CN109375641B

CN109375641B - Intelligent conversion method for flight overload

Info

Publication number: CN109375641B
Application number: CN201811059653.1A
Authority: CN
Inventors: 王刚化; 刘亮; 曾俊
Original assignee: GUIZHOU AVIATION AIRCRAFT DESIGN INSTITUTE
Current assignee: GUIZHOU AVIATION AIRCRAFT DESIGN INSTITUTE
Priority date: 2018-09-12
Filing date: 2018-09-12
Publication date: 2022-05-03
Anticipated expiration: 2038-09-12
Also published as: CN109375641A

Abstract

The invention discloses an intelligent conversion method for flight overload, which is characterized by comprising the steps of (1) extracting flight state parameters, (2) preprocessing data, (3) combining the data, (4) starting an algorithm and (5) displaying the converted data. By adopting the intelligent conversion method for the flying overload, 6 parameters including the corresponding overload value, the aircraft structure weight value, the fuel oil position, the load weight value and the load position can be obtained through the flying state parameters, the converted overload value can be provided intelligently by the conversion data display system after data preprocessing and data combination, personnel do not need to carry out work of converting the overload value, the overload value of the real load can be reflected in real time, the intelligent level of the aircraft is greatly improved, the requirement of the utilization rate of the aircraft is met, the intelligent level of the flying system is improved, the time is saved, and the use efficiency of the aircraft is improved.

Description

Intelligent conversion method for flight overload

Technical Field

The invention belongs to the technical field of aviation load analysis, and particularly relates to an intelligent conversion method for flight overload.

Background

The overload value of the airplane is the ratio of the external load on the airplane to the weight of the airplane, the overload value directly reflects the load acting on the airplane in the flying process of the airplane, and the overload value exceeds the allowable overload value range and needs to be checked. However, at present, the overload value is obtained by flight measurement equipment under fixed weight, and the overload value has the problem of inaccuracy. In the flying process of the airplane, as the oil quantity, the weight of equipment materials and the like all change at any moment along with time, namely the weight of the airplane also changes at any moment, the overload value obtained by the measuring equipment under the fixed weight cannot reflect the real loading of the airplane and needs to be converted. The current method is to record the flight overload value through a flight measuring device recorder, to derive the data through a ground storage device by workers after the aircraft lands, to analyze the flight state parameters by a program, to select different overload value conversion algorithms according to different flight state parameters, and to provide the result to the workers as the criterion for developing the inspection work.

Disclosure of Invention

The invention aims to solve the technical problem in the background art and provides an intelligent conversion method to solve the problem.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the intelligent conversion method for the flight overload comprises the steps of (1) extracting flight state parameters, (2) preprocessing data, (3) combining the data, (4) starting an algorithm and (5) displaying the converted data, and specifically comprises the following steps:

(1) extracting flight state parameters: extracting and storing parameters required by conversion through a program;

(2) data preprocessing: filtering, compressing and removing sharp points of the extracted overload value data recorded by the flight parameter device through a program, and setting a threshold value;

(3) data combination: combining the extracted data together in the same time sequence;

(4) the starting algorithm is as follows: judging whether the input parameters of the algorithm are consistent with the data combination by a program according to the data combination, if not, returning to judge again, and if so, converting according to the algorithm;

(5) and (3) conversion data display: displaying the maximum value in the time sequence through display equipment according to the converted overload value, wherein the overload value is a recorded numerical value which is larger than the threshold value and is used as overload value data; the staff obtains the converted overload value and compares the converted overload value with the allowable overload value of the airplane to determine whether to carry out the inspection work; if the converted overload value is less than or equal to the overload value allowed by the airplane, the airplane can continuously fly without carrying out any ground inspection work; if the converted overload value exceeds the allowable overload value of the airplane, the inspection is required to be carried out.

Further, the flight overload intelligent conversion method provided by the invention is characterized in that the flight state parameters comprise 6 parameters of an overload value, an airplane structure weight value, a fuel oil weight value and a fuel oil position, a load weight value and a load position recorded by the flight parameter equipment.

Further, the intelligent conversion method for the flight overload is characterized in that the threshold value is 0.4 lower than the overload value allowed by the airplane.

Furthermore, the intelligent conversion method for the flight overload is characterized in that the time sequence starts when the aircraft landing gear monitoring system sends a retraction signal of 0 and ends when the landing gear monitoring system sends a retraction signal of 0.

Compared with the prior art, the intelligent conversion method for the flight overload has the beneficial effects that: the invention provides an intelligent conversion method for flying overload, which can obtain 6 parameters of corresponding overload value, airplane structure weight value, fuel oil position, load weight value and load position through flight state parameters, and can intelligently provide the converted overload value through a conversion data display system after data preprocessing and data combination, so that the work of converting the overload value is not needed by personnel, the overload value of real load can be reflected in real time, the intelligent level of an airplane is greatly improved, the requirement of the airplane utilization rate is met, the intelligent level of the flying system is improved, the time is saved, and the use efficiency of the airplane is also improved.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings.

FIG. 1 is a block flow diagram of an embodiment of the present invention.

Detailed Description

As shown in fig. 1, the intelligent conversion method for flight overload according to the present invention includes (1) extracting flight status parameters, (2) preprocessing data, (3) combining data, (4) starting an algorithm, and (5) displaying converted data, and specifically includes the following steps:

(1) extracting flight state parameters: 6 parameters including an overload value, an airplane structure weight value, a fuel oil weight value and a fuel oil position, a load weight value and a load position recorded by flight parameter equipment required by conversion are extracted and stored through a program;

(2) data preprocessing: filtering, compressing and removing sharp points of the extracted overload value data recorded by the flight parameter equipment through a program, and setting a threshold value, wherein the threshold value is 0.4 lower than the overload value allowed by the airplane;

(3) data combination: combining the extracted data together in the same time sequence; wherein the time sequence starts with the retraction signal sent by the aircraft landing gear monitoring system being 0 and ends with the lowering signal sent by the landing gear monitoring system;

Examples

The allowable overload value of a certain airplane is 5.0, and in a certain flight process, the overload value conversion steps are as follows:

(1) extracting state parameters: after the airplane is driven, the flight parameter device on the airplane starts to record data, when the undercarriage monitoring system sends a retraction signal, the program starts to extract 6 parameters of an overload value, an airplane structure weight value, a fuel oil position, a load weight value and a load position recorded by the flight parameter device, and the parameters are stored in the storage device.

(2) Data preprocessing: and filtering, compressing and removing cusp processing the extracted overload value data recorded by the flight parameter device through a program, wherein the set threshold value is 5.0-4.0=4.6, namely, the recorded overload value data higher than 4.6 is reserved.

(3) Data combination: and combining the extracted data according to the same time sequence by taking the processed overload value data recorded by the flight parameter device as a reference, wherein each parameter at each moment is taken as a data combination.

(4) The starting algorithm is as follows: and judging whether the input parameters required by the algorithm are consistent with the data combination by a program according to the data combination, if not, judging again, and if so, converting according to the algorithm. For example, the state parameters of the aircraft at a certain time in the time series are: the overload value ny =5.2, the structure weight M =1000kg, the oil quantity Moil =100L, the gravity center position of the oil Loil =25mm, the weight of the load M1=25kg and the position of the load on the airplane L1=300mm are recorded by the flight parameter equipment; the input parameters required by the algorithm are combined with the data for judgment, and if the parameters required by the algorithm 1 are that the oil quantity Moil is within the range of 50 +/-15 and the structure weight M; the parameters required by the algorithm 2 are that the oil quantity Moil is within the range of 100 +/-15, the structural weight M, and the load is M1 and L1; and (5) comparing the program operation with that the parameters required by the algorithm 2 are consistent with the state parameters, and performing overload conversion by adopting the algorithm 2.

(5) The converted overload of each data combination is obtained through the system, the maximum value in the time sequence is displayed to be 4.9 through the display equipment, and the staff obtains the converted overload value data to compare with the overload value allowed by the airplane to determine whether to carry out inspection work. When the converted overload value is less than or equal to 5.0 of the overload value allowed by the airplane, the airplane can continuously fly without carrying out any ground inspection work; when the converted overload exceeds the overload value 5 allowed by the aircraft, an inspection needs to be carried out.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art, and any modifications, equivalents, improvements, etc. made by using the present invention should be included in the protection scope of the present invention.

Claims

1. The intelligent conversion method for the flight overload is characterized by comprising the following steps of (1) extracting flight state parameters, (2) preprocessing data, (3) combining the data, (4) starting an algorithm and (5) displaying the converted data:

(1) extracting flight state parameters: the flight state parameters comprise 6 parameters including an overload value, an airplane structure weight value, a fuel oil weight value and a fuel oil position, a load weight value and a load position recorded by flight parameter equipment, and the parameters required by conversion are extracted and stored through a program;

(3) data combination: combining the extracted data together according to the same time sequence by taking the processed overload value data recorded by the flight parameter equipment as a reference, wherein the time sequence takes the retraction signal sent by an aircraft undercarriage monitoring system as 0 as the beginning and the extension signal sent by the undercarriage monitoring system as the end;