Display system, driving carriage and railway vehicle

Abstract

The invention provides a display system, a driving compartment and a rail vehicle, the system comprises a plurality of display screens, the plurality of display screens comprise at least one main display screen and at least one auxiliary display screen; the display host is in electric signal connection with each vehicle-mounted device and the plurality of display screens, and is used for respectively sending the data information of each vehicle-mounted device to the corresponding main display screen or the auxiliary display screen; the sound acquisition unit is electrically connected with the display host and is used for sending the collected voice signals to the display host; and the instruction input unit is electrically connected with the display host and is used for converting a manual operation instruction into an electric signal and sending the electric signal to the display host. According to the display system provided by the embodiment of the invention, a plurality of display screens can be jointly controlled through one display host, and the display screens only need to reserve related circuit designs of the LCD screens, so that the utilization rate of hardware resources is improved, the design cost is reduced, and the transmission efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of rail vehicles, and more particularly to a display system, a driver's cab, and a rail vehicle. Background Technology

[0002] To meet the needs of human-machine interface, current rail transit vehicles are generally equipped with network control display screens, passenger information system (PIS) display screens, signal dispatching screens, and 360-degree surround view screens for display and function control. Each display screen displays independently and belongs to different train subsystems to meet the functional requirements of vehicle control, information display, voice prompts, etc.

[0003] like Figure 1 The diagram shows the existing distribution of display screens on rail vehicles, including onboard display screens for the signaling system, 360° surround view monitoring screens, intelligent display terminal screens for the network control system, and video monitoring screens for the passenger information system. Each screen belongs to a different train system and is controlled by its own system host. Figure 2 As shown. This approach requires each display screen to adopt an integrated driver and display design, including a processor board, communication board, power supply board, etc., resulting in low hardware resource utilization. In addition, each display screen requires a separate host for control, meaning that information transmission between screens needs to be forwarded by their respective hosts, resulting in long information transmission links and transmission delays. Summary of the Invention

[0004] To address one of the aforementioned technical deficiencies, this application provides a display system, a driver's cab, and a rail vehicle.

[0005] A first aspect of this application provides a display system, the system comprising: Multiple displays, including at least one main display and at least one secondary display, wherein the main display and the secondary display are used to display data information of different in-vehicle devices respectively; The display host is electrically connected to each vehicle-mounted device and the multiple display screens, and is used to send the data information of each vehicle-mounted device to the corresponding main display screen or sub-display screen. The sound acquisition unit is electrically connected to the display host and is used to send the collected voice signal to the display host so that the display host can recognize the voice signal and perform interactive operations on the display screen or vehicle device based on the recognized information. The instruction input unit is electrically connected to the display host and is used to convert manual operation instructions into electrical signals and send the electrical signals to the display host so that the display host can perform interactive operations on the display screen or vehicle-mounted equipment according to the electrical signals.

[0006] The second aspect of the embodiment of the present application provides a driving compartment, the driving compartment comprising the display system of the first aspect of the embodiment of the present application, the plurality of display screens being arranged on a driver console, and the display host, the sound acquisition unit and the instruction input unit being arranged inside the driving compartment.

[0007] The third aspect of the embodiment of the present application provides a rail vehicle, characterized in that the rail vehicle comprises the driving compartment of the second aspect of the embodiment of the present application.

[0008] The display system provided in the embodiment of the present application can simultaneously control a plurality of display screens through one display host, the display screen itself only needs to reserve the related circuit design of the LCD screen, thereby improving the utilization rate of hardware resources, reducing the design cost, and improving the transmission efficiency. Meanwhile, through the joint control of the display screen, the sound acquisition unit and the instruction input unit and other related devices, the safety, convenience and intelligent level of vehicle driving are improved, and the demand of various train operation scenes can be met. BRIEF DESCRIPTION OF DRAWINGS

[0009] The accompanying drawings, which are included to provide a further understanding of the present application, constitute a part of the present application, the illustrative embodiments of the present application and the description thereof serve to explain the present application, and do not constitute an improper limitation on the present application. In the drawings: Figure 1 It is a schematic diagram of the distribution of the display screen of the existing rail vehicle; Figure 2 It is a schematic diagram of the display system architecture of the existing rail vehicle; Figure 3 It is a principle schematic diagram of the display system according to the first embodiment of the present application; Figure 4 It is an architecture diagram of the display system according to the first embodiment of the present application, wherein the number of display screens is three, the number of main display screens is one, and the number of auxiliary display screens is two; Figure 5 It is a principle schematic diagram of the display host according to the first embodiment of the present application; Figure 6 It is a principle schematic diagram of the display screen according to the first embodiment of the present application; Figure 7 It is a signal transmission schematic diagram of the sound acquisition unit and the display host according to the first embodiment of the present application; Figure 8 It is a circuit diagram of the instruction input unit according to the first embodiment of the present application. DETAILED DESCRIPTION

[0010] In order to make the technical solutions and advantages of the embodiments of the present application clearer and more apparent, the exemplary embodiments of the present application are further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0011] Embodiment 1 The present embodiment proposes a display system, as shown in the figure, which comprises a display screen, a display host, a sound collecting unit and an instruction input unit. The display screen, the sound collecting unit and the instruction input unit are all electrically connected with the display host, so that the display host can perform signal transmission and related control on the display screen, the sound collecting unit and the instruction input unit. Figure 3

[0012] Specifically, in the present embodiment, the number of the display screens is multiple. In the multiple display screens, the multiple display screens can be divided into a main display screen and a sub-display screen according to the type of information to be displayed. The main display screen and the sub-display screen can display data information of different vehicle-mounted devices according to requirements. For example, the main display screen can mainly display vehicle data that needs to be focused on during driving, and the sub-display screen can display other data in addition to the information displayed by the main display screen.

[0013] The sound collecting unit, which can be a microphone, is used to collect voice signals and send them to the display host for voice recognition and interactive operation.

[0014] The instruction input unit, which can be a touch input, a key input or a handle input, etc., can provide an instruction input area for the driver. The instruction input unit can convert the manual operation instructions of the driver on the instruction input area into electrical signals and send the electrical signals to the display host for instruction recognition and interactive operation.

[0015] The display host is the core processing unit of the display system in the present embodiment. The display host can perform information transmission on multiple display screens. The display host and the display screens can transmit signals through high-speed video lines. At the same time, the display host also interacts with various vehicle-mounted devices through a train network control system or a central control unit (CCU). The display host sends the data information sent by the vehicle-mounted devices to the corresponding display screens for display according to the requirements of the main display screen and the sub-display screen. The display host can also recognize the voice signals sent by the sound collecting unit and interact with the display screens or the vehicle-mounted devices according to the recognized information. For the instruction input unit, the display host can also interact with the display screens or the vehicle-mounted devices through the electrical signals sent by the instruction input unit. ​

[0016] More specifically, this embodiment takes three displays as an example, such as... Figure 4 As shown. The three displays include one main display and two secondary displays. Following conventional driving habits, the main display can be positioned in the center, and the two secondary displays can be located to the left and right of the main display, or above and below it, or both above or below it. This embodiment does not impose any special limitations. The size and resolution of the three displays are also not limited in this embodiment and can be set according to actual conditions. In this embodiment, the main display is 12.3 inches with a resolution of 1920. 720P resolution, with a 14.6-inch secondary display and a 1920p resolution. Taking 1080P as an example, the main display screen provides comprehensive vehicle information, primarily showing key vehicle data that requires attention during driving, such as vehicle speed, speed limit reminders, mileage, and real-time station information. Secondary display screens can be used for signal and network control, PIS monitoring, and 360-degree surround view data display. For example, one secondary display screen can function as a signal and network control screen, displaying information for vehicle signal dispatching and network control, while another secondary display screen can function as a PIS and 360-degree screen, displaying information for the PIS system and 360-degree surround view. Correspondingly, the display host needs to be connected to the host of each onboard device via the vehicle bus to receive data from each onboard device in real time. Of course, the onboard devices involved in this embodiment are only illustrative; in reality, the onboard devices that the display host needs to connect to can be adjusted according to actual circumstances, and this embodiment does not impose any special limitations.

[0017] In some alternative embodiments, the control and driving hardware of each traditional display screen is integrated into a single display host, while the display screens only retain the LCD module and related circuitry. Independent display and long-distance transmission between the display host and the display screens are achieved through a serializer / deserializer.

[0018] Specifically, such as Figure 5 As shown in this embodiment, each display screen is equipped with a deserializer; the main display screen has the main deserializer, and the secondary display screen has the secondary deserializer. The display host has two processor modules: a main processor module and a secondary processor module. The main processor module corresponds to the main display screen, and the secondary processor module corresponds to the secondary display screen.

[0019] For the main processor module, it is connected with the vehicle-mounted device which needs to display information in the main display screen through the communication interface, so that the relevant data information which needs to be displayed in the main display screen (hereinafter referred to as important information) can be received in real time. The main processor module can output the important information to the main serializer. The main serializer realizes signal transmission with the radio frequency connector in the main display screen, and finally the main deserializer in the main display screen analyzes and outputs, so as to display the important information on the main display screen. Each pair of main serializer and main deserializer corresponds to one main display screen, and when the number of main display screens increases or decreases, the number of main serializers and main deserializers increases or decreases by the same amount.

[0020] For the main processor module, it is connected with the vehicle-mounted device which needs to display information in the main display screen through the communication interface, so that the relevant data information which needs to be displayed in the main display screen (hereinafter referred to as important information) can be received in real time. The main processor module can output the important information to the main serializer. The main serializer realizes signal transmission with the radio frequency connector in the main display screen, and finally the main deserializer in the main display screen analyzes and outputs, so as to display the important information on the main display screen. Each pair of main serializer and main deserializer corresponds to one main display screen, and when the number of main display screens increases or decreases, the number of main serializers and main deserializers increases or decreases by the same amount.

[0021] In some optional embodiments, as shown in Figure 6 The main deserializer in the main display screen and the secondary deserializer in the secondary display screen both receive the AHDL video signal sent by the display host. The main deserializer and the secondary deserializer can process the AHDL video signal to output an I2C signal, and adjust the backlight of the main display screen and the secondary display screen through the I2C signal.

[0022] Specifically, in the embodiment, the main deserializer in the main display screen and the secondary deserializer in the secondary display screen can be implemented by AIM956 deserializer, and other deserializer models that can implement the technical solutions described in the embodiment can also be applied, and the embodiment does not make special limitations. When the AHDL video signal received from the display host passes through the main deserializer and the secondary deserializer, the main deserializer and the secondary deserializer can process the AHDL video signal to output an I2C signal. The backlight of the main display screen and the secondary display screen is adjusted through the I2C signal. In addition, the main deserializer and the secondary deserializer can also output pulse width modulation (PWM) to the display driver (MPQ3367AGR-ACE1 display driver selected in the embodiment) to control the display effect of the main display screen and the secondary display screen. Data connection can be realized between the main deserializer or the secondary deserializer and the display driver through the FPC connector, which will not be described here.

[0023] In some alternative embodiments, the display system further comprises a sound playing unit, which is electrically connected with the display host and receives audio signals sent by the main display screen for playing audio.

[0024] Specifically, the sound playing unit can be preferably a loudspeaker or a buzzer, etc. In the embodiment, the hardware design scheme of the main display screen is basically the same as that of the auxiliary display screen, and the main difference lies in the pin line sequence definition of the LCD module and the transmission of the audio signal. In the main display screen, the main deserializer can not only receive and output display information, but also receive audio signals sent by the display host and output the audio signals to the sound playing unit to play corresponding audio information.

[0025] It should be noted that in the embodiment, the number of sound playing units can also be multiple, wherein one sound playing unit can be associated on the main display screen to enable clear hearing of audio information during driving. In addition, at least one sound playing unit can also be arranged inside the driving cabin to expand the audio playing area, and two different audio information can also be played simultaneously.

[0026] In some alternative embodiments, a local voice recognition mode is adopted in the display host to realize voice interaction function. As shown in Figure 7 The single analog microphone MIC is connected with the radio frequency connector of the display host through the M12 connector. The data interaction and transmission between the two processor modules can also be realized through the Ethernet exchange chip between the main processor module and the auxiliary processor module. The voice information collected by the sound collecting unit can be transmitted between the main processor module and the auxiliary processor module of the display host, so that the display host can realize opening of the target interface in the main display screen and the auxiliary display screen and control of the functions of the vehicle-mounted devices such as air conditioners according to the voice information.

[0027] In some alternative embodiments, the instruction input unit is the interface for human-computer interaction of the display system, and the signal transmission between the instruction input unit and the display host can be realized through CAN signal and hard-wire signal mode.

[0028] Specifically, in the embodiment, the instruction input unit adopts a key input mode for instruction transmission. The instruction input unit comprises a plurality of keys arranged in parallel, and a resistor is arranged between every two adjacent keys to make each key correspond to different output voltages. The basic principle of the instruction input unit is to divide voltage through resistor series connection. The input voltage is 3.3V, and different resistors are used for voltage division, so that each key corresponds to different output voltages, and correspondingly, different output voltages can correspond to different instructions.

[0029] In this embodiment, the command input unit, in addition to button input, can also utilize the steering wheel as a base, placing the buttons on the steering wheel and arranging them on the left and right sides of the steering wheel according to driving habits. Figure 8 For example, in this embodiment, four command operation areas are set on both sides of the steering wheel: upper left, lower left, upper right, and lower right. The upper left area can be configured with four buttons (such as...). Figure 8 As shown in K1, K2, K3, and K4), three buttons can be configured in the lower left corner (e.g., ...). Figure 8 (As shown in K5, K6, and K7), four buttons can be configured in the upper right corner (such as...). Figure 8 As shown in K8, K9, K10, and K11, five buttons can be configured in the lower right corner (e.g., ...). Figure 8 (K12, K13, K14, and K15 shown). Resistors R1-R17 are voltage divider resistors respectively placed between two adjacent buttons. Their purpose is to divide the voltage using resistors with different resistance values, so that each button corresponds to a different output voltage. The number and distribution area of ​​the buttons mentioned above are only illustrative examples. The specific settings can be made according to actual conditions or driving habits. This embodiment does not impose any special limitations.

[0030] In some alternative embodiments, the command input unit can also be associated with the voice interaction function via the display host. That is, the command input unit can be used for hardware voice wake-up or software hot wake-up word activation. For example, when a driver presses a button representing a voice recognition command via the command input unit, the sound acquisition unit can be triggered to acquire the sound signal, and the display host can also perform corresponding interactive operations based on the sound signal.

[0031] In some alternative embodiments, the display host also has display screen fault redundancy.

[0032] Specifically, in this embodiment, as Figure 5 As shown, the main processor module and the sub-processor module in the display host can exchange data via an Ethernet switching chip, thereby enabling data sharing among multiple displays, including the main display and sub-displays. When one display malfunctions, the display host can switch the information displayed on the faulty display to another working display to ensure complete vehicle information display and guarantee driving safety.

[0033] In some optional embodiments, multiple displays can be designed as touchscreens. The display host can acquire the operation coordinates on each display and perform point operations on the displayed information based on the operation coordinates. These point operations include, but are not limited to, displaying drop-down menus, switching interfaces, and moving windows, so that the required display information can be viewed at any time during driving.

[0034] Example 2 The embodiment provides a driving compartment, which comprises a display system. The display system can refer to the content described in the embodiment 1, and details are not described herein. A plurality of display screens in the display system can be arranged on a driver console, and the arrangement position and distribution mode of the display screens can be set according to operation habits, information distribution and the like. The sound collecting unit is preferably placed close to the driver, so that the driver can conveniently perform voice control. The instruction input unit can be designed in the form of a steering wheel, so that the driver can conveniently operate.

[0035] Embodiment 3 The embodiment provides a rail vehicle, which comprises a driving compartment, and the driving compartment is provided with a display system. Details can refer to the content described in the embodiments 1 and 2, and details are not described herein.

[0036] In the present application, unless specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, can be detachably connected, or integrated; can be mechanically connected, or electrically connected or can communicate with each other; can be directly connected, or indirectly connected through an intermediate medium, can be the communication between two elements or the interaction between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0037] Although the preferred embodiments of the present application have been described, those skilled in the art can make further changes and modifications to the embodiments once they know the basic creative concept. Therefore, the appended claims are intended to include the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0038] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these modifications and variations.

Claims

1. A display system, characterized in that, The system includes: Multiple displays, including at least one main display and at least one secondary display, wherein the main display and the secondary display are used to display data information of different in-vehicle devices respectively; The display host is electrically connected to each vehicle-mounted device and the multiple display screens, and is used to send the data information of each vehicle-mounted device to the corresponding main display screen or sub-display screen. The sound acquisition unit is electrically connected to the display host and is used to send the collected voice signal to the display host so that the display host can recognize the voice signal and perform interactive operations on the display screen or vehicle device based on the recognized information. The instruction input unit is electrically connected to the display host and is used to convert manual operation instructions into electrical signals and send the electrical signals to the display host so that the display host can perform interactive operations on the display screen or vehicle-mounted equipment according to the electrical signals.

2. The system according to claim 1, characterized in that, The display host includes: The main processor module is used to receive and process data information sent by the vehicle-mounted device that needs to display information on the main display screen, and to transmit information with the main deserializer in the main display screen through the main serializer. The number of main serializers is the same as the number of main displays. The secondary processor module is used to receive and process data information sent by the vehicle-mounted device that needs to display information on the secondary display screen, and to transmit information with the secondary deserializer in the secondary display screen through a secondary serializer. The number of secondary serializers is the same as the number of secondary display screens.

3. The system according to claim 2, characterized in that, Both the main deserializer in the main display screen and the secondary deserializer in the secondary display screen receive AHDL video signals sent by the display host. The main deserializer and the secondary deserializer process the AHDL video signals and output I2C signals, which are then used to adjust the backlight of the main display screen and the secondary display screen.

4. The system according to claim 1, characterized in that, The instruction input unit includes multiple buttons arranged in parallel, with a resistor between every two adjacent buttons, and each button corresponds to a different output voltage.

5. The system according to claim 1, characterized in that, The display host is also used to receive voice command signals sent by the command input unit, and to control the sound acquisition unit according to the voice command signals.

6. The system according to claim 1, characterized in that, The display host is also used to switch the display information on the faulty display screen to other normal display screens when any display screen fails.

7. The system according to claim 2, characterized in that, The system also includes a sound playback unit, which is electrically connected to the display host. The display host is also used to receive audio signals sent by various vehicle-mounted devices and send the audio signals to the main display screen through the main serializer. The main deserializer of the main display screen outputs audio signals to the sound playback unit.

8. The system according to claim 1, characterized in that, All of the multiple displays are touchscreens, and the display host is also used to acquire the operation coordinates on each display and perform point selection operations on the displayed information according to the operation coordinates.

9. A driver's compartment, characterized in that, The driver's compartment includes the display system according to any one of claims 1 to 8, wherein the plurality of display screens are disposed on the driver's console, and the display host, sound acquisition unit and command input unit are disposed inside the driver's compartment.

10. A rail vehicle, characterized in that, The rail vehicle includes the driver's cab as described in claim 9.

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