indications (such as up, down, left, right, front, back, etc.), they are only used to explain the relative position relationship and movement status of the various components under a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0030] In addition, in this utility model, the terms "first," "second," etc. 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. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one of these features.

[0031] Please refer to Figures 1 to 15 The new vehicle-mounted navigation integrated board of the embodiment of the utility model includes an Android system CPU processing chip circuit, a PMU power supply processing circuit, an MCU, a power amplifier circuit, a 5G WiFi / BT circuit, a TF card interface, a USB interface, a front camera input interface, a reversing video input interface, a microphone input interface, a MIPI screen, a touch screen, a video processing circuit, a DDR memory, and an eMMC memory.

[0032] The Android system CPU processing chip circuit is electrically connected to the PMU power processing circuit, MCU, power amplifier circuit, 5G WiFi / BT circuit, MIPI screen, touch screen, video processing circuit, TF card interface, USB interface, front camera input interface, microphone input interface, and the reverse video input interface is electrically connected to the video processing circuit. The MCU can be an STM32_MCU, which executes various functional operation instructions of the entire system. The Android system CPU processing chip circuit uses the Allwinner A133 chip (a quad-core ARM Cortex-A53 processor with a GE8300 CPU). The quad-core Cortex-A53 CPU has a main frequency of 1.5GHz and a built-in GE8300 @ 504NHz GPU. It supports resolutions up to 1920*1200P and supports two USB, six UART, and three SPI peripheral interfaces. The PMU power processing circuit outputs the various voltages required by various circuit chips: 3V3, 2V5, 1V8, 1V2, 1V1, and 0.9V.

[0033] The video processing circuit can use an AHD video processing chip: it uses a high-definition analog video decoding chip with a bidirectional data channel and supports HD-TVI720P input; when the user uses the reversing rearview function, the rearview camera outputs the video signal to the AHD video processing chip for processing, and then converts it into a BT656 signal and transmits it to the A133 main control chip for processing. After CPU video decoding processing, the video content of the rearview camera is transmitted to the MIPI screen through the MIPI signal for display.

[0034] DDR Memory: DDR3 RAM is used for the bootloader, and all tasks are performed by DDR, including system operations and application runtime space. eMMC memory stores status information such as the operating system and applications. The power amplifier circuit utilizes a new Class D stereo audio amplifier chip with uncoupled outputs and no low-pass filter. This chip features short-circuit protection. If an output-to-output or output-to-ground short is detected, the chip automatically shuts down, preventing damage. Once the short is cleared, the device turns itself back on. With a 4 ohm load and a 5V power supply, it can deliver 3W of output power to directly drive speakers, reducing the solution's cost and PCB space.

[0035] The 5G WiFi / BT circuit adopts a single-chip solution integrating IEEE802.11a / b / g / n / ac / ax WiFi and Bluetooth 5.4. The chip has a built-in Cortex-M4F CPU+MPU, FPU, PMU, etc.; fully integrated RF, modem and MAC, supports 2.4 / 5.8G dual-band WiFi6 and Bluetooth 5.4, and also supports STA, AP, and Wi-Fi direct modes; it has the characteristics of high reliability, high integration, ultra-low power consumption, and excellent RF indicators.

[0036] The USB interface includes a USB 2.0 and a TYPE-C 2.0 interface, and the PMU power supply processing circuit is electrically connected with the TYPE-C 2.0 interface. After the TYPE-C 2.0 interface inputs 5V power, the PMU power supply processing circuit outputs various power voltages required by the system. The MCU sends a start-up instruction to each chip, the master CPU reads a boot program from the eMMC memory, reads the boot program into the CPU internal RAM, and completes the initialization configuration of the memory in the process of executing the boot program; after the initialization is completed, the system in the eMMC memory is copied to the DDR memory, and the operating system is run in the DDR memory. During the running of the system, the initialization of other peripheral chips is completed, at this time, the external MIPI screen displays the start-up picture, and when the operating system is normally started, the MIPI screen displays the operation interface, at this time, the operation interface can be operated through the touch screen, and the corresponding program icon is clicked to run the corresponding function.

[0037] As an implementation mode, the new vehicle-mounted navigation integrated board further comprises a CVBS video input interface, and the CVBS video input interface is electrically connected with the video processing circuit.

[0038] As an implementation mode, the new vehicle-mounted navigation integrated board further comprises an FM transmitting circuit, and the FM transmitting circuit is electrically connected with the Android system CPU processing chip circuit. The FM transmitting circuit adopts a single-chip stereo FM transmitter, supports 76MHz-108MHz full-band tuning, has the advantages of automatic PA output power calibration and low power consumption, and the like; the FM transmitting function can transmit the audio signal of the portable navigation (PND) integrated board through the FM frequency modulation stereo signal, and the headrest screen device can be synchronized to the sound of the in-vehicle central control navigation, radio or other radio equipment as a receiving object.

[0039] As an implementation mode, the new vehicle-mounted navigation integrated board further comprises a Bluetooth audio transmitting circuit, and the Bluetooth audio transmitting circuit is electrically connected with the Android system CPU processing chip circuit. The Bluetooth audio transmitting circuit supports a Bluetooth 5.0 dual-mode module, provides an audio and data communication system completely compatible with Bluetooth BR / EDR and LE; is internally integrated with an application processor, an embedded flash memory, a high-performance stereo encoder, a power management subsystem, an I2S / LED driver and an A2DP audio transmission function; and adopts a UART port to communicate with the A133 master control chip CPU. When the original vehicle machine Bluetooth and the vehicle-mounted navigation (PND) integrated board Bluetooth are connected, the audio can be transmitted to the original vehicle machine Bluetooth to sound out through the loudspeaker by operating the system interface of the vehicle-mounted navigation (PND) integrated board.

[0040] As an implementation method, the novel vehicle-mounted navigation integrated board further includes a G-mouse module interface, which is electrically connected to the Android system CPU processing chip circuit.

[0041] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new type of vehicle navigation integrated board, characterized in that: It includes an Android system CPU processing chip circuit, a PMU power supply processing circuit, an MCU, a power amplifier circuit, a 5G WiFi / BT circuit, a TF card interface, a USB interface, a front camera input interface, a reversing video input interface, a microphone input interface, a MIPI screen, a touch screen, and a video processing circuit. The Android system CPU processing chip circuit is electrically connected to the PMU power supply processing circuit, the MCU, the power amplifier circuit, the 5G WiFi / BT circuit, the MIPI screen, the touch screen, the video processing circuit, the TF card interface, the USB interface, the front camera input interface, and the microphone input interface, and the reversing video input interface is electrically connected to the video processing circuit.

2. The novel vehicle-mounted navigation integrated board according to claim 1, characterized in that: It also includes a CVBS video input interface, which is electrically connected to the video processing circuit.

3. The novel vehicle-mounted navigation integrated board according to claim 1, characterized in that: The Android system CPU processing chip circuit uses the Allwinner A133 chip.

4. The novel vehicle-mounted navigation integrated board according to claim 1, characterized in that: It also includes an FM transmitting circuit, which is electrically connected to the Android system CPU processing chip circuit.

5. The novel vehicle-mounted navigation integrated board according to claim 1, characterized in that: It also includes a Bluetooth audio transmitting circuit, which is electrically connected to the Android system CPU processing chip circuit.

6. The novel vehicle-mounted navigation integrated board according to claim 1, characterized in that: It also includes a G-mouse module interface, which is electrically connected to the Android system CPU processing chip circuit.

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