CN116069279B - Screen display method and vehicle-mounted terminal - Google Patents
Screen display method and vehicle-mounted terminal Download PDFInfo
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- CN116069279B CN116069279B CN202111300345.5A CN202111300345A CN116069279B CN 116069279 B CN116069279 B CN 116069279B CN 202111300345 A CN202111300345 A CN 202111300345A CN 116069279 B CN116069279 B CN 116069279B
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- 238000000034 method Methods 0.000 title claims abstract description 62
- 238000013075 data extraction Methods 0.000 claims abstract description 25
- 230000001276 controlling effect Effects 0.000 claims abstract description 18
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- 238000010248 power generation Methods 0.000 claims description 9
- 239000010705 motor oil Substances 0.000 claims description 8
- 238000012790 confirmation Methods 0.000 claims description 6
- 239000000446 fuel Substances 0.000 claims description 6
- 239000000295 fuel oil Substances 0.000 claims description 5
- 238000009877 rendering Methods 0.000 claims description 3
- 230000006870 function Effects 0.000 description 13
- 238000010586 diagram Methods 0.000 description 8
- 238000012545 processing Methods 0.000 description 7
- 238000004590 computer program Methods 0.000 description 6
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- 239000004973 liquid crystal related substance Substances 0.000 description 2
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- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
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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
Abstract
The embodiment of the application provides a screen display method and a vehicle-mounted terminal. The method comprises the following steps: the method comprises the steps of controlling to generate a first image layer and a second image layer, wherein the first image layer is used for displaying first image information corresponding to first display data regulated and controlled by a first controller, and the second image layer is used for displaying second image information corresponding to second display data regulated and controlled by a second controller; when the second controller cannot work normally, a first layer selection instruction sent by the first controller is received; responding to a data extraction instruction sent by a first controller, acquiring first display data, and generating first image information according to the first display data; and controlling the first layer to display the image and closing the second layer according to the first layer selection instruction. The method can ensure that the function with higher safety level is always normally displayed on the vehicle display screen under the condition that hardware is not added.
Description
Technical Field
The application relates to the field of automobiles, in particular to a screen display method and a vehicle-mounted terminal.
Background
As the functions of vehicles become more and more, the performance of vehicles becomes stronger, and many vehicles employ a liquid crystal meter or a vehicle control operation panel for liquid crystal display. For better user experience, many vehicles have richer elements/more prominent on the display of these parts. At present, interaction parts such as instruments and controls of the vehicle can involve functional safety certification of the vehicle. For the display effect, an operating system such as QNX/Linux is used to draw the screen, but even if the kernel of these operating systems passes the functional security requirement, in actual development and use, the system may be problematic and the display portion of the screen may not be displayed normally. On the other hand, in some special functions (such as vehicle warning information, etc.), the normal display under any condition must be ensured because the functional safety level is high.
The prior art displays the display content with high safety level in other forms such as warning lamps, so as to ensure that the functions can be displayed normally under any condition. However, this increases the hardware cost of vehicle manufacturing, and therefore, how to ensure that the function with a higher security level is always displayed normally on the vehicle display screen without adding hardware is a problem to be solved by those skilled in the art.
Disclosure of Invention
The embodiment of the application provides a screen display method and a vehicle-mounted terminal, which can realize that various functions of a vehicle are displayed through different display layers, so that the function with higher safety level is always normally displayed on a vehicle display screen.
In a first aspect, an embodiment of the present application provides a method for displaying a screen, which is applied to a display driving chip, including:
the method comprises the steps of controlling to generate a first image layer and a second image layer, wherein the first image layer is used for displaying first image information corresponding to first display data regulated and controlled by a first controller, and the second image layer is used for displaying second image information corresponding to second display data regulated and controlled by a second controller;
when the second controller cannot work normally, a first layer selection instruction sent by the first controller is received;
responding to a data extraction instruction sent by a first controller, acquiring first display data, and generating first image information according to the first display data;
and controlling the first layer to display the image and closing the second layer according to the first layer selection instruction.
In a second aspect, an embodiment of the present application provides a method for displaying a screen, applied to a first controller, including:
collecting working state data of a second controller;
judging whether the second controller can work normally or not according to the working state data;
when the second controller cannot work normally, a first layer selection instruction is sent to the display driving chip;
and sending a data extraction instruction to the display driving chip.
In a third aspect, an embodiment of the present application provides a vehicle-mounted terminal, including: the display driving device comprises a display driving chip, a first controller, a second controller, a memory and a display screen;
the display driving chip is used for controlling the display screen to generate a first layer and a second layer, receiving a first layer selection instruction sent by the first controller, controlling the first layer to display images according to the first layer selection instruction, closing the second layer, receiving a data extraction instruction sent by the first controller, extracting first display data to the memory according to the data extraction instruction, and generating first image information according to the first display data;
the first controller is used for collecting working state data of the second controller, judging whether the second controller can work normally, sending a first layer selection instruction to the display driving chip and sending a data extraction instruction to the display driving chip.
In a fourth aspect, embodiments of the present application provide a computer-readable storage medium, comprising:
the computer readable storage medium has instructions stored therein which, when run on a computer, implement the method as described in the first and/or second aspect.
Through implementing the embodiment of the application, the function with higher safety level can be ensured to be always normally displayed on the vehicle display screen, and the driving safety of a user is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a method for screen display according to an embodiment of the present application;
FIG. 2 is a flow chart of another method for screen display provided in an embodiment of the present application;
FIG. 3 is a flow chart of another method for screen display according to an embodiment of the present application;
fig. 4 is a schematic composition diagram of a vehicle-mounted terminal according to an embodiment of the present application;
fig. 5 is a schematic diagram of the composition of another vehicle-mounted terminal according to the embodiment of the present application;
fig. 6 is a schematic structural diagram of a screen display layer according to an embodiment of the present application;
fig. 7 is a schematic diagram of the composition of another vehicle-mounted terminal according to the embodiment of the present application.
Detailed Description
Embodiments of the present application are described below with reference to the accompanying drawings in the embodiments of the present application.
The terms "comprising" and "having" and any variations thereof in the description and claims of the present application and in the foregoing drawings are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.
Next, a method for displaying a screen according to an embodiment of the present application will be described in detail with reference to steps in fig. 1 to 3.
Referring to fig. 1, a flowchart of a method for displaying a screen, applied to a display driving chip, provided in an embodiment of the present application, may include the following steps:
s101, controlling to generate a first layer and a second layer.
The first image layer is used for displaying first image information corresponding to first display data regulated by the first controller, and the second image layer is used for displaying second image information corresponding to second display data regulated by the second controller. The first image layer is positioned above the second image layer, and the first image information and the second image information are in a state of being overlapped and displayed.
In one possible implementation, the first controller may be an MCU (micro control unit, microcontroller Unit), also called a single-chip microcomputer (Single Chip Microcomputer) or a single-chip microcomputer, which is configured to appropriately reduce the frequency and specification of the central processing unit (Central Process Unit; CPU), and integrate peripheral interfaces such as a memory (memory), a counter (Timer), a USB, an a/D conversion, UART, PLC, DMA, etc., and even LCD driving circuits on a single chip to form a chip-level computer for performing different combination control for different applications. The second controller may be SOC (System on Chip), also known as a system-on-chip, meaning that it is a product that is an integrated circuit with dedicated targets, containing the complete system and having the entire contents of embedded software.
S102, when the second controller cannot work normally, a first layer selection instruction sent by the first controller is received.
In one possible implementation, the first layer selection instruction is used to instruct the display driver chip to turn off the image display of the second layer. If the second controller cannot work normally, data on the vehicle instrument screen is displayed in disorder, so that driving safety of a driver is threatened. Therefore, the method of the embodiment of the application selects to close the corresponding second image layer when the second controller cannot work normally, and only displays the image information of the first image layer corresponding to the first controller.
S103, responding to a data extraction instruction sent by the first controller, acquiring first display data, and generating first image information according to the first display data.
The first display data is data with a safety level greater than a preset level, and includes at least one of battery and power generation system state image data, engine oil system state image data, engine state image data, fuel stock image data or vehicle speed image data. The second display data is data with the safety level smaller than the preset level and/or rendering data of the first display data, and comprises at least one of navigation map image data, rendered storage battery and power generation system state image data, rendered engine oil system state image data, rendered engine state image data, rendered fuel oil stock image data or rendered vehicle speed image data. The safety level and the preset level are determined by a technician according to the safety of the automobile function, and the first display data and the second display data are only for facilitating understanding of people on the method according to the embodiment of the application, and are not representative of the fact that the first display data and the second display data can only be the listed data.
Further, the first controller is not capable of directly transmitting display data to the display driving chip unlike the second controller, the first display data being stored in the memory of the in-vehicle terminal. The display driving chip is required to call corresponding first display data to the memory according to the data extraction instruction sent by the first controller.
Exemplary, if the first display data is: vehicle speed (60 km/h), the second display data is: navigation map information to the a-land, the first information may be in the form of "60 km/h"; if the first display data is: the fuel stock information (60% of fuel is remained), the first image information can be a fuel tank graph with a 60% label, the second image information can be an optimized fuel tank graph, and the first image information and the second image information are displayed in a superimposed mode to display a more vivid and attractive image for a user, so that the satisfaction degree of the user on the vehicle is improved.
S104, controlling the first layer to display images and closing the second layer according to the first layer selection instruction.
It can be seen that by implementing the method of the embodiment, the method is helpful to ensure that the related data with high safety level can be always displayed on the display screen of the vehicle machine or the instrument panel of the vehicle, so as to ensure the driving safety of the user. In addition, the method of the embodiment of the application does not need to install excessive parts on the vehicle, and the manufacturing cost of the vehicle is not increased.
Referring to fig. 2, a flowchart of another method for displaying a screen, applied to a display driving chip, according to an embodiment of the present application may include the following steps:
s201, when the second controller can work normally, receiving a second layer selection instruction sent by the first controller.
It should be noted that, the second layer selection instruction is used to control the display driving chip to activate the first layer and the second layer, so as to facilitate the subsequent display of the first image information and the second image information on the corresponding layers.
S202, controlling the first image layer and the second image layer to display images according to the second image layer selection instruction.
In one possible implementation, the first display data is acquired in response to a data extraction instruction of the first controller, and the first image information is generated according to the first display data. Then, receiving second display data sent by a second controller, and generating second image information according to the second display data; and finally, displaying the first image information on the first image layer and displaying the second image information on the second image layer. The displaying manner of the first image information and the second image information may refer to the steps in fig. 1, and will not be described herein.
It can be seen that through implementing this application embodiment, when the second controller can normally work, on-vehicle display screen or panel board can demonstrate more exquisite, vivid image information for the user, promotes user's automobile experience.
Referring to fig. 3, a flowchart of another method for displaying a screen according to an embodiment of the present application is applied to a first controller, and may include the following steps:
s301, collecting working state data of a second controller.
In one possible implementation, the first controller sends an operating state confirmation instruction to the second controller at preset time intervals; receiving working state feedback information of the second controller, and obtaining working state data of the second controller according to the working state feedback information; and finally, sending a data extraction instruction to the display driving chip.
For example, if the preset time interval is 0.2 seconds, the first controller sends the working state command to the second controller every 0.2 seconds. The skilled person can choose the most suitable preset time interval according to the actual situation.
S302, judging whether the second controller can work normally or not according to the working state data.
S303, when the second controller cannot work normally, a first layer selection instruction is sent to the display driving chip.
The first image layer selection instruction is used for instructing the display driving chip to control the first image layer to display images and closing the second image layer, the first image layer is used for displaying first image information corresponding to first display data regulated and controlled by the first controller, and the second image layer is used for displaying second image information corresponding to second display data regulated and controlled by the second controller.
In one possible implementation, when the second controller is able to operate normally, the second layer selection instruction is sent to the display driver chip, and the data extraction instruction is sent to the display driver chip. The second image layer selection instruction is used for instructing the display driving chip to control the first image layer and the second image layer to display images.
S304, sending a data extraction instruction to the display driving chip.
It should be noted that, the data extraction instruction is used for instructing the display driving chip to obtain the first display data. The first display data may include at least one of battery and power generation system status image data, engine oil system status image data, engine status image data, fuel inventory image data, or vehicle speed image data.
According to the method, the first controller can monitor the working state of the second controller in real time, and the display driving chip is controlled to adjust the display images of the vehicle-mounted display screen and/or the instrument panel at the first time when the second controller fails, so that the driving safety of a user is guaranteed to the greatest extent. And whether the second controller can work normally or not, the first controller can send a data extraction instruction to the display driving chip and display the first image data through the vehicle-mounted display screen and/or the instrument panel, so that the driving experience and the driving safety of a user can be considered.
The following describes the apparatus according to the embodiments of the present application with reference to the drawings.
Referring to fig. 4, a schematic composition diagram of a vehicle-mounted terminal provided in an embodiment of the present application may include:
the driving chip 410, the first controller 420, the second controller 430, the memory 440 and the display 450 are displayed to implement the method steps corresponding to those of fig. 1 to 3.
The display driving chip 410 may be used for controlling the display 450 to generate a first layer and a second layer, may be used for receiving a first layer selection instruction sent by the first controller, controlling the first layer to display an image and closing the second layer according to the first layer selection instruction, may be used for receiving a data extraction instruction sent by the first controller, extracting first display data from the memory 440 according to the data extraction instruction, and generating first image information according to the first display data.
In a possible implementation manner, the display driving chip 410 may be further configured to receive a second layer selection instruction sent by the first controller 420, control the first layer and the second layer to display images according to the second layer selection instruction, and further be configured to receive second display data sent by the second controller 430, and generate second image information according to the second display data.
The first controller 420 may be configured to collect working status data of the second controller 430, determine whether the second controller 430 can work normally, send a first layer selection instruction to the display driver chip 410, and send a data extraction instruction to the display driver chip 410.
In a possible implementation manner, the first controller 420 may be further configured to send a second layer selection instruction to the display driver chip 410, may be further configured to send an operation state confirmation instruction to the second controller 430, and may be further configured to receive operation state feedback information sent by the second controller 430, and obtain an operation state of the second controller 430 according to the operation state feedback information.
The second controller 430 may be configured to transmit second display data to the display driving chip 410, may be configured to receive an operation state confirmation instruction transmitted from the first controller 420, and may be configured to transmit operation state feedback information to the first controller 410.
The display 450 may be used to display first image information on a first layer and may be used to display second image information on a second layer.
More specific modules and/or functions of the vehicle-mounted terminal may refer to fig. 5. The display driving chip in fig. 5 corresponds to the display driving chip 410 in fig. 4, the MCU corresponds to the first controller 420 in fig. 4, the SOC corresponds to the second controller 430 in fig. 4, the display data storage module corresponds to the memory 440 in fig. 4, and the display screen corresponds to the display screen 450 in fig. 4.
In one possible implementation, if the SOC is unable to operate normally, the MCU will send a layer selection instruction to the display driver chip, and control the layer stacking output module of the display driver chip to output only the image information of the basic drawing layer (corresponding to the first layer mentioned in fig. 4) drawn by the basic drawing layer module to the display screen. If the SOC is capable of operating normally, the layer selection command sent by the MCU to the display driver chip will control the display driver chip to superimpose the image information of the basic drawing layer and the SOC drawing layer (corresponding to the second layer mentioned in fig. 4).
The display position information of the layer may refer to fig. 6, and the layer position information mainly related to the present application is: the first layer (corresponding to the above-mentioned basic drawing layer) is located above the second layer (corresponding to the above-mentioned SOC drawing layer). When the SOC control generates a plurality of layers of image information, for example, a third layer in fig. 6 may be added for auxiliary display, and the number of specific layers is determined based on the layers of image information generated by the SOC control. It should be noted that fig. 6 is only a diagram layer display method according to the embodiments of the present application, and in principle, a technician may flexibly design a position of a diagram layer.
It should be noted that fig. 5 is only for explaining the apparatus according to the embodiment of the present application in more detailed illustration, and is not meant to represent that the vehicle-mounted terminal according to the present application is only the structure shown in fig. 5, and should not be limited to this application. The specific vehicle-mounted terminal structure is designed by technicians according to actual conditions.
Referring to fig. 7, for a schematic composition diagram of another vehicle-mounted terminal provided in an embodiment of the present application, the vehicle-mounted terminal 50 may include:
processor 710, memory 720, and I/O interface 730. The processor 710, the memory 720 and the I/O interface 730 are communicatively coupled, the memory 720 being configured to store instructions, the processor 710 being configured to execute the instructions stored by the memory 720 to implement the method steps corresponding to fig. 1-3 as described above.
Processor 710 is configured to execute instructions stored in memory 720 to control I/O interface 730 to receive and transmit signals, thereby performing the steps of the method described above. The memory 720 may be integrated into the processor 710 or may be provided separately from the processor 710.
Memory 720 may also include a storage system 721, a cache 722, and RAM723. Wherein the cache 722 is a primary memory present between the RAM723 and the CPU, consisting of static memory chips (SRAM), with smaller capacity but much higher speed than main memory, approaching the speed of the CPU; RAM723 is an internal memory that exchanges data directly with the CPU, can be read and written at any time (except when refreshed), and is fast, typically as a temporary data storage medium for an operating system or other program in operation. The three combine to implement the memory 720 function.
As one implementation, the functionality of I/O interface 730 may be considered to be implemented by a transceiver circuit or a dedicated chip for transceiving. Processor 710 may be considered to be implemented by a dedicated processing chip, a processing circuit, a processor, or a general-purpose chip.
As another implementation manner, a manner of using a general purpose computer may be considered to implement the apparatus provided in the embodiments of the present application. I.e., program code that implements the functionality of processor 710, i/O interface 730 is stored in memory 720 and a general purpose processor implements the functionality of processor 710, i/O interface 730 by executing code in memory 720.
The concepts related to the technical solutions provided in the embodiments of the present application, explanation, detailed description and other steps related to the apparatus refer to the foregoing methods or descriptions of the contents of the method steps performed by the apparatus in other embodiments, which are not repeated herein.
As another implementation of this embodiment, a computer-readable storage medium is provided, on which instructions are stored, which when executed perform the method in the method embodiment described above.
As another implementation of this embodiment, a computer program product is provided that contains instructions that, when executed, perform the method of the method embodiment described above.
According to the method and apparatus provided in the embodiments of the present application, the embodiments of the present application further provide a system, the composition manner of which may be shown in fig. 4, and the executed method may be described in the embodiments shown in fig. 1 to 3, which are not repeated here.
Those skilled in the art will appreciate that only one memory and processor is shown in fig. 7 for ease of illustration. In an actual terminal or server, there may be multiple processors and memories. The memory may also be referred to as a storage medium or storage device, etc., and embodiments of the present application are not limited in this regard.
It should be appreciated that in embodiments of the present application, the processor may be a central processing unit (Central Processing Unit, CPU for short), other general purpose processor, digital signal processor (Digital Signal Processing, DSP for short), application specific integrated circuit (Application Specific Integrated Circuit, ASIC for short), off-the-shelf programmable gate array (Field-Programmable Gate Array, FPGA for short) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like.
It should also be understood that the memory referred to in the embodiments of the present application may be volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable ROM (Electrically EPROM, EEPROM), or a flash Memory. The volatile memory may be a random access memory (Random Access Memory, RAM for short) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (Double Data Rate SDRAM), enhanced SDRAM (ESDRAM), synchronous DRAM (SLDRAM), and direct memory bus RAM (Direct Rambus RAM, DR RAM).
Note that when the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, the memory (storage module) is integrated into the processor.
It should be noted that the memory described herein is intended to comprise, without being limited to, these and any other suitable types of memory.
The bus may include a power bus, a control bus, a status signal bus, and the like in addition to the data bus. But for clarity of illustration, the various buses are labeled as buses in the figures.
It should also be understood that the first, second, third, fourth, and various numerical numbers referred to herein are merely descriptive convenience and are not intended to limit the scope of the present application.
It should be understood that the term "and/or" is merely an association relationship describing the associated object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or by instructions in the form of software. The steps of a method disclosed in connection with the embodiments of the present application may be embodied directly in a hardware processor for execution, or in a combination of hardware and software modules in the processor for execution. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method. To avoid repetition, a detailed description is not provided herein.
In various embodiments of the present application, the sequence number of each process does not mean the sequence of execution, and the execution sequence of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.
Those of ordinary skill in the art will appreciate that the various illustrative logical blocks (illustrative logical block, abbreviated ILBs) and steps described in connection with the embodiments disclosed herein can be implemented in electronic hardware, or in combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.
In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, produces a flow or function in accordance with embodiments of the present application, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber line), or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid state disk), etc.
The present application also provides a computer storage medium storing a computer program that is executed by a processor to implement some or all of the steps of any one of the account management methods described in the method embodiments above.
Embodiments of the present application also provide a computer program product comprising a non-transitory computer-readable storage medium storing a computer program operable to cause a computer to perform some or all of the steps of any one of the account management methods described in the method embodiments above.
The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A method for screen display applied to a display driving chip, the method comprising the steps of:
the method comprises the steps of controlling to generate a first image layer and a second image layer, wherein the first image layer is used for displaying first image information corresponding to first display data regulated and controlled by a first controller, the second image layer is used for displaying second image information corresponding to second display data regulated and controlled by a second controller, the first image layer is positioned above the second image layer, the first display data is data with a safety level larger than a preset level, the first display data comprises at least one of storage battery and power generation system state image data, engine oil system state image data, engine state image data, fuel oil storage amount image data or vehicle speed image data, the second display data is data with a safety level smaller than the preset level and/or rendered data of the first display data, and the second display data comprises at least one of navigation map image data, rendered storage battery and power generation system state image data, rendered engine oil system state image data, rendered fuel oil state image data, rendered storage amount image data or rendered vehicle speed image data;
when the second controller cannot work normally, a first layer selection instruction sent by the first controller is received;
responding to a data extraction instruction sent by the first controller, acquiring first display data, and generating first image information according to the first display data;
and controlling the first layer to display the image and closing the second layer according to the first layer selection instruction.
2. The method of claim 1, further comprising the step of:
when the second controller can work normally, receiving a second layer selection instruction sent by the first controller;
and controlling the first layer and the second layer to display images according to the second layer selection instruction.
3. The method of claim 2, the controlling the first layer and the second layer for image display according to the second layer selection instruction, comprising:
responding to a data extraction instruction of the first controller, acquiring first display data, and generating first image information according to the first display data;
receiving second display data sent by the second controller, and generating second image information according to the second display data;
and displaying the first image information on the first image layer and the second image information on the second image layer.
4. The method of claim 1 or 2, further comprising:
and the first image information and the second image information are displayed in a superimposed manner.
5. A method of screen display applied to a first controller, the method comprising the steps of:
collecting working state data of a second controller;
judging whether the second controller can work normally or not according to the working state data;
when the second controller cannot work normally, a first layer selection instruction is sent to a display driving chip, the first layer selection instruction is used for indicating the display driving chip to control a first layer to display images and closing a second layer, the first layer is used for displaying first image information corresponding to first display data regulated by the first controller, the second layer is used for displaying second image information corresponding to second display data regulated by the second controller, the first layer is positioned above the second layer, the first display data is data with a safety level larger than a preset level, the first display data comprises at least one of storage battery and power generation system state image data, engine state image data, fuel storage amount image data or vehicle speed image data, the second display data is data with a safety level smaller than the preset level and/or data of the first display data, and the second display data comprises navigation map image data, post-and post-rendering image data of the engine state image, post-rendering image data of the engine state image data of the engine;
and sending a data extraction instruction to the display driving chip, wherein the data extraction instruction is used for instructing the display driving chip to acquire first display data, and the first display data comprises at least one of storage battery and power generation system state image data, engine oil system state image data, engine state image data, fuel stock image data or vehicle speed image data.
6. The method of claim 5, the collecting operational status data of the second controller, comprising:
sending a working state confirmation instruction to the second controller according to a preset time interval;
and receiving the working state feedback information of the second controller, and obtaining the working state data of the second controller according to the working state feedback information.
7. The method according to claim 5 or 6, further comprising the step of:
when the second controller can work normally, a second layer selection instruction is sent to the display driving chip, wherein the second layer selection instruction is used for indicating the display driving chip to control the first layer and the second layer to display images;
and sending a data extraction instruction to the display driving chip.
8. A vehicle-mounted terminal, characterized in that the vehicle-mounted terminal comprises: the display driving device comprises a display driving chip, a first controller, a second controller, a memory and a display screen;
the display driving chip is used for controlling the display screen to generate a first image layer and a second image layer, the first image layer is used for displaying first image information corresponding to first display data regulated and controlled by a first controller, the second image layer is used for displaying second image information corresponding to second display data regulated and controlled by a second controller, the first image layer is positioned above the second image layer, the first display data is data with a safety level greater than a preset level, the first display data comprises at least one of storage battery and power generation system state image data, engine oil system state image data, engine state image data, fuel oil stock image data or vehicle speed image data, the second display data is data with a safety level smaller than the preset level and/or rendered data of the first display data, and the second display data comprises navigation map image data, rendered storage battery and power generation system state image data, rendered engine oil system state image data, rendered engine state image data, rendered fuel oil stock image data or rendered vehicle speed image data;
the display driving chip is also used for receiving a first layer selection instruction sent by the first controller, controlling the first layer to display images and closing the second layer according to the first layer selection instruction;
the display driving chip is also used for receiving a data extraction instruction sent by the first controller, extracting first display data from the memory according to the data extraction instruction, and generating first image information according to the first display data;
the first controller is used for collecting working state data of the second controller, judging whether the second controller can work normally, sending a first layer selection instruction to the display driving chip, and sending a data extraction instruction to the display driving chip.
9. The in-vehicle terminal according to claim 8, further comprising:
the display driving chip is also used for receiving a second layer selection instruction sent by the first controller, controlling the first layer and the second layer to display images according to the second layer selection instruction, receiving second display data sent by the second controller, and generating second image information according to the second display data;
the first controller is further configured to send the second layer selection instruction to the display driving chip, send a working state confirmation instruction to the second controller, receive working state feedback information sent by the second controller, and obtain the working state data of the second controller according to the working state feedback information;
the second controller is used for sending second display data to the display driving chip, receiving the working state confirmation instruction sent by the first controller and sending the working state feedback information to the first controller;
the display screen is used for displaying the first image information on a first image layer and displaying the second image information on a second image layer.
10. A computer-readable storage medium, comprising:
the computer readable storage medium having instructions stored therein which, when run on a computer, implement the method of any of claims 1-4 and/or claims 5-7.
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| CN202111300345.5A CN116069279B (en) | 2021-11-04 | 2021-11-04 | Screen display method and vehicle-mounted terminal |
| PCT/CN2021/140387 WO2023077635A1 (en) | 2021-11-04 | 2021-12-22 | Screen display method and vehicle-mounted terminal |
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