Hot standby method and system for integrated driver machine interface devices

Abstract

Disclosed in the present invention are a hot standby method and system for integrated driver machine interface devices. The method comprises: firstly, determining two driver machine interface devices as a master driver machine interface device and a standby driver machine interface device in a hot standby mode, wherein the master driver machine interface device comprises a master screen, and the standby driver machine interface device comprises a standby screen; and then, the master screen registering a first bus port for communication between the master driver machine interface device and a vehicle-mounted device, establishing a communication connection and information interaction with the vehicle-mounted device, transparently transmitting received information interaction content of the vehicle-mounted device to the standby screen by means of Ethernet communication for synchronous display, and sending received standby screen reply content to the vehicle-mounted device by means of the first bus port. The hot standby method ensures real-time consistent display of driver machine interfaces; and one first bus port for communication with a vehicle-mounted device is used, thereby reducing resource usage and greatly improving the system availability.

Description

A hot standby method and system for an integrated human-machine interface device Technical Field

[0001] The present invention belongs to the field of rail transportation, and in particular relates to a hot standby method and system for an integrated human-machine interface device. Background Art

[0002] Urban rail transit has experienced rapid development in recent years. As domestic urban rail vehicles gradually evolve toward comfort and intelligence, trains are becoming increasingly versatile, equipped with more and more equipment, and the information required for interaction is becoming more complex. In existing high-speed railway train control system onboard equipment, the Driver Machine Interface (DMI) plays a crucial role as a bridge between the driver and the onboard host computer. Implementing hot standby functionality for DMIs requires two traditional DMIs, which take up a large amount of space. Furthermore, two traditional DMIs also require two sets of communication equipment to communicate with the onboard equipment, which is costly and complex to wire.

[0003] Therefore, how to provide a human-machine interface device that occupies little space and has high usability has become an increasingly urgent technical problem to be solved.

[0004] Summary of the Invention

[0005] In view of the above problems, the present invention provides a hot standby method and system for an integrated human-machine interface device, which occupies a small space and has high availability.

[0006] The object of the present invention is to provide a hot standby method for an integrated human-machine interface device, comprising:

[0007] Determine a master system and a backup system of two human-machine interface devices in a hot standby mode, wherein the master system human-machine interface device includes a master screen and the backup system human-machine interface device includes a backup screen;

[0008] The main screen registers the first bus port for communication between the main system human-machine interface device and the vehicle-mounted device, establishes a communication connection and information interaction with the vehicle-mounted device, and transmits the information interaction content received from the vehicle-mounted device to the standby screen through Ethernet communication for synchronous display, and at the same time sends the received standby screen reply content to the vehicle-mounted device through the first bus port.

[0009] Furthermore,

[0010] If the main screen fails, the backup screen registers the first bus port for communication between the human-machine interface device and the on-board device, and establishes a communication connection and information exchange with the on-board device.

[0011] Further, determining the master system and the backup system of the two human-machine interface devices in the hot standby mode includes:

[0012] Determine the independent identification marks of the two human-machine interface devices;

[0013] Based on their own independent identity identification marks, the identity identification mark represents that the main screen of the human-machine interface device of the main system displays the main screen interface content, and the identity identification mark represents that the backup screen of the human-machine interface device of the backup system displays the backup screen interface content.

[0014] Furthermore, the information interaction includes window information interaction, and the hot standby method includes:

[0015] The vehicle-mounted device sends the window information to the main screen;

[0016] The main screen receives the window information and transparently transmits the received window information to the standby screen;

[0017] The main screen and the backup screen pop up corresponding windows together. The operator operates in the window interface of the main screen and replies the operation information to the on-board device; the operator operates in the window interface of the backup screen. After completing the operation, the backup screen transmits the operation information to the main screen, and the main screen replies to the on-board device.

[0018] Furthermore, if the operator is operating in a window interface and the operation has not been completed and the corresponding human-machine interface device fails, the other human-machine interface device will enter an independent display state as the main system, pop up the corresponding window interface for the operator to continue to complete the operation, and reply the operation information to the vehicle-mounted device.

[0019] Furthermore, the information interaction includes text information interaction, and the hot standby method includes:

[0020] The vehicle-mounted device sends the text message that requires operator confirmation to the main screen, which receives the text message and transparently transmits it to the backup screen.

[0021] The operator completes the operation response to the text message on the main screen and replies the operation information to the vehicle-mounted device;

[0022] The operator completes the operation response to the text message on the standby screen and transmits the operation information to the main screen, which then replies to the on-board device.

[0023] Furthermore, when the communication connection between the two human-machine interface devices is normal, the text information is displayed on the main screen, and the standby screen only records the display and removal of the text information.

[0024] Furthermore,

[0025] The two human-machine interface devices detect each other's life signals. If one of the human-machine interface devices fails, the failed human-machine interface device actively commands the other human-machine interface device to take over the interface display task of the entire vehicle-mounted device and enter an independent display state; or,

[0026] If a human-machine interface device detects a failure of another human-machine interface device, the human-machine interface device will actively take over the interface display task of the entire vehicle-mounted device and enter an independent display state.

[0027] Another object of the present invention is to provide a hot standby system for an integrated human-machine interface device, comprising an on-board device, two human-machine interface devices, and two power supplies, wherein the on-board device and the two human-machine interface devices are connected via a first bus, the two human-machine interface devices communicate with each other via Ethernet, and the two human-machine interface devices are also respectively connected to corresponding power supplies, wherein:

[0028] The two human-machine interface devices are integrated and share a set of first bus ports for communicating with the vehicle-mounted device.

[0029] Furthermore, the two human-machine interface devices are used to determine the master system and the backup system of the two human-machine interface devices in the hot standby mode, wherein the master system human-machine interface device includes a master screen and the backup system human-machine interface device includes a backup screen;

[0030] The main screen is used to register the first bus port for communication between the main system human-machine interface device and the vehicle-mounted device, establish a communication connection and information interaction with the vehicle-mounted device, and transparently transmit the information interaction content received from the vehicle-mounted device to the backup screen for synchronous display, and at the same time send the received backup screen reply content to the vehicle-mounted device through the first bus port.

[0031] Furthermore, if the main screen fails, the standby screen is used to register the first bus port for communication between the standby human-machine interface device and the vehicle-mounted device, and establish a communication connection and information interaction with the vehicle-mounted device.

[0032] Furthermore, the two human-machine interface devices and their corresponding power supplies use different software configurations, representing independent identification marks of the two human-machine interface devices; wherein,

[0033] The identity identification mark represents that the main screen of the human-machine interface device of the master system displays the main screen interface content, and the identity identification mark represents that the standby screen of the human-machine interface device of the standby system displays the standby screen interface content.

[0034] Furthermore, the information interaction includes window information interaction, wherein:

[0035] The vehicle-mounted device is used to send the window information to the main screen;

[0036] The main screen is used to receive window information and transparently transmit the received window information to the standby screen;

[0037] The main screen and the backup screen are also used to pop up corresponding windows together. The operator performs operations in the window interface of the main screen and replies the operation information to the on-board device; the operator performs operations in the window interface of the backup screen. After completing the operation, the backup screen transmits the operation information to the main screen, and the main screen replies to the on-board device.

[0038] Furthermore, the information interaction includes text information interaction, wherein:

[0039] The vehicle-mounted device is used to send text messages that require operator confirmation to the main screen;

[0040] The main screen is used to receive text messages and transparently transmit the received text messages to the standby screen;

[0041] The operator completes the operation response to the text message on the main screen and replies the operation information to the vehicle-mounted device;

[0042] The operator completes the operation response to the text message on the standby screen and transmits the operation information to the main screen, which then replies to the on-board device.

[0043] Furthermore, when the communication connection between the two human-machine interface devices is normal, the text information is displayed on the main screen, and the standby screen is only used to record the display and removal of the text information.

[0044] Furthermore, the two human-machine interface devices are also used to detect each other's life signals. If one of the human-machine interface devices fails, the failed human-machine interface device actively commands the other human-machine interface device to take over the interface display task of the entire vehicle-mounted device and enter an independent display state; or,

[0045] If a human-machine interface device detects a failure of another human-machine interface device, the human-machine interface device will actively take over the interface display task of the entire vehicle-mounted device and enter an independent display state.

[0046] Furthermore, a switching button is provided on the human-machine interfaces of the two human-machine interface devices, which is used to display the human-machine interface content of the failed human-machine interface device on the human-machine interface of the other human-machine interface device by clicking the switching button when one human-machine interface device fails.

[0047] In the hot standby method described in the present invention, only the main screen registers the first bus port for communication between the main system human-machine interface device and the vehicle-mounted device, so that the main screen and the standby screen are used to process the information interaction content from the vehicle-mounted device sent by a set of first bus ports, and the information interaction content is synchronously displayed on the main and standby screens, ensuring the real-time consistency of the human-machine interface display.

[0048] In addition, the dual-screen mode adopted between the main screen and the backup screen allows them to take over the human-machine interface of the abnormal human-machine interface device when they detect abnormal life signals of the other party, enter an independent display state, and actively take over the interface display task of the entire on-board equipment, or switch the interface content on the abnormal human-machine interface device to the normal human-machine interface device through a switching button, thereby ensuring the real-time and integrity of the human-machine interface display and the safety of train operation.

[0049] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0051] FIG1 shows a schematic flow chart of a hot standby method for an integrated human-machine interface device according to an embodiment of the present invention;

[0052] FIG2 shows a schematic diagram of the dual-screen structure of an integrated human-machine interface device according to an embodiment of the present invention;

[0053] FIG3 shows a schematic diagram of the dual-screen structure of another integrated human-machine interface device in an embodiment of the present invention;

[0054] FIG4 shows a schematic structural diagram of a hot standby system of an integrated human-machine interface device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0055] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0056] As shown in FIG1 , an embodiment of the present invention discloses a hot standby method for an integrated human-machine interface device, the method comprising first determining a main system and a backup system of two human-machine interface devices in hot standby mode, wherein the main system human-machine interface device comprises a main screen, and the backup system human-machine interface device comprises a backup screen; then, the main screen registers a first bus port for communication between the main system human-machine interface device and the vehicle-mounted device, establishes a communication connection and information interaction with the vehicle-mounted device, and transmits the received information interaction content of the vehicle-mounted device to the backup screen via Ethernet communication for synchronous display, while sending the received reply content of the backup screen to the vehicle-mounted device via the first bus port. In the hot standby method, only the main screen registers the first bus port for communication between the main system human-machine interface device and the vehicle-mounted device, so that the main screen and the backup screen process the information interaction content sent from the vehicle-mounted device by a set of first bus ports, and the main screen and the backup screen synchronously display the information interaction content, thereby ensuring the real-time consistency of the human-machine interface display.

[0057] In some embodiments of the present invention, the first bus port is an MVB (multifunction vehicle bus) bus port, and the following descriptions are all exemplified using the MVB bus port.

[0058] The hot standby method also includes, if the main screen fails, registering the standby screen with the MVB bus port used for communication between the standby HMI device and the onboard device, establishing a communication connection and information exchange with the onboard device, and no longer relying on the main screen to transparently transmit data via Ethernet. The onboard device can be an ATP (Automatic Train Protection) onboard device, and the two HMI devices are provided with a set of MVB bus ports, which are then connected to the onboard device via the MVB bus. Transparent transmission refers to the method of transmitting data packets intact to the target device during the communication process without any processing or parsing of the data packets. The transparent transmission method thus ensures real-time consistency of the content displayed on the main and standby HMI device interfaces. Furthermore, when the two HMI devices in the integrated HMI device communicate with the ATP (Automatic Train Protection) onboard device, they use a set of MVB bus ports, greatly reducing the system space occupied by the communication connection of the hot standby HMI device. In addition, all human-machine interface devices that establish communication connections with ATP on-board equipment must be registered with the MVB bus port, ensuring the safety of the train under hot standby operation conditions and the practicality of the on-board equipment system, and improving the driver's user experience.

[0059] In some embodiments of the present invention, determining whether two human-machine interface devices are in a hot standby mode as a primary system or a backup system includes: first, determining independent identification marks for each of the two human-machine interface devices; then, based on the independent identification marks, the identification marks represent the primary screen of the human-machine interface device of the primary system, displaying the primary screen interface content; and the identification marks represent the backup screen of the human-machine interface device of the backup system, displaying the backup screen interface content. As shown in FIG2 , an integrated human-machine interface device is configured in a dual-screen mode, wherein the primary screen or backup screen (also known as a driver machine interface (DMI)) of the two human-machine interface devices are both connected to a corresponding power supply, and the software configurations between the two human-machine interface devices and the corresponding power supplies are different, thereby determining that the identification marks of the two are different. The software configuration may include, but is not limited to, the model of the primary screen and the backup screen. The serial numbers of the primary and backup screens are also applicable to the present invention. For example, based on the software configuration of the two human-machine interface devices, the serial number of the left screen (the human-machine interface device on the left side of the integrated human-machine interface device) is set to represent the primary screen, and the serial number of the right screen (the human-machine interface device on the right side of the integrated human-machine interface device) is set to represent the backup screen. The two screens are connected and data is transmitted via Ethernet. The dual-screen setting enables the other human-machine interface to still display the communication content normally when one of the human-machine interfaces is abnormal, thereby improving the reliability of communication interaction of redundant human-machine interface devices.

[0060] The information interaction includes window information interaction and text information interaction. When the onboard device and the human-machine interface device interact with window information, the hot standby method includes the following steps: first, the onboard device sends the window information to the main screen; then, the main screen receives the window information and transparently transmits the received window information to the backup screen; finally, the main screen and the backup screen jointly pop up corresponding windows, and the operator performs operations within the window interface of the main screen and replies to the onboard device; the operator also performs operations within the window interface of the backup screen. After completing the operation, the backup screen transparently transmits the operation information to the main screen, which then replies to the onboard device. Furthermore, if the operator is performing an operation within a window interface and the operation is not yet completed, and the corresponding human-machine interface device fails, the other human-machine interface device, acting as the primary system, enters an independent display state, pops up a corresponding window interface for the operator to continue the operation, and replies to the onboard device. The hot standby mode of the human-machine interface device includes hot standby switching of the interface content display, thereby ensuring reliability and safety during train operation. Preferably, if both human-machine interface devices are in normal status, the content displayed on the interface cannot be switched between the main screen and the standby screen.

[0061] During train operation, when the onboard device and the human-machine interface device exchange text messages, the hot standby method includes the following steps: first, the onboard device sends a text message requiring operator confirmation to the main screen, which receives the text message and transparently transmits it to the backup screen; then, the operator completes an operation response to the text message on the main screen and sends the operation information back to the onboard device; the operator also completes an operation response to the text message on the backup screen and transparently transmits the operation information to the main screen, which then sends the operation information back to the onboard device. When the communication connection between the two human-machine interface devices is normal, the text message is displayed on the main screen, and the backup screen only records the display and removal of text messages.

[0062] In some embodiments of the present invention, the hot standby method further includes two human-machine interface devices detecting each other's life signals. If one of the human-machine interface devices fails, the failed human-machine interface device actively commands the other human-machine interface device to take over the interface display task of the entire on-board device and enter an independent display state; or, if one human-machine interface device detects that the other human-machine interface device has failed, the human-machine interface device actively takes over the interface display task of the entire on-board device and enters an independent display state. If one human-machine interface device fails, the hot standby switching function of the other human-machine interface device is enabled, and the human-machine interface display task of the entire on-board device system is taken over by the hot standby switching mechanism, thereby ensuring the safety of train operation. Preferably, as shown in Figure 3, the human-machine interface adds a switch button (Swap) function. If one human-machine interface device fails, the hot standby switching function of the other human-machine interface device is enabled, then the interface device can display both the left screen content and the right screen content; wherein, the driver can switch the screen content display through the Swap switch button. Therefore, by clicking the switch button on the HMI device, the left and right screens of the HMI can be switched, effectively achieving independent display of HMI content on a single screen and ensuring the reliability of the HMI device. However, it should be noted that if both HMI devices are communicating normally, the Swap button will not appear on the HMI, and the left HMI device will only display the left screen content, while the right HMI device will only display the right screen content.

[0063] As shown in FIG4 , an embodiment of the present invention also discloses a hot standby system for an integrated human-machine interface device capable of executing the hot standby method described above. The system includes an on-board device, two human-machine interface devices, and two power supplies. The on-board device and the two human-machine interface devices are connected via a first bus, and the two human-machine interface devices communicate with each other via Ethernet. The two human-machine interface devices are also connected to corresponding power supplies. The two human-machine interface devices are integrated and share a set of first bus ports for communicating with the on-board device. Furthermore, the two human-machine interface devices are connected via Ethernet, but this is not limited to this. Other bus communications are also applicable to the present invention. Preferably, the human-machine interface (also known as screen, main screen, or backup screen) of the two human-machine interfaces only occupies half of the screen of a traditional human-machine interface device. When the two human-machine interface devices communicate normally with each other and with the on-board device, the two devices can be combined to display normal human-machine interface content. When the two human-machine interface devices in the integrated human-machine interface device communicate with the on-board device, they use a set of first bus ports, thereby reducing the space occupied by the communication connection in the hot standby human-machine interface device.

[0064] In some embodiments of the present invention, the two human-machine interface devices are used to determine the main system and the backup system of the two human-machine interface devices in the hot standby mode, wherein the main system human-machine interface device includes a main screen, and the backup system human-machine interface device includes a backup screen; that is, the human-machine interface (screen) of the main system human-machine interface device is the main screen, and the human-machine interface (screen) of the backup system human-machine interface device is the backup screen. Further, the main screen is used to register the first bus port for communication between the main system human-machine interface device and the on-board device, establish a communication connection and information interaction with the on-board device, and transparently transmit the information interaction content received from the on-board device to the backup screen for synchronous display, and at the same time send the received backup screen reply content to the on-board device through the first bus port. The main screen and the backup screen process a set of data sent by the on-board device to the first port, and synchronously display them on the human-machine interface of the main and backup screen human-machine interface devices according to the communication data, ensuring the real-time consistency of the human-machine interface display of the two human-machine interface devices, thereby improving the safety of train operation.

[0065] In some embodiments of the present invention, if the primary screen fails, the backup screen is used to register the first bus port for communication between the backup human-machine interface device and the onboard device, establishing a communication connection and information exchange with the onboard device. If the primary screen fails, the human-machine interface device performs a hot standby switch, thereby ensuring the safety of train operation.

[0066] In some embodiments of the present invention, two human-machine interface devices respectively use different software configurations with corresponding power supplies. Different software configurations represent independent identity identification marks of the two human-machine interface devices. For example, the two human-machine interface devices use different device models, but not limited to this, they can also have different serial numbers, etc., which are all applicable to the present invention; wherein, the identity identification mark is that the main screen of the human-machine interface device of the main system displays the main screen interface content, and the identity identification mark is that the standby screen of the human-machine interface device of the standby system displays the standby screen interface content.

[0067] The information interaction includes window information interaction. During the operation of the vehicle-mounted device, the vehicle-mounted device is used to send window information to the main screen; the main screen is used to receive window information and transmit the received window information to the backup screen; the main screen and the backup screen are also used to pop up corresponding windows together. The operator operates in the window interface of the main screen and replies the operation information to the vehicle-mounted device; the operator also operates in the window interface of the backup screen. After the operation is completed, the backup screen transmits the operation information to the main screen, and the main screen replies to the vehicle-mounted device. If the operator is operating in a certain window interface and the operation has not been completed, a human-machine interface device fails, and the other human-machine interface device enters an independent display state. The human-machine interface device that enters the independent display state continues to stay in the window to complete the operation and reply the operation information to the vehicle-mounted device. If a human-machine interface device fails, the other human-machine interface device displays the human-machine interface of the failed human-machine interface device, including displaying the unfinished corresponding window, for the operator to complete.

[0068] The information interaction includes text information interaction. During train operation, the onboard device is used to send text information requiring operator confirmation to the main screen; the main screen is used to receive the text information and transparently transmit the received text information to the backup screen; the operator completes the operation response to the text information on the main screen and replies to the onboard device; the operator also completes the operation response to the text information on the backup screen and transparently transmits the operation information to the main screen, which replies to the onboard device. Furthermore, when the communication connection between the two human-machine interface devices is normal, the text information is displayed on the main screen, and the backup screen only records the display and removal of text information.

[0069] The two HMI devices also monitor each other's vital signs. If one HMI device fails, the faulty device proactively commands the other to take over the entire onboard device's interface display, entering an independent display state. Alternatively, if one HMI device detects a failure in the other, it proactively takes over the entire onboard device's interface display, entering an independent display state. If one HMI device fails, the other HMI device independently displays a normal HMI, even displaying the corresponding window currently being operated on the faulty HMI for the operator to manipulate. This ensures the integrity and availability of the HMI display, improves system reliability, and ensures safe train operation.

[0070] In some embodiments of the present invention, a switch button (Swap) function is added to the human-machine interface. If one human-machine interface device fails and the hot standby switch function of another human-machine interface device is enabled, the interface device can display both the left screen content and the right screen content; wherein, the driver can switch the screen content display through the Swap switch button. Therefore, by clicking the switch button on the human-machine interface device interface, the display of the left and right interfaces of the human-machine interface can be switched, effectively realizing the independent display of the human-machine interface content on a single screen and ensuring the reliability of the operation of the human-machine interface device. However, it should be noted that if the communication between the two human-machine interface devices is normal, the Swap switch button will not appear on the human-machine interface, and the interface of the left human-machine interface device can only display the left screen content, and the interface of the right human-machine interface device can only display the right screen content.

[0071] In some embodiments of the present invention, the first bus port adopts an MVB (multifunction vehicle bus) bus port, and the first bus adopts an MVB bus, but is not limited thereto. Other bus ports and buses such as a CAN communication bus port and a CAN communication bus are also applicable to the present invention.

[0072] The two human-machine interface devices of the present invention share a set of MVB ports for communicating with the ATP on-board device. When the communication connection between the two human-machine interface devices is normal, the main screen (the human-machine interface of the main system human-machine interface) will transmit the communication content received from the ATP on-board device to the standby screen via Ethernet communication data for synchronous display, ensuring the real-time consistency of the content displayed on the human-machine interface of the hot standby human-machine interface device. In addition, the dual-screen mode adopted between the main screen and the standby screen can take over the human-machine interface of the abnormal human-machine interface device when the other party's life signal is detected to be abnormal, enter an independent display state, and actively take over the interface display task of the entire on-board device, or switch the interface content on the faulty human-machine interface device to the normal human-machine interface device through the switch button displayed on the human-machine interface, thereby ensuring the real-time and integrity of the human-machine interface display and ensuring the safety of train operation.

[0073] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A hot standby method for an integrated human-machine interface device, characterized in that including Determine the primary system and the standby system of two human-machine interface devices in the hot standby mode. Among them, the primary system human-machine interface device includes a main screen, and the standby system human-machine interface device includes a standby screen; The main screen registers the first bus port for communication between the primary system human-machine interface device and the vehicle-mounted device, establishes a communication connection and information interaction with the vehicle-mounted device, and transmits the received information interaction content of the vehicle-mounted device to the standby screen for synchronous display through Ethernet communication. At the same time, the received reply content of the standby screen is sent to the vehicle-mounted device through the first bus port.

2. The hot standby method of the integrated human-machine interface device according to claim 1, characterized in that, It also includes If the main screen fails, the standby screen registers the first bus port for communication between the standby system human-machine interface device and the vehicle-mounted device, and establishes a communication connection and information interaction with the vehicle-mounted device.

3. The hot standby method of the integrated human-machine interface device according to claim 2, characterized in that, Determining the primary system and the standby system of two human-machine interface devices in the hot standby mode includes Determine the independent identification marks of the two human-machine interface devices; Based on the independent identification marks, the main screen of the human-machine interface device whose identification mark represents the primary system displays the main screen interface content, and the standby screen of the human-machine interface device whose identification mark represents the standby system displays the standby screen interface content.

4. The hot standby method of the integrated human-machine interface device according to any one of claims 2-3, characterized in that The information interaction includes window information interaction. The hot standby method includes The vehicle-mounted device sends window information to the main screen; The main screen receives the window information and transmits the received window information to the standby screen; The main screen and the standby screen jointly pop up the corresponding window. The operator operates within the window interface of the main screen and replies the operation information to the vehicle-mounted device; the operator operates within the window interface of the standby screen. After the operation is completed, the standby screen transmits the operation information to the main screen, and the main screen replies it to the vehicle-mounted device.

5. The hot standby method of the integrated human-machine interface device according to claim 4, characterized in that, If the operator is operating within a window interface and the operation is not completed, and the corresponding human-machine interface device fails, then the other human-machine interface device enters the independent display state as the primary system, pops up the corresponding window interface for the operator to continue to complete the operation, and replies the operation information to the vehicle-mounted device.

6. The hot standby method of the integrated human-machine interface device according to any one of claims 2-3, characterized in that, The information interaction includes text information interaction. The hot standby method includes The vehicle-mounted device sends the text information that needs to be confirmed by the operator to the main screen. The main screen receives the text information and transmits the received text information to the standby screen; The operator completes the operation response to the text information on the main screen and replies the operation information to the vehicle-mounted device; The operator completes the operation response to the text information on the standby screen and transmits the operation information to the main screen, which is replied to the vehicle-mounted device by the main screen.

7. The hot standby method of the integrated human-machine interface device according to claim 6, characterized in that, When the communication connection between the two human-machine interface devices is normal, the text information is displayed by the main screen, and the standby screen only records the display and removal of the text information.

8. The hot standby method of the integrated human-machine interface device according to claim 3, characterized in that, It also includes The two human-machine interface devices detect each other's life signals. If one of the human-machine interface devices fails, the faulty human-machine interface device actively commands the other human-machine interface device to take over the interface display task of the entire vehicle-mounted device and enter the independent display state; Or If one human-machine interface device detects that the other human-machine interface device fails, this human-machine interface device actively takes over the interface display task of the entire vehicle-mounted device and enters the independent display state.

9. A hot standby system for an integrated human-machine interface device, characterized in that, It includes a vehicle-mounted device, two human-machine interface devices, and two power supplies. The vehicle-mounted device is connected to the two human-machine interface devices through a first bus. The two human-machine interface devices communicate with each other via Ethernet. The two human-machine interface devices are also respectively connected to corresponding power supplies. Among them, the two human-machine interface devices are integrated, and the two human-machine interface devices share a set of first bus ports for communicating with the vehicle-mounted device.

10. The hot standby system of the integrated human-machine interface device according to claim 9, characterized in that, The two human-machine interface devices are used to determine the main system and standby system of the two human-machine interface devices in the hot standby mode. Among them, the main system human-machine interface device includes a main screen, and the standby system human-machine interface device includes a standby screen; The main screen is used to register the first bus port for communication between the main system human-machine interface device and the vehicle-mounted device, establish a communication connection and information interaction with the vehicle-mounted device, and transmit the received information interaction content of the vehicle-mounted device to the standby screen for synchronous display. At the same time, the received reply content of the standby screen is sent to the vehicle-mounted device through the first bus port.

11. The hot standby system of the integrated human-machine interface device according to claim 10, characterized in that, If the main screen fails, the standby screen is used to register the first bus port for communication between the standby system human-machine interface device and the vehicle-mounted device, and establish a communication connection and information interaction with the vehicle-mounted device.

12. The hot standby system of the integrated human-machine interface device according to claim 11, wherein The two human-machine interface devices respectively adopt different software configurations with the corresponding power supplies, representing the respective independent identity identification marks of the two human-machine interface devices; among them, the identity identification mark representing the main system human-machine interface device's main screen displays the main screen interface content, and the identity identification mark representing the standby system human-machine interface device's standby screen displays the standby screen interface content.

13. The hot standby system of the integrated human-machine interface device according to claim 12, characterized in that, The information interaction includes window information interaction. Among them, the vehicle-mounted device is used to send window information to the main screen; the main screen is used to receive window information and transmit the received window information to the standby screen; the main screen and the standby screen are also used to jointly pop up the corresponding window. The operator operates within the window interface of the main screen and replies the operation information to the vehicle-mounted device; the operator operates within the window interface of the standby screen. After the operation is completed, the standby screen transmits the operation information to the main screen, and the main screen replies it to the vehicle-mounted device.

14. The hot standby system of the integrated human-machine interface device according to claim 13, characterized in that, The information interaction includes text information interaction. Among them, the vehicle-mounted device is used to send text information that requires the operator to confirm to the main screen; the main screen is used to receive text information and transmit the received text information to the standby screen; the operator completes the operation response to the text information on the main screen and replies the operation information to the vehicle-mounted device; the operator completes the operation response to the text information on the standby screen and transmits the operation information to the main screen, and the main screen replies it to the vehicle-mounted device.

15. The hot standby system of the integrated human-machine interface device according to claim 14, wherein When the communication connection between the two human-machine interface devices is normal, the text information is displayed on the main screen, and the standby screen is only used to record the display and removal of the text information.

16. The hot standby system of the integrated human-machine interface device according to any one of claims 9-15, characterized in that, The two human-machine interface devices are also used to detect each other's vital signals. If one of the human-machine interface devices fails, the faulty human-machine interface device actively commands the other human-machine interface device to take over the interface display task of the entire vehicle-mounted device and enter the independent display state; Or, if one human-machine interface device detects that the other human-machine interface device fails, this human-machine interface device actively takes over the interface display task of the entire vehicle-mounted device and enters the independent display state.

17. The hot standby system of the integrated human-machine interface device according to claim 16, characterized in that, There are switching buttons set on the human-machine interfaces of two human-machine interface devices, which are used to, when one human-machine interface device fails, display the human-machine interface content on the failed human-machine interface device on the human-machine interface of the other human-machine interface device by clicking the switching button.

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