CN-122022599-A - Flight simulator cockpit air conditioner evaluation method, system and equipment based on sound QTG

CN122022599ACN 122022599 ACN122022599 ACN 122022599ACN-122022599-A

Abstract

The invention belongs to the technical field of flight simulators, relates to a flight simulator cockpit air conditioner evaluation method, system and equipment based on sound QTG, and aims to solve the problems of lack of quantitative evaluation means and evaluation of influence of the flight simulator on the acoustic environment of a cockpit without comprehensive consideration. The method comprises the steps of obtaining sound QTG test data in a cockpit of a flight simulator before and after an air conditioning system is started, calculating relative deviation and score of a single frequency band, obtaining single sound QTG score and sound QTG overall score, determining influence indexes of the air conditioning system on sound QTG test results according to total score variation before and after the air conditioning system is started, obtaining utility related parameters and energy consumption related parameters of the air conditioning system, calculating utility indexes and energy consumption indexes, and calculating comprehensive indexes of the air conditioning system based on the influence indexes, the utility indexes and the energy consumption indexes. According to the invention, the comprehensive quantitative evaluation of the acoustic influence, the use efficiency and the energy consumption level of the air conditioning system is carried out, so that the scientificity and the comprehensiveness of the evaluation of the flight simulator cockpit air conditioning system are improved.

Inventors

YUAN DAMENG
YUAN JIAHE
Guo Aoletai
ZHENG WANCHENG
LIU LEI
CHEN CONG
CAO JIE
HUANG CHAOXIN
Shi Toukun
LI JINGCHUN

Assignees

珠海翔翼航空技术有限公司

Dates

Publication Date: 20260512
Application Date: 20260414

Claims (10)

1. A flight simulator cockpit air conditioner evaluation method based on sound QTG is characterized by comprising the following steps: acquiring sound QTG test data in a cockpit of a flight simulator before and after the air conditioning system is started; Calculating the relative deviation of the single frequency band based on the sound QTG test data, wherein the relative deviation is the ratio of the absolute value of the difference between the measured value and the standard value to the tolerance; Calculating the score of the single frequency band through a preset scoring rule based on the relative deviation of the single frequency band, wherein the scoring rule limits the score to be in a preset range according to the comparison result of the relative deviation and a threshold value; calculating a single sound QTG score based on the score of the single frequency band and the corresponding weight coefficient; calculating a sound QTG overall score based on all individual sound QTG scores and corresponding item weight coefficients; Determining an influence index of the air conditioning system on a sound QTG test result based on the change amount of the overall score of the sound QTG before and after the air conditioning system is started, wherein different calculation rules are adopted for the influence index according to the positive and negative of the change amount; acquiring utility related parameters and energy consumption related parameters of an air conditioning system, and respectively calculating utility indexes and energy consumption indexes based on the utility related parameters and the energy consumption related parameters; and calculating the comprehensive index of the air conditioning system based on the influence index, the utility index, the energy consumption index and the corresponding weighting coefficients.
2. The method of claim 1, wherein calculating a score for a single frequency band comprises: When the relative deviation of the single frequency band is zero, scoring the single frequency band as a first preset value; When the relative deviation is between zero and a first threshold value, calculating a score according to a logarithmic function of the relative deviation, wherein the score does not exceed the first preset value; When the relative deviation is greater than the first threshold, the score is calculated according to a logarithmic function of the relative deviation, and the score is not lower than a second preset value.
3. The method of claim 1, wherein the single sound QTG score is the sum of the products of all band scores under a sound QTG test item and their corresponding band weight coefficients, the method further comprising: Calculating the qualified frequency band score, the unqualified frequency band score and the qualification rate of the same test item; the qualified frequency band score is the sum of products of all non-negative frequency band scores under the test item and corresponding frequency band weight coefficients; the unqualified frequency band scores are the sum of products of all negative frequency band scores under the test item and the corresponding frequency band weight coefficients; and the qualification rate is the sum of weight coefficients corresponding to frequency bands with the relative deviation not greater than a first threshold under the test item.
4. The method of claim 3, wherein the overall sound QTG score is the sum of the products of the individual sound QTG scores of all sound QTG test items and the respective corresponding item weight coefficients, wherein the method further comprises calculating the overall sound QTG score based on the pass band score of each test item and the corresponding item weight coefficient, calculating the overall sound QTG reject score based on the reject band score of each test item and the corresponding item weight coefficient, and calculating the overall sound QTG pass rate based on the pass rate of each test item and the corresponding item weight coefficient.
5. The method of claim 1, wherein determining an impact indicator of the air conditioning system on the sound QTG test results comprises: when the variation is positive, the influence index is the sum of the reference value plus the product of the improvement rewarding coefficient and the variation, and the upper limit value is not exceeded; when the change amount is a non-positive value, the influence index is a coefficient of multiplying a reference value by a sum of a ratio of the change amount divided by a score before opening.
6. The method of claim 1, wherein the utility index is calculated based on an adjustment speed utility index and a stability utility index and their corresponding weighting coefficients; The utility index of the adjusting speed is determined based on the time required for the temperature to be adjusted to a set value; The stability utility index is determined based on the degree to which the temperature deviates from the set point within the set time period and its corresponding penalty coefficient.
7. The method of claim 6, wherein the calculating of the stability utility index comprises: When the temperature deviation exceeds a preset range, the stability utility index is zero; Otherwise, the stability utility index is the sum of products of the ratio of the sampling times in each temperature deviation range to the total sampling times and the corresponding penalty coefficients.
8. The method of claim 1, wherein the energy consumption indicator is determined based on an operating power of an air conditioning system; when the running power is smaller than or equal to the first power threshold, the energy consumption index is a first value; when the operating power is greater than the first power threshold and less than or equal to the second power threshold, the energy consumption index decreases linearly with increasing operating power; When the operating power is greater than the second power threshold, the energy consumption index is zero.
9. A flight simulator cockpit air conditioner evaluation system based on sound QTG for performing a flight simulator cockpit air conditioner evaluation method based on sound QTG according to any one of claims 1 to 8, the system comprising: The data acquisition module is used for acquiring sound QTG test data in the flight simulator cockpit before and after the air conditioning system is started; The relative deviation calculation module is used for calculating the relative deviation of the single frequency band based on the sound QTG test data, wherein the relative deviation is the ratio of the absolute value of the difference between the measured value and the standard value to the tolerance; The frequency band scoring module is used for calculating the score of the single frequency band through a preset scoring rule based on the relative deviation of the single frequency band, and the scoring rule is used for limiting the score in a preset range according to the comparison result of the relative deviation and a threshold value; the single scoring module is used for calculating the score of the single sound QTG based on the score of the single frequency band and the corresponding weight coefficient; the overall scoring module is used for calculating overall scores of the sounds QTG based on all the single sound QTG scores and the corresponding item weight coefficients; the influence index determining module is used for determining an influence index of the air conditioning system on the sound QTG test result based on the change amount of the overall score of the sound QTG before and after the air conditioning system is started, and different calculation rules are adopted by the influence index according to the positive and negative of the change amount; The utility energy consumption calculation module is used for acquiring utility related parameters and energy consumption related parameters of the air conditioning system and respectively calculating utility indexes and energy consumption indexes based on the utility related parameters and the energy consumption related parameters; And the comprehensive index calculation module is used for calculating the comprehensive index of the air conditioning system based on the influence index, the utility index, the energy consumption index and the corresponding weighting coefficient.
10. An apparatus, comprising: At least one processor; and a memory communicatively coupled to at least one of the processors; Wherein the memory stores instructions executable by the processor for execution by the processor to implement a sound QTG-based flight simulator cockpit air conditioning evaluation method of any of claims 1-8.

Description

Flight simulator cockpit air conditioner evaluation method, system and equipment based on sound QTG Technical Field The invention belongs to the technical field of flight simulators, and particularly relates to a flight simulator cockpit air conditioner evaluation method, system and equipment based on sound QTG. Background The flight simulator is high-tech simulation equipment for pilot training, and whether each performance index of the flight simulator can simulate a real aircraft realistically is a key whether the flight simulator can run in a qualified mode. The sound system is an important component of the flight simulator, and needs to strictly meet the standards related to sound qualification test (Sound QTG) in relevant civil aviation regulations (such as CCAR-60). Sound QTG testing generally determines whether a sound system meets a qualification requirement by collecting sound data in a cockpit under a specific scene and comparing measured values of each frequency band under each test item with standard values to determine whether the sound is within a specified tolerance range. In the prior art, the evaluation of the test result of sound QTG mostly stays on the binary judgment level of "pass" and "fail", that is, only whether the out-of-tolerance frequency band exists is judged, or only the number of the out-of-tolerance frequency bands is counted. Although the evaluation mode can meet the basic qualification judgment requirement, the deviation degree between the sound test result and the standard value is difficult to reflect, and the different states such as ' qualification close to the standard ' and ' fine qualification far away from the standard boundary ', slight out-of-tolerance ' and ' serious out-of-tolerance ' are difficult to distinguish, so that the fine description of the sound QTG test result cannot be realized. Further, in the daily operation, maintenance and upgrading processes of the flight simulator, an operation unit often needs to know whether the test result of the sound QTG passes or not, and also needs to master the variation trend, the weak link and the problem severity of the performance of the sound system, so as to provide basis for debugging optimization, preventive maintenance and component replacement. However, the existing evaluation mode of sound QTG lacks an evaluation mechanism for converting test deviation of each frequency band into a comparable, accumulative and traceable quantization result, and cannot form a continuous scoring system of frequency band level, project level and overall level, so that the requirements of fine operation and maintenance management and long-term performance tracking analysis are difficult to meet. In addition, the flight simulator cockpit air conditioning system provides a comfortable training environment for a crew, and noise generated by operation of the flight simulator cockpit air conditioning system is also an important factor affecting the acoustic environment of the cockpit. The addition, replacement or performance decay of the air conditioning system may change the background noise characteristics in the cockpit, thereby affecting the sound QTG test results. The existing evaluation of air conditioning systems is usually focused on aspects of refrigeration/heating effectiveness, running energy consumption and the like, and the influence of the evaluation on the sound QTG test results is less considered. Particularly, in the case where the existing sound QTG evaluation is still mainly determined as binary, it is more difficult to further quantify the improvement or degradation degree of the sound environment before and after the air conditioning system is turned on. Therefore, the prior art has at least the following problems that firstly, an evaluation thought and an implementation method capable of improving the sound QTG test result from 'pass/fail' binary judgment to continuous quantitative evaluation are lacked, the coincidence degree, the change trend and the problem distribution of a sound system are difficult to accurately represent, and secondly, a technical scheme capable of comprehensively evaluating the influence of an air conditioning system on the result of the cockpit sound QTG and the self utility and the energy consumption level of the air conditioning system is lacked. Based on the above, it is needed to provide a flight simulator cockpit air conditioner evaluation method, system and device based on sound QTG quantitative evaluation, so as to improve the scientificity, fineness and practicability of the evaluation result. Disclosure of Invention In order to solve the problems in the prior art, namely that the existing sound QTG evaluation mode can only perform binary judgment of qualification or not, lacks quantitative evaluation means, and the existing air conditioning system evaluation does not comprehensively consider the technical problem of influence on the acoustic environment of the cockpit, the inve