Real-time transmission and multi-mode backup intelligent flight recording system

Abstract

The invention discloses an intelligent flight recording system with real-time transmission and multi-mode backup, and the system comprises a data real-time transmission function module which transmits recorded flight data, voice data and data link data to a ground server and a cloud server in real time through ATE ground-air communication and satellite communication; the data multi-mode backup function module is used for providing local backup and remote backup on a machine; the artificial intelligence auxiliary function module analyzes the data in the flight recording system in real time, identifies potential safety risks and abnormal conditions, and sends an early warning signal to the data multi-mode backup function module; the system control function module provides a pre-flight audio test function and a sound erasing function; and the system maintenance function module provides a self-testing function, a fault reporting function, a software loading function, a configuration reporting function and a state reporting function. According to the invention, data can be transmitted in real time, multi-mode backup and artificial intelligence auxiliary analysis are provided, and the integrity and security of the data are ensured.

Description

Technical Field

[0001] This invention relates to a flight recording system, and more particularly to an intelligent flight recording system with real-time transmission and multi-mode backup. Background Technology

[0002] The following four aspects of civil aircraft flight record systems are analyzed: 1. Current status of data transmission; Currently, data recorded by civil aircraft flight recorder systems must be manually acquired by ground staff after the aircraft lands via external devices. This data is then downloaded to the ground control center for further analysis and processing. This traditional data acquisition method inevitably leads to data delays. Because these critical data cannot be acquired and analyzed in real time during flight, the ground control center struggles to promptly identify and predict in-flight anomalies, which impacts operational efficiency and hinders fault prevention, accident investigation, and post-accident analysis.

[0003] 2. Current Status of Artificial Intelligence Applications; During flight, aircraft generate an enormous amount of data, making efficient processing and effective analysis a major challenge. Unfortunately, current flight recording systems have not yet been effectively integrated with AI technology. Relying solely on human intervention for data processing and analysis is not only inefficient but also fails to fully unlock the rich value hidden within the data. Furthermore, real-time data analysis and intelligent alerts are not possible, significantly limiting the improvement of flight safety management and operational efficiency.

[0004] 3. Current status of data backup; Currently, flight recording systems for civil aircraft both domestically and internationally primarily rely on onboard fixed recorders to record flight data, voice data, and data link data. In the event of an accident, the preservation of this critical data depends entirely on the onboard fixed recorder. Because flight recording systems can be damaged in an accident and lack backup capabilities from ground or cloud servers, critical data at the time of the accident cannot be saved, resulting in a low data survival rate and posing significant challenges to accident investigation and subsequent analysis.

[0005] 4. Current status of data recording duration; Existing flight recording systems often suffer from limitations due to their short recording duration. If an accident occurs outside this duration, obtaining complete data for accident investigation becomes extremely difficult. Furthermore, for complex accidents, in-depth analysis of the flight status prior to the accident often requires data spanning a longer period. However, the limited recording duration cannot meet the demands of such detailed data analysis, undoubtedly posing a significant challenge to accident investigation and causal analysis.

[0006] As can be seen from the above, traditional flight recording systems need to be improved in the following four aspects: 1. Real-time data transmission; To ensure data can be transmitted securely, stably, and in real-time to ground and cloud servers via multiple communication links, the aircraft must be equipped with advanced hardware, including high-performance airborne satellite communication modules and airborne ATE (Air-to-Ground) communication modules. Throughout the data transmission process, industry-leading encryption technology is employed to comprehensively encrypt the transmitted data. This not only effectively prevents data theft or tampering but also ensures the absolute confidentiality of sensitive information.

[0007] 2. Connect to the intelligent analysis system; AI technology can process massive amounts of data recorded by flight recording systems, analyze potential patterns and correlations, and improve flight safety and operational efficiency. Based on deep learning of historical data, AI can build accurate risk prediction models and identify safety risks in advance. During flight, AI monitors key parameters in real time and triggers emergency backups when anomalies occur, reducing the risk of data loss. In the event of data loss or corruption, AI can integrate data from different backup sources to ensure the integrity and consistency of the recovered data.

[0008] 3. Multi-mode backup; Multi-mode backup systems involve multiple components and devices. In actual operation, problems in any component can lead to backup failure. For example, power failures, communication link failures, and storage media damage can all affect the integrity and availability of backup data. Given these potential risks, multi-mode backup needs to consider the use of independent power supplies, multi-communication link design, remote backup via ground and cloud, and design to withstand extreme environments.

[0009] 4. Data is recorded over a long period of time; The flight recording system is equipped with a high-density, high-reliability, large-capacity storage module, capable of storing massive amounts of flight data, voice data, and data link data to ensure that the system can record data for extended periods. Summary of the Invention

[0010] The technical problem to be solved by the present invention is to provide an intelligent flight recording system with real-time transmission and multi-mode backup, which can transmit flight data in real time, provide multi-mode backup and artificial intelligence-assisted analysis, and ensure the integrity and security of the data.

[0011] To address the aforementioned technical problems, this invention provides an intelligent flight recording system with real-time transmission and multi-mode backup. The system includes a real-time data transmission module that transmits recorded flight data, voice data, and data link data to a ground server and a cloud server in real time via ATE (Air-to-Ground) communication and satellite communication; a multi-mode data backup module that provides onboard local backup and remote backup, wherein the onboard local backup uses two identical enhanced airborne flight recorders for redundant backup of flight data; an artificial intelligence-assisted module that performs real-time analysis of the data in the flight recording system, identifies potential safety risks and anomalies, and issues warning signals to the multi-mode data backup module; a system control module that provides pre-flight audio testing and erasure functions; and a system maintenance module that provides self-testing, fault reporting, software loading, configuration reporting, and status reporting functions.

[0012] Furthermore, the real-time data transmission module will support multiple frequency bands of 5G links as the main channel and satellite communication links as backup channels; when the 5G link is unavailable or the signal is poor, it will seamlessly switch to the satellite communication link to continue transmitting flight data in real time.

[0013] Furthermore, the data multi-mode backup function module also provides an emergency global backup function, which is divided into automatic backup and manual backup; when flight parameters exceed the normal range or sensor failure occurs, automatic global backup is activated.

[0014] Furthermore, one of the enhanced airborne flight recorders is installed at the front of the aircraft, and the other at the rear. When the flight recording system loses its onboard power, an independent power supply is used to power the area microphones and the front-mounted enhanced airborne flight recorder. The enhanced airborne flight recorder converts the collected voice information into a digital voice stream for recording and storage. When it receives an audio test command from the recorder control board, the digital voice is converted into an analog signal inside the enhanced airborne flight recorder, and then the voice information is fed back to the headphone jack of the recorder control board through the analog interface to verify the smoothness of the entire audio loop.

[0015] Furthermore, the enhanced airborne flight recorder employs a large-capacity storage module and is equipped with an airborne AI analysis module, an airborne ATE ground-to-air communication module, and an airborne satellite communication module. The airborne AI analysis module selectively performs real-time analysis of key flight parameters, monitors and issues warnings through anomaly detection algorithms, and automatically activates an emergency global backup function in emergencies. The airborne ATE ground-to-air communication module establishes a communication link with a ground 5G base station via a 5G antenna. After data is processed by the airborne ATE ground-to-air communication module, it is transmitted in real-time to the ground 5G base station via the 5G link. The ground 5G base station then transmits the data in real-time to ground servers and cloud servers for storage, management, and analysis. The 5G link serves as the main channel for real-time data transmission. Simultaneously, the airborne satellite communication module transmits flight record data to a satellite in real-time via a satellite link. The satellite then forwards the data in real-time to a ground satellite receiving station, which transmits the received data in real-time to ground servers and cloud servers for storage, management, and analysis.

[0016] Furthermore, the AI-assisted functional module includes: AI data analysis function: analyzing real-time transmitted data using AI algorithms to generate analysis reports and optimization suggestions; AI-assisted accident prevention function: analyzing data in the flight record system in real time using AI algorithms to promptly identify potential safety risks and anomalies and issue early warning signals; and analyzing historical flight data to uncover potential safety hazards; and AI-assisted data backup and recovery function: detecting anomalies and automatically activating emergency global backup function; and quickly recovering data in case of partial loss or damage.

[0017] Furthermore, the self-testing function provided by the system maintenance function module includes power-on self-test, periodic self-test, and maintenance self-test; and monitors the system status through the self-testing function, and immediately sends a fault report to the airborne health management system upon detecting a fault; the system maintenance function module periodically outputs system configuration information, covering the system ID, hardware and software part numbers and version numbers.

[0018] The present invention also provides a control method for the above-mentioned intelligent flight recording system with real-time transmission and multi-mode backup, comprising the following steps: Startup Phase: During the startup phase, the flight record system initializes after power-on, completes the self-test of each module, puts the test results into the status word, and reports to the airborne health management system. Real-time transmission phase: After entering the real-time transmission phase, data is recorded and transmitted in real time over a long period of time. The transmitted data is then analyzed by AI to monitor the safety status of the aircraft. Distress Alarm Phase: During the real-time transmission phase, when distress conditions are met, the flight record system enters AI warning mode, i.e., the distress alarm phase. If the distress conditions are detected to be resolved during the distress alarm phase, the system re-enters the AI ​​data analysis phase of the real-time transmission phase to continue monitoring the aircraft's safety status. Distress Backup Phase: In AI early warning mode, when the backup conditions are met, the flight record system enters the distress backup phase, during which an emergency global backup is performed.

[0019] Furthermore, the silencing function is fully locked throughout the entire flight phase, and the following data is recorded: Taxi to takeoff phase: The data recording function simultaneously records all necessary flight parameters and intensive communication between the crew and ground control or tower; when the pilot pushes the throttle stick to takeoff power, the data recording function begins to record airspeed acceleration, engine thrust, and pitch attitude; at the same time, the self-test function continuously monitors parameters, and once an anomaly is detected, it immediately alerts the crew through the fault reporting function; Cruise phase: The data recording function continuously collects flight parameters and cockpit ambient sound, the configuration report function monitors system configuration information, including system ID, hardware and software part numbers and version numbers, and the status report function periodically reports the status information of important system functions, and monitors the flight status in real time; Approach to landing phase: The data recording function records the aircraft's deviation from the runway throughout the entire process, captures the ground load and nose lift data at the moment of touchdown, as well as the crew's standard announcements, communication with the tower, and any abnormal sounds throughout the process; the status report function focuses on the functional status of the landing system.

[0020] Furthermore, after landing, data download and safety confirmation are completed first, and then the noise erasure operation is performed according to procedures; the engine, hydraulic and flight control parameters continuously recorded during the flight are processed by the AI ​​data analysis function to generate maintenance work orders; abnormal engine vibration and actuator performance degradation risks are accurately identified, and the location and type of potential hazards are automatically generated; mechanical damage or high-pressure fluid impact caused by unknown faults are eliminated, realizing pre-treatment for maintenance safety.

[0021] Compared with the prior art, the present invention has the following advantages: The intelligent flight recording system with real-time transmission and multi-mode backup provided by the present invention can transmit the data recorded by the flight recording system in real time, provide multi-mode backup and artificial intelligence-assisted analysis, and ensure the integrity and security of the data. Attached Figure Description

[0022] Figure 1 This is a functional block diagram of the intelligent flight record system with real-time transmission and multi-mode backup according to the present invention; Figure 2 This is a schematic diagram of the intelligent flight recording system architecture for real-time transmission and multi-mode backup according to the present invention; Figure 3This is a schematic diagram of the workflow of the intelligent flight record system with real-time transmission and multi-mode backup according to the present invention. Detailed Implementation

[0023] The present invention will now be further described with reference to the accompanying drawings and embodiments.

[0024] To address the aforementioned problems, the intelligent flight recording system with real-time transmission and multi-mode backup provided by this invention has the following main improvements: 1. Real-time transmission of critical data is achieved through ATE ground-to-air communication and satellite communication; The flight recording system of this invention transmits recorded flight data, voice data, and data link data to ground and cloud servers in real time via ATE (Air-to-Ground Communication) and satellite communication. Even if an accident damages the aircraft's recorder, the data backed up on the ground or in the cloud can still be used.

[0025] ATE (Air-to-Ground Communication): Leveraging the high bandwidth and low latency of 5G networks, flight data can be transmitted in real time to ground and cloud servers, ensuring that ground control centers can monitor flight status in real time based on the transmitted data. In case of distress, data can be quickly backed up, reducing the risk of data loss due to latency.

[0026] Satellite communication convergence: In remote areas with insufficient 5G signal coverage, satellite communication technology can be used to achieve remote data transmission, thereby ensuring the continuity of real-time data transmission.

[0027] 2. Integrate with AI to achieve intelligent data analysis and processing; The flight recording system of this invention analyzes real-time transmitted data using AI algorithms to generate optimization suggestions, assisting pilots and ground control centers in making more rational flight decisions. Simultaneously, it utilizes AI algorithms to analyze historical data, identify potential safety hazards, and ensure flight safety. Furthermore, AI technology enables multi-mode backup in emergency situations—onboard, on the ground, and in the cloud—to preserve data; and optimizes the data recovery process, allowing for rapid recovery even in cases of partial data loss or damage.

[0028] 3. Employ multi-mode backup to improve data survival rate; The flight recording system of the present invention has the ability to perform local backup and remote backup, and can realize multi-mode data backup, thereby improving the data survival rate.

[0029] Local backup: Two identical enhanced flight recorders are installed on the aircraft, one at the front and the other at the rear. Data is synchronized in real time to the high-capacity storage modules of these two enhanced flight recorders, thereby increasing data redundancy and achieving onboard local backup of the data.

[0030] Remote backup: Data is transmitted in real time to ground servers and cloud servers through ATE ground-to-air communication and satellite communication technologies, thereby achieving remote data backup.

[0031] Multi-channel data transmission: The flight recording system of this invention is a multi-channel data transmission system that simultaneously employs a 5G link and a satellite communication link. The 5G link serves as the primary channel, while the satellite communication link acts as a backup channel. When the primary channel fails, data can continue to be transmitted through the backup channel, thus ensuring the continuity of data transmission.

[0032] Redundancy backup: Data is simultaneously stored in two enhanced onboard flight recorders (located at the front and rear of the aircraft), a ground server, and a cloud server to prevent data loss. These two enhanced onboard flight recorders are identical in design, ensuring the consistency of the stored data.

[0033] Blockchain technology: With the help of blockchain's distributed ledger technology, data can be encrypted and uploaded to the blockchain network in real time. This process ensures that the data is tamper-proof and traceable. Furthermore, because the data is backed up on multiple blockchain nodes, a decentralized storage system is formed. Even if some nodes are damaged, the data can be fully recovered, thereby fully guaranteeing the authenticity and integrity of the data.

[0034] Emergency Communication Support: In the event of an aircraft emergency, ATE (Air-to-Ground) communication prioritizes data-intensive communications, ensuring the transmission of critical data. This invention's flight recording system utilizes this characteristic of ATE communication, employing AI to identify emergency situations and automatically activate emergency global backup, thereby ensuring that critical data is prioritized for transmission and backup in the event of an aircraft emergency.

[0035] Extreme environment resistant design: The high-capacity storage modules on the aircraft are made of high-strength materials and are designed to be resistant to high temperature, high pressure, corrosion and impact, thereby ensuring the physical integrity of the data storage media in the event of an accident.

[0036] 4. Design a large-capacity storage module to enable long-term data recording; Solid-state drives (SSDs) offer advantages such as high read / write speeds, high storage density, and resistance to shock and vibration. Therefore, a large-capacity SSD is configured for the storage module of the enhanced airborne flight recorder. Simultaneously, lossless compression algorithms are employed to compress the data, ensuring data integrity and recoverability while reducing storage space usage, thereby extending data recording time.

[0037] Please see Figure 1The intelligent flight recording system with real-time transmission and multi-mode backup provided by this invention includes five functional modules: a real-time data transmission module, a multi-mode data backup module, an artificial intelligence-assisted module, a system control module, and a system maintenance module. The detailed design of each functional module is as follows: 1. Real-time data transmission module; ATE air-to-ground communication link real-time transmission function: ATE air-to-ground communication supports multiple frequency bands and features high-speed transmission and low latency, ensuring the stability and continuity of data transmission. Therefore, through ATE air-to-ground communication, flight data, voice data, and data link data can be transmitted to ground servers and cloud servers in real time.

[0038] Real-time transmission via satellite communication link: The real-time transmission function of the satellite communication link can serve as a backup channel. When ATE air-to-ground communication is unavailable or the signal is poor, the flight recording system can seamlessly switch to the satellite communication link to continue transmitting flight data in real time, thereby ensuring the continuity of data transmission.

[0039] 2. Multi-mode data backup function module; Real-time backup function: Data collected by the flight recording system can be transmitted in real time to ground servers and cloud servers for storage via ATE air-to-ground communication or satellite communication links, thus achieving real-time data backup. Users can select the backup scope according to their actual needs, including ground servers and cloud servers.

[0040] Emergency Global Backup Function: The flight record system of this invention can achieve emergency global backup capability. Emergency backup is divided into two modes: automatic backup and manual backup. Automatic backup utilizes AI technology to analyze data in real time. Once an anomaly is detected, such as flight parameters exceeding normal ranges or sensor malfunctions, an alarm will be immediately issued and a global backup will be automatically initiated. Manual backup, on the other hand, involves the cockpit alarm system alerting the pilot when an anomaly is detected, allowing the pilot to manually initiate a global backup. Global backup refers to backups performed on the aircraft's large-capacity storage module, ground servers, and cloud servers.

[0041] Data encryption: Employing data encryption technology ensures the security of all data during real-time transmission and backup storage. This prevents data interception during transmission and ensures that even if data is illegally obtained, it cannot be deciphered.

[0042] Backup power function: When the aircraft is in distress and the flight recording system loses its onboard power, the independent power supply can power the area microphone and the front-mounted enhanced onboard flight recorder, enabling it to continue recording 10±1 minutes of voice information.

[0043] Long-term data recording function: The flight recording system of this invention is equipped with a large-capacity storage module, which ensures that data collected and recorded over a long period of time can be properly stored. This storage module not only has a large capacity but also high reliability and shock resistance, enabling it to operate stably in harsh flight environments.

[0044] Data recording function: The flight recording system can collect and record flight data, voice data, and data link data, which can be downloaded by ground control centers or airborne maintenance personnel.

[0045] Underwater positioning function: The flight recording system of this invention is equipped with an underwater positioning beacon. In the event of an aircraft accident and crash into the sea, the underwater positioning beacon will immediately send sonar signals upon contact with the water, which will assist in post-accident search and rescue operations.

[0046] Ensuring secure network data communication: With ATE air-to-ground and satellite communication capabilities, the flight recording system can transmit data to ground and cloud servers in real time using a secure and encrypted network connection around the clock.

[0047] 3. Artificial intelligence-assisted function module; AI data analysis function: It uses AI algorithms to analyze real-time transmitted data, generate analysis reports and optimization suggestions, thereby assisting pilots and ground control centers in making more reasonable flight decisions.

[0048] AI-assisted accident prevention function: AI algorithms can perform real-time analysis of data in the flight recorder system, promptly identify potential safety risks and anomalies, and quickly issue early warning signals. Furthermore, through in-depth analysis of historical flight data, AI can uncover potential safety hazards, thereby helping airlines to eliminate these hazards in a timely manner and prevent accidents from occurring.

[0049] AI-assisted data backup and recovery function: Utilizing AI technology, it can detect anomalies and automatically activate the emergency global backup function; on the other hand, it can optimize the data recovery process to ensure rapid recovery when some data is lost or damaged.

[0050] 4. System control function module; Pre-flight audio test function: By conducting pre-flight audio tests, the flight recording system is ensured to clearly and accurately record audio signals during the flight, in order to meet the needs of accident investigation and flight analysis.

[0051] Eradication function: The erase function can be activated when it is necessary to clear old recordings to make room for new data, or when unnecessary recordings need to be cleared during aircraft maintenance and testing.

[0052] 5. System maintenance function module; Self-test function: Real-time monitoring, diagnosis, and reporting of system status to ensure equipment reliability and maintainability. Specific measures include power-on self-test, periodic self-test, and maintenance self-test.

[0053] Fault reporting function: The system status is monitored through the self-test function. Once a fault is detected, the flight record system will immediately report the fault result to the airborne health management system.

[0054] Software loading function: The software can be transferred from the ground station to the aircraft's flight record system via the software loading control panel.

[0055] Configuration report function: It can periodically output system configuration information, including system ID, hardware and software part numbers and version numbers.

[0056] Status reporting function: It can periodically report the status information of important system functions, including data logging function, backup power function, pre-flight audio test function, erase function, and software loading function.

[0057] Ensuring the safety of maintenance and ground personnel: Key parameters are continuously monitored throughout the flight. After landing, AI data analysis identifies potential risks and automatically generates maintenance work orders with hazard information. Maintenance personnel can then conduct targeted repairs based on these work orders, mitigating the risk of sudden mechanical injuries and achieving proactive safety assurance during maintenance.

[0058] Description of the interconnections between the various functional modules: The data logging function records flight data, voice data, and data link data, providing this data to the ATE (Air-to-Ground) ground communication link and satellite communication link real-time transmission functions to achieve multi-channel real-time data transmission. Simultaneously, the ATE and satellite communication link real-time transmission functions provide data requiring backup to the real-time backup and emergency global backup functions. Furthermore, the data encryption function supports the ATE, satellite communication link, real-time backup, and emergency global backup functions, ensuring the security of all data during real-time transmission and backup storage, preventing data interception during transmission, and ensuring that even if data is illegally obtained, it cannot be deciphered. The network data communication security function provides data communication security guarantees for the ATE and satellite communication link real-time transmission functions.

[0059] The extended data recording function ensures complete data recording, with sufficient duration to meet the needs of detailed data analysis. The pre-flight audio test function ensures the accuracy of the audio data recorded by the data recording function. The backup power function can maintain data recording for 10 ± 1 minutes in the event of an onboard power failure.

[0060] Underwater positioning ensures the retrieval of onboard backup data in the event of an aircraft crash into the sea, providing recorded data for AI-assisted data backup and recovery. Real-time transmission via ATE (Air-to-Ground) and satellite communication links provides recorded data for AI data analysis and AI-assisted accident prevention functions. The AI ​​data analysis function provides data analysis results for AI-assisted accident prevention. Emergency global backup provides recorded data for AI-assisted data backup and recovery.

[0061] The self-test function can monitor the status of pre-flight audio test function, erase function, backup power function, data logging function, and software loading function, as well as monitor system configuration. It can also monitor fault conditions and report the relevant information to the airborne health management system through status report function, configuration report function, and fault report function.

[0062] Example 1 (Normal Flight): 1. Pre-flight preparation: Functional pre-verification to establish a solid safety foundation; During the pre-flight preparation phase, the pre-flight audio test function requires the crew to speak into the microphones at various locations in the cockpit in sequence and listen to the transmitted audio in real time. This systematically verifies the integrity and recording clarity of all channels of the enhanced airborne flight recorder, ensuring that the subsequent data recording function can record all conversations and ambient sounds completely and reliably.

[0063] 2. Throughout the entire flight phase: Multifunctional collaboration dynamically safeguards safety; From taxiing to takeoff: The data recording function simultaneously records all necessary flight parameters and intensive communications between the crew and ground control or tower. When the pilot pushes the throttle to takeoff power, the data recording function begins recording key data such as airspeed acceleration, engine thrust, and pitch attitude. At the same time, the self-test function continuously monitors parameters, and if any abnormality is detected, it immediately alerts the crew through the fault reporting function to ensure takeoff safety.

[0064] During the cruise phase: The data logging function continuously collects flight parameters and cockpit ambient sound, the configuration report function monitors system configuration information, including system ID, hardware and software part numbers and version numbers, and the status report function periodically reports the status information of important system functions. The three functions work closely together to monitor the flight status in real time.

[0065] From approach to landing: The data recording function records the aircraft's deviation from the runway throughout the entire process, capturing key data such as ground load and nose lift at the moment of touchdown, as well as the crew's standard announcements, communications with the control tower, and any abnormal sounds throughout the process; the status reporting function focuses on the functional status of the landing system, jointly ensuring a safe and controllable landing process.

[0066] Core Interconnection Throughout the Process: The data recording function is the fundamental starting point for ensuring flight safety and operational optimization. All recorded data is first provided to the ATE (Air-to-Ground Communication) and satellite communication links for real-time transmission, ensuring stable and real-time data transfer. The data is then synchronized to a real-time backup function, providing dual protection for flight data security and preventing data loss due to unforeseen circumstances. Data encryption and network data communication security functions provide comprehensive protection, ensuring secure data transmission and storage and preventing data leakage or unauthorized interpretation. This data is simultaneously pushed to AI data analysis and AI-assisted accident prevention functions. The former extracts data value to support operational decisions, while the latter uses highly sensitive algorithms to identify potential risks and provides timely warnings via fault reporting. Furthermore, the long-term data recording function continuously stores data throughout the entire process, laying the foundation for risk analysis and operational optimization. The silencing function completely locks the system throughout the entire flight phase, preventing critical data from being tampered with or erased.

[0067] The long-term data recording function supports storage periods covering the entire flight journey and even long-term operational sequences, without being limited by the end of a single flight mission. This long-term retained data provides core support for AI-assisted accident prevention functions. The massive amounts of historical flight data accumulated can be analyzed by AI across multiple dimensions to accurately extract risk patterns, providing a basis for safety measure formulation. On the other hand, the long-term recorded data also provides AI data analysis functions with broader analytical dimensions, helping to generate in-depth suggestions from a long-term operational perspective, such as route optimization, aircraft allocation, and maintenance cycle planning, thereby improving the overall operational efficiency of airlines. Furthermore, complete long-term recorded data is also a crucial foundation for flight accident tracing, operational compliance audits, and aviation technology iteration, building a long-term guarantee for flight safety and operational optimization.

[0068] 3. After landing: Functional continuity ensures data security and maintenance safety; Data security assurance: Authorized maintenance personnel must first complete the data download and security confirmation before performing the erasure operation according to the procedure. This ensures the integrity and non-interference of the entire flight recording and also reserves storage space for the next flight.

[0069] Pre-emptive maintenance safety: Key parameters such as engine and hydraulic systems continuously recorded during flight are processed by AI data analysis to generate precise maintenance work orders, clearly identifying the location and type of potential hazards. This collaborative approach allows maintenance personnel to conduct targeted repairs, avoiding mechanical damage or high-pressure fluid impacts due to unknown faults, thus ensuring pre-emptive maintenance safety.

[0070] 4. Routine maintenance: Iterate and optimize functions to enhance system reliability; The software loading function updates system software to fix defects, adapt to new hardware data formats, and introduce efficient data processing algorithms to ensure that the flight record system always meets safety regulatory requirements.

[0071] Ensuring the safety of maintenance and ground personnel involves continuously monitoring and recording critical parameters such as engine, hydraulic, and flight control systems throughout the flight. After landing, AI data analysis accurately identifies potential risks such as abnormal engine vibration and actuator performance degradation, automatically generating maintenance work orders that mark the location and type of potential hazards. With this comprehensive risk information, maintenance personnel can proactively implement targeted repair measures, fundamentally avoiding dangers such as sudden mechanical injuries and high-pressure fluid impacts caused by unknown faults, thus achieving proactive safety assurance for maintenance.

[0072] Example 2 (Flight Distress): When an aircraft encounters a serious malfunction, loss of control, or other emergency, the various functions of the enhanced onboard flight recorder will work together precisely to ensure the integrity and traceability of the data.

[0073] If the aircraft's main power supply fails, the backup power function will immediately take over, providing independent power to the front-mounted enhanced onboard flight recorder and area microphones, ensuring critical data is recorded until the very last moment. The data recording function operates at the highest standards, recording critical data including control surface inputs, aircraft attitude, flight path, engine status, warnings, and configurations. This critical data is simultaneously transmitted in real-time via the ATE air-to-ground communication link and the satellite communication link, providing necessary backup data to the emergency global backup function, and then supplying the recorded data to the AI-assisted data backup and recovery function. Investigators can use this complete data recording to accurately calculate the aircraft's final trajectory and analyze whether the failure was caused by mechanical reasons, human error, or external factors.

[0074] If the enhanced airborne flight recorder crashes into the sea, its underwater positioning function will activate, emitting ultrasonic pulses at 37.5 kHz per second for at least 30 days, helping search and salvage teams to quickly locate the device.

[0075] Please continue reading Figure 2 The flight recording system of this invention includes a front-mounted enhanced airborne flight recorder, a rear-mounted enhanced airborne flight recorder, an independent power supply, and a zone microphone. Its detailed design is as follows: This invention's flight recording system employs two identical enhanced airborne flight recorders in a redundant design for onboard data backup. These recorders are installed in robust locations on the aircraft, thereby improving data survival rates in the event of an accident. Building upon this, the front-mounted and rear-mounted enhanced airborne flight recorders have been improved, incorporating an onboard AI analysis module, an onboard ATE (Air-to-Ground) communication module, and an onboard satellite communication module. Simultaneously, the data storage module has been upgraded to a high-capacity storage module. The high-capacity storage module offers customizable storage capacities ranging from 128GB to 1TB, supporting multiple customization options including 128GB, 256GB, 512GB, and 1TB. It provides ample data buffer space and a higher sampling rate, supporting the recording of more parameters and larger volumes of data. It can store not only basic flight data, voice data, and data link data, but also cockpit video data and higher-frequency data recording requirements, adapting to more complex usage scenarios.

[0076] The airborne AI analysis module selectively analyzes key flight parameters in real time, monitors and issues warnings through anomaly detection algorithms, and automatically activates emergency global backup in emergencies. The airborne ATE (Air-to-Ground) communication module establishes a communication link with a ground-based 5G base station via a 5G antenna. Data processed by the airborne ATE module is transmitted in real-time to the ground-based 5G base station via the 5G link. The ground-based 5G base station then transmits the data in real-time to ground servers and cloud servers for storage, management, and analysis. The 5G link serves as the primary channel for real-time data transmission. Simultaneously, the airborne satellite communication module transmits flight record data to a satellite in real-time via a satellite link. The satellite then forwards the data to a ground satellite receiving station, which transmits the received data in real-time to ground servers and cloud servers for storage, management, and analysis. Due to the wide coverage of satellite communication and its independence from ground base station locations, the satellite communication link serves as a backup channel for real-time data transmission in areas without ground base station coverage, such as oceans and remote regions.

[0077] The data recorded by the flight recording system can be transmitted in real time to ground and cloud servers via onboard 5G links from both the front-mounted and rear-mounted enhanced airborne flight recorders, or via onboard satellite communication links, achieving a multi-communication link design and redundant data backup. Simultaneously, blockchain technology is used to transmit data to the cloud server in real time, and leveraging the blockchain's incentive mechanism, the data is stored across multiple cloud nodes, constructing a decentralized storage system.

[0078] The ground control center is equipped with a ground-based AI analysis module. This module can learn from and analyze large amounts of historical data to identify patterns and regularities in normal flight data. Based on these patterns, combined with meteorological and airspace information, it can help formulate more optimized flight plans. By comparing the patterns in normal flight data with current flight data, it can predict potential impacts on the aircraft, thereby assisting in adjusting flight plans, guiding aircraft back to base, or taking other safety measures, ultimately improving flight efficiency and safety.

[0079] The recorder control board is connected to the remote data conversion unit via a CAN bus, which then transmits control signals to the enhanced airborne flight recorder. The enhanced airborne flight recorder converts the acquired voice information into a digital voice stream for recording and storage. When it receives an audio test command from the recorder control board, the digital voice is converted into an analog signal inside the enhanced airborne flight recorder, and then the voice information is fed back to the headphone jack of the recorder control board through the analog interface to verify the continuity of the entire audio loop.

[0080] The independent power supply is directly connected to the front-mounted enhanced flight recorder and the area microphone. When the aircraft is in normal flight, the onboard power supply powers the front-mounted enhanced flight recorder and the area microphone through the independent power supply. When the aircraft is in distress, the system switches to the independent power supply, which can continue to support the recorder's operation and record 10±1 minutes of voice information.

[0081] The area microphone transmits cockpit voice information to the front-mounted enhanced airborne flight recorder and the rear-mounted enhanced airborne flight recorder via an analog interface.

[0082] Please continue reading Figure 3 The workflow of the flight recording system of the present invention is as follows: Startup Phase: During the startup phase, the flight record system initializes after power-on, completes the self-test of each module, puts the test results into the status word, and reports to the airborne health management system. Real-time transmission phase: After entering the real-time transmission phase, the system records and transmits data for a long time in real time. The real-time transmitted data is used by AI for analysis to monitor the safety status of the aircraft. Distress Alert Phase: During the real-time transmission phase, when distress conditions are met, the flight recorder enters AI warning mode, i.e., the distress alert phase begins. If the distress conditions are detected as resolved during the distress alert phase, the system re-enters the AI ​​data analysis phase of real-time transmission to continue monitoring the aircraft's safety status. Distress Backup Phase: In AI early warning mode, when the backup conditions are met, the flight record system enters the distress backup phase, during which an emergency global backup is performed.

[0083] The flight recording system provided by this invention has the following positive effects and advantages compared with existing flight recording systems: 1. Real-time data transmission; By transmitting flight data in real time, ground monitoring centers can monitor the aircraft's flight status, promptly identify potential safety hazards and issue warnings, thereby taking appropriate measures to prevent accidents. In the event of an accident, the real-time transmitted data can be immediately provided to accident investigators, helping them quickly understand the detailed circumstances leading up to the accident, thus accelerating the investigation and improving the efficiency of accident handling.

[0084] 2. Artificial intelligence-assisted analysis; AI algorithms, through in-depth analysis of historical flight data, can uncover potential safety hazards, helping airlines to eliminate them promptly and prevent incidents from occurring. In emergencies, AI technology can detect anomalies and automatically initiate global data backups, enabling multi-mode data backup to preserve critical data at the time of the incident to the greatest extent possible. Furthermore, AI technology optimizes the data recovery process, allowing for rapid data recovery even if some data is lost or damaged.

[0085] 3. Multi-mode backup; The flight record system provided in this application stores data in multiple locations—onboard, on the ground, and in the cloud—through backups. Even if one backup fails, the others ensure data integrity and availability. In the event of an accident, the onboard backup may be compromised, but the ground and cloud backups provide additional security, ensuring critical data is not lost and increasing the probability of data survival. Furthermore, multiple data sets can corroborate each other, further ensuring data accuracy.

[0086] 4. Data is recorded over a long period of time; Long-term data recording ensures data integrity, providing comprehensive data support for flight safety, accident investigations, and aircraft maintenance. Furthermore, complete data records help managers and decision-makers gain a more accurate understanding of aircraft operational status.

[0087] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications and improvements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be defined by the claims.

Claims

1. An intelligent flight recording system with real-time transmission and multi-mode backup, characterized in that, include: The real-time data transmission module transmits the recorded flight data, voice data, and data link data to the ground server and cloud server in real time through ATE ground-to-air communication and satellite communication. The data multi-mode backup function module provides onboard local backup and remote backup. The onboard local backup uses two identical enhanced onboard flight recorders to perform redundant backup of the data. The AI-assisted function module performs real-time analysis of data in the flight record system, identifies potential safety risks and anomalies, and issues early warning signals to the data multi-mode backup function module. The system control module provides pre-flight audio testing and noise erasure functions; The system maintenance module provides self-testing, fault reporting, software loading, configuration reporting, and status reporting functions.

2. The intelligent flight recording system with real-time transmission and multi-mode backup as described in claim 1, characterized in that, The real-time data transmission module will support multiple frequency bands of 5G links as the main channel and satellite communication links as backup channels; when the 5G link is unavailable or the signal is poor, it will seamlessly switch to the satellite communication link to continue transmitting flight data in real time.

3. The intelligent flight record system with real-time transmission and multi-mode backup as described in claim 1, characterized in that, The data multi-mode backup function module also provides an emergency global backup function, which is divided into automatic backup and manual backup; when flight parameters exceed the normal range or sensor failure occurs, automatic global backup is activated.

4. The intelligent flight recording system with real-time transmission and multi-mode backup as described in claim 1, characterized in that, One of the enhanced airborne flight recorders is installed at the front of the aircraft, and the other at the rear. When the flight recording system loses its onboard power, an independent power supply is used to power the area microphones and the front-mounted enhanced airborne flight recorder. The enhanced airborne flight recorder converts the collected voice information into a digital voice stream for recording and storage. When it receives an audio test command from the recorder control board, the digital voice is converted into an analog signal inside the enhanced airborne flight recorder, and then the voice information is fed back to the headphone jack of the recorder control board through the analog interface to verify the smoothness of the entire audio loop.

5. The intelligent flight recording system with real-time transmission and multi-mode backup as described in claim 1, characterized in that, The enhanced airborne flight recorder uses a large-capacity storage module and is equipped with an airborne AI analysis module, an airborne ATE ground-to-air communication module, and an airborne satellite communication module. The airborne AI analysis module selectively analyzes key flight parameters in real time, monitors and issues warnings through anomaly detection algorithms, and automatically activates emergency global backup in emergencies. The airborne ATE ground-to-air communication module establishes a communication link with a ground 5G base station via a 5G antenna. After data is processed by the airborne ATE ground-to-air communication module, it is transmitted in real time to the ground 5G base station via the 5G link. The ground 5G base station then transmits the data in real time to ground servers and cloud servers for storage, management, and analysis. The 5G link serves as the main channel for real-time data transmission. Simultaneously, the airborne satellite communication module transmits flight record data to the satellite in real time via a satellite link. The satellite then forwards the data to the ground satellite receiving station in real time. The ground satellite receiving station transmits the received data in real time to ground servers and cloud servers for storage, management, and analysis.

6. The intelligent flight recording system with real-time transmission and multi-mode backup as described in claim 1, characterized in that, The AI-assisted function module includes: AI data analysis function: Analyzes real-time transmitted data using AI algorithms to generate analysis reports and optimization suggestions; AI-assisted accident prevention function: Through AI algorithms, the data in the flight record system is analyzed in real time to identify potential safety risks and anomalies and issue early warning signals; and by analyzing historical flight data, potential safety hazards are uncovered. AI-assisted data backup and recovery function: detects anomalies and automatically activates emergency global backup function; at the same time, it performs rapid recovery when some data is lost or damaged.

7. The intelligent flight recording system with real-time transmission and multi-mode backup as described in claim 1, characterized in that, The self-testing function provided by the system maintenance function module includes power-on self-test, periodic self-test, and maintenance self-test; and monitors the system status through the self-testing function, and immediately sends a fault report to the airborne health management system after a fault is detected; the system maintenance function module periodically outputs system configuration information, including system ID, hardware and software part numbers and version numbers.

8. A control method for an intelligent flight record system with real-time transmission and multi-mode backup as described in claim 1, characterized in that, Includes the following steps: Startup Phase: During the startup phase, the flight record system initializes after power-on, completes the self-test of each module, puts the test results into the status word, and reports to the airborne health management system. Real-time transmission phase: After entering the real-time transmission phase, data is recorded and transmitted in real time over a long period of time. The transmitted data is then analyzed by AI to monitor the safety status of the aircraft. Distress Alarm Phase: During the real-time transmission phase, when distress conditions are met, the flight record system enters AI warning mode, i.e., the distress alarm phase. If the distress conditions are detected to be resolved during the distress alarm phase, the system re-enters the AI ​​data analysis phase of the real-time transmission phase to continue monitoring the aircraft's safety status. Distress Backup Phase: In AI early warning mode, when the backup conditions are met, the flight record system enters the distress backup phase, during which an emergency global backup is performed.

9. The control method of the intelligent flight record system with real-time transmission and multi-mode backup as described in claim 8, characterized in that, The erase function was completely locked throughout the entire flight phase, and the following data was recorded: Taxiing to takeoff: The data recording function simultaneously records all necessary flight parameters and intensive communication between the crew and ground control or tower; when the pilot pushes the throttle stick to takeoff power, the data recording function begins to record airspeed acceleration, engine thrust and pitch attitude; at the same time, the self-test function continuously monitors parameters, and once an anomaly is detected, it immediately alerts the crew through the fault reporting function; During the cruise phase: The data logging function continuously collects flight parameters and cockpit ambient sound; the configuration report function monitors system configuration information, including system ID, hardware and software part numbers and version numbers; and the status report function periodically reports the status information of important system functions to monitor the flight status in real time. From approach to landing: The data recording function records the aircraft's deviation from the runway throughout the entire process, captures the ground load and nose lift data at the moment of touchdown, as well as the crew's standard announcements, communications with the control tower, and any abnormal sounds throughout the process; the status reporting function focuses on the functional status of the landing system.

10. The control method of the intelligent flight record system with real-time transmission and multi-mode backup as described in claim 8, characterized in that, After landing, complete the data download and safety confirmation first, and then perform the noise erasure operation according to the procedure; The engine, hydraulic, and flight control parameters continuously recorded during flight are processed by AI data analysis to generate maintenance work orders; abnormal engine vibration and actuator performance degradation risks are accurately identified, and the location and type of potential hazards are automatically generated and marked. Eliminate mechanical damage or high-pressure fluid impact caused by unknown faults, and achieve safe pre-treatment for maintenance.

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