CN110830497A

CN110830497A - ACARS message identification method, device, server and storage medium

Info

Publication number: CN110830497A
Application number: CN201911120410.9A
Authority: CN
Inventors: 褚孝鹏; 姜博畅; 赵辰; 张宇; 陈玉杰
Original assignee: Tianjin Optical Electrical Communication Technology Co Ltd
Current assignee: Tianjin Optical Electrical Communication Technology Co Ltd
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2020-02-21

Abstract

The embodiment of the invention discloses an ACARS message identification method, an ACARS message identification device, a server and a storage medium, wherein the method comprises the following steps: receiving an ACARS message; filtering the received ACRAS message to ensure the completeness of the filtered ACRAS message; and extracting key information of the filtered ACRAS message to obtain an effective ACARS message. The method can effectively solve the error code caused by transmission error and human factors, further improve the accuracy and the integrity of the air-ground data, and enhance the adaptability and the expansibility of message parameter decoding.

Description

ACARS message identification method, device, server and storage medium

Technical Field

The invention relates to the technical field of aeronautical communication, in particular to an ACARS message identification method, an ACARS message identification device, a server and a storage medium.

Background

Aircraft Communication Addressing and Reporting Systems (ACARS). Briefly, it is an early application of the air-ground data link system or system architecture, and the initial function is to provide a statistical method of flight time of the flight crew or some simple operation control information. With the development and the improvement of the system, the ACARS can provide more aviation operation control information, and more gradually realize some air traffic control functions.

The use of ACARS began in 1978. At that time, a system for providing an aviation operation control function was developed in order to facilitate the calculation of the duty time of the aircrew. This system provides the actual OUT (push OFF), OFF (ground OFF), ON (ground ON), IN (stop OFF) times and is therefore referred to as "OOOI". And some automatic downloading functions of the maintenance information of the airplane system are added at a later time. The functions are seemingly simple but provide great convenience for the operation control of the airline company, and the basic functions also go through the development process of more than twenty years along with the ACARS. With the development of ACARS systems, more information is transferred between the aircraft and the ground: the pilot can obtain the weather forecast, navigation announcement and issued release instruction uploaded on the ground in time through the ACARS, and even voice communication with the air traffic control department can be replaced by data link text information; the airplane can also automatically send the running real-time conditions, such as OOOI state, position report and engine monitoring message, to the signing and dispatching department or the maintenance department through the ACARS, and the signing and dispatching personnel and the aircraft department can make preparations according to the interpretation of various information and provide support for the decision of pilots.

The ACARS gets rid of the limitation that the prior air-ground communication only has voice, and takes the communication task with the ground as automatically as possible; the workload of pilots and controllers is reduced, the airspace capacity and efficiency are increased, the safety of flight is improved, and a monitoring method for areas outside the extra radar coverage area is provided; the flight information and the equipment state of the airplane can be supported by ground technology in the whole flight process through real-time data exchange with the terminal of the airline company.

In the process of implementing the invention, the inventor finds the following technical problems: ACARS data causes received message data to be irregular during transmission due to transmission errors, burst interference, artifacts such as bit errors, message loss, etc. of a data communication network. With the rapid development of civil aviation industry, the number and types of ACARS messages are increasing, and the traditional message processing is not suitable for the development speed in various aspects such as processing efficiency and maintainability.

Disclosure of Invention

The embodiment of the invention provides an ACARS message identification method, an ACARS message identification device, a server and a storage medium, and aims to solve the technical problems.

In a first aspect, an embodiment of the present invention provides an ACARS packet identification method, including:

receiving an ACARS message;

filtering the received ACRAS message to ensure the completeness of the filtered ACRAS message;

and extracting key information of the filtered ACRAS message to obtain an effective ACARS message.

Further, the filtering the received ACRAS packet includes:

and determining whether the ACARS message is qualified or not according to the length range of the received ACARS message.

Further, the filtering the received ACRAS packet further includes:

and filtering the ACRAS message frame with incomplete data.

Further, the extracting key information of the filtered ACRAS message to obtain an effective ACARS message includes:

and extracting key information according to the characteristic value in the ACRAS message.

analyzing different types of data formats according to Label fields of the ACARS information, and extracting key information according to the data formats.

Further, the method further comprises:

and checking the filtered message to ensure that the filtered message is complete and has no errors.

Further, the verifying the filtered message includes:

checking the filtered message according to a preset check bit; and/or

And checking according to the format, the attribute and the range of the message parameters.

In a second aspect, an embodiment of the present invention further provides an ACARS packet identifying device, including:

the receiving module is used for receiving the ACARS message;

the filtering module is used for filtering the received ACRAS message so as to ensure the completeness of the filtered ACRAS message;

and the extraction module is used for extracting key information of the filtered ACRAS message so as to obtain an effective ACARS message.

Further, the filtering module includes:

and the qualification determining unit is used for determining whether the ACARS message is qualified according to the length range of the received ACARS message.

Further, the filtering module further comprises:

further, the calculation module is configured to:

and the filtering unit is used for filtering the ACRAS message frame with incomplete data.

Further, the extraction module comprises:

and the first extraction unit is used for extracting key information according to the characteristic value in the ACRAS message.

Further, the extraction module comprises:

and the second extraction unit is used for analyzing different types of data formats according to the Label field of the ACARS information and extracting the key information according to the data formats.

Further, the apparatus further comprises:

and the checking module is used for checking the filtered message so as to ensure that the filtered message is complete and has no errors.

Further, the check module is configured to:

checking the filtered message according to a preset check bit; and/or

In a third aspect, an embodiment of the present invention further provides a server, where the server includes:

one or more processors;

a storage device for storing one or more programs,

when the one or more programs are executed by the one or more processors, the one or more processors implement any of the ACARS message identification methods provided by the above embodiments.

In a fourth aspect, an embodiment of the present invention further provides a storage medium containing computer-executable instructions, which when executed by a computer processor, are configured to perform any one of the ACARS message identification methods provided in the foregoing embodiments.

The ACARS message identification method, the ACARS message identification device, the ACARS message identification server and the storage medium provided by the embodiment of the invention receive the ACARS message; filtering the received ACRAS message to ensure the completeness of the filtered ACRAS message; and extracting key information of the filtered ACRAS message to obtain an effective ACARS message. The data is preprocessed, decoded and checked by utilizing an air-ground data link message parameter identification technology, the connotation and the extension of message data decoding are expanded, error codes caused by transmission errors and human factors can be effectively solved, the accuracy and the integrity of the air-ground data are further improved, and the adaptability and the expansibility of message parameter decoding are enhanced.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:

fig. 1 is a schematic flowchart of an ACARS message identification method according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an ACARS message identification apparatus according to a second embodiment of the present invention;

fig. 3 is a schematic structural diagram of a server according to a third embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

Example one

Fig. 1 is a schematic flow chart of an ACARS message identification method according to an embodiment of the present invention, which is applicable to the case of identifying an ACARS message, and is particularly applicable to the case of information loss and delay caused by communication conditions. The method can be executed by an ACARS message identification device, and the device can be realized in a software/hardware mode. The method can be integrated in an ACARS message identification system server, and specifically comprises the following steps:

s110, receiving the ACARS message.

The downlink of the ACARS data is to receive a downlink message sent from an airplane through a ground communication base station and transmit the downlink message to a data processing center of an air-ground data chain service provider, a central processing unit converts the message from an air-ground data format to a ground communication format, then the message is sent to a ground processing system of an airline company through a ground communication network, and the processed message is finally transmitted to each display terminal of a company computer workstation. In this embodiment, the ACARS message is received by the ground communication base station.

And S120, filtering the received ACRAS message to ensure the completeness of the filtered ACRAS message.

Due to transmission errors, bursty interference, artifacts, e.g., bit errors, packet loss, etc., of the data communication network during transmission of the message. Therefore, not all the received ACRAS messages have corresponding information. Therefore, in this embodiment, the received ACRAS packet needs to be filtered, so as to ensure that the filtered ACRAS packet is complete. Thereby obtaining accurate information.

Illustratively, the filtering the received ACRAS packet includes: and determining whether the ACARS message is qualified or not according to the length range of the received ACARS message. As the ACARS message also meets the corresponding specification, the ACARS message can be judged according to the length range, and then the incomplete ACARS message is screened.

The ACARS messages have more types, including 110 types, and are divided into uplink messages and downlink messages, when air-ground data communication is performed, messages issued by airplanes conform to an ARINC618 format, and the basic structure of the ACARS messages is composed of four parts, namely a header, a text, a trailer and a BCS check code. Wherein the header contains a start symbol flag (SOH), a Mode of the character (Mode), an Aircraft Registration number (Aircraft Registration), a Technical acknowledgement (Technical acknowledgement), a message Label (Label), a flag bit of a link block (DBI/UBI), and an end flag (STX).

The text of the message must be composed of non-control characters in an ISO-5 character set, the length of the message is 220 characters at most, and if the length of the message exceeds 220 characters, the message is divided into a plurality of reports to be transmitted.

Therefore, whether the ACARS message is qualified or not can be determined according to the length range of the received ACARS message.

The frame data is an error frame when the message appears beyond the range specified in the ISO-5 standard. And continuously reading the data, and repeatedly judging until the message is finished.

After the filtration, a second filtration can be performed. Namely filtering the ACRAS message frame with incomplete data.

Illustratively, the presence of the stop bit may be determined by determining whether the stop bit is present, or may be combined with the last data frame. And determining the ACARS message as an ACRAS message frame with complete data.

S130, extracting key information of the filtered ACRAS message to obtain an effective ACARS message.

And decoding according to technical requirements to analyze information such as a target flight number, a tail label, a position, a navigational speed and the like in the ACARS message. The feature extraction is used to obtain data information with a specific format, and here, taking actually received ACARS data information as an example: B-6899141M64A3U8887PRESENT POSITION REPORT

DMY 19DEC17,UTC 072953,LAT N 39.156,LON E116.408,CAS 289,WD 29413,WS

Effective information which can be extracted according to the characteristic values comprises UTC time information, longitude and latitude information, navigational speed and the like, and the information has more prominent characteristics, such as LAT N39.156 and LON E116.408, after ACARS data frame information is received, the longitude and latitude information can be obtained by circularly detecting the characteristic values LAT N and LON E, and UTC time information and navigational speed can be obtained in the same way.

Correspondingly, in this embodiment, the key information extraction is performed on the filtered ACRAS packet to obtain the effective ACARS packet, and different types of data formats can be analyzed according to the Label field of the ACARS packet, and the key information is extracted according to the data placement.

The template analysis mode is mainly to process the ACARS data information with a fixed data format for analysis processing, the analysis is based on ARINC618 protocol, different types of data formats are analyzed according to Label fields of the ACARS information, and in RINC620-2007 standard, data analysis is also carried out in the actual protocol analysis process.

For example, according to the data information corresponding to the QQ field, a corresponding data structure is formed, and the structure form is as follows:

the process of analyzing the QQ field information is to write the code stream of the QQ field into the QQ _ MSG structure.

So as to realize data analysis according to the actual protocol. By the mode, the purpose of reading effective information from the message can be achieved.

The embodiment receives the ACARS message; filtering the received ACRAS message to ensure the completeness of the filtered ACRAS message; and extracting key information of the filtered ACRAS message to obtain an effective ACARS message. The data is preprocessed, decoded and checked by utilizing an air-ground data link message parameter identification technology, the connotation and the extension of message data decoding are expanded, error codes caused by transmission errors and human factors can be effectively solved, the accuracy and the integrity of the air-ground data are further improved, and the adaptability and the expansibility of message parameter decoding are enhanced.

In a preferred embodiment of this embodiment, the method may further include the following steps: and checking the filtered message to ensure that the filtered message is complete and has no errors. The verifying the filtered message may include: checking the filtered message according to a preset check bit; and/or checking according to the format, the attribute and the range of the message parameters. The checking mode adopted by the ACARS data information is also 16-bit CRC, and whether the ACARS data information is complete and credible can be checked by using the CRC. The protocol standardizes the standard format of the message parameters, so that different message parameters have fixed format, attribute and range. By utilizing the characteristic, whether the analysis parameter is correct can be judged by comparing the effective range, the expression format and the attribute of the parameter, so that the aim of checking is fulfilled. For example: the standard format of the time in the ACARS message is DDMMMYY, wherein DD represents the date and is represented by two characters, the range is 00-31, MMM represents the month and is represented by three characters, and the range is one of JAN, FEB, MAR, APR, MAY, JUN, JUL, AUG, SEP, OCT, NOV and DEC; YY represents the year and is represented by two characters, and the range is 00-99. In the process of checking, the analyzed time parameters are compared with the format, and when the format is abnormal, manual intervention is introduced for confirmation in modes of alarming and the like, so that the ACARS data information is real and credible.

Example two

Fig. 2 is a schematic structural diagram of an ACARS message identification apparatus according to a second embodiment of the present invention, where as shown in fig. 2, the apparatus includes:

a receiving module 210, configured to receive an ACARS message;

the filtering module 220 is configured to filter the received ACRAS packet to ensure that the filtered ACRAS packet is complete;

the extracting module 230 is configured to extract key information of the filtered ACRAS message to obtain an effective ACARS message.

The ACARS message identification apparatus provided in this embodiment receives an ACARS message; filtering the received ACRAS message to ensure the completeness of the filtered ACRAS message; and extracting key information of the filtered ACRAS message to obtain an effective ACARS message. The data is preprocessed, decoded and checked by utilizing an air-ground data link message parameter identification technology, the connotation and the extension of message data decoding are expanded, error codes caused by transmission errors and human factors can be effectively solved, the accuracy and the integrity of the air-ground data are further improved, and the adaptability and the expansibility of message parameter decoding are enhanced.

On the basis of the above embodiments, the filtering module includes:

On the basis of the above embodiments, the filtering module further includes:

on the basis of the foregoing embodiments, the calculation module is configured to:

On the basis of the above embodiments, the extraction module includes:

On the basis of the above embodiments, the apparatus further includes:

On the basis of the foregoing embodiments, the verification module is configured to:

checking the filtered message according to a preset check bit; and/or

The ACARS message identification device provided by the embodiment of the invention can execute the ACARS message identification method provided by any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the execution method.

EXAMPLE III

Fig. 3 is a schematic structural diagram of a server according to a third embodiment of the present invention. FIG. 3 illustrates a block diagram of an exemplary server 12 suitable for use in implementing embodiments of the present invention. The server 12 shown in fig. 3 is only an example, and should not bring any limitation to the function and the scope of use of the embodiment of the present invention.

As shown in FIG. 3, the server 12 is in the form of a general purpose computing device. The components of the server 12 may include, but are not limited to: one or more processors or processing units 16, a system memory 28, and a bus 18 that couples various system components including the system memory 28 and the processing unit 16.

Bus 18 represents one or more of any of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, and a processor or local bus using any of a variety of bus architectures. By way of example, such architectures include, but are not limited to, Industry Standard Architecture (ISA) bus, micro-channel architecture (MAC) bus, enhanced ISA bus, Video Electronics Standards Association (VESA) local bus, and Peripheral Component Interconnect (PCI) bus.

The server 12 typically includes a variety of computer system readable media. Such media may be any available media that is accessible by server 12 and includes both volatile and nonvolatile media, removable and non-removable media.

The system memory 28 may include computer system readable media in the form of volatile memory, such as Random Access Memory (RAM)30 and/or cache memory 32. The server 12 may further include other removable/non-removable, volatile/nonvolatile computer system storage media. By way of example only, storage system 34 may be used to read from and write to non-removable, nonvolatile magnetic media (not shown in FIG. 3, and commonly referred to as a "hard drive"). Although not shown in FIG. 3, a magnetic disk drive for reading from and writing to a removable, nonvolatile magnetic disk (e.g., a "floppy disk") and an optical disk drive for reading from or writing to a removable, nonvolatile optical disk (e.g., a CD-ROM, DVD-ROM, or other optical media) may be provided. In these cases, each drive may be connected to bus 18 by one or more data media interfaces. Memory 28 may include at least one program product having a set (e.g., at least one) of program modules that are configured to carry out the functions of embodiments of the invention.

A program/utility 40 having a set (at least one) of program modules 42 may be stored, for example, in memory 28, such program modules 42 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each of which examples or some combination thereof may comprise an implementation of a network environment. Program modules 42 generally carry out the functions and/or methodologies of the described embodiments of the invention.

The server 12 may also communicate with one or more external devices 14 (e.g., keyboard, pointing device, display 24, etc.), with one or more devices that enable a user to interact with the device/server 12, and/or with any devices (e.g., network card, modem, etc.) that enable the server 12 to communicate with one or more other computing devices. Such communication may be through an input/output (I/O) interface 22. Also, the server 12 may communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the Internet) via the network adapter 20. As shown, the network adapter 20 communicates with the other modules of the server 12 via the bus 18. It should be understood that although not shown in the figures, other hardware and/or software modules may be used in conjunction with the server 12, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems, among others.

The processing unit 16 executes various functional applications and data processing, such as implementing the ACARS message identification method provided by the embodiment of the present invention, by running a program stored in the system memory 28.

Example four

The fourth embodiment of the present invention further provides a storage medium containing computer-executable instructions, where the computer-executable instructions are executed by a computer processor to perform the ACARS message identification method provided in the foregoing embodiments.

Computer storage media for embodiments of the invention may employ any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.

A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.

Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

Computer program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. An ACARS message identification method, comprising:

receiving an ACARS message;

2. The method of claim 1, wherein the filtering the received ACRAS messages comprises:

3. The method of claim 2, wherein the filtering the received ACRAS messages further comprises:

and filtering the ACRAS message frame with incomplete data.

4. The method of claim 1, wherein the extracting key information from the filtered ACRAS message to obtain an effective ACARS message comprises:

5. The method of claim 1, wherein the extracting key information from the filtered ACRAS message to obtain an effective ACARS message comprises:

6. The method of claim 1, further comprising:

7. The method of claim 6, wherein the verifying the filtered message comprises:

checking the filtered message according to a preset check bit; and/or

8. An ACARS message recognition apparatus, comprising:

the receiving module is used for receiving the ACARS message;

9. A server, characterized in that the server comprises:

one or more processors;

a storage device for storing one or more programs,

when executed by the one or more processors, cause the one or more processors to implement the ACARS message identification method of any one of claims 1-7.

10. A storage medium containing computer executable instructions for performing the ACARS message identification method of any one of claims 1-7 when executed by a computer processor.