Illusion simulation guiding method based on autonomous manipulation flight

Abstract

The invention discloses an illusion simulation guiding method based on autonomous manipulation flight, and the method comprises the steps: 1, designing a simulated flight path and a specific flight action in advance according to the illusion simulation demands, and generating target aircraft flight parameters meeting the requirements; in the step 3 to the step 6, a target machine guiding mode is adopted, a trained pilot operates an aircraft to carry out short-distance high-accuracy flight tracking, and the trained pilot is induced to enter an illusion scene and a flight illusion state through autonomous flight; in the step 7 to the step 8, the flight illusion induction condition is judged and prompted through the pilot feedback state correctness or maneuvering flight action execution reasonable condition at the key point; according to the method, a trained pilot can complete illusion simulation target flight actions and flight tracks under the condition of autonomous manipulation, the consistency of flight simulation scenes is improved, the attention of the trained pilot can be adjusted to be in a highly concentrated state, and the flight illusion induction rate and the training effect are further improved.

Description

Technical Field

[0001] The invention relates to the technical field of flight training, and in particular to an illusion simulation guidance method based on autonomous flight control. Background Art

[0002] Flight illusion refers to the pilot's incorrect perception of his or her own and the aircraft's status, position, direction, movement, and flight environment during flight. It is an important personnel factor that leads to flight accidents. It is particularly prone to occur during high-performance fighter maneuvering, night flight, and sea flight. Targeted training for flight illusions is an effective way to improve illusion cognition and reduce flight accidents. It includes two major directions: real aircraft flight experience training and ground simulation training. Both require process scenario design based on different illusion characteristics, allowing pilots to experience the illusions induced in the flight process.

[0003] Flight illusion simulation training is characterized by high efficiency, high safety and low cost. It is the current development trend of illusion simulation training. Illusion simulation training provides pilots with more illusion experience training opportunities, thereby improving illusion awareness and alertness.

[0004] At present, the simulation of flight illusion mainly adopts the method of limiting the integrity of spatial orientation information, and conducting it through passive experience or command flight. The passive experience method refers to letting the trainee pilots not perform flight control of the aircraft during the training process, and passively experience the motion and visual stimulation of the flight process to induce flight illusion; the command flight method refers to the trainee pilots actively operating the aircraft by executing flight control instructions to induce flight illusion, and the specific flight control process is usually carried out according to voice or visual instructions.

[0005] Disadvantages of existing technology: 1. The illusion training using passive experience is not immersive enough, which affects the pilots' enthusiasm for participating in simulation training and their recognition of training results to a certain extent. The reason is that the trainees do not participate in flight control, but can only feel the external flight environment stimulation as a "passenger", and cannot fully associate the flight action with the feeling; 2. Pilots are informed of the flight actions they need to perform by listening to instructions. The execution of flight actions varies greatly, resulting in inaccurate induced scenarios and large differences in simulation effects. The reasons are: since instructions cannot be accurately quantified, and each trainee pilot has differences in understanding, reaction time, and execution of instructions, the training conditions are very discrete, and the consistency of training results is low. 3. Too many or overly detailed flight target instructions will inevitably provide trainees with directional information, which will affect the trainees' flight control and reduce the induction rate of illusions, affecting the training effect. The reason is that the instructions themselves inevitably contain target flight information or flight action prompt information, which will affect the trainees' spatial orientation judgment.

[0006] Therefore, it is necessary to develop an illusion simulation guidance method based on autonomous flight control to solve the above problems. Summary of the invention

[0007] The purpose of the present invention is to design an illusion simulation guidance method based on autonomous flight control in order to solve the above problems.

[0008] The present invention achieves the above-mentioned purpose through the following technical solutions: An illusion simulation guidance method based on autonomous flight control, comprising: Step 1: Design simulated flight trajectory and flight action according to the simulated target illusion scene; Step 2: Simulate the aircraft to generate the target flight trajectory action parameters: Step 3: Before the training begins, the trainee pilots are informed to fly the aircraft closely following the target aircraft through visual flight; the target aircraft refers to the lead aircraft in the formation or the locked target aircraft; Step 4: Configure the simulated visual environment; configure the simulated visual environment conditions to meet the conditions for the trained pilot to visually see the target aircraft and have spatial orientation information; Step 5: After the simulator is fully ready, configure the same take-off location and initial speed, unfreeze and start flying, and the trainee pilot follows the target aircraft in close-range tracking mode. After the flight begins, the target aircraft's flight trajectory is recorded in step 2, and the trainee pilot controls his own aircraft in real time to track it. Step 6: Obtain data from the target and the trainee pilot’s aircraft in real time to analyze and evaluate the tracking status and give prompts to guide the trainee pilot to perform flight control to adjust the tracking status and ensure tracking consistency: 1) During the flight, obtain the error between the trajectory of the aircraft operated by the trainee pilot and the flight parameter trajectory, speed, attitude, and flying time of the target aircraft, and evaluate the tracking situation in real time. The evaluation calculation method includes the weighting of the absolute value of the error and fuzzy classification; 2) When the position error or attitude error exceeds the threshold, the training pilot will be fed back the tracking status through the screen and audio prompts to guide the training pilot to adjust the tracking range to a relatively reasonable range; Step 7: Analyze the illusion during flight, including the following methods: 1) Method 1: At key points, ask the trainee pilot about the current flight status of the aircraft, including flight speed, position, and attitude. The trainee pilot’s answer accuracy is used to determine whether he or she has a flight illusion. 2) Method 2: Instruct the trainee pilot to abandon the target at a critical point and immediately change to a specific flight state mode, which includes level flight. By checking the rationality of the trainee pilot's flight control, it is determined whether he has a flight illusion; Among them, the key point refers to the maneuvering flight that is likely to cause flight illusion, which includes long-term circling, rapid changes in slope and attitude angle; Step 8: After confirming that the pilot has an illusion, guide the pilot to gradually restore spatial orientation through flight instruments and visuals, and provide voice prompts to explain the illusion.

[0009] The beneficial effects of the present invention are: In step 1 to step 2, according to the illusion simulation requirements, the simulated flight trajectory and specific flight actions are designed in advance, and then the target aircraft flight parameters that meet the above requirements are generated; in step 3 to step 6, the target aircraft guidance method is adopted to allow the trainee pilot to operate the aircraft for close-range high-accuracy flight tracking, and induce the trainee pilot to enter the illusion scene and flight illusion state through autonomous flight; in step 7 to step 8, at key points, the pilot feedbacks the correctness of the state or the reasonableness of the execution of the maneuvering flight action to judge and prompt the flight illusion induction situation; this method allows the trainee pilot to complete the illusion simulation target flight action and flight trajectory with high fidelity under autonomous control, and improve the consistency of the flight simulation scene. Secondly, the trainee pilot always has a flight target that constantly changes its flight state during the training process, and gives a target trajectory prompt to avoid the target loss; this method will adjust the trainee pilot's attention to a highly concentrated state, further improving the flight illusion induction rate and training effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the process of the present invention. DETAILED DESCRIPTION

[0011] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0012] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0013] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0014] In the description of the present invention, it should be understood that the terms "upper", "lower", "inside", "outside", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the product of the invention is usually placed when in use, or are directions or positional relationships commonly understood by those skilled in the art. These directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0015] Furthermore, the terms “first”, “second”, etc. are merely used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0016] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms such as "setting" and "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0017] The specific implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings.

[0018] like Figure 1 As shown, an illusion simulation guidance method based on autonomous flight control comprises the steps of: Step 1: Design simulated flight trajectory (starting position, heading, etc.) and flight actions (such as level flight, circling, somersault, roll and compound actions) according to the simulated target illusion scene; Step 2: Generate the target flight trajectory action parameters through software or manual control of the simulated aircraft: 1) Record flight parameters during flight; 2) The recorded flight parameters shall at least include: time information, location information such as longitude, latitude, altitude, and attitude information such as yaw, pitch angle, and roll angle.

[0019] Step 3: Before the training begins, the trainee pilots are informed to fly the aircraft and closely follow the target aircraft / aircraft through visual flight. The target aircraft refers to the aircraft flying in formation (lead aircraft) or the locked target aircraft.

[0020] Step 4: Configure the simulated visual environment: The simulated visual environment should meet the conditions for the trained pilot to visually see the target aircraft, and should have less spatial orientation information, such as low visibility, unclear or even invisible horizon, etc. Step 5: After the simulator is fully ready, configure the same take-off location and initial speed in the simulator software, unfreeze and start flying at the same time, and the trainee pilot follows the target aircraft in a close-range tracking manner; 1) After the flight begins, the target aircraft's flight trajectory and attitude use the flight trajectory recorded in step 2, and the trained pilot controls his own aircraft to track in real time; 2) The target aircraft can be multiple aircraft flying in formation. The flight trajectories of the relevant aircraft groups can be translated into a formation based on the flight trajectories recorded in step 2; 3) The guidance system has a flight track display function in the visual field. For a period of time after the target aircraft flies past, the trained pilot can see the target's track prompt information through the visual field, thereby grasping the flight direction and attitude of the target aircraft and avoiding losing the target; 4) The above prompt information has a depth change function to express the distance and flying time information; it has a closable attitude expression function to express the attitude of the target aircraft when flying over.

[0021] Step 6: The guidance system includes a tracking evaluation system (data analysis hardware and software), which acquires data from the target and the trainee's aircraft in real time, analyzes and evaluates the tracking situation in real time, gives prompts, and guides the trainee to perform flight control to adjust the tracking status to ensure tracking consistency: 1) During the flight, the tracking and evaluation system obtains flight parameters such as the trajectory of the aircraft operated by the trainee pilot and the trajectory of the target aircraft, speed, attitude, and flying time error, and evaluates the tracking situation in real time. The evaluation calculation methods include absolute value weighting of error, fuzzy classification, etc. 2) When the position error or attitude error exceeds the threshold, the training pilot will be fed back the tracking status through the screen and audio prompts to guide the training pilot to adjust the tracking range to a relatively reasonable range; 3) The follow-up assessment includes multiple levels of thresholds, and the prompts are also different accordingly.

[0022] Step 7: Analyze the illusion during flight, including the following methods 1) Method 1: At key points, ask the trainee pilot about the current flight status of the aircraft, such as flight speed, position, and attitude, and judge whether the trainee pilot has a flight illusion by the accuracy of his answer; 2) Method 2: Instruct the trainee pilot to abandon the target at the critical point and immediately change to a specific flight state (such as changing to level flight, changing to a 10° right bank or other actions, etc.), and determine whether the trainee pilot has a flight illusion by checking the rationality of the flight control performed by the trainee pilot; Among them, the key point refers to after performing maneuvering flights that are likely to cause flight illusions, such as long-term circling, rapid changes in slope and attitude angle, and other maneuvers.

[0023] Step 8: After confirming that the pilot has an illusion, guide the pilot to gradually restore spatial orientation through flight instruments and visuals, and explain the illusion through voice prompts to enhance awareness. If the trainee pilot becomes uncomfortable due to an illusion, stop training; Note: If the instructor has sufficient flying skills, the target aircraft can also be flown by the instructor in real time.

[0024] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An illusion simulation guidance method based on autonomous flight control, characterized in that: include: Step 1: Design simulated flight trajectory and flight action according to the simulated target illusion scene; Step 2: Simulate the aircraft to generate the target flight trajectory action parameters: Step 3: Before the training begins, the trainee pilots are informed to fly the aircraft closely following the target aircraft through visual flight; the target aircraft refers to the lead aircraft in the formation or the locked target aircraft; Step 4: Configure the simulated visual environment; configure the simulated visual environment conditions to meet the conditions for the trained pilot to visually see the target aircraft and have spatial orientation information; Step 5: After the simulator is fully ready, configure the same take-off location and initial speed, unfreeze and start flying, and the trainee pilot follows the target aircraft in close-range tracking mode. After the flight begins, the target aircraft's flight trajectory is recorded in step 2, and the trainee pilot controls his own aircraft in real time to track it. Step 6: Obtain data from the target and the trainee pilot’s aircraft in real time to analyze and evaluate the tracking status and give prompts to guide the trainee pilot to perform flight control to adjust the tracking status and ensure tracking consistency: 1) During the flight, obtain the error between the trajectory of the aircraft operated by the trainee pilot and the flight parameter trajectory, speed, attitude, and flying time of the target aircraft, and evaluate the tracking situation in real time. The evaluation calculation method includes the weighting of the absolute value of the error and fuzzy classification; 2) When the position error or attitude error exceeds the threshold, the training pilot will be fed back the tracking status through the screen and audio prompts to guide the training pilot to adjust the tracking range to a relatively reasonable range; Step 7: Analyze the illusion during flight, including the following methods: 1) Method 1: At key points, ask the trainee pilot about the current flight status of the aircraft, including flight speed, position, and attitude. The trainee pilot’s answer accuracy is used to determine whether he or she has a flight illusion. 2) Method 2: Instruct the trainee pilot to abandon the target at a critical point and immediately change to a specific flight state mode, which includes level flight. By checking the rationality of the trainee pilot's flight control, it is determined whether he has a flight illusion; Among them, the key point refers to the maneuvering flight that is likely to cause flight illusion, which includes long-term circling, rapid changes in slope and attitude angle; Step 8: After confirming that the pilot has an illusion, guide the pilot to gradually restore spatial orientation through flight instruments and visuals, and provide voice prompts to explain the illusion.

2. The illusion simulation guidance method based on autonomous flight control according to claim 1, characterized in that: In step 1, the simulated flight trajectory includes the starting position and heading; the flight actions include level flight, circling, somersaults, rolls and compound actions.

3. The illusion simulation guidance method based on autonomous flight control according to claim 1, characterized in that: In step 2, the simulation aircraft generates the target flight trajectory action parameters through software or manual operation. In the software or manual operation simulation, the flight parameters are recorded during the flight; the recorded flight parameters include position information and attitude information, the position information includes time information, and the attitude information includes longitude, latitude, altitude, yaw, pitch angle, and roll angle.

4. The illusion simulation guidance method based on autonomous flight control according to claim 1, characterized in that: In step 4, the spatial orientation information includes low visibility, unclear or even invisible horizon.

5. The illusion simulation guidance method based on autonomous flight control according to claim 1, characterized in that: In step 4, the simulated visual environment also includes a flight track display, that is, within a period of time after the target aircraft flies, the trained pilot sees the target's track prompt information through the visual environment to grasp the flight direction and attitude of the target aircraft.

6. The illusion simulation guidance method based on autonomous flight control according to claim 1, characterized in that: In step 5, the target aircraft may also be a plurality of aircraft flying in formation, and the flight trajectories of the relevant fleet may be translated into a formation based on the flight trajectories recorded in step 2.

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