Real-time monitoring method and system for aircraft flight test based on telemetry technology

Abstract

This invention discloses a method and system for real-time monitoring of aircraft flight tests based on telemetry technology. By utilizing telemetry technology and existing aircraft telemetry data communication networks and links to acquire, monitor, and respond to telemetry data in real time, it enables real-time monitoring of the flight test aircraft by the ground system, even when the aircraft does not have ACARS functionality in the early stages of flight testing. It also facilitates monitoring of multiple aircraft and multiple locations for flight tests, as well as remote monitoring. The method and system for real-time monitoring of aircraft flight tests of this invention also have better reliability and can save significant manpower and other costs.

Description

Technical Field

[0001] This invention relates to the field of aviation, and in particular to a method and system for real-time monitoring of aircraft test flights based on telemetry technology. Background Technology

[0002] Currently, in the aviation field, especially in civil aviation, during the early stages of flight testing of aircraft, particularly new models, the communication systems on these new aircraft may lack ACARS data link routing capabilities or have only a relatively complete set of ACARS data link routing capabilities. Therefore, in the early stages of flight testing, new aircraft often cannot send aircraft status messages to the ground system via the air-to-ground ACARS network. For example, the real-time monitoring and fault diagnosis system (CAPHM) of a large passenger aircraft in the early stages of flight testing may not be able to receive real-time data from the test aircraft via the air-to-ground ACARS network, thus failing to achieve real-time monitoring functionality.

[0003] However, typically, for critical data such as taxiing, takeoff, landing, and fault data, civil aircraft transmit data in real-time to the ground-based CAPHM system via Air-to-Ground Data Link (ACARS) during flight. This allows the CAPHM system to utilize its fault diagnosis and real-time monitoring capabilities, enabling simultaneous monitoring of multiple aircraft. Due to the aforementioned characteristics of aircraft in the early stages of flight testing, the above-mentioned real-time monitoring method is not applicable during the flight testing phase.

[0004] Due to the aforementioned limitations, real-time monitoring of test aircraft during the flight test phase, especially in the early stages, will require a significant amount of manpower and workload for monitoring personnel, resulting in extremely high costs. Furthermore, existing solutions are not only labor-intensive but also inconvenient for simultaneous monitoring of multiple aircraft, particularly for monitoring multiple aircraft in multiple locations or for remote monitoring.

[0005] Therefore, there is an urgent need to provide a new solution for real-time monitoring of test aircraft, in order to at least partially alleviate or eliminate the aforementioned deficiencies of existing technologies. Summary of the Invention

[0006] The technical problem to be solved by this invention is to overcome the deficiency of existing technologies in lacking a solution for real-time monitoring of test aircraft with relatively low manpower costs, and to propose a new method and system for real-time monitoring of aircraft test flights based on telemetry technology.

[0007] The present invention solves the above-mentioned technical problems through the following technical solution:

[0008] This invention provides a real-time monitoring method for aircraft flight tests based on telemetry technology, characterized in that the real-time monitoring method for aircraft flight tests includes:

[0009] Based on the real-time monitoring requirements for the test aircraft and the flight profile that the test aircraft may be in during the test flight mission, the various types of ACARS messages that need to be monitored in real time are determined in advance.

[0010] For each type of ACARS message among the determined multiple types of ACARS messages, its message content, message format, and message triggering logic are determined. The message content includes aircraft message parameters, format parameters, and triggering logic parameters. The message triggering logic is associated with specific parameter values ​​of the triggering logic parameters. The triggering logic parameters are one or more parameters that characterize the aircraft state.

[0011] For the various types of ACARS messages, a message parsing template is set according to its message content and message format. The message parsing template is configured to decode the flight test telemetry data containing the message content of the ACARS message and generate the corresponding ACARS message.

[0012] During the flight test mission, flight test telemetry data is collected in real time from the flight test aircraft via the telemetry data network through the flight test telemetry data server.

[0013] The Aircraft Safety Monitoring System (ASMS) obtains the flight test telemetry data from the flight test telemetry data server and determines whether the flight test telemetry data contains a specific parameter value of the trigger logic parameter in order to determine whether the message trigger logic is satisfied.

[0014] When the message triggering logic is satisfied, the aircraft safety monitoring system transmits the flight test telemetry data to the real-time monitoring and fault diagnosis system (CAPHM), and the CAPHM uses the message parsing template to decode the flight test telemetry data to form the ACARS message.

[0015] According to some embodiments of the present invention, an aircraft safety monitoring system includes a flight status parameter monitoring unit, which is configured to monitor in real time the trigger logic parameters representing the aircraft status contained in the test flight telemetry data, and determine whether the value of the monitored trigger logic parameters satisfies the message trigger logic.

[0016] According to some embodiments of the present invention, the flight status parameter monitoring unit is configured to monitor in real time the trigger logic parameters, which include some or all of the following:

[0017] Longitude, latitude, altitude, brake status, door status, international coordinated time, landing gear system wheel load signals, fuel consumption monitoring signals, etc.

[0018] According to some embodiments of the present invention, the aircraft safety monitoring system transmits the flight test telemetry data to the real-time monitoring and fault diagnosis system via serial communication and Ethernet.

[0019] According to some embodiments of the present invention, the data transmission between the aircraft safety monitoring system and the real-time monitoring and fault diagnosis system is based on the TCP / IP protocol.

[0020] According to some embodiments of the present invention, the multiple types of ACARS messages include OUT messages, OFF messages, ON messages, IN messages, POS messages, DOOR messages, and SLIDE messages.

[0021] According to some embodiments of the present invention, the ACARS message is an ARINC620 format message.

[0022] According to some embodiments of the present invention, the flight test telemetry data adopts the BUFR encoding format, and the ACARS message generated by the aircraft safety monitoring system through decoding adopts the TXT file format.

[0023] This invention also provides a real-time monitoring system for aircraft flight tests based on telemetry technology, characterized in that the real-time monitoring system for aircraft flight tests includes:

[0024] The flight test telemetry data server is configured to collect flight test telemetry data from the flight test aircraft in real time via the telemetry data network during the flight test mission.

[0025] An aircraft safety monitoring system, based on the real-time monitoring requirements of the test flight aircraft and the flight profile the test flight aircraft may be in during the test flight mission, pre-sets each type of ACARS message, its message content, message format, and message triggering logic among multiple types of ACARS messages that need to be monitored in real time. The message content includes aircraft message parameters, format parameters, and triggering logic parameters. The message triggering logic is associated with specific parameter values ​​of the triggering logic parameters, where each triggering logic parameter is one or more parameters characterizing the aircraft's state.

[0026] Furthermore, the aircraft safety monitoring system is also configured to obtain the flight test telemetry data from the flight test telemetry data server, and determine whether the flight test telemetry data contains a specific parameter value of the trigger logic parameter to determine whether the message trigger logic is satisfied. When the message trigger logic is satisfied, the aircraft safety monitoring system can transmit the flight test telemetry data to the real-time monitoring and fault diagnosis system.

[0027] The real-time monitoring and fault diagnosis system has a pre-set message parsing template for the various types of ACARS messages based on their message content and message format. It is configured to use the message parsing template to decode the flight test telemetry data containing the message content of the ACARS message to convert it into the ACARS message.

[0028] According to some embodiments of the present invention, the aircraft safety monitoring system includes a flight status parameter monitoring unit, which is configured to monitor in real time the trigger logic parameters representing the aircraft status contained in the test flight telemetry data, and determine whether the value of the monitored trigger logic parameters satisfies the message trigger logic.

[0029] According to some embodiments of the present invention, the flight status parameter monitoring unit is configured to monitor in real time the trigger logic parameters, which include some or all of the following:

[0030] Longitude, latitude, altitude, brake status, door status, international coordination time, landing gear system wheel load signals, and fuel consumption monitoring signals.

[0031] According to some embodiments of the present invention, the aircraft safety monitoring system transmits the flight test telemetry data to the real-time monitoring and fault diagnosis system via serial communication and Ethernet.

[0032] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of the present invention.

[0033] The positive and progressive effects of this invention are as follows:

[0034] The real-time monitoring method and system for aircraft test flights based on telemetry technology according to the present invention can realize real-time monitoring of the test flight aircraft by the ground system by utilizing telemetry technology and existing aircraft telemetry data communication networks and links to acquire, monitor and respond to telemetry data in real time when the test flight aircraft does not have ACARS functionality in the early stage. It also helps to realize monitoring such as multiple aircraft test flights in multiple locations and remote monitoring, has better reliability and can save a lot of manpower and other costs. Attached Figure Description

[0035] Figure 1The illustration schematically depicts the data communication link between the test aircraft and the ground monitoring system, as well as the communication link by which a civil aircraft transmits data to the ground monitoring system via Aviation Data Communication Corporation (ADCC) under normal circumstances, according to a preferred embodiment of the aircraft test flight real-time monitoring method based on telemetry technology according to the present invention.

[0036] Figure 2 An example of an OUT message of a civil aircraft message template associated with a message parsing template involved in a telemetry-based real-time monitoring method for aircraft flight tests according to a preferred embodiment of the present invention is shown.

[0037] Figure 3 The diagram schematically illustrates an example of the interface of the integrated processor of the Aircraft Safety Monitoring System (ASMS) in the telemetry-based real-time monitoring method for aircraft flight tests according to a preferred embodiment of the present invention. This interface example schematically displays custom (set) parameters, received telemetry data monitored during flight tests, and an example of an ACARS message in TXT file format, decoded and converted. Figure 3 (The right half of the text). Detailed Implementation

[0038] The preferred embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. The following description is exemplary and not intended to limit the present invention. Any other similar situations also fall within the protection scope of the present invention.

[0039] In the following detailed description, directional terms such as "left," "right," "up," "down," "front," and "back" are used with reference to the directions described in the accompanying drawings. Components of embodiments of the invention may be positioned in a variety of different orientations; the directional terms are for illustrative purposes and not limiting.

[0040] In traditional technology, during flight, the aircraft's onboard systems send data to the communication system, and the communication system's CMU generates AOC (OUT, OFF, ON, IN, POS) messages. These ACARS messages are transmitted via VHF communication to a ground-based VHF base station and distributed to users (CAPHM system) by the data service provider (DSP). However, as introduced in the background section, existing technologies cannot provide a comprehensive solution for the flight test monitoring needs of aircraft, especially considering the high manpower costs. Acquiring the data and information contained in ACARS messages is crucial for real-time monitoring during flight test.

[0041] To this end, the aircraft flight test real-time monitoring solution based on telemetry technology according to the following preferred embodiments of the present invention, as a whole, achieves the availability of telemetry data for real-time monitoring of flight test aircraft by appropriately monitoring and converting telemetry data using software, providing support and assurance for flight test work, especially for new aircraft models, and achieving relatively low cost compared to existing technologies. At the same time, it provides highly reliable data support for fault diagnosis and real-time monitoring module application of CAPHM system.

[0042] refer to Figure 1 As shown, the aircraft flight test real-time monitoring method based on telemetry technology according to the following preferred embodiments of the present invention includes:

[0043] Based on the real-time monitoring requirements for the test aircraft and the flight profile that the test aircraft may be in during the test flight mission, the various types of ACARS messages that need to be monitored in real time are determined in advance.

[0044] For each type of ACARS message among the determined multiple types of ACARS messages, its message content, message format, and message triggering logic are determined. The message content includes aircraft message parameters, format parameters, and triggering logic parameters. The message triggering logic is associated with specific parameter values ​​of the triggering logic parameters. The triggering logic parameters are one or more parameters that characterize the aircraft state.

[0045] For the various types of ACARS messages, a message parsing template is set according to its message content and message format. The message parsing template is configured to decode the flight test telemetry data containing the message content of the ACARS message and generate the corresponding ACARS message.

[0046] During the flight test mission, flight test telemetry data is collected in real time from the flight test aircraft via the telemetry data network through the flight test telemetry data server.

[0047] The Aircraft Safety Monitoring System (ASMS) obtains the flight test telemetry data from the flight test telemetry data server and determines whether the flight test telemetry data contains a specific parameter value of the trigger logic parameter in order to determine whether the message trigger logic is satisfied.

[0048] When the message triggering logic is satisfied, the aircraft safety monitoring system transmits the flight test telemetry data to the real-time monitoring and fault diagnosis system (CAPHM), and the CAPHM uses the message parsing template to decode the flight test telemetry data to form the ACARS message.

[0049] According to a preferred embodiment of the present invention, an aircraft safety monitoring system includes a flight status parameter monitoring unit. The flight status parameter monitoring unit is configured to monitor in real time the trigger logic parameters characterizing the aircraft status contained in the flight test telemetry data, and determine whether the monitored values ​​of the trigger logic parameters satisfy the message trigger logic. Further preferably, the flight status parameter monitoring unit is configured to monitor in real time the trigger logic parameters including some or all of the following: longitude, latitude, altitude, brake status, door status, UTC, landing gear system wheel load signals, and fuel consumption monitoring signals.

[0050] The aircraft flight test real-time monitoring solution based on telemetry technology according to the preferred embodiment of the present invention provides a clear and implementable architecture, from the analysis of telemetry data requirements, to the specific message format, trigger logic definition, and the CAPHM system parsing ACARS messages. This solution can effectively meet the ground system monitoring needs during the flight test of new aircraft models, especially in the early stages of flight testing. Through this solution, aircraft data in a specific format (derived from telemetry data and achievable with the aid of existing telemetry systems and networks) can be converted into ACARS message data, which can then be used for monitoring the aircraft during the early stages of flight testing when data link functionality is unavailable.

[0051] According to a preferred embodiment of the present invention, the aircraft safety monitoring system transmits the flight test telemetry data to the real-time monitoring and fault diagnosis system via serial communication and Ethernet.

[0052] According to a preferred embodiment of the present invention, the data transmission between the aircraft safety monitoring system and the real-time monitoring and fault diagnosis system is based on the TCP / IP protocol.

[0053] According to a preferred embodiment of the present invention, the multiple types of ACARS messages include OUT messages, OFF messages, ON messages, IN messages, POS messages, DOOR messages, and SLIDE messages.

[0054] According to a preferred embodiment of the present invention, the ACARS message is an ARINC620 format message.

[0055] According to a preferred embodiment of the present invention, the flight test telemetry data adopts the BUFR encoding format, and the ACARS message generated by the aircraft safety monitoring system through decoding adopts the TXT file format.

[0056] The method steps described in the above preferred embodiments regarding the pre-determining of multiple types of ACARS messages that need to be monitored in real time, and determining the message content, message format, and message triggering logic for each type of ACARS message, are illustrated below with examples.

[0057] In summary, this part of the methodology can be understood as follows: Based on the possible flight profiles of civil aircraft during flight, the triggering logic of messages is determined. Combined with aircraft monitoring experience, six ACARS message monitoring requirements are proposed for real-time monitoring during civil aircraft test flights. These requirements include the message content, format, and message triggering logic (its definition), forming a requirement definition suitable for software development. The process and approach for requirement definition are as follows:

[0058] 1) Refer to the format of the OOOI report and POS report for operating aircraft;

[0059] 2) Define the required parameters for the OOOI and POS messages of the test flight aircraft (refer to Table 1 below).

[0060] 3) Define a civil aircraft message template for software development (taking OUT message as an example, in...) Figure 2 (A template example is shown in the image)

[0061] Table 1: Parameters in an example of a POS message

[0062]

[0063]

[0064] Regarding the telemetry data transmission architecture and data conversion steps involved in the methods described in the above preferred embodiments, it can be roughly understood that the solution mainly achieves data transmission and data conversion through the following three mutually supportive designs: 1) Flight test telemetry data, used to collect real-time aircraft parameters and serve as a data input source; 2) The integrated processor (ASMS) triggers, for example, seven different ARINC620 format messages (Note: OUT (exit message), OFF (takeoff message), ON (landing message), IN (push-in message), POS (position message), DOOR (door message), SLIDE (taxi message)) to be transmitted to the ground system CAPHM through the data collected by the aircraft telemetry; the ground system (CAPHM) is used to parse the messages from the integrated processor (ASMS) to achieve real-time monitoring of the flight test aircraft.

[0065] Since flight test telemetry data typically resides on a dedicated server, while the CAPHM system (which can be a customer service company's real-time monitoring and fault diagnosis system) is an external network system, the software of the Aircraft Safety Monitoring System (ASMS) in the above solution is designed to read telemetry server data in real time during aircraft flight, convert the read data into messages in formats such as ARINC620, and finally use CAPHM to parse the messages to achieve real-time monitoring. This data transmission architecture can be referenced as follows: Figure 1 Understanding the content shown. Figure 1 The “CAFTC” and “SACSC” shown refer to the Commercial Aircraft Flight Test Center (COMAC) and the Server of Aircraft Customer Service Center (SACSC), respectively.

[0066] Flight test data generally has high confidentiality requirements. To avoid affecting the collection of aircraft telemetry parameters, specific telemetry parameters are actively read by the Aircraft Safety Monitoring System (ASMS) to prevent any adverse impact on the entire telemetry database. On the other hand, to facilitate the ASMS in generating ARINC620 format messages using software, engineering values ​​can be provided to ASMS first based on the flight test telemetry data.

[0067] The conversion of telemetry data into ACARS messages can be designed to be primarily handled by ASMS software. ASMS software consists of four parts, each residing on one of four computers. To ensure data transmission security, considering the distance limitations between the flight test site and the monitoring center, one part of ASMS resides at the field test station to collect flight test telemetry data; this data is then transmitted to the main manufacturer's monitoring center via the main manufacturer's dedicated network, ensuring data transmission security. Another part of ASMS resides in the main manufacturer's monitoring center, generating ACARS messages in ARINC620 format based on the collected telemetry data, custom parameters, and triggering logic.

[0068] refer to Figure 3 As shown, according to the flight test plan (flight test mission), engineers can manually preset parameters such as Aircraft Number, Airline Number, Flight Number, Depart Date, and Depart Airport in an exemplary interface, as illustrated. The telemetry data format is BUFR encoded, and the encoded data consists of an indication segment, an identifier segment, a data description segment, a data segment, and an end segment. After receiving the telemetry flight data (Longitude, UTC, WOW, Brake Status), PC1 uses the ASMS software to extract the flight data from the data segment according to the BUFR encoding format and integrate it with the preset parameters (e.g., ...). Figure 3 (As illustrated on the right side of the page). Finally, the message is transmitted to the ground real-time monitoring and fault diagnosis system in TXT file format via TCP / IP protocol.

[0069] A preferred embodiment of the present invention also includes a real-time monitoring system for aircraft flight tests based on telemetry technology, the system comprising:

[0070] The flight test telemetry data server is configured to collect flight test telemetry data from the flight test aircraft in real time via the telemetry data network during the flight test mission.

[0071] An aircraft safety monitoring system, based on the real-time monitoring requirements of the test flight aircraft and the flight profile the test flight aircraft may be in during the test flight mission, pre-sets each type of ACARS message, its message content, message format, and message triggering logic among multiple types of ACARS messages that need to be monitored in real time. The message content includes aircraft message parameters, format parameters, and triggering logic parameters. The message triggering logic is associated with specific parameter values ​​of the triggering logic parameters, where each triggering logic parameter is one or more parameters characterizing the aircraft's state.

[0072] Furthermore, the aircraft safety monitoring system is also configured to obtain the flight test telemetry data from the flight test telemetry data server, and determine whether the flight test telemetry data contains a specific parameter value of the trigger logic parameter to determine whether the message trigger logic is satisfied. When the message trigger logic is satisfied, the aircraft safety monitoring system can transmit the flight test telemetry data to the real-time monitoring and fault diagnosis system.

[0073] The real-time monitoring and fault diagnosis system has a pre-set message parsing template for the various types of ACARS messages based on their message content and message format. It is configured to use the message parsing template to decode the flight test telemetry data containing the message content of the ACARS message to convert it into the ACARS message.

[0074] According to a preferred embodiment of the present invention, the aircraft safety monitoring system includes a flight status parameter monitoring unit. The flight status parameter monitoring unit is configured to monitor in real time the trigger logic parameters characterizing the aircraft status contained in the flight test telemetry data, and determine whether the monitored values ​​of the trigger logic parameters satisfy the message trigger logic. More preferably, the flight status parameter monitoring unit is configured to monitor in real time the trigger logic parameters including some or all of the following: longitude, latitude, altitude, brake status, door status, UTC, landing gear system wheel load signals, and fuel consumption monitoring signals.

[0075] Other preferred features of the aircraft flight test real-time monitoring system based on telemetry technology according to the above-described preferred embodiments of the present invention, and the technical effects they can achieve, can be referred to the description and explanation of the embodiments of the aircraft flight test real-time monitoring method based on telemetry technology described above. They will not be repeated here.

[0076] According to the preferred embodiments of the present invention, the real-time monitoring method and system for aircraft test flights based on telemetry technology can achieve real-time monitoring of the test flight aircraft by the ground system by utilizing telemetry technology and existing aircraft telemetry data communication networks and links to acquire, monitor and respond to telemetry data in real time when the test flight aircraft does not have ACARS functionality in the early stages. It also helps to achieve monitoring such as monitoring of multiple aircraft and multiple test flights in different locations and remote monitoring, has better reliability and can save a lot of manpower and other costs.

[0077] While specific embodiments of the present invention have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but all such changes and modifications fall within the scope of protection of the present invention.

Claims

1. A method for real-time monitoring of aircraft flight tests based on telemetry technology, characterized in that, The real-time monitoring method for aircraft test flights includes: Based on the real-time monitoring requirements for the test aircraft and the flight profile that the test aircraft may be in during the test flight mission, the various types of ACARS messages that need to be monitored in real time are determined in advance. For each type of ACARS message among the determined multiple types of ACARS messages, its message content, message format, and message triggering logic are determined. The message content includes aircraft message parameters, format parameters, and triggering logic parameters. The message triggering logic is associated with specific parameter values ​​of the triggering logic parameters. The triggering logic parameters are one or more parameters that characterize the aircraft state. For the various types of ACARS messages, a message parsing template is set according to its message content and message format. The message parsing template is configured to decode the flight test telemetry data containing the message content of the ACARS message and generate the corresponding ACARS message. During the flight test mission, flight test telemetry data is collected in real time from the flight test aircraft via the telemetry data network through the flight test telemetry data server. The aircraft safety monitoring system obtains the flight test telemetry data from the flight test telemetry data server and determines whether the flight test telemetry data contains a specific parameter value of the trigger logic parameter, so as to determine whether the message trigger logic is satisfied. When the message triggering logic is satisfied, the aircraft safety monitoring system transmits the flight test telemetry data to the real-time monitoring and fault diagnosis system, and the real-time monitoring and fault diagnosis system uses the message parsing template to decode the flight test telemetry data to convert it into the ACARS message.

2. The real-time monitoring method for aircraft flight tests based on telemetry technology as described in claim 1, characterized in that, The aircraft safety monitoring system includes a flight status parameter monitoring unit, which is configured to monitor in real time the trigger logic parameters representing the aircraft status contained in the test flight telemetry data, and determine whether the value of the monitored trigger logic parameter satisfies the message trigger logic.

3. The real-time monitoring method for aircraft test flights based on telemetry technology as described in claim 2, characterized in that, The flight status parameter monitoring unit is configured to monitor, in real time, the trigger logic parameters including some or all of the following: Longitude, latitude, altitude, brake status, door status, international coordination time, landing gear system wheel load signals, and fuel consumption monitoring signals.

4. The real-time monitoring method for aircraft flight tests based on telemetry technology as described in claim 1, characterized in that, The aircraft safety monitoring system transmits the flight test telemetry data to the real-time monitoring and fault diagnosis system via serial communication and Ethernet.

5. The real-time monitoring method for aircraft flight tests based on telemetry technology as described in claim 4, characterized in that, Data transmission between the aircraft safety monitoring system and the real-time monitoring and fault diagnosis system is based on the TCP / IP protocol.

6. The real-time monitoring method for aircraft flight tests based on telemetry technology as described in claim 1, characterized in that, The various types of ACARS messages include OUT messages, OFF messages, ON messages, IN messages, POS messages, DOOR messages, and SLIDE messages.

7. The real-time monitoring method for aircraft flight tests based on telemetry technology as described in claim 6, characterized in that, The ACARS message is an ARINC620 format message.

8. The real-time monitoring method for aircraft flight tests based on telemetry technology as described in claim 1, characterized in that, The flight test telemetry data uses the BUFR encoding format, and the ACARS message generated by the aircraft safety monitoring system through decoding uses the TXT file format.

9. A real-time monitoring system for aircraft flight tests based on telemetry technology, characterized in that, The aircraft flight test real-time monitoring system includes: The flight test telemetry data server is configured to collect flight test telemetry data from the flight test aircraft in real time via the telemetry data network during the flight test mission. An aircraft safety monitoring system, based on the real-time monitoring requirements of the test flight aircraft and the flight profile the test flight aircraft may be in during the test flight mission, pre-sets each type of ACARS message, its message content, message format, and message triggering logic among multiple types of ACARS messages that need to be monitored in real time. The message content includes aircraft message parameters, format parameters, and triggering logic parameters. The message triggering logic is associated with specific parameter values ​​of the triggering logic parameters, where each triggering logic parameter is one or more parameters characterizing the aircraft's state. Furthermore, the aircraft safety monitoring system is also configured to obtain the flight test telemetry data from the flight test telemetry data server, and determine whether the flight test telemetry data contains a specific parameter value of the trigger logic parameter to determine whether the message trigger logic is satisfied. When the message trigger logic is satisfied, the aircraft safety monitoring system can transmit the flight test telemetry data to the real-time monitoring and fault diagnosis system. The real-time monitoring and fault diagnosis system has a pre-set message parsing template for the various types of ACARS messages based on their message content and message format. It is configured to use the message parsing template to decode the flight test telemetry data containing the message content of the ACARS message to convert it into the ACARS message.

10. The aircraft flight test real-time monitoring system based on telemetry technology as described in claim 9, characterized in that, The aircraft safety monitoring system includes a flight status parameter monitoring unit, which is configured to monitor in real time the trigger logic parameters representing the aircraft status contained in the test flight telemetry data, and determine whether the value of the monitored trigger logic parameter satisfies the message trigger logic.

11. The aircraft flight test real-time monitoring system based on telemetry technology as described in claim 10, characterized in that, The flight status parameter monitoring unit is configured to monitor, in real time, the trigger logic parameters including some or all of the following: Longitude, latitude, altitude, brake status, door status, international coordination time, landing gear system wheel load signals, and fuel consumption monitoring signals.

12. The aircraft flight test real-time monitoring system based on telemetry technology as described in claim 9, characterized in that, The aircraft safety monitoring system transmits the flight test telemetry data to the real-time monitoring and fault diagnosis system via serial communication and Ethernet.

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