CN117395133A - Screen self-repairing system, method, medium and electronic equipment - Google Patents

Abstract

This application provides a screen self-repairing system, method, medium and electronic device. The system includes a display device and a cabin domain control device; the display device includes a deserializer configured to receive display information for display by the display device; the cabin domain control device includes a serializer, so The serializer is communicatively connected to the deserializer, and the cockpit domain control device is configured to: in response to obtaining abnormal feedback information from the serializer, configure the serializer and the deserializer within a preset number of initializations. The communication link of the device repeatedly sends an initialization signal until the communication link resumes normal communication. Therefore, when a problem occurs in the communication link, the communication link can be restored to normal communication in a short period of time, ensuring that the display device can resume displaying normal information in a short period of time, and avoiding hidden dangers to safe driving of the vehicle caused by abnormal display.

Description

A screen self-repairing system, method, medium and electronic device

Technical field

The present application relates to the field of computer technology, and specifically to a screen self-repairing system, method, medium and electronic device.

Background technique

With the development of smart devices, screen displays have become an indispensable part. Especially in the field of automotive smart cockpits, screens play an increasingly important role. Some smart cockpit systems now have developed to five screens. This 5-joint screen includes the instrument screen, central control screen, co-pilot screen, and two rear passenger seat screens.

Therefore, the screen functional safety system has become an important part of the vehicle intelligent cockpit system. Once the screen fails or becomes abnormal during driving and use of the car, it can easily cause safety hazards to the vehicle.

Therefore, this application provides a screen self-repairing system to solve the above technical problems.

Contents of the invention

The purpose of this application is to provide a screen self-repairing system, method, medium and electronic device that can solve at least one of the above-mentioned technical problems. The specific plans are as follows:

According to the specific implementation manner of the present application, in the first aspect, the present application provides a screen self-repairing system, including: a display device and a cockpit domain control device;

A display device including a deserializer configured to receive display information for display by the display device;

The cockpit domain control device includes a serializer. The serializer is communicatively connected with the deserializer. The cockpit domain control device is configured to: in response to obtaining abnormal feedback information from the serializer, when the number of consecutive initializations is less than or When equal to the preset number of initializations, an initialization signal is repeatedly sent to the communication link between the serializer and the deserializer until the communication link resumes normal communication, wherein the number of consecutive initializations refers to the communication link. The cumulative number of times the link continuously sends initialization signals.

Optionally, the cockpit domain control device also includes processing components and on-chip components;

The processing component is respectively communicatively connected to the on-chip component and the serializer, and is configured to: in response to obtaining abnormal feedback information from the serializer, send a repair link signal to the on-chip component;

The on-chip component is communicatively connected to the serializer and is configured to: in response to receiving the repair link signal, when the number of consecutive initializations is less than or equal to the preset number of initializations, repeat the communication link Send an initialization signal until the communication link resumes normal communication.

Optionally, the on-chip component is configured to repeatedly send an initialization signal to the communication link until the communication link resumes normal communication when the number of consecutive initializations is less than or equal to the preset number of initializations, including:

When the number of consecutive initializations is less than or equal to the preset number of initializations, each time an initialization signal is sent to the communication link, it is determined whether to obtain a handshake signal returned by the display device based on the initialization signal;

When the handshake signal is acquired, sending an initialization signal to the communication link is stopped.

Optionally, the on-chip component is configured to, after determining whether to obtain the handshake signal returned by the display device based on the initialization signal, further include: when the handshake signal returned by the display device based on the initialization signal is not obtained. , the number of consecutive initializations of the communication link is increased by one.

Optionally, the on-chip component is further configured to: in response to receiving the repair link signal, when the number of consecutive initializations of the communication link is greater than the preset number of initializations, send a repair failure signal to the processing component;

The processing component is further configured to: in response to receiving the repair failure signal sent by the on-chip component, send a reset signal of the on-chip component to the on-chip component, triggering the on-chip component to reset, so as to restore the on-chip component. Normal communication of the communication link.

Optionally, the on-chip component is further configured to: after acquiring the handshake signal, periodically request the display device to return the display information of the current screen and the first verification information of the display information; based on the current screen The pre-stored display information generates second verification information; when the second verification information is not equal to the first verification information, the pre-stored display information of the current screen is re-sent.

Optionally, the abnormality feedback information includes an abnormal interrupt signal or abnormality information of the communication link.

According to the specific implementation mode of the present application, in the second aspect, the present application provides a screen self-repairing method, including:

Obtain abnormal feedback information from the serializer of the cockpit domain control device;

In response to obtaining abnormal feedback information from the serializer of the cockpit domain control device, when the number of consecutive initializations is less than or equal to the preset number of initializations, an initialization signal is repeatedly sent to the communication link between the serializer and the deserializer of the display device. , until the communication link resumes normal communication, wherein the number of consecutive initializations refers to the cumulative number of times initialization signals are continuously sent to the communication link.

According to specific embodiments of the present application, in a third aspect, the present application provides a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, the screen self-repairing method as described in any one of the above items is implemented.

According to a specific embodiment of the present application, in a fourth aspect, the present application provides an electronic device, including: one or more processors; a storage device for storing one or more programs. When the one or more programs are When the one or more processors execute, the one or more processors implement the screen self-repairing method as described in any one of the above items.

Compared with the prior art, the above solutions of the embodiments of the present application have at least the following beneficial effects:

This application provides a screen self-repairing system, method, medium and electronic device. The system includes a display device and a cockpit domain control device; the display device includes a deserializer configured to receive display information for display by the display device; the cockpit domain control device includes a serializer, so The serializer is communicatively connected to the deserializer, and the cockpit domain control device is configured to: in response to obtaining abnormal feedback information from the serializer, configure the serializer and the deserializer within a preset number of initializations. The communication link of the device repeatedly sends an initialization signal until the communication link resumes normal communication. Therefore, when a problem occurs in the communication link, the communication link can be restored to normal communication in a short period of time, ensuring that the display device can resume displaying normal information in a short period of time, and avoiding hidden dangers to safe driving of the vehicle caused by abnormal display.

Description of the drawings

Figure 1 shows a schematic diagram of a screen self-repairing system according to an embodiment of the present application;

Figure 2 shows another schematic diagram of a screen self-repairing system according to an embodiment of the present application;

Figure 3 shows a flow chart of a screen self-repairing method according to an embodiment of the present application.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be described in further detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this application.

The terminology used in the embodiments of the present application is only for the purpose of describing specific embodiments and is not intended to limit the present application. As used in the embodiments and the appended claims, the singular forms "a," "the" and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. Usually contains at least two kinds.

It should be understood that the term "and/or" used in this article is only an association relationship describing related objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, and A and A exist simultaneously. B, there are three situations of B alone. In addition, the character "/" in this article generally indicates that the related objects are an "or" relationship.

It should be understood that although the terms first, second, third, etc. may be used to describe the embodiments of the present application, these descriptions should not be limited to these terms. These terms are only used to distinguish descriptions. For example, without departing from the scope of the embodiments of the present application, the first may also be called the second, and similarly, the second may also be called the first.

Depending on the context, the words "if" or "if" as used herein may be interpreted as "when" or "when" or "in response to determination" or "in response to detection." Similarly, depending on the context, the phrase "if determined" or "if (stated condition or event) is detected" may be interpreted as "when determined" or "in response to determining" or "when (stated condition or event) is detected )" or "in response to detecting (a stated condition or event)".

It should also be noted that the terms "comprises", "comprises" or any other variation thereof are intended to cover a non-exclusive inclusion, such that a good or apparatus including a list of elements includes not only those elements but also those not expressly listed other elements, or elements inherent to such goods or devices. Without further limitation, an element defined by the statement "comprises a..." does not exclude the presence of other identical elements in the goods or devices including the stated element.

It should be noted that the symbols and/or numbers present in the description are not reference signs if they are not marked in the description of the drawings.

Optional embodiments of the present application are described in detail below with reference to the accompanying drawings.

The embodiment provided in this application is an embodiment of a screen self-repairing system.

The embodiment of the present application will be described in detail below with reference to FIG. 1 .

The embodiment of the present application provides a screen self-repairing system, including a display device and a cockpit domain control device.

A display device includes a deserializer configured to receive display information for display by the display device.

The display system of a vehicle includes multiple display devices (for example, a central control display device, an instrument display device). Since the distance between each display device and the cockpit domain control device is different, in order to ensure that the display information can be effectively displayed on the display screen of the display device and solve the impact of long distance on the display effect, each display device includes: a deserializer and Display processor and display. The display processor is communicated with the deserializer and the display screen respectively, as shown in Figure 2. The display analog signal transmitted by the coaxial cable or twisted pair is converted by the deserializer and transmitted to the display processor, and the display processor converts the number of digital signals displayed on the display screen into a display driving signal, which is displayed by the display screen.

The cockpit domain control device includes a serializer. The serializer is communicatively connected with the deserializer. The cockpit domain control device is configured to: in response to obtaining abnormal feedback information from the serializer, when the number of consecutive initializations is less than or When equal to the preset number of initializations, an initialization signal is repeatedly sent to the communication link between the serializer and the deserializer until the communication link resumes normal communication.

Wherein, the number of consecutive initializations refers to the cumulative number of times an initialization signal is continuously sent to the communication link.

In the embodiment of the present application, the serializer and the deserializer appear in pairs, and the deserializer of each display device has a corresponding serializer in the cockpit domain control device.

The serializer is configured to convert display information into display analog signals and transmit them to the deserializer via coaxial cable or twisted pair.

Cockpit domain control device (full name in English is Cockpit Space Center, referred to as CSC). CSC connects various types of display devices in the vehicle to display various alarm information and entertainment information. CSC is one of the four core controllers of automobiles and is required for all models. CSC realizes the decoupling of software and hardware. As the control brain of display and audio-visual systems, it supports multi-screen drivers, sensor data collection, big data, energy management, data management, gateway, diagnosis, over-the-air download technology and other services, and cooperates with other computing platforms. Complete the work of display interaction requirements and create an industry-leading central computing platform for cockpit intelligence.

Abnormal feedback information refers to the abnormal information fed back by the communication link between the serializer and the deserializer. The cockpit domain control device detects abnormal information of the communication link by monitoring the operating status of the communication link.

Once the cockpit domain control device in the embodiment of the present application detects abnormal feedback information, when the number of consecutive initializations is less than or equal to the preset number of initializations, it will repeatedly send an initialization signal to the communication link until the communication link returns to normal. communication. Therefore, when a problem occurs in the communication link, the communication link can resume normal communication in a short period of time, ensuring that the display device can resume displaying normal information in a short period of time.

In some specific embodiments, the cockpit domain control device also includes processing components and on-chip components, as shown in Figure 2 .

Processing components (for example, microcontroller unit (English full name Microcontroller Unit, referred to as MCU)). A processing component is a special-purpose integrated circuit that typically contains functions such as a processor core, memory, input/output interfaces, and timers. Processing components are usually used to control small embedded systems, such as sensors, actuators, switches, etc. in automobiles, as well as some simple computing and control tasks. The processing component consumes less power and is suitable for real-time control and embedded applications. In a car, processing components might be used to control simpler functions such as door locks, windows, lights, etc.

The processing component is communicatively connected to the on-chip component and the serializer respectively, and is configured to: in response to obtaining abnormal feedback information from the serializer, send a repair link signal to the on-chip component.

In some specific embodiments, the abnormal feedback information includes an abnormal interrupt signal or abnormal information of the communication link.

For example, the error signal (such as ERRPIN) pin of the serializer is connected to the first interrupt (such as INT1) pin of the processing component. When the communication link between the serializer and the deserializer is abnormal, the serializer passes the The connection can send an abnormal interrupt signal to the processing component; alternatively, the processing component obtains the detailed communication link between the serializer and the deserializer from the serializer through the first bidirectional two-wire synchronous serial bus (i.e., the first I2C bus) exception information.

Bidirectional two-wire synchronous serial bus (English full name Inter-Integrated Circuit, referred to as I2C), a serial communication protocol, usually used to connect the host and peripherals, such as screens. It can transmit low-speed data such as configuration settings, control commands, etc.

The Serial Peripheral Interface (full name in English, SPI for short) is a synchronous serial peripheral interface that allows the MCU to communicate with various peripheral devices in a serial manner to exchange information. Moreover, only four wires are occupied on the chip pins, which saves the chip pins, and at the same time saves space in the circuit layout and provides convenience.

For example, the processing component communicates with the on-chip component through SPI. After the processing component obtains the abnormal feedback information, it sends a repair link signal to the on-chip component through SPI.

On-chip components (English full name System on Chip, referred to as SOC), SOC is responsible for entertainment domain-related functions. SOC runs QNX real-time operating system and Android/Linux virtual machine system. The operating system running on SOC can meet the functional requirements of the entertainment domain, such as phone calls, media playback, map positioning, media editing, vehicle settings, reversing images and driving records, etc. Function.

The on-chip component is communicatively connected to the serializer and is configured to: in response to receiving the repair link signal, when the number of consecutive initializations is less than or equal to the preset number of initializations, repeat the communication link Send an initialization signal until the communication link resumes normal communication.

For example, the on-chip component repeatedly sends an initialization signal to the communication link through the second I2C bus.

In some specific embodiments, the on-chip component is configured to repeatedly send an initialization signal to the communication link when the number of consecutive initializations is less than or equal to a preset number of initializations until the communication link resumes normal communication. , including: when the number of consecutive initializations is less than or equal to the preset number of initializations, each time an initialization signal is sent to the communication link, determining whether to obtain a handshake signal returned by the display device based on the initialization signal; when obtaining When the handshake signal is received, stop sending the initialization signal to the communication link.

For example, after the on-chip component sends an initialization signal to the communication link, it waits for the serializer to return the handshake signal to the second interrupt (such as INT2) pin of the on-chip component. If the INT2 pin of the on-chip component obtains the handshake signal, the communication link is determined. If the communication link is successfully initialized, the communication link returns to normal, and the initialization signal is stopped being sent to the communication link.

In some specific embodiments, the on-chip component is configured to, after determining whether to obtain the handshake signal returned by the display device based on the initialization signal, further include: when the handshake signal returned by the display device based on the initialization signal is not obtained. During the handshake signal, the number of consecutive initializations of the communication link is increased by one.

The number of consecutive initializations can be understood as the cumulative number of initialization signals sent to the communication link each time after the repair link signal is obtained and before the communication link resumes normal communication. When the initialization signal sent by the on-chip component is interrupted, it indicates that the communication link resumes normal communication. As long as the initialization signal is continuously sent, it indicates that the communication link has not resumed normal communication. Before each initialization signal is sent, the number of consecutive initializations is increased by one. The initial value for the number of consecutive initializations is zero.

For example, the default number of initializations is 3, and the number of consecutive initializations of the communication link is zero; if the INT2 pin of the on-chip component does not receive a handshake signal after the on-chip component sends an initialization signal for the first time, it is determined that the communication link initialization failed and the communication The link is still abnormal, and the number of continuous initializations of the communication link is increased by one, that is, the number of continuous initializations of the communication link is 1; if the INT2 pin of the on-chip component has not received the handshake signal after the on-chip component sends the initialization signal for the second time, then It is determined that the communication link initialization failed and the communication link is still abnormal. The number of continuous initializations of the communication link is increased by one, that is, the number of continuous initializations of the communication link is 2; if the on-chip component sends an initialization signal for the third time, the INT2 pipe of the on-chip component If the handshake signal has not been obtained, it is determined that the communication link initialization failed and the communication link is still abnormal. The number of continuous initializations of the communication link is increased by one, that is, the number of continuous initializations of the communication link is 3; if the number of continuous initializations of the communication link is is greater than the preset number of initializations, stop sending initialization signals to the communication link; if the INT2 pin of the on-chip component obtains a handshake signal after the on-chip component sends an initialization signal for the third time, it is determined that the communication link is successfully initialized and the communication link Return to normal and stop sending initialization signals to the communication link.

In some specific embodiments, the on-chip component is further configured to: in response to receiving the repair link signal, when the number of consecutive initializations of the communication link is greater than a preset number of initializations, send a repair to the processing component Failure signal.

The processing component is further configured to: in response to receiving the repair failure signal sent by the on-chip component, send a reset signal of the on-chip component to the on-chip component, triggering the on-chip component to reset, so as to restore the on-chip component. Normal communication of the communication link.

In this specific embodiment, when the communication link between the serializer and the deserializer cannot be repaired by initializing the communication link, the on-chip component notifies the processing component of the repair failure signal. For example, the on-chip component notifies the processing component of the repair failure signal through SPI.

The processing component sends a reset signal to the on-chip component based on the repair failure signal to reset the on-chip component to restore normal communication of the communication link.

In some specific embodiments, the on-chip component is further configured to: after acquiring the handshake signal, periodically request the display device to return the display information of the current screen and the first verification information of the display information; based on the The pre-stored display information of the current screen generates second verification information; when the second verification information is not equal to the first verification information, the pre-stored display information of the current screen is re-sent.

In this specific embodiment, obtaining the handshake signal can determine that the communication link is successfully initialized and the communication link returns to normal. Then verify whether the displayed information on the current screen is normal. The on-chip component periodically sends screen diagnostic requests to the display processor of the display device. The display processor obtains display information from the current screen and generates first verification information of the current screen display information based on preset verification rules. The display processor packages and transmits the display information of the current screen and the first verification information of the display information to the on-chip component. For example, if the display information on the current screen is abnormal, the generated first verification information is also abnormal; if the display information on the current screen is normal, the generated first verification information is also normal.

The on-chip component pre-saves the normal display information of the current screen (ie, the pre-stored display information), and generates the second verification information of the pre-stored display information based on the preset verification rules. By comparing the second verification information with the first verification information, it is determined whether the current screen is displayed normally. If the second verification information is not equal to the first verification information, the current screen display is abnormal, and the pre-stored display information of the current screen is resent to restore the current screen to normal display; if the second verification information is equal to the first verification information , then the current screen displays normally.

This specific embodiment uses on-chip components to periodically verify the display information on the current screen, ensuring the correctness of the information displayed on the current screen. Avoid display abnormalities that may cause safety hazards to the vehicle.

This application also provides method embodiments that inherit the above embodiments and are used to implement the operation of the system described in the above embodiments. The explanations based on the same meanings of the names are the same as the above embodiments and have the same technical effects as the above embodiments. No further details will be given.

As shown in Figure 3, this application provides a screen self-repair method, including:

Step S301, obtain abnormal feedback information from the serializer of the cockpit domain control device;

Step S302, in response to obtaining abnormal feedback information from the serializer of the cockpit domain control device, when the number of consecutive initializations is less than or equal to the preset number of initializations, repeat the communication link between the serializer and the deserializer of the display device. An initialization signal is sent until the communication link resumes normal communication, where the number of consecutive initializations refers to the cumulative number of times initialization signals are continuously sent to the communication link.

The embodiment of the present application obtains abnormal feedback information from the serializer of the cockpit domain control device; in response to obtaining abnormal feedback information from the serializer of the cockpit domain control device, when the number of consecutive initializations is less than or equal to the preset number of initializations, the The communication link between the serializer and the deserializer of the display device repeatedly sends an initialization signal until the communication link resumes normal communication, so that when a problem occurs in the communication link, the communication link can return to normal in a short period of time. communication to ensure that the display device can resume displaying normal information in a short period of time. Avoid display abnormalities that may cause safety hazards to the vehicle.

This embodiment provides an electronic device. The electronic device includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores information that can be executed by the one processor. instructions, which are executed by the at least one processor, so that the at least one processor can perform the method steps described in the above embodiments.

Embodiments of the present application provide a non-volatile computer storage medium that stores computer-executable instructions, and the computer-executable instructions can execute the method steps described in the above embodiments.

Finally, it should be noted that each embodiment in this specification is described in a progressive manner. Each embodiment focuses on its differences from other embodiments. The same and similar parts between various embodiments can be referred to each other.

The above embodiments are only used to illustrate the technical solution of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still make changes to the foregoing embodiments. Modifications may be made to the recorded technical solutions, or equivalent substitutions may be made to some of the technical features; however, these modifications or substitutions shall not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims (10)

1. A screen self-healing system, comprising:

a display device including a deserializer configured to receive display information for display by the display device;

the cabin area control device comprises a serializer which is in communication connection with the deserializer, and the cabin area control device is configured to: and in response to the abnormal feedback information obtained from the serializer, repeatedly sending an initialization signal to the communication link of the serializer and the deserializer when the continuous initialization frequency is less than or equal to the preset initialization frequency until the communication link resumes normal communication, wherein the continuous initialization frequency refers to the accumulated frequency of continuously sending the initialization signal to the communication link.

2. The system of claim 1, wherein the cabin control device further comprises a processing component and an on-chip component;

the processing component is in communication connection with the on-chip component and the serializer respectively and is configured to: transmitting a repair link signal to the on-chip component in response to obtaining abnormal feedback information from the serializer;

the on-chip component, which is in communication connection with the serializer, is configured to: and in response to receiving the repair link signal, repeatedly sending an initialization signal to the communication link when the continuous initialization times are less than or equal to preset initialization times until the communication link resumes normal communication.

3. The system of claim 2, wherein the on-chip component is configured to repeatedly send an initialization signal to the communication link when the number of consecutive initializations is less than or equal to a preset number of initializations until the communication link resumes normal communication, comprising:

when the continuous initialization times are smaller than or equal to preset initialization times, judging whether to acquire handshake signals returned by the display device based on the initialization signals after sending the initialization signals to the communication link each time;

when the handshake signal is acquired, sending of an initialization signal to the communication link is stopped.

4. The system of claim 3, wherein the on-chip component configured to determine whether to obtain a handshake signal returned by the display device based on the initialization signal further comprises: when the handshake signal returned by the display device based on the initialization signal is not acquired, the continuous initialization number of the communication link is increased by one.

5. The system of claim 4, wherein the system further comprises a controller configured to control the controller,

the on-chip component is further configured to: in response to receiving the repair link signal, when the number of continuous initializations of the communication link is greater than a preset number of initializations, sending a repair failure signal to the processing component;

the processing component is further configured to: and in response to receiving the repair failure signal sent by the on-chip component, sending a reset signal of the on-chip component to the on-chip component, and triggering the on-chip component to reset so as to restore normal communication of the communication link.

6. The system of claim 3, wherein the on-chip component is further configured to: after the handshake signals are acquired, periodically requesting the display device to return display information of a current screen and first check information of the display information; generating second check-up information based on pre-stored display information of the current screen; and retransmitting pre-stored display information of the current screen when the second check information is not equal to the first check information.

7. The system of any of claims 1-6, wherein the anomaly feedback information comprises an abort signal or anomaly information for the communication link.

8. A screen self-repairing method applied to the system of any one of claims 1-7, comprising:

acquiring abnormal feedback information from a serializer of a cabin domain control device;

in response to obtaining abnormal feedback information from a serializer of a cabin domain control device, repeatedly sending an initialization signal to a communication link of the serializer and a deserializer of a display device when the continuous initialization frequency is less than or equal to a preset initialization frequency, until the communication link resumes normal communication, wherein the continuous initialization frequency is the accumulated frequency of continuously sending the initialization signal to the communication link.

9. A computer readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, implements the method according to claim 8.

10. An electronic device, comprising:

one or more processors;

storage means for storing one or more programs,

wherein the one or more processors implement the method of claim 8 when the one or more programs are executed by the one or more processors.