CN114758427A - Automobile data recorder and method for realizing augmented reality navigation - Google Patents
Automobile data recorder and method for realizing augmented reality navigation Download PDFInfo
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- CN114758427A CN114758427A CN202110021864.1A CN202110021864A CN114758427A CN 114758427 A CN114758427 A CN 114758427A CN 202110021864 A CN202110021864 A CN 202110021864A CN 114758427 A CN114758427 A CN 114758427A
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
- G07C5/0841—Registering performance data
- G07C5/085—Registering performance data using electronic data carriers
- G07C5/0866—Registering performance data using electronic data carriers the electronic data carrier being a digital video recorder in combination with video camera
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0968—Systems involving transmission of navigation instructions to the vehicle
- G08G1/0969—Systems involving transmission of navigation instructions to the vehicle having a display in the form of a map
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Multimedia (AREA)
- Time Recorders, Dirve Recorders, Access Control (AREA)
- Traffic Control Systems (AREA)
Abstract
The invention provides a vehicle event data recorder and a method for realizing augmented reality navigation. The automobile data recorder comprises a camera, a digital signal processor, a controller local area network interface, a micro control unit and a transmission module. The digital signal processor comprises an image signal processor module, an augmented reality creating module and a coding module. The camera is used for collecting an environment image; the image signal processor module is used for carrying out image processing on the environment image to generate a processed environment image; the micro-control unit is used for receiving navigation information from an infotainment system host of the vehicle through the CAN interface; the augmented reality creating module is used for superposing the processed environment image and the navigation information to generate augmented reality navigation data; the encoding module is used for encoding the augmented reality navigation data; and the transmission module is used for transmitting the encoded augmented reality navigation data to the display instrument. The invention can save hardware design cost and reduce the overall time delay of the system.
Description
Technical Field
Embodiments of the present invention generally relate to the field of car navigation technology, and more particularly, to a car recorder and a method for implementing augmented reality navigation.
Background
The traditional vehicle navigation is not particularly good in practical application, the mobile phone navigation is limited by factors such as the size of a smart phone and the environment in a vehicle, and a lot of unnecessary troubles or potential safety risks can be generated by using the mobile phone navigation in the driving process.
With the increasing demand of car users for more intuitive and understandable navigation functions and the increasing maturity of Augmented Reality (Augmented Reality) technologies, the application of the AR technology can improve the accuracy and convenience of the navigation function, and thus, vehicle-mounted AR navigation is brought forward. The AR navigation utilizes AR reality augmentation technology, combines real-time real scenes, and takes elements such as virtual models, arrows and dotted lines as user guidance directions on the basis of real road pictures shot by a camera in real time.
Current AR navigation typically employs functionality to implement AR creation in an infotainment host.
Disclosure of Invention
In order to solve the above problems in the prior art, an embodiment of the present invention provides a driving recorder, which includes a camera, a digital signal processor, a controller area network interface, a micro control unit, and a transmission module, where the digital signal processor includes an image signal processor module, an augmented reality creation module, and a coding module. And wherein the camera is used for acquiring an environment image; the image signal processor module in the digital signal processor is used for carrying out image processing on the environment image to generate a processed environment image; the micro-control unit is used for receiving navigation information from an infotainment system host of a vehicle through the controller area network interface; the augmented reality creating module is used for superposing the processed environment image and the navigation information to generate augmented reality navigation data; the encoding module is used for encoding the augmented reality navigation data to generate encoded augmented reality navigation data; and the transmission module is used for transmitting the encoded augmented reality navigation data to a display instrument.
In some embodiments, the tachograph further comprises a flash memory, a memory, and a hard disk. The flash memory is used for storing software codes operated by the image signal processor module, the micro control unit and the augmented reality creating module; the memory is used for storing image processing executed by the digital signal processor, the augmented reality creating module generates augmented reality navigation data, and the encoding module executes temporary data generated in the encoding process; the hard disk is to store one or more of the environmental image, the processed environmental image, the augmented reality navigation data, and the encoded augmented reality navigation data.
In some embodiments, the transmission module comprises an ethernet transmission module and/or a low voltage differential signaling transmission module.
In some embodiments, the image processing includes one or more of image distortion correction, white balance, noise reduction, color restoration, dynamic range adjustment.
In some embodiments, the encoding comprises compression encoding.
In another aspect, the embodiment of the present invention provides a method for implementing augmented reality navigation, the method being applied to a vehicle event recorder, the vehicle event recorder comprising a camera, a digital signal processor, a controller area network interface, a micro control unit and a transmission module, wherein the digital signal processor comprises an image signal processor module, an augmented reality creation module and an encoding module. The method comprises the following steps: collecting an environment image through the camera; performing image processing on the environmental image by the image signal processor module in the digital signal processor to generate a processed environmental image; receiving, by the micro-control unit, navigation information from an infotainment system host of a vehicle via the controller area network interface; overlaying the processed environment image and the navigation information through the augmented reality creating module to generate augmented reality navigation data; encoding, by the encoding module, the augmented reality navigation data to generate encoded augmented reality navigation data; and transmitting the encoded augmented reality navigation data to a display instrument through the transmission module.
In some embodiments, the vehicle event recorder further comprises a flash memory, a memory, and a hard disk. And, the method further comprises: the image signal processor module, the micro control unit and the augmented reality creating module read software codes to be run from the flash memory; storing temporary data generated by the digital signal processor in the image processing process, the augmented reality creating module in the augmented reality navigation data generation process and the encoding module in the encoding process in the memory; storing one or more of the environmental image, the processed environmental image, the augmented reality navigation data, and the encoded augmented reality navigation data in the hard disk.
In some embodiments, transmitting, by the transmission module, the encoded augmented reality navigation data to a display meter comprises: transmitting, by the transmission module, the encoded augmented reality navigation data to a display meter via Ethernet; and/or transmitting, by the transmission module, the encoded augmented reality navigation data to a display meter via a low voltage differential signal.
In some embodiments, image processing the environmental image by the image signal processor module in the digital signal processor comprises: performing one or more of image distortion correction, white balance, noise reduction, color restoration, dynamic range adjustment on the environmental image by the image signal processor module in the digital signal processor.
In some embodiments, encoding, by the encoding module, the augmented reality navigation data comprises: and carrying out compression coding on the augmented reality navigation data through the coding module.
The automobile data recorder and the method for realizing augmented reality navigation provided by the embodiment of the invention have the advantages that the AR creation module is arranged in the automobile data recorder, the automobile data recorder is redesigned, the AI (Artificial Intelligence) calculation power of the automobile data recorder is increased, and the AR creation function is realized in the automobile data recorder. On one hand, hardware design cost can be saved, on the other hand, the routing path of the video data stream is reduced once, the AR navigation function can be completed without processing the video through the vehicle-mounted information entertainment system, the AR navigation video data stream is directly sent to the display instrument through the automobile data recorder, the overall delay of the system can be reduced, the higher requirements of the AR navigation on the real-time performance and the low delay performance of the system are met, and the AR navigation performance is improved.
Drawings
The above and other objects, features and advantages of embodiments of the present invention will become readily apparent from the following detailed description, which proceeds with reference to the accompanying drawings. Several embodiments of the present invention are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which:
FIG. 1 shows a schematic block diagram of an implementation of augmented reality navigation functionality according to an embodiment of the invention;
FIG. 2 illustrates a schematic block diagram of a prior art implementation of augmented reality navigation functionality;
fig. 3 shows a flow diagram of a method for implementing augmented reality navigation according to an embodiment of the invention.
In the drawings, the same or corresponding reference numerals indicate the same or corresponding parts.
Detailed Description
The principles and spirit of the present invention will be described with reference to several exemplary embodiments. It is understood that these embodiments are given solely for the purpose of enabling those skilled in the art to better understand and to practice the invention, and are not intended to limit the scope of the invention in any way.
In one aspect, embodiments of the present invention provide a tachograph. Referring to fig. 1, a schematic block diagram of an implementation of an augmented reality navigation function according to an embodiment of the present invention is shown. As shown in fig. 1, the tachograph according to an embodiment of the present invention includes a camera, a Digital Signal Processor (DSP), a Controller Area Network (CAN) interface, a MicroControl Unit (MCU), and a transmission module. The DSP includes an Image Signal Processor (ISP) module, an Augmented Reality (AR) creation module, and an encoding module.
The camera may be used to capture an environmental image. As an example, the environmental image may be a video stream acquired by a vehicle recorder in real time during driving.
The ISP module in the DSP may be used to image process the ambient image to generate a processed ambient image. As an embodiment of the present invention, the image processing includes one or more of image distortion correction, white balance, noise reduction, color restoration, dynamic range adjustment.
The MCU may be used to receive navigation information from the infotainment system host of the vehicle via the CAN interface.
The AR creation module may be configured to overlay the processed environmental image and the navigation information to generate AR navigation data, such as an AR navigation video stream.
The encoding module may be configured to encode the AR navigation data to generate encoded AR navigation data. As an embodiment of the present invention, the encoding includes compression encoding. For example, the H.264 or H.265 coding standard may be employed.
The transmission module may be to transmit the encoded AR navigation data to a display meter. For example only, the display meter may be an all liquid crystal meter, for example. As an embodiment of the present invention, the transmission module includes an ethernet transmission module and/or a Low-Voltage Differential Signaling (LVDS) transmission module.
Referring to fig. 2, a schematic block diagram of a prior art implementation of augmented reality navigation functionality is shown. In the existing function of implementing AR navigation, the automobile data recorder includes a camera, a DSP, an MCU, and a vehicle-mounted ethernet transmission module (shown as vehicle-mounted ethernet in the figure), where the DSP includes an ISP and a coding module. The method comprises the steps that an ISP (internet service provider) carries out image processing on an environment image (such as a real-time video) collected by a camera, an encoding module is used for encoding the processed environment image, a vehicle-mounted Ethernet transmission module transmits an encoded real-time video stream to an infotainment system host through a vehicle-mounted Ethernet, an AR (augmented reality) creating module in the infotainment system host generates AR navigation data, and the infotainment system host transmits the AR navigation data to a display instrument through the vehicle-mounted Ethernet. In the current AR navigation function, the function of an AR creation module is placed at the host end of an infotainment system, a longer video transmission link causes larger time delay, and the design complexity and the material cost of the infotainment system host are increased, so that the overall cost of the system is relatively higher.
Compared with the conventional implementation of the AR navigation function shown in fig. 2, the implementation of the AR navigation function provided by the embodiment of the present invention shown in fig. 1 sets an AR creation module in the driving recorder, redesigns the driving recorder, increases the AI (Artificial Intelligence) computing power of the driving recorder, and implements the AR creation function inside the driving recorder. On one hand, hardware design cost can be saved, on the other hand, the routing path of the video data stream is reduced once, the AR navigation function can be completed without processing the video through the vehicle-mounted information entertainment system, the AR navigation video data stream is directly sent to the display instrument through the automobile data recorder, the overall delay of the system can be reduced, the higher requirements of the AR navigation on the real-time performance and the low delay performance of the system are met, and the AR navigation performance is improved.
As shown in fig. 1, as an embodiment of the present invention, the automobile data recorder may further include a Flash Memory (Flash Memory), a Memory, and a hard disk.
The flash memory is used for storing software codes operated by the image signal processor module, the micro control unit and the augmented reality creating module.
The memory is used for storing image processing executed by the digital signal processor, augmented reality creating module for generating augmented reality navigation data and temporary data generated in the encoding process executed by the encoding module, the memory can be a volatile memory, and the internal data can be cleared after the system is powered off. By way of example, the memory may include double data rate synchronous dynamic random access memory (DDR SDRAM).
The hard disk is used for storing one or more of the environment image, the processed environment image, the augmented reality navigation data and the encoded augmented reality navigation data, the hard disk can be a nonvolatile memory, and the internal data cannot be cleared after the system is powered off.
Referring to fig. 3, a flow diagram of a method 300 for implementing augmented reality navigation is shown, in accordance with an embodiment of the present invention. The method 300 may be applied to the automobile data recorder proposed by the embodiment of the present invention described above. As shown in FIG. 3, method 300 includes steps S301-S306.
In step S301, an environment image is captured by a camera.
In step S302, the environmental image is image-processed by the image signal processor module in the digital signal processor to generate a processed environmental image.
In step S303, navigation information is received from the infotainment system host of the vehicle through the micro-control unit via the controller area network interface.
In step S304, the augmented reality creating module superimposes the processed environment image and the navigation information to generate augmented reality navigation data.
In step S305, the augmented reality navigation data is encoded by the encoding module, and encoded augmented reality navigation data is generated.
In step S306, the encoded augmented reality navigation data is transmitted to a display meter through a transmission module.
As an embodiment of the present invention, the method 300 may further include: the image signal processor module, the micro control unit and the augmented reality creating module read a software code to be operated from the flash memory; storing temporary data generated by the digital signal processor in the image processing process and the augmented reality creating module in the augmented reality navigation data generating process in a memory; one or more of the environmental image, the processed environmental image, the augmented reality navigation data, and the encoded augmented reality navigation data are stored in a hard disk.
As an embodiment of the present invention, step S306 may include: transmitting, by a transmission module, the encoded augmented reality navigation data to a display instrument via an Ethernet; and/or transmitting the encoded augmented reality navigation data to a display meter via a low voltage differential signal by a transmission module.
As an embodiment of the present invention, step S302 may include: and carrying out one or more of image distortion correction, white balance, noise reduction, color restoration and dynamic range adjustment on the environment image through an image signal processor module in the digital signal processor.
As an embodiment of the present invention, step S305 may include: and carrying out compression coding on the augmented reality navigation data through a coding module.
The automobile data recorder and the method for realizing augmented reality navigation provided by the embodiment of the invention integrate the AR creation function into the automobile data recorder, effectively reduce the cost and delay time of the system, and improve the performance of AR navigation.
The foregoing description of the embodiments of the invention has been presented for purposes of illustration and description, and is not intended to be exhaustive or to limit the invention to the precise forms disclosed. It will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed as the best mode contemplated for carrying out this invention, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (10)
1. A tachograph comprising a camera, a digital signal processor, a controller area network interface, a micro control unit and a transmission module, wherein the digital signal processor comprises an image signal processor module, an augmented reality creation module and an encoding module, and wherein,
the camera is used for collecting an environment image;
the image signal processor module in the digital signal processor is used for carrying out image processing on the environment image to generate a processed environment image;
the micro-control unit is used for receiving navigation information from an infotainment system host of a vehicle through the controller area network interface;
the augmented reality creating module is used for superposing the processed environment image and the navigation information to generate augmented reality navigation data;
the encoding module is used for encoding the augmented reality navigation data to generate encoded augmented reality navigation data; and
the transmission module is used for transmitting the encoded augmented reality navigation data to a display instrument.
2. The automobile data recorder according to claim 1, further comprising a flash memory, a memory and a hard disk,
The flash memory is used for storing software codes operated by the image signal processor module, the micro control unit and the augmented reality creating module;
the memory is used for storing image processing executed by the digital signal processor, the augmented reality creating module generates augmented reality navigation data, and the encoding module executes temporary data generated in the encoding process;
the hard disk is to store one or more of the environmental image, the processed environmental image, the augmented reality navigation data, and the encoded augmented reality navigation data.
3. The tachograph of claim 1, wherein the transmission module comprises an ethernet transmission module and/or a low voltage differential signal transmission module.
4. The tachograph of claim 1, wherein the image processing comprises one or more of image distortion correction, white balancing, noise reduction, colour restoration, dynamic range adjustment.
5. The tachograph of claim 1, wherein the encoding comprises compression encoding.
6. A method for realizing augmented reality navigation is applied to a vehicle event recorder, the vehicle event recorder comprises a camera, a digital signal processor, a controller local area network interface, a micro control unit and a transmission module, wherein the digital signal processor comprises an image signal processor module, an augmented reality creating module and an encoding module,
The method comprises the following steps:
collecting an environment image through the camera;
performing image processing on the environmental image by the image signal processor module in the digital signal processor to generate a processed environmental image;
receiving, by the micro-control unit, navigation information from an infotainment system host of a vehicle via the controller area network interface;
overlaying the processed environment image and the navigation information through the augmented reality creating module to generate augmented reality navigation data;
encoding, by the encoding module, the augmented reality navigation data to generate encoded augmented reality navigation data; and
transmitting, by the transmission module, the encoded augmented reality navigation data to a display meter.
7. The method for implementing augmented reality navigation of claim 6, wherein the tachograph further comprises a flash memory, a memory, and a hard disk, and,
the method further comprises the following steps:
the image signal processor module, the micro control unit and the augmented reality creating module read software codes to be run from the flash memory;
Storing temporary data generated in the image processing process of the digital signal processor, the augmented reality creating module generating the augmented reality navigation data and the encoding process of the encoding module in the memory;
storing one or more of the environmental image, the processed environmental image, the augmented reality navigation data, and the encoded augmented reality navigation data in the hard disk.
8. The method for implementing augmented reality navigation of claim 6, wherein transmitting the encoded augmented reality navigation data to a display meter via the transmission module comprises:
transmitting, by the transmission module, the encoded augmented reality navigation data to a display meter via Ethernet; and/or
Transmitting, by the transmission module, the encoded augmented reality navigation data to a display instrument via a low voltage differential signal.
9. The method for augmented reality navigation of claim 6, wherein image processing the environmental image by the image signal processor module in the digital signal processor comprises:
And performing one or more of image distortion correction, white balance, noise reduction, color restoration and dynamic range adjustment on the environment image through the image signal processor module in the digital signal processor.
10. The method for implementing augmented reality navigation of claim 6, wherein encoding the augmented reality navigation data by the encoding module comprises:
and carrying out compression coding on the augmented reality navigation data through the coding module.
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| WO2017008749A1 (en) * | 2015-07-15 | 2017-01-19 | 视讯联合科技股份有限公司 | Headphone having hidden video screen and various sensors |
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