WO2020143574A1 - Method and apparatus for updating firmware in vci device, and automobile fault diagnosis instrument - Google Patents

Abstract

The embodiments of the present invention relate to the technical field of automobiles and software, in particular to a method and apparatus for updating firmware in a VCI device, and an automobile fault diagnosis instrument. The method for updating firmware in a VCI device comprises: establishing a connection with a VCI device, wherein the VCI device comprises firmware, an operating system and a startup manager, the firmware is used for realizing a communication protocol and/or a communication standard supported by the VCI device, and the operating system is used for managing the product model of the VCI device and version information of the current firmware; acquiring the product model of the VCI device and the version information of the current firmware; and determining target update firmware according to the product model, and the version information of the current firmware, such that the VCI device updates the current firmware to the target update firmware. By means of the method, according to the embodiments of the present invention, firmware in a VCI device can be updated in real time, such that the VCI device satisfies the diagnosis requirements of an automobile fault diagnosis instrument, thereby improving the safety of the automobile fault diagnosis instrument.

Description

Method and device for updating firmware of VCI equipment and automobile fault diagnosis instrument

This application requires the priority of the Chinese patent application submitted to the China Patent Office on January 07, 2019, with the application number 201910012440.1 and the application titled "A VCI device firmware update method, device, and car fault diagnostic instrument." The content is incorporated into this application by reference.

Technical field

The present application relates to the technical field of automobiles and software, in particular to a method and device for updating firmware of VCI equipment and an automobile fault diagnostic instrument.

Background technique

With the rapid development of automotive technology, the emergence of more and more automotive communication standards and communication protocols has made the automotive communication standards and communication protocols in the sold VCI equipment unable to meet the diagnostic needs of automotive fault diagnostic instruments. The instrument continues to diagnose through VCI equipment and vehicle communication, which is prone to potential safety hazards. Therefore, how to make vehicle communication standards and communication protocols in VCI equipment gradually enrich with the development of automobiles has become an urgent technical problem to be solved.

Summary of the invention

The embodiment of the present invention aims to provide a method and device for updating the firmware of a VCI device and an automobile fault diagnostic instrument, which can update the firmware in the VCI device in real time, so that the VCI equipment meets the diagnostic needs of the automobile fault diagnostic instrument and improves the automobile fault diagnosis Instrument security.

In order to solve the above technical problems, a technical solution adopted by the embodiments of the present invention is: to provide a method for updating firmware of a VCI device, which is applied to an automobile fault diagnostic instrument, and the method includes:

Establish a connection with a VCI device; wherein, the VCI device includes firmware, an operating system, and startup management, the firmware is used to implement a communication protocol and/or communication standard supported by the VCI device, and the operating system is used to manage the Describe the product model of the VCI device and the version information of the current firmware;

Obtain the product model and current firmware version information of the VCI device;

A target update firmware is determined according to the product model and the version information of the current firmware, so that the VCI device updates the current firmware to the target update firmware.

Optionally, before establishing the connection with the VCI device, the method further includes:

Connected to a server, the server stores the first firmware;

Determine an updatable firmware corresponding to a preset VCI model from the first firmware according to a preset time interval, and store the updatable firmware as a second firmware.

Optionally, before determining the target to update the firmware according to the product model and the version information of the current firmware, the method further includes:

When connected to the server, obtain version information of the first firmware adapted to the product model from the server;

If it is determined according to the acquired version information of the first firmware that the first firmware is an updated version of the second firmware adapted to the product model, the second firmware adapted to the product model does not exist, the product If the second firmware integrity check of the model adaptation fails at least one item, the first firmware is downloaded to replace the second firmware.

Optionally, the determining the target update firmware according to the product model and the current firmware version information includes:

Determining, according to the product model, that the second firmware adapted to the VCI device is the firmware to be updated;

Determine whether the firmware to be updated is an updated version of the current firmware according to the version information of the current firmware;

If yes, perform an integrity check on the firmware to be updated, and determine the firmware to be updated that passed the verification as the target update firmware.

Optionally, the version information includes a version number, and determining whether the firmware to be updated is an updated version of the current firmware according to the version information of the current firmware includes:

Comparing the version number of the current firmware with the version number of the firmware to be updated according to a preset version number number sequence;

If the number sequence of the version numbers of the firmware to be updated is greater than the number sequence of the version numbers of the current firmware, it is determined that the firmware to be updated is an updated version of the current firmware.

Optionally, the method further includes:

Send a firmware update command to the VCI device, so that the VCI device switches to the update mode;

Sending the target update firmware to the VCI device, so that the VCI device performs data verification on the target update firmware, and if the verification is passed, the current firmware is updated to the target update firmware.

Optionally, if the VCI device fails to verify the target update firmware data, the method further includes:

Control the VCI device to interrupt the update, and prompt the reason for the interruption.

Optionally, the method further includes:

Perform a security check on the current firmware according to the version information of the current firmware, and if the security check fails, determine a target update firmware according to the product model and the version information of the current firmware.

Optionally, performing a security check on the current firmware according to the version information of the current firmware includes:

Receiving a trigger operation, the trigger operation includes a function to be diagnosed;

It is determined according to the version information of the current firmware whether the current firmware can satisfy the function to be diagnosed, and if not, the security check fails.

Optionally, a connection is established with the VCI device via WiFi, USB or Bluetooth.

In order to solve the above technical problems, another technical solution adopted by the embodiments of the present invention is to provide a device for updating firmware of a VCI device, which is applied to an automobile fault diagnostic apparatus, and the device includes:

A connection module configured to establish a connection with a VCI device; wherein the VCI device includes firmware, an operating system, and startup management, the firmware is used to implement a communication protocol and/or communication standard supported by the VCI device , The operating system is used to manage the product model of the VCI device and the version information of the current firmware;

An obtaining module, the obtaining module is used to obtain the product model of the VCI device and the version information of the current firmware;

A determination module, the determination module is configured to determine a target update firmware according to the product model and the version information of the current firmware, so that the VCI device updates the current firmware to the target update firmware.

Optionally, the connection module is also used to:

Before establishing a connection with the VCI device, connect with a server, the server storing the first firmware;

Determine an updatable firmware corresponding to a preset VCI model from the first firmware according to a preset time interval, and store the updatable firmware as a second firmware.

Optionally, the connection module is also used to:

Before determining the target update firmware according to the product model and the version information of the current firmware, when connected to the server, acquiring version information of the first firmware adapted to the product model from the server;

If it is determined according to the acquired version information of the first firmware that the first firmware is an updated version of the second firmware adapted to the product model, the second firmware adapted to the product model does not exist, the product If the second firmware integrity check of the model adaptation fails at least one item, the first firmware is downloaded to replace the second firmware.

Optionally, the determination module is used to:

Determining, according to the product model, that the second firmware adapted to the VCI device is the firmware to be updated;

Determine whether the firmware to be updated is an updated version of the current firmware according to the version information of the current firmware;

If yes, perform an integrity check on the firmware to be updated, and determine the firmware to be updated that passed the verification as the target update firmware.

Optionally, the version information includes a version number, and the determination module is further used to:

Comparing the version number of the current firmware with the version number of the firmware to be updated according to a preset version number number sequence;

If the number sequence of the version numbers of the firmware to be updated is greater than the number sequence of the version numbers of the current firmware, it is determined that the firmware to be updated is an updated version of the current firmware.

Optionally, the device further includes:

A sending module, the sending module is used to send a firmware update command to the VCI device to switch the VCI device to an update mode; and,

It is used to send the target update firmware to the VCI device, so that the VCI device performs data verification on the target update firmware, and if the verification is passed, the current firmware is updated to the target update firmware.

Optionally, the connection module is also used to:

If the VCI device fails the verification of the target update firmware data, the VCI device is controlled to interrupt the update and prompt the cause of the interruption.

Optionally, the device further includes:

A security check module, the security check module is configured to perform a security check on the current firmware according to the version information of the current firmware, and if the security check fails, then based on the product model and the version information of the current firmware Determine the target to update the firmware.

Optionally, the security check module is specifically used for:

Receiving a trigger operation, the trigger operation includes a function to be diagnosed;

It is determined according to the version information of the current firmware whether the current firmware can satisfy the function to be diagnosed, and if not, the security check fails.

Optionally, the connection module establishes a connection with the VCI device via WiFi, USB or Bluetooth.

In order to solve the above technical problems, another technical solution adopted by the embodiments of the present invention is to provide an automobile fault diagnostic instrument, including:

At least one processor; and

A memory in communication connection with the at least one processor;

Wherein, the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor, so that the at least one processor can be used to execute the VCI device firmware described above Update method.

To solve the above technical problems, another technical solution adopted by the embodiments of the present invention is to provide a non-volatile computer-readable storage medium that stores computer-executable instructions. The computer-executable instructions are used to enable the automobile fault diagnostic apparatus to perform the method for updating the firmware of the VCI device described above.

The beneficial effects of the embodiments of the present invention are: different from the prior art, the embodiments of the present invention provide a method and device for updating firmware of a VCI device and an automobile fault diagnostic instrument. In the method of updating firmware of a VCI device, the automobile malfunctions After the diagnostic instrument establishes a connection with the VCI device, it obtains the product model and current firmware version information of the VCI device, and determines the target update firmware according to the acquired product model and current firmware version information, so that the car fault diagnostic instrument can determine the VCI in real time. The firmware updated by the current firmware in the device; when the vehicle fault diagnosis instrument determines the target update firmware, the vehicle fault diagnosis instrument controls the VCI device to update the current firmware to the target update firmware, so that the firmware in the VCI device can be updated in real time, and because of the VCI The firmware in the device is used to implement the communication protocol and/or communication standard supported by the VCI device, so when the firmware in the VCI device is updated in real time, the communication protocol and/or communication standard in the VCI device is also updated in real time, making VCI The equipment can meet the diagnosis needs of automobile fault diagnosis instrument and improve the safety of automobile fault diagnosis instrument.

BRIEF DESCRIPTION

One or more embodiments are exemplified by the pictures in the corresponding drawings. These exemplary descriptions do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the drawings do not constitute a scale limitation.

1 is a schematic structural diagram of an implementation environment of a method for updating firmware of a VCI device according to an embodiment of the present invention;

2 is a schematic flowchart of a method for updating firmware of a VCI device according to an embodiment of the present invention;

FIG. 3 is a schematic flowchart of the method step S800 of updating the firmware of the VCI device shown in FIG. 2;

4 is a schematic flowchart of a method for updating firmware of a VCI device according to another embodiment of the present invention;

5 is a schematic flowchart of a method for updating firmware of a VCI device according to another embodiment of the present invention;

6 is a schematic structural diagram of an apparatus for updating firmware of a VCI device according to an embodiment of the present invention;

7 is a schematic structural diagram of a device for updating firmware of a VCI device according to another embodiment of the present invention;

8 is a schematic structural diagram of a device for updating firmware of a VCI device according to another embodiment of the present invention;

FIG. 9 is a schematic diagram of a hardware structure of an automobile fault diagnostic apparatus provided by an embodiment of the present invention.

detailed description

To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, but not all the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

It should be noted that when an element is expressed as "fixed" to another element, it may be directly on the other element, or there may be one or more centered elements in between. When an element is expressed as "connecting" another element, it may be directly connected to the other element, or one or more centered elements may be present therebetween. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this specification are for illustrative purposes only.

In addition, the technical features involved in the embodiments of the present invention described below can be combined with each other as long as there is no conflict with each other.

The invention provides a method and a device for updating the firmware of a VCI device. The method and the device are applied to an automobile fault diagnostic instrument, so that when the automobile fault diagnostic instrument is connected to the VCI equipment, it can be based on the product model and current firmware of the VCI equipment The version information of the VCI device updates the firmware in the VCI device in real time, so as to avoid that the communication protocol and/or communication standard supported by the firmware in the VCI device does not meet the diagnostic requirements of the automobile fault diagnostic instrument and cause safety problems. Among them, the VCI device is a vehicle communication interface (Vehicle Communication Interface) device, which is used to connect the car fault diagnostic instrument and the car to complete the communication between the car fault diagnostic instrument and the car.

In the following, the present invention will be described in detail through specific examples.

Example one

Please refer to FIG. 1, which is a schematic structural diagram of an implementation environment of a method for updating firmware of a VCI device according to an embodiment of the present invention. The implementation environment includes a server 10, a VCI device 20, and an automobile fault diagnostic apparatus 30.

The server 10 stores first firmware, which is firmware that can run on the VCI device 20, and includes all versions of firmware that the VCI device 20 can run, and each version of the firmware stores version information correspondingly.

In the embodiment of the present invention, the version information of the first firmware includes: a version number and an adapted VCI device model. Among them, the version number is composed of numbers, which are arranged according to the preset version number sequence, the greater the version number sequence, the newer the firmware. For example: when the preset version number sequence is arranged in positive order according to the number size, the larger the number, the larger the number sequence, the newer the firmware; when the preset version number sequence is arranged in reverse order, according to the number size, The smaller the number, the greater the number sequence of the version number, and the newer the firmware.

The server 10 may be one server, or a server cluster composed of several servers, or may be a cloud computing service center.

VCI device 20 includes boot management 21, firmware 22, and operating system 23.

Among them, the startup management 21 is used to complete the startup management of the VCI device 20.

The firmware 22 is used to implement the communication protocol and/or communication standard supported by the VCI device 20. By updating the firmware 22, the communication protocol and/or communication standard is updated.

The operating system 23 is used to manage the product model of the VCI device 20 and the version information of the current firmware. The version information of the current firmware is the version information of the firmware 22 that the VCI device 20 is running. The version information of the current firmware includes the version number and the adapted VCI device model. When the firmware 22 is updated, the version information of the current firmware is also adaptively updated as the firmware 22 is updated.

The car fault diagnosis instrument 30 is a tool for checking car faults, and is connected to the car through a VCI device, and can realize various car diagnostic functions.

The car fault diagnosis instrument 30 is located on the user's side and is used to interact with the user. In the automobile fault diagnosis apparatus 30, one or more input/output devices are provided, such as a display screen, buttons, touch screens, etc., which display the diagnostic functions that can be provided to the user through the input/output devices. The trigger operation of the function to be diagnosed on the input/output device can enable the automobile fault diagnostic apparatus 30 to receive the trigger operation including the function to be diagnosed. Among them, the trigger operation may be an action instruction such as clicking, double-clicking, pressing, sliding, and long-pressing.

In the automobile fault diagnosis apparatus 30, a comparison table of the relationship between the diagnosis function and the firmware version number is stored. Since all versions of the firmware are forward compatible, as long as a certain version of the firmware can support a certain diagnostic function, subsequent versions of the firmware can support the diagnostic function, so the relationship between the diagnostic function and the firmware version number in the comparison table, The firmware version number corresponding to the diagnosis function is the smallest version number that can realize the diagnosis function. At this time, the vehicle fault diagnosis apparatus 30 can determine whether the current firmware in the VCI device 20 can meet the function to be diagnosed through the received function to be diagnosed and the version information of the current firmware in the VCI device 20.

A second firmware is stored in the automobile fault diagnosis apparatus 30, and the second firmware is a firmware that can run on the VCI device 20, which includes the latest version of firmware that can be run by the VCI device 20 of each model, and the VCI device of each model The latest version of the firmware that the 20 can run has one and only one, that is, as many types of VCI devices 20 as there are as many firmwares.

Wherein, the automobile fault diagnostic instrument 30 is connected to the server 10, and downloads and stores as the second firmware the first version of the latest firmware that can be operated by the VCI device 20 of each type in the server 10.

If the vehicle fault diagnosis apparatus 30 needs to update the firmware in the VCI device 20, it needs to be connected to the VCI device 20.

Based on this, in the method of updating the firmware of the VCI device performed by the automobile fault diagnostic instrument 30, in order to prevent the firmware update in the VCI device 20, it also takes time to temporarily connect to the network 10 to obtain the updateable firmware from the server, Before connecting to the VCI device 20, the car trouble diagnosis instrument 30 first connects to the server 10 via a network, determines the updateable firmware corresponding to the preset VCI model from the first firmware stored in the server 10 according to the preset time interval, and determines The updatable firmware is stored as the second firmware, so that when the vehicle fault diagnostic device 30 updates the firmware in the VCI device 20, it can determine the firmware used to update the firmware in the VCI device 20 from the second firmware, shortening Update time and improve efficiency.

Wherein, the preset time interval is a preset query interval, which represents the frequency with which the automobile fault diagnostic apparatus 30 queries the server 10. Querying whether there is an updateable firmware in the server 10 according to a preset time interval can prevent the vehicle fault diagnostic apparatus 30 from being missed.

The preset VCI model is the product model of all VCI devices preset. Based on this, the updateable firmware corresponding to the preset VCI model is determined, that is, the updateable firmware corresponding to each model of the VCI device is determined. For example, if the preset VCI models include Type A and Type B, when determining the updateable firmware corresponding to the preset VCI model, it is necessary to separately determine the updateable firmware corresponding to the Type A VCI device and the updateable firmware corresponding to the Type B VCI device.

When the updateable firmware corresponding to the preset VCI model is determined from the first firmware stored in the server 10, the car fault diagnostic device 30 determines the adapted first firmware according to each preset VCI model, and then The first firmware with the largest number sequence of the version numbers in the first firmware determined by the VCI model is determined as the updateable firmware for each preset VCI model. For example, the automobile fault diagnosis apparatus 30 determines that the first firmware adapted to the A-type VCI device is firmware 1 and firmware 2, and determines that the first firmware adapted to the B-type VCI device is firmware 1, where the version number of the firmware 1 is 1. The version number of firmware 2 is 2, and the number sequence of the version numbers is arranged in positive order according to the number size. In the type A VCI device, the number sequence of the version number of firmware 2 is the largest, and firmware 2 is determined as the type A VCI device. Updatable firmware; In the B-type VCI device, the version number of the firmware 1 is the largest, and the firmware 1 is determined as the updatable firmware of the B-type VCI device.

Further, after storing the updatable firmware as the second firmware, the automobile fault diagnostic instrument 30 obtains the product model of the VCI device 20 and the current firmware version information if a connection is established with the VCI device 20.

Among them, the automobile fault diagnostic instrument 30 establishes a connection with the VCI device 20 through WiFi, USB or Bluetooth, and the automobile fault diagnostic instrument 30 can only be connected to the VCI device 20 in one way.

When connecting to the VCI device 20 via Bluetooth or WiFi, the Bluetooth name of the VCI device 20 or the SSID of the WiFi has a characteristic that distinguishes it from other wireless devices, so after the car troubleshooter 30 obtains the Bluetooth name or the SSID of the WiFi, according to the Bluetooth The name or the SSID of WiFi determines the VCI device 20, and automatically performs password verification with the determined VCI device 20 to establish a connection.

After successfully connecting with the VCI device 20, the car fault diagnostic device 30 stores the Bluetooth name or the SSID of the connected VCI device 20, so that the car fault diagnostic device 30 recognizes the stored Bluetooth name or the SSID of the WiFi again. The VCI device 20 corresponding to the Bluetooth name or the SSID of the WiFi automatically restores the connection, improving the connection speed between the car fault diagnostic apparatus 30 and the VCI device 20.

When connected to the VCI device 20 via USB, the car fault diagnostic instrument 30 detects the PID and VID of the VCI device 20, and runs a USB driver according to the PID and VID to establish a connection.

In some embodiments, it is possible to set the priority of the connection method between the car fault diagnostic instrument 30 and the VCI device 20. Preferably, based on the transmission rate and stability, the USB connection is set to the highest priority, and the WiFi and Bluetooth connections are set to the same priority .

Further, after obtaining the product model of the VCI device 20 and the version information of the current firmware, the car fault diagnosis instrument 30 obtains the first firmware of the first firmware adapted to the product model from the server 10 if it is connected to the server 10 again Version Information.

Wherein, if the model of the VCI device adapted in the first firmware includes the product model acquired by the automobile fault diagnostic instrument 30 from the VCI device 20, it is determined that the first firmware is the first firmware that is adapted to the product model. For example, the product model of the VCI device 20 obtained by the automobile fault diagnosis instrument 30 is type C, and the model of the VCI device adapted by firmware 1 is type B and type C. At this time, the model of the VCI device adapted by firmware 1 includes product model C Type, it is determined that the firmware 1 is the first firmware adapted to the product model.

When it is determined that there are a plurality of first firmwares adapted to the product model, the automobile fault diagnostic apparatus 30 acquires the version information of the first firmware with the largest number order of the version numbers.

Further, after acquiring the determined version information of the first firmware, the automobile fault diagnosis apparatus 30 determines that the first firmware is the updated version and product model of the second firmware adapted to the product model according to the acquired version information of the first firmware If the adapted second firmware does not exist, and the integrity verification of the second firmware of the product model does not pass at least one, the first firmware is downloaded to replace the second firmware adapted to the product model, so that the car fault diagnostic instrument The second firmware in 30 can maintain the latest version.

Wherein, if the model of the VCI device adapted in the second firmware includes the product model acquired by the vehicle fault diagnostic device 30 from the VCI device 20, it is determined that the second firmware is the second firmware that is adapted to the product model. The second firmware adapted to the product model can verify its integrity through the verification code.

At this time, the obtained version number of the first firmware is compared with the version number of the second firmware adapted to the product model. If the number sequence of the first firmware version number is greater than the number sequence of the second firmware version number, It is determined that the first firmware is an updated version of the second firmware.

If the model of the VCI device adapted in the second firmware does not include the product model acquired by the vehicle fault diagnostic device 30 from the VCI device 20, it is determined that the second firmware adapted to the product model does not exist.

Further, after downloading the first firmware to replace the second firmware, the car fault diagnostic apparatus 30 determines the target update firmware according to the product model and the current firmware version information.

Specifically, the car fault diagnosis apparatus 30 determines that the second firmware adapted to the VCI device 20 is the firmware to be updated according to the product model, and then determines whether the firmware to be updated is the updated version of the current firmware according to the version information of the current firmware.

Wherein, when the car fault diagnosis instrument 30 determines that the second firmware adapted to the VCI device 20 is the firmware to be updated according to the product model, the second firmware including the product model of the adapted VCI device is determined to be the firmware to be adapted to the VCI device Update the firmware. In the automobile fault diagnosis apparatus 30, there is only one second firmware adapted to the VCI device 20 of each product model.

Among them, determining whether the firmware to be updated is the updated version of the current firmware according to the version information of the current firmware includes: comparing the version number of the current firmware with the version number of the firmware to be updated according to a preset version number sequence; determining the version number of the firmware to be updated Whether the number sequence is greater than the number sequence of the current firmware version number.

If the numbering sequence of the version numbers of the firmware to be updated is greater than the numbering sequence of the version numbers of the current firmware, it is determined that the firmware to be updated is the updated version of the current firmware. The firmware to be updated passed the verification is determined to be the target firmware to be updated.

Further, after the vehicle fault diagnosis apparatus 30 determines the target update firmware, the VCI device updates the current firmware to the target update firmware.

Specifically, the car fault diagnosis instrument 30 sends a firmware update command to the VCI device 20 to switch the VCI device 20 to the update mode; then sends the determined target update firmware to the VCI device, so that the VCI device performs data calibration on the target update firmware If the verification is passed, the current firmware is updated as the target update firmware; if the verification is not passed, the VCI device is controlled to interrupt the update, and the reason for the interruption is prompted, so that the user can adjust the car fault diagnosis instrument 30 according to the cause of the interruption to restart Update the firmware in the VCI device.

When the VCI device 20 switches to the update mode, all services related to automobile communication are stopped.

The VCI device 20 performs data verification on the target update firmware through the verification code.

Further, in some other embodiments, the automobile fault diagnostic apparatus 30 can also perform a security check on the current firmware in the VCI device 20 according to the acquired version information of the current firmware.

Wherein, the automobile fault diagnosis instrument 30 performs a safety check on the current firmware in the VCI device 20 according to the acquired version information of the current firmware, which specifically includes: after receiving the trigger operation including the function to be diagnosed, the automobile malfunction diagnosis instrument 30 is based on the acquired The current firmware version information determines whether the current firmware in the VCI device 20 can satisfy the function to be diagnosed.

Wherein, determining whether the current firmware in the VCI device 20 can satisfy the function to be diagnosed based on the acquired version information of the current firmware includes: the car fault diagnostic apparatus 30 determines the received function to be diagnosed according to the relationship table between the diagnosis function and the firmware version number Corresponding firmware version number; compare the current firmware version number with the firmware version number determined according to the function to be diagnosed, if the number sequence of the current firmware version number is not less than the firmware version number determined according to the function to be diagnosed, then determine the VCI device 20 Of the current firmware can satisfy the function to be diagnosed; otherwise, it is determined that the current firmware in the VCI device 20 cannot satisfy the function to be diagnosed.

If the current firmware in the VCI device 20 does not satisfy the function to be diagnosed, it is determined that the safety check fails. At this time, the car fault diagnostic device 30 determines the target update firmware according to the product model and the current firmware version information.

In this embodiment, when the car fault diagnostic apparatus 30 determines the target update firmware according to the product model and the current firmware version information, the car fault diagnostic apparatus 30 determines that the second firmware adapted to the VCI device 20 is the firmware to be updated according to the product model, Then, determine whether the firmware to be updated is an updated version of the current firmware according to the version information of the current firmware; if it is determined that the firmware to be updated is an updated version of the current firmware, determine whether the number sequence of the version numbers of the firmware to be updated is not less than that according to the function to be diagnosed The firmware version number of the firmware, if it is, the integrity check of the firmware to be updated is performed, and the firmware to be updated passed the verification is determined as the target firmware update; if not, it is connected to the server 10, based on the firmware version number and product model. The first firmware of 10 determines the target update firmware.

In the embodiment of the present invention, when the vehicle fault diagnostic instrument is connected to the VCI device, it can update the firmware in the VCI device in real time according to the product model of the VCI device and the current firmware version information, and then the communication protocol and /Or communication standards are also updated in real time, so that VCI equipment can meet the diagnostic needs of automotive fault diagnostics, and improve the safety of automotive fault diagnostics.

Example 2

Please refer to FIG. 2, which is a schematic flow chart of a method for updating firmware of a VCI device according to an embodiment of the present invention, which is applied to a car fault diagnostic instrument. The car fault diagnostic instrument is the car fault diagnostic instrument described in the above embodiments 30. The VCI device firmware update method includes:

S100: Connect to the server.

In the embodiment of the present invention, the server stores the first firmware, and the first firmware is firmware that can run on the VCI device, which includes all versions of the firmware that the VCI device can run, and each version of the firmware correspondingly stores a version information.

The version information of the first firmware includes: a version number and an adapted VCI device model. Among them, the version number is composed of numbers, which are arranged according to the preset version number sequence, the greater the version number sequence, the newer the firmware. For example: when the preset version number sequence is arranged in positive order according to the number size, the larger the number, the larger the number sequence, the newer the firmware; when the preset version number sequence is arranged in reverse order, according to the number size, The smaller the number, the greater the number sequence of the version number, and the newer the firmware.

In order to prevent the process of updating the firmware in the VCI device, it also takes time to temporarily connect to the server to obtain the updateable firmware from the server. Before connecting the vehicle diagnostic tool to the VCI device, first connect it to the server through the wireless LAN to connect The updateable firmware in the server is stored locally in advance, shortening the time to update the VCI device and improving efficiency.

S200: Determine an updateable firmware corresponding to a preset VCI model from the first firmware according to a preset time interval, and store the updateable firmware as the second firmware.

Among them, the preset time interval is a preset query interval, which represents the frequency of querying the server by the automobile fault diagnosis instrument. Querying whether there is updateable firmware in the server according to the preset time interval can prevent the car fault diagnostic instrument from missing detection.

The preset VCI model is the product model of all VCI devices preset. Based on this, the updateable firmware corresponding to the preset VCI model is determined, that is, the updateable firmware corresponding to each model of the VCI device is determined. For example, if the preset VCI models include Type A and Type B, when determining the updateable firmware corresponding to the preset VCI model, it is necessary to separately determine the updateable firmware corresponding to the Type A VCI device and the updateable firmware corresponding to the Type B VCI device.

Wherein, when the updateable firmware corresponding to the preset VCI model is determined from the first firmware stored in the server, the car fault diagnostic instrument determines the adapted first firmware according to each preset VCI model, and then sets each preset VCI The first firmware with the largest number sequence of the version numbers in the first firmware determined by the model is determined as the updatable firmware for each preset VCI model. For example, the car fault diagnostic apparatus determines that the first firmware for the A-type VCI device is firmware 1 and firmware 2, and the first firmware for the B-type VCI device is firmware 1, where the version number of the firmware 1 is 1. The version number of 2 is 2, and the number sequence of the version number is arranged in a positive order according to the number size. In the type A VCI device, the number sequence of the firmware 2 version number is the largest, and the firmware 2 is determined as the type A VCI device. Update the firmware; In the B-type VCI device, the version number of the firmware 1 is the largest, and the firmware 1 is determined as the updatable firmware of the B-type VCI device.

After the vehicle fault diagnosis instrument determines the updatable firmware, the determined updatable firmware is stored as the second firmware, and the second firmware is the firmware that can run on the VCI device, which includes the latest version of each model of the VCI device that can run firmware. In the automobile fault diagnosis apparatus, each type of VCI device can run the latest version of firmware with only one, that is, as many types of VCI devices as there are as many second firmwares.

When updating the firmware in the VCI device, the automobile fault diagnosis instrument can determine the firmware for updating the VCI device from the second firmware, shorten the update time, and improve the efficiency.

S300: Establish a connection with the VCI device.

In the embodiment of the present invention, the VCI device includes firmware, an operating system, and boot management.

Startup management is used to complete the startup management of VCI equipment.

The firmware is used to implement the communication protocol and/or communication standard supported by the VCI device. By updating the firmware, the communication protocol and/or communication standard is updated.

The operating system is used to manage the product model of the VCI device and the current firmware version information. The version information of the current firmware is the version information of the firmware that the VCI device is running. The version information of the current firmware includes the version number and the model of the adapted VCI device. When the firmware is updated, the current firmware version information is also adaptively updated with the firmware update.

The car fault diagnosis instrument updates the firmware in the VCI device by connecting with the VCI device. Among them, the car fault diagnosis instrument can establish a connection with the VCI device through WiFi, USB or Bluetooth, and it can only be connected to the VCI device through one of the methods.

When connecting to a VCI device via Bluetooth or WiFi, the Bluetooth name of the VCI device or the SSID of the WiFi has a characteristic that distinguishes it from other wireless devices, so after obtaining the Bluetooth name or the SSID of the WiFi, the car fault diagnosis instrument, according to the Bluetooth name or the WiFi The SSID determines the VCI device, and automatically performs password verification with the determined VCI device to establish a connection.

After successfully connecting with the VCI device, the car fault diagnostic device stores the Bluetooth name or SSID of the connected VCI device, so that the car fault diagnostic device recognizes the stored Bluetooth name or WiFi SSID again, and then The VCI device corresponding to the SSID of WiFi automatically restores the connection, improving the connection speed between the car fault diagnostic instrument and the VCI device.

When connecting with a VCI device via USB, the car fault diagnostic instrument detects the PID and VID of the VCI device, and runs a USB driver according to the PID and VID to establish a connection.

In some embodiments, a priority can be set for the connection method between the car fault diagnostic instrument and the VCI device. Preferably, based on the transmission rate and stability, the USB connection is set to the highest priority, and the WiFi and Bluetooth connections are set to the same priority.

S400: Obtain the product model and current firmware version information of the VCI device.

The car fault diagnosis instrument obtains the product model of the VCI device and the version information of the currently running firmware of the VCI device from the operating system of the VCI device.

S800: Determine a target update firmware according to the product model and the version information of the current firmware, so that the VCI device updates the current firmware to the target update firmware.

Please refer to FIG. 3, the target update firmware according to the product model and the current firmware version information specifically includes:

S810: Determine, according to the product model, that the second firmware adapted to the VCI device is firmware to be updated.

The second firmware of the adapted VCI device model including the product model is determined as the firmware to be updated adapted to the VCI device. For example: the product model of the VCI device is type C, and the model of the VCI device adapted by firmware 1 is type B and C. At this time, the model of the VCI device adapted by firmware 1 includes the product model C, then determine that firmware 1 is The firmware to be updated adapted to the VCI device.

S820: Determine whether the firmware to be updated is an updated version of the current firmware according to the version information of the current firmware, and if yes, go to step S830.

Specifically, the version number of the current firmware and the version number of the firmware to be updated are compared according to the preset version number sequence; if the number sequence of the version number of the firmware to be updated is greater than the number sequence of the version number of the current firmware, it is determined that the firmware to be updated is The updated version of the current firmware.

S830: Perform an integrity check on the firmware to be updated, and determine the firmware to be updated that passes the verification as the target firmware to be updated.

Check the integrity of the firmware to be updated through the check code.

Further, causing the VCI device to update the current firmware to the target update firmware specifically includes: sending a firmware update command to the VCI device to switch the VCI device to the update mode; sending the target update firmware to the VCI device to make the VCI device target the target Update the firmware to verify the data. If the verification passes, the current firmware is updated to the target update firmware; if the VCI device fails to verify the target update firmware data, the VCI device is controlled to interrupt the update and prompt the reason for the interruption.

Among them, when the VCI device is switched to the update mode, all services related to automobile communication are stopped.

The VCI device performs data verification on the target update firmware through the verification code.

Please refer to FIG. 4. In some other embodiments, in order to keep the second firmware in the automobile fault diagnosis instrument up to date, before step S800, the method further includes:

S500: When connected to the server, obtain version information of the first firmware adapted to the product model from the server.

Wherein, if the model of the VCI device adapted in the first firmware includes the product model acquired by the vehicle fault diagnostic instrument from the VCI device, it is determined that the first firmware is the first firmware that is adapted to the product model. For example, the product model of the VCI device obtained by the automobile fault diagnosis instrument is type C, and the model of the VCI device adapted by firmware 1 is type B and type C. At this time, the model of the VCI device adapted by firmware 1 includes the product model C. Then it is determined that the firmware 1 is the first firmware adapted to the product model.

When it is determined that there are a plurality of first firmwares adapted to the product model, the automobile fault diagnostic apparatus acquires the version information of the first firmware with the largest number sequence of version numbers.

S600: If it is determined according to the acquired version information of the first firmware that the first firmware is an updated version of the second firmware adapted to the product model, the second firmware adapted to the product model does not exist, all If the second firmware integrity check adapted to the product model fails at least one item, then download the first firmware to replace the second firmware.

Wherein, if the model of the adapted VCI device in the second firmware includes the model of the product obtained from the VCI device by the automobile fault diagnostic apparatus, it is determined that the second firmware is the second firmware adapted to the model of the product. The model-matched second firmware can verify its integrity through the verification code.

At this time, the obtained version number of the first firmware is compared with the version number of the second firmware adapted to the product model. If the number sequence of the first firmware version number is greater than the number sequence of the second firmware version number, It is determined that the first firmware is an updated version of the second firmware.

If the model of the VCI device adapted in the second firmware does not include the product model obtained by the vehicle fault diagnosis instrument from the VCI device, it is determined that the second firmware adapted to the product model does not exist.

Referring to FIG. 5, in some other embodiments, before step S800, the method further includes:

S700: Perform a security check on the current firmware according to the version information of the current firmware, and if the security check fails, determine a target update firmware according to the product model and the version information of the current firmware.

Among them, the car fault diagnosis instrument performs a safety check on the current firmware in the VCI device according to the obtained version information of the current firmware, which specifically includes: after the car fault diagnosis instrument receives the trigger operation including the function to be diagnosed, according to the acquired current firmware The version information determines whether the current firmware in the VCI device can satisfy the function to be diagnosed.

The automobile fault diagnosis instrument displays the diagnosis function that can be provided to the user through the input/output device. By triggering the operation to be diagnosed on the input/output device, the user can make the automobile malfunction diagnosis instrument receive the trigger operation including the function to be diagnosed. Among them, the trigger operation may be an action instruction such as clicking, double-clicking, pressing, sliding, and long-pressing.

Wherein, determining whether the current firmware in the VCI device can meet the function to be diagnosed according to the obtained version information of the current firmware includes: the car fault diagnosis instrument determines the corresponding function of the received function to be diagnosed according to the relationship table between the diagnosis function and the firmware version number Firmware version number; compare the current firmware version number with the firmware version number determined according to the function to be diagnosed, if the sequence number of the current firmware version number is not less than the firmware version number determined according to the function to be diagnosed, determine the current firmware in the VCI device It can satisfy the function to be diagnosed; otherwise, it is determined that the current firmware in the VCI device cannot satisfy the function to be diagnosed.

Among them, the comparison table of the relationship between the diagnosis function and the firmware version number is the correspondence relationship between the diagnosis function and the firmware version number pre-stored in the automobile fault diagnosis apparatus. Since all versions of the firmware are forward compatible, as long as a certain version of the firmware can support a certain diagnostic function, subsequent versions of the firmware can support this diagnostic function, so in the relationship between the diagnostic function and the firmware version number in the comparison table, The firmware version number corresponding to the diagnosis function is the version number of the smallest firmware that can realize the diagnosis function.

If the current firmware in the VCI device cannot satisfy the function to be diagnosed, it is determined that the safety check fails. At this time, the car fault diagnosis instrument determines the target update firmware based on the product model and the current firmware version information.

In this embodiment, when the car fault diagnosis apparatus determines the target update firmware according to the product model and the current firmware version information, the car fault diagnosis apparatus determines that the second firmware adapted to the VCI device is the firmware to be updated according to the product model, and then according to the current The version information of the firmware determines whether the firmware to be updated is an updated version of the current firmware; if it is determined that the firmware to be updated is an updated version of the current firmware, it is determined whether the number sequence of the version numbers of the firmware to be updated is not less than the firmware version determined according to the function to be diagnosed No. If it is, the integrity check of the firmware to be updated is performed, and the verified firmware to be updated is determined as the target update firmware; if not, it is connected to the server, and the first firmware is on the server according to the firmware version number and product model Confirm the target update firmware.

In the embodiment of the present invention, when the vehicle fault diagnostic instrument is connected to the VCI device, it can update the firmware in the VCI device in real time according to the product model of the VCI device and the current firmware version information, and then the communication protocol and /Or communication standards are also updated in real time, so that VCI equipment can meet the diagnostic needs of automotive fault diagnostics, and improve the safety of automotive fault diagnostics.

Example Three

The term “module” used below is a combination of software and/or hardware that can realize a predetermined function. Although the devices described in the following embodiments may be implemented in software, implementation of hardware or a combination of software and hardware may also be conceived.

Please refer to FIG. 6, which is a schematic structural diagram of a device for updating firmware of a VCI device according to one embodiment of the present invention, which is applied to a car fault diagnostic instrument. The car fault diagnostic instrument is the car fault diagnostic instrument described in the above embodiments 30. The VCI device firmware update device includes:

A connection module 100, the connection module 100 is used to establish a connection with a VCI device; wherein the VCI device includes firmware, an operating system, and startup management, the firmware is used to implement a communication protocol and/or supported by the VCI device Communication standards, the operating system is used to manage the product model of the VCI device and the version information of the current firmware;

An obtaining module 200, which is used to obtain the product model of the VCI device and the version information of the current firmware;

The determination module 300 is configured to determine a target update firmware according to the product model and the version information of the current firmware, so that the VCI device updates the current firmware to the target update firmware.

Wherein, the connection module 100 establishes a connection with the VCI device through WiFi, USB or Bluetooth.

Further, the connection module 100 is also used for:

Before establishing a connection with the VCI device, connect with a server, the server storing the first firmware;

Determine an updatable firmware corresponding to a preset VCI model from the first firmware according to a preset time interval, and store the updatable firmware as a second firmware.

Further, the connection module 100 is also used for:

Before determining the target update firmware according to the product model and the version information of the current firmware, when connected to the server, acquiring version information of the first firmware adapted to the product model from the server;

If it is determined according to the acquired version information of the first firmware that the first firmware is an updated version of the second firmware adapted to the product model, the second firmware adapted to the product model does not exist, the product If the second firmware integrity check of the model adaptation fails at least one item, the first firmware is downloaded to replace the second firmware.

Further, the determination module 300 is specifically used for:

Determining, according to the product model, that the second firmware adapted to the VCI device is the firmware to be updated;

Determine whether the firmware to be updated is an updated version of the current firmware according to the version information of the current firmware;

If yes, perform an integrity check on the firmware to be updated, and determine the firmware to be updated that passed the verification as the target update firmware.

Further, when the version information includes a version number, the determining module 300 is also used to:

Comparing the version number of the current firmware with the version number of the firmware to be updated according to a preset version number number sequence;

If the number sequence of the version numbers of the firmware to be updated is greater than the number sequence of the version numbers of the current firmware, it is determined that the firmware to be updated is an updated version of the current firmware.

Further, referring to FIG. 7, the VCI device firmware update device further includes:

A sending module 400, the sending module 400 is used to send a firmware update command to the VCI device to switch the VCI device to an update mode; and,

It is used to send the target update firmware to the VCI device, so that the VCI device performs data verification on the target update firmware, and if the verification is passed, the current firmware is updated to the target update firmware.

Further, the connection module 400 is also used to:

If the VCI device fails the verification of the target update firmware data, the VCI device is controlled to interrupt the update and prompt the cause of the interruption.

Further, referring to FIG. 8, the VCI device firmware update device further includes:

A security check module 500, the security check module 500 is used to perform a security check on the current firmware according to the version information of the current firmware, and if the security check fails, then based on the product model and the current firmware The version information determines the target to update the firmware.

Further, the security check module 500 is specifically used for:

Receiving a trigger operation, the trigger operation includes a function to be diagnosed;

It is determined according to the version information of the current firmware whether the current firmware can satisfy the function to be diagnosed, and if not, the security check fails.

Since the device embodiment and the method embodiment are based on the same concept, the content of the device embodiment can refer to the method embodiment under the premise that the content does not conflict with each other, which will not be repeated here.

In the embodiment of the present invention, when the vehicle fault diagnostic instrument is connected to the VCI device, it can update the firmware in the VCI device in real time according to the product model of the VCI device and the version information of the current firmware, and then the communication protocol and /Or communication standards are also updated in real time, so that VCI equipment can meet the diagnostic needs of automotive fault diagnostics, and improve the safety of automotive fault diagnostics.

Example 4

Please refer to FIG. 9, which is a schematic diagram of the hardware structure of an automobile fault diagnostic apparatus provided by one embodiment of the present invention. The automobile fault diagnostic apparatus 30 can execute the method for updating a firmware of a VCI device described in the above embodiment, and The functions of each module of the apparatus for updating firmware of a VCI device described in the above embodiments. The car fault diagnosis instrument 30 includes:

One or more processors 31 and memory 32. Among them, one processor 31 is taken as an example in FIG. 9.

The processor 31 and the memory 32 may be connected through a bus or in other ways. In FIG. 9, the connection through a bus is used as an example.

The memory 32 is a non-volatile computer-readable storage medium that can be used to store non-volatile software programs, non-volatile computer executable programs, and modules, such as a VCI device firmware update in the foregoing embodiments of the present invention The program instruction corresponding to the method and the module corresponding to a device for updating the firmware of the VCI device (for example, the connection module 100, the acquisition module 200, and the determination module 300, etc.). The processor 31 executes various functional applications and data processing of a method for updating VCI device firmware by running non-volatile software programs, instructions, and modules stored in the memory 32, that is, one of the above method embodiments is implemented A method for updating the firmware of a VCI device and the function of each module in the above device embodiments.

The memory 32 may include a storage program area and a storage data area, wherein the storage program area may store an operating system and at least one function required application program; the storage data area may store a device created by using a VCI device firmware update device Data etc.

The stored data area also stores preset data, including a preset time interval, a preset VCI model, a preset version number number sequence, a comparison table of relationships between diagnostic functions and firmware version numbers, and so on.

In addition, the memory 32 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device. In some embodiments, the memory 32 may optionally include memories remotely provided with respect to the processor 31, and these remote memories may be connected to the processor 31 through a network. Examples of the above network include but are not limited to the Internet, intranet, local area network, mobile communication network, and combinations thereof.

The program instructions and one or more modules are stored in the memory 32, and when executed by the one or more processors 31, each of the methods for updating a VCI device firmware in any of the above method embodiments is performed Step, or, implement the functions of each module of an apparatus for updating firmware of a VCI device in any of the foregoing apparatus embodiments.

The above products can execute the method provided by the above embodiments of the present invention, and have the corresponding function modules and beneficial effects of the execution method. For technical details that are not described in detail in this embodiment, refer to the method provided in the foregoing embodiment of the present invention.

An embodiment of the present invention also provides a non-volatile computer-readable storage medium that stores computer-executable instructions that are executed by one or more processors, such as FIG. 9 A processor 31 in the computer can cause the computer to execute the steps of a method for updating the firmware of a VCI device in any of the above method embodiments, or each of the devices for updating the firmware of a VCI device in any of the above device embodiments The function of the module.

An embodiment of the present invention also provides a computer program product. The computer program product includes a computer program stored on a non-volatile computer-readable storage medium. The computer program includes program instructions. When the program instructions are Or executed by multiple processors, such as a processor 31 in FIG. 9, which can cause the computer to execute the steps of a method for updating the firmware of a VCI device in any of the above method embodiments, or implement the method in any of the above device embodiments A function of each module of a device for updating firmware of a VCI device.

The device embodiments described above are only schematic, wherein the modules described as separate components may or may not be physically separated, and the components displayed as modules may or may not be physical units, that is, may be located One place, or can be distributed to multiple network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

Through the description of the above embodiments, a person of ordinary skill in the art can clearly understand that each embodiment can be implemented by means of software plus a general hardware platform, and of course, it can also be implemented by hardware. Those of ordinary skill in the art may understand that all or part of the processes in the methods of the above embodiments may be completed by computer program instructions related hardware. The program may be stored in a computer-readable storage medium, and the program is being executed At this time, it may include the flow of the method for implementing the above methods. Wherein, the storage medium may be a magnetic disk, an optical disk, a read-only memory (Read-Only Memory, ROM) or a random access memory (Random Access Memory, RAM), etc.

The above is only an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by the description and drawings of the present invention, or directly or indirectly used in other related technologies In the field, the same reason is included in the patent protection scope of the present invention.

Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention, rather than limiting them; under the idea of the present invention, the technical features in the above embodiments or different embodiments may also be combined, The steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above. For simplicity, they are not provided in the details; although the present invention has been described in detail with reference to the foregoing embodiments, it is common in the art The skilled person should understand that they can still modify the technical solutions described in the foregoing embodiments, or equivalently replace some of the technical features; and these modifications or replacements do not deviate from the essence of the corresponding technical solutions in the implementation of this application. Examples of technical solutions.

Claims (22)

A method for updating firmware of a VCI device, which is applied to an automobile fault diagnostic instrument, and is characterized in that the method includes: Establish a connection with a VCI device; wherein, the VCI device includes firmware, an operating system, and startup management, the firmware is used to implement a communication protocol and/or communication standard supported by the VCI device, and the operating system is used to manage the Describe the product model of the VCI device and the version information of the current firmware; Obtain the product model and current firmware version information of the VCI device; A target update firmware is determined according to the product model and the version information of the current firmware, so that the VCI device updates the current firmware to the target update firmware. The method according to claim 1, wherein before the establishment of the connection with the VCI device, the method further comprises: Connected to a server, the server stores the first firmware; Determine an updatable firmware corresponding to a preset VCI model from the first firmware according to a preset time interval, and store the updatable firmware as a second firmware. The method according to claim 2, wherein before determining the target update firmware according to the product model and the version information of the current firmware, the method further comprises: When connected to the server, obtain version information of the first firmware adapted to the product model from the server; If it is determined according to the acquired version information of the first firmware that the first firmware is an updated version of the second firmware adapted to the product model, the second firmware adapted to the product model does not exist, the product If the second firmware integrity check of the model adaptation fails at least one item, the first firmware is downloaded to replace the second firmware. The method according to claim 2 or 3, wherein the determining the target update firmware according to the product model and the current firmware version information includes: Determining, according to the product model, that the second firmware adapted to the VCI device is the firmware to be updated; Determine whether the firmware to be updated is an updated version of the current firmware according to the version information of the current firmware; If yes, perform an integrity check on the firmware to be updated, and determine the firmware to be updated that passed the verification as the target update firmware. The method according to claim 4, wherein the version information includes a version number, and the determining whether the firmware to be updated is an updated version of the current firmware according to the version information of the current firmware includes: Comparing the version number of the current firmware with the version number of the firmware to be updated according to a preset version number number sequence; If the number sequence of the version numbers of the firmware to be updated is greater than the number sequence of the version numbers of the current firmware, it is determined that the firmware to be updated is an updated version of the current firmware. The method according to any one of claims 1-5, wherein the method further comprises: Send a firmware update command to the VCI device, so that the VCI device switches to the update mode; Sending the target update firmware to the VCI device, so that the VCI device performs data verification on the target update firmware, and if the verification is passed, the current firmware is updated to the target update firmware. The method according to claim 6, wherein if the VCI device fails the verification of the target update firmware data, the method further comprises: Control the VCI device to interrupt the update, and prompt the reason for the interruption. The method according to any one of claims 1-7, wherein the method further comprises: Perform a security check on the current firmware according to the version information of the current firmware, and if the security check fails, determine a target update firmware according to the product model and the version information of the current firmware. The method according to claim 8, wherein the performing security check on the current firmware according to the version information of the current firmware includes: Receiving a trigger operation, the trigger operation includes a function to be diagnosed; It is determined according to the version information of the current firmware whether the current firmware can satisfy the function to be diagnosed, and if not, the security check fails. The method according to any one of claims 1-9, wherein a connection is established with the VCI device through WiFi, USB, or Bluetooth. A device for updating firmware of VCI equipment, which is applied to an automobile fault diagnostic instrument, and is characterized in that the device includes A connection module configured to establish a connection with a VCI device; wherein the VCI device includes firmware, an operating system, and startup management, the firmware is used to implement a communication protocol and/or communication standard supported by the VCI device , The operating system is used to manage the product model of the VCI device and the version information of the current firmware; An obtaining module, the obtaining module is used to obtain the product model of the VCI device and the version information of the current firmware; A determination module, the determination module is configured to determine a target update firmware according to the product model and the version information of the current firmware, so that the VCI device updates the current firmware to the target update firmware. The device according to claim 11, wherein the connection module is further used to: Before establishing a connection with the VCI device, connect with a server, the server storing the first firmware; Determine an updatable firmware corresponding to a preset VCI model from the first firmware according to a preset time interval, and store the updatable firmware as a second firmware. The device according to claim 12, wherein the connection module is further used to: Before determining the target update firmware according to the product model and the version information of the current firmware, when connected to the server, acquiring version information of the first firmware adapted to the product model from the server; If it is determined according to the acquired version information of the first firmware that the first firmware is an updated version of the second firmware adapted to the product model, the second firmware adapted to the product model does not exist, the product If the second firmware integrity check of the model adaptation fails at least one item, the first firmware is downloaded to replace the second firmware. The apparatus according to claim 12 or 13, wherein the determination module is used to: Determining, according to the product model, that the second firmware adapted to the VCI device is the firmware to be updated; Determine whether the firmware to be updated is an updated version of the current firmware according to the version information of the current firmware; If yes, perform an integrity check on the firmware to be updated, and determine the firmware to be updated that passed the verification as the target update firmware. The apparatus according to claim 14, wherein the version information includes a version number, and the determination module is further configured to: Comparing the version number of the current firmware with the version number of the firmware to be updated according to a preset version number number sequence; If the number sequence of the version numbers of the firmware to be updated is greater than the number sequence of the version numbers of the current firmware, it is determined that the firmware to be updated is an updated version of the current firmware. The device according to any one of claims 11-15, wherein the device further comprises: A sending module, the sending module is used to send a firmware update command to the VCI device to switch the VCI device to an update mode; and, It is used to send the target update firmware to the VCI device, so that the VCI device performs data verification on the target update firmware, and if the verification is passed, the current firmware is updated to the target update firmware. The device according to claim 16, wherein the connection module is further used to: If the VCI device fails the verification of the target update firmware data, the VCI device is controlled to interrupt the update and prompt the cause of the interruption. The device according to any one of claims 11-17, wherein the device further comprises: A security check module, the security check module is configured to perform a security check on the current firmware according to the version information of the current firmware, and if the security check fails, then based on the product model and the version information of the current firmware Determine the target to update the firmware. The device according to claim 18, wherein the security check module is specifically configured to: Receiving a trigger operation, the trigger operation includes a function to be diagnosed; It is determined according to the version information of the current firmware whether the current firmware can satisfy the function to be diagnosed, and if not, the security check fails. The apparatus according to any one of claims 11-19, wherein the connection module establishes a connection with the VCI device through WiFi, USB, or Bluetooth. An automobile fault diagnostic instrument, which is characterized by comprising: At least one processor; and A memory in communication connection with the at least one processor; Wherein, the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor, so that the at least one processor can be used to execute as in claims 1-10 A method for updating firmware of a VCI device according to any one of the items. A non-volatile computer-readable storage medium, characterized in that the non-volatile computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to make the automobile fault diagnostic apparatus execute as the right The method for updating the firmware of the VCI device according to any one of claims 1-10 is required.

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