CN115767038A - Data transmission method, image acquisition device on vehicle and system-on-chip - Google Patents
Data transmission method, image acquisition device on vehicle and system-on-chip Download PDFInfo
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- CN115767038A CN115767038A CN202211534306.6A CN202211534306A CN115767038A CN 115767038 A CN115767038 A CN 115767038A CN 202211534306 A CN202211534306 A CN 202211534306A CN 115767038 A CN115767038 A CN 115767038A
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Abstract
The application provides a data transmission method, an image acquisition device on a vehicle and a system-on-chip; the method comprises the following steps: acquiring a first image and a second image corresponding to the environment of the vehicle in the driving process at adjacent moments, wherein the acquisition moment of the first image is earlier than that of the second image; determining data to be transmitted according to first data corresponding to the first image and second data corresponding to the second image, wherein the first data does not comprise the data to be transmitted; and transmitting the data to be transmitted to a system-on-chip in the vehicle so as to enable the system-on-chip to generate the second image based on the data to be transmitted, and displaying the second image through a display device in the vehicle.
Description
Technical Field
The present disclosure relates to driving safety technologies, and in particular, to a data transmission method, an image capture device on a vehicle, and a system on chip.
Background
The image system of backing a car can show the real-time image of on-vehicle back vision camera, and the audio-visual suggestion driver environmental conditions behind the car provides convenience for parking, backing a car. How to rapidly transmit the image collected by the vehicle-mounted rearview camera to a system-on-chip in the vehicle so as to rapidly display the image collected by the rearview camera by a display device in the vehicle, and further improve the driving safety of the vehicle is a constantly pursued target in the driving safety assistance field.
Disclosure of Invention
The embodiment of the application provides a data transmission method, an image acquisition device on a vehicle and a system-on-chip.
The technical scheme of the embodiment of the application is realized as follows:
in a first aspect, an embodiment of the present application provides a data transmission method, which is applied to an image capture device on a vehicle, where the method includes: acquiring a first image and a second image corresponding to the environment where the vehicle is located in the driving process at adjacent moments, wherein the acquisition moment of the first image is earlier than that of the second image; determining data to be transmitted according to first data corresponding to the first image and second data corresponding to the second image, wherein the first data does not comprise the data to be transmitted; and transmitting the data to be transmitted to a system-on-chip in the vehicle so as to enable the system-on-chip to generate the second image based on the data to be transmitted, and displaying the second image through a display device in the vehicle.
According to the embodiment of the application, the image to be transmitted is determined according to the two images acquired at the adjacent moments, and the data volume transmitted between the image acquisition device and the system-on-chip can be reduced by transmitting the data corresponding to the image to be transmitted, so that the speed of transmitting the data to the system-on-chip by the image acquisition device is increased.
In some embodiments, the transmitting the data to be transmitted to a system-on-chip in the vehicle includes: and the image acquisition device transmits the data to be transmitted to the system-on-chip through a low-voltage differential signal transmission channel.
In some embodiments, the low voltage differential signaling channel includes at least any one of: the mobile terminal comprises a low-voltage differential signal interface, a mobile industry processor interface and a display interface.
In some embodiments, the determining data to be transmitted according to first data corresponding to the first image and second data corresponding to the second image includes:
determining data which is the same between first data corresponding to the first image and second data corresponding to the second image;
and determining that the data except the same data in the second data is the data to be transmitted.
In a second aspect, an embodiment of the present application provides a data transmission method, which is applied to a system on chip in a vehicle, where the method includes:
receiving data to be transmitted sent by an image acquisition device on the vehicle; the data to be transmitted is determined according to first data corresponding to the first image and second data corresponding to the second image, the first data do not include the data to be transmitted, the first image and the second image are respectively images corresponding to environments where the vehicle is located in the driving process and acquired by the image acquisition device at adjacent moments, and the acquisition moment of the first image is earlier than that of the second image;
generating the second image based on the data to be transmitted and the driving parameters of the vehicle;
and sending data corresponding to the second image to a display device in the vehicle to enable the display device to display the second image.
In some embodiments, the receiving data to be transmitted sent by an image acquisition device on the vehicle includes:
and the system-level chip receives the data to be transmitted sent by the image acquisition device through a low-voltage differential signal transmission channel.
In some embodiments, the low voltage differential signaling channel includes at least any one of: low voltage differential signal interface, mobile industry processor interface and display interface.
In some embodiments, the generating the second image based on the difference data and the driving parameter of the vehicle comprises:
the driving parameters of the vehicle include a driving speed of the vehicle and a driving direction of the vehicle; determining first subdata in first data stored by the system-on-chip based on the driving speed and the driving direction of the vehicle; the first subdata is data different from the second data in the first data;
splicing the image corresponding to the data to be transmitted and the image corresponding to the second subdata in the first data according to the driving direction of the vehicle to obtain a second image; the second subdata is data except the first subdata in the first data.
In a third aspect, an embodiment of the present application provides an image capturing device on a vehicle, where the image capturing device includes:
the acquisition unit is used for acquiring a first image and a second image corresponding to the environment of the vehicle in the driving process at adjacent moments, wherein the acquisition moment of the first image is earlier than that of the second image;
the determining unit is used for determining data to be transmitted according to first data corresponding to the first image and second data corresponding to the second image, wherein the first data does not comprise the data to be transmitted;
the first sending unit is used for transmitting the data to be transmitted to a system-on-chip in the vehicle so as to enable the system-on-chip to generate the second image based on the data to be transmitted, and the second image is displayed through a display unit in the vehicle.
In a fourth aspect, an embodiment of the present application provides a system-on-chip in a vehicle, where the system-on-chip includes:
the receiving unit is used for receiving data to be transmitted sent by an image acquisition device on the vehicle; the data to be transmitted is determined according to first data corresponding to the first image and second data corresponding to the second image, the first data do not include the data to be transmitted, the first image and the second image are respectively images corresponding to environments where the vehicle is located in the driving process and acquired by the image acquisition device at adjacent moments, and the acquisition moment of the first image is earlier than that of the second image;
a generating unit configured to generate the second image based on the data to be transmitted and a driving parameter of the vehicle;
and the second sending unit is used for sending second data corresponding to the second image to a display unit in the vehicle so as to enable the display unit to display the second image.
In a fifth aspect, embodiments of the present application provide a component in a vehicle, where the component includes a system-on-chip as described in embodiments of the present application.
In a sixth aspect, an embodiment of the present application provides a transportation device, where the transportation device includes the system on chip according to the embodiment of the present application.
In a seventh aspect, an embodiment of the present application provides a computer-readable storage medium, which stores executable instructions and is used for implementing the data transmission method provided in the embodiment of the present application when being executed by a processor.
In an eighth aspect, the present application provides a computer program product, which is characterized in that the computer program product includes computer programs/instructions, and when the computer programs/instructions are executed by a processor, the data transmission method described above is implemented.
The data transmission method provided by the embodiment of the application comprises the following steps: the method comprises the steps that an image acquisition device on a vehicle acquires a first image and a second image corresponding to the environment where the vehicle is located in the driving process at adjacent moments, and data to be transmitted are determined according to first data corresponding to the first image and second data corresponding to the second image; transmitting the data to be transmitted to a system-on-chip in the vehicle; and enabling the system-on-chip to generate a second image based on the data to be transmitted and the driving parameters of the vehicle, and sending data corresponding to the second image to a display device in the vehicle so as to enable the display device to display the second image. According to the embodiment of the application, the data corresponding to the image part which changes in the images acquired twice in the adjacent manner is transmitted, so that the data quantity transmitted between the image acquisition device and the system-on-chip can be reduced, the data transmission efficiency is improved, the system-on-chip can quickly acquire the image part of the image acquired by the image acquisition device at the current moment and the image part of the image acquired by the image acquisition device at the last moment after the image acquisition device acquires the image, and the display device in the vehicle can quickly display the image acquired by the image acquisition device at the current moment; therefore, the vehicle driver can quickly acquire the information of the road behind the vehicle to assist the vehicle driver in driving the vehicle, and the driving safety of the vehicle is improved.
Drawings
Fig. 1 is a schematic processing flow diagram of an alternative data transmission method provided in an embodiment of the present application;
FIG. 2 is a schematic diagram of a first image provided by an embodiment of the present application;
FIG. 3 is a schematic diagram of a second image provided by an embodiment of the present application;
fig. 4 is a schematic processing flow diagram of an alternative data transmission method provided in the embodiment of the present application;
FIG. 5 is an alternative schematic diagram of a first image captured by a vehicle provided by an embodiment of the application;
FIG. 6 is an alternative schematic diagram of a second image captured by a vehicle provided by an embodiment of the application;
fig. 7 is a schematic structural diagram of an image capturing device provided in an embodiment of the present application;
fig. 8 is a schematic structural diagram of a system-on-chip provided in an embodiment of the present application;
fig. 9 is a schematic diagram of a hardware component structure of a system-on-chip according to an embodiment of the present disclosure.
Detailed Description
In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be described in further detail with reference to the attached drawings, the described embodiments should not be considered as limiting the present application, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.
In the following description, reference is made to "some embodiments" which describe a subset of all possible embodiments, but it is understood that "some embodiments" may be the same subset or different subsets of all possible embodiments, and may be combined with each other without conflict.
In the following description, references to the terms "first," "second," and the like, are intended only to distinguish similar objects and not to imply a particular order to the objects, it being understood that "first," "second," and the like may be interchanged under appropriate circumstances or a sequential order, such that the embodiments of the application described herein may be practiced in other than those illustrated or described herein.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of the present application only and is not intended to be limiting of the application.
It should be understood that, in the various embodiments of the present application, the size of the serial number of each implementation process does not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.
Fig. 1 is a schematic processing flow diagram of an alternative data transmission method according to an embodiment of the present application, where the data transmission method is applied to an image capturing device on a vehicle, and the data transmission method at least includes the following steps:
s101, an image acquisition device on a vehicle acquires a first image and a second image corresponding to the environment where the vehicle is located in the driving process at adjacent moments; the acquisition time of the first image is earlier than the acquisition time of the second image.
In some embodiments, the image capture device on the vehicle may be a camera mounted behind the vehicle, such as a far infrared wide angle camera mounted at a trunk handle of the vehicle. The first image and the second image may be images corresponding to a road behind the vehicle captured by the image capturing device. As an example, from the first image and the second image, it may be determined whether there is a person or an obstacle on the road behind the vehicle.
In some embodiments, the time interval for the image acquisition device to acquire the images may be set, for example, if the time interval for acquiring the images every 5 seconds is set to be 5 seconds.
Step S102, determining data to be transmitted according to first data corresponding to the first image and second data corresponding to the second image; the first data does not include the data to be transmitted.
In some embodiments, the first image and the second image may each be divided into N regions, N being a positive integer; and respectively identifying the N areas divided by the first image and the second image by using the identifiers. Wherein the identifier may be a number, letter, symbol, etc.
As shown in fig. 2, the first image is divided into 9 regions, and the 9 regions of the first image are respectively marked by consecutive numbers 1, 2, and 3 \82309, and then the first data are consecutive numbers 1, 2, and 3 \82309. As shown in fig. 3, the second image is divided into 9 regions, and the 9 regions of the second image are respectively marked by continuous numbers 4, 5, 6 \823012, so that the second data are continuous numbers 4, 5, 6 \823012.
In some embodiments, determining a specific implementation process of data to be transmitted according to first data corresponding to the first image and second data corresponding to the second image may include: determining data which is the same between first data corresponding to the first image and second data corresponding to the second image; and determining that the data except the same data in the second data is the data to be transmitted.
Taking fig. 2 and fig. 3 as an example, the first data corresponding to the first image is an identifier corresponding to the first image, and the second data corresponding to the second image is an identifier corresponding to the second image. Comparing the identifier corresponding to the first image with the identifier corresponding to the second image by the image acquisition device on the vehicle to obtain the same identifier between the identifier corresponding to the second image and the identifier corresponding to the first image; determining data to be transmitted includes: and removing the identifier obtained by the same identifier from the identifier corresponding to the second image. Taking the first image shown in fig. 2 and the second image shown in fig. 3 as an example, the data to be transmitted includes identifiers 10, 11, and 12. The data to be transmitted further includes: metadata of the images represented by identifiers 10, 11 and 12.
Step S103, transmitting the data to be transmitted to a system-on-chip in the vehicle, so that the system-on-chip generates the second image based on the data to be transmitted, and a display device in the vehicle displays the second image.
In some embodiments, the image capture device on the vehicle transmits data to be transmitted to the system-on-chip via a Low-Voltage Differential Signaling (LVDS) transmission channel. The LVDS transmission channel includes at least any one of: an LVDS Interface, a Mobile Industry Processor Interface (MIPI) Interface, and a display Interface (miniLVDS).
Compared with the prior art that an expensive high-speed transmission module (serdes module) is additionally mounted on the vehicle to transmit the reverse image data, the vehicle-mounted reverse image data transmission method and device can reduce the cost of the vehicle by transmitting the data to be transmitted through the existing LVDS transmission in the vehicle.
In some embodiments, an image acquisition device on a vehicle transmits the data to be transmitted to a system-on-chip in the vehicle; because the data to be transmitted comprises the metadata corresponding to the image part of the second image different from the first image and the identifier corresponding to the image part of the second image different from the first image, the data transmitted to the system-on-chip by the image acquisition device only comprises the changed image part of the two images acquired at adjacent moments and the identifier corresponding to the changed image part.
Compared with the prior art in which the image acquisition device transmits all the images acquired by the image acquisition device and the system-on-chip transmission image acquisition device, the embodiment of the application can reduce the data amount transmitted between the image acquisition device and the system-on-chip by transmitting the changed image parts in the images acquired by two adjacent times and the identifiers corresponding to the changed image parts, improve the data transmission efficiency, and enable the system-on-chip to rapidly acquire the image parts of the image acquired by the image acquisition device at the current moment and the image parts of the image at the previous moment after the image acquisition device acquires the images, so that the display device in the vehicle can rapidly display the image acquired by the image acquisition device at the current moment; therefore, the vehicle driver can quickly acquire the information of the road behind the vehicle to assist the vehicle driver in driving the vehicle, and the driving safety of the vehicle is improved.
Fig. 4 is a schematic view of another alternative processing flow of a data transmission method provided in an embodiment of the present application, where the data transmission method is applied to a system-on-chip on a vehicle, and the data transmission method at least includes the following steps:
step S201, a system on a vehicle chip receives data to be transmitted, which is sent by an image acquisition device on the vehicle.
In some embodiments, the image capture device on the vehicle transmits the data to be transmitted to the system-on-chip via the LVDS transmission channel. Wherein, the LVDS transmission channel at least comprises any one of the following items: LVDS interface, MIPI and miniLVDS.
Compared with the prior art that an expensive high-speed transmission module (serdes module) is additionally mounted on the vehicle to transmit the reverse image shadow data, the vehicle cost can be reduced by transmitting the data to be transmitted through the existing LVDS in the vehicle.
In some embodiments, the data to be transmitted may be determined by an image acquisition device on the vehicle according to first data corresponding to the first image and second data corresponding to the second image; the first image and the second image are images which are acquired by the image acquisition device at adjacent moments and correspond to the environment where the vehicle is located in the driving process. The image capturing device may determine the data to be transmitted according to the technical scheme described in step S102.
In step S202, the system on chip generates a second image based on the data to be transmitted and the driving parameters of the vehicle.
In some embodiments, the driving parameters of the vehicle may include a driving speed of the vehicle and a driving direction of the vehicle. The orientation of the image in the second image, which is newly added compared to the first image, in the second image can be determined according to the driving direction of the vehicle. The size or dimension of the image added to the second image compared to the first image may be determined according to the traveling speed of the vehicle.
In specific implementation, the specific implementation process of generating the second image based on the data to be transmitted and the driving parameters of the vehicle may include:
step S2021, determining first subdata in first data stored in the system-on-chip based on the running speed and the running direction of the vehicle; the first subdata is data different from the second data in the first data.
In some embodiments, the system on chip can determine which position of the first image the image disappears as the vehicle travels according to the traveling direction of the vehicle; if the vehicle is traveling to the left, the right image in the first image will disappear. The system-on-chip can determine the size of the image disappeared in the first image according to the driving speed of the vehicle, and further determine the part of the first image included in the second image. As an example, in an alternative schematic diagram of a first image captured by a vehicle, as shown in fig. 5, the image capturing device can capture first data corresponding to the first image, where the first data includes identifiers 31, 32, 33, 40, 41, 42, 49, 50, and 51, and the size of the first image is 3m × 3m. If the vehicle runs to the left and the running speed of the vehicle is 1m/s, the system-on-chip can determine that the size of the disappeared image in the first image accounts for one third of the size of the first image according to the fact that the running direction of the vehicle is to the left, and the identifiers of the disappeared images in the first image are 33, 42 and 51; accordingly, the identifiers of the first sub-data in the first data corresponding to the first image are 33, 42, and 51.
Step S2022, according to the driving direction of the vehicle, splicing the image corresponding to the data to be transmitted and the image corresponding to the second subdata in the first data to obtain a second image; the second subdata is data except the first subdata in the first data.
In some embodiments, if the vehicle runs to the left, the data to be transmitted is spliced on the left side of the second subdata; and generating a second image according to the spliced data. An alternative schematic of the second image captured by the vehicle, as shown in fig. 6, has identifiers 30, 39 and 48 for the data to be transmitted; it may be determined from step S2021 that the second sub data includes the identifiers 31, 32, 40, 41, 49, and 50; therefore, the image corresponding to the data to be transmitted and the image corresponding to the second subdata are spliced to obtain a second image.
In this embodiment of the application, if the image captured by the image capturing device is a 720p frame and the playing speed of the image is 30fps, the bandwidth required by the image capturing device to send the first image to the system-on-chip is about 800Mbps. The size of the image which is changed between two images acquired by the image acquisition device at adjacent moments occupies one third of the size of one image, so that the bandwidth for transmitting the difference image to the system-on-chip by the image acquisition device is one third of 800Mbps and is about 270Mbps. The bandwidth required for transmitting the difference image is much less than the 400Mbps bandwidth that the ordinary LVDS interface can provide. Compared with the prior art that an expensive high-speed transmission module (serdes module) is additionally mounted on a vehicle to transmit the backing image video data, the embodiment of the application transmits the data to be transmitted through the existing LVDS transmission in the vehicle, and the cost of the vehicle can be reduced.
Step S203, the system on chip sends data corresponding to the second image to a display device in the vehicle, so that the display device displays the second image.
According to the embodiment of the application, the changed image part in the images acquired twice in the adjacent way and the identifier corresponding to the changed image part are transmitted, so that the data volume transmitted between the image acquisition device and the system-on-chip can be reduced, the data transmission efficiency is improved, the system-on-chip can quickly acquire the image part of the image acquired by the image acquisition device at the current moment and the image part of the image acquired by the image acquisition device at the last moment after the image acquisition device acquires the image, and the display device in the vehicle can quickly display the image acquired by the image acquisition device at the current moment; therefore, the vehicle driver can quickly acquire the information of the road behind the vehicle to assist the vehicle driver in driving the vehicle, and the driving safety of the vehicle is improved.
The embodiment of the present application provides an image acquisition device on a vehicle, and a composition structure of the image acquisition device, as shown in fig. 7, includes:
the acquisition unit 301 is configured to acquire a first image and a second image corresponding to an environment where the vehicle is located in a driving process at adjacent moments, where an acquisition moment of the first image is earlier than an acquisition moment of the second image;
a determining unit 302, configured to determine data to be transmitted according to first data corresponding to the first image and second data corresponding to the second image; wherein the first data does not include the data to be transmitted;
a first sending unit 303, configured to transmit the data to be transmitted to a system-on-chip in the vehicle, so that the system-on-chip generates the second image based on the data to be transmitted, and a display unit in the vehicle displays the second image.
In some embodiments, the first sending unit 303 is configured to transmit the data to be transmitted to the system-on-chip through a low-voltage differential signal transmission channel.
In some embodiments, the low voltage differential signaling channel comprises at least any one of: the mobile terminal comprises a low-voltage differential signal interface, a mobile industry processor interface and a display interface.
In some embodiments, the determining unit 302 is configured to determine data that is the same between first data corresponding to the first image and second data corresponding to the second image;
and determining that the data except the same data in the second data is the data to be transmitted.
In this embodiment of the application, the acquisition unit 301 is connected to the determination unit 302, and the determination unit 302 is further connected to the first sending unit 303. The function of the acquisition unit 301 can be realized by a camera; the function of the determination unit 302 may be implemented by a processor; the function of the first transmission unit 303 may be implemented by a signal transmitter.
The embodiment of the present application provides a system-on-chip, and a structure of the system-on-chip, as shown in fig. 8, includes:
a receiving unit 401, configured to receive data to be transmitted, where the data is sent by an image acquisition device on the vehicle; the data to be transmitted is determined according to first data corresponding to the first image and second data corresponding to the second image, the first data do not include the data to be transmitted, the first image and the second image are respectively images corresponding to environments where the vehicle is located in the driving process and acquired by the image acquisition device at adjacent moments, and the acquisition moment of the first image is earlier than that of the second image;
a generating unit 402 configured to generate the second image based on the data to be transmitted and a driving parameter of the vehicle;
a second sending unit 403, configured to send data corresponding to the second image to a display unit in the vehicle, so that the display unit displays the second image.
In some embodiments, the receiving unit 401 is configured to receive the data to be transmitted sent by the image capturing device through a low voltage differential signal transmission channel.
In some embodiments, the low voltage differential signaling channel includes at least any one of: the mobile terminal comprises a low-voltage differential signal interface, a mobile industry processor interface and a display interface.
In some embodiments, the driving parameter of the vehicle includes a driving speed of the vehicle and a driving direction of the vehicle, and the generating unit 402 is configured to determine first sub data in the first data stored in the system-on-chip based on the driving speed of the vehicle and the driving direction of the vehicle; the first subdata is different from the second data in the first data;
splicing the image corresponding to the data to be transmitted and the image corresponding to the second subdata in the first data according to the driving direction of the vehicle to obtain a second image; the second subdata is data except the first subdata in the first data.
In the embodiment of the present application, the receiving unit 401 is connected to the generating unit 402, and the generating unit 402 is further connected to the second transmitting unit 403. Wherein, the function of the receiving unit 401 can be realized by a signal receiver; the function of the generating unit 402 may be implemented by a processor; the function of the second transmitting unit 403 may be implemented by a signal transmitter.
As shown in fig. 9, a system-on-chip 700 includes at least one processor 710, a memory 750, and a bus 740; the various components in the system-on-chip 700 are coupled together by a bus 740. It is understood that the bus 740 is used to enable connected communication between these components. The bus 740 includes a power bus, a control bus, and a status signal bus, in addition to a data bus. But for clarity of illustration the various busses are labeled in figure 9 as bus 740.
The Processor 710 may be built in a system on chip or an Application Specific Integrated Circuit (ASIC), or the Processor 710 may be located on a separate semiconductor chip and have Signal processing capability, such as a general purpose Processor, a Digital Signal Processor (DSP), a microprocessor, a Micro Control Unit (MCU), or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, etc., wherein the general purpose Processor may be a microprocessor or any conventional Processor, etc.
The memory 750 stores executable instructions for implementing the data transmission method provided in the embodiment of the present application, and the task processing data transmission method can be implemented by the receiving unit 401, the generating unit 402, and the second sending unit 403 in the chip shown in fig. 8; the memory 750 may be removable, non-removable, or a combination thereof. Exemplary hardware devices include solid state memory, hard disk drives, optical disk drives, and the like. Memory 750 optionally includes one or more storage devices physically located remote from processor 710.
In some embodiments, memory 750 is capable of storing data to support various operations, examples of which include programs, modules, and data structures, or subsets or supersets thereof.
In some embodiments, the system-on-chip 700 may further include:
an operating system 751, including system programs for handling various basic system services and performing hardware-related tasks, such as a framework layer, a core library layer, a driver layer, etc., for implementing various basic services and for handling hardware-based tasks;
a network communication module 752 for communicating to other computing devices via one or more (wired or wireless) network interfaces 720, the exemplary network interfaces 720 including: bluetooth, wireless fidelity (WiFi), and Universal Serial Bus (USB), among others.
The embodiment of the application also provides a component in the vehicle, wherein the component comprises a chip, and the chip can execute the data transmission method provided by the embodiment of the application.
In alternative embodiments, the component may be a chassis, a door, a main panel, an instrument panel, or the like.
The embodiment of the application also provides a traffic device, which comprises a chip, wherein the chip can execute the data transmission method provided by the embodiment of the application.
Embodiments of the present application provide a computer-readable storage medium storing executable instructions, where the executable instructions are stored, and when executed by a processor, the executable instructions cause the processor to execute the data transmission method provided by the embodiments of the present application.
In some embodiments, the computer-readable storage medium may be memory such as FRAM, ROM, PROM, EP ROM, EEPROM, flash memory, magnetic surface memory, optical disk, or CD-ROM; or may be various devices including one or any combination of the above memories.
In some embodiments, executable instructions may be written in any form of programming language (including compiled or interpreted languages), in the form of programs, software modules, scripts or code, and may be deployed in any form, including as a stand-alone program or as a module, component, subroutine, or other unit suitable for use in a computing environment.
By way of example, executable instructions may be deployed to be executed on one computing device or on multiple computing devices at one site or distributed across multiple sites and interconnected by a communication network.
Embodiments of the present application provide a computer program product comprising a computer program/instructions, which when executed by a processor, implement the instruction dispatching method described herein.
The above description is only an example of the present application, and is not intended to limit the scope of the present application. Any modification, equivalent replacement, and improvement made within the spirit and scope of the present application are included in the protection scope of the present application.
Claims (14)
1. A data transmission method, characterized in that, applied to an image acquisition device on a vehicle, the method comprises:
acquiring a first image and a second image corresponding to the environment where the vehicle is located in the driving process at adjacent moments, wherein the acquisition moment of the first image is earlier than that of the second image;
determining data to be transmitted according to first data corresponding to the first image and second data corresponding to the second image, wherein the first data does not comprise the data to be transmitted;
and transmitting the data to be transmitted to a system-on-chip in the vehicle so as to enable the system-on-chip to generate the second image based on the data to be transmitted, and displaying the second image through a display device in the vehicle.
2. The method of claim 1, wherein the transmitting the data to be transmitted to a system-on-chip within the vehicle comprises:
and the image acquisition device transmits the data to be transmitted to the system-on-chip through a low-voltage differential signal transmission channel.
3. The method of claim 2, wherein the low voltage differential signaling channel comprises at least any one of:
the mobile terminal comprises a low-voltage differential signal interface, a mobile industry processor interface and a display interface.
4. The method according to claim 1, wherein the determining data to be transmitted according to the first data corresponding to the first image and the second data corresponding to the second image comprises:
determining data which is the same between first data corresponding to the first image and second data corresponding to the second image;
and determining that the data except the same data in the second data is the data to be transmitted.
5. A data transmission method, applied to a system on chip in a vehicle, the method comprising:
receiving data to be transmitted sent by an image acquisition device on a vehicle; the data to be transmitted are determined according to first data corresponding to a first image and second data corresponding to a second image, the first data do not comprise the data to be transmitted, the first image and the second image are respectively images which are acquired by the image acquisition device at adjacent moments and correspond to environments where the vehicle is located in the driving process, and the acquisition moment of the first image is earlier than that of the second image;
generating the second image based on the data to be transmitted and the driving parameters of the vehicle;
and sending data corresponding to the second image to a display device in the vehicle to enable the display device to display the second image.
6. The method according to claim 5, wherein the receiving data to be transmitted sent by an image acquisition device on the vehicle comprises:
and the system-on-chip receives the data to be transmitted sent by the image acquisition device through a low-voltage differential signal transmission channel.
7. The method of claim 6, wherein the low voltage differential signaling channel comprises at least any one of:
low voltage differential signal interface, mobile industry processor interface and display interface.
8. The method of claim 1, wherein the generating the second image based on the difference data and the driving parameters of the vehicle comprises:
the driving parameters of the vehicle include a driving speed of the vehicle and a driving direction of the vehicle; determining first subdata in first data stored by the system-on-chip based on the driving speed and the driving direction of the vehicle; the first subdata is data different from the second data in the first data;
splicing the image corresponding to the data to be transmitted and the image corresponding to the second subdata in the first data according to the driving direction of the vehicle to obtain a second image; the second subdata is data except the first subdata in the first data.
9. An image capture device on a vehicle, the image capture device comprising:
the acquisition unit is used for acquiring a first image and a second image corresponding to the environment where the vehicle is located in the driving process at adjacent moments, wherein the acquisition moment of the first image is earlier than that of the second image;
the determining unit is used for determining data to be transmitted according to first data corresponding to the first image and second data corresponding to the second image, wherein the first data does not comprise the data to be transmitted;
the first sending unit is used for transmitting the data to be transmitted to a system-on-chip in the vehicle so as to enable the system-on-chip to generate the second image based on the data to be transmitted, and the second image is displayed through a display unit in the vehicle.
10. A system-on-chip in a vehicle, the system-on-chip comprising:
the receiving unit is used for receiving data to be transmitted sent by an image acquisition device on the vehicle; the data to be transmitted is determined according to first data corresponding to the first image and second data corresponding to the second image, the first data do not include the data to be transmitted, the first image and the second image are respectively images corresponding to environments where the vehicle is located in the driving process and acquired by the image acquisition device at adjacent moments, and the acquisition moment of the first image is earlier than that of the second image;
a generating unit configured to generate the second image based on the data to be transmitted and a driving parameter of the vehicle;
and the second sending unit is used for sending data corresponding to the second image to a display unit in the vehicle so as to enable the display unit to display the second image.
11. A component in a vehicle, characterized in that the component comprises the system-on-chip of claim 10.
12. A transportation device comprising the system-on-chip of claim 10.
13. A computer-readable storage medium having stored thereon executable instructions for, when executed by a processor, implementing the method of any one of claims 1 to 4 or 5 to 8.
14. A computer program product, characterized in that the computer program product comprises a computer program-
Instructions which when executed by a processor implement the method of any one of claims 1 to 4 or 5 to 8.
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| CN202211534306.6A CN115767038A (en) | 2022-12-01 | 2022-12-01 | Data transmission method, image acquisition device on vehicle and system-on-chip |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220321840A1 (en) * | 2021-03-30 | 2022-10-06 | Shenzhen Antu Autonomous Driving Technologies Ltd. | Method for transmitting high bandwidth camera data through serdes links |
| CN116691502A (en) * | 2023-08-01 | 2023-09-05 | 北京芯驰半导体科技有限公司 | Safety detection method and device for vehicle environment, electronic equipment and storage medium |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220321840A1 (en) * | 2021-03-30 | 2022-10-06 | Shenzhen Antu Autonomous Driving Technologies Ltd. | Method for transmitting high bandwidth camera data through serdes links |
| US11902706B2 (en) * | 2021-03-30 | 2024-02-13 | Shenzhen Antu Autonmous Driving Technologies Ltd. | Method for transmitting high bandwidth camera data through SerDes links |
| CN116691502A (en) * | 2023-08-01 | 2023-09-05 | 北京芯驰半导体科技有限公司 | Safety detection method and device for vehicle environment, electronic equipment and storage medium |
| CN116691502B (en) * | 2023-08-01 | 2023-11-10 | 北京芯驰半导体科技有限公司 | Safety detection method and device for vehicle environment, electronic equipment and storage medium |
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