CN114546318B - Vehicle instrument information display method and device, electronic equipment and storage medium - Google Patents

Vehicle instrument information display method and device, electronic equipment and storage medium Download PDF

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Publication number
CN114546318B
CN114546318B CN202210193396.0A CN202210193396A CN114546318B CN 114546318 B CN114546318 B CN 114546318B CN 202210193396 A CN202210193396 A CN 202210193396A CN 114546318 B CN114546318 B CN 114546318B
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vehicle
information
display
display image
processor
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CN114546318A (en
Inventor
喻明富
王康
蔡海军
冯军伟
王彪
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Ecarx Hubei Tech Co Ltd
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Ecarx Hubei Tech Co Ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/1407—General aspects irrespective of display type, e.g. determination of decimal point position, display with fixed or driving decimal point, suppression of non-significant zeros
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Arrangement of adaptations of instruments
    • B60K35/28—
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/08—Error detection or correction by redundancy in data representation, e.g. by using checking codes
    • G06F11/10—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
    • G06F11/1004—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's to protect a block of data words, e.g. CRC or checksum
    • B60K2360/166—
    • B60K2360/167—
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/84—Data processing systems or methods, management, administration

Abstract

The embodiment of the application provides a vehicle instrument information display method, a device, electronic equipment and a storage medium, wherein the method can be applied to a first processor, and vehicle original information sent by a microcontroller is acquired through a vehicle entertainment operation system running on the first processor; processing the original information of the vehicle to obtain the instrument information of the vehicle; obtaining a display image according to the currently set display mode and the vehicle instrument information; and sending the display image to the second processor, wherein the display image is used for indicating the second processor to check the display image, and displaying the display image according to the currently set display mode after the check is successful. According to the technical scheme provided by the embodiment of the application, the entertainment function and the instrument function are realized through the vehicle entertainment operation system, the difficulty and the complexity of system development are reduced, and the user experience is effectively improved.

Description

Vehicle instrument information display method and device, electronic equipment and storage medium
Technical Field
The present application relates to the field of vehicle information display technologies, and in particular, to a vehicle instrument information display method, device, electronic apparatus, and storage medium.
Background
During the running of the vehicle, the driver needs to know the running information of the vehicle, such as fuel amount, vehicle speed, running mileage and the like, at any time, so as to adjust the running state of the vehicle. The instrument information of the vehicle is displayed by using the mechanical instrument, but the mechanical instrument has limited display capability, and some other information other than the instrument information, such as navigation information, etc., cannot be displayed. In addition, the display accuracy of the mechanical meter is poor, and the intuitiveness of the displayed content is poor.
Currently, a dual operating system scheme may be used to enable the display of instrument information and entertainment information for a vehicle. The instrument function is realized through one operating system, instrument information is displayed, the entertainment function is realized through the other operating system, and entertainment information is displayed.
However, the method for displaying the instrument information and the entertainment information by the two operating systems has higher complexity and great development difficulty. In addition, the memory occupied by the two operating systems is larger, which may result in slower operating system opening or running speed, thereby reducing user experience.
Disclosure of Invention
The embodiment of the application provides a vehicle instrument information display method, a device, electronic equipment and a storage medium, which realize the display of vehicle instrument information through a vehicle entertainment operation system and effectively reduce the complexity and development difficulty of the operation system.
In a first aspect, an embodiment of the present application provides a vehicle instrument information display method, which is applied to a first processor, and includes:
acquiring original information of a vehicle of the microcontroller through running on a first processor;
processing the original information of the vehicle to obtain vehicle instrument information;
obtaining a display image according to the currently set display mode and the vehicle instrument information;
and sending the display image to a second processor, wherein the display image is used for indicating the second processor to check the display image, and displaying the display image according to a currently set display mode after the check is successful.
Optionally, the processing the original information of the vehicle to obtain vehicle instrument information includes:
adding the original information of the vehicle to an original information database through a first thread;
acquiring original information of the vehicle stored in an original information database through a second thread, and dividing the original information of the vehicle into at least two preset data packets;
and processing the original information of the vehicle in the at least two data packets according to the priority and the data processing period corresponding to each data packet to obtain the vehicle instrument information.
Optionally, the processing the vehicle original information in the at least two data packets according to the priority and the data processing period corresponding to each data packet to obtain vehicle instrument information includes:
according to the sequence from high priority to low priority and the data processing period corresponding to each data packet, carrying out validity check on the original information of the vehicle in each data packet, and removing the invalid original information of the vehicle;
and converting or calculating the vehicle original information remained after the invalid vehicle original information is removed from each data packet to obtain the vehicle instrument information.
Optionally, after obtaining the vehicle meter information, the method includes:
and sending the vehicle instrument information to a nonvolatile memory for storage.
Optionally, the obtaining a display image according to the currently set display mode and the vehicle instrument information includes:
if the currently set display mode is the first display mode, obtaining a full-screen display image corresponding to the vehicle instrument information according to the vehicle instrument information;
if the currently set display mode is a second display mode, a first combined display image is obtained according to the vehicle instrument information and the entertainment information, a first display area in the first combined display image is an instrument display image corresponding to the vehicle instrument information, a second display area is an entertainment display image corresponding to the entertainment information, and the first display area is smaller than the second display area;
And if the currently set display mode is a third display mode, obtaining a second combined display image according to the vehicle instrument information and the entertainment display information, wherein a third display area in the second combined display image is an instrument display image corresponding to the vehicle instrument information, a fourth display area is an entertainment display image corresponding to the entertainment information, and the first display area is equal to the second display area.
Optionally, the method further comprises:
if the running speed of the vehicle is detected to be less than or equal to the preset speed, switching the current display mode to the target display mode according to a first instruction input by a user for switching to the target display mode;
when the current display mode is the second display mode or the third display mode, if the running speed of the vehicle is detected to be greater than the preset speed and the current running application program is not the preset application program, switching the display mode to the third display mode;
and when the current display mode is the third display mode, if the running speed of the vehicle is detected to be greater than the preset speed and the currently running application program is the preset application program, switching the display mode to the second display mode.
In a second aspect, an embodiment of the present application provides a vehicle meter information display method, applied to a second processor, where the vehicle meter information display method includes:
receiving a display image sent by a first processor and a currently set display mode sent by a microcontroller, wherein the display image comprises an instrument display image corresponding to instrument display information of a vehicle;
acquiring an instrument display image in a current display area according to the current display area of the instrument display image corresponding to the display mode, performing CRC (cyclic redundancy check) on the instrument display image, and performing RGB (red, green and blue) on a display icon in the instrument display image;
and when the CRC check and the RGB check are successful, sending check success information to the microcontroller, wherein the check success information is used for indicating the microcontroller to control the display image to be displayed according to the currently set display mode.
Optionally, the performing CRC check on the meter display image and performing RGB check on a display icon in the meter display image includes:
performing CRC (cyclic redundancy check) on the instrument display image to obtain a CRC result, and performing CRC on a plurality of continuous display frames of the instrument display image to obtain a CRC state of each display frame;
If the CRC check result is consistent with the preset CRC check result and the CRC check states of at least two display frames are inconsistent, determining that the CRC check is successful;
performing RGB data calculation on the display icons in the instrument display image to obtain a calculation result;
and if the calculation result is within the preset range, determining that RGB verification is successful.
Optionally, the method further comprises:
if the CRC fails, a first check failure message is sent to the microcontroller;
if the RGB verification fails, sending second verification failure information to the microcontroller;
and if the CRC check and the RGB check fail, sending third check failure information to the microcontroller.
In a third aspect, an embodiment of the present application provides a vehicle instrument information display method, applied to a microcontroller, where the vehicle instrument information display method includes:
collecting original information of a vehicle;
the vehicle original information is sent to a first processor, and the vehicle original information is used for indicating the first processor to process the vehicle original information to obtain a display image, and the second processor of the vehicle is used for checking the display image;
And when the verification success information sent by the second processor is received, controlling the display image to be displayed according to the currently set display mode.
Optionally, the method further comprises:
after the microcontroller is started and before the vehicle entertainment operating system is started, the instrument display image and the starting image corresponding to the vehicle instrument information stored in the nonvolatile memory are displayed through the screen display technology.
Optionally, the method further comprises:
receiving verification failure information sent by the second processor;
if the verification failure information is the second verification failure information, acquiring a display icon pre-stored in a nonvolatile memory, and updating the display icon in the display image which fails to verify by using the pre-stored display icon;
and if the verification failure information is first verification failure information or third verification failure information, sending the first verification failure information or the third verification failure information to the first processor, wherein the first verification failure information or the third verification failure information is used for indicating the first processor to send a new display image to the second processor.
Optionally, the method further comprises:
detecting an operational state of a vehicle entertainment operating system running on the first processor through heartbeat communication between the microcontroller and the first processor;
if the running state of the vehicle entertainment operation system is detected to be an abnormal state, acquiring display information corresponding to the original information of the vehicle in a nonvolatile memory according to the acquired original information of the vehicle;
generating a substitute instrument display image corresponding to the vehicle instrument information according to the original information and the display information of the vehicle through a screen display technology;
and updating the currently displayed meter display image according to the alternative meter display image.
In a fourth aspect, an embodiment of the present application provides a vehicle meter information display device including:
the acquisition module is used for acquiring the original information of the vehicle sent by the microcontroller through a vehicle entertainment operation system running on the first processor;
the processing module is used for processing the original information of the vehicle to obtain vehicle instrument information;
the processing module is further used for obtaining a display image according to the currently set display mode and the vehicle instrument information;
The image sending module is used for sending the display image to the second processor, and the display image is used for indicating the second processor to check the display image and displaying the display image according to the currently set display mode after the check is successful.
In a fifth aspect, an embodiment of the present application provides a vehicle meter information display device including:
the receiving module is used for receiving a display image sent by the first processor and a currently set display mode sent by the microcontroller, wherein the display image comprises an instrument display image corresponding to instrument display information of the vehicle;
the verification module is used for acquiring the instrument display image in the current display area according to the current display area of the instrument display image corresponding to the display mode, performing CRC (cyclic redundancy check) on the instrument display image, and performing RGB (red, green and blue) verification on the display icon in the instrument display image;
and the information sending module is used for sending verification success information to the microcontroller when the CRC and RGB verification are successful, and the verification success information is used for indicating the microcontroller to control the display image to be displayed according to the currently set display mode.
In a sixth aspect, an embodiment of the present application provides a vehicle meter information display device including:
the acquisition module is used for acquiring vehicle original information of the vehicle;
the information synchronization module is used for sending the original vehicle information to the first processor, and the original vehicle information is used for indicating the first processor to process the original vehicle information to obtain a display image and checking the display image through the second processor;
and the control module is used for controlling the display image to be displayed according to the currently set display mode when receiving the verification success information sent by the second processor.
In a seventh aspect, an embodiment of the present application further provides an electronic device, including: a first processor, a microcontroller communicatively coupled to the first processor, and a second processor communicatively coupled to the first processor and the microcontroller;
the first processor executes computer-executable instructions stored by the first processor to implement the method described in any one of the possible implementations of the first aspect;
the second processor executing computer-executable instructions stored by the second processor to implement the method described in any one of the possible implementations of the second aspect;
The microcontroller executes computer-executable instructions stored by the microcontroller to implement the method as described in any one of the possible implementations of the third aspect.
The processor executes computer-executable instructions stored in the memory to implement the method as described in any one of the possible implementations of the first aspect or the second aspect or the third aspect.
In an eighth aspect, an embodiment of the present application further provides a computer readable storage medium, where computer executable instructions are stored, when executed by a processor, to implement the method described in any one of the possible implementation manners of the first aspect, the second aspect, or the third aspect.
In a ninth aspect, embodiments of the present application further provide a computer program product comprising a computer program which, when executed by a processor, implements a method as described in any one of the possible implementations of the first aspect or the second aspect or the third aspect.
Therefore, the embodiment of the application provides a vehicle instrument information display method, a device, electronic equipment and a storage medium, wherein the method can be applied to a first processor, and vehicle original information sent by a microcontroller is acquired through a vehicle entertainment operation system running on the first processor; processing the original information of the vehicle to obtain the instrument information of the vehicle; obtaining a display image according to the currently set display mode and the vehicle instrument information; and sending the display image to the second processor, wherein the display image is used for indicating the second processor to check the display image, and displaying the display image according to the currently set display mode after the check is successful. According to the technical scheme provided by the embodiment of the application, the display image corresponding to the vehicle instrument information is obtained through the vehicle entertainment operation system running on the first processor, and when the second processor is successfully checked, the display image is displayed on the display screen of the vehicle, so that the entertainment function and the instrument function can be realized only by using the entertainment operation system, the problem of slow starting or running of the operation system caused by using two operation systems to realize the two functions is avoided, the difficulty and complexity of system development can be reduced, and the user experience is effectively improved.
Drawings
Fig. 1 is a schematic structural diagram of a vehicle instrument information display method according to an embodiment of the present application;
fig. 2 is a schematic flow chart of a vehicle instrument information display method applied to a first processor of a vehicle according to an embodiment of the present application;
fig. 3 is a schematic flow chart of a vehicle instrument information display method applied to a second processor according to an embodiment of the present application;
fig. 4 is a schematic flow chart of a vehicle instrument information display method applied to a microcontroller according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a vehicle instrument information display device according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of another vehicle instrument information display device according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a further vehicle instrument information display device according to an embodiment of the present application.
Specific embodiments of the present disclosure have been shown by way of the above drawings and will be described in more detail below. These drawings and the written description are not intended to limit the scope of the disclosed concepts in any way, but rather to illustrate the disclosed concepts to those skilled in the art by reference to specific embodiments.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the accompanying claims.
In embodiments of the present application, "at least one" means one or more, and "a plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: there are three cases, a alone, a and B together, and B alone, wherein a, B may be singular or plural. In the text description of the present application, the character "/" generally indicates that the front-rear associated object is an or relationship.
The technical scheme provided by the embodiment of the application can be applied to a scene of vehicle information display. When the display screen on the vehicle displays the vehicle information, the vehicle information to be displayed comprises entertainment information and vehicle instrument information so as to meet the requirements of users.
However, the display of vehicle instrument information is mainly performed by a mechanical instrument, and for example, a small-sized vehicle such as a motorcycle cannot display entertainment information. Therefore, it is possible to make the two electronic control units realize the entertainment function and the meter function, respectively, by providing the two electronic control units ECU in the vehicle. However, the cost of two ECUs is high. In order to reduce the cost of the whole vehicle, the instrument function and the entertainment function can be integrated in one ECU, the cost of the whole vehicle ECU is reduced, a dual-system method is used, one operating system realizes the instrument function, and the other operating system realizes the entertainment function, so that the instrument function and the entertainment host function are realized in a single ECU at the same time.
However, the two operating systems have higher requirements on the storage space and higher development difficulty, and in the use process, the problem of slow starting or running of the operating systems may be caused, so that the user experience is reduced.
In order to solve the problems that the operation system runs slowly and the user experience is poor due to the fact that the two operation systems are used for realizing the entertainment function and the instrument function, one operation, namely the entertainment operation system, can be run in a first processor of a vehicle, the function of processing vehicle information to generate vehicle instrument information is realized through the operation system, the entertainment function and the instrument function can be realized through only one operation system, namely images corresponding to the instrument information of the vehicle are displayed on a display screen of the vehicle, development difficulty and complexity can be greatly reduced, and the user experience is effectively improved.
Fig. 1 is a schematic structural diagram of a vehicle instrument information display method according to an embodiment of the present application. According to fig. 1, the vehicle instrument information display method may be implemented by the microcontroller 10, the first processor 20, the second processor 30, the display screen 40, and the nonvolatile memory 08. The entertainment operation system 21 may be executed in the first processor 20, and the entertainment operation system 21 includes an instrument function module 01, a voice control module 02, an entertainment function module 03, an instrument service module 04, a health monitoring module 05, and a vehicle signal hardware abstraction module 06. The microcontroller may be a microcontroller (Microcontroller Unit, abbreviated as MCU). The first processor 20 may be a microprocessor MPU, the meter Service module 04 in the entertainment operating system 21 running on the microprocessor may be a dimsparvice, the health detection module may be health_monitor_service, and the vehicle signal hardware abstraction module 06 may be a vehicle hal.
For example, the microcontroller 10, the first processor 20, and the second processor 30 may be provided independently, or may be integrated on the same motherboard, which is not limited in any way in the embodiment of the present application.
For example, the microcontroller 10 may acquire original information of the vehicle, such as information of a vehicle speed, a rotation speed, an oil level, a gear, a turn signal, a steering wheel key, an oil pressure, etc., through a bus connected to the vehicle body, and transmit the acquired original information of the vehicle to the first processor 20 after simple calculation processing. In addition, the microcontroller 10 may initialize the second processor 30, monitor the display status of the vehicle meter information returned by the second processor 30, and timely control the second processor 30 to display correct contents if a problem of abnormal display occurs.
For example, the first processor 20 may also be a CPU with a stronger performance, and may run the entertainment operating system 21, where the entertainment operating system 21 may be an Android system or other operating systems, and the embodiment of the present application does not limit the entertainment operating system 21. The first processor 20 communicates with the microcontroller 10, and can acquire vehicle information sent by the microcontroller 10, implement meter functions based on the meter function module 01 in the entertainment operation system 21, and implement voice recognition and control functions based on the voice control module 02. Other entertainment functions required by the user, such as a navigation function, a music function, etc., are implemented based on the entertainment function module 03. In addition, the meter function module 01 may display the vehicle meter information in different display areas according to an appropriate application scenario for different scenarios.
For example, the second processor 30 may drive the display area to display, and check the display content, and if a display abnormality or error occurs, it may be able to send information to the microcontroller 10 in time to inform the microcontroller 10 of the check and display condition. It will be appreciated that the second processor 30 has an on-screen display (On Screen Display, abbreviated as OSD) function, and can directly send the content to be displayed to the display area for display. The second processor 30 may check the display content by a CRC check and an RGB check.
In one possible implementation, if the second processor 30 detects a display abnormality, the information of the display abnormality is sent to the microcontroller 10, and the microcontroller 10 sends the information of the display abnormality to the first processor 20, so that the instrument function module 01 in the entertainment operation system 21 obtains the information of the display abnormality. So that the meter function module 01 redraws the display area of the vehicle meter information.
For example, the nonvolatile memory 08 may be a FLASH memory, and may be used to store picture resources and startup animation related to vehicle meter information, so that when the display of the picture in the vehicle meter information is abnormal, the picture stored in the nonvolatile memory 08 may be updated to ensure the correctness of the display of the vehicle meter information. The display area may be a display screen mounted on the vehicle, and different contents may be displayed according to the user's needs.
For example, the first processor 20 may further include a network module (not shown in fig. 1) that may not provide network services to the entertainment operating system 21 to enable normal display of entertainment information. In addition, the network module can also periodically report the vehicle body data to the cloud end, so that when the instrument function module 01 has a problem, the network module can report the problem information to the cloud end, so that technicians can analyze the problem information, and the system is maintained.
Therefore, the embodiment of the application can realize the display of the vehicle instrument information and the entertainment information through the entertainment operation system 21 by the structure shown in the figure 1, saves the storage space, effectively reduces the development difficulty and the complexity of the system, and greatly improves the user experience.
According to the above-mentioned fig. 1, the technical solution provided by the embodiment of the present application is mainly implemented by a microcontroller, a first processor, a second processor and a display screen. The method for displaying the vehicle instrument information provided by the application will be described in detail from three aspects of the microcontroller, the first processor and the second processor by specific embodiments. It is to be understood that the following embodiments may be combined with each other and that some embodiments may not be repeated for the same or similar concepts or processes.
Fig. 2 is a flowchart of a vehicle instrument information display method applied to a first processor according to an embodiment of the present application. The vehicle meter information display method applied to the first processor may be performed by software and/or hardware means, for example, the hardware means may be a vehicle meter information display means, which may be the first processor in the vehicle. For example, referring to fig. 2, the vehicle meter information display method may include:
S201, acquiring original information of the vehicle sent by the microcontroller through a vehicle entertainment operation system running on the first processor.
For example, the microcontroller may collect the original information of the vehicle in real time, and send the collected original information of the vehicle to the first processor, so that the instrument service module in the entertainment operation system can obtain the original information of the vehicle.
By way of example, the meter function module may collect and process the running of the entertainment operating system through the health_check thread provided by the health detection module. Specifically, the health_check thread can be used for carrying out heartbeat packet communication with the microcontroller, namely, the vehicle entertainment operation system and the microcontroller complete two-way ACK handshake once every 500ms, if the microcontroller finds that the continuous 5S vehicle entertainment operation system has no ACK feedback, the vehicle entertainment operation system is considered to be abnormal, and the microcontroller resets the vehicle entertainment operation system; the microcontroller controls the second processor to update the display content through the OSD technology. In addition, when the health_check thread detects that the system memory space is lower than the critical value, the killgroundprocesses function interface is called to delete the background process, and enough space (such as 350M) is released to ensure smooth operation of the instrument function. The threshold may be set according to a storage space of the system, which is not limited in the embodiment of the present application.
S202, processing original information of the vehicle to obtain vehicle instrument information.
For example, when the original information of the vehicle is processed to obtain the instrument information of the vehicle, the original information of the vehicle can be added into an original information database through a first thread; acquiring original information of the vehicle stored in an original information database through a second thread, and dividing the original information of the vehicle into at least two preset data packets; and processing the original information of the vehicle in at least two data packets according to the priority and the data processing period corresponding to each data packet to obtain the vehicle instrument information.
For example, the first Thread may be dim_recv_thread_run, the original information of the vehicle may be added to the original information database dataqueue, and the second Thread may be dim_process_thread_run, capable of processing data in the original information database dataqueue. The embodiments of the present application are described by way of example only, but are not limited thereto.
For example, the priority and the data processing period corresponding to the data packet may be set according to the type of the data, which is not limited in the embodiment of the present application.
In the embodiment of the application, the vehicle original information is added through the first thread, and the added vehicle original information is processed through the second thread, so that the conflict of processing the data packets with different priorities can be avoided, and the processing efficiency of the vehicle original information can be effectively improved.
For example, when the vehicle original information in at least two data packets is processed according to the priority and the data processing period corresponding to each data packet to obtain the vehicle instrument information, the validity of the vehicle original information in each data packet can be checked according to the order from high priority to low priority and the data processing period corresponding to each data packet to remove invalid vehicle original information; and converting or calculating the vehicle original information remained after the invalid vehicle original information is removed from each data packet to obtain the vehicle instrument information.
For example, corresponding conversion and calculation can be performed according to different data types, and part of data in original information of the vehicle needs to be displayed after simple conversion and part of data needs to be displayed after accurate calculation. For example, the mileage of the vehicle needs to be calculated by integrating the speed in the original information of the vehicle to obtain the mileage of the vehicle, and the display accuracy of the mileage can be 1km and can be valued downwards during the integral calculation. The embodiment of the application is not particularly limited to a specific conversion and calculation mode.
In the embodiment of the application, the vehicle instrument information is obtained by removing invalid data in the original vehicle information and performing conversion processing or calculation processing on the rest of the original vehicle information, so that the displayed vehicle instrument information accords with the regulation of data display, is convenient for a user to check, and can effectively promote user experience.
It will be appreciated that after the vehicle meter information is obtained, the vehicle meter information may also be sent to a non-volatile memory for storage. Because the original information of the vehicle is real-time information of the vehicle, the vehicle instrument information is stored in the nonvolatile memory each time the vehicle instrument information is obtained, in order to ensure the storage space of the nonvolatile memory, after the vehicle instrument information stored in the nonvolatile memory is normally displayed on a display screen of the vehicle, the vehicle instrument information corresponding to the displayed information can be deleted in the nonvolatile memory, so that the storage space of the nonvolatile memory is ensured.
For example, when original information of a vehicle is stored in the nonvolatile memory, the nonvolatile memory can be divided into two areas, each area is divided into different fields, each field can store different data, when the data is written into the ID1 of the nonvolatile memory area 1, the ID1 data of the nonvolatile memory area 1 and the ID1 data of the nonvolatile memory area 2 are read out for comparison, and if the ID1 values are the same, the nonvolatile memory area 1 and the nonvolatile memory area 2 respectively write new data; if the values of ID1 are not the same, it is necessary to calculate CRC for both areas, take the correct value for CRC, and update the area of the wrong pair to be correct. The embodiments of the present application are described by taking the above storage modes as examples, but the embodiments of the present application are not limited thereto.
For example, the contents of nonvolatile storage area 1 and nonvolatile storage area 2 may be found in table 1 below:
TABLE 1
As shown in table 1, the nonvolatile memory area 1 and the nonvolatile memory area 2 each include 4 different fields of ID1, ID2, ID3, and ID4 for storing different data, respectively. Wherein, ID1 is used for storing the Odometer data, ID2 is used for storing the Trip1_Odometer data, ID3 is used for storing the Trip2_Odometer data, and ID4 is used for storing the xxx data. The examples of the present application are described by way of example only, but are not intended to be limiting.
In the embodiment of the application, the vehicle instrument information is stored in the nonvolatile memory, so that when the display of the vehicle instrument information is abnormal, the original information of the vehicle stored in the nonvolatile memory can be used for updating, and the loss of the vehicle instrument information is avoided.
S203, obtaining a display image according to the currently set display mode and the vehicle instrument information.
By way of example, the display modes of the vehicle instrument information provided by the embodiment of the application include a first display mode, a second display mode and a third display mode. The first display mode is used for indicating that the vehicle instrument information is displayed in a full screen on a display screen of the vehicle; the second display mode is used for indicating to display vehicle instrument information in a first display area of a display screen of the vehicle, and displaying entertainment information in a second display area of the display screen of the vehicle, wherein the first display area is smaller than the second display area. The third display mode is used for indicating to display entertainment information in a third display area of a display screen of the vehicle, displaying vehicle instrument information in a fourth display area of the display screen of the vehicle, and enabling the third display area to be equal to the fourth display area.
It is to be understood that the size of the first area and the size of the second area in the second display mode, and the size of the third area and the size of the fourth area in the third display mode may be set according to actual situations such as the size of the display screen of the vehicle or the number of vehicle meter information, and the embodiment of the present application does not limit any specific size.
When a display image is obtained according to the currently set display mode and the vehicle instrument information, the currently set display mode is different, and the obtained display image is also different. For example, if the currently set display mode is the first display mode, a full-screen display image corresponding to the vehicle meter information is obtained according to the vehicle meter information. If the currently set display mode is the second display mode, a first combined display image is obtained according to the vehicle instrument information and the entertainment information, a first display area in the first combined display image is an instrument display image corresponding to the vehicle instrument information, a second display area is an entertainment display image corresponding to the entertainment information, and the first display area is smaller than the second display area. If the currently set display mode is the third display mode, a second combined display image is obtained according to the vehicle instrument information and the entertainment display information, a third display area in the second combined display image is an instrument display image corresponding to the vehicle instrument information, a fourth display area is an entertainment display image corresponding to the entertainment information, and the first display area is equal to the second display area.
By way of example, the entertainment display image may be a navigation image, or a music image, or an image of other entertainment applications, as embodiments of the application are not limited in this respect.
It will be appreciated that since the second display area for displaying the entertainment image in the second display mode is larger than the first display area for displaying the meter display image, only the more important meter information of the vehicle, such as vehicle speed, oil amount, turn signal, etc., may be displayed in order to ensure a clear display of the meter information of the vehicle. The content displayed in the first display area is not particularly limited in the embodiment of the application.
In the embodiment of the application, the vehicle instrument information is displayed in different display areas according to different display modes, and the vehicle instrument information can be displayed no matter what display mode is, so that a driver can know the running information of the vehicle in time, and the safety of the driver in the process of driving the vehicle can be effectively improved.
S204, sending the display image to the second processor, wherein the display image is used for indicating the second processor to check the display image, and displaying the display image according to the currently set display mode after the check is successful.
The accuracy of the display image can be effectively improved through the verification of the second processor.
Therefore, the vehicle instrument information display method provided by the embodiment of the application is applied to the first processor, and the vehicle original information sent by the microcontroller is obtained through the vehicle entertainment operation system running on the first processor; processing the original information of the vehicle to obtain the instrument information of the vehicle; obtaining a display image according to the currently set display mode and the vehicle instrument information; and sending the display image to the second processor, wherein the display image is used for indicating the second processor to check the display image, and displaying the display image according to the currently set display mode after the check is successful. According to the technical scheme provided by the embodiment of the application, the display image corresponding to the vehicle instrument information is obtained through the vehicle entertainment operation system running on the first processor, and when the second processor is successfully checked, the display image is displayed on the display screen of the vehicle, so that the entertainment function and the instrument function can be realized only by using the entertainment operation system, the development difficulty and complexity are reduced, and the user experience is effectively improved.
In another embodiment of the present application, the driver may select a display mode when the vehicle meter information is displayed. For example, if it is detected that the running speed of the vehicle is less than or equal to the preset speed, the current display mode is switched to the target display mode according to a first instruction for switching to the target display mode, which is input by a user; when the current display mode is the second display mode or the third display mode, if the running speed of the vehicle is detected to be greater than the preset speed and the current running application program is not the preset application program, switching the display mode to the third display mode; and when the current display mode is the third display mode, if the running speed of the vehicle is detected to be greater than the preset speed and the currently running application program is the preset application program, switching the display mode to the second display mode.
For example, the preset speed may be 5km/h, and when the running speed of the vehicle is greater than or equal to 5km/h, the user may optionally switch the display mode through the touch function of the screen. If the running speed of the vehicle is greater than 5km/h, the first display mode of the user is a full-screen entertainment mode, the entertainment information is displayed on the whole screen, and the touch function of the screen can be forbidden, so that the display mode is prevented from being switched due to false touch of a driver in the driving process. However, in order to further enhance the user experience, physical keys or voice control may be set, and the display mode may be switched by using the physical keys or voice control.
By way of example, the preset application is an application required by the driver during driving, such as navigation, and the embodiment of the present application does not limit the specific application.
According to the embodiment of the application, the current display mode is switched according to the running speed of the vehicle and the operation of the user, so that the user experience can be greatly improved.
In order to facilitate understanding of the method for processing the original information of the vehicle to obtain the vehicle meter information described in the above embodiment, the method for obtaining the vehicle meter information will be described in detail by way of a specific embodiment with reference to the structure shown in fig. 1.
For example, the vehicle signal hardware abstraction module VehicleHAL and the instrument service module dimservicecan be used for receiving original information of the vehicle, the library file rawdata_process can be loaded through the dimservicer, and the original information of the vehicle, which can be obtained from the microcontroller, comprises gears, vehicle speeds, rotation speed left and right steering lamps, storage battery voltages, endurance mileage, position lamps, high beam lamps, dipped beam lamps, average fuel consumption and the like.
Further, in order to avoid conflict of data processing of different priorities, processing efficiency of processing original information of a vehicle is improved, and it is guaranteed that data of different priorities can be processed in time, two threads can be defined in a rawdata_process, one Thread dim_recv_thread_run is responsible for receiving data from a bottom layer and adding the data to a database, and the other Thread dim_process_thread_run is responsible for processing the data in the database.
For example, the rawdata_process call Thread dim_recv_thread_run interface function implements receiving the original data of the vehicle body, and 5 data queues, namely, data queue_10ms, data queue_20ms, data queue_50ms, data queue_100deg.ms, and data queue_other, may be predefined, and each data packet may be configured by the contents of the following table 2.
TABLE 2
The priority of the gear and the vehicle speed is 10 and the period is 10ms according to table 2. The priority of the rotation speed is 9, and the period is 20ms. The priorities of the left steering lamp, the right steering lamp, the storage battery voltage and the endurance mileage are 8, and the period is 50ms. The priority of the position light, the high beam light, the low beam light and the fog light is 7, and the period is 100ms. The priority of other data is 6 and the period is 150ms. Wherein the higher the word, the higher the priority. The embodiments of the present application will be described by way of example only, and are not intended to be limiting.
For example, assuming that the microcontroller is an MCU and the first processor is an MPU, the data structures of the different data packets may be defined by:
typedef struct
{ uint8 ecu_gear_position; gear value
uint8 ecu_gear_pos_map function; gear failure
uint8 ABS_FRONT_WHEEL_SPEED; front wheel speed
uint8 abs_front_white_speed_vali; whether the wheel speed of the front wheel is valid
uint8 ABS_REAR_WHEEL_SPEED; wheel speed of the wheel
uint8 ABS_REAR_WHEEL_SPEED_VALI; whether the wheel speed is valid/rear wheel speed
A uint8 priority; priority level//
···}rawdata_10ms；
typedef struct
{ uint8 ecu_eng_rpm_120; rotational speed
uint8 ecu_eng_rpm_singal_facility; whether the rotation speed is effective
A uint8 priority; priority level//
···}rawdata_20ms；
typedef struct
{ uint8 MCU_BLINKDRIVE_LEFT; the left/right turn signal being on or off
uint8 MCU_BLINKDRIVE_Right; the/right turn signal is on or off;
a uint8 priority; priority level//
···}rawdata_50ms；
typedef struct
{ uint8 FRONT_POSITION_LAMP_STATUS; the lamp on or off at the left position
uint8 REAR_POSITION_LAMP_STATUS; the/right position light is on or off;
uint8 HIGH_BEAM_LAMP_STATUS; status of the high beam
uint8 left_front_fog_lamp_status; status of the left fog lamp
uint8 right_front_fog_lamp_status; status of the right fog lamp
A uint8 priority; priority level//
···}rawdata_100ms；
typedef struct
{ uint8 other; other raw data types
···}rawdata_other；
For example, when a new data packet comes, the data packet is added to the tail of the dataqueue according to the variables in the data structure, where the data structure may be shown in the following table 3:
TABLE 3 Table 3
Fields HEADER FRAME LEN RAW_DATA CheckSum Trail
Number of bytes 4 2 2 N 1 3
As shown in table 3, the data result includes fields HEADER FRAME, LEN, raw_ DATA, checkSum, trail, and the corresponding byte numbers are 4, 2, N, 1, and 3. The embodiment of the present application is described by taking table 3 as an example, but the embodiment of the present application is not limited thereto. The data type of the frame HEADER is uint8 HEADER [4] = {0xfe,0x5a,0xaa,0xa5}. The data type of the end-of-frame Trail is uint8 header [3] = {0xa5,0x55,0x5a }. The embodiment of the present application is only described by taking this sequence as an example, but the embodiment of the present application is not limited thereto.
For example, thread dim_process_thread_run maintains a list of priorities, traverses from high priority to low priority, processes data of high priority, processes data of another high priority again until all priorities are traversed, and performs the next round of traversal. For example, the first priority is 10, the first packet is fetched from dataqueue_10ms, after processing one packet is completed, the next priority is 9, the dataqueue_20ms packet is processed, the next priority is 8, and so on. After processing the data packet with the priority of 6, starting from the priority of 10, and because the priorities are different, if some dataquese has no data packet, directly skipping the dataquese to process the next priority. It can be understood that the processed data packet is updated to the meter function module, and the data packet is deleted after no abnormality is displayed, so as to save the storage space.
It can be understood that the meter information that must be saved, such as the small meter mileage, the total meter mileage, etc., may be stored in a nonvolatile memory, which may be a storage space in the microprocessor or an independent storage space, in addition to being reported to the meter function module, and the embodiment of the present application does not limit this. When the vehicle is turned off, mileage information can be stored once, so that when the vehicle is powered on, the latest stored value is read to continuously perform integration operation.
Therefore, the method for processing the data can effectively ensure the accuracy of the obtained vehicle instrument information.
Fig. 3 is a flowchart of a vehicle instrument information display method applied to a second processor according to an embodiment of the present application. The vehicle meter information display method applied to the second processor may be performed by software and/or hardware means, for example, the hardware means may be a vehicle meter information display means, which may be an inspection processing module in a vehicle. For example, referring to fig. 3, the vehicle instrument information display method applied to the second processor may include:
s301, receiving a display image sent by a first processor and a currently set display mode sent by a microcontroller, wherein the display image comprises an instrument display image corresponding to instrument display information of a vehicle.
According to the above embodiment, the display image sent by the first processor and the currently set display mode sent by the microcontroller are in a corresponding relationship, that is, the size and the position of the display area corresponding to the meter display image in different display modes are different.
S302, acquiring an instrument display image in a current display area according to the current display area of the instrument display image corresponding to the display mode, performing CRC (cyclic redundancy check) on the instrument display image, and performing RGB (red, green and blue) on display icons in the instrument display image.
For example, in the running process of the vehicle entertainment operation system, the microcontroller and the first processor can perform periodic communication, for example, the MCU and the MPU perform periodic communication, the MCU can acquire display modes set in the MPU, and the second processor performs inspection on different display areas according to different display modes, so that inspection resources are saved. For example, the first display mode requires checking of the entire display image, the second display mode requires checking of only a small area where the vehicle meter information is displayed, and the third display mode requires checking of the content displayed in the area corresponding to the vehicle meter information.
For example, when performing CRC check on the meter display image and performing RGB check on the display icon in the meter display image, the meter display image may be subjected to CRC check to obtain a CRC check result, and a plurality of continuous display frames of the meter display image are subjected to CRC check to obtain a CRC check state of each display frame; if the CRC check result is consistent with the preset CRC check result and the CRC check states of at least two display frames are inconsistent, determining that the CRC check is successful; performing RGB data calculation on display icons in the instrument display image to obtain a calculation result; if the calculation result is within the preset range, the RGB verification is determined to be successful.
For example, when performing CRC check, the current display area of the meter display image may be divided into a plurality of small areas, and the second processor performs CRC check on the plurality of small areas, respectively, and if the obtained check result is consistent with the preset CRC check result, it is determined that no abnormality occurs in the area. In addition, the display frame stop checking mechanism can also perform CRC check on each display frame, if the CRC check states of at least two display frames are inconsistent, the current display frame is judged not to be in a frozen state, and the display frame is judged not to have abnormality, namely the CRC check is successful.
For example, since the display screen is displayed in three colors of RGB, when performing RGB verification, calculation of RGB data can be performed on the meter icon, and whether the RGB data is within a desired range is determined, and if the RGB data is within the desired range, it is determined that no abnormality occurs in the display area, that is, the RGB verification is successful.
In the embodiment of the application, the accuracy of the vehicle instrument information displayed by the display image can be improved by performing CRC check and RGB check on the display image.
For example, when the CRC check and/or the RGB check fail, check failure information may be sent to the microcontroller, specifically, if the CRC check fails, first check failure information is sent to the microcontroller; if RGB verification fails, sending second verification failure information to the microcontroller; and if the CRC check and the RGB check fail, sending third check failure information to the microcontroller.
In the embodiment of the application, different verification failure information is sent to the microcontroller according to different verification modes, so that the microcontroller can execute different measures according to different verification failure information, thereby ensuring the correct display of the vehicle instrument information.
And S303, when the CRC check and the RGB check are successful, sending check success information to the microcontroller, wherein the check success information is used for indicating the microcontroller to control the display image to be displayed according to the currently set display mode.
It can be seen that the vehicle instrument information display method provided by the embodiment of the application is applied to the second processor, and the display image sent by the first processor and the currently set display mode sent by the microcontroller are received, wherein the display image comprises an instrument display image corresponding to the vehicle instrument display information; acquiring an instrument display image in a current display area according to the current display area of the instrument display image corresponding to the display mode, performing CRC (cyclic redundancy check) on the instrument display image, and performing RGB (red, green and blue) on display icons in the instrument display image; and when the CRC check and the RGB check are successful, sending check success information to the microcontroller, wherein the check success information is used for indicating the microcontroller to control the display image to be displayed according to the currently set display mode. According to the technical scheme provided by the embodiment of the application, the second processor performs CRC check and RGB check on the display image, so that the accuracy of display content in the display image is ensured.
Fig. 4 is a flow chart of a vehicle instrument information display method applied to a microcontroller according to an embodiment of the present application. The vehicle meter information display method applied to the microcontroller may be performed by a software and/or hardware device, for example, the hardware device may be a vehicle meter information display device, which may be a microcontroller in a vehicle. For example, referring to fig. 4, the vehicle instrument information display method applied to the microcontroller may include:
s401, collecting original information of a vehicle.
By way of example, the microcontroller can collect the original vehicle information in real time when collecting the original vehicle information so as to ensure the real-time update of the displayed vehicle instrument information.
And S402, transmitting the original vehicle information to the first processor, wherein the original vehicle information is used for indicating the first processor to process the original vehicle information to obtain a display image, and checking the display image through the second processor.
For example, the method for processing the original information of the vehicle by the first processor to obtain the display image may be described in the above embodiment, and this embodiment is not described herein again. In addition, the verification of the display image by the second processor may refer to the verification process described in the embodiment, which is not described herein.
And S403, when the verification success information sent by the second processor is received, controlling the display image to be displayed according to the currently set display mode.
For example, the microcontroller may obtain the currently set display mode through communication with the first processor.
Therefore, the vehicle instrument information display method provided by the embodiment of the application is applied to the microcontroller and is used for collecting the original information of the vehicle; the method comprises the steps that original vehicle information is sent to a first processor, the original vehicle information is used for indicating the first processor to process the original vehicle information to obtain a display image, and the second processor is used for checking the display image; and when the verification success information sent by the second processor is received, controlling to display the display image according to the currently set display mode. The technical scheme provided by the embodiment of the application can display the display image which is successfully checked through the control of the microcontroller, and can ensure the timeliness and the accuracy of the display image.
In another embodiment of the present application, after the start-up of the microcontroller and before the start-up of the vehicle entertainment operating system, the meter display image and the boot image corresponding to the vehicle meter information stored in the nonvolatile memory are displayed by the screen display technology.
For example, after the microcontroller MCU of the vehicle is powered on, it may be necessary to have a certain time interval for the vehicle entertainment operating system to start, so before the vehicle entertainment operating system starts, the MCU may acquire vehicle information and power up the second processor for initialization, so that the startup animation and the vehicle instrument information are displayed quickly. After the MCU powers on the MPU, the vehicle entertainment operating system 12S starts up and then takes over the second processor, and by the method described in the above embodiment, a display image is obtained according to the original information of the vehicle.
It will be appreciated that the meter display image displayed prior to the start of the vehicle entertainment operating system may be a meter display image of vehicle meter information stored at the last power down of the vehicle.
In the embodiment of the application, the instrument display image and the starting image stored in the nonvolatile memory are displayed, so that the efficiency of displaying the vehicle instrument information is improved, and the user experience can be effectively improved.
In another embodiment of the present application, a microcontroller in the vehicle may receive the verification failure information sent by the second processor; if the verification failure information is the second verification failure information, acquiring a display icon stored in advance in a nonvolatile memory, and updating the display icon in the display image which fails to verify by using the display icon stored in advance; if the verification failure information is the first verification failure information or the third verification failure information, the first verification failure information or the third verification failure information is sent to the first processor, and the first verification failure information or the third verification failure information is used for indicating the first processor to send a new display image to the second processor. The first check information, the second check information and the third check information may be described with reference to the above embodiments, and the embodiments of the present application are not described herein again.
For example, if the verification failure information is the second verification failure information, the second processor promptly notifies the microcontroller to display the icon pre-stored in the FLASH to the fixed area through the OSD (On Screen Display) function. In addition, the microcontroller synchronously informs the Dimservice on the first processor of the abnormality of the display area, and the Dimservice also redraws the display area.
For example, if the verification failure information is the first verification failure information or the third verification failure information, the microcontroller synchronously notifies the dimsparing display area on the first processor of abnormality, and the dimsparing also redraws the display area.
For example, the microcontroller may perform heartbeat packet communication with the first processor, for example, heartbeat packet communication between the MCU and the MPU, and in the communication process, if the MPU does not have feedback in a fixed time, it is determined that the MPU is abnormal in operation, the MCU quickly restarts the MPU, and at the same time, the MCU notifies the second processor to display normal meter information, and waits for the MPU to restart.
In the embodiment of the application, different operations are executed according to different verification failure information, so that the normal display of the vehicle instrument information is ensured, and the user experience is greatly improved.
In another embodiment of the present application, the running state of the vehicle entertainment operating system running on the first processor may be detected by a heartbeat communication between the microcontroller and the first processor; if the running state of the vehicle entertainment operation system is detected to be an abnormal state, acquiring display information corresponding to the original information of the vehicle in a nonvolatile memory according to the acquired original information of the vehicle; generating a substitute instrument display image corresponding to the instrument information of the vehicle according to the original information and the display information of the vehicle through a screen display technology; and updating the currently displayed meter display image according to the alternative meter display image.
For example, when the running state of the vehicle entertainment operation system is an abnormal state, the microcontroller may send the collected vehicle original information or the converted or calculated vehicle instrument information to the second processor, and obtain display information corresponding to the vehicle original information, for example, a display icon or the like, in the nonvolatile memory, and generate an instrument display image to display in the display area. For example, if the mileage of the vehicle is 567, corresponding images of 5,6, and 7 are acquired in the nonvolatile memory, respectively, and an image based on the mileage of the acquired images is acquired.
In the embodiment of the application, the display information corresponding to the original information of the vehicle is obtained in the nonvolatile memory, so that the instrument display image is obtained, the vehicle instrument information can still be displayed when the entertainment operation system of the vehicle is abnormal, the normal display of the vehicle instrument information is ensured, and the user experience is improved.
Fig. 5 is a schematic structural diagram of a vehicle meter information display device 50 according to an embodiment of the present application, for example, referring to fig. 5, the vehicle meter information display device 50 may include:
the acquiring module 501 is configured to acquire, by using a vehicle entertainment operating system running on the first processor, raw information of a vehicle sent by the microcontroller.
The processing module 502 is configured to process original information of a vehicle to obtain vehicle instrument information;
the processing module 502 is further configured to obtain a display image according to the currently set display mode and the vehicle meter information.
The image sending module 503 is configured to send a display image to the second processor, where the display image is used to instruct the second processor to verify the display image, and after the verification is successful, display the display image according to the currently set display mode.
Optionally, the processing module 502 is specifically configured to add the original information of the vehicle to the original information database through the first thread; acquiring original information of the vehicle stored in an original information database through a second thread, and dividing the original information of the vehicle into at least two preset data packets; and processing the original information of the vehicle in at least two data packets according to the priority and the data processing period corresponding to each data packet to obtain the vehicle instrument information.
Optionally, the processing module 502 is specifically configured to perform validity check on the original information of the vehicle in each data packet according to the order of priority from high to low and the data processing period corresponding to each data packet, and remove invalid original information of the vehicle; and converting or calculating the vehicle original information remained after the invalid vehicle original information is removed from each data packet to obtain the vehicle instrument information.
Optionally, the processing module 502 is further configured to send the vehicle meter information to the nonvolatile memory for storage after obtaining the vehicle meter information.
Optionally, the processing module 502 is specifically configured to obtain, according to the vehicle meter information, a full-screen display image corresponding to the vehicle meter information when the currently set display mode is the first display mode. When the currently set display mode is the second display mode, a first combined display image is obtained according to the vehicle instrument information and the entertainment information, a first display area in the first combined display image is an instrument display image corresponding to the vehicle instrument information, a second display area is an entertainment display image corresponding to the entertainment information, and the first display area is smaller than the second display area. When the currently set display mode is a third display mode, a second combined display image is obtained according to the vehicle instrument information and the entertainment display information, a third display area in the second combined display image is an instrument display image corresponding to the vehicle instrument information, a fourth display area is an entertainment display image corresponding to the entertainment information, and the first display area is equal to the second display area.
Optionally, the apparatus further includes a switching module 504, where the switching module 504 is configured to switch the current display mode to the target display mode according to a first instruction input by a user for switching to the target display mode when the running speed of the vehicle is detected to be less than or equal to the preset speed. When the current display mode is the second display mode or the third display mode, if the running speed of the vehicle is detected to be greater than the preset speed and the currently running application program is not the preset application program, the display mode is switched to the third display mode. And when the current display mode is the third display mode, if the speed of the running vehicle is detected to be greater than the preset speed and the current running application program is the preset application program, switching the display mode to the second display mode.
The vehicle instrument information display device provided by the embodiment of the application can be a microprocessor MPU in a vehicle, and can execute the technical scheme of the vehicle instrument information display method applied to the first processor in any of the embodiments, and the implementation principle and beneficial effects of the vehicle instrument information display device are similar to those of the vehicle instrument information display method applied to the first processor, and can be seen from the implementation principle and beneficial effects of the vehicle instrument information display method applied to the first processor, and are not repeated here.
Fig. 6 is a schematic structural diagram of another vehicle meter information display device 60 according to an embodiment of the present application, for example, referring to fig. 6, the vehicle meter information display device 60 may include:
the receiving module 601 is configured to receive a display image sent by the first processor and a currently set display mode sent by the microcontroller, where the display image includes an instrument display image corresponding to instrument display information of the vehicle.
And the verification module 602 is configured to obtain an instrument display image in the current display area according to the current display area of the instrument display image corresponding to the display mode, perform CRC verification on the instrument display image, and perform RGB verification on the display icon in the instrument display image.
And the information sending module 603 is configured to send, when the CRC check and the RGB check are successful, check success information to the microprocessor, where the check success information is used to instruct the microcontroller to control the display image to be displayed according to the currently set display mode.
Optionally, the check module 602 is specifically configured to perform CRC check on the meter display image to obtain a CRC check result, and perform CRC check on a plurality of consecutive display frames of the meter display image to obtain a CRC check state of each display frame; and when the CRC check result is consistent with the preset CRC check result and the CRC check states of at least two display frames are inconsistent, determining that the CRC check is successful. Performing RGB data calculation on display icons in the instrument display image to obtain a calculation result; and when the calculation result is within the preset range, determining that the RGB check is successful.
Optionally, the information sending module 603 is further configured to send first check failure information to the microcontroller when the CRC check fails. When the RGB verification fails, sending second verification failure information to the microcontroller; and when the CRC check and the RGB check fail, sending third check failure information to the microcontroller.
The vehicle instrument information display device provided by the embodiment of the application can execute the technical scheme of the vehicle instrument information display method applied to the second processor in any embodiment, and the implementation principle and beneficial effects of the vehicle instrument information display device are similar to those of the vehicle instrument information display method applied to the second processor, and can be seen in the implementation principle and beneficial effects of the vehicle instrument information display method applied to the second processor, and the detailed description is omitted herein.
Fig. 7 is a schematic structural diagram of yet another vehicle meter information display device 70 according to an embodiment of the present application, for example, referring to fig. 7, the vehicle meter information display device 70 may include:
the acquisition module 701 is configured to acquire vehicle original information of a vehicle.
The information synchronization module 702 is configured to send vehicle original information to the first processor, where the vehicle original information is used to instruct the first processor to process the vehicle original information to obtain a display image, and verify the display image by the second processor.
And the control module 703 is configured to control, when receiving the verification success information sent by the second processor, to display the display image according to the currently set display mode.
Optionally, the control module 703 is further configured to display, by using a screen display technology, an instrument display image and a boot image corresponding to the vehicle instrument information stored in the nonvolatile memory after the start-up of the microcontroller and before the start-up of the vehicle entertainment operating system.
Optionally, the apparatus further includes a detection module 704, where the detection module 704 is configured to receive verification failure information sent by the second processor; and when the verification failure information is the second verification failure information, acquiring a display icon stored in the nonvolatile memory in advance, and updating the display icon in the display image which fails to verify by using the display icon stored in advance. And when the verification failure information is the first verification failure information or the third verification failure information, the first verification failure information or the third verification failure information is sent to the first processor, and the first verification failure information or the third verification failure information is used for indicating the first processor to send a new display image to the second processor.
Optionally, the device detection module 704 is further configured to detect an operation state of a vehicle entertainment operating system running on the first processor through heartbeat communication between the microcontroller and the first processor; when the running state of the vehicle entertainment operation system is detected to be an abnormal state, acquiring display information corresponding to the original information of the vehicle in a nonvolatile memory according to the acquired original information of the vehicle; generating a substitute instrument display image corresponding to the instrument information of the vehicle according to the original information and the display information of the vehicle through a screen display technology; and updating the currently displayed meter display image according to the alternative meter display image.
The vehicle instrument information display device provided by the embodiment of the application can be a Micro Control Unit (MCU) in a vehicle, and can execute the technical scheme of the vehicle instrument information display method applied to the microcontroller in any embodiment, and the implementation principle and beneficial effects of the vehicle instrument information display device are similar to those of the vehicle instrument information display method applied to the microcontroller, and can be seen from the implementation principle and beneficial effects of the vehicle instrument information display method applied to the microcontroller, and are not repeated herein.
The embodiment of the application also provides electronic equipment which can comprise a first processor, a microcontroller in communication connection with the first processor and a second processor in communication connection with the first processor and the microcontroller. The specific reference may be made to fig. 1, and the embodiments of the present application are not described herein.
By way of example, the electronic device may be an electronic device in a vehicle, the first processor may be a microprocessor MPU, the microcontroller may be a micro control unit MCU of the vehicle, and the second processor may be an added processor for checking the display image.
The present application also provides a computer-readable storage medium, which may include: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk or an optical disk, etc., in which program codes may be stored, and in particular, the computer-readable storage medium stores program instructions for the methods in the above embodiments.
The present application also provides a program product comprising execution instructions stored in a readable storage medium. The at least one processor of the electronic device may read the execution instructions from the readable storage medium, and execution of the execution instructions by the at least one processor causes the electronic device to implement the vehicle meter information display method provided by the various embodiments described above.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.

Claims (17)

1. A vehicle meter information display method, characterized by being applied to a first processor, comprising:
acquiring original information of a vehicle sent by a microcontroller through a vehicle entertainment operation system running on a first processor;
processing the original information of the vehicle to obtain vehicle instrument information;
obtaining a display image according to the currently set display mode and the vehicle instrument information;
the display image is sent to a second processor, and the display image is used for indicating the second processor to check the display image, and after the check is successful, the display image is displayed according to a currently set display mode;
The processing the original information of the vehicle to obtain the instrument information of the vehicle comprises the following steps:
adding the original information of the vehicle to an original information database through a first thread;
acquiring original information of the vehicle stored in an original information database through a second thread, and dividing the original information of the vehicle into at least two preset data packets;
and processing the original information of the vehicle in the at least two data packets according to the priority and the data processing period corresponding to each data packet to obtain the vehicle instrument information.
2. The method according to claim 1, wherein the processing the vehicle original information in the at least two data packets according to the priority and the data processing period corresponding to each data packet to obtain vehicle meter information includes:
according to the sequence from high priority to low priority and the data processing period corresponding to each data packet, carrying out validity check on the original information of the vehicle in each data packet, and removing the invalid original information of the vehicle;
and converting or calculating the vehicle original information remained after the invalid vehicle original information is removed from each data packet to obtain the vehicle instrument information.
3. The method according to claim 1 or 2, characterized by, after obtaining vehicle meter information, comprising:
and sending the vehicle instrument information to a nonvolatile memory for storage.
4. The method of claim 1, wherein the obtaining a display image based on the currently set display mode and the vehicle meter information comprises:
if the currently set display mode is the first display mode, obtaining a full-screen display image corresponding to the vehicle instrument information according to the vehicle instrument information;
if the currently set display mode is a second display mode, a first combined display image is obtained according to the vehicle instrument information and the entertainment information, a first display area in the first combined display image is an instrument display image corresponding to the vehicle instrument information, a second display area is an entertainment display image corresponding to the entertainment information, and the first display area is smaller than the second display area;
and if the currently set display mode is a third display mode, obtaining a second combined display image according to the vehicle instrument information and the entertainment display information, wherein a third display area in the second combined display image is an instrument display image corresponding to the vehicle instrument information, a fourth display area is an entertainment display image corresponding to the entertainment information, and the third display area is equal to the fourth display area.
5. The method according to claim 4, wherein the method further comprises:
if the running speed of the vehicle is detected to be less than or equal to the preset speed, switching the current display mode to the target display mode according to a first instruction input by a user for switching to the target display mode;
when the current display mode is the second display mode or the third display mode, if the running speed of the vehicle is detected to be greater than the preset speed and the current running application program is not the preset application program, switching the display mode to the third display mode;
and when the current display mode is the third display mode, if the running speed of the vehicle is detected to be greater than the preset speed and the currently running application program is the preset application program, switching the display mode to the second display mode.
6. A vehicle meter information display method, characterized by being applied to a second processor, comprising:
receiving a display image sent by a first processor and a currently set display mode sent by a microcontroller, wherein the display image comprises an instrument display image corresponding to instrument display information of a vehicle;
acquiring an instrument display image in a current display area according to the current display area of the instrument display image corresponding to the display mode, performing CRC (cyclic redundancy check) on the instrument display image, and performing RGB (red, green and blue) on a display icon in the instrument display image;
When the CRC check and the RGB check are successful, sending check success information to the microcontroller, wherein the check success information is used for indicating the microcontroller to control the display image to be displayed according to a currently set display mode;
the vehicle instrument information is obtained by adding vehicle original information into an original information database by the first processor through a first thread, acquiring the vehicle original information stored in the original information database through a second thread, dividing the vehicle original information into at least two preset data packets, and processing the vehicle original information in the at least two data packets according to the priority and the data processing period corresponding to each data packet.
7. The method of claim 6, wherein the CRC checking the meter display image and RGB checking the display icons in the meter display image comprises:
performing CRC (cyclic redundancy check) on the instrument display image to obtain a CRC result, and performing CRC on a plurality of continuous display frames of the instrument display image to obtain a CRC state of each display frame;
if the CRC check result is consistent with the preset CRC check result and the CRC check states of at least two display frames are inconsistent, determining that the CRC check is successful;
Performing RGB data calculation on the display icons in the instrument display image to obtain a calculation result;
and if the calculation result is within the preset range, determining that RGB verification is successful.
8. The method of claim 7, wherein the method further comprises:
if the CRC fails, a first check failure message is sent to the microcontroller;
if the RGB verification fails, sending second verification failure information to the microcontroller;
and if the CRC check and the RGB check fail, sending third check failure information to the microcontroller.
9. A vehicle meter information display method, characterized by being applied to a microcontroller, comprising:
collecting original information of a vehicle;
the vehicle original information is sent to a first processor, and the vehicle original information is used for indicating the first processor to process the vehicle original information to obtain a display image, and the second processor is used for checking the display image;
when the verification success information sent by the second processor is received, controlling the display image to be displayed according to the currently set display mode;
the vehicle instrument information is obtained by adding vehicle original information into an original information database by the first processor through a first thread, acquiring the vehicle original information stored in the original information database through a second thread, dividing the vehicle original information into at least two preset data packets, and processing the vehicle original information in the at least two data packets according to the priority and the data processing period corresponding to each data packet.
10. The method according to claim 9, wherein the method further comprises:
after the microcontroller is started and before the vehicle entertainment operating system is started, the instrument display image and the starting image corresponding to the vehicle instrument information stored in the nonvolatile memory are displayed through the screen display technology.
11. The method according to claim 9, wherein the method further comprises:
receiving verification failure information sent by the second processor;
if the verification failure information is the second verification failure information, acquiring a display icon pre-stored in a nonvolatile memory, and updating the display icon in the display image which fails to verify by using the pre-stored display icon;
if the verification failure information is first verification failure information or third verification failure information, the first verification failure information or the third verification failure information is sent to the first processor, and the first verification failure information or the third verification failure information is used for indicating the first processor to send a new display image to the second processor;
the first check failure information is generated after the second processor fails to perform CRC check on the instrument display image; the second verification failure information is generated after the second processor fails RGB verification on the display icons in the instrument display image; and the third check failure information is generated after the CRC check and the RGB check fail.
12. The method according to claim 9, wherein the method further comprises:
detecting an operational state of a vehicle entertainment operating system running on the first processor through heartbeat communication between the microcontroller and the first processor;
if the running state of the vehicle entertainment operation system is detected to be an abnormal state, acquiring display information corresponding to the original information of the vehicle in a nonvolatile memory according to the acquired original information of the vehicle;
generating a substitute instrument display image corresponding to the vehicle instrument information according to the original information and the display information of the vehicle through a screen display technology;
and updating the currently displayed meter display image according to the alternative meter display image.
13. A vehicle meter information display device, characterized by comprising:
the acquisition module is used for acquiring the original information of the vehicle sent by the microcontroller through a vehicle entertainment operation system running on the first processor;
the processing module is used for processing the original information of the vehicle to obtain vehicle instrument information;
the processing module is further used for obtaining a display image according to the currently set display mode and the vehicle instrument information;
The image sending module is used for sending the display image to the second processor, and the display image is used for indicating the second processor to check the display image and displaying the display image according to a currently set display mode after the check is successful;
the processing module is specifically configured to add the original information of the vehicle to an original information database through a first thread; acquiring original information of the vehicle stored in an original information database through a second thread, and dividing the original information of the vehicle into at least two preset data packets; and processing the original information of the vehicle in the at least two data packets according to the priority and the data processing period corresponding to each data packet to obtain the vehicle instrument information.
14. A vehicle meter information display device, characterized by comprising:
the receiving module is used for receiving a display image sent by the first processor and a currently set display mode sent by the microcontroller, wherein the display image comprises an instrument display image corresponding to instrument display information of the vehicle;
the verification module is used for acquiring the instrument display image in the current display area according to the current display area of the instrument display image corresponding to the display mode, performing CRC (cyclic redundancy check) on the instrument display image, and performing RGB (red, green and blue) verification on the display icon in the instrument display image;
The information sending module is used for sending verification success information to the microcontroller when the CRC and RGB verification are successful, and the verification success information is used for indicating the microcontroller to control the display image to be displayed according to the currently set display mode;
the vehicle instrument information is obtained by adding vehicle original information into an original information database by the first processor through a first thread, acquiring the vehicle original information stored in the original information database through a second thread, dividing the vehicle original information into at least two preset data packets, and processing the vehicle original information in the at least two data packets according to the priority and the data processing period corresponding to each data packet.
15. A vehicle meter information display device, characterized by comprising:
the acquisition module is used for acquiring vehicle original information of the vehicle;
the information synchronization module is used for sending the original vehicle information to the first processor, and the original vehicle information is used for indicating the first processor to process the original vehicle information to obtain a display image and checking the display image through the second processor;
The control module is used for controlling the display image to be displayed according to the currently set display mode when receiving the verification success information sent by the second processor;
the vehicle instrument information is obtained by adding vehicle original information into an original information database by the first processor through a first thread, acquiring the vehicle original information stored in the original information database through a second thread, dividing the vehicle original information into at least two preset data packets, and processing the vehicle original information in the at least two data packets according to the priority and the data processing period corresponding to each data packet.
16. An electronic device, comprising: a first processor, a microcontroller communicatively coupled to the first processor, and a second processor communicatively coupled to the first processor and the microcontroller;
the first processor executing computer-executable instructions stored by the first processor to implement the method of any one of claims 1-5;
the second processor executing computer-executable instructions stored by the second processor to implement the method of any one of claims 6-8;
The microcontroller executes computer-executable instructions stored by the microcontroller to implement the method of any one of claims 9-12.
17. A computer readable storage medium having stored therein computer executable instructions which when executed by a processor are adapted to carry out the method of any one of claims 1-5 or claims 6-8 or claims 9-12.
CN202210193396.0A 2022-02-28 2022-02-28 Vehicle instrument information display method and device, electronic equipment and storage medium Active CN114546318B (en)

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