CN110557150A - vehicle terminal - Google Patents

Abstract

The present invention provides a vehicle-mounted terminal. The vehicle-mounted terminal includes: a main antenna for sending and receiving cellular wireless signals; a cellular communication module for communicating with a cellular network; a first storage module for storing data; a rear-view camera device for capturing images and/or video of the rear of the vehicle; a plurality of cameras for capturing images and/or video of the vehicle's surroundings; and a main processor and display screen. The vehicle-mounted terminal of the present invention integrates the three functions of T-Box, 360 surround view and streaming media rearview mirror module. Compared with the three functions, the respective functions are realized separately, the devices with overlapping functions are omitted, and the space occupied by the devices is reduced. While effectively utilizing resources, it improves system interaction efficiency and reliability, and reduces overall development costs.

Description

vehicle terminal

technical field

The present invention mainly relates to the technical field of automobiles, in particular to a vehicle-mounted terminal.

Background technique

The Internet of Vehicles is an emerging technology that uses information and communication technology to realize the interconnection and interconnection of vehicles, vehicles and vehicles, vehicles and roads, vehicles and people, and vehicles and service platforms. In order to realize these interconnections in the Internet of Vehicles technology, the technology currently used is usually implemented by setting a T-Box (Telematics Box) in the car. Fig. 1 is the basic block diagram of the existing T-Box. Referring to Figure 1, T-Box mainly includes a cellular communication module and a processor. The cellular communication module is connected with the main antenna, diversity antenna, satellite navigation antenna and eSIM card to realize cellular communication and satellite positioning. The cellular communication module is also connected with the wireless local area network module to realize wireless local area network communication and/or wireless local area network sharing. The T-Box also includes a storage module, an audio codec module and a power amplifier module, and the cellular communication module is also connected with the storage module, the audio codec module and the power amplifier module to realize multimedia playback. The processor is connected with the cellular communication module, and is mainly used to control the cellular communication module to realize various actions, such as performing cellular communication, satellite positioning, playing multimedia, etc. In addition, the processor also receives an ignition signal, which serves as a trigger signal for the processor to start working. Of course, the T-Box also includes a power supply module connected to the battery to provide power to the components in the T-Box.

The streaming media rearview mirror module collects images behind the car, which can present the situation behind the car in real time, expand the rearview field of view, and reduce rearview blind spots. Fig. 2 is a basic block diagram of an existing streaming media rearview mirror module. With reference to shown in Figure 2, the streaming media rearview mirror module includes a rearview camera, a main processing unit (MPU), a microcontroller (MCU), a memory, a storage module, a power management module, a power supply module and an interior rearview mirror (comprising a display screen), etc. The rear view camera is located at the rear of the vehicle and is used to collect images behind the vehicle. The main processor processes the images collected by the rear view camera and presents them to the driver through the interior rear view mirror. The main processor is also respectively connected with the memory, the storage module and the power management module, so as to assist in realizing the processing function of the rear image by the main processor. The microcontroller is mainly used to control the main processor and other components to start, shut down, start processing images, stop processing images and other operations according to the ignition signal. The power supply module is used to provide power to various components in the streaming media rearview mirror module.

When the vehicle is starting, turning, parking, meeting, avoiding obstacles, etc., due to the existence of driving blind spots, the driver cannot observe the situation in the area closer to the vehicle body, and accidents such as scratches, collisions, and crushing are prone to occur. In order to avoid the occurrence of the above-mentioned accidents, some existing vehicles are equipped with a 360-degree surround view module, which can display the situation around the vehicle and assist the driver to understand the situation around the vehicle. Fig. 3 is a basic block diagram of an existing 360 surround view module. Referring to Figure 3, the 360-degree surround view module includes four cameras, four-input and one-out switch, main processor (MPU), microcontroller (MCU), memory, storage module, power management module, power supply module, etc. The four cameras are arranged at the front, rear, left, and right sides of the vehicle respectively to obtain images of road conditions in front, rear, left, and right of the vehicle. The road condition images captured by the four cameras are sent to the main processor in a time-sharing manner through the four-in-one-out switch. The main processor processes these road condition images, stitches them into images that can show the surrounding conditions of the vehicle, and presents them to the driver through the vehicle. The main processor is also respectively connected with the memory, the storage module and the power management module, so as to assist in realizing the processing function of the main processor on the road condition image. The microcontroller is mainly used to control the main processor and other components to start, shut down, start processing images, stop processing images and other operations according to the ignition signal. The power module is used to provide power to the components in the 360 surround view module.

In order to realize 360 surround view, car networking interconnection and streaming media rearview mirror, the existing practice is to install 360 surround view, T-Box and streaming media rearview mirror modules on the vehicle at the same time, but this method has high cost and requires at least The disadvantage of taking up three interfaces. Therefore, there is an urgent need for a low-cost vehicle-mounted terminal to realize the functions of the 360 surround view, T-Box and streaming media rearview mirror modules.

Contents of the invention

The technical problem to be solved by the present invention is to provide a vehicle-mounted terminal, which has the functions of 360-degree surround view, T-Box and streaming media rearview mirror module, and has the functions of fully utilizing resources, reducing occupied space, improving system interaction efficiency and reliability, Reduce the overall cost and other advantages.

In order to solve the above technical problems, the present invention provides a vehicle-mounted terminal, comprising:

The main antenna is used to send and receive cellular wireless signals;

A cellular communication module, connected to the main antenna, for cellular network communication;

The first storage module is used for storing data;

A rear-view camera device for acquiring images and/or videos behind the vehicle equipped with the vehicle-mounted terminal; and

multiple camera devices for capturing images and/or video of the vehicle's surroundings;

A satellite navigation antenna, connected to the cellular communication module, for receiving satellite positioning signals; and

The main processor is respectively connected to the first storage module, the rear view camera device and the plurality of camera devices, and is used to process the image and/or video acquired by the rear view camera device, and output the processed rear view camera device. The image and/or video captured by the video camera device; it is also used to process the image and/or video captured by the multiple camera devices, and output the processed image and/or video;

The display screen is connected with the main processor and is used for displaying images and/or videos acquired by the rear view camera device.

In at least one embodiment of the present invention, the vehicle-mounted terminal also includes:

The diversity antenna is connected with the cellular communication module and is used for diversity sending and receiving of cellular wireless signals.

In at least one embodiment of the present invention, the vehicle-mounted terminal also includes:

Wireless LAN antenna, used to send and receive wireless LAN signals;

The wireless local area network module is respectively connected with the wireless local area network antenna and the cellular communication module for realizing wireless local area network communication.

In at least one embodiment of the present invention, the vehicle-mounted terminal also includes:

An eSIM card, connected to the cellular communication module, is used to store user identification information; and/or

memory, connected to the main processor, for providing temporary storage space for data and/or instructions to be processed by the main processor;

The second storage module is connected with the cellular communication module and used for storing data.

In at least one embodiment of the present invention, the vehicle-mounted terminal also includes:

The audio codec module is connected with the cellular communication module for encoding and decoding audio data; the power amplifier module is connected with the cellular communication module for amplifying the audio signal output by the cellular communication module and amplifying the amplified The audio signal is output.

In at least one embodiment of the present invention, the vehicle-mounted terminal also includes:

A microcontroller, connected to the cellular communication module, the main processor and the power amplifier module, is used to control the actions of the cellular communication module and the main processor, and to control the power amplifier module;

The data port is connected with the microcontroller, and is used to realize data interaction between the microcontroller and external devices.

In at least one embodiment of the present invention, the vehicle-mounted terminal also includes:

An acceleration sensor, connected with the microcontroller, is used to sense the acceleration of the vehicle.

In at least one embodiment of the present invention, the vehicle-mounted terminal also includes:

A USB port is connected to the cellular communication module for realizing data interaction between the cellular communication module and external devices; and/or

The LVDS port is connected with the main processor, and is used for realizing data interaction between the main processor and external devices.

In at least one embodiment of the present invention, the vehicle-mounted terminal also includes:

A power module, used to provide power for each component in the vehicle terminal; and/or

The power management module is connected with the main processor, and is used for power management of at least a part of components in the vehicle-mounted terminal according to the instructions of the main processor.

In at least one embodiment of the present invention, the vehicle-mounted terminal also includes:

The multi-input and one-out switching switch is connected to the plurality of camera devices and the main processor respectively, and is used to select one of the plurality of camera devices in a time-sharing manner, and to use the images and/or images acquired by the selected camera device or video output to the host processor. Compared with the prior art, the present invention has the following advantages:

The vehicle-mounted terminal of the present invention has the functions of 360-degree surround view, T-Box and streaming media rearview mirror module. Compared with the combination of these three modules of 360-degree surround view, T-Box and streaming media rearview mirror module, it has the functions of 360-degree surround view, T-Box and streaming media rearview mirror module. The technical scheme of the function of T-Box and streaming media rearview mirror module, vehicle-mounted terminal of the present invention has saved the cellular communication module, main processor, microcontroller, power supply module and peripheral circuit with overlapping function, has fully utilized resources , Reduce occupied space, improve system interaction efficiency and reliability, and reduce overall cost.

Description of drawings

Fig. 1 is the basic block diagram of the existing T-Box.

Fig. 2 is a basic block diagram of an existing streaming media rearview mirror module.

Fig. 3 is a basic block diagram of an existing 360 surround view module.

Fig. 4 is a basic block diagram of a vehicle terminal in some embodiments of the present invention.

Explanation of reference signs

100-vehicle terminal;

101-cellular communication module;

102 - microcontroller;

103 - main antenna;

104 - satellite navigation antenna;

105-diversity antenna;

106-wireless local area network antenna;

107-wireless local area network module;

108 - eSIM card;

109 - the second storage module;

110-audio codec module;

111-power amplifier module;

112 - USB port;

113 - main processor;

114-DVR camera device;

115 - memory;

116-the first storage module;

117-power management module;

118-LVDS port;

119 - data port;

120 - rear view camera device;

121-display screen;

122-acceleration sensor;

123-power module;

131 - a plurality of camera devices;

131-1 camera device (front);

131-2 camera device (rear);

131-3 camera device (left);

131-4 camera device (right);

132-Multi-input and one-out switch.

Detailed ways

In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings.

In the following description, many specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways than those described here, so the present invention is not limited by the specific embodiments disclosed below.

Certain terms are used throughout the description and claims to refer to particular system components. As will be understood by those skilled in the art, different companies may refer to a component by different names. This document does not seek to distinguish between components that have different names but have the same function. In the description and claims, the terms "comprises" and "comprises" are used in an open-ended fashion, and thus should be construed as "including, but not limited to...".

As indicated in this application and claims, the terms "a", "an", "an" and/or "the" do not refer to the singular and may include the plural unless the context clearly indicates an exception. Generally speaking, the terms "comprising" and "comprising" only suggest the inclusion of clearly identified steps and elements, and these steps and elements do not constitute an exclusive list, and the method or device may also contain other steps or elements.

In addition, each embodiment of the content described below has one or more technical features respectively, but this does not mean that the inventor must implement all the technical features in any embodiment at the same time, or can only implement different embodiments separately. Some or all of the technical features. In other words, on the premise that the implementation is possible, those skilled in the art can selectively implement some or all of the technical features in any embodiment according to the disclosure of the present invention and depending on design specifications or implementation requirements, or Selectively implement a combination of some or all of the technical features in multiple embodiments, thereby increasing the flexibility of the implementation of the present invention.

It will be understood that when an element is referred to as being "on," "connected to," "coupled to" or "contacting" another element, it can be directly on the other element. On, connected or coupled to, or in contact with, the other component, or there may be an intervening component. In contrast, when an element is referred to as being "directly on," "directly connected to," "directly coupled to" or "directly contacting" another element, there are no intervening elements present. Likewise, when a first component is referred to as being "electrically contacting" or "electrically coupled to" a second component, there exists an electrical path between the first component and the second component that allows electrical current to flow. This electrical path may include capacitors, coupled inductors, and/or other components that allow current to flow, even without direct contact between conductive components.

As introduced in the background technology section, the existing 360-degree surround view, T-Box, and streaming media rearview mirror modules are all independent module products, each performing its corresponding function. These three module products all have the same parts such as processor (CPU), power supply circuit, connector, etc. When these three module products are used to jointly realize the functions of the T-Box and the streaming media rearview mirror module, the same parts in the three module products are repeated, and the interaction between the product modules is realized by connecting the wire harness, so , there will be problems such as hardware cost waste, more space occupation, low interaction efficiency and low reliability. In order to overcome these problems, the present invention proposes a vehicle-mounted terminal with the functions of T-Box and streaming media rearview mirror module at the same time, which can make full use of resources, reduce occupied space, improve system interaction efficiency and reliability, and reduce overall cost.

Fig. 4 is a basic block diagram of a vehicle terminal in some embodiments of the present invention. Referring to FIG. 4 , the vehicle-mounted terminal 100 may include a cellular communication module 101 , a main processor 113 , a main antenna 103 , a first storage module 116 , a rearview camera 120 , multiple cameras 131 and a multi-input-one-out switch 132 . The main processor 113 and the main antenna 103 are respectively connected with the cellular communication module 101 . The first storage module 116 and the rear view camera device 120 are respectively connected to the main processor 113 .

Optionally, in some embodiments of the present invention, the vehicle-mounted terminal may further include more structures, such as a DVR camera device 114 .

The main antenna 103 can be used to send and receive cellular wireless signals, so as to cooperate with the cellular communication module 101 to realize cellular network communication. In some embodiments, the cellular network may be 2G (eg, GSM, IS-95, IS-136, IDEN, PDC, etc.), 3G (eg, W-CDMA, CDMA-2000, TD-SCDMA, WiMAX, etc.), 4G ( For example, a cellular network of standards such as LTE FDD, LTE TDD, etc. Correspondingly, the cellular wireless signal is also a wireless signal conforming to one or more standards of 2G, 3G, and 4G. It can be understood that the cellular network communication may, for example, include voice communication, data communication, short message (Short Message Service, SMS) communication, or any combination thereof.

Multiple camera devices 131 may be used to acquire images and/or videos around a vehicle (hereinafter referred to as "vehicle") carrying the vehicle-mounted terminal of this embodiment. Preferably, the multiple camera devices 131 are mainly used to acquire images and/or videos of the road surface. In some embodiments, the plurality of camera devices 131 may be, for example, visible light cameras, infrared cameras, laser radars, and the like. In some embodiments, the plurality of camera devices 131 may all be wide-angle cameras. In some embodiments, the plurality of camera devices 131 may be partially wide-angle cameras and partially medium-focus cameras. Wherein, the viewing angle range of the wide-angle camera may be 140°-180°, and the viewing angle range of the medium-focus camera may be 90°-140°.

In some embodiments, the plurality of camera devices 131 may include, for example, a camera device 131-1, a camera device 131-2, a camera device 131-3, and a camera device 131-4. The camera device 131-1 can be used to acquire images and/or videos in front of the vehicle. The camera device 131-2 can be used to acquire images and/or videos behind the vehicle. The camera device 131-3 can be used to capture images and/or videos of the left side of the vehicle. The camera 131-4 may be used to capture images and/or video of the right side of the vehicle. In some embodiments, the camera device 131-1 for acquiring images and/or videos in front of the vehicle can be installed on the front grille or the front bumper. In some embodiments, the camera device 131-2 for acquiring images and/or videos behind the vehicle may be installed on the trunk lid or the rear bumper. In some embodiments, the camera device 131-3 for capturing images and/or videos on the left side of the vehicle may be set on the left rearview mirror. In some embodiments, the camera device 131-4 for capturing images and/or videos on the right side of the vehicle may be set on the right rearview mirror.

It can be understood that the plurality of camera devices 131 may include more than four camera devices. The present invention does not limit the number of camera devices included in the plurality of camera devices 131, as long as the multiple camera devices can acquire images and/or videos around the vehicle, and the main processor 103 can splice these images and/or videos deal with.

The first storage module 116 is connected with the main processor 113 for storing data. For example, the first storage module 116 can store image data and/or video data captured by the DVR camera 114 . For another example, the first storage module 116 may store image data and/or video data processed by the main processor 113 . In some embodiments, the first storage module 116 may include, for example, an eMMC memory, a flash memory chip, an SSD memory, etc. disposed in the vehicle terminal 100, or any combination thereof. The first storage module 116 may also be a TF card, an MMC card, an SD card, etc., or any combination thereof, disposed in the card slot of the vehicle-mounted terminal 100 . In some embodiments, the first storage module 116 may be connected to the main processor 113 through an SDIO (Secure Digital Input/Output) interface.

The rear view camera device 120 may be used to capture images and/or videos of the rear of the vehicle. In some embodiments, the rear view camera device 120 may be, for example, a visible light camera, an infrared camera, a laser radar, and the like. In some embodiments, the rear view camera device 120 may be a wide-angle camera (for example, a viewing angle greater than or equal to 60°), a medium-focus camera (for example, a viewing angle range of 24°-60°), or a telephoto camera (for example, a viewing angle range of 24° or less) . In some embodiments, the rear view camera device 120 may include one or more cameras, for example, three cameras arranged at intervals to form binocular vision. It can be understood that the rear view camera device 120 can be arranged above the rear license plate, below the rear license plate, on the rear bumper, etc. of the vehicle.

The main processor 113 can be used to process the images and/or videos captured by the rear view camera device 120 . The main processor 113 can also output the processed image and/or video, for example, to a display screen for streaming media display at the rear of the vehicle. In some embodiments, the processing performed by the main processor 113 on the image and/or video captured by the rear view camera device 120 may be encoding, compression, noise reduction, sharpening, etc., or any combination thereof.

The main processor 103 may be configured to process the images and/or videos acquired by the plurality of camera devices 111, and output the processed images and/or videos. There may be various specific ways in which the main processor 103 processes the acquired images and/or videos. For example, in some embodiments, the main processor 103 stitches the images and/or videos captured by the multiple camera devices 131 to form a panoramic bird's-eye view image and/or video around the vehicle. Preferably, in some of the above-mentioned embodiments, in the image and/or video after stitching, the vehicle (for example, the top view image of the vehicle) is located in the center of the panoramic top view image and/or video, with multiple cameras The images and/or videos acquired by the device 131 are stitched and the stitched images and/or videos are located around the vehicle. It can be understood that the processing performed by the main processor 103 on the images and/or videos acquired by the multiple camera devices 131 may also be distortion correction, noise reduction, sharpening, and the like. Of course, the processing performed by the main processor 103 on the images and/or videos acquired by the plurality of camera devices 131 may include any combination of one or more of the above processing. Moreover, the processing performed by the main processor 103 on the images and/or videos acquired by the plurality of camera devices 131 is not limited to the several processing methods mentioned above. For example, in some embodiments, the main processor 103 may also highlight locations where the vehicle may be scratched or collided in the stitched image and/or video.

Optionally, in some embodiments, the vehicle-mounted terminal may also have a DVR camera device 114 for acquiring images and/or videos in front of the vehicle. In some embodiments, the DVR camera device 114 may be, for example, a visible light camera, an infrared camera, a laser radar, and the like. In some embodiments, the DVR camera 114 can be a wide-angle camera (for example, a viewing angle greater than or equal to 60°), a medium-focus camera (for example, a viewing angle range of 24°-60°), or a telephoto camera (such as a viewing angle range of 24° or less). Preferably, the DVR camera device 114 is a super wide-angle camera, and its viewing angle may be greater than or equal to 100°, 120°, 140°, and so on. In some embodiments, the DVR camera device 114 may include one or more cameras, for example, three cameras arranged at intervals to form binocular vision. It can be understood that the DVR camera device 114 can be installed on the vehicle's rearview mirror (such as left rearview mirror, right rearview mirror, central interior rearview mirror, etc.), front grille, bumper and so on. In some embodiments, the DVR camera device 114 may also acquire images and/or images of at least one of the rear, left and right sides of the vehicle.

Optionally, in these embodiments, the main processor 113 may also be used to process images and/or videos acquired by the DVR camera device 114 . The main processor 113 can also store the processed image and/or video in the first storage module 116 to realize driving record. The main processor 113 can also send the processed images and/or videos to the cellular communication module 101, and the cellular communication module 101 sends the processed images and/or videos to the cloud to provide data basis for automatic driving training. It can be understood that the cloud may be a server, a personal computer (personal computer, PC), a public cloud, a private cloud, or the like. In some embodiments, the processing performed by the main processor 113 on the image and/or video captured by the DVR camera device 114 may be encoding, compression, noise reduction, sharpening, etc., or any combination thereof. The main processor 113 may include, for example, a microcontroller, a microprocessor, a reduced instruction set computer (RISC), an application specific integrated circuit (ASIC), an application specific instruction set processor (ASIP), a central processing unit (CPU), a graphics processing unit ( GPU), physical processing unit (PPU), single-chip microcomputer, digital signal processor (DSP), field programmable gate array (FPGA), advanced reduced instruction set system (ARM), programmable logic device (PLD), capable of executing at least one function of any circuit or processor, etc., or any combination thereof.

In some embodiments, please continue to refer to FIG. 4 , the vehicle terminal 100 may further include a diversity antenna 105 . The diversity antenna 105 is connected to the cellular communication module 101 and is used for diversity sending and receiving of cellular wireless signals. It can be understood that the diversity antenna 105 can receive cellular wireless signals together with the main antenna 103, and the cellular communication module 101 can select and combine the cellular wireless signals that the diversity antenna 105 can receive with the main antenna 103, so as to alleviate the influence of cellular wireless signal fading , thereby improving the signal-to-noise ratio of the received cellular wireless signal. In some embodiments, the diversity antenna 105 may include one or more antennas, such as 2 antennas or 4 antennas.

In some embodiments, the vehicle terminal 100 may further include a satellite navigation antenna 104 . The satellite navigation antenna 104 can be used to receive satellite navigation signals, and send the received satellite navigation signals to the cellular communication module 101 to cooperate with the cellular communication module 101 to realize satellite positioning and navigation. In some embodiments, satellite navigation signals may include, for example, GPS signals, Beidou signals, GLONASS signals, Galileo signals, etc., or any combination thereof.

The vehicle terminal 100 may also include a wireless local area network antenna 106 and a wireless local area network module 107 . The WLAN module 107 is connected to the WLAN antenna 106 and the cellular communication module 101 respectively. The WLAN antenna 106 can be used to send and receive WLAN signals. The wireless local area network module 106 and the wireless local area network module 107 cooperate with each other to realize wireless local area network communication. The wireless local area network may, for example, include a wireless network conforming to IEEE802.11 series standards, a wireless network conforming to Bluetooth standards, a wireless network conforming to Zigbee standards, or any combination thereof. In some embodiments, the WLAN module 107 can be connected to the cellular communication module 101 through a Universal Asynchronous Receiver/Transmitter (UART). In some embodiments, the cellular communication module 101 and the wireless local area network module 107 can cooperate with each other to convert the cellular network into a wireless local area network, so that user terminals connected to the wireless local area network can connect to the Internet via the cellular network.

Please continue to refer to FIG. 4 , in some embodiments, the vehicle terminal 100 may further include a multi-input and one-out switch 132 . The multi-in and one-out switching switch 132 is respectively connected to a plurality of camera devices 131 and the main processor 103 . The multi-input and one-out switching switch 132 can be used to select one of the multiple camera devices 131 in a time-sharing manner, so as to output the image and/or video captured by the selected camera device 131 to the main processor 103 . Taking the plurality of camera devices 131 including four camera devices 131-1, 131-2, 131-3, and 131-4 as an example, in the first time period, the multi-input and one-out switch 132 The camera 131-1 can be selected, and one or more frames of images in front of the vehicle captured by the camera 131-1 can be output to the main processor 103; 2. Output one or more frames of images behind the vehicle acquired by the camera 131-2 to the main processor 103; in the third time period, the multi-input-one-out switch 132 can select the camera 131-3, and the camera 131 -3 The captured one or more frames of images on the left side of the vehicle are output to the main processor 103; in the fourth time period, the multi-input-one-out switch 132 can select the camera 131-4, and the right side of the vehicle captured by the camera 131-4 One or more frames of images are output to the main processor 103; in the fifth time period, the multi-input-one-out switch 132 can select the camera device 131-1 again; and so on. The main processor 103 may perform splicing processing on the multiple images of the multiple camera devices 131 obtained in time-sharing. It can be understood that when the plurality of camera devices 131 includes four camera devices, the multi-input-one-out switching switch 132 can be a four-input-one-out switching switch accordingly.

In some embodiments, the vehicle terminal 100 may further include an eSIM card 108 . The eSIM card 108 can be connected with the cellular communication module 101 for storing user identification information. It can be understood that the user identification information stored in the eSIM card 108 can be used by the cellular network operator to identify the user, so as to determine whether the vehicle-mounted terminal 100 has the right to access the cellular network and whether it has the right to communicate with the cellular network. In some embodiments, the eSIM card 108 may be a chip capable of storing user identification information.

In some embodiments, the vehicle terminal 100 may further include a second storage module 109 . The second storage module 109 is connected with the cellular communication module 101 for storing data. In some embodiments, the second storage module 109 may include, for example, an eMMC memory, a flash memory chip, an SSD memory, etc., or any combination thereof, disposed in the vehicle-mounted terminal 100 . The second storage module 109 may also be a TF card, an MMC card, an SD card, etc., or any combination thereof, disposed in the card slot of the vehicle-mounted terminal 100 . In some embodiments, the second storage module 109 may be connected to the cellular communication module 101 through an SDIO (Secure Digital Input/Output) interface.

In some embodiments, the vehicle terminal 100 may further include an audio codec module 110 . The audio codec module 110 is connected with the cellular communication module 101 and used for codec of audio data. When the cellular communication module 101 performs voice communication, the audio codec module 110 can convert the audio data received by the cellular communication module 101 into an audio signal, and output it to the speaker on the vehicle via the MIC OUT port; The audio signal received by the IN port (for example, it can be collected by a microphone) is converted into audio data, and the audio data is sent to the cellular communication module 101 . The voice communication may include a voice call based on a cellular network, voice information based on Internet instant messaging, and the like. When the vehicle-mounted terminal 100 is playing multimedia, the audio codec module 110 can also convert the audio data in the multimedia file and/or multimedia stream into an audio signal, and output the audio signal to the speaker on the vehicle. In some embodiments, the audio codec module 110 can be connected to the cellular communication module 101 through an I2S (Integrated Interchip Sound) interface.

In some embodiments, the cellular communication module 101 can also store the audio data converted from the audio signal received by the MIC IN port into the first storage module 116, so as to save video and audio at the same time during driving recording.

In some embodiments, the vehicle terminal 100 may further include a power amplifier module 111 . The power amplifier module 111 is connected with the cellular communication module 101, and is used for amplifying the audio signal output by the cellular communication module 101, and outputting the amplified audio signal to the speaker through the SPK OUT port. The speaker may be a speaker included in the vehicle-mounted terminal 100, or may be a speaker included in the vehicle. In some embodiments, when an error occurs in the vehicle-mounted terminal 100 , the cellular communication module 101 may send out an audio alarm signal, and after being amplified by the power amplifier module 111 , the speaker sends out an audio alarm signal. In some embodiments, when the vehicle-mounted terminal 100 is playing multimedia, the cellular communication module 101 can convert the audio data in the multimedia file and/or multimedia stream into an audio signal, and the audio signal is amplified by the power amplifier module 111 and output to the vehicle of speakers.

In some embodiments, the vehicle terminal 100 may further include a USB port 112 . The USB port 112 is connected with the cellular communication module 101 for realizing data interaction between the cellular communication module 101 and external devices. In some embodiments, the cellular communication module 101 can be connected to the vehicle through the USB port 112 to realize data interaction.

In some embodiments, the vehicle terminal 100 may further include a memory 115 . The memory 115 is connected to the main processor 113 and is used for providing temporary storage space for data and/or instructions to be processed by the main processor 113 . For example, the memory 115 can temporarily store program instructions required by the main processor 113 to process image data and/or video data, and the program instructions can be encoding, compression, noise reduction, sharpening, etc., or any combination thereof. For another example, the memory 114 may temporarily store image data and/or video data acquired by multiple camera devices 131 . The memory 115 may include, for example, dynamic RAM (DRAM), double data rate synchronous dynamic RAM (DDR SDRAM), static RAM (SRAM), thyristor RAM (T-RAM), zero capacitance RAM (Z-RAM), etc., or random combination.

For example, in some other embodiments, the memory 115 may also temporarily store image data and/or video data acquired by the DVR camera device 114 .

In some embodiments, the vehicle terminal 100 may further include a power management module 117 . The power management module 117 is connected with the main processor 113 , and is configured to perform power management on at least a part of components in the vehicle-mounted terminal 100 according to an instruction of the main processor 113 . Said components may be cellular communication module 101 , main processor 113 , wireless local area network module 107 , second storage module 109 , camera 114 , first storage module 116 , microcontroller 102 and so on.

In some embodiments, the vehicle terminal 100 may further include a low-voltage differential signaling (Low-Voltage Differential Signaling, LVDS) port 118 . The LVDS port 118 is connected to the main processor 113 for realizing data exchange between the main processor 113 and external devices. In some embodiments, the main processor 113 can be connected with the vehicle through the LVDS port 118 to realize data interaction. Another example is to send the images and/or videos captured by multiple camera devices 131 spliced by the main processor 103 to the vehicle unit for display by the vehicle unit, so as to assist the driver to observe the situation around the vehicle.

For example, in some other embodiments, the LVDS port 118 of the vehicle-mounted terminal 100 can also send the image data and/or video data acquired by the DVR camera device 114 to the vehicle-mounted terminal.

In some embodiments, the vehicle terminal 100 may further include a microcontroller (MCU) 102 . The microcontroller 102 can be respectively connected with the cellular communication module 101 and the main processor 113 to control the actions of the cellular communication module 101 and the main processor 113 . In some embodiments, the microcontroller 102 may include, for example, an ARM processor, a DSP processor, a Field Programmable Gate Array (FPGA), a Programmable Logic Device (PLD), a microcontroller, an ASIC, etc., or any combination thereof. It can be understood that the action of the cellular communication module 101 may be to implement one or more of its functions. For example, the action of the cellular communication module 101 may be that the cellular communication module 101 cooperates with the main antenna 103 to realize cellular network communication, or that the cellular communication module 102 cooperates with the satellite navigation antenna 104 to realize satellite positioning and navigation. It can also be understood that the action of the main processor 113 may be to implement one or more of its functions. For example, the action of the main processor 113 may be reading and writing to the memory 115 and the first storage module 116 .

For another example, in some other embodiments, the action of the main processor 113 may also be to process the image and/or video captured by the DVR camera device 114 such as encoding, compression, noise reduction, sharpening, and the like.

In some embodiments, the microcontroller 102 can also be connected to the power amplifier module 111 . The microcontroller 102 also controls the power amplifier module 111 , for example, adjusts the gain of the power amplifier module 111 . Preferably, the power amplifier module 111 is connected to the microcontroller 102 through an I2C (Inter-Integrated Circuit) bus.

In some embodiments, the vehicle terminal 100 further includes an acceleration sensor 122 . The acceleration sensor 122 is connected with the microcontroller 102 for sensing the acceleration of the vehicle. The microcontroller 102 can determine whether the vehicle has a collision accident according to the acceleration change of the vehicle sensed by the acceleration sensor 122 . In some embodiments, the acceleration sensor 122 may be piezoelectric, piezoresistive, capacitive, servo, etc., for example. In some embodiments, the acceleration sensor 122 may be, for example, uniaxial, biaxial, or triaxial. Preferably, the acceleration sensor 122 may be a MEMS sensor.

In some embodiments, the vehicle terminal 100 also includes a data port 119 . The data port 119 is connected to the microcontroller 102 and is used to realize data interaction between the microcontroller 102 and external devices. Specifically, the ignition signal of the vehicle can be transmitted to the microcontroller 102 through the data port 119 , thereby triggering the microcontroller 102 to start working.

In some embodiments, a display screen 121 may also be included, and the display screen 121 is connected to the main processor 103 for displaying images and/or videos captured by the rear view camera device 120 . In some embodiments, the display screen 121 may be disposed in the interior rearview mirror. The interior rearview mirror can be an anti-vertigo interior rearview mirror, or an ordinary interior rearview mirror.

In some embodiments, the vehicle terminal 100 further includes a power module 123 . The power supply module 123 is connected to the battery of the vehicle, and provides power for each component in the vehicle-mounted terminal 100 after converting the battery voltage.

As mentioned above, the vehicle-mounted terminal 100 of the present invention has the functions of a T-Box and a streaming media rearview mirror module, forming a real-time display of the situation behind the vehicle, expanding the rearview field of vision, reducing rearview blind spots and improving driving safety and vehicle condition information. An on-board intelligent controller with functions such as collection, driving behavior and habit collection, and data upload to the cloud. The vehicle-mounted terminal 100 can be realized by a cellular communication module 101 , a main processor 113 , a microcontroller 102 , a rear-view camera device 120 and a power supply module 123 . Compared with the technical solution realized by the combination of these three modules of T-Box and streaming media rearview mirror module, the vehicle-mounted terminal 100 saves the cellular communication module, main processor, microcontroller, power supply module and Peripheral circuits have the advantages of making full use of resources, reducing occupied space, improving system interaction efficiency and reliability, and reducing overall costs.

Those of skill in the art would further appreciate that the various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

The various illustrative logic modules, and circuits described in connection with the embodiments disclosed herein may be implemented using a general-purpose processor, digital signal processor (DSP), application-specific integrated circuit (ASIC), field-programmable gate array (FPGA), or other programmable Logic devices, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein are implemented or performed. A general-purpose processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in cooperation with a DSP core, or any other such configuration.

Although the present invention has been described with reference to the current specific embodiments, those of ordinary skill in the art should recognize that the above embodiments are only used to illustrate the present invention, and other embodiments can be made without departing from the spirit of the present invention. Therefore, as long as the changes and modifications to the above embodiments are within the spirit of the present invention, they will all fall within the scope of the claims of the present application.

Claims (10)

1. a vehicle-mounted terminal characterized by comprising:

A main antenna for transceiving cellular wireless signals;

the cellular communication module is connected with the main antenna and is used for cellular network communication;

The first storage module is used for storing data;

The rear-view camera device is used for acquiring images and/or videos behind a vehicle carrying the vehicle-mounted terminal; and

the plurality of camera devices are used for acquiring images and/or videos around the vehicle;

the satellite navigation antenna is connected with the cellular communication module and is used for receiving satellite positioning signals; and

The main processor is respectively connected with the first storage module, the rear-view camera device and the plurality of camera devices, and is used for processing the images and/or videos acquired by the rear-view camera device and outputting the processed images and/or videos acquired by the rear-view camera device; the system is also used for processing the images and/or videos acquired by the plurality of camera devices and outputting the processed images and/or videos;

And the display screen is connected with the main processor and is used for displaying the images and/or videos acquired by the rear-view camera device.

2. the in-vehicle terminal according to claim 1, wherein the in-vehicle terminal further comprises:

And the diversity antenna is connected with the cellular communication module and is used for diversity receiving and transmitting cellular wireless signals.

3. The in-vehicle terminal according to claim 1, wherein the in-vehicle terminal further comprises:

the wireless local area network antenna is used for receiving and transmitting wireless local area network signals;

and the wireless local area network module is respectively connected with the wireless local area network antenna and the cellular communication module and is used for realizing wireless local area network communication.

4. the in-vehicle terminal according to claim 1, wherein the in-vehicle terminal further comprises:

an eSIM card connected with the cellular communication module and used for storing subscriber identification information; and/or

The memory is connected with the main processor and is used for providing a temporary storage space for data and/or instructions to be processed by the main processor;

And the second storage module is connected with the cellular communication module and is used for storing data.

5. The in-vehicle terminal according to claim 1, wherein the in-vehicle terminal further comprises:

The audio coding and decoding module is connected with the cellular communication module and is used for coding and decoding audio data; and the power amplifier module is connected with the cellular communication module and used for amplifying the audio signal output by the cellular communication module and outputting the amplified audio signal.

6. the in-vehicle terminal according to claim 5, wherein the in-vehicle terminal further comprises:

the microcontroller is respectively connected with the cellular communication module, the main processor and the power amplifier module and is used for controlling the actions of the cellular communication module and the main processor and controlling the power amplifier module;

And the data port is connected with the microcontroller and is used for realizing data interaction between the microcontroller and external equipment.

7. The in-vehicle terminal according to claim 6, wherein the in-vehicle terminal further comprises:

And the acceleration sensor is connected with the microcontroller and used for sensing the acceleration of the vehicle.

8. the in-vehicle terminal according to claim 1, wherein the in-vehicle terminal further comprises:

The USB port is connected with the cellular communication module and is used for realizing data interaction between the cellular communication module and external equipment; and/or

And the LVDS port is connected with the main processor and is used for realizing data interaction between the main processor and external equipment.

9. The in-vehicle terminal according to claim 1, wherein the in-vehicle terminal further comprises:

The power supply module is used for providing power supply for each part in the vehicle-mounted terminal; and/or

and the power management module is connected with the main processor and used for performing power management on at least one part of components in the vehicle-mounted terminal according to the instruction of the main processor.

10. The in-vehicle terminal according to claim 1, wherein the in-vehicle terminal further comprises:

And a multi-in and one-out switch, which is connected to the plurality of image capturing devices and the main processor, respectively, and is configured to select one of the plurality of image capturing devices in a time-division manner, so as to output an image and/or a video acquired by the selected image capturing device to the main processor.