Virtual automatic flight control interface man-machine interaction system and method

Abstract

The invention belongs to the field of automatic flight control, and particularly relates to a virtual automatic flight control interface man-machine interaction system and method. The system comprises a cockpit comprehensive display control subsystem, a plurality of instruction resolving units, an automatic flight control panel, a cockpit comprehensive display control subsystem and a power control device, and the cockpit comprehensive display control subsystem comprises a numeric keyboard and a multifunctional display. The automatic flight control panel is crosslinked with the instruction resolving unit and the power control device through an HB6096 bus, the virtual interface resides on a multifunctional display of a cockpit comprehensive display control subsystem, the multifunctional display is crosslinked with the instruction resolving unit through an AFDX network bus, the multifunctional display is crosslinked with the power control device through the HB6096 bus, and the power control device is connected with the power control device through an AFDX network bus. The instruction resolving unit and the central alarm system are crosslinked through an AFDX network bus, and a numeric keyboard of the cockpit comprehensive display control system is connected with the multifunctional display through a system internal bus and used for sending signals such as target numerical values to the multifunctional display.

Description

Technical Field

[0001] The invention belongs to the field of automatic flight control, and in particular relates to a virtual automatic flight control interface human-computer interaction system and method. Background Art

[0002] The automatic flight control board is a component of the automatic flight control subsystem. It is used to connect and disconnect the automatic flight control subsystem and select the mode / model. It also has the functions of binding and displaying the altitude, speed, heading / track, vertical speed / track inclination, and is the main way for the automatic flight control subsystem to achieve human-computer interaction. Traditional automatic flight control boards are usually single redundant, and the failure rate of the automatic flight control board LCD display components is high, resulting in low mission reliability of the automatic flight control board, which is difficult to meet the long-flight, multi-scenario mission flight requirements of modern aircraft. Summary of the invention

[0003] Purpose of the invention: To provide a virtual automatic flight control interface human-computer interaction system and method to solve the problem that when the automatic flight control panel fails, the pilot cannot continue to perform long-duration and special-scenario flight missions that require automatic driving assistance, thereby improving the mission reliability of the automatic flight control subsystem.

[0004] Technical solution:

[0005] A virtual automatic flight control interface human-computer interaction system comprises: a cockpit integrated display control subsystem, a plurality of instruction solving units, an automatic flight control board, a cockpit integrated display control subsystem, and a power control device, wherein the cockpit integrated display control subsystem comprises a numeric keyboard and a multi-function display, the automatic flight control board is interconnected with the instruction solving unit and the power control device via an HB6096 bus, the virtual interface resides on the multi-function display of the cockpit integrated display control subsystem, the multi-function display is interconnected with the instruction solving unit via an AFDX network bus, the multi-function display is interconnected with the power control device via an HB6096 bus, the instruction solving unit is interconnected with a central warning system via an AFDX network bus, and the numeric keyboard of the cockpit integrated display control system is connected with the multi-function display via a system internal bus, and is used for sending signals such as target values ​​to the multi-function display.

[0006] A virtual automatic flight control interface human-computer interaction method, the method is performed by means of the above human-computer interaction system, the method comprising:

[0007] Step 1: After the automatic flight control board fails, activate the backup virtual interface and enter the backup working mode;

[0008] Step 2: After the automatic flight control board failure is restored, disconnect the backup virtual interface control, exit the backup working mode, and enter the normal working mode.

[0009] Furthermore, step 1 specifically includes:

[0010] Step 11: When the automatic flight control board fails, the automatic flight control board sends a fault signal to the instruction solving unit;

[0011] Step 12: The command solving unit disconnects the automatic driving function after receiving the fault signal;

[0012] Step 13: The command solving unit sends the automatic flight control board fault signal to the central warning system and the cockpit integrated display control system;

[0013] Step 14: The central warning system prompts the pilot that the current automatic flight control panel is faulty and the pilot can switch to the virtual interface to continue the automatic flight mission;

[0014] Step 15: After receiving the automatic flight control board fault signal, the cockpit integrated display control system activates the virtual interface;

[0015] Step 16: The pilot runs the backup working mode through the virtual interface.

[0016] Furthermore, step 14 specifically includes:

[0017] The central warning system displays the "automatic flight control panel failure" warning message on the PFD screen, reminding the pilot that the current automatic flight control panel is faulty and the pilot can switch to the virtual interface to continue the automatic flight mission.

[0018] Furthermore, step 15 specifically includes:

[0019] After receiving the fault signal from the automatic flight control panel, the cockpit integrated display control system sends the fault signal to the multi-function display, activates the virtual interface, and controls the "backup" button status light on the virtual interface to turn yellow and standby.

[0020] Furthermore, step 16 specifically includes:

[0021] When the pilot inputs the command to start the backup virtual interface by clicking or touching the "backup" button on the virtual interface, the multi-function display receives the valid status signal of the "backup" button on the virtual interface, the control button status light turns green, and the automatic flight control system starts to run the backup working mode.

[0022] Furthermore, step 2 specifically includes:

[0023] Step 21: When the automatic flight control board fault is restored, the automatic flight control board valid signal is sent to the instruction solver, and the instruction solver forwards the automatic flight control board valid signal to the multi-function display after receiving the valid signal for 25 cycles;

[0024] Step 22: The multi-function display control virtual interface prompts the pilot that the current automatic flight control board failure has been restored and the pilot can switch back to the normal automatic flight control function;

[0025] Step 23: If you want to continue the current working mode, click the "Backup" button on the virtual interface to input an invalid signal;

[0026] The multifunctional display exits the virtual interface after receiving an invalid signal; and sends an interface exit signal to the instruction solving unit;

[0027] After receiving the exit signal, the command solver sends the current automatic flight working mode, target value and other information to the automatic flight control board, lights up the corresponding button lights and display screen of the automatic flight control board, and enables the automatic flight control subsystem to continue to control the flight of the aircraft according to the previous state;

[0028] Step 24: If you want to reconnect to the normal function of the autopilot, press the on button on the automatic flight control panel. The automatic flight control panel will send the on signal to the command solver, and the command solver will forward the on signal to the multi-function display. After receiving the on signal, the multi-function display will control the virtual interface to exit, and the automatic flight control subsystem will operate normally and enter the default working mode.

[0029] Further, step 22 specifically includes: the multi-function display controls the virtual interface "backup" button status light to change from green working state to yellow, prompting the pilot that the current automatic flight control board failure has been recovered and the pilot can switch back to the normal automatic flight control function.

[0030] Beneficial effects:

[0031] The problem of the inability to use the automatic flight control panel when it fails is solved by designing a virtual interface, which improves the mission reliability of the automatic flight control subsystem and provides pilots with a convenient and easy-to-operate way to select the automatic flight function. This method enables the pilot to continue to perform flight missions that require the participation of the automatic flight control subsystem by activating the virtual automatic flight control panel after the automatic flight control panel fails, thus improving the mission reliability of the automatic flight control subsystem and better meeting the current long-duration, multi-scenario mission requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the human-computer interaction system of the virtual automatic flight control interface;

[0033] Figure 2 It is a virtual interface to enter the logical schematic diagram;

[0034] Figure 3 It is a virtual interface exit logic diagram. DETAILED DESCRIPTION

[0035] To solve the above problems, a virtual interface can be set on the primary flight display (multi-function display of the cockpit integrated display control subsystem) to realize the backup of the automatic flight control panel, improve the mission reliability of the automatic flight control subsystem, and reduce the pilot's driving burden. As a backup control interface, the virtual interface also has the functions of mode / mode selection and binding and display of altitude, speed, heading, track, vertical speed / track inclination, but based on safety and ergonomics, the functions of the automatic flight control panel and the virtual interface should be mutually inhibited; at the same time, because the virtual interface resides on the primary flight display and has no control components such as buttons, switches, knobs, and wheels, it is quite different from the automatic flight control panel in terms of control characteristics and human-computer interaction.

[0036] In order to solve the above technical problems and realize human-computer interaction of virtual automatic flight control interface, the present invention is realized by the following method:

[0037] a) Design requirements sorting

[0038] 1) Cross-linking requirements: In order to replace the automatic flight control board to perform the automatic flight mission, the virtual interface is mainly cross-linked with the automatic flight control calculation unit and the power control device to realize data transmission and reception through the bus network;

[0039] 2) Functional requirements: Based on the function of the automatic flight control board, the virtual interface is set on the integrated display of the onboard avionics system with touch screen or mouse selection functions, which can realize the automatic flight control subsystem working mode and mode selection, numerical binding and display functions. When the virtual interface is switched, the automatic flight control calculation unit sends an alarm signal to the central alarm subsystem to prompt the pilot of the current automatic driving status.

[0040] b) Virtual interface entry and exit logic design

[0041] The virtual interface is activated after receiving the automatic flight control board fault signal forwarded by the command settlement unit. When the pilot's connection command is received, the virtual interface controls the operation of the backup working mode. When the automatic flight control board fault is restored, the main flight control computer forwards the fault recovery signal to the multi-function display, and a fault recovery prompt is given on the virtual interface. When the pilot clicks the button on the virtual interface, the virtual interface exits, and the command settlement unit sends the current automatic flight working mode, target value and other information to the automatic flight control board, lights up the corresponding status lights and display screen, and continues to execute the automatic flight mission. Or the pilot directly presses the connection button on the automatic flight control board. After receiving the automatic flight control board connection signal, the multi-function display controls the virtual interface to exit, and the automatic flight control subsystem operates normally and enters the default working mode.

[0042] c) Virtual interface control logic design

[0043] The virtual interface can realize all the functions of the automatic flight control board. It has an automatic flight control subsystem working mode selection area, a functional mode selection area, a numerical binding and display area, and a virtual interface "backup" button. The function switching logic is consistent with the automatic flight control board.

[0044] Taking a medium-sized propeller aircraft quad-redundant architecture automatic flight control subsystem as an example, its virtual interface human-computer interaction system and method are designed.

[0045] 1. The automatic flight control subsystem consists of 4 command solving units and a dual-channel automatic flight control board. The automatic flight control board is interconnected with the command solving unit and the power control device through the HB6096 bus. The virtual interface resides on the multi-function display of the cockpit integrated display control subsystem, which is interconnected with the command solving unit through the AFDX network bus and the power control device through the HB6096 bus. The command solving unit is interconnected with the central warning subsystem through the AFDX network bus. The digital keyboard of the cockpit integrated display control subsystem sends target value and other signals to the multi-function display through the subsystem internal bus. The virtual interface interconnection relationship is as follows: Figure 1 shown.

[0046] 2. The virtual interface has functions such as activation, working mode, mode selection, value binding, and display. To achieve the above functions, the requirements for related subsystems are as follows:

[0047] 1) The cockpit integrated display control subsystem needs to provide a backup interface, and the functions in the interface can be selected by touch or mouse click;

[0048] 2) The cockpit integrated display control subsystem needs to provide a numerical input interface for numerical input on the virtual interface;

[0049] 3) The cockpit integrated display control subsystem must have the function of sending data such as working mode, mode and binding value to the automatic flight control subsystem;

[0050] 4) The central warning subsystem needs to provide automatic flight control panel fault display warning function.

[0051] 3. Virtual interface enters the logic Figure 2As shown, when the automatic flight control board fails, a fault signal is sent to the instruction solver unit, and the instruction solver unit disconnects the autopilot function after receiving the fault signal; at the same time, the automatic flight control board fault signal is sent to the central warning subsystem and the cockpit integrated display control subsystem, and the warning subsystem displays the "automatic flight control board fault" warning information on the PFD screen to remind the pilot that the current automatic flight control board is faulty and the virtual interface can be switched to continue the automatic flight mission; after receiving the automatic flight control board fault signal, the cockpit integrated display control subsystem sends the signal to the multi-function display, activates the virtual interface, and controls the "backup" button status light on the interface to turn yellow to prepare; when the pilot clicks or touches the "backup" button on the virtual interface, the multi-function display receives the virtual interface "backup" button valid status signal, the control button status light turns green, and the automatic flight control subsystem backup function starts to run.

[0052] 4. Virtual interface exit logic Figure 3 As shown, after the automatic flight control board failure is restored, a valid signal of the automatic flight control board is sent to the instruction solution unit. After receiving the valid signal for 25 cycles, the instruction solution unit forwards the signal to the multi-function display. The multi-function display controls the virtual interface "backup" button status light to change from green working state to yellow, prompting the pilot that the current automatic flight control board failure has been restored and the normal automatic flight control function can be switched back to; at this time, the pilot can choose whether to continue the current automatic flight working mode. If continuing the current working mode, click the "backup" button on the virtual interface. After receiving the invalid signal of the virtual interface "backup" button, the multi-function display controls the interface to exit, and at the same time exits the interface The signal is sent to the instruction solving unit. After receiving the invalid signal, the instruction solving unit sends the current automatic flight working mode, target value and other information to the automatic flight control board, lights up the corresponding button lights and display screens of the automatic flight control board, and enables the automatic flight control subsystem to continue to control the aircraft flight according to the previous status; if the pilot hopes to re-access the normal function of the automatic driving, he can press the on button on the automatic flight control board. The automatic flight control board will send the on signal to the instruction solving unit, and the instruction solving unit will forward the signal to the multi-function display. After receiving this signal, the multi-function display controls the virtual interface to exit, and the automatic flight control subsystem operates normally and enters the default working mode.

[0053] 5. During the operation of the virtual interface, the command solver sends the target initial value to the multi-function display, and displays the initial value on the virtual interface; at the same time, the multi-function display sends the automatic flight working mode / modal switch signal formed by the pilot's click or touch to the command solver, and the command solver realizes the connection or pre-position of the automatic flight control subsystem function according to the current flight state and the switch signal; the multi-function display sends the target binding value signal input by the numeric keyboard to the command solver, and the command solver realizes the tracking and holding function of the automatic flight control subsystem target value through control law calculation. The switching logic between the modes of the virtual interface is consistent with the automatic flight control board.

Claims

1. A virtual automatic flight control interface human-computer interaction system, characterized in that: include: The cockpit integrated display control subsystem, multiple command solving units, automatic flight control board, cockpit integrated display control subsystem, power control device, wherein the cockpit integrated display control subsystem includes a numeric keyboard and a multi-function display, the automatic flight control board is interconnected with the command solving unit and the power control device through the HB6096 bus, the virtual interface resides on the multi-function display of the cockpit integrated display control subsystem, the multi-function display is interconnected with the command solving unit through the AFDX network bus, the multi-function display is interconnected with the power control device through the HB6096 bus, the command solving unit is interconnected with the central warning system through the AFDX network bus, and the numeric keyboard of the cockpit integrated display control system is connected to the multi-function display through the system internal bus, which is used to send signals such as target values ​​to the multi-function display.

2. A virtual automatic flight control interface human-computer interaction method, characterized in that: The method is performed by means of the human-computer interaction system according to claim 1, and the method comprises: Step 1: After the automatic flight control board fails, activate the backup virtual interface and enter the backup working mode; Step 2: After the automatic flight control board failure is restored, disconnect the backup virtual interface control, exit the backup working mode, and enter the normal working mode.

3. The human-computer interaction method according to claim 2, characterized in that: Step 1 specifically includes: Step 11: When the automatic flight control board fails, the automatic flight control board sends a fault signal to the instruction solving unit; Step 12: The command solving unit disconnects the automatic driving function after receiving the fault signal; Step 13: The command solving unit sends the automatic flight control board fault signal to the central warning system and the cockpit integrated display control system; Step 14: The central warning system prompts the pilot that the current automatic flight control panel is faulty and the pilot can switch to the virtual interface to continue the automatic flight mission; Step 15: After receiving the automatic flight control board fault signal, the cockpit integrated display control system activates the virtual interface; Step 16: The pilot runs the backup working mode through the virtual interface.

4. The human-computer interaction method according to claim 3, characterized in that: Step 14 specifically includes: The central warning system displays the "automatic flight control panel failure" warning message on the PFD screen, reminding the pilot that the current automatic flight control panel is faulty. The pilot can switch to the virtual interface to continue the automatic flight mission.

5. The human-computer interaction method according to claim 3, characterized in that: Step 15 specifically includes: After receiving the fault signal from the automatic flight control panel, the cockpit integrated display control system sends the fault signal to the multi-function display, activates the virtual interface, and controls the "backup" button status light on the virtual interface to turn yellow and standby.

6. The human-computer interaction method according to claim 3, characterized in that: Step 16 specifically includes: When the pilot inputs the command to start the backup virtual interface by clicking or touching the "backup" button on the virtual interface, the multi-function display receives the valid status signal of the "backup" button on the virtual interface, the control button status light turns green, and the automatic flight control system starts to run the backup working mode.

7. The human-computer interaction method according to claim 2, characterized in that: Step 2 specifically includes: Step 21: When the automatic flight control board fault is restored, the automatic flight control board valid signal is sent to the instruction solver, and the instruction solver forwards the automatic flight control board valid signal to the multi-function display after receiving the valid signal for 25 cycles; Step 22: The multi-function display control virtual interface prompts the pilot that the current automatic flight control board failure has been restored and the pilot can switch back to the normal automatic flight control function; Step 23: If you want to continue the current working mode, click the "Backup" button on the virtual interface to input an invalid signal; The multifunctional display exits the virtual interface after receiving an invalid signal; and sends an interface exit signal to the instruction solving unit; After receiving the exit signal, the command solver sends the current automatic flight working mode, target value and other information to the automatic flight control board, lights up the corresponding button lights and display screen of the automatic flight control board, and enables the automatic flight control subsystem to continue to control the flight of the aircraft according to the previous state; Step 24: If you want to reconnect to the normal function of the autopilot, press the on button on the automatic flight control panel. The automatic flight control panel will send the on signal to the command solver, and the command solver will forward the on signal to the multi-function display. After receiving the on signal, the multi-function display will control the virtual interface to exit, and the automatic flight control subsystem will operate normally and enter the default working mode.

8. The human-computer interaction method according to claim 7, characterized in that: Step 22 specifically includes: the multi-function display controls the virtual interface "backup" button status light to change from green working state to yellow, prompting the pilot that the current automatic flight control board failure has recovered and the pilot can switch back to the normal automatic flight control function.

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