CN112491463B - Method for identifying aircraft flight segment based on ACARS message - Google Patents

Method for identifying aircraft flight segment based on ACARS message Download PDF

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CN112491463B
CN112491463B CN202011383064.6A CN202011383064A CN112491463B CN 112491463 B CN112491463 B CN 112491463B CN 202011383064 A CN202011383064 A CN 202011383064A CN 112491463 B CN112491463 B CN 112491463B
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message
acars
current
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flight segment
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CN112491463A (en
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晏震乾
黄加阳
李喆
陈金
孙伟
张世杰
顾思达
徐一达
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Shanghai Aircraft Customer Service Co ltd
Commercial Aircraft Corp of China Ltd
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Commercial Aircraft Corp of China Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/18502—Airborne stations
    • H04B7/18506—Communications with or from aircraft, i.e. aeronautical mobile service
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D45/00—Aircraft indicators or protectors not otherwise provided for
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G5/00—Traffic control systems for aircraft, e.g. air-traffic control [ATC]
    • G08G5/0073—Surveillance aids
    • G08G5/0082—Surveillance aids for monitoring traffic from a ground station
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D45/00—Aircraft indicators or protectors not otherwise provided for
    • B64D2045/0085—Devices for aircraft health monitoring, e.g. monitoring flutter or vibration

Abstract

The invention discloses a method for identifying an aircraft flight segment based on an ACARS message, which comprises the following steps: acquiring an ACARS message which is sent by an airplane and accords with a preset standard as a current message; analyzing the obtained current message to obtain a flight segment identification parameter contained in the current message, wherein the flight segment identification parameter comprises a message type, an airplane identification number, event triggering time and airborne oil quantity; comparing and analyzing the current message with a historical message which has the same airplane identification number and belongs to the current flight segment, wherein the comparison and analysis comprises the comparison of flight segment identification parameters; and identifying the current flight segment to which the current message belongs based on the result of the comparative analysis. According to the method for identifying the aircraft flight segment based on the ACARS message, the aircraft flight segment can be accurately and reliably identified, particularly the adverse situation that the message is seriously out of order can be overcome, an accurate identification result can be obtained, and the scheme has better robustness.

Description

Method for identifying aircraft flight segment based on ACARS message
Technical Field
The invention relates to a method for identifying an aircraft flight segment based on an ACARS message.
Background
The ACARS messages are generally used by major manufacturers and airlines of airplanes to perform real-time status monitoring and health management on airplanes, where message information needs to be managed according to airplanes and flight legs. Therefore, accurate identification of the flight segment based on the ACARS message is an important link and basis for real-time state monitoring, fault diagnosis, health management and the like of the airplane. Segment identification based on ACARS messages is generally based on ACARS messages received by a ground system and sent by airplanes, and identifies the flight process of each airplane from takeoff to next landing.
Since the ACARS message transmission process between the aircraft and the ground system is affected by various environmental factors or accidental adverse factors in practical application, it is difficult to avoid problems such as ACARS message loss (i.e. very high frequency signals may be lost) or message information content errors or losses or message disorder in some cases. These problems, in turn, can pose challenges or adverse effects on accurately identifying flight legs based on ACARS messages. Therefore, how to accurately identify the flight segment based on the ACARS message under the unfavorable condition that the ACARS message has some errors, deletions or disorder is a problem to be solved.
At present, some solutions have been proposed in the art for the segment identification in the chaotic state of the ACARS message.
For example, the relevant segment identification method is also involved in the boeing AHM system and the airbus AIRMAN system. For another example, the Sun Shuguang professor of the electronic information engineering institute of China civil aviation university also proposes a logical method for flight segment identification, and designs a flight segment identification expert system.
However, although the existing solutions can partially solve the problem of inaccurate segment identification caused by message loss and message information content errors, the effects of the existing solutions are not satisfactory. The existing solutions mainly have at least the following disadvantages:
(1) the method can not solve the extreme disorder condition of the messages, such as the random disorder sequence of the messages of more than three flight segments, and under the condition, the existing method can often generate unpredictable error recognition results.
(2) The parameters used in the existing method to assist segment identification include such parameters as flight number, departure airport, arrival airport, etc., and the parameters are too complex, which increases the risk of inaccurate segment identification result due to the error of some of the parameters, thus making the logic of the existing solution too complex and poor in robustness, and the practical effect is not good.
Therefore, it is desirable to provide a new method for identifying aircraft segments based on ACARS messages, so as to at least partially alleviate or solve the above-mentioned problems in the prior art.
Disclosure of Invention
The invention aims to overcome the defects that the existing solution for identifying the aircraft flight segment based on the ACARS message cannot realize accurate identification when the ACARS message has serious errors such as disorder and the like, the identification accuracy and reliability are poor and the scheme robustness is insufficient, and provides a novel method for identifying the aircraft flight segment based on the ACARS message.
The invention solves the technical problems through the following technical scheme:
the invention provides a method for identifying an aircraft flight segment based on an ACARS message, which is characterized by comprising the following steps:
acquiring an ACARS message which is sent by an airplane and meets a preset standard as a current ACARS message;
analyzing the obtained current ACARS message to obtain a flight segment identification parameter contained in the current ACARS message, wherein the flight segment identification parameter comprises a message type, an airplane identification number, event triggering time and airborne fuel quantity;
comparing and analyzing the current ACARS message with historical ACARS messages which have the same airplane identification number and belong to the current flight segment, wherein the comparison and analysis comprises the comparison of flight segment identification parameters;
and identifying the current flight segment to which the current ACARS message belongs based on the result of the comparative analysis.
According to an embodiment of the present invention, the packet types meeting the predetermined specification include: OUT type, OFF type, POS type, ON type, and IN type;
the ACARS messages of OUT type, OFF type, POS type, ON type and IN type IN a predetermined order are used to indicate completion of a leg.
According to one embodiment of the invention, the step of performing said comparative analysis comprises the sub-steps of:
judging whether the event triggering time of the current ACARS message is earlier than the latest event triggering time in the historical ACARS message belonging to the current flight segment;
if yes, reordering the current ACARS message and the historical ACARS message based on the preset sequence to reconstruct all ACARS messages belonging to the current flight segment;
and if not, comparing and analyzing the current ACARS message and the historical ACARS message according to a preset identification rule, wherein the preset identification rule is based on the message type and the airborne oil quantity in the flight segment identification parameter.
According to an embodiment of the present invention, the preset identification rule includes:
and if the message type of the current ACARS message is the OUT type, determining that a new flight segment needs to be generated.
According to an embodiment of the present invention, the preset identification rule includes:
if the message type of the current ACARS message is an OFF type and the historical ACARS message belonging to the current flight segment does not comprise ACARS messages of the OFF type and the POS type, updating the current flight segment;
and if the message type of the current ACARS message is an OFF type and the historical ACARS message belonging to the current flight segment comprises an ACARS message of an OFF type or a POS type, determining that a new flight segment needs to be generated.
According to an embodiment of the present invention, the preset identification rule includes:
and if the message type of the current ACARS message is a POS type and the historical ACARS message belonging to the current leg comprises an IN type ACARS message, determining that a new leg is required to be generated.
According to an embodiment of the present invention, the preset identification rule includes:
if the message type of the current ACARS message is a POS type, and the historical ACARS message belonging to the current flight segment comprises an OFF type or POS type ACARS message but does not comprise an IN type ACARS message, further judging whether the time difference between the event trigger time of the current ACARS message and the latest event trigger time IN the historical ACARS message exceeds a preset time threshold value or not;
and if so, determining that a new flight segment needs to be generated.
According to an embodiment of the present invention, the preset identification rule includes:
if the message type of the current ACARS message is a POS type, and the historical ACARS message belonging to the current flight segment comprises an OFF type or POS type ACARS message but does not comprise an IN type ACARS message, further judging whether the onboard oil quantity of the current ACARS message is larger than the onboard oil quantity corresponding to the latest event trigger time IN the historical ACARS message;
and if so, determining that a new flight segment needs to be generated.
According to an embodiment of the present invention, the preset identification rule includes:
and if the message type of the current ACARS message is an ON type and the historical ACARS message belonging to the historical latest flight segment does not comprise the ACARS message of the ON type, updating the current flight segment.
According to an embodiment of the present invention, the preset identification rule includes:
and if the message type of the current ACARS message is an IN type and the historical ACARS message belonging to the historical latest flight segment does not comprise the ACARS message of the IN type, updating the current flight segment.
On the basis of the common knowledge in the field, the above preferred conditions can be combined randomly to obtain the preferred embodiments of the invention.
The positive progress effects of the invention are as follows:
according to the method for identifying the aircraft flight segment based on the ACARS message, the aircraft flight segment can be accurately and reliably identified, particularly the adverse situation that the ACARS message is seriously out of order can be overcome, an accurate identification result can be obtained, and the scheme has better robustness.
Drawings
Fig. 1 is a flowchart illustrating a method for identifying an aircraft segment based on an ACARS message according to a preferred embodiment of the present invention.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, is intended to be illustrative, and not restrictive, and it is intended that all such modifications and equivalents be included within the scope of the present invention.
In the following detailed description, directional terms, such as "left", "right", "upper", "lower", "front", "rear", and the like, are used with reference to the orientation as illustrated in the drawings. Components of embodiments of the present invention can be positioned in a number of different orientations and the directional terminology is used for purposes of illustration and is in no way limiting.
Referring to fig. 1, a method for identifying an aircraft segment based on an ACARS message according to a preferred embodiment of the present invention includes the following steps:
acquiring an ACARS message which is sent by an airplane and meets a preset standard as a current ACARS message;
analyzing the obtained current ACARS message to obtain the flight segment identification parameters contained in the current ACARS message, wherein the flight segment identification parameters comprise a message type, an airplane identification number, event triggering time and airborne oil quantity;
comparing and analyzing the current ACARS message with historical ACARS messages which have the same airplane identification number and belong to the current flight segment, wherein the comparison and analysis comprises the comparison of flight segment identification parameters;
and identifying the current flight segment to which the current ACARS message belongs based on the result of the comparative analysis.
It should be understood that the historical ACARS messages belonging to the current leg and the historical leg information may each be formed based on previously received ACARS messages, and that the current leg referred to herein may also be determined based on previously received ACARS messages.
The message types meeting the preset specification comprise: OUT type, OFF type, POS type, ON type, and IN type. The ACARS messages of OUT type, OFF type, POS type, ON type, and IN type IN a predetermined order may be used to indicate completion of a leg. It is to be understood that the five types of messages from OUT type to IN type may generally indicate that a leg is completed, i.e. a "historical leg" is formed, and the leg considered as unfinished belongs to the current leg.
In other words, according to the method of the above embodiment of the present invention, only the five types of packets as described above may be processed or parsed to identify the segment. In addition, in the process of analyzing the message, at least several parameters, namely the message type, the airplane identification number, the event triggering time and the onboard fuel quantity, can be utilized or related. This will help to reduce the possibility of errors in the message parameters and further make this approach more accurate, practical, and robust, since the several types of necessary parameters used are themselves generally more reliable.
It should also be understood that the above five types of message types, i.e., OUT type, OFF type, POS type, ON type, and IN type, and their definitions or approximate meanings are known to those skilled IN the relevant art. IN short, the OUT type message generally indicates that a cabin door of the airplane is closed, the OFF type message generally indicates that the airplane takes OFF, the POS type message generally indicates a flight phase of the airplane, the ON type message generally indicates that the airplane lands, and the IN type message generally indicates that the airplane takes OFF after landing.
Table 1 message type and parameter list
Type of message Parameter(s)
OUT Aircraft number, OUT event trigger time and onboard oil mass
OFF Aircraft number, OFF event trigger time, and onboard fuel quantity
POS Airplane number, POS event trigger time and onboard oil mass
ON Airplane number, ON event trigger time and onboard oil mass
IN Airplane number, IN event trigger time and onboard oil mass
According to the method of the above embodiment of the present invention, the five types of message types and parameter types involved can be referred to in table 1 above.
On this basis, according to the preferred embodiment of the present invention, the flight segment identification rule shown in table 2 below can be specifically adopted for the flight segment identification.
TABLE 2 leg identification rule List
Figure BDA0002808982720000061
Figure BDA0002808982720000071
The flight segment identification rules R1-R8 can be designed in different judgment orders according to actual needs, for example, the judgment can be carried out based on the rule R1 firstly, and then if the judgment condition of R1 is not satisfied, the judgment is carried out based on the rules R2-R8 in parallel
According to some preferred embodiments of the invention, the step of performing a comparative analysis comprises the sub-steps of:
judging whether the event triggering time of the current ACARS message is earlier than the latest event triggering time in the historical ACARS message belonging to the current flight segment;
if yes, reordering the current ACARS message and the historical ACARS message based on a preset sequence to reconstruct all ACARS messages belonging to the current flight segment;
if not, comparing and analyzing the current ACARS message and the historical ACARS message according to a preset identification rule, wherein the preset identification rule is based on the message type and the airborne oil quantity in the flight segment identification parameter.
In other words, the determination is first made based on the rule R1.
Referring to table 2 above, according to some preferred embodiments of the present invention, the preset identification rule includes:
if the message type of the current ACARS message is the OUT type, it is determined that a new leg needs to be generated (i.e., rule R2).
According to some preferred embodiments of the present invention, the preset identification rule includes:
if the message type of the current ACARS message is an OFF type and the historical ACARS message belonging to the current flight segment does not comprise ACARS messages of the OFF type and the POS type, updating the current flight segment;
if the message type of the current ACARS message is OFF type and the historical ACARS message belonging to the current leg includes an ACARS message of OFF type or POS type, it is determined that a new leg needs to be generated (i.e., rule R3).
It is understood that the comparative analysis result for generating the new leg in this context means that the last step of the above method, i.e. the step of identifying the current leg to which the current ACARS message belongs, may be performed as: and generating a new flight segment on the basis of the historical flight segment information, or determining that the airplane enters the next flight segment. If the result of the comparison analysis is an updated leg, it means that the last step of the method, namely the step of identifying the current leg to which the current ACARS message belongs, can be executed as follows: and determining that the flight section where the airplane is located is unchanged.
According to some preferred embodiments of the present invention, the preset identification rule includes:
if the message type of the current ACARS message is the POS type and the historical ACARS message belonging to the current leg includes the IN type ACARS message, it is determined that a new leg needs to be generated (i.e., rule R4).
According to some preferred embodiments of the present invention, the preset identification rule includes:
if the message type of the current ACARS message is a POS type, and the historical ACARS message belonging to the current flight segment comprises an OFF type or POS type ACARS message but does not comprise an IN type ACARS message, further judging whether the time difference between the event trigger time of the current ACARS message and the latest event trigger time IN the historical ACARS message exceeds a preset time threshold value or not;
if so, it is determined that a new leg needs to be generated (i.e., rule R5).
According to some preferred embodiments of the present invention, the preset identification rule includes:
if the message type of the current ACARS message is a POS type, and the historical ACARS message belonging to the current flight segment comprises an OFF type or POS type ACARS message but does not comprise an IN type ACARS message, further judging whether the onboard oil quantity of the current ACARS message is larger than the onboard oil quantity corresponding to the latest event trigger time IN the historical ACARS message;
if so, it is determined that a new leg needs to be generated (i.e., rule R6).
According to some preferred embodiments of the present invention, the preset identification rule includes:
if the message type of the current ACARS message is an ON type and the historical ACARS message belonging to the historical latest leg does not include the ACARS message of the ON type, the current leg is updated (i.e., rule R7).
According to some preferred embodiments of the present invention, the preset identification rule includes:
if the message type of the current ACARS message is IN type and the historical ACARS message belonging to the historical latest leg does not include the ACARS message of IN type, the current leg is updated (i.e. rule R8).
An application case of the method for identifying an aircraft flight segment based on ACARS messages according to the above preferred embodiment of the present invention is implemented as follows:
the method comprises the steps that firstly, an ACARS message is obtained through an ACARS message obtaining interface, and the obtained ACARS message is a message original text meeting ARINC620 specifications;
step two, acquiring the five types of ACARS messages, analyzing the ACARS messages by a suitably configured message analysis method or tool to obtain a parameter information set in the current message, and identifying a plurality of parameters for identifying the flight segment;
and step three, comparing and analyzing the current message parameters with the historical messages and the historical flight sections, and obtaining a flight section identification conclusion according to the preset flight section identification rule.
According to the method for identifying the aircraft flight segment based on the ACARS message in the preferred embodiment of the invention, the aircraft flight segment can be accurately and reliably identified, particularly the adverse conditions of serious disorder and even extreme disorder of the ACARS message can be overcome, and an accurate and reliable flight segment identification result can be obtained. And according to the above-described solution of the present invention, its overall robustness is significantly superior to existing solutions in the related art.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that these are by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.

Claims (8)

1. A method for identifying an aircraft flight segment based on an ACARS message is characterized by comprising the following steps:
the method comprises the steps that ACARS messages which are sent by an airplane and conform to a preset standard are obtained to serve as current ACARS messages, wherein the message types which conform to the preset standard comprise OUT types, OFF types, POS types, ON types and IN types, and the ACARS messages of the OUT types, the OFF types, the POS types, the ON types and the IN types IN a preset sequence are used for representing the completion of one flight segment;
analyzing the obtained current ACARS message to obtain a flight segment identification parameter contained in the current ACARS message, wherein the flight segment identification parameter comprises a message type, an airplane identification number, event triggering time and airborne fuel quantity;
comparing and analyzing the current ACARS message with historical ACARS messages which have the same airplane identification number and belong to the current flight segment, wherein the comparison and analysis comprises the comparison of flight segment identification parameters;
identifying the current flight segment to which the current ACARS message belongs based on the result of the comparative analysis;
wherein the step of performing the comparative analysis comprises the sub-steps of:
judging whether the event triggering time of the current ACARS message is earlier than the latest event triggering time in the historical ACARS message belonging to the current flight segment;
if yes, reordering the current ACARS message and the historical ACARS message based on the preset sequence to reconstruct all ACARS messages belonging to the current flight segment;
and if not, comparing and analyzing the current ACARS message and the historical ACARS message according to a preset identification rule, wherein the preset identification rule is based on the message type and the airborne oil quantity in the flight segment identification parameter.
2. The method for identifying aircraft flight segments based on ACARS messages as claimed in claim 1, wherein the predetermined identification rules include:
and if the message type of the current ACARS message is the OUT type, determining that a new flight segment needs to be generated.
3. The method for identifying aircraft flight segments based on ACARS messages as claimed in claim 1, wherein the predetermined identification rules include:
if the message type of the current ACARS message is an OFF type and the historical ACARS message belonging to the current flight segment does not comprise ACARS messages of the OFF type and the POS type, updating the current flight segment;
and if the message type of the current ACARS message is an OFF type and the historical ACARS message belonging to the current flight segment comprises an ACARS message of an OFF type or a POS type, determining that a new flight segment needs to be generated.
4. The method for identifying aircraft flight segments based on ACARS messages as claimed in claim 1, wherein the predetermined identification rules include:
and if the message type of the current ACARS message is a POS type and the historical ACARS message belonging to the current leg comprises an IN type ACARS message, determining that a new leg is required to be generated.
5. The method for identifying aircraft flight segments based on ACARS messages as claimed in claim 1, wherein the predetermined identification rules include:
if the message type of the current ACARS message is a POS type, and the historical ACARS message belonging to the current flight segment comprises an OFF type or POS type ACARS message but does not comprise an IN type ACARS message, further judging whether the time difference between the event trigger time of the current ACARS message and the latest event trigger time IN the historical ACARS message exceeds a preset time threshold value or not;
and if so, determining that a new flight segment needs to be generated.
6. The method for identifying aircraft flight segments based on ACARS messages as claimed in claim 1, wherein the predetermined identification rules include:
if the message type of the current ACARS message is a POS type, and the historical ACARS message belonging to the current flight segment comprises an OFF type or POS type ACARS message but does not comprise an IN type ACARS message, further judging whether the onboard oil quantity of the current ACARS message is larger than the onboard oil quantity corresponding to the latest event trigger time IN the historical ACARS message;
and if so, determining that a new flight segment needs to be generated.
7. The method for identifying aircraft flight segments based on ACARS messages as claimed in claim 1, wherein the predetermined identification rules include:
and if the message type of the current ACARS message is an ON type and the historical ACARS message belonging to the historical latest flight segment does not comprise the ACARS message of the ON type, updating the current flight segment.
8. The method for identifying aircraft flight segments based on ACARS messages as claimed in claim 1, wherein the predetermined identification rules include:
and if the message type of the current ACARS message is an IN type and the historical ACARS message belonging to the historical latest flight segment does not comprise the ACARS message of the IN type, updating the current flight segment.
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