Ejection training assessment system and method

Abstract

The present application discloses an ejection training assessment system and method. The system includes an ejection training seat, an ejection posture acquisition module, an ejection time acquisition module and a comprehensive evaluation module. The ejection posture acquisition module and the ejection time acquisition module are both arranged on the ejection training seat and connected to the comprehensive evaluation module. The ejection posture acquisition module is used to collect the body posture information of the target object during the ejection training process (including the head, back, hip posture and arm activity status), and transmit the information to the comprehensive evaluation module. The ejection time acquisition module is used to collect the ejection time information of the target object (including ejection reaction time and ejection movement time), and transmit the information to the comprehensive evaluation module. The comprehensive evaluation module determines the ejection training assessment result of the target object based on the body posture information and ejection time information. The present application solves the technical problem that the manual evaluation of ejection training results in ejection training scenarios is too subjective and has low credibility.

Description

Technical Field

[0001] The present application relates to the field of flight training technology, and more specifically, to an ejection training assessment system and method. Background Art

[0002] In the field of modern aviation, pilots may encounter emergencies when performing missions, such as aircraft failures, enemy attacks, etc. At this time, the ejection life-saving system is the last safety guarantee for pilots. Its correct and timely use is crucial to ensure the safety of pilots' lives. The ejection seat is a safety device that can quickly eject the pilot from the aircraft and open the parachute in an emergency. However, ejection life-saving is not as simple as pressing a button. It requires the pilot to make a decision in a very short time and use the ejection seat in the correct posture to maximize the probability of survival and reduce physical damage during the ejection process.

[0003] At present, the ejection and rescue training of pilots is mainly carried out on ground simulators, simulating the conditions of aerial ejection, so that pilots can be familiar with the ejection procedure and feel the physical effects of the ejection process. However, the evaluation of the ejection training effect mostly relies on the subjective observation of trainers or experts, judging whether the ejection action and posture of the pilot meet the requirements through video playback or on-site. This evaluation method has the following problems: high subjectivity, the evaluation results are affected by subjective factors such as the trainer's personal experience, observation angle and attention, which may lead to inconsistency in the evaluation; lack of accuracy, it is difficult for human eyes to accurately capture the instantaneous action details and slight posture deviations, especially in the simulation process of high-speed ejection, the judgment of the ejection action may not be accurate enough; feedback delay, video playback takes time, and it is impossible to provide instant feedback in the real-time process of ejection training, which affects the training efficiency and effect; training optimization is difficult, lack of quantitative data, it is difficult to conduct detailed analysis and adjustment of the training plan, which limits the improvement of training level.

[0004] To address the above-mentioned problems, no effective solution has been proposed yet. Summary of the invention

[0005] The embodiments of the present application provide an ejection training assessment system and method to at least solve the technical problem that manual evaluation of ejection training results in ejection training scenarios is too subjective and has low credibility.

[0006] According to one aspect of an embodiment of the present application, there is provided an ejection training assessment system, comprising: an ejection training seat, an ejection posture acquisition module, an ejection time acquisition module and a comprehensive evaluation module, wherein the ejection posture acquisition module and the ejection time acquisition module are both arranged on the ejection training seat and are both connected to the comprehensive evaluation module, wherein the ejection posture acquisition module is used to collect body posture information of a target object during ejection training, and transmit the body posture information to the comprehensive evaluation module, wherein the body posture information at least includes: head posture information, back posture information, hip posture information and arm activity status; the ejection time acquisition module is used to collect ejection time information of the target object during ejection training, and transmit the ejection time information to the comprehensive evaluation module, wherein the ejection time information at least includes: ejection reaction time and ejection movement time; the comprehensive evaluation module is used to determine the ejection training assessment result of the target object based on the body posture information and the ejection time information.

[0007] Optionally, the ejection posture acquisition module includes: at least one first pressure sensor arranged at the headrest position of the ejection training seat, at least one second pressure sensor arranged at the backrest position of the ejection training seat, at least one third pressure sensor arranged at the seat cushion position of the ejection training seat, and two infrared grating sensors respectively arranged at both sides of the ejection training seat and parallel to the arm limiting mechanism of the ejection training seat; wherein, the first pressure signal detected by the first pressure sensor is used to reflect the head posture information of the target object during the ejection training process, the second pressure signal detected by the second pressure sensor is used to reflect the back posture information of the target object during the ejection training process, the third pressure signal detected by the third pressure sensor is used to reflect the hip posture information of the target object during the ejection training process, and the infrared reflection signal detected by the infrared grating sensor is used to reflect the arm activity state of the target object during the ejection training process.

[0008] Optionally, the ejection timing collection module includes: a mechanical sensor and a programmable logic device arranged at the ejection pull ring position of the ejection training seat, wherein the force signal detected by the mechanical sensor is used to reflect the state of the ejection pull ring, and the programmable logic device is used to respectively record a first moment when the ejection training starts, a second moment when the ejection pull ring starts to be subjected to force, and a third moment when the ejection pull ring is completely pulled out, the difference between the second moment and the first moment is the ejection reaction time, and the difference between the third moment and the second moment is the ejection movement time.

[0009] Optionally, a comprehensive evaluation module is used to determine the arm movement range of the target object during the ejection training based on the infrared reflection signal detected by the infrared grating sensor; when the arm movement range is greater than a preset movement range threshold, the ejection training assessment result is directly determined to be unqualified; when the arm movement range is not greater than the movement range threshold, the ejection training assessment result of the target object continues to be determined based on the first pressure signal, the second pressure signal, the third pressure signal, the ejection reaction time and the ejection movement time.

[0010] Optionally, the comprehensive evaluation module maintains a ejection posture scoring table and an ejection time scoring table, wherein the ejection posture scoring table stores different scores corresponding to different pressure signals at different body parts, and the ejection time scoring table stores different scores corresponding to different ejection reaction times and different ejection movement times.

[0011] Optionally, the comprehensive evaluation module is used to normalize all the acquired pressure signals; determine a first average value of all the first pressure signals collected by all the first pressure sensors during the ejection training process, and determine a head posture score corresponding to the first average value according to the ejection posture scoring table; determine a second average value of all the second pressure signals collected by all the second pressure sensors during the ejection training process, and determine a back posture score corresponding to the second average value according to the ejection posture scoring table; determine a third average value of all the third pressure signals collected by all the third pressure sensors during the ejection training process, and determine a hip posture score corresponding to the third average value according to the ejection posture scoring table; and evaluate the head posture. The method comprises the following steps: performing weighted summation of the posture score, the back posture score and the hip posture score to obtain a body posture score; determining the ejection reaction time score corresponding to the ejection reaction time according to the ejection time score table; determining the ejection movement time score corresponding to the ejection movement time according to the ejection time score table; performing weighted summation of the ejection reaction time score and the ejection movement time score to obtain the ejection time score; performing weighted summation of the body posture score and the ejection time score to obtain the ejection training assessment score; and determining that the ejection training assessment result is qualified when the ejection training assessment score is not less than a preset scoring threshold, and determining that the ejection training assessment result is unqualified when the ejection training assessment score is less than the scoring threshold.

[0012] Optionally, the system also includes: a monitoring module, which includes: a display interface, wherein a ejection posture acquisition module is used to transmit the collected first pressure signals, second pressure signals, third pressure signals, and infrared reflection signals to the display interface for display in real time; an ejection time acquisition module is used to transmit the ejection reaction time and the ejection movement time to the display interface for display; and a comprehensive evaluation module is used to transmit the ejection training assessment results to the display interface for display.

[0013] According to another aspect of an embodiment of the present application, a ejection training assessment method is also provided, including: collecting body posture information and ejection time information of a target object during ejection training, wherein the body posture information includes at least: head posture information, back posture information, hip posture information and arm activity status, and the ejection time information includes at least: ejection reaction time and ejection movement time; determining a body posture score based on the body posture information, and determining an ejection time score based on the ejection time information; performing weighted summation of the body posture score and the ejection time score to obtain an ejection training assessment score for the target object.

[0014] According to another aspect of an embodiment of the present application, a computer program product is also provided, the computer program product comprising: a computer program, wherein when the computer program is executed by a processor, the above-mentioned ejection training assessment method is implemented.

[0015] According to another aspect of an embodiment of the present application, an electronic device is further provided, comprising: a memory and a processor, wherein a computer program is stored in the memory, and the processor is configured to execute the above-mentioned ejection training assessment method through the computer program.

[0016] In an embodiment of the present application, an ejection training and assessment system includes an ejection training seat, an ejection posture acquisition module, an ejection time acquisition module and a comprehensive evaluation module. The ejection posture acquisition module and the ejection time acquisition module are both arranged on the ejection training seat and are both connected to the comprehensive evaluation module. The ejection posture acquisition module is used to collect the body posture information of the target object during the ejection training process, and transmit the body posture information to the comprehensive evaluation module, wherein the body posture information at least includes: head posture information, back posture information, hip posture information and arm activity status; the ejection time acquisition module is used to collect the ejection time information of the target object during the ejection training process, and transmit the ejection time information to the comprehensive evaluation module, wherein the ejection time information at least includes: ejection reaction time and ejection movement time; the comprehensive evaluation module is used to determine the ejection training assessment result of the target object based on the body posture information and the ejection time information. Through this system, the real-time data collection of the ejection posture acquisition module and the ejection time acquisition module, the system can provide objective evaluation based on pressure signals and time signals, overcoming the subjectivity and inaccuracy of traditional human observation. The comprehensive evaluation module can process and analyze the incoming data in real time, and quickly give the ejection training assessment results. The system not only focuses on the static ejection posture (such as the position of the head, back, hips, and arm activity status), but also considers the dynamic ejection time (including ejection reaction time and ejection movement time) to ensure that the assessment covers all key indicators of ejection training. The display interface of the monitoring module can display training data and scoring results in real time. Instructors and pilots can instantly grasp the training progress and effects, effectively improving training efficiency and resource utilization, and thus solving the technical problem that manual evaluation of ejection training results in ejection training scenarios is too subjective and has low credibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0018] Figure 1 is a structural schematic diagram of an optional ejection training and assessment system according to an embodiment of the present application;

[0019] Figure 2 is a schematic diagram of the actual structural composition of an optional ejection training seat according to an embodiment of the present application;

[0020] Figure 3 It is a schematic diagram of the sensor layout of an optional ejection training seat and the data transmission of a corresponding data acquisition control box according to an embodiment of the present application;

[0021] Figure 4is a schematic diagram of an optional display interface according to an embodiment of the present application;

[0022] Figure 5 is a schematic diagram of an actual flow of an optional ejection training assessment system during ejection training according to an embodiment of the present application;

[0023] Figure 6 is a schematic diagram of the actual installation of an optional ejection training and assessment system according to an embodiment of the present application;

[0024] Figure 7 is a structural schematic diagram of an optional ejection training assessment method according to an embodiment of the present application;

[0025] Figure 8 It is a schematic diagram of the structure of an optional electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0027] It should be noted that the terms "first", "second", etc. in the specification, claims and drawings of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0028] Example 1

[0029] According to the embodiment of the present application, a ejection training assessment system is first provided, such as Figure 1 As shown, the system at least includes: an ejection training seat 11, an ejection posture acquisition module 12, an ejection time acquisition module 13 and a comprehensive evaluation module 14. The ejection posture acquisition module 12 and the ejection time acquisition module 13 are both arranged on the ejection training seat 11 and are both connected to the comprehensive evaluation module 14.

[0030] The ejection posture acquisition module 12 is used to collect the body posture information of the target object during the ejection training process and transmit the body posture information to the comprehensive evaluation module, wherein the body posture information at least includes: head posture information, back posture information, hip posture information and arm activity status;

[0031] The ejection time acquisition module 13 is used to collect the ejection time information of the target object during the ejection training process and transmit the ejection time information to the comprehensive evaluation module, wherein the ejection time information at least includes: ejection reaction time and ejection movement time;

[0032] The comprehensive evaluation module 14 is used to determine the ejection training assessment result of the target object based on the body posture information and the ejection time information.

[0033] The following is an explanation of the functions of each module in the ejection training and assessment system in conjunction with the specific implementation process.

[0034] The ejection training and assessment system of the embodiment of the present application at least includes: an ejection training seat, an ejection posture collection module, an ejection time collection module and a comprehensive evaluation module.

[0035] Optionally, the ejection posture acquisition module includes: at least one first pressure sensor arranged at the headrest position of the ejection training seat, at least one second pressure sensor arranged at the backrest position of the ejection training seat, at least one third pressure sensor arranged at the seat cushion position of the ejection training seat, and two infrared grating sensors respectively arranged at both sides of the ejection training seat and parallel to the arm limiting mechanism of the ejection training seat; wherein, the first pressure signal detected by the first pressure sensor is used to reflect the head posture information of the target object during the ejection training process, the second pressure signal detected by the second pressure sensor is used to reflect the back posture information of the target object during the ejection training process, the third pressure signal detected by the third pressure sensor is used to reflect the hip posture information of the target object during the ejection training process, and the infrared reflection signal detected by the infrared grating sensor is used to reflect the arm activity state of the target object during the ejection training process.

[0036] Figure 2 A schematic diagram of the actual structure of an ejection training seat according to an embodiment of the present application is given. Figure 2 As shown, the first pressure sensor: at least one, installed at the headrest position of the ejection training seat Figure 2 The headrest signal acquisition module is used to monitor the contact pressure between the head and the headrest to determine whether the head is close to the headrest, reduce the forward swing of the head during ejection, and thus avoid or reduce the probability of head injury. Second pressure sensor: at least one, installed at the backrest position, that is, Figure 2The backrest signal acquisition module in the seat monitors the contact pressure between the back and buttocks and the seat back to ensure the stability of the body during the ejection process, reduce body shaking, and avoid body injuries caused by improper posture. The third pressure sensor: at least one, installed in the seat cushion position, that is, Figure 2 The seat cushion signal acquisition module monitors the pressure distribution of the buttocks when sitting, which helps to ensure an upright sitting posture and reduce the probability of injury during ejection caused by unstable center of gravity. Infrared grating sensor: two, installed on both sides of the seat. Figure 2 The dual-arm signal acquisition module in the ejection training seat is parallel to the arm limit mechanism of the ejection training seat. It is used to detect the activity state of the pilot's arms during ejection training, determine whether it exceeds the safety limit range, prevent the arm from colliding with the cockpit due to excessive amplitude, and reduce the risk of casualties. In the specific implementation process, the sensor identification number can be attached to the corresponding position of the sensor. The sensor identification number corresponds to the physical position of the sensor on the seat. The identification material is a soft adhesive label. The relevant auxiliary number is set in the program to identify the relative position relationship of the sensor, so as to accurately determine the posture error and the specific position of the wrong posture.

[0037] In addition, components such as data acquisition control boxes and transmission lines are key parts for processing and transmitting sensor data. Sensors are connected to the data acquisition control box through transmission lines, and the transmission lines are responsible for signal transmission. The data acquisition control box can support data acquisition from multiple sensors, and the specific number depends on its internal design and interface capabilities. For example, a data acquisition control box may support sampling of 8 sensors, which means it can process sensor signals from 8 different locations at the same time. The data acquisition control box can be implemented in many ways, such as using different series of single-chip microcomputers, A / D conversion chips with different resolutions, etc. It needs to support sampling, limiting, and normalization of multi-sensor data, and communicate with the evaluation computer through a serial bus (such as a 485 communication bus). The type and specifications of the transmission line can also be adjusted according to actual needs and environmental conditions, and it is necessary to ensure accurate data transmission.

[0038] Figure 3 The sensor layout of the ejection training seat and the corresponding data acquisition control box data transmission diagram are given. Figure 3 In the ejection training seat, the first pressure sensor is set at the headrest position. The sensor position is determined according to the eyeline position on the seat to ensure that the head can touch the sensor when sitting backward. The number of sensors is not limited. Figure 3 A dual sensor layout is used to ensure the head pressure detection effect. A second pressure sensor is set at the backrest position of the ejection training seat. The sensor position is determined according to the physiological characteristics of the human body to ensure that the waist and back can contact the sensor when sitting backwards. The number of sensors is not limited. Figure 3Six second pressure sensors are arranged in the middle, which are arranged at the shoulders, back and both sides of the waist to ensure the detection effect of waist and back pressure. The third pressure sensor is set at the seat cushion of the ejection training seat. The sensor position is determined according to the physiological characteristics of the human body and is set symmetrically on the left and right to ensure that the pressure distribution of the buttocks when sitting can be monitored. The number of sensors is not limited. Figure 3 Eight sensors are arranged in an "inverted eight" shape according to the shape of the human buttocks to ensure the detection effect of buttocks pressure distribution. Figure 3 In the , the sensor identification number corresponds to the physical location of the sensor on the seat, such as 2 sensors on the head, 6 sensors on the back and 8 sensors on the seat cushion.

[0039] like Figure 3 As shown, the first pressure signal and the second pressure signal, i.e., the signals of the headrest and backrest positions, are processed by the acquisition control box 1, and the third pressure signal, i.e., the signal of the seat cushion position, is processed by the acquisition control box 2. Each control box supports the sampling of 8 sensors, and can integrate a 51 series single-chip microcomputer and a 12-bit resolution A / D conversion chip internally, time-sharingly transform the output signals of the 8 pressure sensors, convert the analog signals of the sensors into digital signals, and then perform digital filtering processing by the single-chip microcomputer to enhance the purity of the signal, reduce noise interference, and ensure the accuracy and reliability of the data. Figure 3 As shown, the processed data is sent to the evaluation computer via the 485 serial bus. The communication between the control box and the computer adopts a master-slave mode, in which the evaluation computer plays the role of the host and calls the data acquisition control box through the address selection switch. The called control box exchanges data with the computer through the 485 bus, while the control box that is not called remains silent. This mechanism ensures the orderliness and efficiency of data transmission. In addition, the circuit design of the control box is described as standardized, which means that the signal acquisition control boxes in different parts (backrest, headrest, seat cushion) are the same in circuit structure and can be interchanged by simply setting the address selection switch correctly.

[0040] The data transmission process between the sensor, the data acquisition control box and the evaluation computer can refer to the following steps: mainly realized through serial communication: baud rate is 115200; data bit is 8 bits; stop bit is 1 bit; no check bit. The two sampling boxes each determine the ID number, the ID number of the acquisition control box at the seat position is 30H, and the ID number of the acquisition control box at the backrest and headrest position is 31H.

[0041] The sampling period set by the system is 5 milliseconds, that is, the sensor collects data at each time slice to ensure that subtle changes in the ejection training process can be captured. The communication period must be greater than or equal to the sampling period.

[0042] Using a master-slave serial communication protocol, the host computer (i.e., the evaluation computer) starts the communication cycle by sending a specific hexadecimal data string (such as 55AA ID number), and the data acquisition box corresponding to the ID number starts sampling and transmitting data to ensure orderly transmission and correct reception of data. The data uploaded by the acquisition control box is in hexadecimal format, with 19 bytes uploaded per cycle. The data and physical meaning are shown in Table 1:

[0043] Table 1 The data acquisition control box uploads 19 bytes of data per cycle and its physical meaning

[0044]

[0045] The specific selection parameters of the pressure sensor and infrared grating sensor can refer to the following selection method: For the first and second pressure sensors, in order to meet the pressure detection requirements of different parts, diaphragm pressure sensors can be preferably used, and the sensor range at the headrest backrest is 2 kg to ensure accurate detection of head and back pressure. For the third pressure sensor, the sensor range at the seat cushion is 5 kg to adapt to the larger pressure distribution detection of the buttocks. For the infrared grating sensor, which consists of an infrared transmitter and a receiver, it is used to detect whether the arm is beyond the safety range. Its specific selection should ensure a high response speed so that it can respond immediately to the rapidly changing arm position.

[0046] Optionally, the ejection timing collection module includes: a mechanical sensor and a programmable logic device arranged at the ejection pull ring position of the ejection training seat, wherein the force signal detected by the mechanical sensor is used to reflect the state of the ejection pull ring, and the programmable logic device is used to respectively record a first moment when the ejection training starts, a second moment when the ejection pull ring starts to be subjected to force, and a third moment when the ejection pull ring is completely pulled out, the difference between the second moment and the first moment is the ejection reaction time, and the difference between the third moment and the second moment is the ejection movement time.

[0047] Among them, the mechanical sensor is installed at the ejection pull ring position of the ejection training seat to monitor the stress state of the pull ring in real time. When the pilot responds to the ejection command and starts to pull the pull ring, the mechanical sensor can immediately capture the application of force. This moment is recorded as "the second moment when the ejection pull ring begins to be subjected to force."

[0048] PLDs can also work in conjunction with mechanical sensors to record key time points throughout the ejection training process. PLDs are associated with the controller of the ejection training system: when the ejection command is issued, the PLD records the "first moment of the start of ejection training"; when the pull ring is detected to be stressed, the "second moment of the ejection pull ring starting to be stressed" is recorded; when the pull ring is fully pulled out, that is, when the ejection conditions are met, the "third moment of the ejection pull ring being fully pulled out" is recorded. PLDs not only record these moments, but also calculate two important time differences based on the collected signals: ejection reaction time (the difference between the second moment and the first moment) and ejection movement time (the difference between the third moment and the second moment). These two time differences directly reflect the pilot's reaction speed after receiving the ejection command and the efficiency of executing the ejection action, and are important objective indicators for evaluating the effectiveness of ejection training.

[0049] There are many ways to implement the ejection time acquisition module, but the key is to ensure the response speed and accuracy of the mechanical sensor, as well as the sampling and data processing capabilities of the programmable logic device. It is recommended to use a programmable logic device controller with a response time of not less than 10ms to ensure the real-time and accuracy of the data. Any microcontroller or control system that can achieve high-precision time measurement and data processing can be used as an alternative. The selection of mechanical sensors is also crucial. Sensors with high precision and fast response characteristics should be preferred to accurately capture the moment when the pull ring is subjected to force. The sensor range should match the expected force on the pull ring to ensure the validity and reliability of the data. The mechanical sensor can be piezoresistive, capacitive, piezoelectric or vibration frequency, as long as it can meet the response speed and accuracy requirements.

[0050] Optionally, the comprehensive evaluation module is used to determine the arm movement range of the target object during the ejection training process based on the infrared reflection signal detected by the infrared grating sensor. When the arm movement range is not greater than the movement range threshold, the ejection training assessment result of the target object is continued to be determined based on the first pressure signal, the second pressure signal, the third pressure signal, the ejection reaction time and the ejection movement time. When the arm movement range is greater than the preset movement range threshold, the ejection training assessment result is directly determined to be unqualified. This is because in a real ejection, an excessive arm range can easily lead to a collision with the cockpit, increasing the risk of casualties. This direct unqualified mechanism ensures the safety of training and emphasizes the importance of correctly executing ejection preparation actions.

[0051] Optionally, the comprehensive evaluation module maintains a ejection posture scoring table and an ejection time scoring table, wherein the ejection posture scoring table stores different scores corresponding to different pressure signals at different body parts, and the ejection time scoring table stores different scores corresponding to different ejection reaction times and different ejection movement times.

[0052] Among them, the ejection posture score table stores the correspondence between pressure signals of multiple levels or thresholds and scores. The pressure signals are detected by the pressure sensor in the ejection posture acquisition module. The score table has established quantitative standards for the stress conditions of the head, back and buttocks. For example, if the pressure signal of the head reaches or exceeds a certain set threshold, it means that the head posture is correct and the score is high; if it is lower than the threshold, it means that the head is not fully leaning back and the score is low. Similarly, the force distribution of the back and buttocks is also included in the score table to quantitatively evaluate the pilot's sitting uprightness and the protection status of the back and buttocks during ejection training.

[0053] The ejection time scoring table sets scoring standards for reaction time and movement time in ejection training. Reaction time (the time from receiving the ejection command to starting to pull the ejection ring) and movement time (the time from starting to pull the ring to completing the ejection action) are key indicators for evaluating the pilot's rapidity and execution efficiency. The scoring table sets scores based on different time intervals. For example, a reaction time of less than 1 second may have the highest score, while a reaction time of more than 2 seconds may have a lower score, reflecting the importance of rapid response in emergency situations.

[0054] Optionally, the comprehensive evaluation module can calculate the body posture score in the following manner:

[0055] S1, normalize all the acquired pressure signals;

[0056] S21, determining a first average value of all first pressure signals collected by all first pressure sensors during the ejection training process, and determining a head posture score corresponding to the first average value according to the ejection posture scoring table;

[0057] S22, determining a second average value of all second pressure signals collected by all second pressure sensors during the ejection training process, and determining a back posture score corresponding to the second average value according to the ejection posture scoring table;

[0058] S23, determining a third average value of all third pressure signals collected by all third pressure sensors during the ejection training process, and determining a hip posture score corresponding to the third average value according to the ejection posture scoring table;

[0059] S3, performing weighted summation of the head posture score, the back posture score, and the hip posture score to obtain a body posture score.

[0060] The comprehensive evaluation module is also used to determine the ejection reaction time score corresponding to the ejection reaction time based on the ejection time score table: determine the ejection movement time score corresponding to the ejection movement time based on the ejection time score table, and then perform weighted summation of the ejection reaction time score and the ejection movement time score to obtain the ejection time score.

[0061] After obtaining the body posture score and the ejection time score, the comprehensive evaluation module can also perform weighted summation on the body posture score and the ejection time score to obtain the ejection training assessment score, wherein when the ejection training assessment score is not less than a preset scoring threshold, the ejection training assessment result is determined to be qualified; when the ejection training assessment score is less than the scoring threshold, the ejection training assessment result is determined to be unqualified.

[0062] The ejection posture scoring table and ejection time scoring table designed by the comprehensive evaluation module not only provide objective quantitative evaluation criteria, but also allow the scoring weights to be adjusted according to the training objectives and the specific needs of the personnel. For example, if the training focuses more on the correctness of the posture, the weight of the ejection posture score may be higher; conversely, if the training focuses on improving reaction speed, the weight of the ejection time score will increase accordingly. The evaluation computer combines the results of the two scoring tables through an algorithm to give the final objective evaluation results of the ejection training. This evaluation result not only reflects the actual performance of the pilots in training, but also reflects the importance attached to key evaluation indicators.

[0063] For example, assuming the body posture score is A and the ejection time score is B, the ejection training assessment score can be calculated using the following formula:

[0064] C=αA+βB

[0065] Wherein, C represents the ejection training assessment score, A represents the body posture score, B represents the ejection time score, α and β represent weight coefficients, and α+B=1. The values ​​of α and β are determined according to the specific training purpose. Generally, α=β=0.5 can be taken. If the focus is on ejection posture training, α>β is taken. If the focus is on ejection reaction speed training, β>α is taken.

[0066] It should be noted that the specific data and thresholds of the scoring table need to be carefully designed and adjusted based on laboratory tests, pilot feedback and expert opinions to ensure the scientificity and fairness of the scoring. The evaluation computer reads the data from the ejection posture acquisition module and the ejection time acquisition module, and automatically calculates the pressure score, reaction time and movement time score of the relevant parts by comparing with the scoring table, and then conducts a comprehensive analysis based on the preset scoring weights to finally obtain a comprehensive evaluation result.

[0067] Optionally, the system also includes: a monitoring module, which includes: a display interface, wherein a ejection posture acquisition module is used to transmit the collected first pressure signals, second pressure signals, third pressure signals, and infrared reflection signals to the display interface for display in real time; an ejection time acquisition module is used to transmit the ejection reaction time and the ejection movement time to the display interface for display; and a comprehensive evaluation module is used to transmit the ejection training assessment results to the display interface for display.

[0068] The monitoring module, through its display interface, realizes real-time monitoring and display of key indicators during ejection training, providing instant feedback to coaches and pilots, and is an indispensable part of this system. Through the monitoring module, trainers can instantly understand whether their posture and reaction time meet the standards, which helps to make self-adjustments and optimizations during training, and also provides a basis for coaches to guide training and evaluate training results.

[0069] Figure 4 A schematic diagram of a display interface is given, such as Figure 4 As shown, after receiving the data, the system will classify the data according to the identification number, and then use the actual physical meaning corresponding to the identification number (such as pressure value, infrared light on and off status) to perform a comprehensive analysis, and display each first pressure signal such as identification number 1 and 2 at the headrest, each second pressure signal such as identification number 3 to identification number 8 at the backrest, and each third pressure signal such as identification number 1 to identification number 8 at the seat cushion. The pressure value of the corresponding sensor is displayed in turn according to each identification number. If the sensor pressure value corresponding to the identification number exceeds the set threshold, it will be regarded as meeting the ejection posture requirement, otherwise it may be recorded as an improper posture.

[0070] Figure 5 The actual flow chart of the ejection training assessment system in the ejection training process is given, such as Figure 5 As shown, the process starts from the "start" node and enters the ejection training preparation stage. The ejection command is issued, the central pull ring is activated, the human chair is ejected from the ground, the human chair returns to the ground, and the ejection ends. Among them, from the ejection training preparation stage to the process of the human chair being ejected from the ground, the sensors of the ejection posture acquisition system and the ejection posture acquisition module of the embodiment of the present application begin to monitor the pressure distribution of the head, back and buttocks, as well as the activity status of the arms in real time, reflecting whether the pilot's posture is accurate, and finally obtain the ejection posture evaluation result A, that is, the body posture score. From the stage of issuing the ejection command to the process of the human chair being ejected from the ground, the ejection timing acquisition system, that is, the timer in the ejection time acquisition module of the embodiment of the present application, starts to record the start time T0, at which time the ejection training officially begins, and records the time when the pull ring starts to be subjected to force and the time when the pull ring is completely pulled out, reflecting the speed and efficiency of the pilot in completing the ejection action, and finally obtains the ejection evaluation result B, that is, the ejection time score. The results of the two are combined to obtain the final ejection training evaluation result, that is, the ejection training assessment score. Among them, the actual installation diagram of the system is shown in FIG. Figure 6 shown.

[0071] In an embodiment of the present application, an ejection training and assessment system includes an ejection training seat, an ejection posture acquisition module, an ejection time acquisition module and a comprehensive evaluation module. The ejection posture acquisition module and the ejection time acquisition module are both arranged on the ejection training seat and are both connected to the comprehensive evaluation module. The ejection posture acquisition module is used to collect the body posture information of the target object during the ejection training process, and transmit the body posture information to the comprehensive evaluation module, wherein the body posture information at least includes: head posture information, back posture information, hip posture information and arm activity status; the ejection time acquisition module is used to collect the ejection time information of the target object during the ejection training process, and transmit the ejection time information to the comprehensive evaluation module, wherein the ejection time information at least includes: ejection reaction time and ejection movement time; the comprehensive evaluation module is used to determine the ejection training assessment result of the target object based on the body posture information and the ejection time information. Through this system, the real-time data collection of the ejection posture acquisition module and the ejection time acquisition module, the system can provide objective evaluation based on pressure signals and time signals, overcoming the subjectivity and inaccuracy of traditional human observation. The comprehensive evaluation module can process and analyze the incoming data in real time, and quickly give the ejection training assessment results. The system not only focuses on the static ejection posture (such as the position of the head, back, hips, and arm activity status), but also considers the dynamic ejection time (including ejection reaction time and ejection movement time) to ensure that the assessment covers all key indicators of ejection training. The display interface of the monitoring module can display training data and scoring results in real time. Instructors and pilots can instantly grasp the training progress and effects, effectively improving training efficiency and resource utilization, and thus solving the technical problem that manual evaluation of ejection training results in ejection training scenarios is too subjective and has low credibility.

[0072] Example 2

[0073] According to an embodiment of the present application, a method for ejection training assessment is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0074] Figure 7 is a flow chart of a method for ejection training and assessment provided according to an embodiment of the present application, such as Figure 7 As shown, the method comprises the following steps:

[0075] Step S702, collecting the body posture information and ejection time information of the target object during the ejection training process, wherein the body posture information at least includes: head posture information, back posture information, hip posture information and arm activity status, and the ejection time information at least includes: ejection reaction time and ejection movement time;

[0076] Step S704, determining a body posture score according to the body posture information, and determining a ejection time score according to the ejection time information;

[0077] Step S706, performing weighted summation on the body posture score and the ejection time score to obtain the ejection training assessment score of the target object.

[0078] The following describes the various steps of the ejection training assessment method in conjunction with the specific implementation process.

[0079] When the simulated ejection training begins, the ejection posture acquisition system is immediately activated, and the sensors begin to monitor the pressure distribution of the head, back and buttocks, as well as the activity status of the arms in real time.

[0080] The body posture information of the target object during the ejection training is collected, wherein the body posture information at least includes: head posture information, back posture information, hip posture information and arm activity status.

[0081] Among them, at least one first pressure sensor is used to collect the data. The sensor is located at the headrest position of the ejection training seat, and monitors the pilot's head back pressure in real time to reflect whether the head is close to the headrest, which meets the ejection training requirements. At least one second pressure sensor is used for real-time monitoring at the backrest position of the ejection training seat to obtain the pressure distribution of the back and waist back, whether it is kept close to the seat as required, and ensure the correct upper body posture. Two infrared grating sensors are set on both sides of the seat and parallel to the arm limit mechanism of the seat to monitor in real time whether the arms are beyond the safe ejection range, to ensure that the arms are within the limit during the ejection process and prevent collision with the cockpit.

[0082] When the coach or the system automatically issues the ejection command, the timer in the ejection timing collection system starts and records the start time T0. At this time, the ejection training officially begins.

[0083] After hearing the command, the pilot (trainee) quickly activates the central pull ring. The mechanical sensor detects the force on the pull ring and records the time T1, which is the time the trainee reacts.

[0084] The mechanical sensor and programmable logic controller in the ejection timing acquisition module record the first moment (T0) at the beginning of ejection training, and record the second moment (T1) when it is detected that the central pull ring begins to be subjected to force, and calculate T1-T0 to obtain the ejection reaction time. The same module records the time from the beginning of the central pull ring being subjected to force (T1) to the complete pulling out (T2), and calculates T2-T1 to obtain the ejection movement time, which reflects the speed and efficiency of the pilot in completing the ejection action.

[0085] As the pull ring is fully pulled out (ejection conditions are met), the ejection training seat simulates the ejection action, and sensors continuously monitor the pilot's ejection posture to ensure it is maintained correctly, reducing the risk of injury during ejection.

[0086] During the entire ejection training process, the ejection posture acquisition system continuously monitors the pilot's posture, and the double-arm infrared detection system ensures that the double arms do not exceed the limit during the ejection process. After the ejection training is completed, all sensors stop data acquisition, and the data acquisition box completes uploading the last data packet to the evaluation computer.

[0087] The evaluation computer performs comprehensive analysis and scoring based on the collected sensor data and ejection time, determines the body posture score based on the body posture information, and determines the ejection time score based on the ejection time information.

[0088] Among them, the evaluation computer determines the head posture score, back posture score and arm movement range score based on the data obtained from the first and second pressure sensors and the infrared grating sensor, combined with the ejection posture score table (recording different scores corresponding to different pressure signals). If the arm movement range exceeds the preset threshold, the ejection training assessment result is directly judged as unqualified. Based on the ejection reaction time and the ejection movement time, the evaluation computer refers to the ejection time score table (recording different scores corresponding to different times) to obtain the ejection reaction time score and the ejection movement time score.

[0089] The body posture score and the ejection time score are weighted and summed to obtain the ejection training assessment score of the target object.

[0090] The evaluation computer sets different weights for body posture scores and ejection time scores according to the training goals and requirements, and performs weighted calculations. The head posture score, back posture score, arm range of motion score (if it does not exceed the threshold) are weighted and summed with the ejection reaction time score and ejection movement time score to finally obtain the ejection training assessment score.

[0091] If the assessment score is not lower than the preset scoring threshold, the ejection training assessment result is confirmed to be qualified; if the assessment score is lower than the scoring threshold, or the arm movement range exceeds the threshold, the assessment result is unqualified.

[0092] It should be noted that each module in the ejection training assessment method in the embodiment of the present application corresponds one by one to each implementation step of the ejection training assessment system in Example 1. Since a detailed description has been given in Example 1, some details not reflected in this embodiment can be referred to Example 1, and will not be repeated here.

[0093] Example 3

[0094] According to an embodiment of the present application, a computer program product is also provided, which includes a computer program, wherein when the computer program is executed by a processor, the ejection training assessment method in Example 2 is implemented.

[0095] According to an embodiment of the present application, a non-volatile storage medium is also provided, which includes a stored computer program, wherein the device where the non-volatile storage medium is located executes the ejection training assessment method in Example 2 by running the computer program.

[0096] According to an embodiment of the present application, a processor is also provided, which is used to run a computer program, wherein the ejection training assessment method in Example 2 is executed when the computer program is running.

[0097] According to an embodiment of the present application, an electronic device is also provided, which includes: a memory and a processor, wherein a computer program is stored in the memory, and the processor is configured to execute the ejection training assessment method in Example 2 through the computer program.

[0098] Specifically, when the computer program is running, the following steps are executed: collecting the body posture information and ejection time information of the target object during the ejection training process, wherein the body posture information at least includes: head posture information, back posture information, hip posture information and arm activity status, and the ejection time information at least includes: ejection reaction time and ejection movement time; determining a body posture score based on the body posture information, and determining an ejection time score based on the ejection time information; and performing weighted summation on the body posture score and the ejection time score to obtain the ejection training assessment score of the target object.

[0099] As an optional implementation, the electronic device may be in the form of a mobile terminal, a computer terminal or a similar computing device. Figure 8 The hardware structure block diagram of an electronic device for implementing the ejection training assessment method is shown. Figure 8 As shown, the electronic device 80 may include one or more (802a, 802b, ..., 802n are used to illustrate) processors 802 (the processor 802 may include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA), a memory 804 for storing data, and a transmission device 806 for communication functions. In addition, it may also include: a display, an input / output interface (I / O interface), a universal serial bus (USB) port (which may be included as one of the ports of the BUS bus), a network interface, a power supply and / or a camera. It can be understood by those skilled in the art that Figure 8 The structure shown is only for illustration and does not limit the structure of the above electronic device. Figure 8 More or fewer components as shown, or with Figure 8 Different configurations are shown.

[0100] It should be noted that the one or more processors 802 and / or other data processing circuits described above may generally be referred to herein as "data processing circuits". The data processing circuits may be embodied in whole or in part as software, hardware, firmware, or any other combination thereof. In addition, the data processing circuit may be a single independent processing module, or may be incorporated in whole or in part into any of the other components in the electronic device 80. As described in the embodiments of the present application, the data processing circuit acts as a processor control (e.g., selection of a variable resistor terminal path connected to an interface).

[0101] The memory 804 can be used to store software programs and modules of application software, such as the program instructions / data storage device corresponding to the ejection training assessment method in the embodiment of the present application. The processor 802 executes various functional applications and data processing by running the software programs and modules stored in the memory 804, that is, realizing the vulnerability detection method of the above-mentioned application. The memory 804 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory 804 may further include a memory remotely arranged relative to the processor 802, and these remote memories may be connected to the electronic device 80 via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0102] The transmission device 806 is used to receive or send data via a network. The specific example of the above network may include a wireless network provided by a communication provider of the electronic device 80. In one example, the transmission device 806 includes a network adapter (Network Interface Controller, NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 806 can be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0103] The display may be, for example, a touch screen liquid crystal display (LCD) that enables a user to interact with a user interface of the electronic device 80 .

[0104] The serial numbers of the above embodiments are only for description and do not represent the advantages or disadvantages of the embodiments.

[0105] In the above embodiments of the present application, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0106] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of units can be a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0107] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed over multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0108] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0109] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art or all or part of the technical solution, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, server or network device, etc.) to perform all or part of the steps of each embodiment method of the present application. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, disk or optical disk, etc. Various media that can store program codes.

[0110] The above are only preferred implementations of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A ejection training and assessment system, characterized in that: include: An ejection training seat, an ejection posture collection module, an ejection time collection module and a comprehensive evaluation module, wherein the ejection posture collection module and the ejection time collection module are both arranged on the ejection training seat and are both connected to the comprehensive evaluation module, wherein: The ejection posture acquisition module is used to collect the body posture information of the target object during the ejection training process, and transmit the body posture information to the comprehensive evaluation module, wherein the body posture information at least includes: head posture information, back posture information, hip posture information and arm activity status; The ejection time acquisition module is used to collect the ejection time information of the target object during the ejection training process, and transmit the ejection time information to the comprehensive evaluation module, wherein the ejection time information at least includes: ejection reaction time and ejection movement time; The comprehensive evaluation module is used to determine the ejection training assessment result of the target object according to the body posture information and the ejection time information; Among them, the ejection timing collection module includes: a mechanical sensor and a programmable logic device arranged at the ejection pull ring position of the ejection training seat, the force signal detected by the mechanical sensor is used to reflect the state of the ejection pull ring, and the programmable logic device is used to respectively record the first moment when the ejection training starts, the second moment when the ejection pull ring starts to be subjected to force, and the third moment when the ejection pull ring is completely pulled out, the difference between the second moment and the first moment is the ejection reaction time, and the difference between the third moment and the second moment is the ejection movement time.

2. The system according to claim 1, characterized in that The ejection posture acquisition module includes: at least one first pressure sensor disposed at the headrest position of the ejection training seat, at least one second pressure sensor disposed at the backrest position of the ejection training seat, at least one third pressure sensor disposed at the seat cushion position of the ejection training seat, and two infrared grating sensors disposed at both sides of the ejection training seat and parallel to the arm limit mechanism of the ejection training seat; Among them, the first pressure signal detected by the first pressure sensor is used to reflect the head posture information of the target object during the ejection training, the second pressure signal detected by the second pressure sensor is used to reflect the back posture information of the target object during the ejection training, the third pressure signal detected by the third pressure sensor is used to reflect the hip posture information of the target object during the ejection training, and the infrared reflection signal detected by the infrared grating sensor is used to reflect the arm activity state of the target object during the ejection training.

3. The system according to claim 2, characterized in that The comprehensive evaluation module is used to determine the arm movement amplitude of the target object during the ejection training process based on the infrared reflection signal detected by the infrared grating sensor; when the arm movement amplitude is greater than a preset movement amplitude threshold, directly determine the ejection training assessment result as unqualified; when the arm movement amplitude is not greater than the movement amplitude threshold, continue to determine the ejection training assessment result of the target object based on the first pressure signal, the second pressure signal, the third pressure signal, the ejection reaction time and the ejection movement time.

4. The system according to claim 2, characterized in that The comprehensive evaluation module maintains a ejection posture scoring table and an ejection time scoring table, wherein the ejection posture scoring table stores different scores corresponding to different pressure signals at different body parts, and the ejection time scoring table stores different scores corresponding to different ejection reaction times and different ejection movement times.

5. The system according to claim 4, characterized in that The comprehensive evaluation module is used to normalize all the acquired pressure signals; determine a first average value of all the first pressure signals collected by all the first pressure sensors during the ejection training, and determine a head posture score corresponding to the first average value according to the ejection posture scoring table; determine a second average value of all the second pressure signals collected by all the second pressure sensors during the ejection training, and determine a back posture score corresponding to the second average value according to the ejection posture scoring table; Determine a third average value of all the third pressure signals collected by all the third pressure sensors during the ejection training process, and determine a hip posture score corresponding to the third average value according to the ejection posture score table; perform weighted summation on the head posture score, the back posture score and the hip posture score to obtain a body posture score; It is also used to determine the ejection reaction time score corresponding to the ejection reaction time according to the ejection time score table; determine the ejection movement time score corresponding to the ejection movement time according to the ejection time score table; and perform weighted summation of the ejection reaction time score and the ejection movement time score to obtain the ejection time score; Performing a weighted summation on the body posture score and the ejection time score to obtain an ejection training assessment score; When the ejection training assessment score is not less than a preset score threshold, the ejection training assessment result is determined to be qualified; when the ejection training assessment score is less than the score threshold, the ejection training assessment result is determined to be unqualified.

6. The system according to claim 2, characterized in that The system also includes: a monitoring module, and the monitoring module includes: a display interface, wherein: The ejection posture acquisition module is used to transmit the collected first pressure signals, the second pressure signals, the third pressure signals, and the infrared reflection signals to the display interface for display in real time; The ejection time acquisition module is used to transmit the ejection reaction time and the ejection movement time to the display interface for display; The comprehensive evaluation module is used to transmit the ejection training assessment results to the display interface for display.

7. A method for ejection training assessment, characterized in that: include: Collecting the body posture information and ejection time information of the target object during the ejection training, wherein the body posture information at least includes: head posture information, back posture information, hip posture information and arm activity status, and the ejection time information at least includes: ejection reaction time and ejection movement time; Determining a body posture score based on the body posture information, and determining a ejection time score based on the ejection time information; Performing a weighted summation on the body posture score and the ejection time score to obtain the ejection training assessment score of the target object; Among them, the process of determining the ejection timing information includes: determining the state of the ejection pull ring through the force signal detected by the mechanical sensor in the ejection timing acquisition module, and recording the first moment when the ejection training starts, the second moment when the ejection pull ring starts to be subjected to force, and the third moment when the ejection pull ring is completely pulled out through the programmable logic device in the ejection timing acquisition module, determining the difference between the second moment and the first moment as the ejection reaction time, and determining the difference between the third moment and the second moment as the ejection movement time.

8. A computer program product, characterized in that include: A computer program, wherein when the computer program is executed by a processor, the ejection training assessment method according to claim 7 is implemented.

9. An electronic device, characterized in that: include: A memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the ejection training assessment method according to claim 7 through the computer program.

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