Aircraft defroster cart air blowing pressure regulation method and system

By monitoring the frost thickness and displacement velocity in real time, a multi-dimensional evaluation index is generated. Combined with environmental data, a dynamic adjustment model is constructed, which solves the problem of air pressure adjustment lag in the aircraft defrosting system, achieves precise air pressure control, improves defrosting efficiency, and reduces energy consumption and surface damage risk.

CN120397283BActive Publication Date: 2026-03-03DONGFANG AVIATION EQUIP MFG CORP SHANGHAI
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Patent Information

Application Number
CN202510451497.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-04-11
Publication Date
2026-03-03
Estimated Expiration
2045-04-11

AI Technical Summary

Technical Problem

Existing aircraft defrosting systems struggle to monitor dynamic changes in frost layers in real time, leading to delayed or inaccurate pressure adjustments that affect defrosting efficiency and aircraft surface safety.

Method used

By monitoring the frost layer thickness and displacement speed in real time, a multi-dimensional defrosting effect evaluation index is generated. Combined with environmental data, a dynamic adjustment model is constructed to precisely control the blowing air pressure.

Benefits of technology

It achieves precise control of blowing air pressure, improves defrosting efficiency, reduces energy consumption, and reduces the risk of damage to the aircraft surface.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a kind of aircraft defrosting vehicle blow gas pressure regulation method and system, belong to defrosting equipment regulation field, including obtaining the state data of aircraft defrosting area frost layer, generates defrosting effect evaluation index;According to defrosting effect evaluation index, whether the blow gas pressure of current aircraft defrosting vehicle is reasonable is judged;If the blow gas pressure of current aircraft defrosting vehicle is unreasonable, the environmental data and blow gas angle of aircraft defrosting area are obtained, blow gas pressure adjustment analysis model is established, blow gas pressure adjustment value is generated, and the blow gas pressure of defrosting vehicle is adjusted;The application generates multidimensional defrosting effect evaluation index by real-time monitoring frost layer thickness change speed and displacement speed, and constructs dynamic adjustment model in combination with environmental temperature, wind speed, blow gas angle, realizes the accurate regulation of blow gas pressure, not only can adapt to different environmental conditions, improve defrosting efficiency, reduce energy consumption, but also can reduce the risk of damage to aircraft surface when defrosting vehicle defrosting simultaneously.
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Description

Technical Field

[0001] This invention belongs to the field of defrosting equipment control technology, and particularly relates to a method and system for controlling the blowing air pressure of an aircraft defrosting vehicle. Background Technology

[0002] In cold climates, frost formation on aircraft surfaces significantly increases drag and affects aerodynamic performance, threatening flight safety. Traditional aircraft defrosting vehicles remove frost by impacting the frost layer with high-pressure airflow. The core of this method lies in efficiently removing the frost layer through proper control of the air pressure while avoiding damage to the aircraft surface. This process places high demands on the real-time and precise control of air pressure.

[0003] Currently, most mainstream defrosting methods are based on fixed air pressure modes or empirical manual adjustments. While some technologies incorporate single parameters such as ambient temperature and wind speed for fine-tuning of air pressure, they lack real-time monitoring of dynamic changes in the frost layer (such as the rate of thickness change and displacement). Existing systems struggle to quantify the correlation between the frost layer state and the blowing air pressure, leading to lags or deviations in air pressure adjustments and impacting defrosting efficiency. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a method and system for regulating the air pressure of air blowers used in aircraft defrosting vehicles, thus solving the aforementioned problems.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a method for regulating the air pressure of an aircraft defrosting vehicle, comprising the following steps:

[0006] Acquire the state data of the frost layer in the aircraft defrosting area and generate a defrosting effect evaluation index; the state data of the frost layer includes the rate of change of frost layer thickness and the rate of frost layer displacement.

[0007] Based on the defrosting effect evaluation index, determine whether the air pressure of the current aircraft defrosting vehicle is reasonable;

[0008] If the air pressure of the current aircraft defrosting vehicle is unreasonable, obtain the environmental data and air blowing angle of the aircraft defrosting area, establish an air pressure adjustment analysis model, and generate air pressure adjustment values; among them, the environmental data includes light intensity, temperature and wind speed;

[0009] Adjust the air pressure of the defrosting vehicle according to the air pressure adjustment value.

[0010] Based on the above technical solutions, the present invention also provides the following optional technical solutions:

[0011] A further technical solution: The step of acquiring the state data of the frost layer in the aircraft defrosting area and generating a defrosting effect evaluation index specifically includes the following steps:

[0012] Obtain the rate of change of frost layer thickness and generate a thickness change evaluation index;

[0013] Obtain the frost layer displacement velocity and generate a displacement velocity evaluation index;

[0014] Based on the thickness change evaluation index and the displacement velocity evaluation index, a defrosting effect evaluation index is generated.

[0015] A further technical solution: The specific method for generating the thickness variation evaluation index is as follows:

[0016] The rate of change of frost thickness is obtained, and a residual frost thickness value is generated based on the current frost thickness, the rate of change of frost thickness, and the remaining time for spraying the defrosting area. The residual frost thickness value is the difference between the current frost thickness and the product of the rate of change of frost thickness and the remaining time for spraying the defrosting area.

[0017] A thickness difference is generated based on the remaining frost thickness and the remaining thickness threshold; where the thickness difference refers to the difference between the remaining frost thickness and the remaining thickness threshold.

[0018] A thickness change evaluation index is generated based on the thickness difference; the thickness change evaluation index refers to the ratio between the thickness difference and the remaining thickness threshold.

[0019] A further technical solution: The specific method for generating the displacement velocity evaluation index is as follows:

[0020] Obtain the frost layer displacement velocity, and generate a displacement velocity difference based on the frost layer displacement velocity and a frost layer displacement velocity threshold; the displacement velocity difference refers to the difference between the frost layer displacement velocity and the frost layer displacement velocity threshold.

[0021] A displacement velocity evaluation index is generated based on the displacement velocity difference and the frost layer displacement velocity threshold; the displacement velocity evaluation index refers to the ratio between the displacement velocity difference and the frost layer displacement velocity threshold.

[0022] Further technical solution: The method for generating the defrosting effect evaluation index is as follows:

[0023] Through the formula:

[0024] R = H speed *α+V eva *β;

[0025] Generate a defrosting effect evaluation index R;

[0026] In the formula, H speed V represents the thickness variation evaluation index. eva This represents the displacement velocity evaluation index, where α and β are both weighting coefficients, and α+β=1.

[0027] Further technical solution: The method for generating the blowing air pressure adjustment value specifically includes the following steps:

[0028] If the air pressure of the current aircraft defrosting vehicle is unreasonable, obtain the ambient temperature, ambient wind speed and air blowing angle of the aircraft defrosting area; where the air blowing angle refers to the angle formed between the air blowing path and the surface of the aircraft defrosting area.

[0029] An environmental temperature evaluation index is generated based on the ambient temperature; the environmental temperature evaluation index refers to the ratio between the ambient temperature and the melting point temperature of the frost layer.

[0030] An environmental wind speed evaluation index is generated based on the ambient wind speed and the ambient wind speed threshold. The environmental wind speed evaluation index is the ratio between the ambient wind speed and the ambient wind speed threshold. The ambient wind speed threshold is the minimum ambient wind speed that can drive the frost layer.

[0031] Based on the blowing angle, a blowing angle evaluation index is generated; where the blowing angle evaluation index refers to the ratio between the blowing angle and the standard blowing angle.

[0032] An air pressure adjustment analysis model was established, and the ambient temperature evaluation index, ambient wind speed evaluation index, current air pressure, and defrosting effect evaluation index were substituted into the air pressure adjustment analysis model to generate air pressure adjustment values.

[0033] Further technical solution: The expression for the blowing air pressure adjustment analysis model is as follows:

[0034]

[0035] In the expression, ΔP represents the blowing pressure adjustment value, P now This represents the current blowing pressure, Q. T This represents the environmental temperature evaluation index, Q. S R represents the environmental wind speed evaluation index, θ represents the defrosting effect evaluation index, and a1 and a2 are both proportional coefficients, and a1+a2=1.

[0036] Further technical solution: The specific method for generating the environmental wind speed evaluation index is as follows:

[0037] Through the formula:

[0038] Environmental wind speed evaluation index Q S ;

[0039] In the formula, S now This represents the ambient wind speed, S0 represents the ambient wind speed threshold, ΔK represents the wind direction angle difference, and K... maxThis indicates the maximum angular difference in wind direction; the angular difference in wind direction refers to the angular difference between the wind direction angle and the blowing angle.

[0040] An air pressure control system for aircraft defrosting vehicles, the system comprising:

[0041] The defrosting effect analysis unit is used to acquire the state data of the frost layer in the aircraft defrosting area and generate a defrosting effect evaluation index; the state data of the frost layer includes the rate of change of frost layer thickness and the rate of frost layer displacement.

[0042] The defrosting effect judgment module is used to determine whether the air pressure of the current aircraft defrosting vehicle is reasonable based on the defrosting effect evaluation index.

[0043] If the air pressure of the current aircraft defrosting vehicle is unreasonable, the adjustment analysis unit is used to obtain environmental data and air blowing angle of the aircraft defrosting area, establish an air pressure adjustment analysis model, and generate air pressure adjustment values; wherein, the environmental data includes light intensity, temperature and wind speed.

[0044] The adjustment control module is used to adjust the air pressure of the defrosting vehicle according to the air pressure adjustment value.

[0045] Further technical solution: The defrosting effect analysis unit specifically includes:

[0046] The thickness change analysis module is used to obtain the rate of change of frost layer thickness and generate a thickness change evaluation index;

[0047] The displacement velocity analysis module is used to obtain the displacement velocity of the frost layer and generate a displacement velocity evaluation index.

[0048] The defrosting effect evaluation index generation module is used to generate a defrosting effect evaluation index based on the thickness change evaluation index and the displacement velocity evaluation index.

[0049] Specifically, the adjustment analysis unit includes:

[0050] The data acquisition module is used to acquire the ambient temperature, ambient wind speed and blowing angle of the aircraft defrosting area if the current air pressure of the aircraft defrosting vehicle is unreasonable; wherein, the blowing angle refers to the angle formed between the blowing path and the surface of the aircraft defrosting area.

[0051] The ambient temperature analysis module is used to generate an ambient temperature evaluation index based on the ambient temperature; the ambient temperature evaluation index refers to the ratio between the ambient temperature and the melting point temperature of the frost layer.

[0052] The environmental wind speed analysis module is used to generate an environmental wind speed evaluation index based on the environmental wind speed and the environmental wind speed threshold. The environmental wind speed evaluation index is the ratio between the environmental wind speed and the environmental wind speed threshold, which is the minimum environmental wind speed that can drive frost.

[0053] The blowing angle analysis module is used to generate a blowing angle evaluation index based on the blowing angle; the blowing angle evaluation index refers to the ratio between the blowing angle and the standard blowing angle.

[0054] The air pressure adjustment value generation module is used to establish an air pressure adjustment analysis model. It inputs the ambient temperature evaluation index, ambient wind speed evaluation index, current air pressure, and defrosting effect evaluation index into the air pressure adjustment analysis model to generate the air pressure adjustment value.

[0055] This invention provides a method and system for regulating the air pressure of air blowing vehicles used for aircraft defrosting, which has the following advantages compared with the prior art:

[0056] This invention generates a multi-dimensional defrosting effect evaluation index by real-time monitoring of the rate of change and displacement of frost layer thickness, and constructs a dynamic adjustment model by combining data on ambient temperature, wind speed, and blowing angle, thereby achieving precise control of blowing air pressure. This invention can not only adapt to different environmental conditions, significantly improve defrosting efficiency, and reduce energy consumption, but also reduce the risk of damage to the aircraft surface caused by the defrosting vehicle during defrosting. Attached Figure Description

[0057] Figure 1 This is a flowchart illustrating a method for regulating the air pressure of an aircraft defrosting vehicle, as provided in an embodiment of the present invention.

[0058] Figure 2 This is a schematic diagram of the structure of an air pressure control system for aircraft defrosting vehicles, provided as an embodiment of the present invention. Detailed Implementation

[0059] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0060] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0061] like Figure 1 As shown, an embodiment of the present invention provides a method for regulating the air pressure of an aircraft defrosting vehicle, comprising the following steps:

[0062] Step S10: Obtain the state data of the frost layer in the aircraft defrosting area and generate a defrosting effect evaluation index; wherein, the state data of the frost layer includes the rate of change of frost layer thickness and the rate of frost layer displacement;

[0063] Step S20: Based on the defrosting effect evaluation index, determine whether the air pressure of the current aircraft defrosting vehicle is reasonable;

[0064] Step S30: If the air pressure of the current aircraft defrosting vehicle is unreasonable, obtain the environmental data and air blowing angle of the aircraft defrosting area, establish an air pressure adjustment analysis model, and generate air pressure adjustment values; among which, the environmental data includes light intensity, temperature and wind speed.

[0065] Step S40: Adjust the air pressure of the defrosting vehicle according to the air pressure adjustment value.

[0066] In a preferred embodiment of the present invention, step S10 specifically includes the following steps:

[0067] S11: Obtain the rate of change of frost layer thickness and generate a thickness change evaluation index;

[0068] S12: Obtain the frost layer displacement velocity and generate a displacement velocity evaluation index;

[0069] S13: Generate a defrosting effect evaluation index based on the thickness change evaluation index and the displacement velocity evaluation index.

[0070] In a preferred embodiment of the present invention, the thickness variation evaluation index is generated in the following manner:

[0071] The rate of change of frost thickness is obtained, and a residual frost thickness value is generated based on the current frost thickness, the rate of change of frost thickness, and the remaining time for spraying the defrosting area. The residual frost thickness value is the difference between the current frost thickness and the product of the rate of change of frost thickness and the remaining time for spraying the defrosting area.

[0072] A thickness difference is generated based on the remaining frost thickness and the remaining thickness threshold; where the thickness difference refers to the difference between the remaining frost thickness and the remaining thickness threshold.

[0073] Based on the thickness difference, a thickness change evaluation index is generated; whereby the thickness change evaluation index refers to the ratio between the thickness difference and the remaining thickness threshold.

[0074] It should be noted that the remaining thickness threshold is a preset value, and its value is set by those skilled in the art.

[0075] In addition, the remaining time for defrosting zone spraying refers to the time required for the defrosting truck's air blowing point to move out of the edge of the defrosting zone on the aircraft surface; furthermore, the defrosting truck's air blowing point data is real-time data.

[0076] In this embodiment, the final effect of the defrosting truck on the frost thickness is predicted by the rate of change of the frost thickness. If there is still frost thickness remaining, the defrosting truck can completely remove the frost in the defrosting area of ​​the aircraft surface by changing the air pressure of the nozzle while keeping the moving speed of the defrosting truck nozzle constant. Conversely, if the remaining value of the frost thickness is negative, it means that even if the moving speed of the defrosting truck nozzle is kept constant, the air pressure of the nozzle can completely remove the frost in the defrosting area of ​​the aircraft surface with a surplus, resulting in energy waste and possibly damage to the aircraft surface.

[0077] For example, through the formula:

[0078]

[0079] Generate thickness variation evaluation index H speed ;

[0080] In the formula, H now V represents the current thickness of the frost layer. h T represents the rate of change of frost thickness. rem H represents the remaining time for defrosting the area, and H0 represents the remaining thickness threshold.

[0081] In a preferred embodiment of the present invention, the displacement velocity evaluation index is generated in the following manner:

[0082] Obtain the frost layer displacement velocity, and generate a displacement velocity difference based on the frost layer displacement velocity and a frost layer displacement velocity threshold; the displacement velocity difference refers to the difference between the frost layer displacement velocity and the frost layer displacement velocity threshold.

[0083] It should be explained that the frost displacement velocity threshold refers to the maximum displacement velocity of the frost layer without causing damage to the aircraft surface.

[0084] A displacement velocity evaluation index is generated based on the displacement velocity difference and the frost layer displacement velocity threshold; the displacement velocity evaluation index refers to the ratio between the displacement velocity difference and the frost layer displacement velocity threshold.

[0085] In a preferred embodiment of the present invention, the defrosting effect evaluation index is generated in the following manner:

[0086] Through the formula:

[0087] R = H speed *α+V eva *β;

[0088] Generate a defrosting effect evaluation index R;

[0089] In the formula, Hspeed V represents the thickness variation evaluation index. eva This represents the displacement velocity evaluation index, where α and β are both weighting coefficients, and α+β=1;

[0090] It should be noted that the values ​​of α and β are set by those skilled in the art; the methods for determining these values ​​include the analytic hierarchy process, experimental calibration, and expert consultation, all of which are existing technologies and will not be elaborated upon here.

[0091] In a preferred embodiment of the present invention, the method for determining whether the air pressure of the current aircraft defrosting vehicle is reasonable is as follows:

[0092] Compare the defrosting effect evaluation index with the defrosting effect evaluation index threshold;

[0093] It should be noted that the defrosting effect evaluation index threshold is a set value, and its value is set by relevant personnel in this field.

[0094] When the defrosting effect evaluation index is less than or equal to the defrosting effect evaluation index threshold, the air pressure of the current aircraft defrosting vehicle is determined to be reasonable; the smaller the defrosting effect evaluation index, the more reasonable the air pressure of the current aircraft defrosting vehicle.

[0095] When the defrosting effect evaluation index is greater than the defrosting effect evaluation index threshold, the air pressure of the current aircraft defrosting vehicle is determined to be unreasonable; the higher the defrosting effect evaluation index, the more unreasonable the air pressure of the current aircraft defrosting vehicle is.

[0096] If the air pressure of the current aircraft defrosting vehicle is reasonable, only routine maintenance by relevant personnel is required, and no adjustment of the air pressure is necessary.

[0097] If the air pressure of the aircraft defrosting vehicle is not reasonable, it needs to be adjusted to prevent the defrosting efficiency from being reduced due to insufficient air pressure, or the energy from being wasted due to excessive air pressure. In addition, if the air pressure of the aircraft defrosting vehicle is too high to a certain extent, it may damage the aircraft surface and cause irreparable losses.

[0098] In a preferred embodiment of the present invention, step S30 specifically includes the following steps:

[0099] S31: If the air pressure of the current aircraft defrosting vehicle is unreasonable, obtain the ambient temperature, ambient wind speed and air blowing angle of the aircraft defrosting area; where the air blowing angle refers to the angle formed between the air blowing path and the surface of the aircraft defrosting area.

[0100] S32: Generate an ambient temperature evaluation index based on the ambient temperature; where the ambient temperature evaluation index refers to the ratio between the ambient temperature and the melting point temperature of the frost layer.

[0101] It should be noted that the melting point temperature of frost is the lowest temperature required for the frost to change from a solid to a liquid state.

[0102] When an aircraft is flying at high altitude, frost may form due to the low temperature at high altitude. After the aircraft lands, if the ambient temperature is higher than the melting point of the frost, the frost can melt on its own by absorbing heat from the environment within a period of time. If the ambient temperature is too high, it may not be necessary to use a defrosting vehicle. However, defrosting vehicles are generally used in low-temperature environments. In this embodiment, we consider other effects of ambient temperature on the frost, such as the hardness of the frost.

[0103] S33: Generate an environmental wind speed evaluation index based on the ambient wind speed and the ambient wind speed threshold; the environmental wind speed evaluation index refers to the ratio between the ambient wind speed and the ambient wind speed threshold.

[0104] It should be explained that the ambient wind speed threshold refers to the minimum ambient wind speed that can drive the frost layer.

[0105] S34: Generate a blowing angle evaluation index based on the blowing angle; where the blowing angle evaluation index refers to the ratio between the blowing angle and the standard blowing angle.

[0106] S34: Establish a blowing pressure adjustment analysis model, and substitute the ambient temperature evaluation index, ambient wind speed evaluation index, current blowing pressure and defrosting effect evaluation index into the blowing pressure adjustment analysis model to generate the blowing pressure adjustment value.

[0107] The expression for the blowing pressure adjustment analysis model is as follows:

[0108]

[0109] In the expression, ΔP represents the blowing pressure adjustment value, P now This represents the current blowing pressure, Q. T This represents the environmental temperature evaluation index, Q. S R represents the environmental wind speed evaluation index, θ represents the defrosting effect evaluation index, and a1 and a2 are both proportional coefficients, and a1+a2=1.

[0110] It should be noted that the values ​​of a1 and a2 are set by relevant personnel in this field; the methods for determining these values ​​include, but are not limited to, expert consultation.

[0111] In a preferred embodiment of the present invention, the environmental wind speed evaluation index is generated in the following manner:

[0112] Through the formula:

[0113] Environmental wind speed evaluation index Q S ;

[0114] In the formula, S now This represents the ambient wind speed, S0 represents the ambient wind speed threshold, ΔK represents the wind direction angle difference, and K... max This indicates the maximum angular difference in wind direction; the angular difference in wind direction refers to the angular difference between the wind direction angle and the blowing angle.

[0115] It should be explained that the maximum wind direction angle difference refers to the angle difference between the wind direction angle and the blowing angle when the aircraft defrosting vehicle removes the frost layer. For example, if the angle difference between the wind direction angle and the blowing angle exceeds 90°, the thrust generated by the blowing air pressure and the thrust generated by the ambient air flow (i.e., ambient wind speed) will cancel each other out, and this thrust will act on the frost layer.

[0116] like Figure 2 As shown, the present invention also provides an air pressure regulation system for aircraft defrosting vehicles, the system comprising:

[0117] The defrosting effect analysis unit is used to acquire the state data of the frost layer in the aircraft defrosting area and generate a defrosting effect evaluation index; the state data of the frost layer includes the rate of change of frost layer thickness and the rate of frost layer displacement.

[0118] The defrosting effect judgment module is used to determine whether the air pressure of the current aircraft defrosting vehicle is reasonable based on the defrosting effect evaluation index.

[0119] If the air pressure of the current aircraft defrosting vehicle is unreasonable, the adjustment analysis unit is used to obtain environmental data and air blowing angle of the aircraft defrosting area, establish an air pressure adjustment analysis model, and generate air pressure adjustment values; wherein, the environmental data includes light intensity, temperature and wind speed.

[0120] The adjustment control module is used to adjust the air pressure of the defrosting vehicle according to the air pressure adjustment value.

[0121] The defrosting effect analysis unit specifically includes:

[0122] The thickness change analysis module is used to obtain the rate of change of frost layer thickness and generate a thickness change evaluation index;

[0123] The displacement velocity analysis module is used to obtain the displacement velocity of the frost layer and generate a displacement velocity evaluation index.

[0124] The defrosting effect evaluation index generation module is used to generate a defrosting effect evaluation index based on the thickness change evaluation index and the displacement velocity evaluation index.

[0125] Specifically, the adjustment analysis unit includes:

[0126] The data acquisition module is used to acquire the ambient temperature, ambient wind speed and blowing angle of the aircraft defrosting area if the current air pressure of the aircraft defrosting vehicle is unreasonable; wherein, the blowing angle refers to the angle formed between the blowing path and the surface of the aircraft defrosting area.

[0127] The ambient temperature analysis module is used to generate an ambient temperature evaluation index based on the ambient temperature; the ambient temperature evaluation index refers to the ratio between the ambient temperature and the melting point temperature of the frost layer.

[0128] The environmental wind speed analysis module is used to generate an environmental wind speed evaluation index based on the environmental wind speed and the environmental wind speed threshold. The environmental wind speed evaluation index is the ratio between the environmental wind speed and the environmental wind speed threshold, which is the minimum environmental wind speed that can drive frost.

[0129] The blowing angle analysis module is used to generate a blowing angle evaluation index based on the blowing angle; the blowing angle evaluation index refers to the ratio between the blowing angle and the standard blowing angle.

[0130] The air pressure adjustment value generation module is used to establish an air pressure adjustment analysis model. It inputs the ambient temperature evaluation index, ambient wind speed evaluation index, current air pressure, and defrosting effect evaluation index into the air pressure adjustment analysis model to generate the air pressure adjustment value.

[0131] This invention generates a multi-dimensional defrosting effect evaluation index by real-time monitoring of the rate of change and displacement of frost layer thickness, and constructs a dynamic adjustment model by combining data on ambient temperature, wind speed, and blowing angle, thereby achieving precise control of blowing air pressure. This invention can not only adapt to different environmental conditions, significantly improve defrosting efficiency, and reduce energy consumption, but also reduce the risk of damage to the aircraft surface caused by the defrosting vehicle during defrosting.

[0132] It should be understood that the terms “comprising” and “including” used in this disclosure and claims indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0133] It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the disclosure. As used in this disclosure and claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used in this disclosure and claims means any combination and all possible combinations of one or more of the associated listed items, and includes such combinations;

[0134] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A method for regulating the air pressure of a defroster vehicle of an aircraft, characterized in that, The method comprises the following steps: acquiring state data of frost layer of an aircraft deicing area to generate a deicing effect evaluation index; wherein the state data of the frost layer comprises a frost layer thickness change speed and a frost layer displacement speed; judging whether the blowing air pressure of the current aircraft deicing vehicle is reasonable according to the deicing effect evaluation index; if the blowing air pressure of the current aircraft deicing vehicle is unreasonable, acquiring environmental data and blowing air angle of the aircraft deicing area, establishing a blowing air pressure adjustment analysis model, and generating a blowing air pressure adjustment value; wherein the environmental data comprises illumination intensity, temperature, and wind speed; adjusting the blowing air pressure of the deicing vehicle according to the blowing air pressure adjustment value; the generation mode of the blowing air pressure adjustment value specifically comprises the following steps: if the blowing air pressure of the current aircraft deicing vehicle is unreasonable, acquiring environmental temperature, environmental wind speed, and blowing air angle of the aircraft deicing area; wherein the blowing air angle refers to an included angle formed by a blowing air path and a surface of the aircraft deicing area; generating an environmental temperature evaluation index according to the environmental temperature; wherein the environmental temperature evaluation index refers to a ratio between the environmental temperature and a frost layer melting point temperature; generating an environmental wind speed evaluation index according to the environmental wind speed and an environmental wind speed threshold value; the environmental wind speed evaluation index refers to a ratio between the environmental wind speed and the environmental wind speed threshold value, and the environmental wind speed threshold value refers to a minimum environmental wind speed capable of pushing the frost layer; generating a blowing air angle evaluation index according to the blowing air angle; wherein the blowing air angle evaluation index refers to a ratio between the blowing air angle and a standard blowing air angle; establishing a blowing air pressure adjustment analysis model, substituting the environmental temperature evaluation index, the environmental wind speed evaluation index, the current blowing air pressure, and the deicing effect evaluation index into the blowing air pressure adjustment analysis model, and generating a blowing air pressure adjustment value; the expression of the blowing air pressure adjustment analysis model is: In the expression, ΔP represents a blowing pressure adjustment value, P now represents a current blowing pressure, Q T represents an ambient temperature evaluation index, Q S represents an ambient wind speed evaluation index, R represents a defrosting effect evaluation index, θ represents a blowing angle evaluation index, and a1 and a2 are proportional coefficients, and a1+a2=1.

2. The method of claim 1, wherein the method further comprises: the acquisition of the state data of the frost layer of the aircraft deicing area and the generation of the deicing effect evaluation index specifically comprise the following steps: acquiring the frost layer thickness change speed to generate a thickness change evaluation index; acquiring the frost layer displacement speed to generate a displacement speed evaluation index; generating the deicing effect evaluation index according to the thickness change evaluation index and the displacement speed evaluation index.

3. The method of claim 2, wherein the method further comprises: the generation mode of the thickness change evaluation index is specifically as follows: acquiring the frost layer thickness change speed, generating a frost layer thickness remaining value according to the current frost layer thickness, the frost layer thickness change speed, and the remaining spraying time of the deicing area; the frost layer thickness remaining value refers to a difference between the product of the current frost layer thickness, the frost layer thickness change speed, and the remaining spraying time of the deicing area; generating a thickness difference value according to the frost layer thickness remaining value and a thickness remaining threshold value; wherein the thickness difference value refers to a difference between the frost layer thickness remaining value and the thickness remaining threshold value; generating the thickness change evaluation index according to the thickness difference value; wherein the thickness change evaluation index refers to a ratio between the thickness difference value and the thickness remaining threshold value.

4. The method of claim 2, wherein the method further comprises: the generation mode of the displacement speed evaluation index is specifically as follows: acquiring the frost layer displacement speed, generating a displacement speed difference value according to the frost layer displacement speed and a frost layer displacement speed threshold value; the displacement speed difference value refers to a difference between the frost layer displacement speed and the frost layer displacement speed threshold value; According to the displacement speed difference value and the frost layer displacement speed threshold value, a displacement speed evaluation index is generated; the displacement speed evaluation index refers to a ratio between the displacement speed difference value and the frost layer displacement speed threshold value.

5. The method of claim 2, wherein the method further comprises: The generation mode of the defrosting effect evaluation index is specifically as follows: A defrosting effect evaluation index R is generated through a formula: R = H speed * α + V eva * β; The generation mode of the environmental wind speed evaluation index is specifically as follows: In the formula, H speed represents a thickness variation evaluation index, V eva represents a displacement velocity evaluation index, and α and β are weight coefficients, and α + β = 1.

6. The method of claim 1, wherein the method further comprises: The control system comprises: By the formula: Generation environment wind speed evaluation index Q S ; In the formula, S now represents the ambient wind speed, S0 represents the ambient wind speed threshold, ΔK represents the wind direction angle difference, K max represents the maximum wind direction angle difference; the wind direction angle difference refers to the angle difference between the wind direction angle and the blowing angle.

7. A system for regulating the air pressure of a defroster vehicle of an aircraft, characterized in that, A defrosting effect analysis unit is configured to acquire state data of a frost layer in a defrosting area of an aircraft, and generate a defrosting effect evaluation index; wherein the state data of the frost layer comprises a frost layer thickness change speed and a frost layer displacement speed. A defrosting effect judgment module is configured to judge whether the blowing air pressure of the current aircraft defroster is reasonable according to the defrosting effect evaluation index. An adjustment analysis unit is configured to acquire environmental data and a blowing air angle of the defrosting area of the aircraft, establish a blowing air pressure adjustment analysis model, and generate a blowing air pressure adjustment value, if the blowing air pressure of the current aircraft defroster is unreasonable; wherein the environmental data comprises an illumination intensity, a temperature and a wind speed. An adjustment control module is configured to adjust the blowing air pressure of the defroster according to the blowing air pressure adjustment value. The defrosting effect analysis unit specifically comprises:

8. The air pressure regulating system for a de-icing vehicle of an aircraft according to claim 7, wherein A thickness change analysis module is configured to acquire the frost layer thickness change speed, and generate a thickness change evaluation index. A displacement speed analysis module is configured to acquire the frost layer displacement speed, and generate a displacement speed evaluation index. A defrosting effect evaluation index generation module is configured to generate the defrosting effect evaluation index according to the thickness change evaluation index and the displacement speed evaluation index. The adjustment analysis unit specifically comprises: A data acquisition module is configured to acquire an environmental temperature, an environmental wind speed and a blowing air angle of the defrosting area of the aircraft, if the blowing air pressure of the current aircraft defroster is unreasonable; wherein the blowing air angle refers to an included angle between a blowing air path and a surface of the defrosting area of the aircraft. An environmental temperature analysis module is configured to generate an environmental temperature evaluation index according to the environmental temperature; wherein the environmental temperature evaluation index refers to a ratio between the environmental temperature and a frost layer melting point temperature. An environmental wind speed analysis module is configured to generate an environmental wind speed evaluation index according to the environmental wind speed and an environmental wind speed threshold value; the environmental wind speed evaluation index refers to a ratio between the environmental wind speed and the environmental wind speed threshold value, and the environmental wind speed threshold value refers to a minimum environmental wind speed capable of pushing the frost layer. A blowing air angle analysis module is configured to generate a blowing air angle evaluation index according to the blowing air angle; wherein the blowing air angle evaluation index refers to a ratio between the blowing air angle and a standard blowing air angle. A blowing air pressure adjustment value generation module is configured to establish the blowing air pressure adjustment analysis model, and substitute the environmental temperature evaluation index, the environmental wind speed evaluation index, the current blowing air pressure and the defrosting effect evaluation index into the blowing air pressure adjustment analysis model, to generate the blowing air pressure adjustment value. ​

Citation Information

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