CN110557150A

CN110557150A - Vehicle-mounted terminal

Info

Publication number: CN110557150A
Application number: CN201810540933.8A
Authority: CN
Inventors: 张仁建
Original assignee: Shanghai Qinggan Intelligent Technology Co Ltd
Current assignee: Shanghai Qinggan Intelligent Technology Co Ltd
Priority date: 2018-05-30
Filing date: 2018-05-30
Publication date: 2019-12-10

Abstract

the invention provides a vehicle-mounted terminal, which comprises: a main antenna for transceiving cellular wireless signals; a cellular communication module 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 the vehicle; the system comprises a plurality of camera devices, a plurality of image acquisition devices and a plurality of image processing devices, wherein the camera devices are used for acquiring images and/or videos around a vehicle; and a main processor and display screen. The vehicle-mounted terminal integrates the T-Box, the 360-degree look-around and the streaming media rearview mirror module, and compared with the three functions, the vehicle-mounted terminal independently realizes the respective functions, saves devices with overlapped functions, reduces the space occupied by the devices, effectively utilizes resources, improves the interaction efficiency and reliability of the system, and reduces the overall development cost.

Description

vehicle-mounted terminal

Technical Field

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

background

The Internet of vehicles is a new technology for realizing intercommunication and interconnection among vehicles, vehicles and roads, vehicles and people, vehicles and service platforms by means of information and communication technology. To implement these interworking in car networking technology, the currently adopted technology is usually implemented by setting a T-box (telematics box) in the car. Fig. 1 is a basic block diagram of a conventional T-Box. Referring to fig. 1, the T-Box mainly includes a cellular communication module and a processor. The cellular communication module is connected with the main antenna, the diversity antenna, the satellite navigation antenna and the eSIM card so as 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 sharing of the wireless local area network. The T-Box also comprises a storage module, an audio coding and decoding module and a power amplifier module, and the cellular communication module is also connected with the storage module, the audio coding and decoding module, the power amplifier module and the like so as to realize the playing of multimedia. The processor is connected with the cellular communication module and is mainly used for controlling the cellular communication module to realize various actions, such as cellular communication, satellite positioning, multimedia playing and the like. In addition, the processor also receives an ignition signal, and the ignition signal is used as a trigger signal for starting the processor to work. Of course, the T-Box also includes a power module connected to the battery to provide power to the various components in the T-Box.

the streaming media rearview mirror module collects the rear images of the automobile, can present the rear condition of the automobile in real time, enlarge the rear view field and reduce the rear view blind area. Fig. 2 is a basic block diagram of a conventional streaming media rearview mirror module. Referring to fig. 2, the streaming media rearview mirror module includes a rearview camera, a Main Processor Unit (MPU), a Microcontroller (MCU), a memory, a storage module, a power management module, a power module, an interior rearview mirror (including a display screen), and the like. The rear-view camera is arranged at the rear part of the vehicle and used for collecting images behind the vehicle. The main processor processes the images collected by the rearview camera and displays the images to the driver through the inner rearview mirror. The main processor is further connected with the memory, the storage module and the power management module respectively to assist in achieving the function of the main processor in processing the rear images. The microcontroller is mainly used for controlling operations such as starting, closing, starting image processing, stopping image processing and the like of components such as a main processor and the like according to an ignition signal and the like. The power module is used for providing power for each component in the streaming media rearview mirror module.

when a vehicle starts, turns, parks, meets the vehicle, avoids obstacles and the like, due to the existence of a driving blind area, a driver cannot observe the condition of an area close to the vehicle body, and accidents such as scratching, collision, rolling and the like are easy to happen. In order to avoid the accident, some existing vehicles are equipped with a 360-degree looking around module, which can show the surrounding situation of the vehicle and assist the driver to know the surrounding situation of the vehicle. Fig. 3 is a basic block diagram of a conventional 360-round looking module. Referring to fig. 3, the 360-degree look-around module includes four cameras, a four-in one-out switch, a Main Processor Unit (MPU), a Microcontroller (MCU), a memory, a storage module, a power management module, a power module, and the like. The four cameras are respectively arranged at the front part, the rear part, the left side and the right side of the vehicle so as to respectively acquire road condition images of the front part, the rear part, the left side and the right side of the vehicle. Road condition images acquired by the four cameras are sent to the main processor in a time-sharing manner through the four-in one-out selector switch. And the main processor processes the road condition images, splices the road condition images into images capable of showing the surrounding conditions of the vehicle, and shows the images to a driver through the vehicle machine. The main processor is also connected with the memory, the storage module and the power management module respectively to assist in realizing the processing function of the main processor on the road condition images. The microcontroller is mainly used for controlling operations such as starting, closing, starting image processing, stopping image processing and the like of components such as a main processor and the like according to an ignition signal and the like. The power module is used for providing power for all parts in the 360-degree look-around module.

In order to realize 360-degree look around, internet of vehicles interconnection and a streaming media rear view mirror, the existing method is to install 360-degree look around, T-Box and a streaming media rear view mirror module on a vehicle at the same time, but the method has the disadvantages of high cost and at least occupying three interfaces. Therefore, a low-cost vehicle-mounted terminal is needed to realize the functions of the 360-degree around view, T-Box and streaming media rearview mirror module.

Disclosure of Invention

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

in order to solve the above technical problem, the present invention provides a vehicle-mounted terminal, including:

A main antenna for transceiving cellular wireless signals;

a cellular communication module connected with the main antenna 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 the vehicle carrying the vehicle-mounted terminal; and

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

A satellite navigation antenna connected with the cellular communication module 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.

in at least one embodiment of the present invention, the in-vehicle terminal further includes:

and the diversity antenna is connected with the cellular communication module and is used for diversity transceiving cellular wireless signals.

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.

an eSIM card connected with the cellular communication module 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.

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.

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.

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

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.

The power supply module is used for providing power supply for each component 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.

and the multi-in and one-out switching switch is respectively connected with the plurality of camera devices and the main processor and is used for selecting one of the plurality of camera devices in a time-sharing manner so as to output the image and/or video acquired by the selected camera device to the main processor. Compared with the prior art, the invention has the following advantages:

compared with the technical scheme that the functions of the 360-degree look-around, T-Box and streaming media rearview mirror module are realized by the combination of the three modules of the 360-degree look-around, the T-Box and the streaming media rearview mirror module, the vehicle-mounted terminal provided by the invention omits a cellular communication module, a main processor, a microcontroller, a power supply module and a peripheral circuit which have an overlapping function, and has the advantages of fully utilizing resources, reducing occupied space, improving the interaction efficiency and reliability of the system, reducing the overall cost and the like.

Drawings

Fig. 1 is a basic block diagram of a conventional T-Box.

fig. 2 is a basic block diagram of a conventional streaming media rearview mirror module.

Fig. 3 is a basic block diagram of a conventional 360-round looking module.

fig. 4 is a basic block diagram of a vehicle-mounted terminal of some embodiments of the present invention.

description of the reference numerals

100-vehicle mounted terminal;

101-a cellular communication module;

102-a microcontroller;

103-a main antenna;

104-a satellite navigation antenna;

105-diversity antennas;

106-wireless local area network antenna;

107-wireless local area network module;

108-eSIM card;

109-a second storage module;

110-an audio codec module;

111-power amplifier module;

112-USB port;

113-a main processor;

114-a DVR camera device;

115-memory;

116-a first storage module;

117-power management module;

118-LVDS ports;

119-a data port;

120-rear view camera;

121-a display screen;

122-an acceleration sensor;

123-a power supply module;

131-a plurality of camera devices;

131-1 camera (front);

131-2 camera device (back);

131-3 camera (left);

131-4 camera (right);

132-multiple in-one out switch.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments disclosed below.

certain terms are used throughout the description and claims to refer to particular system components. As one skilled in the art will appreciate, different companies may refer to a component by different names. This document does not intend to distinguish between components that differ in name but not function. In the description and claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to …".

as used in this application and the appended claims, the terms "a," "an," "the," and/or "the" are not intended to be inclusive in the singular, but rather are intended to be inclusive in the plural unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that steps and elements are included which are explicitly identified, that the steps and elements do not form an exclusive list, and that a method or apparatus may include other steps or elements.

furthermore, each of the embodiments described below has one or more technical features, and thus, the use of the technical features of any one embodiment does not necessarily mean that all of the technical features of any one embodiment are implemented at the same time or that only some or all of the technical features of different embodiments are implemented separately. In other words, those skilled in the art can selectively implement some or all of the features of any embodiment or combinations of some or all of the features of multiple embodiments according to the disclosure of the present invention and according to design specifications or implementation requirements, thereby increasing the flexibility in implementing the 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, connected or coupled to, or contacting the other element or intervening elements may be present. 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. Similarly, when a first component is said to be "in electrical contact with" or "electrically coupled to" a second component, there is an electrical path between the first component and the second component that allows current to flow. The electrical path may include capacitors, coupled inductors, and/or other components that allow current to flow even without direct contact between the conductive components.

as introduced in the background section, the existing 360-around, T-Box, and streaming media rearview mirror modules are separate modular products, each performing its respective function. The three module products all have the same components such as a processor (CPU), a power supply circuit, a connector, and the like. When the three module products are used for realizing the functions of the T-Box and the streaming media rearview mirror module together, the same parts in the three module products are repeated, and the interaction between the product modules is realized by connecting the wire harnesses, so that the problems of hardware cost waste, more occupied space, low interaction efficiency, low reliability and the like can be caused. In order to overcome the problems, the invention provides the vehicle-mounted terminal which has the functions of a T-Box and a streaming media rearview mirror module, and the vehicle-mounted terminal can fully utilize resources, reduce occupied space, improve the interaction efficiency and reliability of a system and reduce the overall cost.

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

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

The main antenna 103 may be used to transceive cellular wireless signals to enable cellular network communications in cooperation with the cellular communication module 101. In some embodiments, the cellular network may be a 2G (e.g., GSM, IS-95, IS-136, IDEN, PDC, etc.), 3G (e.g., W-CDMA, CDMA-2000, TD-SCDMA, WiMAX, etc.), 4G (e.g., LTE FDD, LTE TDD), etc. format cellular network, and accordingly, the cellular wireless signals may also be wireless signals conforming to one or more of 2G, 3G, and 4G, etc. It is to be appreciated that cellular network communications may include, for example, voice communications, data communications, Short Message Service (SMS) communications, or any combination thereof.

the plurality of image pickup devices 131 can be used to acquire images and/or videos of the periphery of a vehicle (hereinafter, simply referred to as "vehicle") on which the in-vehicle terminal of the present embodiment is mounted. Preferably, the plurality of cameras 131 are used mainly for acquiring images and/or videos of the road surface. In some embodiments, the plurality of cameras 131 may be, for example, visible light cameras, infrared cameras, lidar, and the like. In some embodiments, the plurality of cameras 131 may each be a wide-angle camera. In some embodiments, the plurality of cameras 131 may be partially wide-angle cameras and partially mid-focus cameras. The wide-angle camera can have a viewing angle range of 140-180 degrees, and the mid-focus camera can have a viewing angle range of 90-140 degrees.

In some embodiments, the plurality of cameras 131 may include, for example, camera 131-1, camera 131-2, camera 131-3, camera 131-4. The camera 131-1 may be used to acquire images and/or video in front of the vehicle. The camera 131-2 may be used to acquire images and/or video behind the vehicle. The camera 131-3 may be used to capture images and/or video of the left side of the vehicle. The camera 131-4 may be used to acquire images and/or video of the right side of the vehicle. In some embodiments, the camera 131-1 for capturing images and/or video of the front of the vehicle may be disposed on the front grille or the front bumper. In some embodiments, the camera 131-2 for capturing images and/or video behind the vehicle may be disposed on the trunk lid or the rear bumper. In some embodiments, the camera 131-3 for capturing images and/or video of the left side of the vehicle may be disposed on the left rear view mirror. In some embodiments, a camera 131-4 for capturing images and/or video of the right side of the vehicle may be provided on the right rear view mirror.

it is understood that the plurality of cameras 131 may include more than four cameras. The present invention does not limit the number of the cameras included in the plurality of cameras 131 as long as the plurality of cameras can acquire images and/or videos around the vehicle and the main processor 103 can perform a stitching process on the images and/or videos.

The first storage module 116 is connected to the main processor 113 for storing data. For example, the first storage module 116 may store image data and/or video data acquired 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., or any combination thereof, provided within the in-vehicle terminal 100. The first storage module 116 may also be a TF card, an MMC card, an SD card, etc., or any combination thereof, which is disposed in a card slot provided in the in-vehicle 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 120 may be used to acquire images and/or video behind the vehicle. In some embodiments, the rearview camera 120 may be, for example, a visible light camera, an infrared camera, a lidar, or the like. In some embodiments, the rear-view camera 120 may be a wide-angle camera (e.g., a viewing angle of 60 ° or more), a mid-focus camera (e.g., a viewing angle range of 24 ° to 60 °), or a tele camera (e.g., a viewing angle range of 24 ° or less). In some embodiments, the rear-view camera 120 may include one or more cameras, for example, three cameras spaced apart to provide binocular vision. It is understood that the rear-view camera 120 may be disposed above a rear license plate of the vehicle, below the rear license plate, on a rear bumper, etc.

The main processor 113 may be used to process images and/or video acquired by the rear-view camera 120. The main processor 113 may also output processed images and/or video, for example, to a display screen for streaming display behind the vehicle. In some embodiments, the processing of the images and/or video acquired by the rear-view camera 120 by the main processor 113 may be encoding, compression, noise reduction, sharpening, the like, or any combination thereof.

The main processor 103 may be configured to process images and/or videos acquired by the plurality of cameras 111 and output the processed images and/or videos. The particular manner in which the main processor 103 processes the acquired images and/or video may vary. For example, in some embodiments, the main processor 103 stitches the images and/or videos acquired by the plurality of cameras 131 to form a panoramic overhead image and/or video of the vehicle's surroundings. Preferably, in some of the above embodiments, in the stitched images and/or videos, a vehicle (for example, an overhead view of the vehicle) is located at the center of the panoramic overhead image and/or video, and the stitched images and/or videos obtained by stitching the images and/or videos obtained by the plurality of cameras 131 are located at the periphery of the vehicle. It will be appreciated that the processing of the images and/or video acquired by the plurality of cameras 131 by the main processor 103 may also be distortion correction, noise reduction, sharpening, etc. Of course, the processing of the images and/or videos acquired by the plurality of cameras 131 by the main processor 103 may include any combination of one or more of the above-described processing. And the processing of the images and/or videos acquired by the plurality of cameras 131 by the main processor 103 is not limited to the above-mentioned several processing methods. For example, in some embodiments, the main processor 103 may also highlight locations in the stitched images and/or video where the vehicle may be scratched or collided with.

optionally, in some embodiments, the in-vehicle terminal may also have a DVR camera 114 that may be used to capture images and/or video in front of the vehicle. In some embodiments, DVR camera 114 may be, for example, a visible light camera, an infrared camera, a lidar, or the like. In some embodiments, DVR camera 114 may be a wide-angle camera (e.g., a viewing angle of 60 ° or greater), a mid-focus camera (e.g., a viewing angle range of 24 ° -60 °), or a tele camera (e.g., a viewing angle range of 24 ° or less). Preferably, DVR camera 114 is an ultra-wide-angle camera, and its angle of view may be greater than or equal to 100 °, 120 °, 140 °, and so on. In some embodiments, DVR camera 114 may include one or more cameras, for example three cameras spaced apart to form binocular vision. It is understood that DVR camera 114 may be disposed on a rear-view mirror (e.g., left rear-view mirror, right rear-view mirror, center interior rear-view mirror, etc.), front grille, bumper, etc. of a vehicle. In some embodiments, DVR camera 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 114. The main processor 113 may further store the processed image and/or video to the first storage module 116 to implement driving recording. The main processor 113 may 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 a data base for training of the automatic driving. It is understood that the cloud may be a server, a Personal Computer (PC), a public cloud, a private cloud, or the like. In some embodiments, the processing of the images and/or video acquired by DVR camera 114 by main processor 113 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), a Physical Processing Unit (PPU), a single chip microcomputer, a Digital Signal Processor (DSP), a Field Programmable Gate Array (FPGA), an advanced reduced instruction set system (ARM), a Programmable Logic Device (PLD), any circuit or processor capable of performing at least one function, or the like, or any combination thereof.

in some embodiments, continuing to refer to fig. 4, the vehicle-mounted terminal 100 may also include a diversity antenna 105. The diversity antenna 105 is connected to the cellular communication module 101 for diversity transceiving cellular radio signals. It is understood that the diversity antenna 105 may receive the cellular wireless signal together with the main antenna 103, and the cellular wireless signals that the diversity antenna 105 may receive with the main antenna 103 may be selected and combined at the cellular communication module 101 to mitigate the effect of fading of the cellular wireless signal, thereby improving the signal-to-noise ratio of the received cellular wireless signal. In some embodiments, diversity antenna 105 may include one or more antennas, e.g., 2 antennas, 4 antennas.

in some embodiments, the in-vehicle terminal 100 may also include a star navigation antenna 104. Satellite navigation antenna 104 may be configured to receive satellite navigation signals and transmit the received satellite navigation signals to cellular communication module 101, so as to cooperate with cellular communication module 101 to implement satellite positioning and navigation. In some embodiments, the satellite navigation signals may include, for example, GPS signals, beidou signals, GLONASS signals, Galileo signals, or the like, or any combination thereof.

the in-vehicle terminal 100 may further include a wireless local area network antenna 106 and a wireless local area network module 107. The wireless lan module 107 is connected to the wireless lan antenna 106 and the cellular communication module 101, respectively. The wireless local area network antenna 106 may be used for transceiving wireless local area network signals. The wireless lan module 106 and the wireless lan module 107 cooperate with each other to implement wireless lan communication. The wireless local area network may, for example, comprise a wireless network conforming to the IEEE802.11 family of standards, a wireless network conforming to the bluetooth standard, a wireless network conforming to the Zigbee standard, or any combination thereof. In some embodiments, the wlan module 107 may 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 may cooperate to convert a cellular network into a wireless local area network such that a user terminal connected to the wireless local area network may connect to the internet via the cellular network.

with continued reference to FIG. 4, in some embodiments, the in-vehicle terminal 100 may further include a multi-in and one-out switch 132. The multiple-in/multiple-out changeover switch 132 is connected to each of the plurality of image pickup devices 131 and the main processor 103. The multiple-in and one-out changeover switch 132 may be used to select one of the plurality of image pickup devices 131 by time division to output an image and/or video acquired by the selected image pickup device 131 to the main processor 103. Taking the example that the plurality of cameras 131 includes four cameras 131-1, 131-2, 131-3, 131-4, the multi-in and one-out switch 132 can select the camera 131-1 and output one or more frames of images in front of the vehicle acquired by the camera 131-1 to the main processor 103 during a first period; in a second time period, the one-in-one-out switch 132 can select the camera 131-2 and output one or more frames of images behind the vehicle acquired by the camera 131-2 to the main processor 103; in a third time period, the multi-in and multi-out switch 132 can select the camera device 131-3 and output one or more frames of images of the left side of the vehicle acquired by the camera device 131-3 to the main processor 103; in a fourth time period, the in-out switch 132 can select the camera 131-4, and output one or more images of the right side of the vehicle acquired by the camera 131-4 to the main processor 103; in a fifth time period, the one-in-one-out switch 132 can select the camera device 131-1 again; and so on. The main processor 103 may perform a stitching process on a plurality of images of the plurality of image pickup devices 131 obtained by time division. It is understood that when the plurality of image pickup devices 131 includes four image pickup devices, the multiple-in-one-out switch 132 may be a four-in-one-out switch accordingly.

In some embodiments, the in-vehicle terminal 100 may further include an eSIM card 108. The eSIM card 108 can be connected to the cellular communication module 101 for storing subscriber identification information. It is understood that the subscriber identification information stored by the eSIM card 108 can be used by a cellular network operator to authenticate a subscriber to determine whether the in-vehicle terminal 100 has access to the cellular network and is authorized for cellular network communications. In some embodiments, the eSIM card 108 can be a chip capable of storing subscriber identification information.

In some embodiments, the in-vehicle terminal 100 may further include a second storage module 109. The second storage module 109 is connected to 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, provided within the in-vehicle terminal 100. The second storage module 109 may also be a TF card, an MMC card, an SD card, or the like, or any combination thereof, disposed in a card slot provided in the in-vehicle 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 in-vehicle terminal 100 may further include an audio codec module 110. The audio codec module 110 is connected to the cellular communication module 101 for encoding and decoding audio data. When the cellular communication module 101 performs voice communication, the audio codec module 110 may convert audio data received by the cellular communication module 101 into an audio signal, and output the audio signal to a speaker on the vehicle via the MIC OUT port; the audio codec module 110 may also convert audio signals received by the MIC IN port (e.g., as may be picked up by a microphone) into audio data and send the audio data to the cellular communication module 101. The voice communication may include voice calls over a cellular network, voice messages over instant communications over the internet, and the like. When the vehicle-mounted terminal 100 plays multimedia, the audio codec module 110 may also convert audio data in the multimedia file and/or multimedia stream into an audio signal and output the audio signal to a speaker on the vehicle. In some embodiments, the audio codec module 110 may be connected to the cellular communication module 101 through an I2S (Integrated inter Sound) interface.

IN some embodiments, the cellular communication module 101 may further store the converted audio data of the audio signal received by the MIC IN port to the first storage module 116, so as to simultaneously store the video and the audio during the driving recording.

in some embodiments, the vehicle-mounted terminal 100 may further include a power amplifier module 111. The power amplifier module 111 is connected to the cellular communication module 101, and is configured to amplify the audio signal output by the cellular communication module 101, and output the amplified audio signal to the speaker through the SPK OUT port. The speaker may be a speaker provided in the in-vehicle terminal 100 or a speaker provided in the vehicle. In some embodiments, when an error occurs in the in-vehicle terminal 100, the cellular communication module 101 may send out an audio signal for alarm, and the audio signal is amplified by the power amplifier module 111 and then sent out by the speaker. In some embodiments, when the vehicle-mounted terminal 100 performs multimedia playing, the cellular communication module 101 may convert audio data in a multimedia file and/or a multimedia stream into an audio signal, and the audio signal is amplified by the power amplifier module 111 and then output to a speaker on the vehicle.

In some embodiments, the in-vehicle terminal 100 may further include a USB port 112. The USB port 112 is connected to the cellular communication module 101 for data interaction between the cellular communication module 101 and external devices. In some embodiments, cellular communication module 101 may connect with a car machine through USB port 112 to enable data interaction.

In some embodiments, the in-vehicle terminal 100 may further include a memory 115. The memory 115 is coupled to the main processor 113 and is used to provide temporary storage space for data and/or instructions to be processed by the main processor 113. For example, the memory 115 may temporarily store program instructions required by the main processor 113 to process image data and/or video data, which may be encoded, compressed, denoised, sharpened, etc., or any combination thereof. For another example, the memory 114 may temporarily store image data and/or video data acquired by the plurality of cameras 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), and the like, or any combination thereof.

For example, in some other embodiments, memory 115 may also be configured to temporarily store image data and/or video data obtained by DVR camera 114.

In some embodiments, the in-vehicle terminal 100 may further include a power management module 117. The power management module 117 is connected to 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. The components may be the cellular communication module 101, the main processor 113, the wireless local area network module 107, the second memory module 109, the camera 114, the first memory module 116, the microcontroller 102, etc.

In some embodiments, the in-vehicle terminal 100 may further include a Low-Voltage Differential Signaling (LVDS) port 118. The LVDS port 118 is connected to the main processor 113 for enabling data interaction of the main processor 113 with external devices. In some embodiments, the host processor 113 may interface with a car machine through the LVDS port 118 to enable data interaction. For example, the images and/or videos obtained by the plurality of cameras 131 spliced by the main processor 103 are sent to the vehicle-mounted device and displayed by the vehicle-mounted device to assist the driver in observing the surrounding of the vehicle.

For example, in some other embodiments, the LVDS port 118 of the in-vehicle terminal 100 may also be capable of transmitting image data and/or video data acquired by the DVR camera 114 to a vehicle machine.

in some embodiments, the in-vehicle terminal 100 may further include a Microcontroller (MCU) 102. The microcontroller 102 may be connected to the cellular communication module 101 and the main processor 113, respectively, for controlling the actions of the cellular communication module 101 and the main processor 113. In some embodiments, the microcontroller 102 may comprise, for example, an ARM processor, a DSP processor, a Field Programmable Gate Array (FPGA), a Programmable Logic Device (PLD), a single-chip microcomputer, an ASIC, or the like, or any combination thereof. It will be appreciated that the actions of the cellular communication module 101 may be to implement one or more of its own functions. For example, the cellular communication module 101 may perform cellular network communication by the cellular communication module 101 cooperating with the main antenna 103, or perform satellite positioning and navigation by the cellular communication module 102 cooperating with the satellite navigation antenna 104. It will also be appreciated that the actions 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, the first memory module 116.

For another example, in some other embodiments, the action of the main processor 113 may be to process the images and/or videos acquired by the DVR camera 114, such as encoding, compressing, denoising, sharpening, and the like.

In some embodiments, the microcontroller 102 may also be connected to a 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 via an I2C (Inter-Integrated Circuit) bus.

In some embodiments, the in-vehicle terminal 100 further includes an acceleration sensor 122. An acceleration sensor 122 is connected to 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, for example, piezoelectric, piezoresistive, capacitive, servo, or the like. 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 in-vehicle terminal 100 further includes a data port 119. The data port 119 is connected to the microcontroller 102 for data interaction between the microcontroller 102 and external devices. Specifically, the ignition signal of the vehicle may be transmitted to the microcontroller 102 through the data port 119, thereby triggering the microcontroller 102 to operate.

In some embodiments, a display screen 121 may also be included, the display screen 121 being coupled to the main processor 103 for displaying images and/or video captured by the rear-view camera 120. In some embodiments, the display screen 121 may be disposed in an interior rear view mirror. The inner rear-view mirror can be an anti-dizziness inner rear-view mirror and can also be a common inner rear-view mirror.

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

As described above, the vehicle-mounted terminal 100 of the present invention has the functions of the T-Box and the streaming media rearview mirror module, and forms a vehicle-mounted intelligent controller having the functions of presenting the vehicle rear situation in real time, expanding the rear view field, reducing the blind area of the rear view, improving the driving safety, collecting vehicle situation information, collecting driving behaviors and habits, uploading data to the cloud, and the like. The in-vehicle terminal 100 may be implemented by a cellular communication module 101, a main processor 113, a microcontroller 102, a rear-view camera 120, and a power module 123. Compared with the technical scheme realized by the combination of three module products, namely the T-Box and the streaming media rearview mirror module, the vehicle-mounted terminal 100 omits a cellular communication module, a main processor, a microcontroller, a power module and a peripheral circuit with an overlapping function, and has the advantages of fully utilizing resources, reducing occupied space, improving system interaction efficiency and reliability, reducing overall cost and the like.

those of skill 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 logical modules, and circuits described in connection with the embodiments disclosed herein may be implemented or performed with a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. 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, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.

although the present invention has been described with reference to the present specific embodiments, it will be appreciated by those skilled in the art that the above embodiments are merely illustrative of the present invention, and various equivalent changes and substitutions may be made without departing from the spirit of the invention, and therefore, changes and modifications to the above embodiments within the spirit of the invention are intended to fall within the scope of the claims of the present application.

Claims

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

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:

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

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

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

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

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

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

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.