A dual lever man-machine ergonomics evaluation structure based on a task scenario

Abstract

This application belongs to the field of cockpit layout, and specifically relates to a dual-stick ergonomic evaluation structure based on mission scenarios, including a cockpit, a bottom platform, a control console, a stick head, and a display screen. Both the cockpit and control console are located on the bottom platform, with the stick head connected to the control console, and the display screen located on the outside of the bottom platform. The display screen is electrically connected to the control console. The control console houses a flight control simulation system and an information processing system. The flight control simulation system outputs the pilot's flight control information to the information processing system, which processes the flight control information, generates corresponding flight data, and transmits it to the display screen. This allows for dual-stick switching ergonomic testing before the development of the control stick and throttle lever products, enabling timely problem identification and design iteration. It offers significant advantages in terms of agility, versatility, and low-cost evaluation, providing support for dual-stick design iteration and evaluation verification throughout the aircraft's entire lifecycle.

Description

Technical Field

[0001] This application belongs to the field of cockpit layout, and specifically relates to a dual-bar human-machine ergonomics evaluation structure based on mission scenarios. Background Technology

[0002] Modern aircraft emphasize the integration of ergonomic design into the cockpit layout, making full use of the two sticks for mission operation as much as possible. This reduces the number of times the pilot has to switch between the two sticks, control devices, and touch screens, allowing the pilot to operate the aircraft as quickly and accurately as possible during missions and significantly reducing the pilot's workload. Therefore, the ergonomic design of the control stick and throttle lever has become an important indicator of the advancement of aircraft design and a key to improving aircraft efficiency.

[0003] In the design and evaluation of dual-stick systems, iterative and verification of the dual-stick switch layout design is generally conducted through static tests of the control stick's shape. Ergonomic research on dual-stick switch layouts is limited; research focuses primarily on control components such as pedals, toggle switches, buttons, and joysticks, as well as the comfort of the operating range and control posture. Evaluation methods are based on wooden models of the stick heads or 3D-printed simulators, with subjective evaluations conducted by subjects such as aircraft pilots. In subsequent development phases, improvements and optimizations are gradually made in conjunction with flight tests or simulator experiments. This approach involves relatively late optimization and evaluation, with insufficient early-stage iterative verification, relying mainly on flight tests during the experimental phase for evaluation and verification. The iteration cycle is long, and modifications are difficult.

[0004] It is of great significance to introduce dual-bar evaluation tests for design iteration in the early stages of design, and to optimize efficiencies at each stage in combination with mission scenarios, while supporting the process-oriented and agile design of aircraft development. Summary of the Invention

[0005] To address the aforementioned issues, this application provides a task-scenario-based dual-bar ergonomics evaluation structure to resolve the problems of long iteration cycles and high difficulty in modifying existing dual-bar designs and evaluation architectures.

[0006] The technical solution of this application is: a dual-stick human-machine ergonomics evaluation structure based on a task scenario, including a cockpit, a bottom platform, a control panel, a stick head, and a display screen;

[0007] The cockpit and control panel are both located on the bottom platform, the stick head is connected to the control panel, and the display screen is located on the outside of the bottom platform; the display screen is electrically connected to the control panel.

[0008] The control console is equipped with a flight control simulation system and an information processing system. The flight control simulation system can output the pilot's flight control information to the information processing system. The information processing system processes the flight control information, generates corresponding flight data, and transmits it to the display screen.

[0009] Preferably, the flight control simulation system includes a high-precision micro servo mechanism, a universal joint, and an anti-torsion structure; the high-precision micro servo mechanism is connected to the stick head via the universal joint, and the stick head can drive the high-precision micro servo mechanism to perform elevation and pitch adjustments; the anti-torsion structure is used to prevent torsional displacement caused by the adjustment clearance of the control panel; the control panel is equipped with a first displacement sensor to collect its position information.

[0010] Preferably, the lever head is connected to the housing of the control panel by a quick-release latch, the bottom of the control panel is equipped with a horizontal slide rail, the top of the control panel is provided with a panel, and the lever head is located on the panel.

[0011] Preferably, the information processing system includes a data receiving unit, a data processing unit, and a data display unit. The data receiving unit is capable of receiving position data collected by the first displacement sensor and the second displacement sensor and sending it to the data processing unit. The data processing unit is capable of converting the collected data into flight command information and displaying it on the display screen.

[0012] Preferably, the high-precision micro servo mechanism is equipped with a second displacement sensor. The second displacement sensor collects the rise and fall and pitch data of the high-precision micro servo mechanism and sends them to the display screen. The data processing unit includes a work matching module and a display module. The work matching module generates flight mission data based on the position data collected by the first and second displacement sensors. The data display unit generates mission display data based on the flight mission data and sends it to the display screen for display.

[0013] Preferably, the stick head is formed by powder metal 3D printing and includes a neutral integrated stick and an active side stick; the display module is equipped with a variety of display models. Different display models are selected according to different flight mission data, and the corresponding flight mission data is processed to obtain the mission scene interface on the display screen.

[0014] The task-scenario-based dual-bar human-machine ergonomics evaluation structure of this application has the following advantages:

[0015] Compared to existing dual-stick design, development, and evaluation testing, this method allows for ergonomic testing of dual-stick switches before the development of control sticks and throttle levers, enabling timely problem identification and design iteration, reducing the difficulty and cycle time of later modifications. Furthermore, this evaluation scheme is compatible with the entire aircraft lifecycle. In the conceptual design phase, rapid ergonomic evaluation and verification of the dual-stick layout are conducted. In the preliminary design phase, static ergonomic evaluation and design iteration of the dual-sticks are completed. In the detailed design phase, further ergonomic design evaluation of the dual-sticks is conducted based on typical mission scenarios. It offers significant advantages in agility, versatility, and low-cost evaluation, providing support for dual-stick design iteration and evaluation verification throughout the entire aircraft lifecycle. Attached Figure Description

[0016] Figure 1 This is a diagram of the quick-replacement structure of the dual levers on the control panel of this application.

[0017] 1. Rod head; 2. Control panel; 3. High-precision micro servo mechanism; 4. Horizontal slide rail; 5. Quick release lock. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are only some, not all, of the embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application. The embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0019] The first aspect of this application provides a dual-bar ergonomics evaluation structure based on a task scenario. It uses a modular flexible cockpit as the main body of the test environment. The cockpit structure, instrument panel structure, and control panel structure have the functions of defining and adjusting spatial layout, geometric dimensions, installation form, human-machine interface, and control form. The dual-bar installation position has the function of switching between the central bar and the side bar.

[0020] like Figure 1 As shown, it includes a cockpit, a bottom platform, a control panel 2, a stick 1, and a display screen;

[0021] Both the cockpit and control panel 2 are located on the bottom platform. The stick head 1 is connected to the control panel 2, and the display screen is located on the outside of the bottom platform. The display screen is electrically connected to the control panel 2.

[0022] The control console 2 is equipped with a flight control simulation system and an information processing system. The flight control simulation system can output the pilot's flight control information to the information processing system. The information processing system processes the flight control information, generates corresponding flight data, and transmits it to the display screen.

[0023] The rear of the cockpit features an open structure for easy access. The bottom platform is modular, allowing for quick replacement of the prototype cockpit shell with a shell suitable for everyday use.

[0024] The display screen's visuals are based on typical mission scenarios, generally including takeoff and landing, but can also be expanded to include other mission flows. Display control functions are developed according to the specific operational procedures and interconnected with a dual-pole switch.

[0025] By integrating the cockpit, bottom platform, control panel 2, stick head 1, and display screen into a unified structural design, a complete dual-stick human-machine ergonomics evaluation test environment is built. The components work together to achieve a closed-loop operation of "control-data processing-screen feedback", restoring the real dual-stick control logic and visual experience of the aircraft cockpit, and providing basic hardware and system support for ergonomics evaluation based on mission scenarios.

[0026] Preferably, the flight control simulation system includes a high-precision micro servo mechanism 3, a universal joint structure, and an anti-torsion structure; the high-precision micro servo mechanism 3 is connected to the stick head 1 through the universal joint structure, and the stick head 1 can drive the high-precision micro servo mechanism 3 to perform elevation and pitch adjustments; the anti-torsion structure is used to prevent torsional displacement caused by adjusting the clearance of the control panel 2; the control panel 2 is equipped with a first displacement sensor to collect its position information.

[0027] The high-precision micro servo mechanism 3, the universal structure and the linkage design of the stick 1 accurately simulate the actual rise, fall and pitch control actions of the aircraft's two sticks, restore the real control feel and movement trajectory, and make the tester's control experience highly close to actual flight, ensuring that the judgment of control flexibility and comfort in the ergonomic evaluation is more accurate.

[0028] Horizontal slide rails 4 are installed at the bottom of the two control panels 2. The throttle lever and control stick can be moved up and down and left and right on the control panel 2. Different 3D printed throttle levers and control sticks can be quickly replaced in place, and they are fixed together by quick-release latches 5.

[0029] Preferably, the lever head 1 is connected to the housing of the control panel 2 by a quick-release lock 5, the bottom of the control panel 2 is equipped with a horizontal slide rail 4, the top of the control panel 2 is provided with a panel, and the lever head 1 is located on the panel.

[0030] The quick-release latch 5 between the rod head 1 and the control panel 2 housing enables the in-situ quick replacement of the rod head 1 with different design schemes, without the need for a complicated disassembly process. This significantly shortens the evaluation and switching time of multiple dual-rod design schemes, improves the test efficiency of ergonomic evaluation, and facilitates the comparative evaluation of multiple schemes.

[0031] Preferably, the information processing system includes a data receiving unit, a data processing unit, and a data display unit. The data receiving unit can receive position data collected by the first displacement sensor and the second displacement sensor and send it to the data processing unit. The data processing unit can convert the collected data into flight command information and display it on the display screen.

[0032] The information processing system is designed with a modular structure of "data reception - data processing - data display" to achieve standardized and streamlined processing of data collected by displacement sensors, avoid command errors caused by chaotic data processing, and ensure the accuracy and timeliness of converting flight control information into flight command information.

[0033] Preferably, the high-precision micro servo mechanism 3 is equipped with a second displacement sensor. The second displacement sensor collects the rise and fall and pitch data of the high-precision micro servo mechanism 3 and sends them to the display screen. The data processing unit includes a work matching module and a display module. The work matching module generates flight mission data based on the position data collected by the first displacement sensor and the second displacement sensor. The data display unit generates mission display data based on the flight mission data and sends it to the display screen for display.

[0034] The installation of a second displacement sensor within the high-precision micro servo mechanism 3 enables precise data acquisition of the pitch and roll control actions of the stick head 1. This complements the position data of the control panel 2 from the first displacement sensor, constructing a full-dimensional displacement data acquisition system encompassing the entire control panel 2 and the local stick head 1. This provides more accurate and comprehensive raw data for generating flight mission data.

[0035] Preferably, the stick head 1 is formed by powder metal 3D printing, including a neutral integrated stick and an active side stick. The test environment is equipped with all dual-stick components and cables on the handle. The display module has multiple display models. According to different flight mission data, different display models are selected to process the corresponding flight mission data and obtain the mission scene interface on the display screen.

[0036] The stick head 1 is made of powder metal 3D printing, which balances the simulation of the stick head 1 with the production cost. It can quickly produce highly realistic dual stick heads 1, restore the touch and shape of the stick head 1 in actual flight, and improve the realism of the tester's operation experience. At the same time, 3D printing technology can facilitate the rapid production of stick heads 1 of various specifications to adapt to different evaluation needs.

[0037] After the pilots complete the assigned tasks, evaluation results are recorded using assessment scales and subjective verbal records. Each participant completes a scale to score the evaluation items after the simulated operation experience. Based on their individual experience, they fill out the corresponding form, selecting appropriate options in the evaluation comments section and offering suggestions in the suggestion section. The evaluation results are analyzed and processed to arrive at the final evaluation conclusion.

[0038] In summary, this application has the following advantages:

[0039] Compared to existing dual-stick design, development, and evaluation testing, this method allows for ergonomic testing of dual-stick switches before the development of control sticks and throttle levers, enabling timely problem identification and design iteration, reducing the difficulty and cycle time of later modifications. Furthermore, this evaluation scheme is compatible with the entire aircraft lifecycle. In the conceptual design phase, rapid ergonomic evaluation and verification of the dual-stick layout are conducted. In the preliminary design phase, static ergonomic evaluation and design iteration of the dual-sticks are completed. In the detailed design phase, further ergonomic design evaluation of the dual-sticks is conducted based on typical mission scenarios. It offers significant advantages in agility, versatility, and low-cost evaluation, providing support for dual-stick design iteration and evaluation verification throughout the entire aircraft lifecycle.

[0040] 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. A dual-bar ergonomics evaluation structure based on task scenarios, characterized in that, Includes a cockpit, a bottom platform, a control panel (2), a stick (1), and a display screen; The cockpit and control panel (2) are both located on the bottom platform. The stick (1) is connected to the control panel (2). The display screen is located on the outside of the bottom platform. The display screen is electrically connected to the control panel (2). The control console (2) is equipped with a flight control simulation system and an information processing system. The flight control simulation system can output the pilot's flight control information to the information processing system. The information processing system processes the flight control information, generates corresponding flight data, and transmits it to the display screen.

2. The dual-bar human-machine ergonomics evaluation structure based on task scenarios as described in claim 1, characterized in that, The flight control simulation system includes a high-precision micro servo mechanism (3), a universal joint structure, and an anti-torsion structure; the high-precision micro servo mechanism (3) is connected to the stick head (1) through the universal joint structure, and the stick head (1) can drive the high-precision micro servo mechanism (3) to perform elevation and pitch adjustments; the anti-torsion structure is used to prevent torsional displacement caused by adjusting the clearance of the control panel (2); the control panel (2) is equipped with a first displacement sensor to collect its position information.

3. The task-scenario-based dual-bar ergonomics evaluation structure as described in claim 2, characterized in that, The rod head (1) is connected to the outer shell of the control panel (2) by a quick-release latch (5). The bottom of the control panel (2) is equipped with a horizontal slide rail (4). The top of the control panel (2) is provided with a panel, and the rod head (1) is located on the panel.

4. The task-scenario-based dual-bar ergonomics evaluation structure as described in claim 3, characterized in that, The information processing system includes a data receiving unit, a data processing unit, and a data display unit. The data receiving unit can receive position data collected by the first displacement sensor and the second displacement sensor and send it to the data processing unit. The data processing unit can convert the collected data into flight command information and display it on the display screen.

5. The dual-bar human-machine ergonomics evaluation structure based on task scenarios as described in claim 4, characterized in that, The high-precision micro servo mechanism (3) is equipped with a second displacement sensor. The second displacement sensor collects the rise and fall and pitch data of the high-precision micro servo mechanism (3) and sends them to the display screen. The data processing unit includes a work matching module and a display module. The work matching module generates flight mission data based on the position data collected by the first displacement sensor and the second displacement sensor. The data display unit generates mission display data based on the flight mission data and sends it to the display screen for display.

6. The task-scenario-based dual-bar ergonomics evaluation structure as described in claim 5, characterized in that, The stick head (1) is formed by powder metal 3D printing and includes a neutral integrated stick and an active side stick; the display module is equipped with a variety of display models. Different display models are selected according to different flight mission data, and the corresponding flight mission data is processed to obtain the mission scene interface on the display screen.

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