Display screen redundancy system based on medium and small traffic volume vehicles and working method of display screen redundancy system

Abstract

The invention provides a display screen redundancy system based on medium and small traffic volume vehicles and a working method thereof, the system comprises a dual power supply module, an arbitration module, a dual display control module and a display module, the dual power supply module comprises a first power supply module and a second power supply module, the first power supply module and the second power supply module are respectively connected with the arbitration module, and the arbitration module is connected with the dual display control module. The dual-power supply module adopts redundancy setting and supplies power to a display screen redundancy system; one end of the arbitration module is connected with the dual-power module, and the other end is connected with the dual-display control module for monitoring the working state of the dual-display control module in real time; the double-display control module comprises a first display control module and a second display control module, the first display control module and the second display control module are respectively connected with the display module, and the double-display control module adopts redundancy setting and is used for controlling the display module; the display module comprises two display screens which are arranged at the two ends of the vehicle respectively and used for displaying vehicle running state information, fault information and safety operation prompts.

Description

Technical Field

[0001] The present invention relates to the field of intelligent transportation technology, and in particular to a display screen redundancy system based on small and medium-volume vehicles and a working method thereof. Background Art

[0003] The vehicle network equipment is numerous and complex, and the driver display screen can provide vehicle operation status information, fault information and safety operation prompts. At the same time, the driver and maintenance personnel can also set parameters, perform self-tests and system maintenance on the train according to the displayed information. Therefore, the driver display screen is one of the important guarantees for the normal operation of the vehicle, and the design of this part is of great significance to the vehicle driving safety.

[0004] The prior art has the following disadvantages:

[0005] (1) When the display screen power fails, it directly affects driving safety;

[0006] (2) The redundancy strategy is relatively simple. Each display control module is configured with a redundancy rule parsing module. There are a total of four modules for redundant switching, and the redundancy architecture is relatively complex.

[0007] (3) When the display fails, data may be lost;

[0008] (4) It does not have the capability of vehicle-to-ground self-transmission. Summary of the invention

[0009] According to the technical problems raised above, a display screen redundancy system based on small and medium-capacity vehicles and its working method are provided. The present invention mainly utilizes dual power modules, arbitration modules, dual display control modules and display modules, and improves the reliability of the driver's display screen through a redundant management strategy. At the same time, the display screen has a vehicle-to-ground self-transmission function for ground personnel to monitor and maintain, which greatly improves the safety of operation and facilitates ground personnel to view the vehicle operation status in real time.

[0010] The technical means adopted by the present invention are as follows:

[0011] A display screen redundancy system based on small and medium-sized transport vehicles includes: a dual power supply module, an arbitration module, a dual display control module and a display module, wherein:

[0012] The dual power supply module includes a first power supply module and a second power supply module, the first power supply module and the second power supply module are respectively connected to the arbitration module, and the dual power supply module adopts a redundant setting to supply power to the display screen redundant system;

[0013] One end of the arbitration module is connected to the dual power supply module, and the other end is connected to the dual display control module, for real-time monitoring of the working status of the dual display control module;

[0014] The dual display control module comprises a first display control module and a second display control module, wherein the first display control module and the second display control module are respectively connected to the display module, and the dual display control module adopts a redundant setting for controlling the display module;

[0015] The display module includes two display screens, which are respectively arranged at two ends of the vehicle and are used to display vehicle running status information, fault information and safety operation prompts.

[0016] Furthermore, the first power module and the second power module can independently supply power to the display screen redundancy system.

[0017] Furthermore, the arbitration module determines the working state of the dual display control module by real-time monitoring of the heartbeat signal sent by the dual display control module. When the arbitration module fails to detect the heartbeat signal for 2 consecutive seconds, it determines that the working state of the dual display control module is abnormal.

[0018] Furthermore, the arbitration module has an audible and visual alarm function. When it is detected that the dual display control module has no heartbeat signal for 2 seconds, it is determined that the working state is abnormal, and the audible and visual alarm function is triggered.

[0019] Furthermore, when the working state is normal, the first display control module is used as the main control unit; when the working state of the first display control module is abnormal, the second display control module is switched to the main control unit to maintain the normal operation of the display module.

[0020] Furthermore, the two display screens in the display module are redundantly configured, and the two display screens can synchronously display vehicle operating status information, fault information, and safety operation prompts; when one of the display screens fails, the other display screen can work normally independently.

[0021] Furthermore, the display module has firewall and wireless communication functions, and transmits parameters and content to the machine room workstation on the ground in real time through wireless communication. As a backup of the display screen, ground staff can monitor the status of the display module in real time to monitor the vehicle status.

[0022] The present invention also provides a working method of a display screen redundancy system based on small and medium-capacity vehicles, and the specific steps include:

[0023] S1, the dual power supply module supplies power to the arbitration module, the arbitration module monitors the working status of the dual display control modules in real time, takes the first display control module as the main control unit, and the arbitration module receives data output by the main control unit;

[0024] S2, the arbitration module sends the data output by the dual display control module to the display module, and visualizes the data on the display screen;

[0025] S3, when the arbitration module monitors the working status of the dual display control modules, if the working status of the first display control module and the second display control module are both normal, the current main control module is maintained;

[0026] If the arbitration module detects that the working state of the first display control module is abnormal, the second display control module is switched as the main control module and an audible and visual alarm is issued;

[0027] If the arbitration module detects that the working state of the second display control module is abnormal, the first display control module is kept as the main control module and an audible and visual alarm is issued;

[0028] If the arbitration module detects that the working states of the first display control module and the second display control module are both abnormal, the first display control module is maintained as the main control module, and an audible and visual alarm is issued.

[0029] Compared with the prior art, the present invention has the following advantages:

[0030] The present invention provides a display screen redundancy system based on small and medium-capacity vehicles and a working method thereof. The display screen adopts a redundant architecture of dual display control modules and dual power supplies to ensure that it can still work normally when a single display control module or a single power supply module fails. A dual-screen linkage method is adopted to ensure that when a display screen at one end fails, the other end can be directly used to continue operation without data loss. Each display control module has a self-checking function and can monitor the self-checking results of each other. A third-party arbitration module is used to decide which display control module to use as the main device, thereby simplifying the redundant architecture. The display screen has a vehicle-to-ground self-transmission function, which can transmit the on-screen data to the ground in real time as a backup, and can also be used by ground staff to monitor the real-time status of the vehicle.

[0031] The display screen redundancy system based on small and medium-capacity vehicles and the working method thereof provided by the present invention adopt a redundancy strategy, effectively solving the problem of loss of display content and data after a display screen failure, greatly improving the reliability of the display screen and enhancing the safety of operations.

[0032] Based on the above reasons, the present invention can be widely promoted in the fields of intelligent transportation and the like. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 creative labor.

[0034] Figure 1It is a structural diagram of the display screen redundancy system based on small and medium-capacity vehicles in the present invention.

[0035] Figure 2 The present invention is a flowchart of the working method of the display screen redundancy system based on small and medium-capacity vehicles.

[0036] Figure 3 4 is a diagram of a vehicle network architecture in an embodiment of the present invention. DETAILED DESCRIPTION

[0037] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the 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 creative work should fall within the scope of protection of the present invention.

[0038] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0039] like Figure 1 As shown, the present invention provides a display screen redundancy system based on small and medium-sized transport vehicles, including: a dual power supply module, an arbitration module, a dual display control module and a display module, wherein:

[0040] The dual power supply module includes a first power supply module and a second power supply module, the first power supply module and the second power supply module are respectively connected to the arbitration module, and the dual power supply module adopts a redundant setting to supply power to the display screen redundant system;

[0041] One end of the arbitration module is connected to the dual power supply module, and the other end is connected to the dual display control module, for real-time monitoring of the working status of the dual display control module;

[0042] The dual display control module comprises a first display control module and a second display control module, wherein the first display control module and the second display control module are respectively connected to the display module, and the dual display control module adopts a redundant setting for controlling the display module;

[0043] The display module includes two display screens, which are respectively arranged at two ends of the vehicle and are used to display vehicle running status information, fault information and safety operation prompts.

[0044] In specific implementation, as a preferred embodiment of the present invention, the first power module and the second power module can independently supply power to the display screen redundancy system.

[0045] In specific implementation, as a preferred embodiment of the present invention, the arbitration module determines the working status of the dual display control module by real-time monitoring the heartbeat signal emitted by the dual display control module. When the arbitration module fails to detect the heartbeat signal for 2 consecutive seconds, it is determined that the working status of the dual display control module is abnormal.

[0046] During implementation, the heartbeat signal can be bound by the application program, and the bottom layer provides an API (Application Programming Interface). When the application program exits abnormally, it can also identify and automatically switch the main and auxiliary working states of the display control module.

[0047] In specific implementation, as a preferred embodiment of the present invention, the arbitration module has an audible and visual alarm function. When it is detected that the dual display control module has no heartbeat signal for 2 seconds, it is determined that the working state is abnormal, and the audible and visual alarm function is triggered.

[0048] In specific implementation, as a preferred embodiment of the present invention, when the working state is normal, the first display control module is used as the main control unit; when the working state of the first display control module is abnormal, the second display control module is switched to the main control unit to maintain the normal operation of the display module.

[0049] In specific implementation, as a preferred embodiment of the present invention, the two display screens in the display module are redundantly configured, and the two display screens can synchronously display vehicle operating status information, fault information and safety operation prompts; when one of the display screens fails, the other display screen can work normally independently.

[0050] In specific implementation, as a preferred embodiment of the present invention, the display module has a firewall and wireless communication functions, and transmits parameters and content in real time to the machine room workstation on the ground through wireless communication. As a backup of the display screen, ground staff can monitor the status of the display module in real time to monitor the vehicle condition.

[0051] like Figure 2As shown, the present invention also includes a working method of a display screen redundancy system based on small and medium-sized transport vehicles, and the specific steps include:

[0052] S1, the dual power supply module supplies power to the arbitration module, the arbitration module monitors the working status of the dual display control modules in real time, takes the first display control module as the main control unit, and the arbitration module receives data output by the main control unit;

[0053] S2, the arbitration module sends the data output by the dual display control module to the display module, and visualizes the data on the display screen;

[0054] S3, when the arbitration module monitors the working status of the dual display control modules, if the working status of the first display control module and the second display control module are both normal, the current main control module is maintained;

[0055] If the arbitration module detects that the working state of the first display control module is abnormal, the second display control module is switched as the main control module and an audible and visual alarm is issued;

[0056] If the arbitration module detects that the working state of the second display control module is abnormal, the first display control module is kept as the main control module and an audible and visual alarm is issued;

[0057] If the arbitration module detects that the working states of the first display control module and the second display control module are both abnormal, the first display control module is maintained as the main control module, and an audible and visual alarm is issued.

[0058] Example

[0059] like Figure 1 As shown, the present invention provides a display screen redundancy system based on small and medium-capacity vehicles and its working method. The content displayed on the driver's display screen is not only a reference indicator for the driver's driving operation, but also the most important parameter required for ground operation and maintenance. The display screen has the ability of vehicle-to-ground self-transmission, and can transmit all content information displayed on it to the ground through a 4G / 5G module for remote monitoring and maintenance by ground personnel.

[0060] In this embodiment, in order to improve the reliability of the display screen, the display screen is designed to have two power supplies, and each power module can independently ensure the normal operation of the display screen. The arbitration module receives the output of the two power modules and transmits it to the display control module and the display module. The display screen is designed to have two display control modules, both of which have self-detection functions and can monitor the self-detection results of each other. The first display control module is the main control module by default. When the main control module is normal, the signal output by the main control module is used by default. If the main control module fails, the system switches to the backup module, that is, the second display control module. If both fail, the display screen will complete the system reconstruction according to the specified algorithm.

[0061] Vehicle network architecture Figure 3 As shown, a driver display screen is set in each Mc car, and the two are redundant. When the activation end is operated, the display screen at the other end can display on the same screen. When the Mc1 end fails, the Mc2 end can retain the real-time display content and operation of the Mc1 end, and the double-end display screens have the ability of vehicle-to-ground self-transmission, and can transmit data to the ground in real time. When the Mc1 end fails, the Mc2 end can continue to transmit data from the vehicle to the ground.

[0062] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0063] In the above embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0064] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of the units can be a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0065] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0066] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0067] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk and other media that can store program codes.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. 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 replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A display screen redundancy system based on small and medium-sized transport vehicles, characterized in that: include: Dual power supply module, arbitration module, dual display control module and display module, wherein: The dual power supply module includes a first power supply module and a second power supply module, the first power supply module and the second power supply module are respectively connected to the arbitration module, and the dual power supply module adopts a redundant setting to supply power to the display screen redundant system; One end of the arbitration module is connected to the dual power supply module, and the other end is connected to the dual display control module, for real-time monitoring of the working status of the dual display control module; The dual display control module comprises a first display control module and a second display control module, wherein the first display control module and the second display control module are respectively connected to the display module, and the dual display control module adopts a redundant setting for controlling the display module; The display module includes two display screens, which are respectively arranged at two ends of the vehicle and are used to display vehicle running status information, fault information and safety operation prompts.

2. The display screen redundancy system based on small and medium-capacity vehicles according to claim 1 is characterized in that: The first power supply module and the second power supply module can independently supply power to the display screen redundancy system.

3. The display screen redundancy system based on small and medium-capacity vehicles according to claim 1 is characterized in that: The arbitration module determines the working state of the dual display control module by real-time monitoring of the heartbeat signal sent by the dual display control module. When the arbitration module fails to detect the heartbeat signal for 2 consecutive seconds, it determines that the working state of the dual display control module is abnormal.

4. The display screen redundancy system based on small and medium-capacity vehicles according to claim 1 is characterized in that: The arbitration module has an audible and visual alarm function. When it is detected that the dual display control module has no heartbeat signal for 2 seconds, it is determined that the working state is abnormal, and the audible and visual alarm function is triggered.

5. The display screen redundancy system based on small and medium-capacity vehicles according to claim 1 is characterized in that: When the working state is normal, the first display control module is used as the main control unit; when the working state of the first display control module is abnormal, the second display control module is switched to the main control unit to maintain the normal operation of the display module.

6. The display screen redundancy system based on small and medium-capacity vehicles according to claim 1 is characterized in that: The two display screens in the display module are redundantly configured, and the two display screens can synchronously display vehicle operating status information, fault information, and safety operation prompts; when one of the display screens fails, the other display screen can work normally independently.

7. The display screen redundancy system based on small and medium-capacity vehicles according to claim 1 is characterized in that: The display module has firewall and wireless communication functions, and transmits parameters and content to the ground machine room workstation in real time through wireless communication. As a backup of the display screen, ground staff can monitor the status of the display module in real time to monitor the vehicle condition.

8. A working method of a display screen redundancy system based on small and medium-capacity vehicles, characterized in that: The specific steps include: S1, the dual power supply module supplies power to the arbitration module, the arbitration module monitors the working status of the dual display control modules in real time, takes the first display control module as the main control unit, and the arbitration module receives data output by the main control unit; S2, the arbitration module sends the data output by the dual display control module to the display module, and visualizes the data on the display screen; S3, when the arbitration module monitors the working status of the dual display control modules, if the working status of the first display control module and the second display control module are both normal, the current main control module is maintained; If the arbitration module detects that the working state of the first display control module is abnormal, the second display control module is switched as the main control module and an audible and visual alarm is issued; If the arbitration module detects that the working state of the second display control module is abnormal, the first display control module is kept as the main control module and an audible and visual alarm is issued; If the arbitration module detects that the working states of the first display control module and the second display control module are both abnormal, the first display control module is maintained as the main control module, and an audible and visual alarm is issued.

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