CN115909543A - Airborne PHM system maintenance data recording method and device based on flight sorties - Google Patents

Abstract

The application belongs to the technical field of aircraft data processing, and in particular relates to a method and device for recording maintenance data of an airborne PHM system based on flight sorties. The method includes step S1, determining whether the flight order of the aircraft changes; step S2, when the flight order changes, writing the airborne PHM system maintenance data under the current flight order into the pre-allocated and numbered next storage space within, and update the label of the storage space to 0, and decrement the label order of the previous storage space by 1, if there is no next storage space, then use the first storage space as the next storage space; when the flight sortie If there is no change, the maintenance data of the airborne PHM system under the current flight order will continue to be written into the storage space currently being written. The application can improve the utilization rate of storage space, and effectively improve the efficiency of maintenance personnel in retrieving and utilizing maintenance data.

Description

Airborne PHM system maintenance data recording method and device based on flight sorties

technical field

The application belongs to the technical field of flight data processing, and in particular relates to a method and device for recording maintenance data of an airborne PHM system based on flight sorties.

Background technique

With the diversification of aircraft tasks and the continuous improvement of structural complexity, the importance of maintenance data to ensure flight safety and enhance the ability of aircraft to perform tasks has become increasingly prominent, and the research on the collection, transmission, recording and application of maintenance data has become more and more popular. Pay attention to. The record of maintenance data is the basis for the application of maintenance data analysis. A comprehensive and orderly record of aircraft maintenance data can provide important information for ground maintenance, fault diagnosis, trend analysis, and life prediction of the airborne PHM (prediction and health management) system. Decision support to ensure the flight safety and effective use of aircraft. At present, in the field of aviation equipment maintenance data record design, there is a lack of methods that can record maintenance data comprehensively and orderly. Therefore, it is necessary to design a certain maintenance data recording process to improve the utilization rate of storage space and effectively improve the efficiency of maintenance personnel to retrieve and utilize maintenance data.

Contents of the invention

In order to solve at least one of the above technical problems, the present application designs a method and device for recording maintenance data of an airborne PHM system based on flight sorties, which is used to support the airborne PHM system to record maintenance data comprehensively and orderly.

The first aspect of the present application provides a method for recording maintenance data of an airborne PHM system based on flight sorties, which mainly includes:

Step S1, determining whether the flight number of the aircraft has changed;

Step S2, when the flight sorties are changed, write the airborne PHM system maintenance data under the current flight sorties into the next pre-allocated and numbered storage space, and update the label of the storage space to 0, and replace the previous If there is no next storage space, the first storage space will be used as the next storage space; when the flight order has not changed, the airborne PHM system under the current flight order will The maintenance data continues to be written into the storage space currently being written.

Preferably, in step S1, determining whether the flight number of the aircraft changes includes:

Step S11, obtaining the flight phase information at the current moment, each of the flight phase information corresponds to a flight sortie information;

Step S12: Obtain the flight number information corresponding to the airborne PHM system maintenance data written into the storage space at the last moment, if the flight number information is inconsistent with the flight number information corresponding to the flight phase information at the current moment, then determine the flight number Whether the flight information has changed.

Preferably, the flight phase information includes but not limited to pre-flight, take-off, cruise, descent, and landing.

Preferably, step S2 further includes:

Step S21, determining that the aircraft is in the flight phase or the ground phase;

Step S22. When the aircraft is in flight, write the onboard PHM system maintenance data into the first sub-area of the current storage space; otherwise, write the onboard PHM system maintenance data into the second subarea of the current storage space. The sub-areas, the first sub-area and the second sub-area are two independent areas that divide each storage space in advance.

The second aspect of the present application provides an airborne PHM system maintenance data recording device based on flight sorties, which mainly includes:

The flight sorties state change determination module is used to determine whether the flight sorties of the aircraft have changed;

The data classification writing module is used to write the airborne PHM system maintenance data under the current flight sort into the next pre-allocated and numbered storage space when the flight sortie changes, and update the label of the storage space is 0, decrement the tag order of the previous storage space by 1, if there is no next storage space, use the first storage space as the next storage space; The onboard PHM system maintenance data continues to be written into the storage space currently being written.

Preferably, the flight sorties state change determination module includes:

The flight stage determination unit at the current moment is used to obtain the flight stage information at the current moment, and each of the flight stage information corresponds to a flight sortie information;

The flight stage determination unit at the last moment is used to obtain the flight number information corresponding to the airborne PHM system maintenance data written into the storage space at the last moment, if the flight number information is the flight number information corresponding to the flight stage information at the current moment If they are inconsistent, determine whether the flight number information has changed.

Preferably, the flight phase information includes but not limited to pre-flight, take-off, cruise, descent, and landing.

Preferably, the data classification writing module includes:

A data type determination unit, configured to determine whether the aircraft is in the flight phase or the ground phase;

The sub-area data writing unit is used to write the on-board PHM system maintenance data into the first sub-area of the current storage space when the aircraft is in flight, otherwise, write the on-board PHM system maintenance data into For the second sub-area of the current storage space, the first sub-area and the second sub-area are two independent areas that divide each storage space in advance.

The method for recording maintenance data of an airborne PHM system based on flight sorties provided in this application can improve the utilization rate of storage space and effectively improve the efficiency of maintenance personnel in retrieving and utilizing maintenance data.

Description of drawings

FIG. 1 is a flow chart of an embodiment of the flight-based airborne PHM system maintenance data recording method of the present application.

Fig. 2 is a schematic diagram of updating flight data records in a preferred embodiment of the present application.

Fig. 3 is a schematic diagram of label updating in the embodiment shown in Fig. 2 of the present application.

Detailed ways

In order to make the objectives, technical solutions and advantages of the implementation of the application clearer, the technical solutions in the implementation modes of the application will be described in more detail below with reference to the drawings in the implementation modes of the application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the present application. The embodiments described below by referring to the figures are exemplary and are intended to explain the present application, and should not be construed as limiting the present application. Based on the implementation manners in this application, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts fall within the scope of protection of this application. Embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.

The first aspect of the present application provides a method for recording maintenance data of an airborne PHM system based on flight sorties, which mainly includes:

Step S1, determining whether the flight number of the aircraft has changed;

Step S2, when the flight sorties are changed, write the airborne PHM system maintenance data under the current flight sorties into the next pre-allocated and numbered storage space, and update the label of the storage space to 0, and replace the previous If there is no next storage space, the first storage space will be used as the next storage space; when the flight order has not changed, the airborne PHM system under the current flight order will The maintenance data continues to be written into the storage space currently being written.

In some optional implementation manners, in step S1, determining whether the flight number of the aircraft has changed includes:

Step S11, obtaining the flight phase information at the current moment, each of the flight phase information corresponds to a flight sortie information;

Step S12: Obtain the flight number information corresponding to the airborne PHM system maintenance data written into the storage space at the last moment, if the flight number information is inconsistent with the flight number information corresponding to the flight phase information at the current moment, then determine the flight number Whether the flight information has changed.

In some optional implementation manners, the flight phase information includes but not limited to before takeoff, takeoff, cruise, descent, and landing.

In some optional implementation manners, step S2 further includes:

Step S21, determining that the aircraft is in the flight phase or the ground phase;

Step S22. When the aircraft is in flight, write the onboard PHM system maintenance data into the first sub-area of the current storage space; otherwise, write the onboard PHM system maintenance data into the second subarea of the current storage space. The sub-areas, the first sub-area and the second sub-area are two independent areas that divide each storage space in advance.

It should be noted that this application allocates storage space before writing data into the corresponding storage space. Specifically, it can be based on the size of the hardware storage space of the onboard PHM system and the amount of maintenance data generated by each flight of the aircraft. , pre-allocate the storage space into several blocks, each block of storage space is used to record the maintenance data of a flight sortie, each block of storage space (Si) is further divided into two parts (Fi and Di), and Fi is used to store the maintenance data generated during the flight Maintenance data, Di is used to store maintenance data generated during the ground phase.

Afterwards, in step S1, according to the flight stage information (including pre-takeoff, takeoff, cruise, descent, landing, etc.) The judgment condition is: the flight phase changes from "before takeoff" to "takeoff".

In step S2, if the number of flight sorties has not changed, then continue to write data according to the previous writing control method, if the number of flight sorties has changed, it usually includes the following two updates:

(1) Storage label update

Whenever the aircraft enters a new flight sortie, update the flight sortie label corresponding to the storage space. The specific updating principles are:

1) For the used storage space, update their corresponding flight sorties tags, leg0 is updated to leg-1, leg-1 is updated to leg-2, and so on (this will not be performed if the storage space is not used);

2) If the storage space is full, update the flight sortie tag corresponding to the storage space that records the earliest sortie data to leg0;

3) If the storage space is not full, update the flight sortie label corresponding to an unused storage space to leg0.

(2) Data writing

According to the flight phase information, determine whether the aircraft is in the ground phase, and record the currently generated maintenance data into the corresponding part of the storage space labeled leg0, namely:

1) If the aircraft is in flight, the maintenance data is recorded to the Fi part;

2) If the aircraft is in the ground phase, the maintenance data is recorded to the Di part.

The airborne PHM system maintenance data recording process of this sortie continues until the end of this sortie. The schematic diagram of the above-mentioned entire process is shown in Figure 1.

The present invention will be further described below by way of example.

Assume that the storage space of an aircraft can store the maintenance data of 5 flight sorties, and the data in the storage space and the flight number tags are constantly updated. Referring to Figure 2 and Figure 3, assuming that 6 flight sorties have been carried out, repeat steps S1-S2, The update process of the data in the storage space and the flight sortie label is as follows:

Referring to Fig. 2, firstly, the flight data 1 of the first flight sortie is recorded in the first sub-area F1 of the storage space S1, and correspondingly, the ground data of the first flight sortie is recorded in the second sub-area D1 of the storage space S1 1. It should be pointed out here that in Fig. 2, the in-flight maintenance data in the Xth flight sortie is abbreviated as "flight data X", and the ground status maintenance data in the Xth flight sortie is abbreviated as "ground data X". Referring to FIG. 3 correspondingly, the label of the storage space S1 is marked as leg0 at this time.

Immediately afterwards, the number of flight sorties changes. At this time, in FIG. 2 , the flight data 2 of the second flight sortie is recorded in the first sub-area F2 of the storage space S2, and correspondingly, in the second sub-area D2 of the storage space S2 The ground data 2 of the second flight sortie is recorded, correspondingly refer to Figure 3, at this time, the label of the new storage space, that is, the storage space S2, is the label 0, that is, leg0, and the label of the previous storage space S1 is reduced by 1, becomes leg-1.

Afterwards, the flight sorties continue to change until the fifth storage space S5 writes the data of the fifth flight sorties. At this time, when the flight sorties change again, since the five storage spaces are all filled with data, the The earliest written data is overwritten, that is, as shown in Figure 2, the flight data 6 of the sixth flight sortie is written into the first sub-area S1 of the first storage space S1, and the sixth flight sortie The ground data 6 of the sortie is written into the second sub-area D1 of the first storage space S1. At the same time, referring to FIG. 3, the label of the first storage space S1 is updated to leg0, and the other labels continue to be decremented by 1.

Through the above method, the present application can improve the utilization rate of the storage space, and effectively improve the efficiency of the maintenance personnel in retrieving and utilizing the maintenance data.

The second aspect of the present application provides an airborne PHM system maintenance data recording device based on flight sorties corresponding to the above method, mainly including:

The flight sorties state change determination module is used to determine whether the flight sorties of the aircraft have changed;

The data classification writing module is used to write the airborne PHM system maintenance data under the current flight sort into the next pre-allocated and numbered storage space when the flight sortie changes, and update the label of the storage space is 0, decrement the tag order of the previous storage space by 1, if there is no next storage space, use the first storage space as the next storage space; The onboard PHM system maintenance data continues to be written into the storage space currently being written.

In some optional implementation manners, the flight sorties state change determination module includes:

The flight stage determination unit at the current moment is used to obtain the flight stage information at the current moment, and each of the flight stage information corresponds to a flight sortie information;

The flight stage determination unit at the last moment is used to obtain the flight number information corresponding to the airborne PHM system maintenance data written into the storage space at the last moment, if the flight number information is the flight number information corresponding to the flight stage information at the current moment If they are inconsistent, determine whether the flight number information has changed.

In some optional implementation manners, the flight phase information includes but not limited to before takeoff, takeoff, cruise, descent, and landing.

In some optional implementation manners, the data classification writing module includes:

A data type determination unit, configured to determine whether the aircraft is in the flight phase or the ground phase;

The sub-area data writing unit is used to write the on-board PHM system maintenance data into the first sub-area of the current storage space when the aircraft is in flight, otherwise, write the on-board PHM system maintenance data into For the second sub-area of the current storage space, the first sub-area and the second sub-area are two independent areas that divide each storage space in advance.

The above is only a specific embodiment of the application, but the scope of protection of the application is not limited thereto. Any person familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the application. All should be covered within the scope of protection of this application. Therefore, the protection scope of the present application should be determined by the protection scope of the claims.

Claims (8)

1. A maintenance data recording method of an airborne PHM system based on flight number is characterized by comprising the following steps:

s1, determining whether the number of flying frames of an airplane is changed;

s2, after the flying frame number is changed, writing the maintenance data of the airborne PHM system under the current flying frame number into a next storage space which is pre-distributed and numbered, updating the label of the storage space to be 0, subtracting 1 from the label sequence of the previous storage space, and taking the first storage space as the next storage space if the next storage space does not exist; and when the flying rack number is not changed, continuously writing the maintenance data of the airborne PHM system under the current flying rack number into the current written storage space.

2. The method as claimed in claim 1, wherein the step S1 of determining whether the flight number of the airplane is changed includes:

s11, obtaining flight phase information of the current moment, wherein each flight phase information corresponds to flight number information;

and S12, acquiring flight number information corresponding to maintenance data of the airborne PHM system written into the storage space at the previous moment, and if the flight number information is inconsistent with the flight number information corresponding to the flight phase information at the current moment, determining whether the flight number information is changed.

3. The method as claimed in claim 2, wherein the flight deck based onboard PHM system maintenance data recording method is characterized in that the flight phase information includes, but is not limited to, pre-takeoff, cruise, descent, landing.

4. The method of claim 1, wherein step S2 further comprises:

s21, determining that the airplane is in a flight stage or a ground stage;

and S22, when the airplane is in a flight phase, writing the maintenance data of the airborne PHM system into a first sub-area of the current storage space, otherwise, writing the maintenance data of the airborne PHM system into a second sub-area of the current storage space, wherein the first sub-area and the second sub-area are two independent areas which divide each storage space in advance.

5. The utility model provides an airborne PHM system maintenance data recorder based on flight number, its characterized in that includes:

the flight number state change determining module is used for determining whether the flight number of the airplane is changed or not;

the data classification writing module is used for writing the maintenance data of the airborne PHM system under the current flight number into a next storage space which is pre-allocated and numbered after the flight number is changed, updating the label of the storage space to be 0, subtracting 1 from the label sequence of the previous storage space, and taking the first storage space as the next storage space if the next storage space does not exist; and when the flying rack number is not changed, continuously writing the maintenance data of the airborne PHM system under the current flying rack number into the currently written storage space.

6. The rack-based airborne PHM system maintenance data logging device of claim 5, wherein the rack-status-change determination module comprises:

the current-time flight phase determining unit is used for acquiring flight phase information of the current time, wherein each piece of flight phase information corresponds to one piece of flight frame information;

and the last-moment flying phase determining unit is used for acquiring flying frame number information corresponding to the maintenance data of the airborne PHM system written into the storage space at the last moment, and if the flying frame number information is inconsistent with the flying frame number information corresponding to the flying phase information at the current moment, determining whether the flying frame number information is changed.

7. The flying rack-based airborne PHM system maintenance data logging device of claim 6, wherein said flight phase information includes, but is not limited to, pre-takeoff, cruise, descent, landing.

8. The apparatus of claim 5, wherein the data classification writing module comprises:

the data type determining unit is used for determining that the airplane is in a flight phase or a ground phase;

and a sub-region data writing unit, configured to write the onboard PHM system maintenance data into a first sub-region of a current storage space when the aircraft is in a flight phase, and otherwise, write the onboard PHM system maintenance data into a second sub-region of the current storage space, where the first sub-region and the second sub-region are two independent regions into which each storage space is divided in advance.

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