CN114827534A - Display method of vehicle detection image and vehicle-mounted device - Google Patents
Display method of vehicle detection image and vehicle-mounted device Download PDFInfo
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- CN114827534A CN114827534A CN202210351280.5A CN202210351280A CN114827534A CN 114827534 A CN114827534 A CN 114827534A CN 202210351280 A CN202210351280 A CN 202210351280A CN 114827534 A CN114827534 A CN 114827534A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/188—Capturing isolated or intermittent images triggered by the occurrence of a predetermined event, e.g. an object reaching a predetermined position
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40006—Architecture of a communication node
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40215—Controller Area Network CAN
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40267—Bus for use in transportation systems
- H04L2012/40273—Bus for use in transportation systems the transportation system being a vehicle
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Abstract
The application discloses a display method and a vehicle device of a vehicle detection image, wherein the display method comprises the following steps: the first processing chip detects an opening signal of the vehicle door through a sensor arranged on the vehicle door, the second processing chip responds to the first processing chip to acquire the opening signal, a display interface is initialized, and a display backlight corresponding to the display interface is in a closed state; and the second processing chip detects a starting signal of the vehicle and turns on a display backlight corresponding to the display interface. The application can realize the rapid display of the detection image.
Description
Technical Field
The invention relates to the field of vehicle machines, in particular to a display method of a vehicle detection image and a vehicle machine device.
Background
Along with the gradual electronic upgrading of the automobile, the vehicle-mounted system is more and more applied to the automobile, and the image detection function in the vehicle-mounted system can assist the driving of the automobile and improve the driving performance of the automobile.
The current vehicle-mounted system has long starting time, cannot immediately respond to the vehicle after the vehicle is started to realize auxiliary driving, and influences the driving safety.
Disclosure of Invention
The application provides a display method of a vehicle detection image and a vehicle device, and aims to solve the problem that driving is affected due to the fact that an image detection function in a vehicle-mounted system is started too slowly in the prior art.
In order to solve the above technical problem, the present application provides a method for displaying a vehicle detection image, including: the first processing chip detects an opening signal of the vehicle door through a sensor arranged on the vehicle door, the second processing chip responds to the first processing chip to acquire the opening signal, a display interface is initialized, and a display backlight corresponding to the display interface is in a closed state; and the second processing chip detects a starting signal of the vehicle and turns on a display backlight corresponding to the display interface.
The display method further comprises the following steps: and if the second processing chip does not detect the starting signal of the vehicle and the starting time of the vehicle-mounted system carried on the second processing chip exceeds a time threshold, closing the vehicle-mounted system.
The image detection program is a local application program in the vehicle-mounted system, and the method further comprises the following steps: the second processing chip responds to the opening signal and sequentially starts a system kernel, a surface flag service and an image detection program in the vehicle-mounted system.
Wherein, system kernel, surface flag service and image detection procedure among the on-vehicle system are opened in proper order, later include: the second processing chip detects an image acquisition signal of the vehicle and acquires image data through the camera interface; and sending the image data to a display interface.
The display method further comprises the following steps: the second processing chip detects the acquired image signal of the vehicle and initializes the camera interface.
The image detection program comprises a reversing detection program or an AVM program.
Wherein, first processing chip detects the opening signal of door through the sensor that sets up on the door, includes: the first processing chip detects an opening signal of the driver's door through a sensor arranged on the driver's door.
Wherein, system kernel, surface flag service and image detection procedure among the on-vehicle system are opened in proper order, later still include: the second processing chip starts other service programs in the vehicle-mounted system; loading a virtual machine; launch Launcher.
In order to solve the technical problem, the application provides a car machine device, which comprises a first processing chip, a second processing chip, a sensor arranged on a car door and a CAN bus, wherein the sensor and the first processing chip are connected to the CAN bus; the second processing chip is connected to the first processing chip, and the sensor is used for acquiring the opening signal through the sensor; the second processing chip is used for responding to the first processing chip to acquire the opening signal, initializing a display interface, and enabling display backlight corresponding to the display interface to be in a closed state; and detecting a starting signal of the vehicle, and turning on a display backlight corresponding to the display interface.
The first processing chip is an MCU chip, and the second processing chip is an SOC chip.
According to the display method of the vehicle detection image, when an opening signal of a vehicle door is detected, a display interface is initialized by responding to the opening signal, and at the moment, a display backlight corresponding to the display interface of an image detection program is in a closed state; and after the starting signal of the vehicle is detected, the display backlight corresponding to the display interface is turned on. When the vehicle door is opened in the application, a driver needs to enter the vehicle for starting the vehicle, and the display interface is initialized by utilizing the time, so that the image detection program can start to perform image detection and image display more quickly after the driver starts the vehicle. And the display backlight is not turned on before the driver starts the vehicle, that is, from the user experience, before the vehicle starts, the image detection program does not turn on the display, and after the vehicle starts, the display can be quickly performed, so that the user experience of assisting the driving is improved.
Drawings
The above and other objects, features and advantages of exemplary embodiments of the present disclosure will become readily apparent from the following detailed description read in conjunction with the accompanying drawings. Several embodiments of the present disclosure are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which like reference numerals refer to similar or corresponding parts and in which:
FIG. 1 is a schematic flowchart illustrating an embodiment of a method for displaying a vehicle inspection image according to the present application;
FIG. 2 is a flow chart of a system program in the embodiment of the display method shown in FIG. 1;
FIG. 3 is a schematic structural diagram of an embodiment of a vehicle-mounted device according to the present application;
FIG. 4 is a schematic structural diagram of an embodiment of a computer storage medium according to the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be further noted that, for the convenience of description, only some of the structures related to the present application are shown in the drawings, not all of the structures. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, fig. 1 is a schematic flow chart illustrating a method for displaying a vehicle inspection image according to a first embodiment of the present application.
The embodiment is used for realizing the rapid display of the vehicle detection image, and the vehicle detection image can be the detection image of the surrounding situation of the vehicle, is displayed and presented to the driver, and is convenient for realizing the auxiliary driving. And when the vehicle cold starts, when restarting completely promptly, the on-vehicle system in the vehicle need restart, and this process is consuming time longer, and wherein detect the image and also need longer time just can present the driver, can't in time assist the driver to carry out vehicle driving. For example, a reverse image needs to be immediately presented to a driver when the vehicle is started, so as to assist in achieving safe driving.
The method for displaying the vehicle detection image in the embodiment specifically includes the following steps.
S11: the first processing chip detects an opening signal of the vehicle door through a sensor arranged on the vehicle door, the second processing chip responds to the first processing chip to acquire the opening signal, the display interface is initialized, and the display backlight corresponding to the display interface is in a closed state.
The present embodiment is applied to the case of a cold start of the vehicle, that is, when the vehicle is restarted, the driver opens the door of the vehicle and then starts the vehicle in consideration of a specific vehicle use process. The present embodiment requires the display interface to be initialized in time when the vehicle is started. It will be appreciated that the second processing chip may need to initialize the boot program before initializing the display interface.
If the display interface is initialized after the vehicle is started, the display device cannot be opened in time, and the detection image cannot be displayed in time by using the image detection program. Therefore, in the embodiment, the display interface is initialized after the vehicle door is opened, and the work of initializing the boot program and the display interface is completed by using the time from the opening of the vehicle door to the sitting and starting of the vehicle, so that the detected image can be displayed in time when the vehicle is started.
In step S11, it is determined that the opening signal of the vehicle door is detected, the second processing chip initializes the display interface and controls the display backlight corresponding to the display interface to be in the off state, and the driver does not feel the start of the vehicle-mounted system.
Further, in response to the detection of the opening signal of the vehicle door, the second processing chip starts the image detection program, so that the time from the opening of the vehicle door to the sitting of the vehicle can be utilized to start the image detection program or some programs of the vehicle-mounted system, and the detected image can be displayed in time when the vehicle is started. The image detection program is a software program in the vehicle-mounted system, the vehicle-mounted system needs to be started in the starting process, namely, before the image detection program is started, some programs of the vehicle-mounted system such as a bootstrap program, a system kernel, a surface flag service and the like can be started, so that the bootstrap program and the system kernel can be started by using the time from the opening of a vehicle door to the sitting and starting of the vehicle; if the time from opening the door to sitting down to start the vehicle is long enough, the surface flag service and the image detection program can be started even by using the time from opening the door to sitting down to start the vehicle.
Preferably, the image detection program is a local application program in the vehicle-mounted system, and the image detection program can be started only after the startup of the surface flag is finished, so that the time from the power-on of the second processing chip to the start of the image detection program can be reduced by using the local application characteristic of the image detection program, and the time for starting the image detection program can be further reduced.
In addition, the first processing chip can control the second processing chip to be powered On (namely, the Power On second processing chip) in response to the fact that the sensor On the vehicle door detects the opening signal of the vehicle door, and the display interface can be automatically initialized when the second processing chip is powered On, so that the effect that the second processing chip initializes the display interface in response to the fact that the first processing chip detects the opening signal can be achieved. Further, the second processing chip is powered on, and then the image detection program and even some programs of the vehicle-mounted system which the image detection program depends on can be automatically started. Even after the second processing chip responds to the power-on starting of the image detection program, the remaining service programs in the vehicle-mounted system can be started. The first processing chip may supply power to the second processing chip by pulling up the GPIO, and it is understood that the first processing chip may also supply power to the second processing chip by other methods.
Further, in step S11, the door may be a driver 'S door, and the preceding step of starting the vehicle is to open the driver' S door. In the vehicle, the driving door can be linked with the vehicle, namely, the vehicle can be started after the driving door is opened.
S12: and the second processing chip detects a starting signal of the vehicle and turns on a display backlight corresponding to the display interface.
After the driver sits in the vehicle to start the vehicle, the second processing chip turns on the display backlight corresponding to the display interface, corresponding to S11, and if the display interface is initialized in S11, the display backlight may be directly turned on in this step S12. For example, the display backlight of the display screen connected to the display interface is turned on, and the display of the image detection program in the vehicle-mounted system can be seen on the display screen. For the driver, the image detection program can be used for assisting driving quickly.
The start signal in step S12 may be an ignition start in a fuel-oil vehicle or a key start in an electric vehicle. The key start requires a key driver (key driver), and the specific workflow of the key driver (key driver) is as follows: registering a key interrupt processing function; waiting for a key input event; judging whether the key is equal to ACC _ ON; if so, the turn-on signal is considered to be detected.
For the embodiment, the image detection program is started by the time from the opening of the vehicle door to the starting of the vehicle, so that the image detection program can quickly and timely start image detection and image display after the driver starts the vehicle.
In the actual use of the vehicle, the situation that a driver only takes things after opening the vehicle door and does not need to start the vehicle occurs, and the starting of the vehicle-mounted system causes resource waste. Therefore, the following steps are also included in this embodiment.
S13: and if the second processing chip does not detect the starting signal of the vehicle and the starting time of the vehicle-mounted system exceeds a time threshold, the vehicle-mounted system is closed.
After step S11, if the vehicle activation signal has not been detected, the in-vehicle system is turned off. The judgment process is judged according to the starting time of the vehicle-mounted system, specifically, if the starting time exceeds a time threshold, the driver is determined not to have the intention of starting the vehicle, and at the moment, the vehicle-mounted system needs to be closed, so that the waste of resources is reduced. The time threshold may be 1 minute to 10 minutes, specifically, 1 minute, 3 minutes, 5 minutes, 8 minutes, 10 minutes, or the like.
In this embodiment, after the image detection program in the vehicle-mounted system is started, the image detection program can be used to detect the image of the vehicle, and the detected image is presented to the driver in time. The image detection program may be a reverse detection program or an AVM (around view monitor, 360 degree panoramic image) program, and the present embodiment further includes the following steps.
S14: the second processing chip detects the image acquisition signal of the vehicle and acquires image data through the camera interface.
After detecting the acquired image signal of the vehicle, the image detection program may trigger the image pickup interface, for example, initialize the image pickup interface so that it can transmit the image data, i.e., the image data can be acquired by using the image pickup interface. The camera interface is used for connecting with an external camera device, and the camera device can be used for shooting and detecting the vehicle and the surrounding environment thereof, so that the image data can be obtained.
For example, after a reverse signal of the vehicle is detected, the reverse detection program triggers the camera interface to acquire the reverse image data through the camera interface.
S15: the second processing chip sends the image data to the display interface.
And finally, sending the acquired image data to a display interface to realize display.
Based on the method of the embodiment, the reversing image data can be displayed timely when the vehicle is started, so that the intelligent driving of a driver is facilitated.
The vehicle-mounted system of the embodiment may be an Android system, a Linux system, and the like. For example, the Android system is used, and the image detection program is a local application program (native program) in the vehicle-mounted system, that is, the image detection program can be preferentially started in the process of starting the vehicle-mounted system.
The total on-board system is fully on for 10s, the on-board system is started for 5s to the surface flinger service, and generally, the time from opening the door to starting the vehicle is 3s for the driver. Therefore, for the application, the image detection program is a local application program and can be started after the SurfaceFlinger service is started, and at the moment, the driver only needs to wait for 2 s; if the image detection program is not a local application, the driver needs to wait 7 seconds. Both cases are reduced compared to waiting 10 s.
Based on the above description, for the Android on-board system, specific steps of the display method of the vehicle detection image are shown in fig. 2, and fig. 2 is a schematic flow chart of a system program in the embodiment of the display method shown in fig. 1.
After detecting the opening signal of the vehicle door, the working flow of the second processing chip is as follows.
S21: BootLoader is started.
S22: and initializing a display interface and closing the display backlight.
S23: the system kernel is started.
S24: the surfaceflag service is started.
S25: and starting an image detection program.
S26: other service programs are started.
S27: and loading the virtual machine.
S28: launch Launcher.
If the image detection process is the reverse detection process, the process steps after the image detection process is started in step S25 are as follows.
S31: and detecting a reverse signal.
S32: and initializing the camera interface.
S33: and acquiring image data output by the camera equipment.
S34: and sending the image data to a display interface.
In the process of S21-S28, a vehicle start signal may be detected, for example, by pressing a button, and the steps of the process are as follows.
S41: the key driver is started.
S42: the registration key is interrupted.
S43: and waiting for the key.
S44: if key is ACC _ ON, the backlight is turned ON.
The display method is particularly applied to a vehicle-mounted device, and the hardware configuration of the vehicle-mounted device comprises a first processing chip, a second processing chip, a sensor arranged on a vehicle door and a CAN bus. The first processing chip and the sensor are connected to the CAN bus, and data transmission is carried out through the CAN bus. The second processing chip is connected to the first processing chip.
The sensor is used for detecting an opening signal of the vehicle door; and notifying the first processing chip in response to detecting the opening signal of the vehicle door. The second processing chip is used for initializing the display interface in response to the first processing chip acquiring the opening signal, and then implementing the specific steps in the method.
With reference to fig. 3, the vehicle device may specifically refer to fig. 3, and fig. 3 is a schematic structural diagram of an embodiment of the vehicle device of the present application. The car-mounted device 100 of the embodiment comprises a sensor 11, an MCU (micro controller unit) 12 and an SOC chip 13, wherein the sensor 11 and the MCU12 are connected to a CAN bus 14, and the SOC chip 13 is connected to an MCU 12.
That is, the first processing chip is the MCU12, and the second processing chip is the SOC chip 13.
The sensor 11 in this embodiment is provided in the driver's door for sensing the opening of the door to generate an opening signal and broadcasting the opening signal on the CAN bus 14. The standby current of the MCU12 is small, the power consumption is low, the power supply is used for managing the power supply of the vehicle-mounted system, and the MCU12 controls the SOC chip to be powered on in a GPIO (general purpose input/output) pulling-up mode after receiving the opening signal. The SOC chip is provided with a vehicle-mounted system, and the vehicle-mounted system is started after being electrified, so that the steps in the method are realized.
The logic processes of the display method are specifically represented by a computer program, and when the computer program is implemented in a software form and sold or used as a stand-alone product, the logic processes can be stored in a storage medium readable by an electronic device. Referring to fig. 4, fig. 4 is a schematic structural diagram of a computer storage medium 200 according to an embodiment of the present invention, in which a computer program can be executed to implement the method of the above embodiment.
The computer storage medium 200 of this embodiment may be a medium that can store program instructions, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk, or may also be a server that stores the program instructions, and the server may send the stored program instructions to other devices for operation, or may self-operate the stored program instructions.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A display method of a vehicle detection image is characterized by comprising the following steps:
the first processing chip detects an opening signal of the vehicle door through a sensor arranged on the vehicle door;
the second processing chip responds to the first processing chip to acquire the opening signal, a display interface is initialized, and display backlight corresponding to the display interface is in a closed state;
and the second processing chip detects a starting signal of the vehicle and turns on the display backlight corresponding to the display interface.
2. The display method according to claim 1, further comprising:
and if the second processing chip does not detect the starting signal of the vehicle and the starting time of the vehicle-mounted system carried on the second processing chip exceeds a time threshold, closing the vehicle-mounted system.
3. The display method according to claim 1, wherein the image detection program is a local application program in a vehicle-mounted system, and the method further comprises:
and the second processing chip responds to the opening signal and sequentially starts a bootstrap program, a system kernel, a surface flag service and an image detection program.
4. The method as claimed in claim 3, wherein the sequentially starting a bootstrap program, a system kernel, a surface flag service and an image detection program, then comprises:
the second processing chip detects an image acquisition signal of the vehicle and acquires image data through the camera interface;
and the second processing chip sends the image data to the display interface.
5. The display method according to claim 4, further comprising:
the second processing chip detects an image acquisition signal of the vehicle and initializes the camera interface.
6. The display method according to claim 3, wherein the image detection program is a reverse detection program or an AVM program.
7. The display method according to claim 1, wherein the first processing chip detects an opening signal of a vehicle door through a sensor provided on the vehicle door, and includes:
the first processing chip detects an opening signal of the driving door through a sensor arranged on the driving door.
8. The method as claimed in claim 3, wherein the sequentially starting of the bootstrap program, the system kernel, the surface flag service, and the image detection program further comprises:
the second processing chip starts other service programs in the vehicle-mounted system;
the second processing chip loads a virtual machine;
and the second processing chip starts a Launcher.
9. The vehicle device is characterized by comprising a first processing chip, a second processing chip, a sensor arranged on a vehicle door and a CAN bus, wherein the sensor and the first processing chip are connected to the CAN bus, and the second processing chip is connected to the first processing chip;
the sensor is used for detecting an opening signal of the vehicle door;
the first processing chip is used for acquiring the opening signal through the sensor;
the second processing chip is used for responding to the first processing chip to acquire the opening signal, initializing a display interface, and enabling display backlight corresponding to the display interface to be in a closed state; and detecting a starting signal of the vehicle, and turning on a display backlight corresponding to the display interface.
10. The in-vehicle device according to claim 9, wherein the first processing chip is an MCU chip, and the second processing chip is an SOC chip.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210351280.5A CN114827534A (en) | 2022-04-02 | 2022-04-02 | Display method of vehicle detection image and vehicle-mounted device |
| PCT/CN2022/143507 WO2023185168A1 (en) | 2022-04-02 | 2022-12-29 | Display method for vehicle detection image, and in-car entertainment apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210351280.5A CN114827534A (en) | 2022-04-02 | 2022-04-02 | Display method of vehicle detection image and vehicle-mounted device |
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| CN114827534A true CN114827534A (en) | 2022-07-29 |
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| WO (1) | WO2023185168A1 (en) |
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|---|---|---|---|---|
| WO2023185168A1 (en) * | 2022-04-02 | 2023-10-05 | 合肥杰发科技有限公司 | Display method for vehicle detection image, and in-car entertainment apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103522949B (en) * | 2012-12-21 | 2016-04-13 | Tcl康钛汽车信息服务（深圳）有限公司 | A kind of method of quick display reverse image and car machine system |
| CN103150178A (en) * | 2013-02-05 | 2013-06-12 | 联发科技（新加坡）私人有限公司 | Starting-up display control device and processor chip |
| CN105657369B (en) * | 2016-01-08 | 2018-10-12 | 福州瑞芯微电子股份有限公司 | The video frequency monitoring method and system of quick response based on linux system |
| JP6764354B2 (en) * | 2017-02-10 | 2020-09-30 | クラリオン株式会社 | On-board unit, application control method and camera image display method |
| CN110239537A (en) * | 2019-06-19 | 2019-09-17 | 北京茵沃汽车科技有限公司 | A kind of active safety system of vehicle |
| CN113071511A (en) * | 2021-04-21 | 2021-07-06 | 中国第一汽车股份有限公司 | Method and device for displaying reverse image, electronic equipment and storage medium |
| CN114827534A (en) * | 2022-04-02 | 2022-07-29 | 合肥杰发科技有限公司 | Display method of vehicle detection image and vehicle-mounted device |
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| WO2023185168A1 (en) * | 2022-04-02 | 2023-10-05 | 合肥杰发科技有限公司 | Display method for vehicle detection image, and in-car entertainment apparatus |
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