CN1252448C - Long distance diagnosis real time tracking system and method thereof - Google Patents

Abstract

The invention relates to a real-time tracking system for aircraft remote diagnosis, which includes an ACARS message ground receiving terminal for receiving ACARS messages forwarded from the SITA network control center and the ADCC network control center, including an ACARS message decoder, and an operation logic center The intermediate server of the software program and the database server used to save the ACARS messages decoded by the ACARS message decoder, the electronic documents of the aircraft fault codes, and the database server used for the system to receive user instructions and display various decoded ACARS messages and User terminal for failure alarm. Its technical effect is that the aircraft failure alarm, the engineer's analysis and judgment of the failure, and the formulation of the troubleshooting plan are all completed quickly and in real time with the participation of the computer. The engineers at the headquarters can learn about the aircraft earlier than the staff at the terminal. The fault information is accurate to the fault code, which eliminates the difficulty of troubleshooting caused by the difference between the oral description and the other party's understanding of the same fault, and creates positive conditions for the elimination of emergency faults.

Description

A real-time tracking system and method for aircraft remote diagnosis

technical field

The invention relates to a remote diagnosis system, in particular to an aircraft remote diagnosis real-time tracking system and its method for real-time monitoring of aircraft and engine operating states, timely detection of faults or hidden dangers and warning of faults.

Background technique

The flight safety of an aircraft not only depends on the correct operation of the pilot, but more importantly, depends on the daily maintenance and repair work of the aircraft. In the traditional maintenance work, we have to wait until the plane lands to know the technical condition or failure history of the plane by checking the flight log book, checking the onboard maintenance terminal or decoding the data of the flight data recorder or listening to the crew’s oral report. It is to continue to use the process of post-event diagnosis→planning→implement troubleshooting, and when the aircraft is performing a flight at an outstation, the crew has an emergency that cannot be ruled out. The only way to ask for help from the remote crew is by telephone or fax. The difference between the verbal failure description of the crew and the understanding of the maintenance personnel caused additional difficulties for troubleshooting. The shortcomings of traditional maintenance are: (1) Ground maintenance personnel and other relevant departments cannot obtain real-time fault information of the aircraft in time, resulting in the inability to control the occurrence of flight accidents in time. (2) Because the aircraft technical status and failure information obtained by the ground maintenance personnel is not timely and comprehensive, and also limited by the level and experience of the maintenance personnel, sometimes the troubleshooting plan is not accurate enough and it is difficult to detect potential safety hazards early. The quality and level of maintenance is difficult to improve. (3) Maintenance costs remain high. Practice has proved that a large amount of maintenance costs come from non-routine work in the aircraft maintenance process. In a usual routine inspection, the non-routine work is as high as 40% of the overall maintenance amount.

Because of its suddenness, it is often impossible to arrange the work plan in advance, which is in conflict with the requirement to complete the maintenance work in a short time. The traditional maintenance method cannot control the non-routine workload because it cannot understand the status of the aircraft in advance. It will often lead to an increase in the cost of ordering aviation materials, and even cause the aircraft to be parked due to lack of parts, increasing the maintenance cost of the airline. (4) Inaccurate judgment of aircraft failure will increase work intensity, prolong maintenance time, and easily cause delays in flight departure time. (5) Due to the above-mentioned defects, airlines cannot avoid flight delays caused by maintenance, which creates great obstacles for airlines to further improve service quality and level.

In addition, as the only power system on the aircraft, the engine has its own uniqueness in engineering. In order to grasp the long-term technical status of the engine, the airline has a complete set of independent monitoring systems and procedures, and samples the data of each aircraft engine on a daily basis. Input the data into the monitoring program and establish the engine technical file. Generally, engine manufacturers will provide some engine data analysis software to airlines. Engine monitoring personnel need to regularly download engine sampling data from the aircraft, and input the sampling point data into the monitoring software to realize monitoring and analysis.

The workload is heavy and the information lags behind.

At present, the airborne equipment already has the flight information message system (Aircraft Communication Addressing and Reporting System, abbreviated as ACARS), which can transmit flight data in real time. The system is a specific computer, and other computer systems of airborne equipment such as Data Management Unit (DMU), Flight Data Interface Unit (FDIU), Aircraft Status Monitoring System (ACMS), and Global Positioning System (GPS) are related to it crosslinking. The above-mentioned various computer systems are responsible for collecting or collecting the online data and flight latitude and longitude of the aircraft 5, and then broadcast these data to ACARS. 2 Send to the designated ground data control center - flight data control center network 3 (referred to as ADCC network), and ADCC will pass the data through the global air transport information telecommunication network (referred to as SITA network) or ADCC network according to the logo of the message header It is transmitted to the ACARS message receiving workstation 4 on the ground of the designated airline (refer to FIG. 1 ). The ACARS system is a two-way system, which not only transmits real-time aircraft data to the ground, but also transmits data from the ground to aircraft flying in the air, notifying the crew of some important information, such as local weather data, emergency troubleshooting measures in the air, etc. By using the data downloaded by ACARS, airlines can know when the plane takes off, when it arrives, and even know the interval between the closing of the cabin door and the departure of the plane, so as to grasp the delay of the flight; by analyzing the ACARS fault report, the operation can be grasped in real time The technical status of the airborne equipment; track the real-time position of the aircraft by analyzing the ACARS position report, and provide important reference information when opening up new routes. Although the emergence of ACARS has improved the status of information sources for traditional aircraft maintenance, because the information it transmits is a computer language, it is generally difficult for non-computer professionals to understand it, which makes the application of ACARS information difficult. It is very limited. It needs to be translated by computer technicians first, and then manually processed by the maintenance personnel. This not only has the problem of deviation in the understanding of different professional and technical personnel, but also has the limitation of the level and experience of the maintenance personnel and the gap between the front and rear links. The connection problem makes it difficult to warn of flight failures in a timely and accurate manner. Therefore, at present, ACARS information is only transmitted to the ACARS message receiving workstation of the airline company, and has not been widely used.

Contents of the invention

The first object of the present invention is to provide a real-time tracking system and method for aircraft remote diagnosis and real-time tracking of aircraft that utilizes ACARS technology to monitor aircraft operating status and issue fault warnings by receiving and converting air-ground data link downlink data.

The second purpose of the present invention is to further provide a method of collecting fault information from various aspects such as pilots, maintenance personnel, ACARS, and safety monitoring departments, and compiling it into trouble-shooting experience, and providing conclusive references to maintenance personnel through artificial intelligence algorithm analysis. The aircraft remote diagnosis real-time tracking system and its method assist in improving the maintenance level and troubleshooting efficiency.

The third purpose of the present invention is to provide real-time data to other existing ground aircraft monitoring systems, automatically complete the transmission of engine monitoring data to maintenance engineering management and decision-making departments, reduce human errors, reduce labor costs, and improve work efficiency. Aircraft remote diagnosis Real-time tracking system and method thereof.

First object of the present invention can be realized by following technical measure: by the aircraft remote diagnosis real-time tracking system (ACRDRTS for short) will receive the message decoding of the airline ground ACARS message receiving workstation and broadcast to the remote terminal, simultaneously Establish hyperlinks with aircraft fault codes, so that end users can obtain information on aircraft operating status and fault warnings in real time:

Aircraft remote diagnosis real-time tracking system includes:

1. Intermediate server

It includes ACARS message decoder (MessageDecoder), operation logic middleware program, wherein ACARS message decoder and operation logic middleware program interact with the database server at the same time; ACARS message decoder is responsible for receiving ACARS message ground receiving airline ground The ACARS message receives the original message of the workstation, decodes it and saves it in the database; the operation logic middleware program is used to perform logic operations on the information of the message and the aircraft fault code in the database to diagnose the fault.

2. Database server (ORACLE)

It is installed with ORACLE database software, which is used to save the ACARS messages decoded by the ACARS message decoder and electronic documents of aircraft fault codes.

3. User terminal

The remote terminal module is stored in the user terminal, which is composed of the interface of the application program and the server component, wherein the interface of the application program is a man-machine interface for the interaction between the user and the system, such as displaying the real-time position and technical data of the aircraft , fault warning, etc.; the server component part is used to carry out logical operations on the user's actions on the interface to send user instructions to the database server, and they are always in the servo state. The user terminal is connected to the intermediate server, which is used for the system to receive user instructions and display various decoded ACARS messages and fault alarms. The server component is installed on the intermediate server, and the application program interface module can be installed on any personal computer in the common sense.

The core part of the present invention is an intermediate server, which directly interacts with end users and database servers, is responsible for processing complex user requests and computing data read from the database, and pushes computing results to end users, it is the end user and the center A bridge between data sources.

The ACARS message decoder is a decoding program for decoding ACARS original messages written according to the ACARS data specification provided by the ACARS equipment supplier.

The electronic document of the aircraft fault code is the electronic document data of the aircraft fault isolation manual provided by the aircraft manufacturer to the airline.

The warning information of the system client can include visual warning and voice warning information.

The terminal user groups are aircraft maintenance engineers and airline staff. The distribution of user groups is determined by the distribution of airline fleets and terminals, and both domestic and foreign terminals can use this system.

Aircraft remote diagnosis real-time tracking method:

(1) Receive the original message of the ACARS message receiving workstation on the ground of the airline through the ACARS message decoder in the intermediate server;

(2) The received ACARS original message is decoded by the ACARS message decoder, and the original message is translated;

(3) storing the decoded data in the database according to their classification;

(4) Compare the data in (3) with the aircraft fault code to diagnose whether there is a fault;

(5) Broadcast the decoded and compared simple message information to all online users, and send a warning message if there is a fault.

(6) After receiving the ACARS message information on the user terminal, the terminal user operates the concerned message information and enters the database to extract the message content.

Object of the present invention can also be further perfected:

In order to adapt to some occasions that require relatively high accuracy of aircraft latitude and longitude, such as air traffic control departments.

Add ESRI's vector map technology to the client application program - embed the MAPOBJECT object (vector map control) in the client application program to implement embedded programming solutions, and use the ACREDIT software (edit vector map) provided by ESRI map development tool), adding airline customized map data to the existing vector map, such as great circle routes, waypoints, navigation points, etc., can dynamically display flight altitude, flight track, flight direction, waypoints, etc. Flight information, and allows users with different needs to download vector map data of different regions and layers.

The vector map data may be a vector map purchased from the National Geographic Survey and Mapping Service.

In order to meet the two-way communication requirements between the ground personnel and the flight crew, we can enable the original message upload function of the ACARS workstation in ACRDRTS: the information that the ground engineer needs to upload forms a text information stream, including real-time troubleshooting measures, Landing airport meteorological information, etc., is input through the user terminal, and then transmitted by the intermediate server to the upload address specified by the ACARS workstation, and the ACARS ground workstation completes the uploading of the information—that is, it is transmitted to the flying aircraft.

The second object of the present invention can be realized on the basis of the technical embodiment of the first object of the present invention, that is, the aircraft remote diagnosis real-time tracking system includes:

1. Intermediate server

An intermediate server storing an ACARS message decoder and an operation logic middleware program, wherein the operation logic middleware program is used to carry out logical operations on message information and aircraft fault codes in the database to diagnose faults, and is also used to Fault code hyperlinks are selected to access the aircraft fault isolation manual in the database server, or the aircraft fault history experience library.

2. The database server used to save the ACARS message decoded by the ACARS message decoder and the electronic document of the aircraft fault code. In addition, the system also has an expert troubleshooting support system (STSS), which includes a fault history experience Library and troubleshooting history experience processing module, while the database server provides the content of the fault isolation manual, it also provides the troubleshooting history and troubleshooting experience knowledge of the same fault; this module can complete the troubleshooting history record with the participation of aircraft maintenance engineers AI-categorized calculations are performed to provide conclusive troubleshooting recommendations to aircraft maintenance engineers.

3. User terminal with remote terminal module

The fault history experience database is a collection of troubleshooting experience through the collection of fault information from pilots, maintenance personnel, ACARS and safety monitoring departments.

The electronic document of the aircraft fault code is the electronic document data of the aircraft fault isolation manual.

The method in the second object of the present invention realizes on the basis of the first object aircraft remote diagnosis real-time tracking method of the present invention:

(1) Receive the original message of the ACARS message receiving workstation on the ground of the airline through the ACARS message decoder in the intermediate server;

(2) The received ACARS original message is decoded by the ACARS message decoder, and the original message is translated;

(3) storing the decoded data in the database according to their classification;

(4) Compare the data in (3) with the aircraft fault code to diagnose whether there is a fault;

(5) Broadcast the decoded and compared simple message information to all online users, and send a warning message if there is a fault.

(6) After the terminal user checks the ACARS message information displayed on the user terminal, the concerned message information is operated and entered into the database to extract the message content.

(7) When there is an on-board fault information warning, the aircraft maintenance engineer chooses to access the database server according to the different hyperlinks on the fault code:

① Aircraft Fault Isolation Manual, showing the troubleshooting methods provided by the aircraft manufacturer for the diagnosed fault information;

②Aircraft failure historical experience database, for the diagnosed failure information, it displays all the historical experience processing for this kind of failure, and performs artificial intelligence classification calculations, so as to provide conclusive troubleshooting suggestions.

The aircraft maintenance engineer formulates a troubleshooting plan based on the troubleshooting suggestions provided by the system and the fault isolation plan.

(8) When there is no on-board fault information warning, the aircraft maintenance engineer can also directly access the aircraft fault isolation manual machine and fault history experience database in the database server to obtain relevant knowledge.

The above technical solution of the present invention not only decodes the received ACARS message, diagnoses the fault and broadcasts it to the remote terminal, so that the end user can obtain the information of the aircraft operating status and fault warning in real time, it also establishes an electronic document for aircraft technical support The system includes the manuals directly related to aircraft troubleshooting and the troubleshooting historical experience database established by airlines with accumulated experience in aircraft maintenance, which is the extended export of enterprise central resources.

The third object of the present invention can be accomplished on the basis of the first object of the present invention: promptly the aircraft remote diagnosis real-time tracking system comprises:

1. Intermediate server

Including ACARS message decoder (MessageDecoder), operation logic middleware program; it also has engine message real-time monitoring conversion system, which includes engine message converter, engine monitoring system (SAGE) interface, wherein, the engine message converter is used To automatically complete the reception of ACARS engine messages and convert them into a format that can be recognized by the engine monitoring software (SAGE), and provide real-time ACARS engine reports to the engine monitoring system (SAGE); the interface of the engine monitoring system is obtained from the engine message converter The required *.SGE message provides input files for the engine monitoring software (SAGE) to generate engine performance trend analysis graphs.

2. The database server used to save the ACARS messages decoded by the ACARS message decoder and electronic documents of aircraft fault codes, and it is also used to save the ACARS engine message information of the engine message real-time monitoring conversion system;

3. User terminal with remote terminal module

The third object of the present invention can be accomplished on the basis of the second object of the present invention, that is, the aircraft remote diagnosis real-time tracking system includes:

1. Intermediate server

An intermediate server storing an ACARS message decoder and an operation logic middleware program, wherein the operation logic middleware program is used to carry out logical operations on message information and aircraft fault codes in the database to diagnose faults, and is also used to Fault code hyperlinks are selected to access the aircraft fault isolation manual in the database server, or the aircraft fault history experience library.

It also has an engine message real-time monitoring conversion system, which includes an engine message converter and an engine monitoring system (SAGE) interface, wherein the engine message converter is used to automatically complete the reception of ACARS engine messages and convert them into engine monitoring software ( SAGE) can recognize the format, and provide real-time ACARS engine report to the engine monitoring system (SAGE); the engine monitoring system interface obtains the required *.SGE message from the engine message converter, and provides the engine monitoring software (SAGE) Provide the input file and generate the performance trend analysis graph of the engine.

2. It is used to save the ACARS message decoded by the ACARS message decoder, the electronic document of the aircraft fault code and the database server of the fault history experience database. It is also used to save the ACARS engine report of the engine message real-time monitoring conversion system. text information.

3. User terminal with remote terminal module

The engine message converter is the core of the engine message real-time monitoring and conversion system, and it is mainly composed of three modules: network communication, message conversion, and engine parameter warning. Their various functions are as follows:

①Network communication: Receive aircraft engine messages in real time.

②Message conversion: convert engine messages into readable text format and engine performance monitoring software (SAGE) readable format, provide input interface for engine performance monitoring software, and achieve real-time conversion function.

③Engine parameter warning: According to the limit value of the engine performance monitoring parameters, an engine warning message is generated. The engine parameter warning can be realized by manually setting the upper (lower) limit of the parameter.

The method in the third purpose of the present invention is realized on the basis of the first and second purpose aircraft remote diagnosis and real-time tracking methods of the present invention:

(1) Receive the original message of the ACARS message receiving workstation on the ground of the airline through the ACARS message decoder in the intermediate server, including the original message of the aircraft engine in the original message;

(2) Decoding the ACARS original message through the ACARS message decoder in the aircraft remote diagnosis real-time tracking system, and translating the original message; translating the aircraft engine original message through the engine message real-time monitoring conversion system.

(3) The data classification after decoding in the previous step is stored in the database;

(4) Compare the data in (3) with the aircraft fault code to diagnose whether there is a fault;

(5) Broadcast the decoded and compared simple message information to all online users, and send a warning message if there is a fault.

(6) After the terminal user checks the ACARS message information displayed on the user terminal, the concerned message information is operated and entered into the database to extract the message content.

(7) When there is an on-board and engine failure information warning, the aircraft maintenance engineer chooses to access the database server according to the different hyperlinks on the failure code:

① Aircraft Fault Isolation Manual, showing the troubleshooting methods provided by the aircraft manufacturer for the diagnosed fault information;

②Aircraft failure historical experience database, for the diagnosed failure information, it displays all the historical experience processing for this kind of failure, and performs artificial intelligence classification calculations, so as to provide conclusive troubleshooting suggestions.

The aircraft maintenance engineer formulates a troubleshooting plan based on the troubleshooting suggestions provided by the system and the fault isolation plan.

(8) When there is no on-board fault information warning, the aircraft maintenance engineer can also directly access the aircraft fault isolation manual machine and fault history experience database in the database server to obtain relevant knowledge.

The above technical scheme enables the engine messages of various stages to be captured by the system during the flight of the aircraft and automatically transmitted to the engine monitoring system, which not only cancels the operation of manually downloading data, but also realizes the purpose of real-time monitoring , making it possible to grasp the technical parameters of the engine at various stages during the flight in real time.

The beneficial effects of the present invention are:

(1) The security gate is moved forward. The present invention can timely and accurately translate the real-time technical information of any aircraft on the route collected by ACARS, and send fault warnings to the user machine in time, which is conducive to timely processing of emergency situations and reduces the occurrence of flight accidents. For non-emergency faults Warnings create active conditions for ground maintenance, making it easier for ground engineers to make accurate judgments according to the fault isolation manual and give accurate troubleshooting solutions in a timely manner.

(2) Minimize flight delays as much as possible. Because the present invention can capture the fault information of airborne equipment in real time, before the plane lands, the ground personnel can prepare the tools, equipment, aviation materials and manpower according to the planned troubleshooting plan, which greatly reduces the number of problems after the plane lands. ground maintenance time, thereby minimizing flight delays or cancellations.

(3) Provide remote technical support. It can effectively solve the problem that it is difficult to accurately analyze and judge the fault due to the difference between the verbal fault description of the crew and the understanding of the maintenance personnel when the aircraft fails to be eliminated by the crew at the outstation, so that the remote maintenance personnel can still accurately understand the fault situation Provide appropriate troubleshooting solutions in time to ensure the safety and airworthiness of the aircraft.

(4) It has an expert technical support database, which can provide sufficient opinions for fast and accurate troubleshooting, and improve maintenance level and troubleshooting efficiency. The aircraft troubleshooting expert system in the system of the present invention can integrate the engineer’s troubleshooting wisdom on the basis of troubleshooting records, extract relevant knowledge, apply artificial intelligence to calculate troubleshooting expert suggestions, and provide help for troubleshooting, and can press multiple Inquiring about troubleshooting experience in this way provides great help to airlines in quickly and accurately judging faults.

(5) Real-time tracking of engine performance can be carried out. The real-time monitoring and converting system of the engine message added by the invention can enable the monitoring personnel to grasp the technical parameters of the engine in each flight stage in time, and reduce the hidden danger of flight safety caused by the deviation of the technical performance of the engine to the greatest extent possible.

(6) The monitoring of fault history is conducive to early detection of aircraft hidden dangers. Utilizing the database of the invention, the failure history of a certain type of aircraft on any route can be viewed at any time, which is very convenient as a person operating an airborne maintenance terminal in the cockpit of an aircraft.

(7) It can effectively reduce aircraft maintenance costs. According to the survey results of the Air Transport Association (ATA) in the air transport industry, controlling the non-routine workload of aircraft maintenance is one of the effective ways to save maintenance costs, and improving maintenance levels and troubleshooting efficiency is one of the ways to save money. Another effective way of maintenance cost, the present invention can realize fault prediction as early as possible, judge fault quickly and accurately, thereby control non-routine workload and improve trouble-shooting efficiency, achieve the purpose of significantly reducing the maintenance cost of aircraft; In addition, the present invention The real-time capture of aircraft engine parameters also reduces the additional maintenance costs paid by manually downloading data.

Comparison table between traditional locomotive maintenance and the present invention Task traditional aircraft maintenance this invention Troubleshooting after flight in the air troubleshooting Handbook and personal experience rule out sending engineers on the ground Electronic manual, electronic experience knowledge base, preparation for remote troubleshooting before landing Reliability Management flight log book Based on onboard maintenance information and flight log books aircraft monitoring Manual data entry accurate to the previous day Accurate and automatic statistics of aircraft use and production data engine monitoring Manually fetch the engine parameter disk every day to analyze the engine status afterwards Remote real-time monitoring of engine air status

Detailed ways

The present invention will be further described below in conjunction with the specific embodiments shown in the accompanying drawings.

Figure 1 is a schematic diagram of the ACARS message transmission mechanism;

If the plane is flying over the Pacific Ocean, ACARS will transmit the data (SETCOM) to the satellite through the satellite communication system, and the satellite will transmit the data to the ADCC network; if the plane is flying over the airport, ACARS will transmit the data to the local very high frequency ground workstation (VHF receiving station), and then transfer the data to the ADCC network.

Fig. 2 is a system data flow chart of one of the embodiments of the present invention;

Fig. 3 is a system operation block diagram of one of the embodiments of the present invention;

Fig. 4 is a block diagram of software operation of one embodiment of the present invention.

The aircraft remote diagnosis real-time tracking system shown in Fig. 2,3,4 is one of embodiment of the present invention, and aircraft remote diagnosis real-time tracking system comprises: ACARS message ground receiving terminal 10, intermediate server 11, database server 12, user terminal 13, of which:

The intermediate server has (1) operation logic middleware program, which is used to ① carry out logical operation on the information of the message and the aircraft fault code in the database to diagnose the fault; ② choose to access the aircraft fault isolation in the database server according to the hyperlink of the fault code or visit the aircraft failure history experience database; (2) engine message real-time monitoring conversion system, which includes an engine message converter and an engine monitoring system (SAGE) interface, wherein the engine message converter is used to automatically complete ACARS engine report Receive and convert the text into a format that can be recognized by the engine monitoring software (SAGE), and provide real-time ACARS engine reports to the engine monitoring system (SAGE); the interface of the engine monitoring system obtains the required *.SGE from the engine message converter The message provides input files for the engine monitoring software (SAGE) to generate engine performance trend analysis graphs.

The engine message converter is the core of the engine message real-time monitoring and conversion system. It is mainly composed of three modules: network communication, message conversion, and engine parameter warning. Their various functions are as follows:

Network communication: Receive aircraft engine messages in real time.

Implementation method: When the system is running, use the UDP communication protocol to send information to the broadcaster of the AMSS system every 30 seconds, telling the broadcaster that the client is running, and when an operating aircraft generates an engine message, receive the forwarded engine from the broadcaster Message information.

Message conversion: convert the engine message into a readable text format and a format readable by the engine performance monitoring software (SAGE), provide an input interface for the engine performance monitoring software, and achieve the function of real-time conversion.

Implementation method: According to the information received by the network communication part, extract the information required by the engine message from the AMSS system database server, and generate various required messages.

Engine parameter warning: Generate engine warning messages according to the limit value of engine performance monitoring parameters.

Implementation method: According to the warning limit value set in the AMSS system database server, read the corresponding data and generate the required warning message.

The database server is used to save the ACARS messages decoded by the ACARS message decoder and electronic documents of aircraft fault codes, and at the same time save the ACARS engine message data of the engine message real-time monitoring conversion system.

The database server includes the main database (ORCALE) 12 and the troubleshooting database (AS400/DB2) 122, which use different host systems respectively. The main database adopts the M80 AIX TDMS host system, and the troubleshooting database adopts the AS400 DB2 GAMECO PMI host system. Wherein, the troubleshooting database host is connected to the main database host, and the main database host is connected to the intermediate server. Since the end user has been inputting the original troubleshooting data into AS400/DB2, and this system uses the main database 12, in order to avoid duplication of data by the end user, we have compiled the original troubleshooting record converter of the troubleshooting expert knowledge base to complete two For automatic data migration between systems, the original troubleshooting record switcher (STSSDataSwitcher) 121 in the troubleshooting expert knowledge base automatically copies the data from the troubleshooting database to the master database.

User terminal:

The remote terminal module is stored, which is composed of the interface of the application program and the server component, and is applicable to all user terminals, including computers used by aircraft maintenance engineers, airline staff, engine performance monitoring analysts and other relevant personnel, etc. .

In order to reduce the "load" of the user's computer system, the user terminal of the present invention stores different terminal software for users with different work priorities:

Airline staff: real-time tracking fault display module (ACARSMAPClient) + troubleshooting expert support system STSS web-side 133 software;

Infield technical support engineer: real-time tracking fault display module (ACARSMAPClient) + troubleshooting expert support system STSS management terminal 133 software;

Engine performance monitoring personnel: engine message real-time monitoring conversion system (ERM: Engine RemoteMonitor), which includes an engine message converter, an engine monitoring system (SAGE) interface, and is used for the user terminal 131 of the engine performance monitoring personnel.

The above-mentioned engine performance monitoring personnel are a relatively independent user group whose work nature is completely different from that of technical support engineers and airline staff. They need to collect engine performance parameters continuously and for a long time, and use the The engine performance monitoring software analyzes and monitors various performance parameters of the engine in order to "prevent problems before they happen". The invention can install the engine message real-time monitoring conversion system on the user's personal computer, directly provide the user with real-time performance parameter messages of each flight stage of the engine, and make it possible to cancel manual downloading of engine parameters after daily flight.

Other relevant personnel: Any one of the above terminal software can be installed on demand.

The described trouble-shooting expert support system STSS is a relatively independent application program, and the original trouble-shooting record converter (STSSDataSwitcher) 121 of the trouble-shooting expert knowledge base is transferred from the trouble-shooting database to the original trouble-shooting record of the main database under the participation of ATA engineers. Therefore, the records are converted into troubleshooting knowledge. In the real-time tracking fault display module (ACARSMAPClient), the troubleshooting knowledge generated by it can be directly invoked, providing a quick reference method for troubleshooting.

When in use, ACARS real-time data first enters the ACARS message receiving ground workstation, and the real-time tracking fault display module (ACARSMAPClient) stored in the user terminal of this system starts UDP (User Datagram Protocol) frame listening, waits for the broadcast information of the system decoder, and decodes The device will broadcast the processing information of the message to each online client. After the real-time tracking fault display module receives the broadcast information, it will immediately transmit the broadcast information (character stream) to the middleware server through the IIOP protocol, and the server component will process the broadcast information. Strictly analyze and process, and distinguish various report types, then read the necessary information from the database, and then form a new character stream, and send it back to the ACARSMAPClient client 132 through the IIOP protocol, and the ACARSMAPClient client displays different information according to different report types. information and correct the position information of the aircraft on the map. If the existence of the fault code is found (that is, the aircraft has a fault), the ACARSMAPClient client will generate warning information, including visual warning and voice warning information. Users can directly access the aircraft fault isolation manual stored in the system and the troubleshooting experience and knowledge of the STSS system according to the different hyperlinks on the fault code, providing aircraft engineers with two troubleshooting methods for reference:

1. Direct access to the fault isolation manual in TDMS

2. Directly refer to the historical experience of troubleshooting in the historical experience database of troubleshooting

Combining the two methods, engineers can quickly formulate a troubleshooting plan. After the aircraft lands, they only need to verify the existence of the fault before troubleshooting.

This system adopts a multi-layer application (distributed computing) system: thin client + middleware + database server. Due to the large and scattered users, the use of multi-layer application solutions can effectively reduce the complexity of system maintenance; the use of middleware technology perfectly realizes the separation of complex business operation logic and user interface logic, and realizes transparent upgrade of the system.

The software system of this system is a set of application software system based on enterprise intranet or urban wide area network, adopts industrial standard communication protocol, and does not add any burden to the network management department.

This system uses mainstream development tools in the IT industry to write different application modules: software module Technical solutions remote terminal module Use JAVA to write the MessageDecoder application program; ACARS remote terminal User terminal interface; server component, published to EAServer, using UDP broadcast protocol intermediate server to establish communication in the remote client segment, dynamically receiving and reading ACARS message data, and assigning ACARS message fault codes to faults in the electronic document system Quarantine manuals create hyperlinks. engine monitoring Use JAVA programming technology, establish communication with database server/intermediate server through JDBC/UDP, dynamically receive and read engine message data and convert its format to engine monitoring software. Expert knowledge base The user terminal interface; the server components are published to EAServer; with the participation of ATA engineers, expert advice is generated from the fault history, and a hyperlink relationship is established with the aircraft fault code.

WEB interface 1. On the remote terminal of ACARS, it is dynamically invoked through the established hyperconnection relationship, so as to read the fault isolation manual and troubleshooting historical experience in the electronic document system. 2. Use Jbuilder to write JSP and publish it to EAServer to realize the general query of ordinary users to the expert knowledge base.

Add vector map technology to display more accurate and richer flight information, such as flight heading, flight route, flight big circle, estimated waypoints, etc.

In order to meet the two-way communication requirements between the ground personnel and the flight crew, we can enable the original message upload function of the ACARS workstation in ACRDRTS: the information that the ground engineer needs to upload forms a text information stream, including real-time troubleshooting measures, Landing airport meteorological information, etc., is input through the user terminal, and then transmitted by the intermediate server to the upload address specified by the ACARS workstation, and the ACARS ground workstation completes the uploading of the information—that is, it is transmitted to the flying aircraft.

The design of the present invention adopts a module structure that has nothing to do with the machine type, and is suitable for connecting modules of different machine types, and the system framework remains unchanged all the time. Since the airborne maintenance terminals of various aircraft are different, this system adds airborne maintenance terminal simulators of various types, and any type of airborne maintenance terminal simulator can be added according to the corresponding technical specifications.

This system can meet the two-way communication requirements between the ground personnel and the flight crew. In this system, the original message upload function of the ACARS workstation is activated: the information that the ground engineer needs to upload is formed into the text information stream input to the system through the user terminal. , including real-time troubleshooting measures, meteorological information at landing airports, etc., and then transmitted by the intermediate server to the upload address specified by the ACARS workstation, and the ACARS ground workstation completes the uploading of the information—that is, the transmission to the flying aircraft.

One of the biggest advantages brought by the present invention is that the aircraft failure alarm, the engineer's analysis and judgment of the failure, and the formulation of the troubleshooting plan are all completed quickly and in real time with the participation of the computer. Knowing the fault information of the aircraft early, and accurate to the fault code, eliminates the difficulty of troubleshooting caused by the difference between the oral description and the other party's understanding of the same fault. With the participation of senior engineers, they can immediately judge the severity of the fault information provided by ACRDRTS, notify the maintenance personnel of the other terminal in advance, and install the remote terminal program (ACARSMAPCLIENT) of ACRDRTS directly on the personal computer of the other terminal to provide Elimination of emergency faults creates positive proactive conditions. You can also start the message upload function of ACRDRTS, and the ground engineer can upload the troubleshooting plan to the flight crew in time.

Claims (10)

1. A real-time tracking system for aircraft remote diagnosis, comprising: (1) The message ground receiving terminal of the flight information message system It is connected with the global air transport information communication network or the flight data control center network, and is used to receive the messages of the flight information message system forwarded from the global air transport information communication network control center and the flight data control center network control center; (2) Intermediate server It includes the message decoder of the flight information message system and the operation logic middleware program, wherein the message decoder and the operation logic middleware program of the flight information message system interact with the database server at the same time; the message of the flight information message system The decoder is responsible for decoding the flight information message read on the ground receiving terminal of the message and storing it in the database; the operation logic middleware program is used to perform logic operations on the information of the message and the aircraft fault code in the database to diagnose the fault ; (3) Database server It is used to save the messages of the flight information message system decoded by the message decoder of the flight information message system and the electronic files of the aircraft fault codes; (4) User terminal The user terminal is connected to the intermediate server, which is used for the system to receive user instructions and display messages and fault alarms of various decoded flight information message systems; a remote terminal module is stored in it, and the module is composed of the interface of the application program and the server component The interface of the application program is used for the interaction window between the user and the system, displaying the real-time position of the aircraft, technical data, fault warning, etc.; the server component part is used to carry out logical operations on the actions of the user on the interface to the The intermediate server sends user instructions, and they are always in the serving state. 2. aircraft remote diagnosis real-time tracking system according to claim 1, is characterized in that the operation logic middleware program of described intermediate server is also used for selecting the aircraft fault isolation manual in the access database server according to the fault code hyperlink, or Aircraft failure history experience storehouse; Described database server is also provided with aircraft failure isolation manual electronic document data and expert trouble-shooting support system, and this system further comprises a failure history experience storehouse, when database server provides fault isolation manual content, also Provide troubleshooting history and troubleshooting experience knowledge for the same fault; and troubleshooting history experience processing module, which can complete the calculation of artificial intelligence classification of troubleshooting history records with the participation of aircraft maintenance engineers, so as to provide aircraft maintenance Engineers provide conclusive troubleshooting recommendations. 3. according to claim 1 and 2 described aircraft remote diagnosis real-time tracking systems, it is characterized in that described intermediate server also has engine message real-time monitoring conversion system, and it comprises engine message converter, engine monitoring system interface, wherein , the engine message converter is used to automatically complete the reception of the engine message of the flight information message system and convert it into a format that the engine monitoring software can recognize, and provide the engine monitoring system with a real-time engine report of the flight information message system; engine monitoring The system interface obtains the required ^* .SGE message from the engine message converter, provides the input file for the engine monitoring software, and generates the performance trend analysis diagram of the engine; the database server is also used to save the real-time monitoring and conversion of the engine message The system's flight information message system's engine message information. 4. The aircraft remote diagnosis real-time tracking system according to claim 3, wherein said database server comprises a troubleshooting database server and a main database server, wherein the troubleshooting database server is an expert troubleshooting support system database server, and the main database The server is used to save the decoded messages of the flight information message system, aircraft fault codes and electronic documents of the aircraft fault isolation manual. The troubleshooting database server is connected to the main database server, and the main database server is connected to the intermediate server. 5. The aircraft remote diagnosis real-time tracking system according to claim 4, wherein the engine message converter is composed of three modules: network communication, message conversion, and engine parameter warning: (1) Network communication: receive aircraft engine messages in real time; (2) Message conversion: convert the engine message into a readable text format and a format readable by the engine performance monitoring software, provide an input interface for the engine performance monitoring software, and achieve the function of real-time conversion; (3) Engine parameter warning: generate an engine warning message according to the limit value of the engine performance monitoring parameter. 6. A real-time tracking method for aircraft remote diagnosis, comprising the following steps: (1) Receive the original message from the airline's flight information message system message receiving workstation on the ground through the message ground receiving terminal of the flight information message system; (2) decode the original message of the flight information message system by the flight information message system message decoder in the aircraft remote diagnosis real-time tracking system, and translate the original message; (3) storing the decoded data in the database according to their classification; (4) Compare the data in (3) with the aircraft fault code to diagnose whether there is a fault; (5) Broadcast the decoded and compared simple message information to all online users, and send a warning message if there is a failure; (6) After the terminal user receives the message information of the flight information message system, the terminal user operates the message information concerned and enters the database to extract the message content. 7. The real-time tracking method for aircraft remote diagnosis according to claim 6, characterized in that the real-time tracking method for aircraft remote diagnosis also includes the (7) step: when there is an on-board fault information warning, the aircraft maintenance engineer according to Different hyperlink selections on the fault code access the database server: ① Aircraft Fault Isolation Manual, showing the troubleshooting methods provided by the aircraft manufacturer for the diagnosed fault information; ②Aircraft failure historical experience database, for the diagnosed failure information, it displays all the historical experience processing for this kind of failure, and performs artificial intelligence classification calculations, so as to provide conclusive troubleshooting suggestions. 8. The real-time tracking method of aircraft remote diagnosis according to claim 7, wherein when there is no on-board fault information warning, the aircraft maintenance engineer can directly access the aircraft fault isolation manual machine and the fault history experience storehouse in the database server to obtain related information. 9. The aircraft remote diagnosis real-time tracking method according to claim 8, wherein: In the (1) step, the original message of the aircraft engine is also received by the real-time monitoring conversion system of the engine message; In step (2), the original message of the aircraft engine is translated by the engine message real-time monitoring conversion system. 10. The real-time tracking method for aircraft remote diagnosis according to claim 8, characterized in that the vector map technology is added to the remote client to dynamically display flight information such as flight altitude, flight track, flight direction, and waypoints, and allow different Users who need to download vector map data of different regions and layers.

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