An integrated control panel for aircraft refueling and dumping

Abstract

This application provides an integrated control panel for aircraft refueling / discharging, belonging to the field of aviation ground fuel technology. It includes: a mode selection module for switching between multiple operating modes; an automatic refueling control module for adjusting the preset fuel quantity in automatic refueling mode, controlling the start and stop of the automatic refueling process, and performing a pre-check of the refueling solenoid valve before each automatic refueling; a manual fuel control module for manually controlling the opening and closing of the fuel tank solenoid valve; a display module communicatively connected to the mode selection module, automatic refueling control module, and manual fuel control module, for displaying the status and fault information of each module; an over / under power switch for controlling the power supply to and from the refueling / discharging control panel; and a power switching switch for controlling whether the refueling / discharging control panel is powered by battery or onboard busbar. This application achieves integrated control, optimizes the operating logic, and improves the efficiency, reliability, and safety of refueling / discharging.

Description

Technical Field

[0001] This application relates to the field of aviation ground fuel technology, and in particular to an integrated control panel for aircraft refueling and dumping. Background Technology

[0002] The refueling control panel for aircraft is usually installed near the refueling port on the wing. It is used by ground refueling personnel to perform operations such as refueling, draining, and transferring fuel between the aircraft's various fuel tanks to ensure that the aircraft carries enough fuel to complete each flight mission.

[0003] The prior art CN118907420A discloses an aircraft refueling and dumping control panel. This control panel has a reasonable functional design, rich display area, strong versatility and interactivity, and can efficiently realize automatic refueling, manual refueling, dumping, and transfer of fuel operations.

[0004] Aircraft fuel systems typically have a human-machine interface, such as a control panel, that controls refueling and dumping. These panels usually include a display module to provide ground operators with necessary information such as fuel levels; a function selection module to provide different control functions, enabling switching between various modes such as ground refueling, dumping, and fuel transfer; and switches to control various valves during refueling and dumping.

[0005] Figure 1 An example of a conventional aircraft refueling / discharging control panel is shown, comprising five functional areas: a mode selection module, a preset fuel level adjustment module, a power supply selection and equipment testing module, a system mode and status indication module, and a manual refueling valve control module. It also includes six display screens: a mode selection display screen, a total fuel level and preset fuel level display screen, a system status display screen, a left fuel tank level display screen, a middle fuel tank level display screen, and a right fuel tank level display screen. Refueling / discharging control of the aircraft is achieved through the combination of switch controls in different areas and the displays on multiple screens.

[0006] Clearly, the above-mentioned types of fuel filling and discharging control panels suffer from problems such as scattered functional modules and cumbersome operation.

[0007] On the one hand, existing fuel filling and dispensing control panels, designed to increase interactivity with ground personnel, have broken down their functional modules. While this design provides each function with a corresponding display screen or button, it is overly cumbersome. The information conveyed by the panel is scattered and cannot provide quick and intuitive feedback to ground refueling personnel. During fuel filling and dispensing, ground operators need to observe multiple display screens to know the current fuel level in the tank and system status information, which is inconvenient when they need to promptly cut off fuel filling and dispensing operations based on real-time status.

[0008] On the other hand, the health status of sensors and valves in the fuel system determines the accuracy of fuel quantity information. If this information is not promptly and comprehensively relayed to ground operators, it could lead to a full tank or even fuel overflow. Previous fuel dispensing control panels focused primarily on fuel dispensing control functions, neglecting the transmission of system fault information and refueling status information. Summary of the Invention

[0009] In view of this, the present application provides an integrated control panel for aircraft refueling and dumping. Through a simple and easy-to-use human-machine interface, it reduces the number of operation steps without affecting the integrity of the functions, improves the efficiency of ground operators in refueling and dumping, and provides richer system status and fault information, thereby enhancing the safety and reliability of aircraft refueling and dumping.

[0010] This application provides an integrated control panel for aircraft refueling and dumping, including a mode selection module, an automatic refueling control module, a manual fuel control module, a display module, an up / down switch, and a power switching switch.

[0011] The mode selection module is used to switch between multiple operating modes, including shutdown mode, automatic refueling mode, manual refueling mode, oil discharge mode, and ground transfer mode. The automatic refueling control module is used to adjust the preset oil quantity in automatic refueling mode, control the start and stop of the automatic refueling process, and perform a pre-check of the refueling solenoid valve before each automatic refueling. The fuel manual control module is used to manually control the opening and closing of the fuel tank solenoid valve for manual refueling, draining and transferring operations; The display module is communicatively connected to the mode selection module, the automatic refueling control module, and the manual fuel control module, and is used to display the status and fault information of each module. The power switch is used to control the power supply to and from the oil filling / discharging control panel; The power switching switch is used to control the fuel filling and discharging control panel to select between battery power or onboard busbar power.

[0012] According to a specific implementation of an embodiment of this application, the display module includes a left-wing fuel tank level display area, a center-wing fuel tank level display area, a right-wing fuel tank level display area, a total fuel tank level display area, a standby display area, and a preset fuel level display area. The left-wing fuel tank level display area, the center-wing fuel tank level display area, the right-wing fuel tank level display area, and the total fuel tank level display area are respectively used to indicate the fuel level information of the corresponding fuel tank on the aircraft when there is no fault in the fuel system. The preset fuel level display area is used to indicate the current operating mode of the fuel system, the total fuel level information of the aircraft's fuel tanks, or fault information. The standby display area is used to display the preset fuel level adjustment threshold when the preset fuel level is set in automatic refueling mode.

[0013] According to a specific implementation of an embodiment of this application, a clock character is provided in the preset fuel level display area, and the clock character is displayed when the fuel system is in the automatic refueling process.

[0014] According to a specific implementation of an embodiment of this application, the automatic refueling control module includes a preset fuel quantity adjustment switch and an automatic refueling operation switch. Both the preset fuel quantity adjustment switch and the automatic refueling operation switch are set as three-position transient switches. When the automatic refueling operation switch is turned to the upper position and the preset fuel quantity has been correctly set, the fuel system starts to refuel automatically, and the automatic refueling status is displayed in the preset fuel quantity display area. When the automatic refueling operation switch is turned to the lower position, the fuel system stops to refuel automatically.

[0015] According to a specific implementation of the present application, the automatic refueling operation switch is also used for pre-checking the refueling solenoid valve before each automatic refueling. When the automatic refueling operation switch is turned to the lower position and held for a preset time, the pre-checking of the refueling solenoid valve is started. The pre-checking results of the refueling solenoid valves of the left wing, the center wing, and the right wing are displayed in the fuel level display area of ​​the left wing, the fuel level display area of ​​the center wing, and the fuel level display area of ​​the right wing, respectively. The pre-checking results of the refueling solenoid valves and the fuel level information of the fuel tanks are displayed alternately.

[0016] According to a specific implementation of an embodiment of this application, a preset fuel quantity adjustment switch is used to adjust the preset fuel quantity in automatic refueling mode. When the preset fuel quantity adjustment switch is turned to the upper position, the preset fuel quantity increases, and the maximum value of the preset fuel quantity adjustment threshold is displayed in the standby display area. When the preset fuel quantity adjustment switch is turned to the lower position, the preset fuel quantity decreases, and the minimum value of the preset fuel quantity adjustment threshold is displayed in the standby display area.

[0017] According to one specific implementation of the embodiments of this application, the fuel manual control module includes three manual refueling toggle switches, which respectively control the fuel tank refueling valves of the left wing, center wing and right wing.

[0018] According to a specific implementation of this application, all three manual refueling toggle switches are configured as two-position toggle switches. When the manual refueling toggle switch is to the upper position, the fuel tank refueling valve opens; when the manual refueling toggle switch is to the lower position, the fuel tank refueling valve closes. When the aircraft refueling control panel is powered on for the first time, in manual refueling mode, in refueling mode, or in ground transfer mode, if any one of the manual refueling toggle switches is not in the lower position, refueling inhibition information is displayed in the display module.

[0019] According to a specific implementation of the present application, the mode selection module is set as a rotary switch that rotates around a rotation axis in a clockwise or counterclockwise direction. The rotary switch has multiple operating mode indicators along its outer periphery in the circumferential direction, and the rotary switch has an indicator axis along its radial direction. When the rotary switch is rotated, the operating mode indicator pointed to by the indicator axis is the current operating mode.

[0020] According to a specific implementation of an embodiment of this application, the display module includes an LED display screen, and the LED display screen is respectively divided into a left wing fuel tank fuel level display area, a central wing fuel tank fuel level display area, a right wing fuel tank fuel level display area, a total fuel tank fuel level display area, a spare display area, and a preset fuel level display area.

[0021] Beneficial effects: The integrated control aircraft refueling and dumping control panel in this application embodiment retains the functions of the existing refueling and dumping control panel, and integrates control. It has a more complete and comprehensive design for automatic refueling function and status information display, optimizes the operation logic, improves the reliability and safety of refueling and dumping, provides ground operators with a better human-machine interaction experience, and achieves more flexible control of refueling and dumping status switching while ensuring refueling and dumping efficiency. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 The existing oil filling / discharging control panel; Figure 2 This is a schematic diagram of a fuel filling / discharging control panel according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the front chessboard display of the fuel filling / discharging control panel when it is started according to an embodiment of the present invention; Figure 4 This is a schematic diagram of a reverse chessboard display when the fuel filling / discharging control panel is started according to an embodiment of the present invention; Figure 5 This is a schematic diagram of an oil level display using "lb" units according to an embodiment of the present invention; Figure 6 This is a schematic diagram of an oil quantity display using "kg" units according to an embodiment of the present invention; Figure 7 This is a schematic diagram showing the pre-inspection status of a refueling solenoid valve according to an embodiment of the present invention; Figure 8 This is a schematic diagram showing the pre-inspection results of a refueling solenoid valve according to an embodiment of the present invention; Figure 9 This is a schematic diagram showing the preset oil quantity of "11000kg" according to an embodiment of the present invention. Figure 10 This is a schematic diagram of an automatic refueling status clock character display according to an embodiment of the present invention; Figure 11 This is a schematic diagram of an automatic refueling completion display according to an embodiment of the present invention; Figure 12 This is a schematic diagram of an automatic refueling termination display according to an embodiment of the present invention; Figure 13 A schematic diagram of a control panel for adding or discharging oil according to an embodiment of the present invention, showing "Close all valves - Suppression"; Figure 14 This is a schematic diagram showing the manual refueling mode according to an embodiment of the present invention; Figure 15 This is a schematic diagram showing the oil discharge mode according to an embodiment of the present invention; Figure 16 This is a schematic diagram showing the ground transmission mode according to an embodiment of the present invention; Figure 17 This is a schematic diagram of a full fuel tank alarm display for the left wing according to an embodiment of the present invention; Figure 18 This is a schematic diagram of a fuel tank overflow alarm display according to an embodiment of the present invention; Figure 19 A schematic diagram illustrating an unbalanced wing fuel tank and low fuel level on the left wing according to an embodiment of the present invention; Figure 20 This is a schematic diagram of a high oil level sensor fault display according to an embodiment of the present invention; Figure 21 This is a schematic diagram of a measurement system fault display according to an embodiment of the present invention; Figure 22 This is a schematic diagram of a valve fault display according to an embodiment of the present invention; Figure 23 This is a schematic diagram of a measurement system fault display according to an embodiment of the present invention; Figure 24 This is a schematic diagram of a fault display on the fuel filling / draining control panel according to an embodiment of the present invention.

[0024] In the diagram: PB1, fuel filling / discharging control panel; M1, mode selection module; M2, automatic refueling control module; M3, manual fuel control module; M4, display module; DIS100, display screen; SW1, mode selection switch; SW2, preset fuel quantity adjustment switch; SW3, automatic refueling operation switch; SW4, left wing fuel tank refueling solenoid valve switch; SW5, central wing fuel tank refueling solenoid valve switch; SW6, right wing fuel tank refueling solenoid valve switch; SW7, power on / off switch; SW8, power switching switch. Detailed Implementation

[0025] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0026] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0028] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The illustrations only show the components related to this application and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0029] Furthermore, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that the described aspects can be practiced without these specific details.

[0030] Existing fuel filling and discharging control panels, such as Figure 1 As shown, to complete an automatic refueling operation, first rotate the mode selection knob (K1). When you observe the automatic refueling mode appear on the display screen (DIS100) and the display screen (DIS300) shows that the system status is normal, then toggle the four-way reset switch (K1). Figure 1 The SW4 panel requires adjusting a preset fuel level to complete the preset fuel level setting. While this adjustment method is quick, it does not limit the preset fuel level threshold. Furthermore, the panel lacks a switch to start or stop automatic refueling, making it impossible to intervene in emergency situations where automatic refueling needs to be stopped.

[0031] Therefore, this invention proposes an integrated control panel for aircraft refueling and dumping. Through a simple and user-friendly human-machine interface, it reduces operational steps without compromising functionality, improving the efficiency of refueling and dumping for ground operators. Simultaneously, it provides richer system status and fault information, enhancing the safety and reliability of aircraft refueling and dumping. A detailed description is provided below with reference to the accompanying drawings.

[0032] Reference Figure 2 The aircraft refueling / discharge control panel PB1 in this embodiment includes a mode selection module M1, an automatic refueling control module M2, a manual fuel control module M3, a display module M4, a power switch SW7, and a power switching switch SW8. The mode selection module M1 is used to switch between multiple operating modes, including a shutdown mode, automatic refueling mode, manual refueling mode, fuel discharge mode, and ground transfer mode. The automatic refueling control module M2 is used to adjust the preset fuel quantity in automatic refueling mode, control the start and stop of the automatic refueling process, and perform a pre-check of the refueling solenoid valve before each automatic refueling. The manual fuel control module M3 is used to manually control the opening and closing of the fuel tank solenoid valve for manual refueling, fuel discharge, and transfer operations. The display module M4 is communicatively connected to the mode selection module M1, the automatic refueling control module M2, and the manual fuel control module M3, and displays the status and fault information of each module. The power switch SW7 controls the power supply to and from the refueling / discharge control panel PB1. The power switching switch SW8 controls whether the refueling / discharge control panel PB1 is powered by the battery or the onboard busbar.

[0033] In this embodiment, the fuel filling and discharging control panel PB1 provides intuitive and comprehensive system operating status and fault information through the mode selection module M1 and the display module M4. The automatic refueling control module M2 and the display module M4 work together to allow ground operators complete control over the automatic refueling function of the fuel system. Compared to existing fuel filling and discharging control panels, this invention improves the automatic refueling control logic, enhances the ease of use of the panel, and improves the safety and reliability of ground-based fuel filling and discharging.

[0034] In practical implementation, the power supply for the control panel is provided by a power switch SW7 (with a red protective cover) and a power selector switch SW8 on the left side of the panel. When the power switch SW7 is in the upper position, the fuel filling / discharging control panel PB1 is powered on; when it is in the lower position, the fuel filling / discharging control panel PB1 is de-powered. When the power selector switch SW8 is in the upper position, the fuel filling / discharging control panel PB1 is powered by the battery; when it is in the lower position, the fuel filling / discharging control panel PB1 is powered by the on-machine busbar. To the right of the power switches SW7 and SW8 are the mode selection module M1, the automatic refueling control module M2, the manual fuel control module M3, and the display module M4. The mode selection module M1, the automatic refueling control module M2, and the manual fuel control module M3 each consist of one or more switches of different types. The result of toggling or rotating these switches is reflected on the display screen in the display module M4, achieving integrated control of fuel filling / discharging.

[0035] In one embodiment, the mode selection module M1 is configured as a rotary switch (mode selection switch SW1) that rotates clockwise or counterclockwise around a rotation axis. The rotary switch has multiple operating mode indicators along its outer periphery and an indicator axis along its radius. When the rotary switch is rotated, the operating mode indicator pointed to by the indicator axis is the current operating mode.

[0036] Specifically, rotating the rotary switch switches between Automatic Refueling (AUTO), Off (OFF), Manual Refueling (MAN), Defuel (DEFUEL), and Ground Transfer (XFR) modes. The preset fuel level display area (PRESEL) in the display module M4 will synchronously indicate the fuel system's current mode; for example, Automatic Refueling (AUTO) displays the total remaining fuel level, Off (MAN) displays "0kg", Manual Refueling (MAN) displays "MANUAL", Defuel (DEFUEL) displays "DEFUEL", and Ground Transfer (XFR) displays "FUEL XFR".

[0037] In one embodiment, the automatic refueling control module M2 includes a preset fuel quantity adjustment switch SW2 and an automatic refueling operation switch SW3. Both the preset fuel quantity adjustment switch SW2 and the automatic refueling operation switch SW3 are set as three-position transient switches. When the automatic refueling operation switch SW3 is switched to the upper position and the preset fuel quantity has been correctly set, the fuel system starts automatic refueling. The automatic refueling status is displayed in the preset fuel quantity display area so that the operator can monitor the automatic refueling process in real time. When the automatic refueling operation switch SW3 is switched to the lower position, the fuel system stops automatic refueling.

[0038] In practical implementation, the automatic refueling control module M2 is located to the right of the display module M4. It consists of two three-position transient switches, with the default position being the middle position. In this position, the refueling control panel PB1 does not operate. The switch automatically returns to its original position after being moved to the upper or lower position and released. The automatic refueling operation switch SW3 directly controls the automatic refueling operation and initiates a pre-check of the refueling solenoid valve. Automatic refueling can be started when the automatic refueling operation switch SW3 is moved to the upper position and the preset fuel quantity has been correctly set. During automatic refueling, the ground operator can stop automatic refueling at any time by simply moving the automatic refueling start / stop / pre-check switch to the lower position; moving the automatic refueling operation switch SW3 to the lower position stops automatic refueling. This operation allows the ground operator to respond to emergencies and promptly terminate the automatic refueling process, avoiding unnecessary losses. If the initial preset fuel quantity does not meet the requirements, the automatic refueling can be terminated, and the preset fuel quantity can be readjusted and the automatic refueling can be restarted.

[0039] Furthermore, the automatic refueling operation switch SW3 is also used for pre-checking the refueling solenoid valve before each automatic refueling. When the automatic refueling operation switch SW3 is switched to the lower position and held for a preset time, the refueling solenoid valve pre-check is initiated. The pre-check results of the refueling solenoid valves of the left wing, center wing, and right wing are displayed in the fuel level display areas of the left wing, center wing, and right wing, respectively. The pre-check results of the refueling solenoid valves and the fuel level information are displayed alternately.

[0040] This embodiment adds a self-test function to the refueling solenoid valve to confirm whether the automatic refueling function is available. Simply turn the automatic refueling operation switch SW3 to the lower position and hold it for five seconds to initiate the refueling solenoid valve pre-test. During the refueling solenoid valve pre-test, the panel will display "SOV TEST", "IN", or "PROGRESS" to indicate the pre-test status. Figure 7 This information will be displayed alternately with fuel level information to help ground operators determine whether the fuel system is undergoing the correct pre-check operation. Once the solenoid valve pre-check is complete, the health status of the corresponding fuel tank solenoid valve will be indicated in the LEFT, MID, and RIGHT display areas, respectively. Figure 8As shown, if the operation is normal, "PASS" is displayed; otherwise, "FAIL" is displayed. Ground operators can determine whether to continue automatic refueling based on the pre-inspection results. This design ensures the correct execution of the automatic refueling function and avoids problems such as oil leakage caused by valve malfunctions preventing timely termination of automatic refueling, effectively improving the safety and reliability of automatic ground refueling.

[0041] Furthermore, the preset fuel quantity adjustment switch SW2 is used to adjust the preset fuel quantity in the automatic refueling mode. When the preset fuel quantity adjustment switch SW2 is turned to the upper position, the preset fuel quantity increases, and the maximum value of the preset fuel quantity adjustment threshold is displayed in the standby display area. When the preset fuel quantity adjustment switch SW2 is turned to the lower position, the preset fuel quantity decreases, and the minimum value of the preset fuel quantity adjustment threshold is displayed in the standby display area.

[0042] In this embodiment, the fuel filling / discharging control panel PB1 selects a three-stage stepped increment based on the holding time of the operator's toggle switch to quickly set the preset fuel quantity. The fuel filling / discharging control panel PB1 uses the maximum / minimum preset fuel quantity given by the measurement system as the preset fuel quantity adjustment threshold to ensure that the ground operator will not set a preset fuel quantity value that exceeds the limit, thus guaranteeing the correctness and rationality of the preset fuel quantity adjustment value.

[0043] In one embodiment, the manual fuel control module M3 includes three manual refueling toggle switches, which respectively control the fuel tank refueling valves of the left wing, center wing, and right wing. Figure 2 The left wing fuel tank refueling solenoid valve switch SW4, the central wing fuel tank refueling solenoid valve switch SW5, and the right wing fuel tank refueling solenoid valve switch SW6.

[0044] Furthermore, all three manual refueling toggle switches are configured as two-position switches. When the manual refueling toggle switch is to the upper position, the fuel tank refueling valve opens; when the manual refueling toggle switch is to the lower position, the fuel tank refueling valve closes. When the aircraft refueling / discharging control panel PB1 is powered on for the first time, in manual refueling mode, in discharging mode, or in ground transfer mode, if any one of the manual refueling toggle switches is not in the lower position, refueling inhibition information will be displayed in the display module M4 to instruct ground operators to operate according to regulations, ensuring the safety and standardization of the refueling process.

[0045] In practice, protective measures are in place to prevent improper refueling and dumping operations. When ground operators attempt to manually refuel, dump fuel, or transfer fuel over the ground, if, due to misoperation, the mode selection switch SW1 is switched to the corresponding mode and any of the manual refueling switches for the left wing, center wing, or right wing are not in the off position, the display module M4 will show the characters "CLOSE ALL VALVES" and "INHIBIT" to instruct ground operators to operate correctly. This effectively prevents the fuel system from performing unexpected refueling or dumping operations due to improper operation.

[0046] In one embodiment, the display module M4 is configured to provide ground operators with information such as the current onboard fuel level, preset fuel level and adjustment threshold, product and fuel system status indications, etc., for use in automatic refueling, manual fuel addition / discharge, and fuel system troubleshooting operations. Specifically, the display module M4 includes a left wing fuel tank level display area, a center wing fuel tank level display area, a right wing fuel tank level display area, a total fuel tank level display area, a standby display area, and a preset fuel level display area. The left wing fuel tank level display area, the center wing fuel tank level display area, the right wing fuel tank level display area, and the total fuel tank level display area are used to indicate the current onboard fuel level information of the corresponding fuel tank when the fuel system is fault-free. The preset fuel level display area is used to indicate the current operating mode of the fuel system, the total fuel level information of the aircraft, or fault information. The standby display area is used to display the preset fuel level adjustment threshold when the preset fuel level is set in automatic refueling mode.

[0047] In practical implementation, the display module M4 is designed with a matrix display screen DIS100. Each display area in the DIS100 can be controlled independently to display different content, including numbers and characters. By selecting and combining different numbers of display areas, the ground oiling and dispensing functions of various models can be adapted.

[0048] Preferably, the display module M4 includes a sunlight-readable LED display screen that can switch between six different brightness levels. Setting the highest brightness allows ground operators to work normally even in sunlight.

[0049] Preferably, the display module M4 has six display areas, designated as the left wing fuel tank level display area, the center wing fuel tank level display area, the right wing fuel tank level display area, the total fuel tank level display area, the standby display area, and the preset fuel level display area. These are labeled "LEFT," "MID," "RIGHT," "TOTAL," "SPARE," and "PRESEL" on the panel, respectively. The "PRESEL" display area allows direct observation of the current operating mode of the fuel system. Ground operators can quickly switch between different modes by rotating the mode selection switch SW1. If the fuel system detects a fault or a refueling alarm, the display module M4 will prioritize displaying the fault or alarm information in the preset fuel level display area. If multiple faults occur simultaneously, the refueling / discharging control panel PB1 will prioritize displaying the most severe fault based on its severity. For example, if the measurement system connected to the fuel filling / draining control panel PB1 malfunctions, the fault should be indicated first, rather than the sensor or valve fault detected by the measurement system. When the fault levels are the same, such as when both sensor and valve faults occur simultaneously, the fault information will be displayed alternately at two-second intervals so that ground operators can prioritize addressing the more serious fault.

[0050] Furthermore, the M4 display module assigns different indicator labels to each operating mode: "MANUAL" for manual refueling, "DEFUEL" for dispensing, and "FUEL XFR" for ground transfer. The off mode displays the current total fuel level, while the automatic refueling mode displays the current preset fuel level. This labeling method is more distinctive than traditional Chinese labels, providing clearer visual feedback to ground personnel, especially given the relatively low resolution of the existing electronic display screen.

[0051] Furthermore, after the fuel filling / discharging control panel PB1 is powered on, it will automatically perform a power-on self-test. During this period, the display module M4 should display an alternating checkerboard pattern for two seconds: that is, each display area (LEFT, MID, RIGHT, TOTAL, SPARE, PRESEL) displays eight positive checkerboard symbols per second (e.g., ...). Figure 3 As shown, all characters in each display area are displayed, and then a reverse chessboard is displayed for one second at each character position, as shown. Figure 4 As shown, this indicates that the display screen is powered on and working properly. If no fault is reported at this point, ground operators can begin adding or removing fuel.

[0052] Preferably, current aircraft fuel measurement units include metric units (kg) and imperial units (lb). The fuel filling / discharging control panel PB1 in this embodiment can simultaneously accommodate both units of measurement, as shown below. Figure 5 and Figure 6 The system can switch to the corresponding fuel quantity unit display according to the requirements of different airlines, increasing the versatility of the fuel filling and discharging control panel PB1.

[0053] Preferably, the display module M4 provides a preset fuel level adjustment threshold to the ground operator. This prompt only appears when the panel is in automatic refueling mode and the preset fuel level adjustment switch SW2 is toggled to the upper or lower position. Figure 9 When the operator moves the preset fuel level adjustment switch SW2 to the upper position, the panel will display the maximum preset fuel level (the maximum value of the preset fuel level adjustment threshold) in the SPARE display area. If the switch is moved to the lower position, the panel will display the minimum preset fuel level (the minimum value of the preset fuel level adjustment threshold) in the SPARE display area. This information allows the operator to clearly understand the size of the aircraft's fuel tank and calculate the difference between the full fuel level and the preset fuel level during refueling, thus facilitating easier adjustment of the preset fuel level. This information also indirectly reflects the health status of the sensors in the measurement system.

[0054] In one embodiment, during automatic refueling, the fuel level in each tank changes slowly, making it impossible for ground operators to visually determine whether the fuel system is in automatic refueling mode based solely on fuel level information. A clock character is provided in a preset fuel level display area, which is displayed when the fuel system is in the automatic refueling process.

[0055] Specifically, refer to Figure 10 A clock symbol has been added before the preset fuel level information on the PRESSEL display to indicate the automatic refueling status. This symbol rotates clockwise around the center of the display; it will appear if the fuel system is in automatic refueling mode, otherwise it will not. When automatic refueling is complete, "COMPLETE" will be displayed on the PRESSEL display to indicate that automatic refueling is complete. If the automatic refueling process is terminated, "STOPPED" will be displayed on the PRESSEL display. This design clearly distinguishes the automatic refueling status, allowing ground operators to promptly grasp the automatic refueling status and make appropriate judgments based on the actual refueling scenario.

[0056] In one embodiment, the display module M4 includes an LED display screen, and the display module includes an LED display screen, which is respectively corresponding to the fuel level display area of ​​the left wing fuel tank, the fuel level display area of ​​the central wing fuel tank, the fuel level display area of ​​the right wing fuel tank, the fuel level display area of ​​the total fuel tank, the spare display area, and the preset fuel level display area.

[0057] Compared to Figure 1The existing fuel filling / draining control panel shown uses a combination of a display screen and infrared indicator lights to indicate fault information. The display module M4 in this embodiment can display various possible faults, and if the fault is directly related to any fuel tank, it will be directly displayed on the corresponding fuel level display screen. This allows ground operators to accurately understand the fault status of the fuel system simply by focusing on the display screen, reducing operational complexity. It also facilitates precise fault location for ground operators, improving operational efficiency.

[0058] As an example, refer to Figure 17 When the fuel system issues a full fuel tank warning in the left wing, "FULL" will be displayed on the LEFT screen, while the fuel level display areas for the remaining four fuel tanks will continue to display the corresponding fuel level or the current operating mode.

[0059] As another example, see Figure 18 When the fuel system issues an overfill warning in the left wing fuel tank, “OVERFILL” will be displayed on the LEFT screen, while the remaining four fuel level display areas will continue to display the corresponding fuel tank level or the current operating mode.

[0060] As another example, see [reference] Figure 19 When the fuel system experiences an imbalance in the fuel tank levels in the wing tanks, with the left wing tank having a lower fuel level, "IMBAL" will be displayed on the LEFT screen. This information will alternate with the fuel level information in the left wing tank, while the remaining four fuel tank display areas will continue to display the corresponding fuel level or the current operating mode.

[0061] As another example, see [reference] Figure 20 When hardware or equipment in the fuel system malfunctions, it will be indicated in the display module M4, such as a high fuel level sensor malfunction, a measurement system malfunction, or a valve malfunction. The content of the displayed fault information can be configured. The fuel filling / draining control panel PB1 of this invention will select the most severe fault to display based on the set fault level, and lower-level faults will be overwritten. It will only be displayed when a higher-level fault is eliminated. If the fault levels are the same, they will be displayed alternately at two-second intervals. This display setting can inform the ground operators of the most critical faults, avoiding misleading the operators with relatively unimportant information, so as to formulate more effective troubleshooting measures and improve operational efficiency.

[0062] The following section explains the various operations of the PB1 fuel filling and discharging control panel, using specific examples.

[0063] When the aircraft is on the ground, open the refueling bay door, flip up the red protective cover of the power switch SW7, and move the power switch SW7 to the upper position. This will power on the fuel loading / discharge control panel PB1. The fuel loading / discharge control panel PB1 will automatically start a self-test. All displays in the display module M4 (LEFT, MID, RIGHT, TOTAL, SPARE, PRESEL) will first display a forward chessboard for one second, then a reverse chessboard for one second. See [link to relevant documentation]. Figure 3 and Figure 4 If the self-test passes, the actual fuel level information measured by the measurement system will be displayed in the fuel level display area of ​​each fuel tank. At this time, the ground operator can switch to the desired operating mode using the mode selection switch SW1 in the mode selection module M1. If the self-test fails, “--------” will be displayed in the left wing fuel level display area (LEFT), the center wing fuel level display area (MID), the right wing fuel level display area (RIGHT), the total fuel level display area (TOTAL), and the spare display area (SPARE). “RDCP FLT” will be displayed in the preset fuel level display area (PRESEL), indicating a malfunction in the fuel filling / discharging control panel PB1.

[0064] The following is combined Figure 2 This describes the process of ground operators adding or discharging fuel using the fuel control panel PB1. The operational steps for imperial and metric units are completely identical on the fuel control panel PB1 of this invention. This example uses the metric unit kg as the unit of fuel volume for illustration. See [link / reference]. Figure 5 and Figure 6 .

[0065] Pre-inspection of the fuel solenoid valve includes the following steps: a) Open the refueling compartment door and flip up the red protective cover of the power switch SW7; b) Turn the power switch SW7 to the upper position to power on the oil filling / draining control panel PB1; c) The oil filling and emptying control panel PB1 starts a self-test. After two seconds, the self-test passes and the oil level display area of ​​each oil tank in display module M4 displays the current oil level information on the machine. The preset oil level display area (PRESEL) displays "0kg". d) Rotate the mode selection switch SW1 of the mode selection module M1 clockwise to the automatic refueling mode (AUTO). The preset fuel level display area (PRESEL) in the display module M4 will display the remaining fuel level on the machine, which is consistent with the information displayed in the total fuel level display area (TOTAL). e) Move the automatic refueling operation switch SW3 in the automatic refueling control module M2 to the lower position and hold it for five seconds. The fuel system will initiate a pre-check of the refueling solenoid valve. The fuel level display areas for the left wing, center wing, and right wing fuel tanks in the display module M4 will display "SOV", "IN", and "PROGRESS" respectively. The total fuel level display area will continue to display the total fuel level of the aircraft. The preset fuel level display area will be blank. See below. Figure 7 ; f) After approximately two minutes, the refueling solenoid valve pre-check will be completed. If no abnormalities are found, the pre-check is successful. The pre-check results will be displayed in the corresponding wing fuel tank display area. See [link to relevant documentation]. Figure 8 ; This completes the pre-inspection of the refueling solenoid valve.

[0066] The automatic refueling operation includes the following steps: a) Open the refueling compartment door and flip up the red protective cover of the power switch SW7; b) Turn the power switch SW7 to the upper position to power on the oil filling / draining control panel PB1; c) The oil filling and emptying control panel PB1 starts a self-test. After two seconds, the self-test passes and the oil level display area of ​​each oil tank in display module M4 displays the current oil level information on the machine. The preset oil level display area (PRESEL) displays "0kg". d) Rotate the mode selection switch SW1 of the mode selection module M1 clockwise to the automatic refueling mode (AUTO). The preset fuel level display area (PRESEL) in the display module M4 will display the remaining fuel level on the machine, which is consistent with the information displayed in the total fuel level display area (TOTAL). e) Assuming a preset fuel quantity of 11000 kg, turn the preset fuel quantity adjustment switch SW2 of the automatic refueling control module M2 to the upper position and hold it for a certain period of time until the preset fuel quantity display area (PRESEL) in the display module M4 displays "11000 kg". This completes the preset fuel quantity setting. See [link / reference]. Figure 9 ; f) Switch the automatic refueling operation switch SW3 in the automatic refueling control module M2 to the upper position. The fuel system will then begin automatic refueling. During automatic refueling, the clock digits will continuously rotate clockwise to the left of the preset fuel level. See [link to relevant documentation]. Figure 10 ; g) During the automatic refueling process, the fuel level information in the left wing fuel tank level display area (LEFT), the center wing fuel tank level display area (MID), the right wing fuel tank level display area (RIGHT), and the total fuel tank level display area (TOTAL) in the display module M4 will be measured in real time by the measurement system directly connected to the refueling control panel PB1 and sent to the refueling control panel PB1. The value will slowly increase. g1) In case of an emergency, the operator can switch the automatic refueling operation switch SW3 in the automatic refueling control module M2 to the lower position. The fuel system will stop automatic refueling and display "STOPPED" in the preset fuel level display area (PRESEL). See [link to relevant documentation]. Figure 12 ; g2) Unless there are unforeseen circumstances, automatic refueling will stop once the total fuel level in the tank reaches the preset level, and "COMPLETE" will be displayed in the preset fuel level display area (PRESEL). See [link / reference]. Figure 11 ; This completes the automatic refueling operation.

[0067] Manual refueling involves the following steps: a) Open the refueling compartment door and flip up the red protective cover of the power switch SW7; b) Turn the power switch SW7 to the upper position to power on the oil filling / draining control panel PB1; c) The oil filling and emptying control panel PB1 starts a self-test. After two seconds, the self-test passes and the oil level display area of ​​each oil tank in display module M4 displays the current oil level information on the machine. The preset oil level display area (PRESEL) displays "0kg". d) Rotate the mode selection switch SW1 of the mode selection module M1 clockwise to the manual refueling mode (MAN); d1) If any of the wing fuel tank refueling solenoid valve switches is not in the closed position at this time, "CLOSE", "ALL", "VALVES", and "INHIBIT" will be displayed in the left wing fuel tank, center wing fuel tank, right wing fuel tank, and preset fuel level display area, respectively, indicating "All valves closed - suppression". The total fuel tank level display area will continue to display the aircraft's fuel level. See [link to relevant documentation]. Figure 13 ; d2) If all wing fuel tank refueling solenoid valves are in the closed position, "MANUAL" will be displayed in the preset fuel level display area (PRESEL) of display module M4, while other display areas will display the current fuel level information. See [link to relevant documentation]. Figure 14 ; e) Operate the three fuel tank refueling solenoid valve switches in the manual fuel control module M3 to control the refueling valve of the corresponding fuel tank. When the refueling solenoid valve switch is in the upper position, the refueling solenoid valve will be opened; when the switch is in the lower position, the refueling solenoid valve will be closed. When the fuel level in each fuel tank display area in the display module M4 reaches the desired fuel level, the refueling solenoid valve is closed to complete the refueling of the wing fuel tank. This completes the manual refueling process.

[0068] Manually draining the oil involves the following steps: a) Open the refueling compartment door and flip up the red protective cover of the power switch SW7; b) Turn the power switch SW7 to the upper position to power on the oil filling / draining control panel PB1; c) The oil filling and emptying control panel PB1 starts a self-test. After two seconds, the self-test passes and the oil level display area of ​​each oil tank in display module M4 displays the current oil level information on the machine. The preset oil level display area (PRESEL) displays "0kg". d) Rotate the mode selection switch SW1 of the mode selection module M1 clockwise to the oil drain mode (DEFUEL). d1) If any of the wing fuel tank refueling solenoid valves is not in the closed position at this time, "CLOSE", "ALL", "VALVES", and "INHIBIT" will be displayed in the left wing fuel tank, center wing fuel tank, right wing fuel tank, and preset fuel level display areas, respectively. The total fuel tank level display area will continue to display the aircraft's fuel level. See [link to relevant documentation]. Figure 13 ; d2) If all wing fuel tank refueling solenoid valves are in the closed position, "DEFUEL" will be displayed in the preset fuel level display area (PRESEL) of display module M4, while other display areas will display the current fuel level information. See [link to relevant documentation]. Figure 15 ; e) Operate the three fuel tank refueling solenoid valve switches in the manual fuel control module M3 to control the refueling valve of the corresponding fuel tank. When the refueling solenoid valve switch is turned to the upper position, the refueling solenoid valve will be opened; when the switch is turned to the lower position, the refueling solenoid valve will be closed. When the fuel level in the fuel level display area of ​​each fuel tank in the display module M4 reaches the desired fuel level, the refueling solenoid valve is closed to complete the draining of fuel from the wing fuel tank; This completes the oil draining process.

[0069] Ground-based transfer specifically includes the following steps: a) Open the refueling compartment door and flip up the red protective cover of the power switch SW7; b) Turn the power switch SW7 to the upper position to power on the oil filling / draining control panel PB1; c) The oil filling and emptying control panel PB1 starts a self-test. After two seconds, the self-test passes and the oil level display area of ​​each oil tank in display module M4 displays the current oil level information on the machine. The preset oil level display area (PRESEL) displays "0kg". d) Rotate the mode selection switch SW1 of the mode selection module M1 clockwise to the ground transfer mode (XFR); d1) If any of the wing fuel tank refueling solenoid valves is not in the closed position at this time, "CLOSE", "ALL", "VALVES", and "INHIBIT" will be displayed in the left wing fuel tank, center wing fuel tank, right wing fuel tank, and preset fuel level display areas, respectively. The total fuel tank level display area will continue to display the aircraft's fuel level. See [link to relevant documentation]. Figure 13 ; d2) If all wing fuel tank refueling solenoid valves are in the closed position, "FUEL XFR" will be displayed in the preset fuel level display area (PRESEL) of display module M4, while other display areas will display the current fuel level information. See [link to relevant documentation]. Figure 16 ; e) Operate the three fuel tank refueling solenoid valve switches in the manual fuel control module M3 to control the refueling valve of the corresponding fuel tank. When the refueling solenoid valve switch is in the upper position, the refueling solenoid valve will be opened; when the switch is in the lower position, the refueling solenoid valve will be closed. When the fuel level in each fuel tank display area in the display module M4 reaches the desired fuel level, the refueling solenoid valve is closed, completing the ground transfer to the wing fuel tank; This completes the ground transfer operation.

[0070] Fault or alarm display, specifically including the following: During refueling, a refueling alarm may occur if the refueling valve is not closed in time, including: I. Full fuel warning When the measurement system detects that the fuel volume of a wing fuel tank is nearing full, the corresponding wing fuel tank's fuel level display area in the PB1 display module M4 of the fuel dispensing control panel will show "FULL" to indicate to ground operators that the tank is full and refueling should be stopped. See [link / reference] Figure 17 .

[0071] II. Oil Spill Warning When the measurement system detects that the fuel volume in a wing fuel tank has exceeded the maximum refueling limit, the corresponding wing fuel tank display area in the PB1 display module M4 of the fuel refueling control panel will show "OVERFILL" to prompt ground operators to stop refueling and handle the situation as soon as possible. See [link / reference] Figure 18 .

[0072] III. Wing fuel tank imbalance When the measurement system detects a significant difference in fuel volume between the two wing tanks exceeding the limit threshold, the display area of ​​the wing tank with the lower fuel level in the PB1 display module M4 of the fuel loading / discharging control panel will show "IMBAL" to prompt ground operators to promptly adjust the fuel levels in both wing tanks to maintain balance. (See also...) Figure 19 Meanwhile, the "IMBAL" information will be displayed alternately with the fuel level in the tank at two-second intervals to inform ground operators of the real-time fuel level.

[0073] IV. High oil level sensor malfunction When the measurement system detects a malfunction in the high fuel level sensor of a wing fuel tank, preventing real-time monitoring of the tank's high fuel level, the corresponding wing fuel tank display area on the PB1 display module M4 of the fuel loading / discharging control panel will display "HIGHFAIL" to prompt ground operators to perform repairs as soon as possible. (See also...) Figure 20 .

[0074] V. Measurement sensor malfunction When the measurement system detects a malfunction in the measuring sensor and its inability to monitor the fuel level in the tank in real time, the preset fuel level display area (PRESEL) on the PB1 display module M4 of the fuel filling / draining control panel will display "GAUG FLT" to prompt ground operators to perform repairs as soon as possible. See [link / reference] Figure 21 .

[0075] VI. Valve malfunction When the measurement system detects a normally driven valve or an undetectable valve opening / closing state, the preset oil level display area (PRESEL) in the PB1 display module M4 of the oil filling / draining control panel will display "VLV FLT" to prompt ground operators to perform maintenance as soon as possible. See [link / reference] Figure 22 .

[0076] VII. Measurement system failure When the measurement system detects a problem (communication interruption, software malfunction, etc.), the preset fuel level display area (PRESEL) in the PB1 display module M4 of the fuel filling / dumping control panel will display "FGMC FLT" to prompt ground operators to perform maintenance as soon as possible. See [link / reference] Figure 23 This fault is of a higher severity than the faults described above. Therefore, when this fault occurs, it will be displayed first in the display module M4 of the oil filling / draining control panel PB1.

[0077] VIII. Fuel filling / discharging control panel PB1 malfunction When the fuel filling / discharging control panel PB1 detects a problem (communication interruption, software malfunction, etc.), the preset fuel level display area (PRESEL) in the PB1 display module M4 will display "RDCP FLT" to prompt ground operators to perform repairs as soon as possible. (See also...) Figure 24 The fault level of this fault is consistent with the fault level of the measurement system. Therefore, when this fault occurs, it will be displayed first in the display module M4 of the oil filling and draining control panel PB1.

[0078] The embodiments provided by this invention incorporate multiple redundant designs for ground refueling operations, making these operations safer and more reliable. Simultaneously, abundant fault and alarm indications provide ground operators with numerous concise and crucial instructions, aiding in troubleshooting. The integrated functional and interface control design significantly improves the convenience of ground operators performing ground refueling operations, providing a clear and concise operating interface, streamlining the workflow, and enhancing the human-machine interaction experience.

[0079] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An integrated control panel for aircraft refueling and dumping, characterized in that, It includes a mode selection module, an automatic refueling control module, a manual fuel control module, a display module, a power on / off switch, and a power switching switch. The mode selection module is used to switch between multiple operating modes, including shutdown mode, automatic refueling mode, manual refueling mode, oil discharge mode, and ground transfer mode. The automatic refueling control module is used to adjust the preset oil quantity in automatic refueling mode, control the start and stop of the automatic refueling process, and perform a pre-check of the refueling solenoid valve before each automatic refueling. The fuel manual control module is used to manually control the opening and closing of the fuel tank solenoid valve for manual refueling, draining and transferring operations; The display module is communicatively connected to the mode selection module, the automatic refueling control module, and the manual fuel control module, and is used to display the status and fault information of each module. The power switch is used to control the power supply to and from the oil filling / discharging control panel; The power switching switch is used to control the fuel filling and discharging control panel to select between battery power or onboard busbar power.

2. The integrated control panel for aircraft refueling and dumping according to claim 1, characterized in that, The display module includes a fuel level display area for the left wing, a fuel level display area for the center wing, a fuel level display area for the right wing, a total fuel level display area, a standby display area, and a preset fuel level display area. The fuel level display areas for the left wing, center wing, right wing, and total fuel levels are used to indicate the fuel level information of the corresponding fuel tanks on the aircraft when there is no fault in the fuel system. The preset fuel level display area is used to indicate the current operating mode of the fuel system, the total fuel level information of the aircraft's fuel tanks, or fault information. The standby display area is used to display the preset fuel level adjustment threshold when the preset fuel level is set in automatic refueling mode.

3. The integrated control panel for aircraft refueling and dumping according to claim 2, characterized in that, The preset fuel level display area has a clock character, which is displayed when the fuel system is in the automatic refueling process.

4. The integrated control panel for aircraft refueling and dumping according to claim 2, characterized in that, The automatic refueling control module includes a preset fuel quantity adjustment switch and an automatic refueling operation switch. Both the preset fuel quantity adjustment switch and the automatic refueling operation switch are set as three-position transient switches. When the automatic refueling operation switch is turned to the upper position and the preset fuel quantity has been correctly set, the fuel system starts to refuel automatically. The automatic refueling status is displayed in the preset fuel quantity display area. When the automatic refueling operation switch is turned to the lower position, the fuel system stops to refuel automatically.

5. The integrated control panel for aircraft refueling and dumping according to claim 4, characterized in that, The automatic refueling operation switch is also used for pre-checking the refueling solenoid valve before each automatic refueling. When the automatic refueling operation switch is turned to the lower position and held for a preset time, the refueling solenoid valve pre-check is started. The pre-check results of the refueling solenoid valves of the left wing, center wing, and right wing are displayed in the fuel level display areas of the left wing, center wing, and right wing, respectively. The pre-check results of the refueling solenoid valves and the fuel level information are displayed alternately.

6. The integrated control panel for aircraft refueling and dumping according to claim 4, characterized in that, The preset fuel quantity adjustment switch is used to adjust the preset fuel quantity in automatic refueling mode. When the preset fuel quantity adjustment switch is turned to the upper position, the preset fuel quantity increases, and the maximum value of the preset fuel quantity adjustment threshold is displayed in the standby display area. When the preset fuel level adjustment switch is turned to the lower position, the preset fuel level decreases, and the minimum value of the preset fuel level adjustment threshold is displayed in the standby display area.

7. The integrated control panel for aircraft refueling and dumping according to claim 2, characterized in that, The manual fuel control module includes three manual refueling toggle switches, which control the fuel tank refueling valves of the left wing, center wing, and right wing, respectively.

8. The integrated control panel for aircraft refueling and dumping according to claim 7, characterized in that, All three manual refueling toggle switches are set to two-position switches. When the manual refueling toggle switch is moved to the upper position, the fuel tank refueling valve opens. When the manual refueling toggle switch is moved to the lower position, the fuel tank refueling valve closes. When the aircraft refueling control panel is powered on for the first time, in manual refueling mode, in refueling mode, or in ground transfer mode, if any one of the manual refueling toggle switches is not in the lower position, refueling inhibition information will be displayed in the display module.

9. The integrated control panel for aircraft refueling and dumping according to claim 1, characterized in that, The mode selection module is set as a rotary switch that rotates clockwise or counterclockwise around the rotation axis. The rotary switch has multiple operating mode indicators along its outer periphery and an indicator axis along its radius. When the rotary switch is rotated, the operating mode indicator pointed to by the indicator axis is the current operating mode.

10. The integrated control panel for aircraft refueling and dumping according to claim 2, characterized in that, The display module includes an LED display screen, which displays the fuel level of the left wing fuel tank, the central wing fuel tank, the right wing fuel tank, the total fuel tank, the spare fuel level, and the preset fuel level.

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