CN117676157A

CN117676157A - Identification method and device of display equipment, medium, display system and vehicle

Info

Publication number: CN117676157A
Application number: CN202211035682.0A
Authority: CN
Inventors: 史琳; 范志富; 龚少波; 苏凯
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2022-08-26
Filing date: 2022-08-26
Publication date: 2024-03-08

Abstract

The disclosure relates to a display device identification method, a device, a medium, a display system and a vehicle, so as to improve system starting efficiency. The device comprises a controller, a display device and a storage device, wherein the controller is connected with at least one display device, and a memory for storing device codes of the display devices is arranged in each display device; the method comprises the following steps: establishing a communication connection with a target display device to be identified, the target display device being one of the at least one display device; after the communication connection is successfully established, accessing a memory of the target display device through a target memory address so as to read a device code stored in the memory; and determining the model of the target display device according to the read device code.

Description

Identification method and device of display equipment, medium, display system and vehicle

Technical Field

The disclosure relates to the field of display, and in particular relates to a method and a device for identifying display equipment, a medium, a display system and a vehicle.

Background

With the development of vehicles, display devices (for example, a central control display screen, an instrument screen, etc.) on the vehicles are gradually increased, and a cabin controller on the vehicle needs to identify each display device to load a driver corresponding to a display device of a different model, so that each display device can normally display. In the related art, different display devices are generally distinguished by I2C (Inter-Integrated Circuit) bus addresses of the display devices, but in this manner, the available number of I2C bus addresses is limited, which cannot cope with increasing demands of vehicle display devices, and when determining the model of the display device, the I2C bus addresses need to be traversed one by one until successful communication with the display device is performed, and thus, there is a problem of inefficiency.

Disclosure of Invention

The disclosure aims to provide a method, a device, a medium, a display system and a vehicle for identifying display equipment so as to improve system starting efficiency.

In order to achieve the above object, according to a first aspect of the present disclosure, there is provided a method for identifying display devices, applied to a controller to which at least one display device is connected, each of the display devices being provided therein with a memory for storing device codes of the display devices; the method comprises the following steps:

establishing a communication connection with a target display device to be identified, the target display device being one of the at least one display device;

after the communication connection is successfully established, accessing a memory of the target display device through a target memory address so as to read a device code stored in the memory;

and determining the model of the target display device according to the read device code.

Optionally, the at least two display devices are connected to the controller through different bus interfaces, the different bus interfaces correspond to different preset memory addresses, and the memory of the target display device is accessed through the target memory address to read the device code stored in the memory, including:

Determining a target memory address corresponding to a target bus interface from a plurality of preset memory addresses, wherein the target display device is connected with the controller through the target bus interface, and the address of a memory in the target display device is configured as the target memory address;

and accessing a memory of the target display device according to the target memory address to read the device code in the memory.

Optionally, the number of the display devices is at least two, each display device is connected with the controller through different bus interfaces, and the address of the memory in each display device is the preset target memory address.

Optionally, after the accessing the memory of the target display device through the target memory address to read the device code stored in the memory, if the device code is not read, the method further includes:

determining a target component address from a plurality of preset component addresses;

attempting to access a target component of the target display device according to the target component address to read data in the target component;

if the data reading fails, re-determining a target component address from the plurality of preset component addresses, and attempting to access the target component according to the re-determined target component address;

And if the data is successfully read, taking the equipment model corresponding to the target component address as the model of the target display equipment.

Optionally, the determining the model of the target display device according to the read device code includes:

acquiring a corresponding relation between equipment codes and equipment models;

and determining the equipment model corresponding to the read equipment code according to the corresponding relation, and taking the equipment model as the model of the target display equipment.

Optionally, the device is encoded as a string of a plurality of substrings, wherein the substrings include a first substring for characterizing a device model and at least one second substring associated with a device attribute;

the determining the model of the target display device according to the read device code comprises the following steps:

extracting a first substring from the read device code;

and determining the equipment model represented by the extracted first substring as the model of the target display equipment.

Optionally, the method further comprises:

and loading a driving program matched with the model of the target display equipment according to the determined model of the target display equipment so as to enable the target display equipment to work normally.

According to a second aspect of the present disclosure, there is provided an identification apparatus of a display device, including:

a memory having a computer program stored thereon;

a processor for executing the computer program in the memory to implement the steps of the method of the first aspect of the disclosure.

According to a third aspect of the present disclosure there is provided a non-transitory computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of the method of the first aspect of the present disclosure.

According to a fourth aspect of the present disclosure, there is provided a display system comprising:

at least one display device, each of which is provided with a memory for storing device codes of the display device;

and the controller is connected with the display equipment and is used for accessing the memory of the target display equipment through a target memory address after the communication connection is successfully established with the target display equipment so as to read equipment codes in the memory, and determining the model of the target display equipment according to the read equipment codes, wherein the target display equipment is one of the at least one display equipment.

Optionally, at least two display devices are provided, each display device is connected to the controller through different bus interfaces, and the different bus interfaces correspond to different preset memory addresses;

the controller is used for determining a target memory address corresponding to a target bus interface from a plurality of preset memory addresses, and accessing a memory of the target display device according to the target memory address to read the device code in the memory, wherein the target display device is connected with the controller through the target bus interface, and the address of the memory in the target display device is configured as the target memory address.

Optionally, at least two display devices are provided, each display device is connected to the controller through a different bus, and an address of a memory in each display device is a preset target memory address.

Optionally, the controller is further configured to:

determining a target component address from a plurality of preset component addresses under the condition that the equipment code is not read; attempting to access a target component of the display device according to the target component address to read data in the target component; if the data reading fails, re-determining a target component address from the plurality of preset component addresses, and attempting to access the target component according to the re-determined target component address; and if the data is successfully read, taking the equipment model corresponding to the target component address as the model of the target display equipment.

Optionally, a video deserializer connected with a memory of the target display device is arranged in the target display device;

the controller is internally provided with a video serializer connected with the video deserializer, and the video serializer establishes communication connection with the video deserializer through a preset communication protocol so as to enable the controller to establish communication connection with the target display equipment.

Optionally, the memory and the video deserializer within the target display device have mutually matched communication interfaces.

Optionally, a memory within the target display device and the video deserializer are connected through an I2C interface.

According to a fifth aspect of the present disclosure there is provided a vehicle comprising the display system provided by the fourth aspect of the present disclosure.

According to the technical scheme, the memory for storing the equipment codes of the display equipment is newly added in each display equipment connected with the controller, communication connection is established with the target display equipment to be identified, after the communication connection is successfully established, the memory of the target display equipment is accessed through the target memory address so as to read the equipment codes stored in the memory, and then the model of the target display equipment is determined according to the read equipment codes. Therefore, the memory for storing the device codes is newly added in the display device, and when the system is started, the device codes are only needed to be acquired from the target memory addresses without traversing all the memory addresses, so that the time for traversing the memory addresses is saved, and meanwhile, the model of the display device can be quickly identified through the device codes stored in the memory of the display device, so that the time spent for starting the system is reduced, and the starting efficiency is improved.

Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification, illustrate the disclosure and together with the description serve to explain, but do not limit the disclosure. In the drawings:

FIG. 1 is a flow chart of a method of identifying a display device provided in accordance with one embodiment of the present disclosure;

FIG. 2 is a block diagram of an electronic device, shown in accordance with an exemplary embodiment;

fig. 3 is an exemplary block diagram of a display system provided in accordance with one embodiment of the present disclosure.

Detailed Description

Specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the disclosure, are not intended to limit the disclosure.

It should be noted that, all actions for acquiring signals, information or data in the present disclosure are performed under the condition of conforming to the corresponding data protection rule policy of the country of the location and obtaining the authorization given by the owner of the corresponding device.

As described in the background art, the cabin domain controller needs to identify each display device to load a corresponding driver, so as to ensure the normal operation of the display device. In the related art, identification for different display devices is achieved through the I2C bus address of the display device. In general, since each display device has a difference between each display device due to a difference in characteristics of a respective manufacturer, model, etc., I2C bus addresses of each display device cannot be repeated in order to accurately distinguish and identify each display device, i.e., each display device should have a unique I2C bus address for model identification. However, the I2C bus address is a 7-bit (7-bit) address, and the number of addresses is limited, so that 128 devices can be distinguished at most, but currently, with the development of vehicles, the number of display devices on the vehicles is increased, and the number of the existing I2C bus addresses cannot meet the increasing demands of the vehicle display devices; meanwhile, in the above manner, when a display device is newly added to the vehicle and an I2C bus address thereof is determined, it is required to repeatedly confirm whether the I2C bus address of the new display device collides with the used I2C bus address, which results in an increase in workload of related staff and a possible occurrence of a situation that no address is available.

In addition, in the scheme of realizing the identification of different display devices through the I2C bus address of the display device, after the cabin domain controller system is started, the I2C bus address of the display device needs to be traversed, that is, the I2C bus addresses of the display devices are tried to be communicated one by one until the address communication is successful, and then the corresponding display device model is found out through the address lookup table of the successful communication, so as to confirm the driver to be loaded, wherein when a certain I2C bus address is used for communication, a register of the display device is read, and if data can be read, the communication is successful. In such a way, the type of the display equipment can be determined after the I2C bus addresses are traversed and address communication is successful, so that time is very consumed, meanwhile, the time consumption problem is more and more serious along with the increase of the display equipment, and the starting speed of the system is further dragged, so that the starting efficiency is reduced.

In order to solve the technical problems, the present disclosure provides a method, a device, a medium, a display system and a vehicle for identifying a display device, so as to improve the system starting efficiency.

Fig. 1 is a flowchart of a method of identifying a display device provided according to one embodiment of the present disclosure. The above-described method provided by the present disclosure may be applied to a controller, for example, a cabin controller of a vehicle. The controller may have at least one display device connected thereto, and each display device may have a memory disposed therein for storing device codes of the display device.

By way of example, the display device may include, but is not limited to, the following:

a central control display screen, an instrument display screen, a secondary driving display screen, a HUD (head-up display), a rearview mirror display screen, a headrest display screen and the like.

A memory may be provided in each display device, and for example, the memory may be an EEPROM (Electrically Erasable Programmable read only memory ), which is a memory chip that does not lose data after power failure.

In one possible embodiment, a display device may include a video deserializer, a display device, and the memory described above. The memory may be connected to the video deserializer, and the memory and the video deserializer may have the same communication interface, and are connected through the communication interface. For example, if the communication interface of the video deserializer is an I2C bus interface, the data interface of the memory may also be set as an I2C bus interface. When the display device works, the video deserializer can demodulate the received video signal into a signal form which can be processed by the display device, and output the demodulated signal to the display device. By way of example, the display device may be an LCD (Liquid Crystal Display ) or a projection DLP (Digital Light Processing, digital light processing) device or the like. For another example, the signal form that the display device can process may be LVDS (Low Voltage Differential Signaling ), eDP (Embedded DisplayPort, fully digital interface based on DisplayPort architecture and protocol), and the like. In addition, the display device may also be provided with the same communication interface as the video deserializer and connected to the video deserializer.

The memory of the display device may have stored therein a device code of the display device. The device code of the display device is used to uniquely identify the display device and may reflect the model of the display device. And, the model of the display device is used for determining the corresponding driver of the display device. The device code may be directly burned into the memory of the display device during the display device generation process.

It should be noted that the memory is not limited in memory capacity by distinguishing between different display devices in the manner of encoding the memory, for example, if only 2byte (i.e., 16 bit) memory devices are used in the memory, 65536 (i.e., 2 ¹⁶ ) The number of devices is not increased, so that the problem of device conflict is solved from the source.

As shown in fig. 1, the identification manner of the display device provided in the present disclosure may include the following steps 11 to 13.

In step 11, a communication connection is established with the target display device to be identified.

Wherein the target display device is one of the at least one display device. In practical application, each display device in the vehicle can be respectively used as a target display device, and the identification method of the display device provided by the disclosure is executed, so that the identification of all the display devices in the vehicle can be realized.

In a possible implementation manner, the target display device may further include a video deserializer, and accordingly, the step 11 may include the steps of:

and establishing communication connection with a video deserializer of the target display device through a preset communication protocol.

That is, a communication connection may be established with the target display device by establishing a communication connection with the video deserializer of the target display device. As described above, the video deserializer of the target display device may be connected to its memory. For example, a video serializer and a video deserializer of the target display device may be provided in the cabin controller, and the video serializer and the video deserializer may be connected through a cable, and a preset communication protocol may be provided for the video serializer and the video deserializer, and connection between the video serializer and the video deserializer may be established based on the communication protocol, so as to establish a communication connection between the cabin controller and the target display device. The preset communication protocol may be GMSL (Gigabit Multimedia Serial Link, serial transmission interface standard for vehicles), FPD-Link (Flat panel display Link, flat panel display Link connection protocol, etc., for example.

In step 12, after the communication connection is successfully established, the memory of the target display device is accessed via the target memory address to read the device code stored in the memory.

In one possible embodiment, the display devices are at least two, and each display device is connected to the controller through a different bus interface, and the different bus interfaces correspond to different preset memory addresses.

Alternatively, each bus interface may be configured to be specifically connected to one type of display device, and for different types of display devices of the same type that may be connected to the controller, the corresponding memory addresses may be set to the preset memory addresses of the corresponding bus interfaces, and in actual application, only one type of display device of the one type of display device may be connected to the controller through the bus interface. For example, if the bus interface a is set to connect with the central control display screen and the bus interface B is set to connect with the instrument display screen, for all types of central control display screens, the memory address of the central control display screen may be set to the preset memory address corresponding to the bus interface a, and for all types of instrument display screens, the memory address of the central control display screen may be set to the preset memory address corresponding to the bus interface B.

In this embodiment, accessing the memory of the target display device via the target memory address to read the device code stored in the memory, step 12, may include the steps of:

Determining a target memory address corresponding to the target bus interface from a plurality of preset memory addresses;

the memory of the target display device is accessed according to the target memory address to read the device code in the memory.

Wherein the target display device is connected to the controller via the target bus interface, and an address of a memory within the target display device is configured as a target memory address.

As described above, the target display device is connected to the controller through the target bus interface, and different bus interfaces correspond to different preset memory addresses, so, if the data of the memory in the target display device is to be accessed, the preset memory address corresponding to the target bus interface should be selected from the multiple preset memory addresses first as the target memory address. And accessing the memory of the target display device according to the determined target memory address to read the device code in the memory.

It should be noted that if more than one display device is connected to the same bus interface, in order to prevent address collision, a different memory address should be set for each display device connected to the bus interface.

In another possible implementation manner, at least two display devices are provided, and each display device is connected to the controller through a different bus interface, where an address of a memory in each display device is a preset target memory address.

After the communication connection with the target display device is successfully established, the memory of the target display device can be accessed through a preset target memory address. Wherein, based on the target memory address, a register of the target display device memory can be accessed through a video deserializer of the display device and the device code stored therein can be read.

For example, the addresses of the memories of the respective display devices may be set to the same I2C bus address.

In this embodiment, since the display devices are connected to different bus interfaces, even if the same address is allocated to the memory of each display device, there is no problem of address conflict, and thus the same memory address, that is, the target memory address, can be allocated to the memory of each display device. Therefore, no matter what kind of device is the target display device to be identified, the target display device can be accessed through the same target storage, no additional identification of what kind of device is the target display device is needed, and the efficiency of accessing the memory of the target display device is improved.

In step 13, the model of the target display device is determined based on the read device code.

In one possible embodiment, step 13 may comprise the steps of:

Since the device code can reflect the model of the display device, the correspondence relationship between the device code and the device model can be set in advance. For example, the correspondence between the device code and the device model may be represented as a table made up of the device code and the device model, i.e., each time a new device appears, its device code is stored in association with the model of the device in the table.

Thus, after the above correspondence is acquired, the device model corresponding to the target device code can be determined based on the correspondence, and thus, the model of the target display device can be determined.

In another possible implementation, the device code may be a string of a plurality of substrings, wherein the substrings include a first substring for characterizing the device model and at least one second substring associated with the device attribute.

Each second substring is associated with a device attribute. By way of example, the device attributes may include, but are not limited to, at least one of: manufacturer, screen resolution, screen size, whether it is a touch screen, refresh rate. For example, when the vehicle is diagnosed, after receiving a diagnosis request sent by the diagnostic apparatus, the controller reads the second sub-string, obtains attribute information corresponding to the equipment attribute according to the second sub-string, and feeds the obtained attribute information back to the diagnostic apparatus to assist the diagnostic apparatus in diagnosing the vehicle.

In this embodiment, step 13 may include the steps of:

extracting a first substring from the read device code;

As described above, the device model of the target display device is embodied in the first substring of the device code stored therein, and thus, for the device code read via step 12, the first substring thereof may be extracted, and the device model characterized by the first substring may be regarded as the model of the target display device. For example, when the device code is set, the position of the first sub-string in the character string of the device code may be set, and then, according to the set position of the first sub-string, the content corresponding to the first sub-string may be extracted from the read device code to the corresponding position.

In one possible implementation, the device code of the target display device may still not be readable after step 12 due to the data missing in the memory of the target display device, and thus the model of the target display device may not be determined according to the device code. For this case, an additional processing method is required. Thus, after step 12, if the device code is not read, the method provided by the present disclosure may further include the steps of:

attempting to access a target part of the display device according to the target part address to read data in the target part;

if the data reading fails, re-determining a target component address from a plurality of preset component addresses, and attempting to access the target component according to the re-determined target component address;

and if the data is successfully read, taking the equipment model corresponding to the target part address as the model of the target display equipment.

And each part address corresponds to a model of display equipment. Wherein, for a certain model of display device, the address of the designated part of the display device can be used as the preset part address. For example, for a touch screen (i.e., display device) of model X, an address of a touch chip (i.e., designated part) of the touch screen may be taken as a preset part address X, and the preset part address X may be corresponding to model X.

Based on this, a target part address may be determined from a plurality of preset part addresses, and access to a target part of the target display device may be attempted according to the target part address to attempt to read data in the target part. If the data is read out, the current target component address cannot access the target component, so that the target component address can be redetermined from a plurality of preset component addresses, and the target component is tried to be accessed according to the redetermined target component address until the data is read out successfully. If the data is successfully read, the current target component address can access the target component, and the equipment model corresponding to the target component address can be used as the model of the target display equipment. For example, if the target display device is a display screen, the target component of the target display device may be a display chip. For another example, if the target display device is a touch screen, the target component of the target display device may be a touch chip.

By the method, when the equipment codes cannot be read from the memory of the display equipment to be identified, the model of the target display equipment can be determined by attempting to access the target part in the display equipment based on the preset part address corresponding to the model of the display equipment, so that the condition of system starting flow interruption caused by the problems of data error and the like in the memory of the display equipment can be avoided, and the system starting efficiency is improved.

Optionally, after determining the model of the target display device via step 13, the method provided by the present disclosure may further include the steps of:

and loading a driver matched with the model of the target display equipment according to the determined model of the target display equipment so as to enable the target display equipment to work normally.

That is, after determining the model of the target display device, a driver for configuring the model device may be selected, and then a corresponding driver is loaded, so that the target display device can work normally.

In this way, a corresponding driver can be loaded for each display device on the vehicle, thereby enabling each display device on the vehicle to operate normally.

The present disclosure also provides an identification apparatus of a display device, including:

a memory having a computer program stored thereon;

and a processor for executing the computer program in the memory to implement the steps of the method for identifying a display device provided by any embodiment of the disclosure.

Fig. 2 is a block diagram of an electronic device 700, according to an example embodiment. The electronic device 700 may be provided as an identification means for a display device. As shown in fig. 2, the electronic device 700 may include: a processor 701, a memory 702. The electronic device 700 may also include one or more of a multimedia component 703, an input/output (I/O) interface 704, and a communication component 705.

The processor 701 is configured to control the overall operation of the electronic device 700 to perform all or part of the steps in the above-described identification method of a display device. The memory 702 is used to store various types of data to support operation on the electronic device 700, which may include, for example, instructions for any application or method operating on the electronic device 700, as well as application-related data, such as contact data, messages sent and received, pictures, audio, video, and so forth. The Memory 702 may be implemented by any type or combination of volatile or non-volatile Memory devices, such as static random access Memory (Static Random Access Memory, SRAM for short), electrically erasable programmable Read-Only Memory (Electrically Erasable Programmable Read-Only Memory, EEPROM for short), erasable programmable Read-Only Memory (Erasable Programmable Read-Only Memory, EPROM for short), programmable Read-Only Memory (Programmable Read-Only Memory, PROM for short), read-Only Memory (ROM for short), magnetic Memory, flash Memory, magnetic disk, or optical disk. The multimedia component 703 can include a screen and an audio component. Wherein the screen may be, for example, a touch screen, the audio component being for outputting and/or inputting audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signals may be further stored in the memory 702 or transmitted through the communication component 705. The audio assembly further comprises at least one speaker for outputting audio signals. The I/O interface 704 provides an interface between the processor 701 and other interface modules, which may be a keyboard, mouse, buttons, etc. These buttons may be virtual buttons or physical buttons. The communication component 705 is for wired or wireless communication between the electronic device 700 and other devices. Wireless communication, such as Wi-Fi, bluetooth, near field communication (Near Field Communication, NFC for short), 2G, 3G, 4G, NB-IOT, eMTC, or other 5G, etc., or one or a combination of more of them, is not limited herein. The corresponding communication component 705 may thus comprise: wi-Fi module, bluetooth module, NFC module, etc.

In an exemplary embodiment, the electronic device 700 may be implemented by one or more application specific integrated circuits (Application Specific Integrated Circuit, abbreviated as ASIC), digital signal processor (Digital Signal Processor, abbreviated as DSP), digital signal processing device (Digital Signal Processing Device, abbreviated as DSPD), programmable logic device (Programmable Logic Device, abbreviated as PLD), field programmable gate array (Field Programmable Gate Array, abbreviated as FPGA), controller, microcontroller, microprocessor, or other electronic component for performing the above-described identification method of a display device.

In another exemplary embodiment, a computer readable storage medium is also provided, comprising program instructions which, when executed by a processor, implement the steps of the above-described method of identifying a display device. For example, the computer readable storage medium may be the memory 702 including program instructions described above, which are executable by the processor 701 of the electronic device 700 to perform the identification method of the display device described above.

In another exemplary embodiment, a computer program product is also provided, which comprises a computer program executable by a programmable apparatus, the computer program having code portions for performing the above-mentioned identification method of a display device when being executed by the programmable apparatus.

The present disclosure also provides a display system including:

at least one display device, each display device having a memory disposed therein for storing a device code of the display device;

and the controller is connected with the display equipment and is used for accessing the memory of the target display equipment through the target memory address after the communication connection is successfully established with the target display equipment so as to read equipment codes in the memory, and determining the model of the target display equipment according to the read equipment codes, wherein the target display equipment is one of at least one display equipment.

The controller may be, for example, a cabin controller of a vehicle. The target display device is one of at least one display device, and the controller can use each display device as the target display device to realize model identification of the target display device, so that model identification of all display devices on the vehicle is realized.

Through the display system, a memory for storing the device code of the display device is newly added in each display device connected with the controller, communication connection is established with the target display device to be identified, after the communication connection is successfully established, the memory of the target display device is accessed through the target memory address so as to read the device code stored in the memory, and then the model of the target display device is determined according to the read device code. Therefore, the memory for storing the device codes is newly added in the display device, and when the system is started, the device codes are only needed to be acquired from the target memory addresses without traversing all the memory addresses, so that the time for traversing the memory addresses is saved, and meanwhile, the model of the display device can be quickly identified through the device codes stored in the memory of the display device, so that the time spent for starting the system is reduced, and the starting efficiency is improved.

Optionally, at least two display devices are provided, each display device is connected to the controller through a different bus interface, and the different bus interfaces correspond to different preset memory addresses. And, the controller may be configured to: and determining a target memory address corresponding to the target bus interface from a plurality of preset memory addresses, and accessing a memory of the target display device according to the target memory address to read a device code in the memory, wherein the target display device is connected with the controller through the target bus interface, and the address of the memory in the target display device is configured as the target memory address.

Optionally, at least two display devices are provided, each display device is connected to the controller through a different bus, and the address of the memory in each display device is a preset target memory address.

Optionally, the controller may be further configured to:

determining a target component address from a plurality of preset component addresses under the condition that the device code is not read; attempting to access a target part of the display device according to the target part address to read data in the target part; if the data reading fails, re-determining a target component address from a plurality of preset component addresses, and attempting to access the target component according to the re-determined target component address; and if the data is successfully read, taking the equipment model corresponding to the target part address as the model of the target display equipment.

Optionally, a video deserializer may be provided within the target display device that is connected to the memory of the target display device. And the controller can be internally provided with a video deserializer connected with the video deserializer, and the video deserializer is in communication connection with the video deserializer through a preset communication protocol so as to enable the controller to be in communication connection with the target display device.

Alternatively, the memory and video deserializer within the target display device may have mutually matched communication interfaces.

By setting the communication interfaces matched with each other, the communication connection between the video deserializer of the target display device and the target memory can be realized.

Alternatively, the memory within the target display device and the video deserializer may be connected through an I2C interface.

Fig. 3 is an exemplary block diagram of a display system provided in accordance with one embodiment of the present disclosure. Referring to fig. 3, a display system is shown in which the controller is a cabin controller and includes only one display device. As can be seen from fig. 3, the cabin domain controller comprises a video central processing unit (CPU, central processing unit) and a video serializer, and the display device comprises a video deserializer, a display device and a memory. The video central processing unit is connected with the video serializer, the video serializer is connected with the video deserializer through a cable, and the video deserializer is connected with the display device and the memory respectively.

The cockpit area controller is responsible for providing and pushing display content (i.e. video), and the video central processing unit of the cockpit area controller can output video data, and meanwhile, because the video data needs to be remotely transmitted to the display device through a cable, the video data can be modulated into a serial video signal suitable for cable transmission through the video serializer. For example, the display content output by the video cpu may be MIPI (Mobile Industry Processor Interface ) or eDP formatted data. For another example, the serial video signal modulated by the video serializer may be an FPD Link or GMSL signal.

After receiving the serial video signal, the display device demodulates the serial video signal into a signal form which can be processed by the display device through a video deserializer, and outputs the demodulated signal to the display device.

Alternatively, the display device may include other devices, such as an acceleration sensor and a gyro sensor for recognizing the posture of the display device, a power management unit for providing power required for normal operation of the display device, and the like, in addition to the above devices, which is not limited by the present disclosure.

With respect to the above display system, a specific manner in which the respective components perform operations has been described in detail in the embodiment of the identification method of the above display device, and will not be described in detail herein.

The present disclosure also provides a vehicle including the display system provided by any of the embodiments of the present disclosure.

The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings, but the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solutions of the present disclosure within the scope of the technical concept of the present disclosure, and all the simple modifications belong to the protection scope of the present disclosure.

In addition, the specific features described in the above embodiments may be combined in any suitable manner without contradiction. The various possible combinations are not described further in this disclosure in order to avoid unnecessary repetition.

Moreover, any combination between the various embodiments of the present disclosure is possible as long as it does not depart from the spirit of the present disclosure, which should also be construed as the disclosure of the present disclosure.

Claims

1. A method for identifying display devices, which is characterized by being applied to a controller, wherein the controller is connected with at least one display device, and a memory for storing device codes of the display devices is arranged in each display device; the method comprises the following steps:

2. The method of claim 1, wherein there are at least two display devices, each display device being connected to the controller via a different bus interface, the different bus interfaces corresponding to different preset memory addresses, the accessing the memory of the target display device via the target memory address to read the device code stored in the memory, comprising:

3. The method of claim 1, wherein there are at least two display devices, each display device being connected to the controller via a different bus interface, and an address of a memory in each display device being a preset target memory address.

4. The method of claim 1, wherein after the accessing the memory of the target display device by the target memory address to read the device code stored in the memory, if the device code is not read, the method further comprises:

5. The method of claim 1, wherein the determining the model of the target display device based on the read device code comprises:

6. The method of claim 1, wherein the device is encoded as a string of a plurality of substrings, wherein the substrings include a first substring for characterizing a device model and at least one second substring associated with a device attribute;

extracting a first substring from the read device code;

7. The method according to any one of claims 1-6, further comprising:

8. An identification apparatus for a display device, comprising:

a memory having a computer program stored thereon;

A processor for executing the computer program in the memory to implement the steps of the method of any one of claims 1-7.

9. A non-transitory computer readable storage medium having stored thereon a computer program, characterized in that the program when executed by a processor realizes the steps of the method according to any of claims 1-7.

10. A display system, the display system comprising:

11. The display system of claim 10, wherein there are at least two display devices, each display device being connected to the controller via a different bus interface, the different bus interfaces corresponding to different preset memory addresses;

12. The display system according to claim 10, wherein there are at least two display devices, each display device is connected to the controller through a different bus, and an address of a memory in each display device is a preset target memory address.

13. The display system of claim 10, wherein the controller is further configured to:

14. The display system of claim 10, wherein a video deserializer is disposed within the target display device that is coupled to a memory of the target display device;

15. The display system of claim 14, wherein the memory and video deserializer within the target display device have mutually matched communication interfaces.

16. The display system of claim 15, wherein the memory within the target display device and the video deserializer are connected through an I2C interface.

17. A vehicle comprising the display system of any one of claims 10-16.